diff options
| author | Mattias Andrée <maandree@kth.se> | 2017-10-12 22:37:49 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2017-10-12 22:37:49 +0200 |
| commit | a2f3b7bc25c659542b20c5b252324cf8477f05a3 (patch) | |
| tree | 3c14ab02495f04ca937072eb976464ea7baadf17 | |
| parent | update dist (diff) | |
| download | adjbacklight-8.0.tar.gz adjbacklight-8.0.tar.bz2 adjbacklight-8.0.tar.xz | |
Rewrite with style (and relicense)8.0
Signed-off-by: Mattias Andrée <maandree@kth.se>
| -rw-r--r-- | .gitignore | 41 | ||||
| -rw-r--r-- | COPYING | 16 | ||||
| -rw-r--r-- | LICENSE | 683 | ||||
| -rw-r--r-- | Makefile | 224 | ||||
| -rw-r--r-- | README | 46 | ||||
| -rw-r--r-- | adjbacklight.1 (renamed from doc/man/adjbacklight.1) | 77 | ||||
| -rw-r--r-- | adjbacklight.c | 425 | ||||
| -rw-r--r-- | arg.h | 76 | ||||
| -rw-r--r-- | config.mk | 6 | ||||
| -rw-r--r-- | dist/archlinux/stable/PKGBUILD | 26 | ||||
| -rw-r--r-- | dist/archlinux/stable/adjbacklight.install | 20 | ||||
| -rw-r--r-- | doc/info/adjbacklight.texinfo | 252 | ||||
| -rw-r--r-- | doc/info/fdl.texinfo | 505 | ||||
| -rw-r--r-- | doc/info/gpl.texinfo | 717 | ||||
| -rw-r--r-- | src/adjbacklight.auto-completion | 17 | ||||
| -rw-r--r-- | src/adjbacklight.c | 872 |
16 files changed, 596 insertions, 3407 deletions
@@ -1,41 +1,6 @@ -_/ -bin/ -obj/ -.* -!.git* *~ -\#*\# -*.swp -*.bak -*.pdf -*.ps -*.dvi -*.info -*.install -*.class -*.out +*\#* *.o -*.gch +*.out *.su - -/dist/*/*/* -!/dist/*/*/PKGBUILD -!/dist/*/*/adjbacklight.install -*.gz -*.xz - -/adjbacklight.aux -/adjbacklight.cp -/adjbacklight.cps -/adjbacklight.fn -/adjbacklight.ky -/adjbacklight.log -/adjbacklight.pg -/adjbacklight.toc -/adjbacklight.tp -/adjbacklight.vr -/adjbacklight.op -/adjbacklight.ops -/adjbacklight.pgs -/adjbacklight.vrs - +/adjbacklight diff --git a/COPYING b/COPYING deleted file mode 100644 index a711bb0..0000000 --- a/COPYING +++ /dev/null @@ -1,16 +0,0 @@ -adjbacklight – Convenient method for adjusting the backlight on your portable computer - -Copyright © 2012, 2013, 2014, 2015 Mattias Andrée (maandree@member.fsf.org) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program. If not, see <http://www.gnu.org/licenses/>. @@ -1,674 +1,15 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 +ISC License - Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. +© 2012, 2013, 2014, 2015, 2017 Mattias Andrée <maandree@kth.se> - Preamble +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. We, the Free Software Foundation, use the -GNU General Public License for most of our software; it applies also to -any other work released this way by its authors. You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -them if you wish), that you receive source code or can get it if you -want it, that you can change the software or use pieces of it in new -free programs, and that you know you can do these things. - - To protect your rights, we need to prevent others from denying you -these rights or asking you to surrender the rights. Therefore, you have -certain responsibilities if you distribute copies of the software, or if -you modify it: responsibilities to respect the freedom of others. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must pass on to the recipients the same -freedoms that you received. You must make sure that they, too, receive -or can get the source code. And you must show them these terms so they -know their rights. - - Developers that use the GNU GPL protect your rights with two steps: -(1) assert copyright on the software, and (2) offer you this License -giving you legal permission to copy, distribute and/or modify it. - - For the developers' and authors' protection, the GPL clearly explains -that there is no warranty for this free software. For both users' and -authors' sake, the GPL requires that modified versions be marked as -changed, so that their problems will not be attributed erroneously to -authors of previous versions. - - Some devices are designed to deny users access to install or run -modified versions of the software inside them, although the manufacturer -can do so. This is fundamentally incompatible with the aim of -protecting users' freedom to change the software. The systematic -pattern of such abuse occurs in the area of products for individuals to -use, which is precisely where it is most unacceptable. Therefore, we -have designed this version of the GPL to prohibit the practice for those -products. If such problems arise substantially in other domains, we -stand ready to extend this provision to those domains in future versions -of the GPL, as needed to protect the freedom of users. - - Finally, every program is threatened constantly by software patents. -States should not allow patents to restrict development and use of -software on general-purpose computers, but in those that do, we wish to -avoid the special danger that patents applied to a free program could -make it effectively proprietary. To prevent this, the GPL assures that -patents cannot be used to render the program non-free. - - The precise terms and conditions for copying, distribution and -modification follow. - - TERMS AND CONDITIONS - - 0. Definitions. - - "This License" refers to version 3 of the GNU General Public License. - - "Copyright" also means copyright-like laws that apply to other kinds of -works, such as semiconductor masks. - - "The Program" refers to any copyrightable work licensed under this -License. Each licensee is addressed as "you". "Licensees" and -"recipients" may be individuals or organizations. - - To "modify" a work means to copy from or adapt all or part of the work -in a fashion requiring copyright permission, other than the making of an -exact copy. The resulting work is called a "modified version" of the -earlier work or a work "based on" the earlier work. - - A "covered work" means either the unmodified Program or a work based -on the Program. - - To "propagate" a work means to do anything with it that, without -permission, would make you directly or secondarily liable for -infringement under applicable copyright law, except executing it on a -computer or modifying a private copy. Propagation includes copying, -distribution (with or without modification), making available to the -public, and in some countries other activities as well. - - To "convey" a work means any kind of propagation that enables other -parties to make or receive copies. Mere interaction with a user through -a computer network, with no transfer of a copy, is not conveying. - - An interactive user interface displays "Appropriate Legal Notices" -to the extent that it includes a convenient and prominently visible -feature that (1) displays an appropriate copyright notice, and (2) -tells the user that there is no warranty for the work (except to the -extent that warranties are provided), that licensees may convey the -work under this License, and how to view a copy of this License. If -the interface presents a list of user commands or options, such as a -menu, a prominent item in the list meets this criterion. - - 1. Source Code. - - The "source code" for a work means the preferred form of the work -for making modifications to it. "Object code" means any non-source -form of a work. - - A "Standard Interface" means an interface that either is an official -standard defined by a recognized standards body, or, in the case of -interfaces specified for a particular programming language, one that -is widely used among developers working in that language. - - The "System Libraries" of an executable work include anything, other -than the work as a whole, that (a) is included in the normal form of -packaging a Major Component, but which is not part of that Major -Component, and (b) serves only to enable use of the work with that -Major Component, or to implement a Standard Interface for which an -implementation is available to the public in source code form. A -"Major Component", in this context, means a major essential component -(kernel, window system, and so on) of the specific operating system -(if any) on which the executable work runs, or a compiler used to -produce the work, or an object code interpreter used to run it. - - The "Corresponding Source" for a work in object code form means all -the source code needed to generate, install, and (for an executable -work) run the object code and to modify the work, including scripts to -control those activities. However, it does not include the work's -System Libraries, or general-purpose tools or generally available free -programs which are used unmodified in performing those activities but -which are not part of the work. For example, Corresponding Source -includes interface definition files associated with source files for -the work, and the source code for shared libraries and dynamically -linked subprograms that the work is specifically designed to require, -such as by intimate data communication or control flow between those -subprograms and other parts of the work. - - The Corresponding Source need not include anything that users -can regenerate automatically from other parts of the Corresponding -Source. - - The Corresponding Source for a work in source code form is that -same work. - - 2. Basic Permissions. - - All rights granted under this License are granted for the term of -copyright on the Program, and are irrevocable provided the stated -conditions are met. This License explicitly affirms your unlimited -permission to run the unmodified Program. The output from running a -covered work is covered by this License only if the output, given its -content, constitutes a covered work. This License acknowledges your -rights of fair use or other equivalent, as provided by copyright law. - - You may make, run and propagate covered works that you do not -convey, without conditions so long as your license otherwise remains -in force. You may convey covered works to others for the sole purpose -of having them make modifications exclusively for you, or provide you -with facilities for running those works, provided that you comply with -the terms of this License in conveying all material for which you do -not control copyright. Those thus making or running the covered works -for you must do so exclusively on your behalf, under your direction -and control, on terms that prohibit them from making any copies of -your copyrighted material outside their relationship with you. - - Conveying under any other circumstances is permitted solely under -the conditions stated below. Sublicensing is not allowed; section 10 -makes it unnecessary. - - 3. Protecting Users' Legal Rights From Anti-Circumvention Law. - - No covered work shall be deemed part of an effective technological -measure under any applicable law fulfilling obligations under article -11 of the WIPO copyright treaty adopted on 20 December 1996, or -similar laws prohibiting or restricting circumvention of such -measures. - - When you convey a covered work, you waive any legal power to forbid -circumvention of technological measures to the extent such circumvention -is effected by exercising rights under this License with respect to -the covered work, and you disclaim any intention to limit operation or -modification of the work as a means of enforcing, against the work's -users, your or third parties' legal rights to forbid circumvention of -technological measures. - - 4. Conveying Verbatim Copies. - - You may convey verbatim copies of the Program's source code as you -receive it, in any medium, provided that you conspicuously and -appropriately publish on each copy an appropriate copyright notice; -keep intact all notices stating that this License and any -non-permissive terms added in accord with section 7 apply to the code; -keep intact all notices of the absence of any warranty; and give all -recipients a copy of this License along with the Program. - - You may charge any price or no price for each copy that you convey, -and you may offer support or warranty protection for a fee. - - 5. Conveying Modified Source Versions. - - You may convey a work based on the Program, or the modifications to -produce it from the Program, in the form of source code under the -terms of section 4, provided that you also meet all of these conditions: - - a) The work must carry prominent notices stating that you modified - it, and giving a relevant date. - - b) The work must carry prominent notices stating that it is - released under this License and any conditions added under section - 7. This requirement modifies the requirement in section 4 to - "keep intact all notices". - - c) You must license the entire work, as a whole, under this - License to anyone who comes into possession of a copy. This - License will therefore apply, along with any applicable section 7 - additional terms, to the whole of the work, and all its parts, - regardless of how they are packaged. This License gives no - permission to license the work in any other way, but it does not - invalidate such permission if you have separately received it. - - d) If the work has interactive user interfaces, each must display - Appropriate Legal Notices; however, if the Program has interactive - interfaces that do not display Appropriate Legal Notices, your - work need not make them do so. - - A compilation of a covered work with other separate and independent -works, which are not by their nature extensions of the covered work, -and which are not combined with it such as to form a larger program, -in or on a volume of a storage or distribution medium, is called an -"aggregate" if the compilation and its resulting copyright are not -used to limit the access or legal rights of the compilation's users -beyond what the individual works permit. Inclusion of a covered work -in an aggregate does not cause this License to apply to the other -parts of the aggregate. - - 6. Conveying Non-Source Forms. - - You may convey a covered work in object code form under the terms -of sections 4 and 5, provided that you also convey the -machine-readable Corresponding Source under the terms of this License, -in one of these ways: - - a) Convey the object code in, or embodied in, a physical product - (including a physical distribution medium), accompanied by the - Corresponding Source fixed on a durable physical medium - customarily used for software interchange. - - b) Convey the object code in, or embodied in, a physical product - (including a physical distribution medium), accompanied by a - written offer, valid for at least three years and valid for as - long as you offer spare parts or customer support for that product - model, to give anyone who possesses the object code either (1) a - copy of the Corresponding Source for all the software in the - product that is covered by this License, on a durable physical - medium customarily used for software interchange, for a price no - more than your reasonable cost of physically performing this - conveying of source, or (2) access to copy the - Corresponding Source from a network server at no charge. - - c) Convey individual copies of the object code with a copy of the - written offer to provide the Corresponding Source. This - alternative is allowed only occasionally and noncommercially, and - only if you received the object code with such an offer, in accord - with subsection 6b. - - d) Convey the object code by offering access from a designated - place (gratis or for a charge), and offer equivalent access to the - Corresponding Source in the same way through the same place at no - further charge. You need not require recipients to copy the - Corresponding Source along with the object code. If the place to - copy the object code is a network server, the Corresponding Source - may be on a different server (operated by you or a third party) - that supports equivalent copying facilities, provided you maintain - clear directions next to the object code saying where to find the - Corresponding Source. Regardless of what server hosts the - Corresponding Source, you remain obligated to ensure that it is - available for as long as needed to satisfy these requirements. - - e) Convey the object code using peer-to-peer transmission, provided - you inform other peers where the object code and Corresponding - Source of the work are being offered to the general public at no - charge under subsection 6d. - - A separable portion of the object code, whose source code is excluded -from the Corresponding Source as a System Library, need not be -included in conveying the object code work. - - A "User Product" is either (1) a "consumer product", which means any -tangible personal property which is normally used for personal, family, -or household purposes, or (2) anything designed or sold for incorporation -into a dwelling. In determining whether a product is a consumer product, -doubtful cases shall be resolved in favor of coverage. For a particular -product received by a particular user, "normally used" refers to a -typical or common use of that class of product, regardless of the status -of the particular user or of the way in which the particular user -actually uses, or expects or is expected to use, the product. A product -is a consumer product regardless of whether the product has substantial -commercial, industrial or non-consumer uses, unless such uses represent -the only significant mode of use of the product. - - "Installation Information" for a User Product means any methods, -procedures, authorization keys, or other information required to install -and execute modified versions of a covered work in that User Product from -a modified version of its Corresponding Source. The information must -suffice to ensure that the continued functioning of the modified object -code is in no case prevented or interfered with solely because -modification has been made. - - If you convey an object code work under this section in, or with, or -specifically for use in, a User Product, and the conveying occurs as -part of a transaction in which the right of possession and use of the -User Product is transferred to the recipient in perpetuity or for a -fixed term (regardless of how the transaction is characterized), the -Corresponding Source conveyed under this section must be accompanied -by the Installation Information. But this requirement does not apply -if neither you nor any third party retains the ability to install -modified object code on the User Product (for example, the work has -been installed in ROM). - - The requirement to provide Installation Information does not include a -requirement to continue to provide support service, warranty, or updates -for a work that has been modified or installed by the recipient, or for -the User Product in which it has been modified or installed. Access to a -network may be denied when the modification itself materially and -adversely affects the operation of the network or violates the rules and -protocols for communication across the network. - - Corresponding Source conveyed, and Installation Information provided, -in accord with this section must be in a format that is publicly -documented (and with an implementation available to the public in -source code form), and must require no special password or key for -unpacking, reading or copying. - - 7. Additional Terms. - - "Additional permissions" are terms that supplement the terms of this -License by making exceptions from one or more of its conditions. -Additional permissions that are applicable to the entire Program shall -be treated as though they were included in this License, to the extent -that they are valid under applicable law. If additional permissions -apply only to part of the Program, that part may be used separately -under those permissions, but the entire Program remains governed by -this License without regard to the additional permissions. - - When you convey a copy of a covered work, you may at your option -remove any additional permissions from that copy, or from any part of -it. (Additional permissions may be written to require their own -removal in certain cases when you modify the work.) You may place -additional permissions on material, added by you to a covered work, -for which you have or can give appropriate copyright permission. - - Notwithstanding any other provision of this License, for material you -add to a covered work, you may (if authorized by the copyright holders of -that material) supplement the terms of this License with terms: - - a) Disclaiming warranty or limiting liability differently from the - terms of sections 15 and 16 of this License; or - - b) Requiring preservation of specified reasonable legal notices or - author attributions in that material or in the Appropriate Legal - Notices displayed by works containing it; or - - c) Prohibiting misrepresentation of the origin of that material, or - requiring that modified versions of such material be marked in - reasonable ways as different from the original version; or - - d) Limiting the use for publicity purposes of names of licensors or - authors of the material; or - - e) Declining to grant rights under trademark law for use of some - trade names, trademarks, or service marks; or - - f) Requiring indemnification of licensors and authors of that - material by anyone who conveys the material (or modified versions of - it) with contractual assumptions of liability to the recipient, for - any liability that these contractual assumptions directly impose on - those licensors and authors. - - All other non-permissive additional terms are considered "further -restrictions" within the meaning of section 10. If the Program as you -received it, or any part of it, contains a notice stating that it is -governed by this License along with a term that is a further -restriction, you may remove that term. If a license document contains -a further restriction but permits relicensing or conveying under this -License, you may add to a covered work material governed by the terms -of that license document, provided that the further restriction does -not survive such relicensing or conveying. - - If you add terms to a covered work in accord with this section, you -must place, in the relevant source files, a statement of the -additional terms that apply to those files, or a notice indicating -where to find the applicable terms. - - Additional terms, permissive or non-permissive, may be stated in the -form of a separately written license, or stated as exceptions; -the above requirements apply either way. - - 8. Termination. - - You may not propagate or modify a covered work except as expressly -provided under this License. Any attempt otherwise to propagate or -modify it is void, and will automatically terminate your rights under -this License (including any patent licenses granted under the third -paragraph of section 11). - - However, if you cease all violation of this License, then your -license from a particular copyright holder is reinstated (a) -provisionally, unless and until the copyright holder explicitly and -finally terminates your license, and (b) permanently, if the copyright -holder fails to notify you of the violation by some reasonable means -prior to 60 days after the cessation. - - Moreover, your license from a particular copyright holder is -reinstated permanently if the copyright holder notifies you of the -violation by some reasonable means, this is the first time you have -received notice of violation of this License (for any work) from that -copyright holder, and you cure the violation prior to 30 days after -your receipt of the notice. - - Termination of your rights under this section does not terminate the -licenses of parties who have received copies or rights from you under -this License. If your rights have been terminated and not permanently -reinstated, you do not qualify to receive new licenses for the same -material under section 10. - - 9. Acceptance Not Required for Having Copies. - - You are not required to accept this License in order to receive or -run a copy of the Program. Ancillary propagation of a covered work -occurring solely as a consequence of using peer-to-peer transmission -to receive a copy likewise does not require acceptance. However, -nothing other than this License grants you permission to propagate or -modify any covered work. These actions infringe copyright if you do -not accept this License. Therefore, by modifying or propagating a -covered work, you indicate your acceptance of this License to do so. - - 10. Automatic Licensing of Downstream Recipients. - - Each time you convey a covered work, the recipient automatically -receives a license from the original licensors, to run, modify and -propagate that work, subject to this License. You are not responsible -for enforcing compliance by third parties with this License. - - An "entity transaction" is a transaction transferring control of an -organization, or substantially all assets of one, or subdividing an -organization, or merging organizations. If propagation of a covered -work results from an entity transaction, each party to that -transaction who receives a copy of the work also receives whatever -licenses to the work the party's predecessor in interest had or could -give under the previous paragraph, plus a right to possession of the -Corresponding Source of the work from the predecessor in interest, if -the predecessor has it or can get it with reasonable efforts. - - You may not impose any further restrictions on the exercise of the -rights granted or affirmed under this License. For example, you may -not impose a license fee, royalty, or other charge for exercise of -rights granted under this License, and you may not initiate litigation -(including a cross-claim or counterclaim in a lawsuit) alleging that -any patent claim is infringed by making, using, selling, offering for -sale, or importing the Program or any portion of it. - - 11. Patents. - - A "contributor" is a copyright holder who authorizes use under this -License of the Program or a work on which the Program is based. The -work thus licensed is called the contributor's "contributor version". - - A contributor's "essential patent claims" are all patent claims -owned or controlled by the contributor, whether already acquired or -hereafter acquired, that would be infringed by some manner, permitted -by this License, of making, using, or selling its contributor version, -but do not include claims that would be infringed only as a -consequence of further modification of the contributor version. For -purposes of this definition, "control" includes the right to grant -patent sublicenses in a manner consistent with the requirements of -this License. - - Each contributor grants you a non-exclusive, worldwide, royalty-free -patent license under the contributor's essential patent claims, to -make, use, sell, offer for sale, import and otherwise run, modify and -propagate the contents of its contributor version. - - In the following three paragraphs, a "patent license" is any express -agreement or commitment, however denominated, not to enforce a patent -(such as an express permission to practice a patent or covenant not to -sue for patent infringement). To "grant" such a patent license to a -party means to make such an agreement or commitment not to enforce a -patent against the party. - - If you convey a covered work, knowingly relying on a patent license, -and the Corresponding Source of the work is not available for anyone -to copy, free of charge and under the terms of this License, through a -publicly available network server or other readily accessible means, -then you must either (1) cause the Corresponding Source to be so -available, or (2) arrange to deprive yourself of the benefit of the -patent license for this particular work, or (3) arrange, in a manner -consistent with the requirements of this License, to extend the patent -license to downstream recipients. "Knowingly relying" means you have -actual knowledge that, but for the patent license, your conveying the -covered work in a country, or your recipient's use of the covered work -in a country, would infringe one or more identifiable patents in that -country that you have reason to believe are valid. - - If, pursuant to or in connection with a single transaction or -arrangement, you convey, or propagate by procuring conveyance of, a -covered work, and grant a patent license to some of the parties -receiving the covered work authorizing them to use, propagate, modify -or convey a specific copy of the covered work, then the patent license -you grant is automatically extended to all recipients of the covered -work and works based on it. - - A patent license is "discriminatory" if it does not include within -the scope of its coverage, prohibits the exercise of, or is -conditioned on the non-exercise of one or more of the rights that are -specifically granted under this License. You may not convey a covered -work if you are a party to an arrangement with a third party that is -in the business of distributing software, under which you make payment -to the third party based on the extent of your activity of conveying -the work, and under which the third party grants, to any of the -parties who would receive the covered work from you, a discriminatory -patent license (a) in connection with copies of the covered work -conveyed by you (or copies made from those copies), or (b) primarily -for and in connection with specific products or compilations that -contain the covered work, unless you entered into that arrangement, -or that patent license was granted, prior to 28 March 2007. - - Nothing in this License shall be construed as excluding or limiting -any implied license or other defenses to infringement that may -otherwise be available to you under applicable patent law. - - 12. No Surrender of Others' Freedom. - - If conditions are imposed on you (whether by court order, agreement or -otherwise) that contradict the conditions of this License, they do not -excuse you from the conditions of this License. If you cannot convey a -covered work so as to satisfy simultaneously your obligations under this -License and any other pertinent obligations, then as a consequence you may -not convey it at all. For example, if you agree to terms that obligate you -to collect a royalty for further conveying from those to whom you convey -the Program, the only way you could satisfy both those terms and this -License would be to refrain entirely from conveying the Program. - - 13. Use with the GNU Affero General Public License. - - Notwithstanding any other provision of this License, you have -permission to link or combine any covered work with a work licensed -under version 3 of the GNU Affero General Public License into a single -combined work, and to convey the resulting work. The terms of this -License will continue to apply to the part which is the covered work, -but the special requirements of the GNU Affero General Public License, -section 13, concerning interaction through a network will apply to the -combination as such. - - 14. Revised Versions of this License. - - The Free Software Foundation may publish revised and/or new versions of -the GNU General Public License from time to time. Such new versions will -be similar in spirit to the present version, but may differ in detail to -address new problems or concerns. - - Each version is given a distinguishing version number. If the -Program specifies that a certain numbered version of the GNU General -Public License "or any later version" applies to it, you have the -option of following the terms and conditions either of that numbered -version or of any later version published by the Free Software -Foundation. If the Program does not specify a version number of the -GNU General Public License, you may choose any version ever published -by the Free Software Foundation. - - If the Program specifies that a proxy can decide which future -versions of the GNU General Public License can be used, that proxy's -public statement of acceptance of a version permanently authorizes you -to choose that version for the Program. - - Later license versions may give you additional or different -permissions. However, no additional obligations are imposed on any -author or copyright holder as a result of your choosing to follow a -later version. - - 15. Disclaimer of Warranty. - - THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY -APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT -HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY -OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, -THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM -IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF -ALL NECESSARY SERVICING, REPAIR OR CORRECTION. - - 16. Limitation of Liability. - - IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS -THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY -GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE -USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF -DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD -PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), -EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF -SUCH DAMAGES. - - 17. Interpretation of Sections 15 and 16. - - If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. - - END OF TERMS AND CONDITIONS - - How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these terms. - - To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -state the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - <one line to give the program's name and a brief idea of what it does.> - Copyright (C) <year> <name of author> - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - <program> Copyright (C) <year> <name of author> - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -<http://www.gnu.org/licenses/>. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -<http://www.gnu.org/philosophy/why-not-lgpl.html>. +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. @@ -1,212 +1,32 @@ -# Copyright © 2012, 2013, 2014 Mattias Andrée (maandree@member.fsf.org) -# -# Copying and distribution of this file, with or without modification, -# are permitted in any medium without royalty provided the copyright -# notice and this notice are preserved. This file is offered as-is, -# without any warranty. -# -# [GNU All Permissive License] +.POSIX: -PREFIX = /usr -BIN = /bin -BINDIR = $(PREFIX)$(BIN) -DATA = /share -DATADIR = $(PREFIX)$(DATA) -DOCDIR = $(DATADIR)/doc -INFODIR = $(DATADIR)/info -MANDIR = $(DATADIR)/man -MAN1DIR = $(MANDIR)/man1 -LICENSEDIR = $(DATADIR)/licenses +CONFIGFILE = config.mk +include $(CONFIGFILE) +all: adjbacklight -PKGNAME = adjbacklight -COMMAND = adjbacklight +adjbacklight.o: adjbacklight.c arg.h + $(CC) -c -o adjbacklight.o adjbacklight.c $(CCFLAGS) $(CPPFLAGS) +adjbacklight: adjbacklight.o + $(CC) -o adjbacklight adjbacklight.o $(LDFLAGS) -OPTIMISATION = -Ofast -# -Os optimise for small size -# -Ofast optimise for performance -# -Og optimise for debugging -# -g include debugging data (use together with -Og or alone) +install: adjbacklight + mkdir -p -- "$(DESTDIR)$(PREFIX)/bin" + mkdir -p -- "$(DESTDIR)$(MANPREFIX)/man1" + mkdir -p -- "$(DESTDIR)$(PREFIX)/share/licenses/adjbacklight" + cp -- adjbacklight "$(DESTDIR)$(PREFIX)/bin" + cp -- adjbacklight.1 "$(DESTDIR)$(MANPREFIX)/man1" + cp -- LICENSE "$(DESTDIR)$(PREFIX)/share/licenses/adjbacklight" + chmod -- 4755 "$(DESTDIR)$(PREFIX)/bin/adjbacklight" -WARN = -Wall -Wextra -Wdouble-promotion -Wformat=2 -Winit-self -Wmissing-include-dirs \ - -Wtrampolines -Wfloat-equal -Wshadow -Wmissing-prototypes -Wmissing-declarations \ - -Wredundant-decls -Wnested-externs -Winline -Wno-variadic-macros -Wsync-nand \ - -Wunsafe-loop-optimizations -Wcast-align -Wstrict-overflow -Wdeclaration-after-statement \ - -Wundef -Wbad-function-cast -Wcast-qual -Wwrite-strings -Wlogical-op -Waggregate-return \ - -Wstrict-prototypes -Wold-style-definition -Wpacked -Wvector-operation-performance \ - -Wunsuffixed-float-constants -Wsuggest-attribute=const -Wsuggest-attribute=noreturn \ - -Wsuggest-attribute=pure -Wsuggest-attribute=format -Wnormalized=nfkc -Wconversion \ - -fstrict-aliasing -fstrict-overflow -fipa-pure-const -ftree-vrp -fstack-usage \ - -funsafe-loop-optimizations -# excluded: -pedantic - - - -# compile the package -.PHONY: default -default: code info shell - -.PHONY: all -all: code doc shell - -.PHONY: code -code: bin/adjbacklight - -bin/adjbacklight: src/adjbacklight.c - @mkdir -p bin - $(CC) $(OPTIMISATION) $(WARN) -std=gnu90 -o "$@" "$<" - -.PHONY: code -doc: info pdf dvi ps - -.PHONY: info -info: bin/adjbacklight.info -bin/%.info: doc/info/%.texinfo - @mkdir -p bin - $(MAKEINFO) "$<" - mv $*.info $@ - -.PHONY: pdf -pdf: bin/adjbacklight.pdf -bin/%.pdf: doc/info/%.texinfo - @! test -d obj/pdf || rm -rf obj/pdf - @mkdir -p bin obj/pdf - cd obj/pdf && texi2pdf ../../"$<" < /dev/null - mv obj/pdf/$*.pdf $@ - -.PHONY: dvi -dvi: bin/adjbacklight.dvi -bin/%.dvi: doc/info/%.texinfo - @! test -d obj/dvi || rm -rf obj/dvi - @mkdir -p bin obj/dvi - cd obj/dvi && $(TEXI2DVI) ../../"$<" < /dev/null - mv obj/dvi/$*.dvi $@ - -.PHONY: ps -ps: bin/adjbacklight.ps -bin/%.ps: doc/info/%.texinfo - @! test -d obj/ps || rm -rf obj/ps - @mkdir -p bin obj/ps - cd obj/ps && texi2pdf --ps ../../"$<" < /dev/null - mv obj/ps/$*.ps $@ - -.PHONY: shell -shell: bash fish zsh - -.PHONY: bash -bash: bin/adjbacklight.bash-completion - -.PHONY: fish -fish: bin/adjbacklight.fish-completion - -.PHONY: zsh -zsh: bin/adjbacklight.zsh-completion - -obj/adjbacklight.auto-completion: src/adjbacklight.auto-completion - @mkdir -p obj - cp "$<" "$@" - sed -i 's/^(adjbacklight$$/($(COMMAND)/' "$@" - -bin/adjbacklight.%sh-completion: obj/adjbacklight.auto-completion - @mkdir -p bin - auto-auto-complete "$*sh" --output "$@" --source "$<" - - -# install to system -.PHONY: install -install: install-base install-info install-man install-shell - -.PHONY: install-all -install-all: install-base install-doc install-shell - -.PHONY: install-base -install-base: install-cmd install-copyright - -.PHONY: install-cmd -install-cmd: bin/adjbacklight - install -d -- "$(DESTDIR)$(BINDIR)" - install -m4755 -- bin/adjbacklight "$(DESTDIR)$(BINDIR)/$(COMMAND)" - -.PHONY: install-copyright -install-copyright: install-copying install-license - -.PHONY: install-copying -install-copying: - install -dm755 -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - install -m644 -- COPYING "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - -.PHONY: install-license -install-license: - install -dm755 -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - install -m644 -- LICENSE "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - -.PHONY: install-doc -install-doc: install-info install-pdf install-dvi install-ps install-man - -.PHONY: install-info -install-info: bin/adjbacklight.info - install -dm755 -- "$(DESTDIR)$(INFODIR)" - install -m644 -- "$<" "$(DESTDIR)$(INFODIR)/$(PKGNAME).info" - -.PHONY: install-pdf -install-pdf: bin/adjbacklight.pdf - install -dm755 -- "$(DESTDIR)$(DOCDIR)" - install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf" - -.PHONY: install-dvi -install-dvi: bin/adjbacklight.dvi - install -dm755 -- "$(DESTDIR)$(DOCDIR)" - install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi" - -.PHONY: install-ps -install-ps: bin/adjbacklight.ps - install -dm755 -- "$(DESTDIR)$(DOCDIR)" - install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps" - -.PHONY: install-man -install-man: doc/man/adjbacklight.1 - install -dm755 -- "$(DESTDIR)$(MAN1DIR)" - install -m644 "$<" -- "$(DESTDIR)$(MAN1DIR)/$(COMMAND).1" - -.PHONY: install-shell -install-shell: install-bash install-fish install-zsh - -.PHONY: install-bash -install-bash: bin/adjbacklight.bash-completion - install -dm755 -- "$(DESTDIR)$(DATADIR)/bash-completion/completions" - install -m644 "$<" -- "$(DESTDIR)$(DATADIR)/bash-completion/completions/$(COMMAND)" - -.PHONY: install-fish -install-fish: bin/adjbacklight.fish-completion - install -dm755 -- "$(DESTDIR)$(DATADIR)/fish/completions" - install -m644 "$<" -- "$(DESTDIR)$(DATADIR)/fish/completions/$(COMMAND).fish" - -.PHONY: install-zsh -install-zsh: bin/adjbacklight.zsh-completion - install -dm755 -- "$(DESTDIR)$(DATADIR)/zsh/site-functions" - install -m644 "$<" -- "$(DESTDIR)$(DATADIR)/zsh/site-functions/_$(COMMAND)" - - -# remove files created by `install` -.PHONY: uninstall uninstall: - -rm -- "$(DESTDIR)$(BINDIR)/$(COMMAND)" - -rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/COPYING" - -rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/LICENSE" - -rmdir -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - -rm -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info" - -rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf" - -rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi" - -rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps" - -rm -- "$(DESTDIR)$(DATADIR)/bash-completion/completions/$(COMMAND)" - -rm -- "$(DESTDIR)$(DATADIR)/fish/completions/$(COMMAND).fish" - -rm -- "$(DESTDIR)$(DATADIR)/zsh/site-functions/_$(COMMAND)" - -rm -- "$(DESTDIR)$(MAN1)/$(COMMAND).1" - + -rm -- "$(DESTDIR)$(PREFIX)/bin/adjbacklight" + -rm -- "$(DESTDIR)$(MANPREFIX)/man1/adjbacklight.1" + -rm -- "$(DESTDIR)$(PREFIX)/share/licenses/adjbacklight/LICENSE" + -rmdir -- "$(DESTDIR)$(PREFIX)/share/licenses/adjbacklight" -# remove files created by `all` -.PHONY: clean clean: - -rm -r bin obj + -rm -- adjbacklight *.o +.PHONY: all install uninstall clean @@ -2,7 +2,7 @@ NAME adjbacklight - Convenient method for adjusting the backlight on your portable computer SYNOPSIS - adjbacklight (-c | -w | [-g | -s LEVEL | LEVEL] [-a | DEVICE...]) + adjbacklight [-g | -s [+|-]level[%|%%]] [-a | device ...] DESCRIPTION adjbacklight can be used to fetch or set the backlight @@ -22,36 +22,34 @@ DESCRIPTION be used non-interactively with hotkeys set up in xbindkeys(1). OPTIONS - -c - --copyright - --copying Display copyright information. + -a Run for all devices, including ACPI devices. - -w - --warranty Display warranty disclaimer. + -g Get average brightness on devices. - -a - --all Run for all devices, including ACPI devices. + -s LEVEL Set brightness on devices by actual value. - -g - --get Get average brightness on devices. + -s +LEVEL Increase brightness on devices by actual value. - -s - --set LEVEL[%] Set brightness on devices. + -s -LEVEL Decrease brightness on devices by actual value. - +LEVEL Increase brightness on devices by actual value. - -LEVEL Decrease brightness on devices by actual value. - =LEVEL Set brightness on devices by actual value. + -s LEVEL% Set brightness on devices by percentage-points. - +LEVEL% Increase brightness on devices by percentage-points. - -LEVEL% Decrease brightness on devices by percentage-points. - =LEVEL% Set brightness on devices by percentage-points. + -s +LEVEL% Increase brightness on devices by percentage-points. - +LEVEL%% Increase brightness on devices by percentage. - -LEVEL%% Decrease brightness on devices by percentage. - =LEVEL%% Set brightness on devices by percentage. + -s -LEVEL% Decrease brightness on devices by percentage-points. -SEE ALSO - xbindkeys(1), xbacklight(1), sys_class_backlight(4) + -s LEVEL%% Set brightness on devices by percentage. + + -s +LEVEL%% Increase brightness on devices by percentage. + + -s -LEVEL%% Decrease brightness on devices by percentage. - Full documentation available locally via: info '(adjbacklight)' +KEYBOARD + left, down Darken the screen. + right, up Brighten the screen. + + q, enter, C-d Continue to next controller, or if at last, quit. + +SEE ALSO + xbindkeys(1), xbacklight(1) diff --git a/doc/man/adjbacklight.1 b/adjbacklight.1 index 81db62d..3596e5d 100644 --- a/doc/man/adjbacklight.1 +++ b/adjbacklight.1 @@ -3,22 +3,20 @@ adjbacklight - Convenient method for adjusting the backlight on your portable computer .SH SYNOPSIS .B adjbacklight -(-c | -w | [-g | -s -.IR LEVEL -| -.IR LEVEL ] +[-g | -s +.RB [ + | - ]\fIlevel\fP[ % | %% ]] [-a | -.IR DEVICE ...]) +.IR device \ ...] .SH DESCRIPTION .B adjbacklight can be used to fetch or set the backlight non-interactively. If these feature is not used, it starts a interactive user interface in the terminal. -.PP +.P .B adjbacklight installs with the set-uid bit set, to enable any user to change the backlight on the computer. -.PP +.P .B adjbacklight was originally designed for small netbooks that are not running .BR X . @@ -39,66 +37,51 @@ non-interactively with hotkeys set up in .BR xbindkeys (1). .SH OPTIONS .TP -.BR \-c ,\ \-\-copyright ,\ \-\-copying -Display copyright information. -.TP -.BR \-w, \ \-\-warranty -Display warranty disclaimer. -.TP -.BR \-a, \ \-\-all +.BR \-a Run for all devices, including ACPI devices. .TP -.BR \-g, \ \-\-get +.BR \-g Get average brightness on devices. .TP -.BR \-s, \ \-\-set \ \fILEVEL\fP[%] -Set brightness on devices. -.PP +.BR -s \ \fIlevel\fP +Set brightness on devices by actual value. .TP -.BR \+ \fILEVEL\fP +.BR -s\ + \fIlevel\fP Increase brightness on devices by actual value. .TP -.BR \- \fILEVEL\fP +.BR -s\ - \fIlevel\fP Decrease brightness on devices by actual value. .TP -.BR \= \fILEVEL\fP -Set brightness on devices by actual value. -.br +.BR -s \ \fIlevel\fP% +Set brightness on devices by percentage-points. .TP -.BR \+ \fILEVEL\fP% +.BR -s\ + \fIlevel\fP% Increase brightness on devices by percentage-points. .TP -.BR \- \fILEVEL\fP% +.BR -s\ - \fIlevel\fP% Decrease brightness on devices by percentage-points. .TP -.BR \= \fILEVEL\fP% -Set brightness on devices by percentage-points. -.br +.BR -s \ \fIlevel\fP%% +Set brightness on devices by percentage. .TP -.BR \+ \fILEVEL\fP%% +.BR -s\ + \fIlevel\fP%% Increase brightness on devices by percentage. .TP -.BR \- \fILEVEL\fP%% +.BR -s\ - \fIlevel\fP%% Decrease brightness on devices by percentage. +.SH KEYBOARD .TP -.BR \= \fILEVEL\fP%% -Set brightness on devices by percentage. +.BR left ,\ down +Darken the screen. +.TP +.BR right ,\ up +Brighten the screen. +.TP +.BR q ,\ enter ,\ C-d +Continue to next controller, or if at last, quit. .SH "SEE ALSO" .BR xbindkeys (1), .BR xbacklight (1) -.PP -Full documentation available locally via: info \(aq(adjbacklight)\(aq .SH AUTHORS -Principal author, Mattias Andrée. See the COPYING file for the full -list of authors. -.SH LICENSE -Copyright \(co 2012, 2013, 2014, 2015 Mattias Andrée -.br -License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. -.br -This is free software: you are free to change and redistribute it. -.br -There is NO WARRANTY, to the extent permitted by law. -.SH BUGS -Please report bugs to https://github.com/maandree/adjbacklight/issues or to -maandree@member.fsf.org +Mattias Andrée +.RI < maandree@kth.se > diff --git a/adjbacklight.c b/adjbacklight.c new file mode 100644 index 0000000..9fe68c1 --- /dev/null +++ b/adjbacklight.c @@ -0,0 +1,425 @@ +/* See LICENSE file for copyright and license details. */ +#include <sys/ioctl.h> +#include <sys/wait.h> +#include <alloca.h> +#include <ctype.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <grp.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <termios.h> +#include <unistd.h> + +#include "arg.h" + + +#ifndef BACKLIGHT_DIR +# define BACKLIGHT_DIR "/sys/class/backlight" +#endif + + + +char *argv0; +static double brightness = 0; +static int nbrightness = 0; +static int cols = 80; +static char *space; +static char *line; + + + +static void +usage(void) +{ + fprintf(stderr, "usage: %s [-g | -s [+|-]level[%%|%%%%]] [-a | device ...]\n", argv0); + exit(1); +} + + +static long int +readfile(const char *path) +{ + int fd; + char buf[64]; + ssize_t i, n; + long int value = 0; + + fd = open(path, O_RDONLY); + if (fd < 0) + return -1; + + while ((n = read(fd, buf, sizeof(buf))) > 0) { + for (i = 0; i < n; i++) { + if (isdigit(buf[i])) + value = value * 10 + (buf[i] - '0'); + else if (buf[i] != '\n') + goto out; + } + } + +out: + close(fd); + return n ? -1 : value; +} + + +static double +getbrightness(const char *device, long int *out_cur, long int *out_max) +{ + size_t n = sizeof("//max_brightness") - 1; + char *path; + long int max, cur; + + n += strlen(BACKLIGHT_DIR); + n += strlen(device); + path = alloca(n + 1); + + if (sprintf(path, "%s/%s/max_brightness", BACKLIGHT_DIR, device) != (int)n) + abort(); + max = readfile(path); + if (max < 1) + return -1; + if (out_max) + *out_max = max; + + if (sprintf(path, "%s/%s/brightness", BACKLIGHT_DIR, device) != (int)n - 4) + abort(); + cur = readfile(path); + if (cur < 0) + return -1; + if (out_cur) + *out_cur = cur; + + return (double)cur / (double)max; +} + + +static int +setbrightness(const char *device, long int value) +{ + size_t p = 0, n = sizeof("//brightness") - 1; + char *path, buf[128]; + ssize_t r = 0; + int fd; + + n += strlen(BACKLIGHT_DIR); + n += strlen(device); + path = alloca(n + 1); + + if (sprintf(path, "%s/%s/brightness", BACKLIGHT_DIR, device) != (int)n) + abort(); + if (sprintf(buf, "%li\n", value) < 0) + abort(); + + fd = open(path, O_WRONLY); + if (fd < 0) + return -1; + + for (n = strlen(buf); p < n; p += (size_t)r) + if ((r = write(fd, &buf[p], n - p)) < 0) + break; + + close(fd); + return r < 0 ? -1 : 0; +} + + +static int +adjbrightness(const char *device, double pcur, long int cur, long int max, double adj, int inc, const char *suf) +{ + switch (strlen(suf)) { + case 2: + pcur = adj * pcur / 100 + pcur * inc; + cur = (long int)(pcur * (double)max + 0.5); + break; + case 1: + pcur = adj / 100 + pcur * inc; + cur = (long int)(pcur * (double)max + 0.5); + break; + case 0: + cur = (long int)adj + cur * inc; + break; + default: + abort(); + } + + cur = cur < 0 ? 0 : cur < max ? cur : max; + return setbrightness(device, cur); +} + + +static void +bars(long int max, long int init, long int cur) +{ + long int mid = (long int)((double)cur * (double)(cols - 2) / (double)max + 0.5); + + printf("\033[%iD\033[6A", cols); + printf("\033[2K┌%s┐\n", line); + space[mid] = '\0'; + printf("\033[2K│\033[47m%s\033[49m%s│\n", space, &space[mid + 1]); + space[mid] = ' '; + printf("\033[2K└%s┘\n", line); + printf("\033[2KMaximum brightness: %li\n", max); + printf("\033[2KInitial brightness: %li\n", init); + printf("\033[2KCurrent brightness: %li\n", cur); + + fflush(stdout); +} + + +static void +interactive(const char *device, long int cur, long int max) +{ + long int step, init; + int c; + + step = max / 200; + step = step ? step : 1; + init = cur; + + printf("\n\n\n\n\n\n"); + bars(max, init, cur); + while ((c = getchar()) != -1) { + switch (c) { + case 'q': + case '\n': + case 4: + printf("\n"); + return; + case 'A': + case 'C': + cur += step << 1; + /* fall through */ + case 'B': + case 'D': + cur -= step; + cur = cur < 0 ? 0 : cur < max ? cur : max; + adjbrightness(device, 0, 0, max, (double)cur, 0, ""); + bars(max, init, cur); + } + } +} + + +static void +handle_device(const char *device, int get, int set, double adj, int inc, const char *suf) +{ + double value; + long int cur, max; + + value = getbrightness(device, &cur, &max); + + if (get) { + if (value >= 0) { + brightness += value; + nbrightness++; + } + } else if (set) { + adjbrightness(device, value, cur, max, adj, inc, suf); + } else { + interactive(device, cur, max); + } +} + + +int +main(int argc, char *argv[]) +{ + int all = 0; + int get = 0; + char* set = NULL; + char set_prefix = '='; + double set_value = 0; + char* set_suffix = NULL; + struct winsize win; + struct termios saved_stty; + struct termios stty; + pid_t pid = -1; + DIR *dir; + struct dirent *ent; + int any = 0; + + ARGBEGIN { + case 'a': + all = 1; + break; + case 'g': + get = 1; + break; + case 's': + set = EARGF(usage()); + break; + default: + usage(); + } ARGEND; + + if ((get && set) || (argc && all)) + usage(); + + /* Parse -s argument */ + if (set) { + if (*set == '+' || *set == '-') { + set_prefix = *set; + set++; + } + if (!isdigit(*set) && *set != '.') + usage(); + errno = 0; + set_value = strtod(set, &set_suffix); + if (errno || set_value < 0) { + fprintf(stderr, "%s: strtod %s: %s\n", argv0, set, strerror(errno)); + return 1; + } + if (*set_suffix && strcmp(set_suffix, "%") && strcmp(set_suffix, "%%")) + usage(); + if (set_prefix == '-') { + set_value = -set_value; + set_prefix = '+'; + } + } + + /* Check permissions (important because the program is installed with set-uid) */ + if (getuid()) { + struct group *videogrp = getgrnam("video"); + if (!videogrp && errno && errno != ENOENT && errno != ESRCH && errno != EPERM) { + /* Note, glibc sets errno to EIO if the group does not exist, + * this is the not the specified behavour by either POSIX or + * glibc, and it would be a security issue to treat it as OK. + * Additionally, EBADF is not treated as OK. */ + fprintf(stderr, "%s: getgrnam video: %s\n", argv0, strerror(errno)); + return 1; + } else if (videogrp) { + long ngroups_max = sysconf(_SC_NGROUPS_MAX) + 1; + gid_t *groups; + int ngroups; + if (ngroups_max < 0 || ngroups_max > INT_MAX - 1) { + fprintf(stderr, "%s: sysconf _SC_NGROUPS_MAX: %s\n", argv0, strerror(errno)); + return 1; + } + groups = alloca((size_t)ngroups_max * sizeof(*groups)); + ngroups = getgroups((int)ngroups_max, groups); + if (ngroups < 0) { + fprintf(stderr, "%s: getgroups: %s\n", argv0, strerror(errno)); + return 1; + } + while (ngroups--) + if (groups[ngroups] == videogrp->gr_gid) + break; + if (ngroups < 0) { + fprintf(stderr, "%s: only root and members of the group 'video' may run this command\n", argv0); + return 1; + } + } + } + + if (!get && !set) { + int i; + printf("\n\n"); + printf("If the program is abnormally aborted the may be some residual\n"); + printf("effects on the terminal. the following commands should reset it:\n"); + printf("\n"); + printf(" stty sane\n"); + printf(" printf '\\ec'\n"); + printf("\n"); + printf("\n\n\n\n"); + + /* Get the size of the terminal */ + if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1) + fprintf(stderr, "%s: ioctl <stdout> TIOCGWINSZ: %s\n", argv0, strerror(errno)); + else + cols = win.ws_col; + + line = malloc((size_t)cols * 3); + space = malloc((size_t)cols); + if (!line || !space) { + fprintf(stderr, "%s: malloc: %s\n", argv0, strerror(ENOMEM)); + return 1; + } + for (i = 0; i < cols; i++) { + line[i * 3 + 0] = (char)(0xE2); + line[i * 3 + 1] = (char)(0x94); + line[i * 3 + 2] = (char)(0x80); + } + memset(space, ' ', (size_t)cols); + space[cols - 1] = '\0'; + line[(cols - 2) * 3] = '\0'; + + /* stty -icanon -echo */ + if (tcgetattr(STDIN_FILENO, &stty)) { + fprintf(stderr, "%s: tcgetattr <stdin>: %s\n", argv0, strerror(errno)); + return 1; + } + saved_stty = stty; + stty.c_lflag &= (tcflag_t)~(ICANON | ECHO); + if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &stty)) { + fprintf(stderr, "%s: tcsetattr <stdin>: %s\n", argv0, strerror(errno)); + return 1; + } + + /* Hide cursor */ + printf("%s", "\033[?25l"); + fflush(stdout); + + /* Fork to diminish risk of unclean exit */ + pid = fork(); + if (pid == (pid_t)-1) { + fprintf(stderr, "%s: fork: %s\n", argv0, strerror(errno)); + } else if (pid) { + waitpid(pid, NULL, 0); + goto done; + } + } + + if (argc) { + for (; *argv; argv++) { + if (strchr(*argv, '/')) + *argv = strrchr(*argv, '/'); + handle_device(*argv, get, !!set, set_value, set_prefix == '+', set_suffix); + } + } else { + if ((dir = opendir(BACKLIGHT_DIR))) { + while ((ent = readdir(dir))) { + if (all || strstr(ent->d_name, "acpi_video") == ent->d_name) { + if (*ent->d_name && *ent->d_name != '.') { + handle_device(ent->d_name, get, !!set, set_value, set_prefix == '+', set_suffix); + any = 1; + } + } + } + closedir(dir); + } + if (!any) + fprintf(stderr, "%s: cannot find any backlight devices\n", argv0); + } + + if (get) { + if (nbrightness) { + brightness *= 100; + brightness /= (double)nbrightness; + printf("%.2lf%%\n", brightness); + fflush(stdout); + } else { + printf("%s\n", "100.00%"); + fflush(stdout); + } + } + +done: + if (!get && !set && pid) { + /* Show cursor */ + printf("%s", "\033[?25h"); + fflush(stdout); + + /* `stty icanon echo` */ + if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &saved_stty)) { + fprintf(stderr, "%s: tcsetattr <stdin>: %s\n", argv0, strerror(errno)); + return 1; + } + } + + return 0; +} @@ -0,0 +1,76 @@ +/* + * Copy me if you can. + * by 20h + */ + +#ifndef ARG_H__ +#define ARG_H__ + +extern char *argv0; + +/* use main(int argc, char *argv[]) */ +#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ + argv[0] && argv[0][1];\ + argc--, argv++) {\ + char argc_;\ + char **argv_;\ + int brk_;\ + if (argv[0][0] == '-') {\ + if (argv[0][1] == '-' && argv[0][2] == '\0') {\ + argv++;\ + argc--;\ + break;\ + }\ + for (brk_ = 0, argv[0]++, argv_ = argv;\ + argv[0][0] && !brk_;\ + argv[0]++) {\ + if (argv_ != argv)\ + break;\ + argc_ = argv[0][0];\ + switch (argc_) + +/* Handles obsolete -NUM syntax */ +#define ARGNUM case '0':\ + case '1':\ + case '2':\ + case '3':\ + case '4':\ + case '5':\ + case '6':\ + case '7':\ + case '8':\ + case '9' + +#define ARGALT(SYMBOL) }\ + } else if (argv[0][0] == SYMBOL) {\ + for (brk_ = 0, argv[0]++, argv_ = argv;\ + argv[0][0] && !brk_;\ + argv[0]++) {\ + if (argv_ != argv)\ + break;\ + argc_ = argv[0][0];\ + switch (argc_) + +#define ARGEND }\ + } else {\ + break;\ + }\ + } + +#define ARGC() argc_ + +#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX)) + +#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ + ((x), abort(), (char *)0) :\ + (brk_ = 1, (argv[0][1] != '\0')?\ + (&argv[0][1]) :\ + (argc--, argv++, argv[0]))) + +#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ + (char *)0 :\ + (brk_ = 1, (argv[0][1] != '\0')?\ + (&argv[0][1]) :\ + (argc--, argv++, argv[0]))) + +#endif diff --git a/config.mk b/config.mk new file mode 100644 index 0000000..6f50bbb --- /dev/null +++ b/config.mk @@ -0,0 +1,6 @@ +PREFIX = /usr/local +MANPREFIX = $(PREFIX)/share/man + +CCFLAGS = -std=c99 -Wall -Wextra -O2 +CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 +LDFLAGS = -s diff --git a/dist/archlinux/stable/PKGBUILD b/dist/archlinux/stable/PKGBUILD deleted file mode 100644 index db8faf1..0000000 --- a/dist/archlinux/stable/PKGBUILD +++ /dev/null @@ -1,26 +0,0 @@ -# Maintainer: Mattias Andrée <`base64 -d`(bWFhbmRyZWUK)@member.fsf.org> - -pkgname=adjbacklight -pkgver=7.3.2 -pkgrel=1 -pkgdesc="Convenient method for adjusting the backlight on your portable computer" -arch=('x86_64' 'i686') -url="https://github.com/maandree/adjbacklight" -license=('GPL3') -depends=('linux') -makedepends=('texinfo' 'auto-auto-complete') -install=adjbacklight.install -source=(https://github.com/maandree/adjbacklight/archive/${pkgver}.tar.gz) -sha256sums=(75b7760a2cda157b0a27d3d4290c73e6b4219d9b08a3b6f466e8486aa6be7d0a) - - -build() { - cd "${srcdir}/adjbacklight-${pkgver}" - make DESTDIR="${pkgdir}/" -} - -package() { - cd "${srcdir}/adjbacklight-${pkgver}" - make DESTDIR="${pkgdir}/" install -} - diff --git a/dist/archlinux/stable/adjbacklight.install b/dist/archlinux/stable/adjbacklight.install deleted file mode 100644 index ab4d945..0000000 --- a/dist/archlinux/stable/adjbacklight.install +++ /dev/null @@ -1,20 +0,0 @@ -_file="adjbacklight" - -infodir="usr/share/info" -file="${_file}.info" - - -post_install() { - [[ -x "usr/bin/install-info" ]] || return 0 - install-info -- "${infodir}/${file}" "${infodir}/dir" 2> /dev/null -} - -post_upgrade() { - post_install "$1" -} - -pre_remove() { - [[ -x "usr/bin/install-info" ]] || return 0 - install-info --delete -- "${infodir}/${file}" "${infodir}/dir" 2> /dev/null -} - diff --git a/doc/info/adjbacklight.texinfo b/doc/info/adjbacklight.texinfo deleted file mode 100644 index bf1da87..0000000 --- a/doc/info/adjbacklight.texinfo +++ /dev/null @@ -1,252 +0,0 @@ -\input texinfo @c -*-texinfo-*- - -@c %**start of header -@setfilename adjbacklight.info -@settitle adjbacklight -@afourpaper -@documentencoding UTF-8 -@documentlanguage en -@finalout -@c %**end of header - - -@dircategory Miscellaneous -@direntry -* adjbacklight: (adjbacklight). Convenient method for adjusting the backlight on your portable computer -@end direntry - - - -@c @defindex op -@c @synindex op vr -@c @synindex cp pg - - -@copying -This manual is for @command{adjbacklight}. - -Copyright @copyright{} 2013, 2014 Mattias Andrée (maandree@@member.fsf.org) - -@quotation -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, with no Front-Cover Texts, and with no Back-Cover -Texts. A copy of the license is included in the section entitled -``GNU Free Documentation License''. -@end quotation -@end copying - - -@ifnottex -@node Top -@top adjbacklight -@insertcopying -@end ifnottex - -@titlepage -@title adjbacklight 7.1 -@subtitle Convenient method for adjusting the backlight on your portable computer. -@author Mattias Andrée, maandree@@member.fsf.org -@page -@vskip 0pt plus 1filll -@insertcopying -@page -@*@* -@center `And sometimes the portable computers' adjustment keys arn't even wired to the hardware…' -@end titlepage - -@contents - - -@menu -* Overview:: Overview of @command{adjbacklight} -* Invoking:: How to start @command{adjbacklight} -* Using:: How to use @command{adjbacklight} -* Behind the scenes:: How @command{adjbacklight} works -* License of adjbacklight:: Summary of the license of the program -* GNU General Public License:: The license of the program -* GNU Free Documentation License:: The license of this manual -* Concept index:: Concept index -@end menu - - - -@node Overview -@chapter Overview -@cindex overview -@cindex description - -@command{adjbacklight} is convient method for adjusting the backlight on your -portable computer. Depending on your computer, the details of @command{adjbacklight} -differs. - -For some computers program will adjust the same parameters as the keys on your -keyboard, one other computers this program will adjust an independent parameter -allowing more detailed adjustment and may not be affected by the battery status -change. One some computers the keys for the suns does not do anything and is -expected to be binded by the OS, for thoses computers this may be the best choice -if you are in the TTY. - -@command{adjbacklight} allows 0.5 % precision, assuming that the firmware allows -at least that. If you want higher precision, it is simple to modify the source -code. Just run @code{sed -i s/200/400/g src/adjbacklight.c}, if you want -0.25 % precision. - -@cindex root -@cindex video -@cindex permissions -To use @command{adjbacklight} you must either be root or be a member of the -group `video'. The `video' membership requirement is artificial so you can rip -that out from the code if you prefer, but the effective user must be `root' -(EUID = 0) otherwise you will not have permission to use files in -@file{/sys/class/backlight} unless you make your initialisation -system give you access. - - - -@node Invoking -@chapter Invoking -@cindex invoking -@cindex starting -@cindex options -@cindex arguments -@cindex device -@cindex selecting device -@cindex interactive mode -@cindex non-interactive mode -@cindex @command{adjbacklight} -@cindex @option{-c} -@cindex @option{--copying} -@cindex @option{--copyright} -@cindex @option{-w} -@cindex @option{--warranty} -@cindex @option{-a} -@cindex @option{--all} -@cindex @option{-g} -@cindex @option{--get} -@cindex @option{-s} -@cindex @option{--set} - -@command{adjbacklight} can be started with @option{-c}, @option{--copying} or -@option{--copyright} for displaying copyright information, @option{-w} or -@option{--warranty} for displaying a warranty disclaimer. - -To actually use the program, just execute @command{adjbacklight} without any -arguments, or with @option{-a} or @option{--all} to not limit the devices to -those that are not ACPI video devices. Alternatively you can list the devices -either by full path or just the name in the directory @file{/sys/class/backlight}. - -If you do not want to run in interactive mode, you can use the option -@option{-g} or @option{--get} to get the average backlight of all devices -selected by the arguments (as in interactive mode), the value will be -printed percents with no whitespace between the value and the percent, -the value will be formated in the traditional computer format, only 0-9 -with one dot (.) for separation of the integer part and the decimal part -(which will be two digits.) If you want to set the backlight there are -a few ways to do this: @option{-s} or @option{--set} followed by a value -or the value directly but with a prepending `=' if it does not start with -`+' or `-'. This argument is formated similar to the value printed by -@option{--get}, except it may end with zero, one, or two percent signed. -`+' is used for increase in brightness, `-' for decrease. Zero percent -signed is used for a raw value, one percent signed is used for a cooked -value that is usable on all backlight devices, and two percent signed -is used for a value relative to the current value. - -Assume the current backlight is 50 (25 %) on a device and the maximum is -200. @code{+25} will set it to 75 (37,5 %) and @code{-25} will set it to -25 (12,5 %). @code{+50%} will set it to 75 % (150), @code{-50%} would -set it to -25 % (-50) but because that is not within the accepted value -range it will be truncated to 0. @code{+100%%} will set it to 100 (50 %), -that it 200 % of the current brightness, @code{-50%%} will set it to -25 (12,5 %), that is 50 % of the current brightness. For the following -formats the `=' is optional if @option{-s} or @option{--set} is used. -@code{=150} will set the brightness to 150 (75 %), @code{=50%} will set -it to 50 % (100), and @code{=200%%} will set it to 100 (50 %), that is -200 % of the current brightness. - - - -@node Using -@chapter Using -@cindex interactive mode -@cindex usage -@cindex keyboard -@cindex darken screen -@cindex brighten screen -@cindex quit -@cindex exit -@cindex close -@cindex next screen - -When you run @command{adjbacklight} in interactive mode, the following -keys are used to adjust the backlighting: - -The @kbd{left} and @kbd{down} arrow keys are used to darken the screen. -The @kbd{right} and @kbd{up} arrow keys are used to brighten the screen. -@kbd{q}, @kbd{enter} and @kbd{<control>d} continues to the next backlight -controller, or if you are at the last one, exits the program. - - - -@node Behind the scenes -@chapter Behind the scenes -@cindex behind the scenes -@cindex inner workings - -On normally configured Linux systems, the kernel mounts a virtual -partition on @file{/sys}. If you have screens using backlight, -you should find backlight device in @file{/sys/class/backlight}. -These devices are directories containing control files which you -can read the current values from or write to (perhaps using @command{echo}) -to modify the value. In a directory in @file{/sys/class/backlight} -you will find @file{brightness} and @file{max_brightness}. -Just read from @file{max_brightness} to get the maximum allowed integer -value in @file{brightness}, the minimum value is 0. - - - -@node License of adjbacklight -@appendix License of adjbacklight -@flushleft -adjbacklight – Convient method for adjusting the backlight on your portable computer - -Copyright © 2012, 2013, 2014 Mattias Andrée (maandree@@member.fsf.org) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program. If not, see <http://www.gnu.org/licenses/>. -@end flushleft - -@node GNU General Public License -@appendix GNU General Public License -@include gpl.texinfo - -@node GNU Free Documentation License -@appendix GNU Free Documentation License -@include fdl.texinfo - -@node Concept index -@appendix Concept index -@printindex cp - -@c @node Concept and program index -@c @appendix Concept and program index -@c @printindex pg - -@c @node Variable and option index -@c @appendix Variable and option index -@c @printindex vr - - -@bye - diff --git a/doc/info/fdl.texinfo b/doc/info/fdl.texinfo deleted file mode 100644 index cb71f05..0000000 --- a/doc/info/fdl.texinfo +++ /dev/null @@ -1,505 +0,0 @@ -@c The GNU Free Documentation License. -@center Version 1.3, 3 November 2008 - -@c This file is intended to be included within another document, -@c hence no sectioning command or @node. - -@display -Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. -@uref{http://fsf.org/} - -Everyone is permitted to copy and distribute verbatim copies -of this license document, but changing it is not allowed. -@end display - -@enumerate 0 -@item -PREAMBLE - -The purpose of this License is to make a manual, textbook, or other -functional and useful document @dfn{free} in the sense of freedom: to -assure everyone the effective freedom to copy and redistribute it, -with or without modifying it, either commercially or noncommercially. -Secondarily, this License preserves for the author and publisher a way -to get credit for their work, while not being considered responsible -for modifications made by others. - -This License is a kind of ``copyleft'', which means that derivative -works of the document must themselves be free in the same sense. It -complements the GNU General Public License, which is a copyleft -license designed for free software. - -We have designed this License in order to use it for manuals for free -software, because free software needs free documentation: a free -program should come with manuals providing the same freedoms that the -software does. But this License is not limited to software manuals; -it can be used for any textual work, regardless of subject matter or -whether it is published as a printed book. We recommend this License -principally for works whose purpose is instruction or reference. - -@item -APPLICABILITY AND DEFINITIONS - -This License applies to any manual or other work, in any medium, that -contains a notice placed by the copyright holder saying it can be -distributed under the terms of this License. Such a notice grants a -world-wide, royalty-free license, unlimited in duration, to use that -work under the conditions stated herein. The ``Document'', below, -refers to any such manual or work. Any member of the public is a -licensee, and is addressed as ``you''. You accept the license if you -copy, modify or distribute the work in a way requiring permission -under copyright law. - -A ``Modified Version'' of the Document means any work containing the -Document or a portion of it, either copied verbatim, or with -modifications and/or translated into another language. - -A ``Secondary Section'' is a named appendix or a front-matter section -of the Document that deals exclusively with the relationship of the -publishers or authors of the Document to the Document's overall -subject (or to related matters) and contains nothing that could fall -directly within that overall subject. (Thus, if the Document is in -part a textbook of mathematics, a Secondary Section may not explain -any mathematics.) The relationship could be a matter of historical -connection with the subject or with related matters, or of legal, -commercial, philosophical, ethical or political position regarding -them. - -The ``Invariant Sections'' are certain Secondary Sections whose titles -are designated, as being those of Invariant Sections, in the notice -that says that the Document is released under this License. If a -section does not fit the above definition of Secondary then it is not -allowed to be designated as Invariant. The Document may contain zero -Invariant Sections. If the Document does not identify any Invariant -Sections then there are none. - -The ``Cover Texts'' are certain short passages of text that are listed, -as Front-Cover Texts or Back-Cover Texts, in the notice that says that -the Document is released under this License. A Front-Cover Text may -be at most 5 words, and a Back-Cover Text may be at most 25 words. - -A ``Transparent'' copy of the Document means a machine-readable copy, -represented in a format whose specification is available to the -general public, that is suitable for revising the document -straightforwardly with generic text editors or (for images composed of -pixels) generic paint programs or (for drawings) some widely available -drawing editor, and that is suitable for input to text formatters or -for automatic translation to a variety of formats suitable for input -to text formatters. A copy made in an otherwise Transparent file -format whose markup, or absence of markup, has been arranged to thwart -or discourage subsequent modification by readers is not Transparent. -An image format is not Transparent if used for any substantial amount -of text. A copy that is not ``Transparent'' is called ``Opaque''. - -Examples of suitable formats for Transparent copies include plain -ASCII without markup, Texinfo input format, La@TeX{} input -format, SGML or XML using a publicly available -DTD, and standard-conforming simple HTML, -PostScript or PDF designed for human modification. Examples -of transparent image formats include PNG, XCF and -JPG. Opaque formats include proprietary formats that can be -read and edited only by proprietary word processors, SGML or -XML for which the DTD and/or processing tools are -not generally available, and the machine-generated HTML, -PostScript or PDF produced by some word processors for -output purposes only. - -The ``Title Page'' means, for a printed book, the title page itself, -plus such following pages as are needed to hold, legibly, the material -this License requires to appear in the title page. For works in -formats which do not have any title page as such, ``Title Page'' means -the text near the most prominent appearance of the work's title, -preceding the beginning of the body of the text. - -The ``publisher'' means any person or entity that distributes copies -of the Document to the public. - -A section ``Entitled XYZ'' means a named subunit of the Document whose -title either is precisely XYZ or contains XYZ in parentheses following -text that translates XYZ in another language. (Here XYZ stands for a -specific section name mentioned below, such as ``Acknowledgements'', -``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title'' -of such a section when you modify the Document means that it remains a -section ``Entitled XYZ'' according to this definition. - -The Document may include Warranty Disclaimers next to the notice which -states that this License applies to the Document. These Warranty -Disclaimers are considered to be included by reference in this -License, but only as regards disclaiming warranties: any other -implication that these Warranty Disclaimers may have is void and has -no effect on the meaning of this License. - -@item -VERBATIM COPYING - -You may copy and distribute the Document in any medium, either -commercially or noncommercially, provided that this License, the -copyright notices, and the license notice saying this License applies -to the Document are reproduced in all copies, and that you add no other -conditions whatsoever to those of this License. You may not use -technical measures to obstruct or control the reading or further -copying of the copies you make or distribute. However, you may accept -compensation in exchange for copies. If you distribute a large enough -number of copies you must also follow the conditions in section 3. - -You may also lend copies, under the same conditions stated above, and -you may publicly display copies. - -@item -COPYING IN QUANTITY - -If you publish printed copies (or copies in media that commonly have -printed covers) of the Document, numbering more than 100, and the -Document's license notice requires Cover Texts, you must enclose the -copies in covers that carry, clearly and legibly, all these Cover -Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on -the back cover. Both covers must also clearly and legibly identify -you as the publisher of these copies. The front cover must present -the full title with all words of the title equally prominent and -visible. You may add other material on the covers in addition. -Copying with changes limited to the covers, as long as they preserve -the title of the Document and satisfy these conditions, can be treated -as verbatim copying in other respects. - -If the required texts for either cover are too voluminous to fit -legibly, you should put the first ones listed (as many as fit -reasonably) on the actual cover, and continue the rest onto adjacent -pages. - -If you publish or distribute Opaque copies of the Document numbering -more than 100, you must either include a machine-readable Transparent -copy along with each Opaque copy, or state in or with each Opaque copy -a computer-network location from which the general network-using -public has access to download using public-standard network protocols -a complete Transparent copy of the Document, free of added material. -If you use the latter option, you must take reasonably prudent steps, -when you begin distribution of Opaque copies in quantity, to ensure -that this Transparent copy will remain thus accessible at the stated -location until at least one year after the last time you distribute an -Opaque copy (directly or through your agents or retailers) of that -edition to the public. - -It is requested, but not required, that you contact the authors of the -Document well before redistributing any large number of copies, to give -them a chance to provide you with an updated version of the Document. - -@item -MODIFICATIONS - -You may copy and distribute a Modified Version of the Document under -the conditions of sections 2 and 3 above, provided that you release -the Modified Version under precisely this License, with the Modified -Version filling the role of the Document, thus licensing distribution -and modification of the Modified Version to whoever possesses a copy -of it. In addition, you must do these things in the Modified Version: - -@enumerate A -@item -Use in the Title Page (and on the covers, if any) a title distinct -from that of the Document, and from those of previous versions -(which should, if there were any, be listed in the History section -of the Document). You may use the same title as a previous version -if the original publisher of that version gives permission. - -@item -List on the Title Page, as authors, one or more persons or entities -responsible for authorship of the modifications in the Modified -Version, together with at least five of the principal authors of the -Document (all of its principal authors, if it has fewer than five), -unless they release you from this requirement. - -@item -State on the Title page the name of the publisher of the -Modified Version, as the publisher. - -@item -Preserve all the copyright notices of the Document. - -@item -Add an appropriate copyright notice for your modifications -adjacent to the other copyright notices. - -@item -Include, immediately after the copyright notices, a license notice -giving the public permission to use the Modified Version under the -terms of this License, in the form shown in the Addendum below. - -@item -Preserve in that license notice the full lists of Invariant Sections -and required Cover Texts given in the Document's license notice. - -@item -Include an unaltered copy of this License. - -@item -Preserve the section Entitled ``History'', Preserve its Title, and add -to it an item stating at least the title, year, new authors, and -publisher of the Modified Version as given on the Title Page. If -there is no section Entitled ``History'' in the Document, create one -stating the title, year, authors, and publisher of the Document as -given on its Title Page, then add an item describing the Modified -Version as stated in the previous sentence. - -@item -Preserve the network location, if any, given in the Document for -public access to a Transparent copy of the Document, and likewise -the network locations given in the Document for previous versions -it was based on. These may be placed in the ``History'' section. -You may omit a network location for a work that was published at -least four years before the Document itself, or if the original -publisher of the version it refers to gives permission. - -@item -For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve -the Title of the section, and preserve in the section all the -substance and tone of each of the contributor acknowledgements and/or -dedications given therein. - -@item -Preserve all the Invariant Sections of the Document, -unaltered in their text and in their titles. Section numbers -or the equivalent are not considered part of the section titles. - -@item -Delete any section Entitled ``Endorsements''. Such a section -may not be included in the Modified Version. - -@item -Do not retitle any existing section to be Entitled ``Endorsements'' or -to conflict in title with any Invariant Section. - -@item -Preserve any Warranty Disclaimers. -@end enumerate - -If the Modified Version includes new front-matter sections or -appendices that qualify as Secondary Sections and contain no material -copied from the Document, you may at your option designate some or all -of these sections as invariant. To do this, add their titles to the -list of Invariant Sections in the Modified Version's license notice. -These titles must be distinct from any other section titles. - -You may add a section Entitled ``Endorsements'', provided it contains -nothing but endorsements of your Modified Version by various -parties---for example, statements of peer review or that the text has -been approved by an organization as the authoritative definition of a -standard. - -You may add a passage of up to five words as a Front-Cover Text, and a -passage of up to 25 words as a Back-Cover Text, to the end of the list -of Cover Texts in the Modified Version. Only one passage of -Front-Cover Text and one of Back-Cover Text may be added by (or -through arrangements made by) any one entity. If the Document already -includes a cover text for the same cover, previously added by you or -by arrangement made by the same entity you are acting on behalf of, -you may not add another; but you may replace the old one, on explicit -permission from the previous publisher that added the old one. - -The author(s) and publisher(s) of the Document do not by this License -give permission to use their names for publicity for or to assert or -imply endorsement of any Modified Version. - -@item -COMBINING DOCUMENTS - -You may combine the Document with other documents released under this -License, under the terms defined in section 4 above for modified -versions, provided that you include in the combination all of the -Invariant Sections of all of the original documents, unmodified, and -list them all as Invariant Sections of your combined work in its -license notice, and that you preserve all their Warranty Disclaimers. - -The combined work need only contain one copy of this License, and -multiple identical Invariant Sections may be replaced with a single -copy. If there are multiple Invariant Sections with the same name but -different contents, make the title of each such section unique by -adding at the end of it, in parentheses, the name of the original -author or publisher of that section if known, or else a unique number. -Make the same adjustment to the section titles in the list of -Invariant Sections in the license notice of the combined work. - -In the combination, you must combine any sections Entitled ``History'' -in the various original documents, forming one section Entitled -``History''; likewise combine any sections Entitled ``Acknowledgements'', -and any sections Entitled ``Dedications''. You must delete all -sections Entitled ``Endorsements.'' - -@item -COLLECTIONS OF DOCUMENTS - -You may make a collection consisting of the Document and other documents -released under this License, and replace the individual copies of this -License in the various documents with a single copy that is included in -the collection, provided that you follow the rules of this License for -verbatim copying of each of the documents in all other respects. - -You may extract a single document from such a collection, and distribute -it individually under this License, provided you insert a copy of this -License into the extracted document, and follow this License in all -other respects regarding verbatim copying of that document. - -@item -AGGREGATION WITH INDEPENDENT WORKS - -A compilation of the Document or its derivatives with other separate -and independent documents or works, in or on a volume of a storage or -distribution medium, is called an ``aggregate'' if the copyright -resulting from the compilation is not used to limit the legal rights -of the compilation's users beyond what the individual works permit. -When the Document is included in an aggregate, this License does not -apply to the other works in the aggregate which are not themselves -derivative works of the Document. - -If the Cover Text requirement of section 3 is applicable to these -copies of the Document, then if the Document is less than one half of -the entire aggregate, the Document's Cover Texts may be placed on -covers that bracket the Document within the aggregate, or the -electronic equivalent of covers if the Document is in electronic form. -Otherwise they must appear on printed covers that bracket the whole -aggregate. - -@item -TRANSLATION - -Translation is considered a kind of modification, so you may -distribute translations of the Document under the terms of section 4. -Replacing Invariant Sections with translations requires special -permission from their copyright holders, but you may include -translations of some or all Invariant Sections in addition to the -original versions of these Invariant Sections. You may include a -translation of this License, and all the license notices in the -Document, and any Warranty Disclaimers, provided that you also include -the original English version of this License and the original versions -of those notices and disclaimers. In case of a disagreement between -the translation and the original version of this License or a notice -or disclaimer, the original version will prevail. - -If a section in the Document is Entitled ``Acknowledgements'', -``Dedications'', or ``History'', the requirement (section 4) to Preserve -its Title (section 1) will typically require changing the actual -title. - -@item -TERMINATION - -You may not copy, modify, sublicense, or distribute the Document -except as expressly provided under this License. Any attempt -otherwise to copy, modify, sublicense, or distribute it is void, and -will automatically terminate your rights under this License. - -However, if you cease all violation of this License, then your license -from a particular copyright holder is reinstated (a) provisionally, -unless and until the copyright holder explicitly and finally -terminates your license, and (b) permanently, if the copyright holder -fails to notify you of the violation by some reasonable means prior to -60 days after the cessation. - -Moreover, your license from a particular copyright holder is -reinstated permanently if the copyright holder notifies you of the -violation by some reasonable means, this is the first time you have -received notice of violation of this License (for any work) from that -copyright holder, and you cure the violation prior to 30 days after -your receipt of the notice. - -Termination of your rights under this section does not terminate the -licenses of parties who have received copies or rights from you under -this License. If your rights have been terminated and not permanently -reinstated, receipt of a copy of some or all of the same material does -not give you any rights to use it. - -@item -FUTURE REVISIONS OF THIS LICENSE - -The Free Software Foundation may publish new, revised versions -of the GNU Free Documentation License from time to time. Such new -versions will be similar in spirit to the present version, but may -differ in detail to address new problems or concerns. See -@uref{http://www.gnu.org/copyleft/}. - -Each version of the License is given a distinguishing version number. -If the Document specifies that a particular numbered version of this -License ``or any later version'' applies to it, you have the option of -following the terms and conditions either of that specified version or -of any later version that has been published (not as a draft) by the -Free Software Foundation. If the Document does not specify a version -number of this License, you may choose any version ever published (not -as a draft) by the Free Software Foundation. If the Document -specifies that a proxy can decide which future versions of this -License can be used, that proxy's public statement of acceptance of a -version permanently authorizes you to choose that version for the -Document. - -@item -RELICENSING - -``Massive Multiauthor Collaboration Site'' (or ``MMC Site'') means any -World Wide Web server that publishes copyrightable works and also -provides prominent facilities for anybody to edit those works. A -public wiki that anybody can edit is an example of such a server. A -``Massive Multiauthor Collaboration'' (or ``MMC'') contained in the -site means any set of copyrightable works thus published on the MMC -site. - -``CC-BY-SA'' means the Creative Commons Attribution-Share Alike 3.0 -license published by Creative Commons Corporation, a not-for-profit -corporation with a principal place of business in San Francisco, -California, as well as future copyleft versions of that license -published by that same organization. - -``Incorporate'' means to publish or republish a Document, in whole or -in part, as part of another Document. - -An MMC is ``eligible for relicensing'' if it is licensed under this -License, and if all works that were first published under this License -somewhere other than this MMC, and subsequently incorporated in whole -or in part into the MMC, (1) had no cover texts or invariant sections, -and (2) were thus incorporated prior to November 1, 2008. - -The operator of an MMC Site may republish an MMC contained in the site -under CC-BY-SA on the same site at any time before August 1, 2009, -provided the MMC is eligible for relicensing. - -@end enumerate - -@page -@heading ADDENDUM: How to use this License for your documents - -To use this License in a document you have written, include a copy of -the License in the document and put the following copyright and -license notices just after the title page: - -@smallexample -@group - Copyright (C) @var{year} @var{your name}. - Permission is granted to copy, distribute and/or modify this document - under the terms of the GNU Free Documentation License, Version 1.3 - or any later version published by the Free Software Foundation; - with no Invariant Sections, no Front-Cover Texts, and no Back-Cover - Texts. A copy of the license is included in the section entitled ``GNU - Free Documentation License''. -@end group -@end smallexample - -If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, -replace the ``with@dots{}Texts.''@: line with this: - -@smallexample -@group - with the Invariant Sections being @var{list their titles}, with - the Front-Cover Texts being @var{list}, and with the Back-Cover Texts - being @var{list}. -@end group -@end smallexample - -If you have Invariant Sections without Cover Texts, or some other -combination of the three, merge those two alternatives to suit the -situation. - -If your document contains nontrivial examples of program code, we -recommend releasing these examples in parallel under your choice of -free software license, such as the GNU General Public License, -to permit their use in free software. - -@c Local Variables: -@c ispell-local-pdict: "ispell-dict" -@c End: diff --git a/doc/info/gpl.texinfo b/doc/info/gpl.texinfo deleted file mode 100644 index 97a17e1..0000000 --- a/doc/info/gpl.texinfo +++ /dev/null @@ -1,717 +0,0 @@ -@c The GNU General Public License. -@center Version 3, 29 June 2007 - -@c This file is intended to be included within another document, -@c hence no sectioning command or @node. - -@display -Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/} - -Everyone is permitted to copy and distribute verbatim copies of this -license document, but changing it is not allowed. -@end display - -@heading Preamble - -The GNU General Public License is a free, copyleft license for -software and other kinds of works. - -The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom -to share and change all versions of a program---to make sure it remains -free software for all its users. We, the Free Software Foundation, -use the GNU General Public License for most of our software; it -applies also to any other work released this way by its authors. You -can apply it to your programs, too. - -When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -them if you wish), that you receive source code or can get it if you -want it, that you can change the software or use pieces of it in new -free programs, and that you know you can do these things. - -To protect your rights, we need to prevent others from denying you -these rights or asking you to surrender the rights. Therefore, you -have certain responsibilities if you distribute copies of the -software, or if you modify it: responsibilities to respect the freedom -of others. - -For example, if you distribute copies of such a program, whether -gratis or for a fee, you must pass on to the recipients the same -freedoms that you received. You must make sure that they, too, -receive or can get the source code. And you must show them these -terms so they know their rights. - -Developers that use the GNU GPL protect your rights with two steps: -(1) assert copyright on the software, and (2) offer you this License -giving you legal permission to copy, distribute and/or modify it. - -For the developers' and authors' protection, the GPL clearly explains -that there is no warranty for this free software. For both users' and -authors' sake, the GPL requires that modified versions be marked as -changed, so that their problems will not be attributed erroneously to -authors of previous versions. - -Some devices are designed to deny users access to install or run -modified versions of the software inside them, although the -manufacturer can do so. This is fundamentally incompatible with the -aim of protecting users' freedom to change the software. The -systematic pattern of such abuse occurs in the area of products for -individuals to use, which is precisely where it is most unacceptable. -Therefore, we have designed this version of the GPL to prohibit the -practice for those products. If such problems arise substantially in -other domains, we stand ready to extend this provision to those -domains in future versions of the GPL, as needed to protect the -freedom of users. - -Finally, every program is threatened constantly by software patents. -States should not allow patents to restrict development and use of -software on general-purpose computers, but in those that do, we wish -to avoid the special danger that patents applied to a free program -could make it effectively proprietary. To prevent this, the GPL -assures that patents cannot be used to render the program non-free. - -The precise terms and conditions for copying, distribution and -modification follow. - -@heading TERMS AND CONDITIONS - -@enumerate 0 -@item Definitions. - -``This License'' refers to version 3 of the GNU General Public License. - -``Copyright'' also means copyright-like laws that apply to other kinds -of works, such as semiconductor masks. - -``The Program'' refers to any copyrightable work licensed under this -License. Each licensee is addressed as ``you''. ``Licensees'' and -``recipients'' may be individuals or organizations. - -To ``modify'' a work means to copy from or adapt all or part of the work -in a fashion requiring copyright permission, other than the making of -an exact copy. The resulting work is called a ``modified version'' of -the earlier work or a work ``based on'' the earlier work. - -A ``covered work'' means either the unmodified Program or a work based -on the Program. - -To ``propagate'' a work means to do anything with it that, without -permission, would make you directly or secondarily liable for -infringement under applicable copyright law, except executing it on a -computer or modifying a private copy. Propagation includes copying, -distribution (with or without modification), making available to the -public, and in some countries other activities as well. - -To ``convey'' a work means any kind of propagation that enables other -parties to make or receive copies. Mere interaction with a user -through a computer network, with no transfer of a copy, is not -conveying. - -An interactive user interface displays ``Appropriate Legal Notices'' to -the extent that it includes a convenient and prominently visible -feature that (1) displays an appropriate copyright notice, and (2) -tells the user that there is no warranty for the work (except to the -extent that warranties are provided), that licensees may convey the -work under this License, and how to view a copy of this License. If -the interface presents a list of user commands or options, such as a -menu, a prominent item in the list meets this criterion. - -@item Source Code. - -The ``source code'' for a work means the preferred form of the work for -making modifications to it. ``Object code'' means any non-source form -of a work. - -A ``Standard Interface'' means an interface that either is an official -standard defined by a recognized standards body, or, in the case of -interfaces specified for a particular programming language, one that -is widely used among developers working in that language. - -The ``System Libraries'' of an executable work include anything, other -than the work as a whole, that (a) is included in the normal form of -packaging a Major Component, but which is not part of that Major -Component, and (b) serves only to enable use of the work with that -Major Component, or to implement a Standard Interface for which an -implementation is available to the public in source code form. A -``Major Component'', in this context, means a major essential component -(kernel, window system, and so on) of the specific operating system -(if any) on which the executable work runs, or a compiler used to -produce the work, or an object code interpreter used to run it. - -The ``Corresponding Source'' for a work in object code form means all -the source code needed to generate, install, and (for an executable -work) run the object code and to modify the work, including scripts to -control those activities. However, it does not include the work's -System Libraries, or general-purpose tools or generally available free -programs which are used unmodified in performing those activities but -which are not part of the work. For example, Corresponding Source -includes interface definition files associated with source files for -the work, and the source code for shared libraries and dynamically -linked subprograms that the work is specifically designed to require, -such as by intimate data communication or control flow between those -subprograms and other parts of the work. - -The Corresponding Source need not include anything that users can -regenerate automatically from other parts of the Corresponding Source. - -The Corresponding Source for a work in source code form is that same -work. - -@item Basic Permissions. - -All rights granted under this License are granted for the term of -copyright on the Program, and are irrevocable provided the stated -conditions are met. This License explicitly affirms your unlimited -permission to run the unmodified Program. The output from running a -covered work is covered by this License only if the output, given its -content, constitutes a covered work. This License acknowledges your -rights of fair use or other equivalent, as provided by copyright law. - -You may make, run and propagate covered works that you do not convey, -without conditions so long as your license otherwise remains in force. -You may convey covered works to others for the sole purpose of having -them make modifications exclusively for you, or provide you with -facilities for running those works, provided that you comply with the -terms of this License in conveying all material for which you do not -control copyright. Those thus making or running the covered works for -you must do so exclusively on your behalf, under your direction and -control, on terms that prohibit them from making any copies of your -copyrighted material outside their relationship with you. - -Conveying under any other circumstances is permitted solely under the -conditions stated below. Sublicensing is not allowed; section 10 -makes it unnecessary. - -@item Protecting Users' Legal Rights From Anti-Circumvention Law. - -No covered work shall be deemed part of an effective technological -measure under any applicable law fulfilling obligations under article -11 of the WIPO copyright treaty adopted on 20 December 1996, or -similar laws prohibiting or restricting circumvention of such -measures. - -When you convey a covered work, you waive any legal power to forbid -circumvention of technological measures to the extent such -circumvention is effected by exercising rights under this License with -respect to the covered work, and you disclaim any intention to limit -operation or modification of the work as a means of enforcing, against -the work's users, your or third parties' legal rights to forbid -circumvention of technological measures. - -@item Conveying Verbatim Copies. - -You may convey verbatim copies of the Program's source code as you -receive it, in any medium, provided that you conspicuously and -appropriately publish on each copy an appropriate copyright notice; -keep intact all notices stating that this License and any -non-permissive terms added in accord with section 7 apply to the code; -keep intact all notices of the absence of any warranty; and give all -recipients a copy of this License along with the Program. - -You may charge any price or no price for each copy that you convey, -and you may offer support or warranty protection for a fee. - -@item Conveying Modified Source Versions. - -You may convey a work based on the Program, or the modifications to -produce it from the Program, in the form of source code under the -terms of section 4, provided that you also meet all of these -conditions: - -@enumerate a -@item -The work must carry prominent notices stating that you modified it, -and giving a relevant date. - -@item -The work must carry prominent notices stating that it is released -under this License and any conditions added under section 7. This -requirement modifies the requirement in section 4 to ``keep intact all -notices''. - -@item -You must license the entire work, as a whole, under this License to -anyone who comes into possession of a copy. This License will -therefore apply, along with any applicable section 7 additional terms, -to the whole of the work, and all its parts, regardless of how they -are packaged. This License gives no permission to license the work in -any other way, but it does not invalidate such permission if you have -separately received it. - -@item -If the work has interactive user interfaces, each must display -Appropriate Legal Notices; however, if the Program has interactive -interfaces that do not display Appropriate Legal Notices, your work -need not make them do so. -@end enumerate - -A compilation of a covered work with other separate and independent -works, which are not by their nature extensions of the covered work, -and which are not combined with it such as to form a larger program, -in or on a volume of a storage or distribution medium, is called an -``aggregate'' if the compilation and its resulting copyright are not -used to limit the access or legal rights of the compilation's users -beyond what the individual works permit. Inclusion of a covered work -in an aggregate does not cause this License to apply to the other -parts of the aggregate. - -@item Conveying Non-Source Forms. - -You may convey a covered work in object code form under the terms of -sections 4 and 5, provided that you also convey the machine-readable -Corresponding Source under the terms of this License, in one of these -ways: - -@enumerate a -@item -Convey the object code in, or embodied in, a physical product -(including a physical distribution medium), accompanied by the -Corresponding Source fixed on a durable physical medium customarily -used for software interchange. - -@item -Convey the object code in, or embodied in, a physical product -(including a physical distribution medium), accompanied by a written -offer, valid for at least three years and valid for as long as you -offer spare parts or customer support for that product model, to give -anyone who possesses the object code either (1) a copy of the -Corresponding Source for all the software in the product that is -covered by this License, on a durable physical medium customarily used -for software interchange, for a price no more than your reasonable -cost of physically performing this conveying of source, or (2) access -to copy the Corresponding Source from a network server at no charge. - -@item -Convey individual copies of the object code with a copy of the written -offer to provide the Corresponding Source. This alternative is -allowed only occasionally and noncommercially, and only if you -received the object code with such an offer, in accord with subsection -6b. - -@item -Convey the object code by offering access from a designated place -(gratis or for a charge), and offer equivalent access to the -Corresponding Source in the same way through the same place at no -further charge. You need not require recipients to copy the -Corresponding Source along with the object code. If the place to copy -the object code is a network server, the Corresponding Source may be -on a different server (operated by you or a third party) that supports -equivalent copying facilities, provided you maintain clear directions -next to the object code saying where to find the Corresponding Source. -Regardless of what server hosts the Corresponding Source, you remain -obligated to ensure that it is available for as long as needed to -satisfy these requirements. - -@item -Convey the object code using peer-to-peer transmission, provided you -inform other peers where the object code and Corresponding Source of -the work are being offered to the general public at no charge under -subsection 6d. - -@end enumerate - -A separable portion of the object code, whose source code is excluded -from the Corresponding Source as a System Library, need not be -included in conveying the object code work. - -A ``User Product'' is either (1) a ``consumer product'', which means any -tangible personal property which is normally used for personal, -family, or household purposes, or (2) anything designed or sold for -incorporation into a dwelling. In determining whether a product is a -consumer product, doubtful cases shall be resolved in favor of -coverage. For a particular product received by a particular user, -``normally used'' refers to a typical or common use of that class of -product, regardless of the status of the particular user or of the way -in which the particular user actually uses, or expects or is expected -to use, the product. A product is a consumer product regardless of -whether the product has substantial commercial, industrial or -non-consumer uses, unless such uses represent the only significant -mode of use of the product. - -``Installation Information'' for a User Product means any methods, -procedures, authorization keys, or other information required to -install and execute modified versions of a covered work in that User -Product from a modified version of its Corresponding Source. The -information must suffice to ensure that the continued functioning of -the modified object code is in no case prevented or interfered with -solely because modification has been made. - -If you convey an object code work under this section in, or with, or -specifically for use in, a User Product, and the conveying occurs as -part of a transaction in which the right of possession and use of the -User Product is transferred to the recipient in perpetuity or for a -fixed term (regardless of how the transaction is characterized), the -Corresponding Source conveyed under this section must be accompanied -by the Installation Information. But this requirement does not apply -if neither you nor any third party retains the ability to install -modified object code on the User Product (for example, the work has -been installed in ROM). - -The requirement to provide Installation Information does not include a -requirement to continue to provide support service, warranty, or -updates for a work that has been modified or installed by the -recipient, or for the User Product in which it has been modified or -installed. Access to a network may be denied when the modification -itself materially and adversely affects the operation of the network -or violates the rules and protocols for communication across the -network. - -Corresponding Source conveyed, and Installation Information provided, -in accord with this section must be in a format that is publicly -documented (and with an implementation available to the public in -source code form), and must require no special password or key for -unpacking, reading or copying. - -@item Additional Terms. - -``Additional permissions'' are terms that supplement the terms of this -License by making exceptions from one or more of its conditions. -Additional permissions that are applicable to the entire Program shall -be treated as though they were included in this License, to the extent -that they are valid under applicable law. If additional permissions -apply only to part of the Program, that part may be used separately -under those permissions, but the entire Program remains governed by -this License without regard to the additional permissions. - -When you convey a copy of a covered work, you may at your option -remove any additional permissions from that copy, or from any part of -it. (Additional permissions may be written to require their own -removal in certain cases when you modify the work.) You may place -additional permissions on material, added by you to a covered work, -for which you have or can give appropriate copyright permission. - -Notwithstanding any other provision of this License, for material you -add to a covered work, you may (if authorized by the copyright holders -of that material) supplement the terms of this License with terms: - -@enumerate a -@item -Disclaiming warranty or limiting liability differently from the terms -of sections 15 and 16 of this License; or - -@item -Requiring preservation of specified reasonable legal notices or author -attributions in that material or in the Appropriate Legal Notices -displayed by works containing it; or - -@item -Prohibiting misrepresentation of the origin of that material, or -requiring that modified versions of such material be marked in -reasonable ways as different from the original version; or - -@item -Limiting the use for publicity purposes of names of licensors or -authors of the material; or - -@item -Declining to grant rights under trademark law for use of some trade -names, trademarks, or service marks; or - -@item -Requiring indemnification of licensors and authors of that material by -anyone who conveys the material (or modified versions of it) with -contractual assumptions of liability to the recipient, for any -liability that these contractual assumptions directly impose on those -licensors and authors. -@end enumerate - -All other non-permissive additional terms are considered ``further -restrictions'' within the meaning of section 10. If the Program as you -received it, or any part of it, contains a notice stating that it is -governed by this License along with a term that is a further -restriction, you may remove that term. If a license document contains -a further restriction but permits relicensing or conveying under this -License, you may add to a covered work material governed by the terms -of that license document, provided that the further restriction does -not survive such relicensing or conveying. - -If you add terms to a covered work in accord with this section, you -must place, in the relevant source files, a statement of the -additional terms that apply to those files, or a notice indicating -where to find the applicable terms. - -Additional terms, permissive or non-permissive, may be stated in the -form of a separately written license, or stated as exceptions; the -above requirements apply either way. - -@item Termination. - -You may not propagate or modify a covered work except as expressly -provided under this License. Any attempt otherwise to propagate or -modify it is void, and will automatically terminate your rights under -this License (including any patent licenses granted under the third -paragraph of section 11). - -However, if you cease all violation of this License, then your license -from a particular copyright holder is reinstated (a) provisionally, -unless and until the copyright holder explicitly and finally -terminates your license, and (b) permanently, if the copyright holder -fails to notify you of the violation by some reasonable means prior to -60 days after the cessation. - -Moreover, your license from a particular copyright holder is -reinstated permanently if the copyright holder notifies you of the -violation by some reasonable means, this is the first time you have -received notice of violation of this License (for any work) from that -copyright holder, and you cure the violation prior to 30 days after -your receipt of the notice. - -Termination of your rights under this section does not terminate the -licenses of parties who have received copies or rights from you under -this License. If your rights have been terminated and not permanently -reinstated, you do not qualify to receive new licenses for the same -material under section 10. - -@item Acceptance Not Required for Having Copies. - -You are not required to accept this License in order to receive or run -a copy of the Program. Ancillary propagation of a covered work -occurring solely as a consequence of using peer-to-peer transmission -to receive a copy likewise does not require acceptance. However, -nothing other than this License grants you permission to propagate or -modify any covered work. These actions infringe copyright if you do -not accept this License. Therefore, by modifying or propagating a -covered work, you indicate your acceptance of this License to do so. - -@item Automatic Licensing of Downstream Recipients. - -Each time you convey a covered work, the recipient automatically -receives a license from the original licensors, to run, modify and -propagate that work, subject to this License. You are not responsible -for enforcing compliance by third parties with this License. - -An ``entity transaction'' is a transaction transferring control of an -organization, or substantially all assets of one, or subdividing an -organization, or merging organizations. If propagation of a covered -work results from an entity transaction, each party to that -transaction who receives a copy of the work also receives whatever -licenses to the work the party's predecessor in interest had or could -give under the previous paragraph, plus a right to possession of the -Corresponding Source of the work from the predecessor in interest, if -the predecessor has it or can get it with reasonable efforts. - -You may not impose any further restrictions on the exercise of the -rights granted or affirmed under this License. For example, you may -not impose a license fee, royalty, or other charge for exercise of -rights granted under this License, and you may not initiate litigation -(including a cross-claim or counterclaim in a lawsuit) alleging that -any patent claim is infringed by making, using, selling, offering for -sale, or importing the Program or any portion of it. - -@item Patents. - -A ``contributor'' is a copyright holder who authorizes use under this -License of the Program or a work on which the Program is based. The -work thus licensed is called the contributor's ``contributor version''. - -A contributor's ``essential patent claims'' are all patent claims owned -or controlled by the contributor, whether already acquired or -hereafter acquired, that would be infringed by some manner, permitted -by this License, of making, using, or selling its contributor version, -but do not include claims that would be infringed only as a -consequence of further modification of the contributor version. For -purposes of this definition, ``control'' includes the right to grant -patent sublicenses in a manner consistent with the requirements of -this License. - -Each contributor grants you a non-exclusive, worldwide, royalty-free -patent license under the contributor's essential patent claims, to -make, use, sell, offer for sale, import and otherwise run, modify and -propagate the contents of its contributor version. - -In the following three paragraphs, a ``patent license'' is any express -agreement or commitment, however denominated, not to enforce a patent -(such as an express permission to practice a patent or covenant not to -sue for patent infringement). To ``grant'' such a patent license to a -party means to make such an agreement or commitment not to enforce a -patent against the party. - -If you convey a covered work, knowingly relying on a patent license, -and the Corresponding Source of the work is not available for anyone -to copy, free of charge and under the terms of this License, through a -publicly available network server or other readily accessible means, -then you must either (1) cause the Corresponding Source to be so -available, or (2) arrange to deprive yourself of the benefit of the -patent license for this particular work, or (3) arrange, in a manner -consistent with the requirements of this License, to extend the patent -license to downstream recipients. ``Knowingly relying'' means you have -actual knowledge that, but for the patent license, your conveying the -covered work in a country, or your recipient's use of the covered work -in a country, would infringe one or more identifiable patents in that -country that you have reason to believe are valid. - -If, pursuant to or in connection with a single transaction or -arrangement, you convey, or propagate by procuring conveyance of, a -covered work, and grant a patent license to some of the parties -receiving the covered work authorizing them to use, propagate, modify -or convey a specific copy of the covered work, then the patent license -you grant is automatically extended to all recipients of the covered -work and works based on it. - -A patent license is ``discriminatory'' if it does not include within the -scope of its coverage, prohibits the exercise of, or is conditioned on -the non-exercise of one or more of the rights that are specifically -granted under this License. You may not convey a covered work if you -are a party to an arrangement with a third party that is in the -business of distributing software, under which you make payment to the -third party based on the extent of your activity of conveying the -work, and under which the third party grants, to any of the parties -who would receive the covered work from you, a discriminatory patent -license (a) in connection with copies of the covered work conveyed by -you (or copies made from those copies), or (b) primarily for and in -connection with specific products or compilations that contain the -covered work, unless you entered into that arrangement, or that patent -license was granted, prior to 28 March 2007. - -Nothing in this License shall be construed as excluding or limiting -any implied license or other defenses to infringement that may -otherwise be available to you under applicable patent law. - -@item No Surrender of Others' Freedom. - -If conditions are imposed on you (whether by court order, agreement or -otherwise) that contradict the conditions of this License, they do not -excuse you from the conditions of this License. If you cannot convey -a covered work so as to satisfy simultaneously your obligations under -this License and any other pertinent obligations, then as a -consequence you may not convey it at all. For example, if you agree -to terms that obligate you to collect a royalty for further conveying -from those to whom you convey the Program, the only way you could -satisfy both those terms and this License would be to refrain entirely -from conveying the Program. - -@item Use with the GNU Affero General Public License. - -Notwithstanding any other provision of this License, you have -permission to link or combine any covered work with a work licensed -under version 3 of the GNU Affero General Public License into a single -combined work, and to convey the resulting work. The terms of this -License will continue to apply to the part which is the covered work, -but the special requirements of the GNU Affero General Public License, -section 13, concerning interaction through a network will apply to the -combination as such. - -@item Revised Versions of this License. - -The Free Software Foundation may publish revised and/or new versions -of the GNU General Public License from time to time. Such new -versions will be similar in spirit to the present version, but may -differ in detail to address new problems or concerns. - -Each version is given a distinguishing version number. If the Program -specifies that a certain numbered version of the GNU General Public -License ``or any later version'' applies to it, you have the option of -following the terms and conditions either of that numbered version or -of any later version published by the Free Software Foundation. If -the Program does not specify a version number of the GNU General -Public License, you may choose any version ever published by the Free -Software Foundation. - -If the Program specifies that a proxy can decide which future versions -of the GNU General Public License can be used, that proxy's public -statement of acceptance of a version permanently authorizes you to -choose that version for the Program. - -Later license versions may give you additional or different -permissions. However, no additional obligations are imposed on any -author or copyright holder as a result of your choosing to follow a -later version. - -@item Disclaimer of Warranty. - -THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY -APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT -HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT -WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND -PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE -DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR -CORRECTION. - -@item Limitation of Liability. - -IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR -CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, -INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES -ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT -NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR -LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM -TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER -PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - -@item Interpretation of Sections 15 and 16. - -If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. - -@end enumerate - -@heading END OF TERMS AND CONDITIONS - -@heading How to Apply These Terms to Your New Programs - -If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these -terms. - -To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -state the exclusion of warranty; and each file should have at least -the ``copyright'' line and a pointer to where the full notice is found. - -@smallexample -@var{one line to give the program's name and a brief idea of what it does.} -Copyright (C) @var{year} @var{name of author} - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or (at -your option) any later version. - -This program is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program. If not, see @url{http://www.gnu.org/licenses/}. -@end smallexample - -Also add information on how to contact you by electronic and paper mail. - -If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - -@smallexample -@var{program} Copyright (C) @var{year} @var{name of author} -This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}. -This is free software, and you are welcome to redistribute it -under certain conditions; type @samp{show c} for details. -@end smallexample - -The hypothetical commands @samp{show w} and @samp{show c} should show -the appropriate parts of the General Public License. Of course, your -program's commands might be different; for a GUI interface, you would -use an ``about box''. - -You should also get your employer (if you work as a programmer) or school, -if any, to sign a ``copyright disclaimer'' for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -@url{http://www.gnu.org/licenses/}. - -The GNU General Public License does not permit incorporating your -program into proprietary programs. If your program is a subroutine -library, you may consider it more useful to permit linking proprietary -applications with the library. If this is what you want to do, use -the GNU Lesser General Public License instead of this License. But -first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}. diff --git a/src/adjbacklight.auto-completion b/src/adjbacklight.auto-completion deleted file mode 100644 index a06884f..0000000 --- a/src/adjbacklight.auto-completion +++ /dev/null @@ -1,17 +0,0 @@ -(adjbacklight - (unargumented (options -c --copyright --copying) (complete --copying) - (desc 'Display copyright information')) - - (unargumented (options -w --warranty) (complete --warranty) - (desc 'Display warranty disclaimer')) - - (unargumented (options -a --all) (complete --all) - (desc 'Run for all devices, including ACPI devices')) - - (unargumented (options -g --get) (complete --get) - (desc 'Get average brightness on devices')) - - (argumented (options -s --set) (complete --set) (files 'LEVEL[%]') (files -0) - (desc 'Set brightness on devices')) -) - diff --git a/src/adjbacklight.c b/src/adjbacklight.c deleted file mode 100644 index 455fb70..0000000 --- a/src/adjbacklight.c +++ /dev/null @@ -1,872 +0,0 @@ -/** - * adjbacklight – Convenient method for adjusting the backlight on your portable computer - * - * Copyright © 2012, 2013, 2014, 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <stdlib.h> -#include <stdio.h> -#include <termios.h> -#include <sys/ioctl.h> -#include <sys/wait.h> -#include <sys/types.h> -#include <unistd.h> -#include <dirent.h> -#include <string.h> -#include <limits.h> -#include <alloca.h> -#include <grp.h> -#include <pwd.h> - - - -#ifndef PATH_MAX -#warning PATH_MAX is not defined -#define PATH_MAX 4096 -#endif - - - -/** - * The years this software has been developed - */ -#define _YEARS_ "2012, 2013, 2014" - - -/** - * Forking method - */ -#ifndef FORK -#define FORK fork -#endif - - -/** - * The directory where the backlight devices are found and configured - */ -#ifndef BACKLIGHT_DIR -#define BACKLIGHT_DIR "/sys/class/backlight" -#endif - - -/** - * Print a line to stdout - * - * @param S:const char* The string to print - */ -#define P(S) printf("%s", S "\n") - - -/** - * Cut a string of at the first line break - * A help `int` named `i` must be available - * - * @param data:char* The string, it will be modified - * @return :char* The input string, it has been modified - */ -#define unnl(data) \ - ({ \ - for (i = 0; *(data + i); i++) \ - if (*(data + i) == '\n') \ - *(data + i) = 0; \ - data; \ - }) - - - -/** - * Test whether a string numerical and with at most two trailing '%' - * - * @param str The string - * @return Whether the test passed - */ -static int isnumerical(const char* str); - -/** - * Interactively adjust the backlight on a device - * - * @param cols The number of columns on the terminal - * @param device The device on which to adjust backlight - */ -static void adjust(int cols, const char* device); - -/** - * Gets the current backlight setting on a device - * - * @param device The device from which to get backlight - * @return The brightness as a [0; 1] float, negative on error - */ -static float getbrightness(const char* device); - -/** - * Sets the current backlight setting on a device - * - * @param device The device from which to get backlight - * @param adjustment The adjustment to make - */ -static void setbrightness(const char* device, const char* adjustment); - -/** - * Read a file - * - * @param output Buffer to store the file's content in - * @param file The file to read - * @return Zero on success, non-zero on failure - */ -static int readfile(char* output, const char* file); - -/** - * Write an integer to a file - * - * @param buffer Buffer for temporary data - * @param integer The integer to write - * @param file The file to which to write - * @return Zero on success, non-zero on failure - */ -static int writefile(char* buffer, int integer, const char* file); - -/** - * Print the status - * - * @param min The minimum possible brightness - * @param max The maximum possible brightness - * @param init The brightness used when the program started - * @param cur The current brightness - * @param cols The number of columns on the terminal - */ -static void bars(int min, int max, int init, int cur, int cols); - - - -/** - * A series of spaces used to print the bar - */ -static char* space; - -/** - * A series of vertical lines used to print the bar - */ -static char* line; - - - -/** - * This is the mane entry point of the program - * - * @param argc The number of elements in `argv` - * @parma argv Command line arguments, including the command - * @return Exit value, zero on success - */ -int main(int argc, char** argv) -{ - struct winsize win; - struct termios saved_stty; - struct termios stty; - size_t i, ndevices = 0; - pid_t pid = 0; - char* set = NULL; - int j, get = 0, help = 0, all = 0, cols = 80; - char** devices = alloca((size_t)argc * sizeof(char*)); - - - if (argc > 1) - { - char* arg; - for (i = 1; i < (size_t)argc; i++) - { - #define T(S) (!strcmp(arg, S)) - arg = *(argv + i); - if (T("-h") || T("--help")) - help = 1; - else if (T("-a") || T("--all")) - all = 1; - else if (T("-c") || T("--copyright") || T("--copying")) - { - P("\n"); - P("adjbacklight – Convenient method for adjusting the backlight on your portable computer"); - P(""); - P("Copyright © " _YEARS_ " Mattias Andrée (maandree@member.fsf.org)"); - P(""); - P("This program is free software: you can redistribute it and/or modify"); - P("it under the terms of the GNU General Public License as published by"); - P("the Free Software Foundation, either version 3 of the License, or"); - P("(at your option) any later version."); - P(""); - P("This program is distributed in the hope that it will be useful,"); - P("but WITHOUT ANY WARRANTY; without even the implied warranty of"); - P("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the"); - P("GNU General Public License for more details."); - P(""); - P("You should have received a copy of the GNU General Public License"); - P("along with this program. If not, see <http://www.gnu.org/licenses/>."); - P("\n"); - return 0; - } - else if (T("-w") || T("--warranty")) - { - P("\n"); - P("This program is distributed in the hope that it will be useful,"); - P("but WITHOUT ANY WARRANTY; without even the implied warranty of"); - P("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the"); - P("GNU General Public License for more details."); - P("\n"); - return 0; - } - else if (T("-s") || T("--set")) - { - char* tmp; - if (i + 1 == (size_t)argc) - fprintf(stderr, "%s: argument for option %s is missing, ignoring option\n", *argv, arg); - else - if (!isnumerical(tmp = *(argv + ++i))) - fprintf(stderr, "%s: argument for option %s is malformated, ignoring option\n", *argv, arg); - else - { - set = tmp; - get = 0; - } - } - else if (T("-g") || T("--get")) - { - get = 1; - set = NULL; - } - else if (((*arg == '-') || (*arg == '+') || (*arg == '=')) && isnumerical(arg + 1)) - { - set = arg; - get = 0; - } - else - { - if (*arg && (*arg != '-')) - *(devices + ndevices++) = arg; - else - fprintf(stderr, "%s: ignoring unrecognised argument: %s\n", *argv, arg); - } - #undef T - } - fflush(stderr); - if (help || (((size_t)all + ndevices + (size_t)get == 0) && !set)) - { - P("\n"); - P("adjbacklight - Convenient method for adjusting the backlight on your portable computer"); - P(""); - P("USAGE: adjbacklight (-c | -w | [-g | -s LEVEL | LEVEL] [-a | DEVICE...])"); - P(""); - P("Run with options to adjust the backlight on your monitors."); - P(""); - P(""); - P("OPTIONS:"); - P(""); - P("-c"); - P("--copyright"); - P("--copying Display copyright information"); - P(""); - P("-w"); - P("--warranty Display warranty disclaimer"); - P(""); - P("-a"); - P("--all Run for all devices, including ACPI devices"); - P(""); - P("-g"); - P("--get Get average brightness on devices"); - P(""); - P("-s"); - P("--set LEVEL[%] Set brightness on devices"); - P(""); - P("+LEVEL Increase brightness on devices by actual value"); - P("-LEVEL Decrease brightness on devices by actual value"); - P("=LEVEL Set brightness on devices by actual value"); - P(""); - P("+LEVEL% Increase brightness on devices by percentage-points"); - P("-LEVEL% Decrease brightness on devices by percentage-points"); - P("=LEVEL% Set brightness on devices by percentage-points"); - P(""); - P("+LEVEL%% Increase brightness on devices by percentage"); - P("-LEVEL%% Decrease brightness on devices by percentage"); - P("=LEVEL%% Set brightness on devices by percentage"); - P(""); - P(""); - P("KEYBOARD:"); - P(""); - P("←"); - P("↓ Darken the screen"); - P(""); - P("→"); - P("↑ Brighten the screen"); - P(""); - P("q"); - P("enter"); - P("C-d Continue to next controller, or if at last, quit"); - P(""); - P(""); - P(""); - P("Copyright © " _YEARS_ " Mattias Andrée (maandree@member.fsf.org)"); - P(""); - P("This program is free software: you can redistribute it and/or modify"); - P("it under the terms of the GNU General Public License as published by"); - P("the Free Software Foundation, either version 3 of the License, or"); - P("(at your option) any later version."); - P(""); - return 0; - } - } - - - /* Check permissions */ - if (getuid()) /* Always accept root */ - { - struct group* video_grp = getgrnam("video"); - if (video_grp) /* Accept everypony if the group ‘video’ does not exist */ - { - struct passwd* realuser = getpwuid(getuid()); - char** mems; - char* realname; - int ok; - if (!realuser) - { - P("You do not exist, go away!"); - return 1; - } - mems = video_grp->gr_mem; - realname = realuser->pw_name; - ok = 0; - for (; *mems; mems++) - if (!strcmp(realname, *mems)) - { - ok = 1; - break; - } - endgrent(); - if (!ok) - { - P("Sorry, you need to be in the group 'video'."); - return 1; - } - } - endpwent(); - } - - - if (!get && !set) - { - P("\n"); - P("If the program is abnormally aborted the may be some residual"); - P("effects on the terminal. the following commands should reset it:"); - P(""); - P(" stty icanon echo"); - P(" echo -en '\\e[?25h'"); - P(""); - P("\n\n\n"); - } - - - if (!get && !set) - { - /* Get the size of the terminal */ - if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1) - perror(*argv); - else - cols = win.ws_col; - - /* Hide cursor */ - printf("%s", "\033[?25l"); - fflush(stdout); - - /* stty -icanon -echo */ - if (tcgetattr(STDIN_FILENO, &stty)) - { - perror(*argv); - return 1; - } - saved_stty = stty; - stty.c_lflag &= (tcflag_t)~(ICANON | ECHO); - if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &stty)) - { - perror(*argv); - return 1; - } - } - - - /* Fork to diminish risk of unclean exit */ - if (!get && !set) - { - pid = FORK(); - if (pid == (pid_t)-1) - { - perror(*argv); - pid = 0; - } - } - - if (pid) - waitpid(pid, NULL, 0); - else - { - float brightness = 0; - int nbrightness = 0; - - if (!get && !set) - { - line = malloc((size_t)cols * 3 * sizeof(char)); - space = malloc((size_t)cols * sizeof(char)); - for (i = 0; i < (size_t)cols; i++) - { - *(line + i * 3 + 0) = (char)(0xE2); - *(line + i * 3 + 1) = (char)(0x94); - *(line + i * 3 + 2) = (char)(0x80); - *(space + i) = ' '; - } - *(space + cols - 1) = 0; - *(line + (cols - 2) * 3) = 0; - } - - if (ndevices) - { - char* device; - for (i = 0; i < ndevices; i++) - { - device = *(devices + i); - for (j = 0; *(device + j); j++) - if (*(device + j) == '/') - { - device += j + 1; - j = -1; - } - if (get) - { - float value = getbrightness(device); - if (value >= 0.f) - { - brightness += value; - nbrightness++; - } - } - else if (set) - setbrightness(device, set); - else - adjust(cols, device); - } - } - else - { - struct dirent* ent; - DIR* dir = opendir(BACKLIGHT_DIR); - if (dir) - { - char* device; - while ((ent = readdir(dir))) - { - device = ent->d_name; - if (all || (strstr(device, "acpi_video") != device)) - if (*device && (*device != '.')) - { - if (get) - { - float value = getbrightness(device); - if (value >= 0.f) - { - brightness += value; - nbrightness++; - } - } - else if (set) - setbrightness(device, set); - else - adjust(cols, device); - } - } - closedir(dir); - } - } - - if (!get && !set) - { - free(line); - free(space); - } - else if (get) - { - if (nbrightness) - { - brightness *= 100.f; - brightness /= (float)nbrightness; - printf("%.2f%%\n", (double)brightness); - fflush(stdout); - } - else - { - printf("%s\n", "100.00%"); - fflush(stdout); - } - } - } - - - if (!get && !set) - { - /* `stty icanon echo` */ - if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &saved_stty)) - { - perror(*argv); - return 1; - } - - /* Show cursor */ - printf("%s", "\033[?25h"); - fflush(stdout); - } - - return 0; -} - - -/** - * Test whether a string numerical and with at most two trailing '%' - * - * @param str The string - * @return Whether the test passed - */ -static int isnumerical(const char* str) -{ - int p = 0, d = 0; - if ((*str == 0) || (*str == '%')) - return 0; - for (; *str; str++) - { - switch (*str) - { - case '.': - if (d++) - return 0; - /* fall through */ - case '0' ... '9': - if (p) - return 0; - break; - - case '%': - p++; - break; - - default: - return 0; - } - } - return p <= 2; -} - - -/** - * Interactively adjust the backlight on a device - * - * @param cols The number of columns on the terminal - * @param device The device on which to adjust backlight - */ -static void adjust(int cols, const char* device) -{ - int min, max, cur, step, init, i, d; - size_t lendir; - char* dir = alloca(PATH_MAX * sizeof(char)); - char* buf = alloca(256 * sizeof(char)); - - *dir = 0; - dir = strcat(dir, BACKLIGHT_DIR "/"); - dir = strcat(dir, device); - dir = strcat(dir, "/"); - lendir = strlen(dir); - - /* Get brightness parameters */ - min = 0; - if (readfile(buf, strcat(dir, "max_brightness"))) - return; - max = atoi(unnl(buf)); - *(dir + lendir) = 0; - if (readfile(buf, strcat(dir, "brightness"))) - return; - cur = atoi(unnl(buf)); - - if (max <= min) - return; /* what the buck */ - - step = (max - min) / 200 ?: 1; - init = cur; - - P("\n\n\n\n\n"); - bars(min, max, init, cur, cols); - - while ((d = getchar()) != -1) - switch (d) - { - case 'q': - case '\n': - case 4: - P(""); - return; - - case 'A': - case 'C': - cur += step << 1; - /* fall through */ - case 'B': - case 'D': - cur -= step; - if (cur < min) cur = min; - if (cur > max) cur = max; - if (writefile(buf, cur, dir)) - return; - bars(min, max, init, cur, cols); - } -} - - - -/** - * Gets the current backlight setting on a device - * - * @param device The device from which to get backlight - * @return The brightness as a [0; 1] float, negative on error - */ -static float getbrightness(const char* device) -{ - int min, max, cur, i; - size_t lendir; - char* dir = alloca(PATH_MAX * sizeof(char)); - char* buf = alloca(256); - - *dir = 0; - dir = strcat(dir, BACKLIGHT_DIR "/"); - dir = strcat(dir, device); - dir = strcat(dir, "/"); - lendir = strlen(dir); - - /* Get brightness parameters */ - min = 0; - if (readfile(buf, strcat(dir, "max_brightness"))) - return -1.f; - max = atoi(unnl(buf)); - *(dir + lendir) = 0; - if (readfile(buf, strcat(dir, "brightness"))) - return -1.f; - cur = atoi(unnl(buf)); - - if (max <= min) - return -1.f; /* what the buck */ - - return (float)cur / (float)(max - min); -} - - - -/** - * Sets the current backlight setting on a device - * - * @param device The device from which to get backlight - * @param adjustment The adjustment to make - */ -static void setbrightness(const char* device, const char* adjustment) -{ - int min, max, cur, i, adj; - size_t lendir; - char* dir = alloca(PATH_MAX * sizeof(char)); - char* buf = alloca(256); - int act = 0, integer = 0, decimal = 0, p = 0, d = 0; - - *dir = 0; - dir = strcat(dir, BACKLIGHT_DIR "/"); - dir = strcat(dir, device); - dir = strcat(dir, "/"); - lendir = strlen(dir); - - /* Get brightness parameters */ - min = 0; - if (readfile(buf, strcat(dir, "max_brightness"))) - return; - max = atoi(unnl(buf)); - *(dir + lendir) = 0; - if (readfile(buf, strcat(dir, "brightness"))) - return; - cur = atoi(unnl(buf)); - - if (max <= min) - return; /* what the buck */ - - /* Read -/+/= head */ - if (*adjustment == '-') - act = -1; - else if (*adjustment == '+') - act = 1; - else if (*adjustment != '=') - adjustment--; - adjustment++; - - /* Parse numerical part */ - for (; *adjustment && (*adjustment != '%'); adjustment++) - if (*adjustment == '.') - d = 1; - else if (d) - { - if ((long long)d * 10 > (long long)INT_MAX) - continue; - if ((long long)decimal * 10 + 9 > (long long)INT_MAX) - continue; - d *= 10; - decimal *= 10; - decimal += (*adjustment) - '0'; - } - else - { - integer *= 10; - integer += (*adjustment) - '0'; - } - if (!d) - d = 1; - - /* Count number of p:s */ - while (*adjustment++) - p++; - - /* Calculate value to send */ - if (p == 0) - adj = integer + (int)((double)decimal / (double)d + 0.5d); - else if (p == 1) - adj = (int)(((double)integer + (double)decimal / (double)d) * (double)(max - min) / 100.d); - else - adj = (int)(((double)integer + (double)decimal / (double)d) * (double)cur / 100.d); - adj = (act & 1) * cur + (act | 1) * adj; - if (adj < min) adj = min; - if (adj > max) adj = max; - - /* Send value */ - writefile(buf, adj, dir); -} - - - -/** - * Read a file - * - * @param output Buffer to store the file's content in - * @param file The file to read - * @return Zero on success, non-zero on failure - */ -static int readfile(char* output, const char* file) -{ - #define BLOCK_SIZE 256 /* We will not even encounter that much */ - FILE* f; - size_t got, have = 0; - int ended = 0; - - if ((f = fopen(file, "r")) == NULL) - { - perror(file); - return -1; - } - - while (!ended) - { - got = fread(output + have, 1, BLOCK_SIZE, f); - if (got != BLOCK_SIZE) - { - ended = feof(f); - have += got; - clearerr(f); - fclose(f); - if (!ended) - { - perror(file); - return -1; - } - } - else - have += got; - } - - *(output + have) = 0; - return 0; -} - - - -/** - * Write an integer to a file - * - * @param buffer Buffer for temporary data - * @param integer The integer to write - * @param file The file to which to write - * @return Zero on success, non-zero on failure - */ -static int writefile(char* buffer, int integer, const char* file) -{ - FILE* f; - size_t n = 0; - - buffer += 32; - do - { - *(buffer - n++) = (char)((integer % 10) + '0'); - integer /= 10; - } - while (integer); - buffer -= n - 1; - *(buffer + n++) = '\n'; - - if ((f = fopen(file, "w")) == NULL) - { - perror(file); - return -1; - } - - if (fwrite(buffer, 1, n, f) != n) - { - perror(file); - fclose(f); - return -1; - } - - fflush(f); - fclose(f); - return 0; -} - - - -/** - * Print the status - * - * @param min The minimum possible brightness - * @param max The maximum possible brightness - * @param init The brightness used when the program started - * @param cur The current brightness - * @param cols The number of columns on the terminal - */ -static void bars(int min, int max, int init, int cur, int cols) -{ - int mid = (int)((float)(cur - min) * (float)(cols - 2) / (float)(max - min) + 0.5f); - - printf("\033[1000D\033[6A"); - printf("\033[2K┌%s┐\n", line); - *(space + mid) = 0; - printf("\033[2K│\033[47m%s\033[49m%s│\n", space, space + mid + 1); - *(space + mid) = ' '; - printf("\033[2K└%s┘\n", line); - printf("\033[2KMaximum brightness: %i\n", max); - printf("\033[2KInitial brightness: %i\n", init); - printf("\033[2KCurrent brightness: %i\n", cur); - - fflush(stdout); -} - |