diff options
| author | Mattias Andrée <maandree@kth.se> | 2021-02-23 15:23:30 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2021-02-23 15:23:30 +0100 |
| commit | 6ef03dcaee546215c8e5fc15fdeac43689b63f7b (patch) | |
| tree | fa1dfdf2d1122446745f60f72c9b04da7acb487a | |
| parent | remove dist (diff) | |
| download | setpgrp-6ef03dcaee546215c8e5fc15fdeac43689b63f7b.tar.gz setpgrp-6ef03dcaee546215c8e5fc15fdeac43689b63f7b.tar.bz2 setpgrp-6ef03dcaee546215c8e5fc15fdeac43689b63f7b.tar.xz | |
Change license, add man pages, misc2
Signed-off-by: Mattias Andrée <maandree@kth.se>
| -rw-r--r-- | .gitignore | 14 | ||||
| -rw-r--r-- | COPYING | 16 | ||||
| -rw-r--r-- | LICENSE | 683 | ||||
| -rw-r--r-- | Makefile | 122 | ||||
| -rw-r--r-- | README | 21 | ||||
| -rw-r--r-- | arg.h | 45 | ||||
| -rw-r--r-- | config.mk | 6 | ||||
| -rw-r--r-- | getpgrp.1 | 89 | ||||
| -rw-r--r-- | getpgrp.c | 34 | ||||
| -rw-r--r-- | setpgrp.1 | 142 | ||||
| -rw-r--r-- | setpgrp.c | 82 | ||||
| -rw-r--r-- | src/getpgrp.c | 28 | ||||
| -rw-r--r-- | src/setpgrp.c | 98 |
13 files changed, 460 insertions, 920 deletions
@@ -1,14 +1,6 @@ -_/ -bin/ -obj/ -\#*\# -.* +*\# *~ -!.git* -*.sw[op] -*.bak *.o -*.out *.su -*.gch - +/getpgrp +/setpgrp diff --git a/COPYING b/COPYING deleted file mode 100644 index b4b0d6e..0000000 --- a/COPYING +++ /dev/null @@ -1,16 +0,0 @@ -setpgrep — run a program in a new process group -Copyright © 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/>. - @@ -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. +© 2014, 2021 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. @@ -1,108 +1,40 @@ -# 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. +.POSIX: +CONFIGFILE = config.mk +include $(CONFIGFILE) -# The package path prefix, if you want to install to another root, set DESTDIR to that root. -PREFIX ?= /usr -# The command path excluding prefix. -BIN ?= /bin -# The library path excluding prefix. -LIB ?= /lib -# The executable library path excluding prefix. -LIBEXEC ?= /libexec -# The resource path excluding prefix. -DATA ?= /share -# The command path including prefix. -BINDIR ?= $(PREFIX)$(BIN) -# The library path including prefix. -LIBDIR ?= $(PREFIX)$(LIB) -# The executable library path including prefix. -LIBEXECDIR ?= $(PREFIX)$(LIBEXEC) -# The resource path including prefix. -DATADIR ?= $(PREFIX)$(DATA) -# The generic documentation path including prefix. -DOCDIR ?= $(DATADIR)/doc -# The info manual documentation path including prefix. -INFODIR ?= $(DATADIR)/info -# The license base path including prefix. -LICENSEDIR ?= $(DATADIR)/licenses +BIN = getpgrp setpgrp +OBJ = $(@:=.o) +MAN = $(@:=.1) +HDR = arg.h -# The name of the package as it should be installed. -PKGNAME ?= setpgrp +all: $(BIN) +$(OBJ): $(@:.o=.c) $(HDR) -# Optimisation level (and debug flags.) -OPTIMISE = -Og -g +getpgrp: getpgrp.o + $(CC) -o $@ $@.o $(LDFLAGS) -# Enabled Warnings. -WARN = -Wall -Wextra -pedantic -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 -Wsign-conversion \ - -Wswitch-default -Wconversion -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 +setpgrp: setpgrp.o + $(CC) -o $@ $@.o $(LDFLAGS) -# The C standard used in the code. -STD = gnu99 +.c.o: + $(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS) -# Options for the C compiler. -C_FLAGS = $(OPTIMISE) $(WARN) -std=$(STD) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) \ - -ftree-vrp -fstrict-aliasing -fipa-pure-const -fstack-usage \ - -fstrict-overflow -funsafe-loop-optimizations -fno-builtin +install: $(BIN) + mkdir -p -- "$(DESTDIR)$(PREFIX)/bin" + mkdir -p -- "$(DESTDIR)$(MANPREFIX)/man1" + cp -- $(BIN) "$(DESTDIR)$(PREFIX)/bin/" + cp -- $(MAN) "$(DESTDIR)$(MANPREFIX)/man1/" - - -.PHONY: all -all: getpgrp setpgrp - -.PHONY: getpgrp setpgrp -getpgrp: bin/getpgrp -setpgrp: bin/setpgrp - -bin/%: src/%.c - @mkdir -p bin - $(CC) $(C_FLAGS) -o $@ $^ - - -.PHONY: install -install: install-commands install-license - -.PHONY: install-commands -install-commands: install-getpgrp install-setpgrp - -.PHONY: install-getpgrp -install-getpgrp: bin/getpgrp - install -dm755 -- "$(DESTDIR)$(BINDIR)" - install -m755 $< -- "$(DESTDIR)$(BINDIR)/getpgrp" - -.PHONY: install-setpgrp -install-setpgrp: bin/setpgrp - install -dm755 -- "$(DESTDIR)$(BINDIR)" - install -m755 $< -- "$(DESTDIR)$(BINDIR)/setpgrp" - -.PHONY: install-license -install-license: - install -dm755 -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - install -m644 COPYING LICENSE -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - - -.PHONY: uninstall uninstall: - -rm -- "$(DESTDIR)$(BINDIR)/getpgrp" - -rm -- "$(DESTDIR)$(BINDIR)/setpgrp" - -rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/COPYING" - -rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/LICENSE" - -rmdir -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)" - + -cd -- "$(DESTDIR)$(PREFIX)/bin/" && rm -f -- $(BIN) + -cd -- "$(DESTDIR)$(MANPREFIX)/man1/" && rm -f -- $(MAN) -.PHONY: clean clean: - -rm -r -- bin *.su + -rm -rf -- $(BIN) *.o *.su + +.SUFFIXES: +.SUFFIXES: .o .c +.PHONY: all install uninstall clean @@ -1,2 +1,21 @@ -Commands providing access to the setpgrp and getpgrp system calls. +NAME + setpgrp - run a process in a new process group + getpgrp - get the current process group +SYNOPSIS + setpgrp [-e variable] [-pv] command [argument] ... + + getpgrp + +DESCRIPTION + The setpgrp utility runs a command in a new process + group, and optionally exports that process group + identifier to a user-specified environment variable + and optionally prints that process group identifier + to the standard output. + + The getpgrp utility prints the identifier of the + current process group to the standard output. + +SEE ALSO + setpgid(2), getpgrp(2) @@ -0,0 +1,45 @@ +/* + * 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][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_) + +#define ARGEND }\ + } else {\ + break;\ + }\ + } + +#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]))) + + +#endif diff --git a/config.mk b/config.mk new file mode 100644 index 0000000..58c0906 --- /dev/null +++ b/config.mk @@ -0,0 +1,6 @@ +PREFIX = /usr +MANPREFIX = $(PREFIX)/share/man + +CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 +CFLAGS = -std=c99 -Wall +LDFLAGS = diff --git a/getpgrp.1 b/getpgrp.1 new file mode 100644 index 0000000..17b0c00 --- /dev/null +++ b/getpgrp.1 @@ -0,0 +1,89 @@ +.TH GETPGRP 1 getpgrp + +.SH NAME +getpgrp - get the current process group + +.SH SYNOPSIS +.B getpgrp + +.SH DESCRIPTION +The +.B getpgrp +utility prints the identifier of the +current process group to the standard output. + +.SH OPTIONS +The +.B getpgrp +utility conforms to the Base Definitions volume of POSIX.1-2017, +.IR "Section 12.2" , +.IR "Utility Syntax Guidelines" . +.PP +No options are supported. + +.SH OPERANDS +No operands are supported. + +.SH STDIN +Not used. + +.SH INPUT FILES +None. + +.SH ENVIRONMENT VARIABLES +No environment variables affects the execution of +.BR getpgrp . + +.SH ASYNCHRONOUS EVENTS +Default. + +.SH STDOUT +The +.B getpgrp +utility prints the identifier of it's process group +to the standard output. + +.SH STDERR +The standard error is used for diagnostic messages. + +.SH OUTPUT FILES +None. + +.SH EXTENDED DESCRIPTION +None. + +.SH EXIT STATUS +If the +.B getpgrp +exits with one of the following statuses: +.TP +0 +Successful. +.TP +1 +A error occurred. + +.SH CONSEQUENCES OF ERRORS +Default. + +.SH APPLICATION USAGE +None. + +.SH EXAMPLES +None. + +.SH RATIONALE +None. + +.SH NOTES +None. + +.SH BUGS +None. + +.SH FUTURE DIRECTIONS +None. + +.SH SEE ALSO +.BR getpgrp (2), +.BR setpgrp (1) diff --git a/getpgrp.c b/getpgrp.c new file mode 100644 index 0000000..f3e9c81 --- /dev/null +++ b/getpgrp.c @@ -0,0 +1,34 @@ +/* See LICENSE file for copyright and license details. */ +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +#include "arg.h" + + +char *argv0; + +int +main(int argc, char *argv[]) +{ + ARGBEGIN { + default: + goto usage; + } ARGEND; + if (argc) + goto usage; + + printf("%ji\n", (intmax_t)getpgrp()); + if (fflush(stdout) || ferror(stdout) || fclose(stdout)) { + fprintf(stderr, "%s: printf: %s\n", argv0, strerror(errno)); + return 1; + } + + return 0; + +usage: + fprintf(stderr, "usage: %s\n", argv0); + return 1; +} diff --git a/setpgrp.1 b/setpgrp.1 new file mode 100644 index 0000000..2deb440 --- /dev/null +++ b/setpgrp.1 @@ -0,0 +1,142 @@ +.TH SETPGRP 1 setpgrp + +.SH NAME +setpgrp - run a process in a new process group + +.SH SYNOPSIS +.B setpgrp +[-e +.IR variable ] +[-pv] +.I command +.RI [ argument ]\ ... + +.SH DESCRIPTION +The +.B setpgrp +utility runs a command in a new process +group, and optionally exports that process group +identifier to a user-specified environment variable +and optionally prints that process group identifier +to the standard output. + +.SH OPTIONS +The +.B setpgrp +utility conforms to the Base Definitions volume of POSIX.1-2017, +.IR "Section 12.2" , +.IR "Utility Syntax Guidelines" . +.PP +The following option is supported: +.TP +.BI -e\ variable +Export the identifier of the new process group +to the specified environment +.IR variable . +.TP +.B -p +Print the identifier of the new process group +to the standard output. +.TP +.B -v +Print the identifier of the new process group +to the standard error as a normal diagnostic message. + +.SH OPERANDS +The following operands are supported: +.TP +.I command +The command that shall be run with as the root user. +This will be both the process image and the process's +zeroth command line argument. +.TP +.IR argument \ ... +Command line arguments for the command to run. + +.SH STDIN +The +.B setpgrp +utility does not use the standard input, however the +.I command +it starts may. + +.SH INPUT FILES +None. + +.SH ENVIRONMENT VARIABLES +The following environment variables affects the execution of +.BR setpgrp : +.TP +.SH PATH +Default. See to the Base Definitions volume of POSIX.1-2017, Section 8.3, Other Environment Variables. + +.SH ASYNCHRONOUS EVENTS +Default. + +.SH STDOUT +The +.B setpgrp +utility does not use the standard output unless the +.B -p +option is specified, however the +.I command +it starts may. + +.SH STDERR +The standard error is used for diagnostic messages and the +password prompt. The +.I command +the +.B setpgrp +utility starts may also use the standard error. + +.SH OUTPUT FILES +None. + +.SH EXTENDED DESCRIPTION +None. + +.SH EXIT STATUS +If the +.B setpgrp +utility fails it will exit withone of the following statuses: +.TP +125 +A error occurred. +.TP +126 +The process failed to change process image. +.TP +127 +The specified command was not found. +.PP +If the +.B setpgrp +utility is successful, the exit status is defined by the +.I command +it starts. + +.SH CONSEQUENCES OF ERRORS +Default. + +.SH APPLICATION USAGE +None. + +.SH EXAMPLES +None. + +.SH RATIONALE +None. + +.SH NOTES +None. + +.SH BUGS +None. + +.SH FUTURE DIRECTIONS +None. + +.SH SEE ALSO +.BR setpgid (2), +.BR getpgrp (1) diff --git a/setpgrp.c b/setpgrp.c new file mode 100644 index 0000000..1cb75fc --- /dev/null +++ b/setpgrp.c @@ -0,0 +1,82 @@ +/* See LICENSE file for copyright and license details. */ +#include <errno.h> +#include <stddef.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "arg.h" + +#define EXIT_ERROR 125 +#define EXIT_EXEC 126 +#define EXIT_NOENT 127 + + +char *argv0; + +static void +usage(void) +{ + fprintf(stderr, "usage: %s [-e variable] [-pv] command [argument] ...\n", argv0); + exit(EXIT_ERROR); +} + +int +main(int argc, char *argv[]) +{ + char group_str[3 * sizeof(pid_t) + 1]; + int print_to_stdout = 0; + int print_to_stderr = 0; + char *export = NULL; + pid_t group; + + ARGBEGIN { + case 'e': + export = EARGF(usage()); + if (!*export) + usage(); + break; + case 'p': + print_to_stdout = 1; + break; + case 'v': + print_to_stderr = 1; + break; + default: + usage(); + } ARGEND; + + if (!argc) + usage(); + + if (setpgid(0, 0)) { + fprintf(stderr, "%s: setpgid 0 0: %s\n", argv0, strerror(errno)); + return EXIT_ERROR; + } + group = getpgrp(); + + if (print_to_stdout) { + printf("%ji\n", (intmax_t)group); + if (fflush(stdout) || ferror(stdout)) { + fprintf(stderr, "%s: printf: %s\n", argv0, strerror(errno)); + return EXIT_ERROR; + } + } + + if (export) { + sprintf(group_str, "%ji", (intmax_t)group); + if (setenv(export, group_str, 1)) { + fprintf(stderr, "%s: setenv %s %s 1: %s\n", argv0, export, group_str, strerror(errno)); + return EXIT_ERROR; + } + } + + if (print_to_stderr) + fprintf(stderr, "%s: running %s in process group %ji\n", argv0, argv[0], (intmax_t)group); + + execvp(argv[0], argv); + fprintf(stderr, "%s: execvp %s: %s\n", argv0, argv[0], strerror(errno)); + return errno == ENOENT ? EXIT_NOENT : EXIT_EXEC; +} diff --git a/src/getpgrp.c b/src/getpgrp.c deleted file mode 100644 index 47dafcf..0000000 --- a/src/getpgrp.c +++ /dev/null @@ -1,28 +0,0 @@ -/** - * setpgrep — run a program in a new process group - * Copyright © 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/>. - */ -#include <unistd.h> -#include <stdio.h> -#include <stdint.h> - - -int main(void) -{ - pid_t group = getpgrp(); - return printf("%ji\n", (intmax_t)group) < 0; -} - diff --git a/src/setpgrp.c b/src/setpgrp.c deleted file mode 100644 index 0f76ea9..0000000 --- a/src/setpgrp.c +++ /dev/null @@ -1,98 +0,0 @@ -/** - * setpgrep — run a program in a new process group - * Copyright © 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/>. - */ -#include <unistd.h> -#include <stdio.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <stddef.h> - - -int main(int argc, char* argv[]) -{ - int switch_print = 0; - int switch_export = 0; - int switch_help = 0; - pid_t group; - char** args; - int off; - - for (off = 1; off < argc; off++) - if (!strcmp(argv[off], "--print")) - switch_print = 1; - else if (!strcmp(argv[off], "--export")) - { - switch_export = ++off; - if (off == argc) - goto help; - } - else if (!strcmp(argv[off], "--help")) - { - switch_help = 1; - goto help; - } - else if (!strcmp(argv[off], "--")) - { - off++; - break; - } - else if (argv[off][0] != '-') - break; - else - goto help; - - group = setpgid(0, 0); - if (group == (pid_t)-1) - goto fail; - group = getpgrp(); - - args = malloc((size_t)(argc - off + 1) * sizeof(char*)); - if (args == NULL) - goto fail; - - memcpy(args, argv + off, (size_t)(argc - off) * sizeof(char*)); - args[argc - off] = NULL; - - if (switch_print) - if (printf("%ji\n", (intmax_t)group) < 0) - goto fail; - - if (switch_export) - { - char group_str[3 * sizeof(pid_t) + 1]; - if (sprintf(group_str, "%ji", (intmax_t)group) < 0) - goto fail; - if (setenv(argv[switch_export], group_str, 1) < 0) - goto fail; - } - - execvp(args[0], args); - - fail: - perror(*argv); - return 1; - - help: - printf("USAGE: %s [options] [--] [command...]\n", *argv); - printf("\n"); - printf(" --print Print the process group to stdout.\n"); - printf(" --export VAR Export the process group to the ENV environment variable.\n"); - printf("\n"); - return !switch_help; -} - |