Improve style and license

Signed-off-by: Mattias Andrée <maandree@kth.se>

16 files changed, 155 insertions, 1692 deletions

diff --git a/.gitignore b/.gitignore
index 709e9e7..ad09778 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,15 +1,6 @@
-_/
-bin/
-obj/
-\#*\#
-.*
-!.git*
 *~
-*.bak
-*.swo
-*.swp
+*\#*
 *.o
 *.out
-*.gch
 *.su
-
+/alarm
diff --git a/COPYING b/COPYING
deleted file mode 100644
index 4229a8f..0000000
--- a/COPYING
+++ /dev/null
@@ -1,16 +0,0 @@
-alarm — Schedule an alarm for a program when starting it
-Copyright © 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/>.
-
diff --git a/DEPENDENCIES b/DEPENDENCIES
deleted file mode 100644
index 9556cd0..0000000
--- a/DEPENDENCIES
+++ /dev/null
@@ -1,18 +0,0 @@
-RUNTIME DEPENDENCIES:
-
-	libc
-
-
-BUILD DEPENDENCIES:
-
-	make
-	c99
-	libc
-	coreutils
-
-
-INSTALL DEPENDENCIES:
-
-	make
-	coreutils
-
diff --git a/LICENSE b/LICENSE
index 94a9ed0..06f2efb 100644
--- a/LICENSE
+++ b/LICENSE
@@ -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, 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.
 
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-  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.
diff --git a/Makefile b/Makefile
index 36c520c..cb907c3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,176 +1,38 @@
-# 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 resource path excluding prefix.
-DATA = /share
-# The command path including prefix.
-BINDIR = $(PREFIX)$(BIN)
-# The resource path including prefix.
-DATADIR = $(PREFIX)$(DATA)
-# The general documentation path including prefix.
-DOCDIR = $(DATADIR)/doc
-# The info manual path including prefix.
-INFODIR = $(DATADIR)/info
-# The man page path including prefix.
-MANDIR = $(DATADIR)/man
-# The man page section 1 path including prefix.
-MAN1DIR = $(MANDIR)/man1
-# The license base path including prefix.
-LICENSEDIR = $(DATADIR)/licenses
+all: alarm
 
-# The name of the package as it should be installed.
-PKGNAME = alarm
-# The name of the command as it should be installed.
-COMMAND = alarm
+alarm.o: alarm.c
+	$(CC) -c -o $@ alarm.c $(CCFLAGS) $(CPPFLAGS)
 
+alarm: alarm.o
+	$(CC) -o $@ alarm.o $(LDFLAGS)
 
-# Optimisation level (and debug flags.)
-OPTIMISE = -Og -g
+check: alarm
+	alarm 1 sleep 2 & a=$$! ;\
+	alarm 1s sleep 2 & b=$$! ;\
+	alarm 0h2s sleep 1 & c=$$! ;\
+	{ ! wait $$a; } && { ! wait $$b; } && { wait $$c; }
 
-# 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
-
-# The C standard used in the code.
-STD = c99
-
-
-
-.PHONY: default
-default: command info
-
-.PHONY: all
-all: command doc
-
-.PHONY: base
-base: command
-
-.PHONY: command
-command: bin/alarm
-
-bin/alarm: obj/alarm.o
-	@mkdir -p bin
-	$(CC) $(WARN) -std=$(STD) $(OPTIMISE) $(LDFLAGS) -o $@ $^
-
-obj/%.o: src/%.c
-	@mkdir -p obj
-	$(CC) $(WARN) -std=$(STD) $(OPTIMISE) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
-
-.PHONY: doc
-doc: info pdf dvi ps
-
-.PHONY: info
-info: bin/alarm.info
-bin/%.info: doc/info/%.texinfo
-	@mkdir -p bin
-	$(MAKEINFO) $<
-	mv $*.info $@
-
-.PHONY: pdf
-pdf: bin/alarm.pdf
-bin/%.pdf: doc/info/%.texinfo
-	@! test -d obj/pdf || rm -rf obj/pdf
-	@mkdir -p bin obj/pdf
-	cd obj/pdf && texi2pdf ../../"$<" < /dev/null
-	mv obj/pdf/$*.pdf $@
-
-.PHONY: dvi
-dvi: bin/alarm.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 $@
-
-.PHONY: ps
-ps: bin/alarm.ps
-bin/%.ps: doc/info/%.texinfo
-	@! test -d obj/ps || rm -rf obj/ps
-	@mkdir -p bin obj/ps
-	cd obj/ps && texi2pdf --ps ../../"$<" < /dev/null
-	mv obj/ps/$*.ps $@
-
-
-
-.PHONY: install
-install: install-base install-man install-info
-
-.PHONY: install-all
-install-all: install-base install-doc
-
-.PHONY: install-base
-install-base: install-command install-license
-
-.PHONY: install-command
-install-command: bin/alarm
+install: alarm
 	install -dm755 -- "$(DESTDIR)$(BINDIR)"
 	install -m755 $^ -- "$(DESTDIR)$(BINDIR)/$(COMMAND)"
-
-.PHONY: install-license
-install-license:
 	install -dm755 -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
-	install -m644 COPYING LICENSE -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
-
-.PHONY: install-doc
-install-doc: install-info install-pdf install-dvi install-ps install-man
-
-.PHONY: install-info
-install-info: bin/alarm.info
-	install -dm755 -- "$(DESTDIR)$(INFODIR)"
-	install -m644 $< -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
-
-.PHONY: install-pdf
-install-pdf: bin/alarm.pdf
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"
-
-.PHONY: install-dvi
-install-dvi: bin/alarm.dvi
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"
-
-.PHONY: install-ps
-install-ps: bin/alarm.ps
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 -- "$<" "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"
-
-install-man: doc/man/alarm.1
+	install -m644 LICENSE -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 	install -dm755 -- "$(DESTDIR)$(MAN1DIR)"
 	install -m644 $< -- "$(DESTDIR)$(MAN1DIR)/$(COMMAND).1"
 
-
-
-.PHONY: uninstall
 uninstall:
 	-rm -- "$(DESTDIR)$(BINDIR)/$(COMMAND)"
 	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/COPYING"
 	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/LICENSE"
 	-rmdir -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 	-rm -- "$(DESTDIR)$(MAN1DIR)/$(COMMAND).1"
-	-rm -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"
-
-
 
-.PHONY: clean
 clean:
-	-rm -r bin obj
+	-rm -r -- alarm *.o
 
+.PHONY: all check install uninstall clean
diff --git a/README b/README
index 92848e7..9d7b240 100644
--- a/README
+++ b/README
@@ -2,20 +2,20 @@ NAME
 	alarm - Schedule an alarm for a program when starting it
 
 SYNOPSIS
-	alarm DURATION COMMAND [ARGS...]
+	alarm duration command [argument...]
 
 DESCRIPTION
 	Schedules an alarm(3) to best triggered after a specified
-	DURATION. The process than execvp(3) into COMMAND ARGS.
+	duration. The process than execvp(3) into command.
 
-	This means that COMMAND will be killed by SIGALRM after
-	a selected DURATION.
+	This means that command will be killed by SIGALRM after
+	a selected duration.
 
-	DURATION must be a non-negative integer, no larger
-	than 18h12m15s. Recognised patterns for DURATION are:
-	*	SECONDS[s]
-	*	MINUTESm[SECONDSs]
-	*	HOURSh[MINUTESm][SECONDSs]
+	duration must be a non-negative integer, no larger
+	than 18h12m15s. Recognised patterns for duration are:
+	*	seconds[s]
+	*	minutesm[secondss]
+	*	hoursh[minutesm][secondss]
 
 RATIONALE
 	This program is useful when testing programs for a limited
diff --git a/alarm.1 b/alarm.1
new file mode 100644
index 0000000..198b2c2
--- /dev/null
+++ b/alarm.1
@@ -0,0 +1,48 @@
+.TH ALARM 1 ALARM
+.SH NAME
+alarm - Schedule an alarm for a program when starting it
+.SH SYNOPSIS
+.BR alarm
+.IR duration
+.IR command
+.RI [ argument \ ...]
+.SH DESCRIPTION
+Schedules an
+.BR alarm (3)
+to best triggered after a specified
+.IR duration .
+The process than
+.BR execvp (3)
+into
+.IR command .
+.PP
+This means that
+.IR command
+will be killed by
+.BR SIGALRM
+after a selected
+.IR duration .
+.PP
+.IR duration
+must be a non-negative integer, no larger than 18h12m15s.
+Recognised patterns for
+.IR duration
+are:
+.TP
+*
+.IR seconds [s]
+.TP
+*
+.IR minutes m[ seconds s]
+.TP
+*
+.IR hours h[ minutes m][ seconds s]
+.SH RATIONALE
+This program is useful when testing programs for a limited
+duration. Especially when running in the background, or
+there is a chance of it locking the computer.
+.SH "SEE ALSO"
+.BR alarm (3)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/alarm.c b/alarm.c
new file mode 100644
index 0000000..81ad107
--- /dev/null
+++ b/alarm.c
@@ -0,0 +1,61 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static char *argv0;
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: %s duration command [argument ...]\n", argv0);
+	exit(0);
+}
+
+int
+main(int argc, char **argv)
+{
+	long hours = 0;
+	long minutes = 0;
+	long seconds = 0;
+	long buf = 0;
+	int hms = 0;
+	char *time, c;
+
+	argv0 = argv[0];
+	if (argc < 3)
+		usage();
+
+	time = argv[1];
+	while ((c = *time++)) {
+		if (isdigit(c)) {
+			buf = buf * 10 - (c & 15);
+		} else if (strchr("hms", c)) {
+			if      (c == 'h')  hours   = -buf;
+			else if (c == 'm')  minutes = -buf;
+			else if (c == 's')  seconds = -buf;
+			buf = 0, hms = 1;
+		} else {
+			usage();
+		}
+	}
+	if (!hms) {
+		if (strlen(argv[1]) < 1)
+			return 0;
+		seconds = -buf;
+	}
+
+	seconds += minutes * 60;
+	seconds += hours * 60 * 60;
+	if (seconds < 1 || 65535 < seconds)
+		usage();
+
+	alarm((unsigned)seconds);
+	execvp(argv[2], &argv[2]);
+	fprintf(stderr, "%s: execvp %s: %s\n", argv0, argv[2], strerror(ENOMEM));
+	return 1;
+}
diff --git a/config.mk b/config.mk
new file mode 100644
index 0000000..5f26cd2
--- /dev/null
+++ b/config.mk
@@ -0,0 +1,6 @@
+PREFIX = /usr/local
+MANPREFIX = $(PREFIX)/share/man
+
+CCFLAGS  = -std=c99 -Wall -Wextra -O2
+CPPFLAGS = 
+LDFLAGS  = -s
diff --git a/dist/archlinux/stable/.gitignore b/dist/archlinux/stable/.gitignore
deleted file mode 100644
index 3384b99..0000000
--- a/dist/archlinux/stable/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-*
-!/.git*
-!/PKGBUILD
-!/alarm.install
-*~
-*.swo
-*.swp
-*.bak
-
diff --git a/dist/archlinux/stable/PKGBUILD b/dist/archlinux/stable/PKGBUILD
deleted file mode 100644
index 0306862..0000000
--- a/dist/archlinux/stable/PKGBUILD
+++ /dev/null
@@ -1,24 +0,0 @@
-# Maintainer: Mattias Andrée <`base64 -d`(bWFhbmRyZWUK)@member.fsf.org>
-
-pkgname=alarm
-pkgver=1.1
-pkgrel=2
-pkgdesc="Schedule an alarm for a program when starting it"
-url="https://github.com/maandree/alarm"
-arch=(i686 x86_64)
-license=(GPL3)
-depends=(glibc)
-makedepends=(make coreutils gcc glibc texinfo)
-install=alarm.install
-source=("${url}/archive/${pkgver}.tar.gz")
-sha256sums=(a8aa6f12591ce70beaa283214e0f1196dae6f78b7eb4b6e100b96b25627e6ae4)
-
-build() {
-    cd "${srcdir}/alarm-${pkgver}"
-    make DESTDIR="${pkgdir}"
-}
-
-package() {
-    cd "${srcdir}/alarm-${pkgver}"
-    make DESTDIR="${pkgdir}" install
-}
diff --git a/dist/archlinux/stable/alarm.install b/dist/archlinux/stable/alarm.install
deleted file mode 100644
index a73b865..0000000
--- a/dist/archlinux/stable/alarm.install
+++ /dev/null
@@ -1,20 +0,0 @@
-_file="alarm"
-
-infodir="usr/share/info"
-file="${_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/alarm.texinfo b/doc/info/alarm.texinfo
deleted file mode 100644
index d7408fe..0000000
--- a/doc/info/alarm.texinfo
+++ /dev/null
@@ -1,100 +0,0 @@
-\input texinfo   @c -*-texinfo-*-
-
-@c %**start of header
-@setfilename alarm.info
-@settitle alarm
-@afourpaper
-@documentencoding UTF-8
-@documentlanguage en
-@finalout
-@c %**end of header
-
-
-@dircategory General Commands
-@direntry
-* alarm: (alarm).                    Schedule an alarm for a program when starting it
-@end direntry
-
-
-@copying
-Copyright @copyright{} 2015 Mattias Andrée
-
-@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 alarm -- Schedule an alarm for a program when starting it
-@insertcopying
-@end ifnottex
-
-@titlepage
-@title alarm
-@subtitle Schedule an alarm for a program when starting it
-@author by Mattias Andrée (maandree)
-
-@page
-@vskip 0pt plus 1filll
-@insertcopying
-@page
-@end titlepage
-
-@contents
-
-
-
-@menu
-* Overview::                        Brief overview of @command{alarm}.
-* Invoking::                        Executing @command{alarm}.
-* GNU Free Documentation License::  Copying and sharing this manual.
-@end menu
-
-
-
-@node Overview
-@chapter Overview
-
-Schedules an alarm to best triggered after a specified
-duration. The process than exec:s into another command.
-
-This means that the selected program will start as
-normal but then be killed by @code{SIGALRM} after a
-selected duration.
-
-This program is useful when testing programs for a limited
-duration. Especially when running in the background, or
-there is a chance of it locking the computer.
-
-
-
-@node Invoking
-@chapter Invoking
-
-The first argument shall be the duration before @code{SIGALRM}
-is sent. The following arguments is the command just as
-if you were not using this command.
-
-The duration must be a non-negative integer, no larger
-than 18h12m15s. Recognised patterns are:
-
-@itemize @bullet
-@item @code{SECONDS[s]}
-@item @code{MINUTESm[SECONDSs]}
-@item @code{HOURSh[MINUTESm][SECONDSs]}
-@end itemize
-
-
-
-@node GNU Free Documentation License
-@appendix GNU Free Documentation License
-@include fdl.texinfo
-
-@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
-
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-VERBATIM COPYING
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-COPYING IN QUANTITY
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-@item
-MODIFICATIONS
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-Add an appropriate copyright notice for your modifications
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-Preserve in that license notice the full lists of Invariant Sections
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-@item
-For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
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-
-@item
-Preserve all the Invariant Sections of the Document,
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-Delete any section Entitled ``Endorsements''.  Such a section
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-@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
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-You may add a passage of up to five words as a Front-Cover Text, and a
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-you may not add another; but you may replace the old one, on explicit
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-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
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-The combined work need only contain one copy of this License, and
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-Make the same adjustment to the section titles in the list of
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-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
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-the collection, provided that you follow the rules of this License for
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-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
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-When the Document is included in an aggregate, this License does not
-apply to the other works in the aggregate which are not themselves
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-If the Cover Text requirement of section 3 is applicable to these
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-Otherwise they must appear on printed covers that bracket the whole
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-
-@item
-TRANSLATION
-
-Translation is considered a kind of modification, so you may
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-Replacing Invariant Sections with translations requires special
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-If a section in the Document is Entitled ``Acknowledgements'',
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-its Title (section 1) will typically require changing the actual
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-@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.
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-However, if you cease all violation of this License, then your license
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-
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-FUTURE REVISIONS OF THIS LICENSE
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-in part, as part of another Document.
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-under CC-BY-SA on the same site at any time before August 1, 2009,
-provided the MMC is eligible for relicensing.
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-@end enumerate
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-@page
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-To use this License in a document you have written, include a copy of
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-  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
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-If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
-replace the ``with@dots{}Texts.''@: line with this:
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-@group
-    with the Invariant Sections being @var{list their titles}, with
-    the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
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-@end smallexample
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-If you have Invariant Sections without Cover Texts, or some other
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-If your document contains nontrivial examples of program code, we
-recommend releasing these examples in parallel under your choice of
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-to permit their use in free software.
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-@c End:
diff --git a/doc/man/alarm.1 b/doc/man/alarm.1
deleted file mode 100644
index cc81977..0000000
--- a/doc/man/alarm.1
+++ /dev/null
@@ -1,59 +0,0 @@
-.TH ALARM 1 ALARM
-.SH NAME
-alarm - Schedule an alarm for a program when starting it
-.SH SYNOPSIS
-.BR alarm
-.IR DURATION
-.IR COMMAND
-.RI [ ARGS ...]
-.SH DESCRIPTION
-Schedules an
-.BR alarm (3)
-to best triggered after a specified
-.IR DURATION .
-The process than
-.BR execvp (3)
-into
-.IR COMMAND\ ARGS .
-.PP
-This means that
-.IR COMMAND
-will be killed by
-.BR SIGALRM
-after a selected
-.IR DURATION .
-.PP
-.IR DURATION
-must be a non-negative integer, no larger than 18h12m15s.
-Recognised patterns for
-.IR DURATION
-are:
-.TP
-*
-.IR SECONDS [s]
-.TP
-*
-.IR MINUTES m[ SECONDS s]
-.TP
-*
-.IR HOURS h[ MINUTES m][ SECONDS s]
-.SH RATIONALE
-This program is useful when testing programs for a limited
-duration. Especially when running in the background, or
-there is a chance of it locking the computer.
-.SH "SEE ALSO"
-.BR alarm (3)
-.SH AUTHORS
-Principal author, Mattias Andrée.  See the COPYING file for the full
-list of authors.
-.SH LICENSE
-Copyright \(co 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/alarm/issues or to
-maandree@member.fsf.org
diff --git a/src/alarm.c b/src/alarm.c
deleted file mode 100644
index 3c989a4..0000000
--- a/src/alarm.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/**
- * alarm — Schedule an alarm for a program when starting it
- * 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 <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stddef.h>
-
-
-int main(int argc, char** argv)
-{
-  char** cmdline = NULL;
-  long hours = 0;
-  long minutes = 0;
-  long seconds = 0;
-  long buf = 0;
-  int hms = 0;
-  char* time;
-  
-  if (argc < 3)
-    goto usage;
-  
-  time = argv[1];
-  while (*time)
-    {
-      char c = *time++;
-      if (('0' <= c) && (c <= '9'))
-	buf = buf * 10 - (c & 15);
-      else if (strchr("hms", c))
-	{
-	  if      (c == 'h')  hours   = -buf;
-	  else if (c == 'm')  minutes = -buf;
-	  else if (c == 's')  seconds = -buf;
-	  buf = 0, hms = 1;
-	}
-      else
-	goto usage;
-    }
-  if (!hms)
-    {
-      if (strlen(argv[1]) < 1)
-	return 0;
-      seconds = -buf;
-    }
-  
-  seconds += minutes * 60;
-  seconds += hours * 60 * 60;
-  if ((seconds < 1) || (65535 < seconds))
-    goto usage;
-  
-  cmdline = malloc((size_t)(argc - 1) * sizeof(char*));
-  if (cmdline == NULL)
-    goto fail;
-  memcpy(cmdline, argv + 2, (size_t)(argc - 2) * sizeof(char*));
-  cmdline[argc - 2] = NULL;
-  
-  alarm((unsigned)seconds);
-  execvp(argv[2], cmdline);
-  
- fail:
-  perror(*argv);
-  free(cmdline);
-  return 1;
-  
- usage:
-  printf("USAGE: %s <TIME> <COMMAND> <ARGS...>\n", *argv);
-  printf("\n");
-  printf("Recognised patterns for <TIME>:\n");
-  printf("\n");
-  printf("    <SECONDS>[s]\n");
-  printf("    <MINUTES>m[<SECONDS>s]\n");
-  printf("    <HOURS>h[<MINUTES>m][<SECONDS>s]\n");
-  printf("\n");
-  printf("    All values are non-negative integers, and\n");
-  printf("    the interal must be greater than zero and\n");
-  printf("    at most 18h12m15s.\n");
-  printf("\n");
-  return 1;
-}
-