Initial import

This commit is contained in:
Laurence Withers 2006-10-09 16:21:24 +01:00
commit 0867c8acab
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
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Foundation's software and to any other program whose authors commit to
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When we speak of free software, we are referring to freedom, not
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mini-at
========================================================================
(c)2006, Laurence Withers, <l@lwithers.me.uk>.
Released under the GNU GPLv2. See file COPYING or
http://www.gnu.org/copyleft/gpl.html for details.
Really Quick Instructions
-------------------------
To build: ./make.sh
To install: ./make.sh install
(you might want to set PREFIX, by default it's /usr/local)
Rationale
---------
Why this and not the standard `at' suite?
1) Deals with non-monotonic time (unfortunately this means we have to
wake up once every so often to check if our time is too far out).
2) Simpler specification of timestamp (uses ISO8601).
3) Allows redirection of stdin from a file which is automatically
deleted.
4) Flexible user control through use of Uinx sockets.

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#!/bin/bash
# mini-at/make.sh
#
# (c)2006, Laurence Withers, <l@lwithers.me.uk>.
# Released under the GNU GPLv2. See file COPYING or
# http://www.gnu.org/copyleft/gpl.html for details.
#
# This file is the script used to build mini-at. There are some
# options that can be edited; these are set below (or you can pass them
# in as variables).
[ -z "${CC}" ] && CC="gcc"
[ -z "${CXX}" ] && CXX="g++"
[ -z "${CFLAGS}" ] && CFLAGS="-g -O2 -W -Wall"
[ -z "${PREFIX}" ] && PREFIX="/usr/local"
[ -z "${LIBDIR}" ] && LIBDIR="${PREFIX}/lib"
[ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
[ -z "${INCLUDEDIR}" ] && INCLUDEDIR="${PREFIX}/include"
[ -z "${DOCSDIR}" ] && DOCSDIR="${PREFIX}/share/doc/mini-at"
# for pkg-config
[ -z "${PKGCONFDIR}" ] && PKGCONFDIR="${LIBDIR}/pkgconfig"
[ -z "${FINALLIBDIR}" ] && FINALLIBDIR="${LIBDIR}"
[ -z "${FINALINCLUDEDIR}" ] && FINALINCLUDEDIR="${INCLUDEDIR}"
# for SDCC-built firmware
[ -z "${HEXDIR}" ] && HEXDIR="${PREFIX}/share/firmware"
[ -z "${SDCC}" ] && SDCC="sdcc"
# Get version information
source version || exit 1
VERSION="${VERMAJOR}.${VERMINOR}.${VERMICRO}"
if [ ! -z "${VEREXTRA}" ]
then
VERSION="${VERSION}-${VEREXTRA}"
fi
# Get standard functions
[ -z "${VERBOSE}" ] && VERBOSE="0"
source scripts/functions.sh || exit 1
# List of directories which will be emptied by clean.
OUTPUT_DIRS="obj html"
# This function makes a monolithic file out of several source files. Its
# first argument is the name of the output file, and the second is the
# format of monolithic file to create (for example, "C" will cause the
# inclusion of "#line" directives at the top of each included file).
#
# It also examines the following variables:
# MONOLITHIC_TESTS if any file mentioned in this list is newer
# than the output file, then we recreate it
# MONOLITHIC_SOURCE a list (in order) of the source files
#
# Recognised formats are:
# none no special processing happens before each file
# C #line directives are inserted before each file
# and VERSION, VERMAJOR etc. are #defined
# Ch Like C, but for header files (no VERSION #defines)
#
make_monolithic() {
if [ $# -ne 2 ]
then
print_failure "make_monolithic() called with wrong number of arguments"
print_failure "(expecting 2, got $#)"
return 1
fi
MONOLITHIC_OUT=$1
# extract options
HASHLINE=0
VERDEFINE=0
if [ "$2" == "C" ]
then
HASHLINE=1
VERDEFINE=1
elif [ "$2" == "Ch" ]
then
HASHLINE=1
elif [ "$2" == "none" ]
then
HASHLINE=0 # dummy command
else
print_failure "make_monolithic() called with unknown format $2"
return 1
fi
echo " Building monolithic file '${MONOLITHIC_OUT}'..."
MODIFIED=0
for FILE in ${MONOLITHIC_TESTS} ${MONOLITHIC_SOURCE}
do
if [ ! -e "${FILE}" ]
then
print_failure "'${FILE}' does not exist"
return 1
fi
if [ "${FILE}" -nt ${MONOLITHIC_OUT} ]
then
MODIFIED=1
break
fi
done
if [ ${MODIFIED} -ne 0 ]
then
do_cmd mkdir -p $(dirname ${MONOLITHIC_OUT})
do_cmd rm -f ${MONOLITHIC_OUT} || exit 1
if [ ${VERDEFINE} -ne 0 ]
then
do_cmd_redir ${MONOLITHIC_OUT} echo "#define VERSION \"${VERSION}\"" || return 1
do_cmd_redir ${MONOLITHIC_OUT} echo "#define VERMAJOR ${VERMAJOR}" || return 1
do_cmd_redir ${MONOLITHIC_OUT} echo "#define VERMINOR ${VERMINOR}" || return 1
do_cmd_redir ${MONOLITHIC_OUT} echo "#define VERMICRO ${VERMICRO}" || return 1
do_cmd_redir ${MONOLITHIC_OUT} echo "#define VEREXTRA \"${VEREXTRA}\"" || return 1
fi
for FILE in ${MONOLITHIC_SOURCE}
do
if [ ${HASHLINE} -ne 0 ]
then
do_cmd_redir ${MONOLITHIC_OUT} echo "#line 1 \"${FILE}\"" || return 1
fi
do_cmd_redir ${MONOLITHIC_OUT} cat "${FILE}" || return 1
done
print_success "Done"
else
print_success "Up to date"
fi
}
# This will build a directory tree, if required, with mode 0755. The
# argument is the directory to build.
build_dir_tree() {
# sanity check
if [ $# -ne 1 ]
then
print_failure "build_dir_tree() called with wrong number of arguments"
print_failure "(expecting 1, got $#)"
return 1
fi
local DIR="$1"
# if the directory already exists, return success
[ -d "${DIR}" ] && return 0
# if something with this name already exists, but not a directory,
# then fail
if [ -e "${DIR}" ]
then
print_failure "Failed to create directory '${DIR}'"
return 1
fi
# build the directory, but if it fails, recurse a level (and handle
# the case where recursion fails)
mkdir "${DIR}" >& /dev/null
if [ $? -ne 0 ]
then
build_dir_tree $(dirname "${DIR}") || return 1
mkdir "${DIR}"
if [ $? -ne 0 ]
then
print_failure "Failed to create directory '${DIR}'"
return 1
fi
fi
# set permissions on newly-created dir and return
chmod 0755 "${DIR}"
return 0
}
# This will install a file. The first parameter is the source, and the
# second is the destination. The third is the octal mode.
install_file() {
# figure out if $2 is a directory or not
DEST_FILE="$2"
[ -d "$2" ] && DEST_FILE="$2/$(basename $1)"
echo " Installing: '$1' -> '$2'"
do_cmd cp -fP "$1" "${DEST_FILE}" || return 1
do_cmd chmod "$3" "${DEST_FILE}" || return 1
return 0
}
# This will install a header file. It is basically similar to
# install_file(), only we strip out the #line directives.
install_header() {
DEST_FILE="$2"
[ -d "$2" ] && DEST_FILE="$2/$(basename $1)"
echo " Installing header: '$1' -> '$2'"
do_cmd rm -f ${DEST_FILE} || exit 1
do_cmd_redir ${DEST_FILE} sed -e "s,^#line.*,," $1 || exit 1
do_cmd chmod "$3" "${DEST_FILE}" || return 1
return 0
}
# This installs a symlink. The first argument is the symlink's name; the
# second the symlink's source filename, and the third is the directory
# in which to create the symlink.
install_symlink() {
echo " Installing symlink: '$3/$2' -> '$1'"
( do_cmd cd $3; ln -sf $2 $1 ) || return 1
return 0
}
build_target() {
ITEMS="src/$1/build.default"
if [ ! -e "${ITEMS}" ]
then
ITEMS="$(find src -type f -name build.$1)"
fi
if [ -z "${ITEMS}" ]
then
print_failure "Unrecognised target '$1'"
return 1
fi
for item in ${ITEMS}
do
do_cmd source ${item} || exit 1
done
return 0
}
########################################################################
# Main script
########################################################################
if [ $# -eq 0 ]
then
targets="default"
else
targets="$@"
fi
for func in ${targets}
do
case ${func} in
clean)
echo "Cleaning..."
rm -rf ${OUTPUT_DIRS}
print_success "Done"
;;
# bad Kdevelop! bad!
-j1)
;;
-k)
;;
*)
build_target ${func} || exit 1
;;
esac
done
exit 0
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4

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<?xml version = '1.0'?>
<kdevelop>
<general>
<author>Laurence Withers</author>
<email>l@lwithers.me.uk</email>
<version>$VERSION$</version>
<projectmanagement>KDevCustomProject</projectmanagement>
<primarylanguage>C++</primarylanguage>
<ignoreparts/>
<projectdirectory>.</projectdirectory>
<absoluteprojectpath>false</absoluteprojectpath>
<description/>
<versioncontrol/>
</general>
<kdevcustomproject>
<run>
<mainprogram>/bin/true</mainprogram>
<directoryradio>executable</directoryradio>
<customdirectory>/</customdirectory>
<programargs/>
<terminal>false</terminal>
<autocompile>true</autocompile>
<envvars/>
</run>
<build>
<buildtool>make</buildtool>
<builddir/>
</build>
<make>
<abortonerror>false</abortonerror>
<numberofjobs>1</numberofjobs>
<prio>0</prio>
<dontact>false</dontact>
<makebin>./make.sh</makebin>
<defaulttarget>default</defaulttarget>
<makeoptions/>
<selectedenvironment>default</selectedenvironment>
<environments>
<default/>
</environments>
</make>
<general>
<activedir/>
</general>
</kdevcustomproject>
<kdevdebugger>
<general>
<dbgshell/>
<programargs/>
<gdbpath/>
<configGdbScript/>
<runShellScript/>
<runGdbScript/>
<breakonloadinglibs>true</breakonloadinglibs>
<separatetty>false</separatetty>
<floatingtoolbar>false</floatingtoolbar>
</general>
<display>
<staticmembers>false</staticmembers>
<demanglenames>true</demanglenames>
<outputradix>10</outputradix>
</display>
</kdevdebugger>
<kdevdoctreeview>
<ignoretocs>
<toc>ada</toc>
<toc>ada_bugs_gcc</toc>
<toc>bash</toc>
<toc>bash_bugs</toc>
<toc>clanlib</toc>
<toc>fortran_bugs_gcc</toc>
<toc>gnome1</toc>
<toc>gnustep</toc>
<toc>gtk</toc>
<toc>gtk_bugs</toc>
<toc>haskell</toc>
<toc>haskell_bugs_ghc</toc>
<toc>java_bugs_gcc</toc>
<toc>java_bugs_sun</toc>
<toc>kde2book</toc>
<toc>opengl</toc>
<toc>pascal_bugs_fp</toc>
<toc>php</toc>
<toc>php_bugs</toc>
<toc>perl</toc>
<toc>perl_bugs</toc>
<toc>python</toc>
<toc>python_bugs</toc>
<toc>qt-kdev3</toc>
<toc>ruby</toc>
<toc>ruby_bugs</toc>
<toc>sdl</toc>
<toc>sw</toc>
<toc>w3c-dom-level2-html</toc>
<toc>w3c-svg</toc>
<toc>w3c-uaag10</toc>
<toc>wxwidgets_bugs</toc>
</ignoretocs>
<ignoreqt_xml>
<toc>Guide to the Qt Translation Tools</toc>
<toc>Qt Assistant Manual</toc>
<toc>Qt Designer Manual</toc>
<toc>Qt Reference Documentation</toc>
<toc>qmake User Guide</toc>
</ignoreqt_xml>
<ignoredoxygen>
<toc>KDE Libraries (Doxygen)</toc>
</ignoredoxygen>
</kdevdoctreeview>
<kdevfilecreate>
<filetypes/>
<useglobaltypes>
<type ext="cpp" />
<type ext="h" />
</useglobaltypes>
</kdevfilecreate>
<cppsupportpart>
<filetemplates>
<interfacesuffix>.h</interfacesuffix>
<implementationsuffix>.cpp</implementationsuffix>
</filetemplates>
</cppsupportpart>
<kdevcppsupport>
<codecompletion>
<includeGlobalFunctions>true</includeGlobalFunctions>
<includeTypes>true</includeTypes>
<includeEnums>true</includeEnums>
<includeTypedefs>false</includeTypedefs>
<automaticCodeCompletion>true</automaticCodeCompletion>
<automaticArgumentsHint>true</automaticArgumentsHint>
<automaticHeaderCompletion>true</automaticHeaderCompletion>
<codeCompletionDelay>1</codeCompletionDelay>
<argumentsHintDelay>1</argumentsHintDelay>
<headerCompletionDelay>250</headerCompletionDelay>
</codecompletion>
<creategettersetter>
<prefixGet/>
<prefixSet>set</prefixSet>
<prefixVariable>m_,_</prefixVariable>
<parameterName>theValue</parameterName>
<inlineGet>true</inlineGet>
<inlineSet>true</inlineSet>
</creategettersetter>
<references/>
</kdevcppsupport>
<kdevdocumentation>
<projectdoc>
<docsystem/>
<docurl/>
<usermanualurl/>
</projectdoc>
</kdevdocumentation>
<kdevfileview>
<groups>
<hidenonprojectfiles>false</hidenonprojectfiles>
<hidenonlocation>false</hidenonlocation>
</groups>
<tree>
<hidepatterns>*.o,*.lo,CVS</hidepatterns>
<hidenonprojectfiles>false</hidenonprojectfiles>
<showvcsfields>false</showvcsfields>
</tree>
</kdevfileview>
<ctagspart>
<customArguments/>
<customTagfilePath/>
</ctagspart>
</kdevelop>

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# KDevelop Custom Project File List
src/lib/BottomHeader.h
src/lib/TopHeader.h
src/lib/TopSource.cpp

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#!/bin/bash
# mini-at/test.sh
#
# (c)2006, Laurence Withers, <l@lwithers.me.uk>.
# Released under the GNU GPLv2. See file COPYING or
# http://www.gnu.org/copyleft/gpl.html for details.
#
# Running this script on its own will display a summary of all the
# available tests; running it with arguments runs the relevant test.
# This runs a test, setting the correct library path.
run_test() {
EXE=obj/tests/$1
shift
if [ ! -x ${EXE} ]
then
echo "No such test '${EXE}'"
return 1
fi
LD_LIBRARY_PATH="obj" ${EXE} "$@" || return 1
return 0
}
# This prints summary output from each test app.
print_tests() {
echo "Available tests"
echo "---------------------------------------------------------------------"
for EXE in obj/tests/*
do
[ -x ${EXE} ] || continue
NAME=$(echo ${EXE} | sed 's,obj/tests/,,')
echo -ne "${NAME}\t"
LD_LIBRARY_PATH="obj" ${EXE} --print-summary
done
}
# Main script
if [ $# -eq 0 ]
then
print_tests
exit 0
fi
run_test $*
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4

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build.c++.app
build.c++.lib
build.c++.qtapp
build.c++.tests
build.c.app
build.c.lib
build.c.tests
build.doxygen.docs
build.none.files
build.sdcc.firmware
module-create.sh
release.sh

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#!/bin/bash
# mini-at/scripts/functions.sh
#
# (c)2006, Laurence Withers, <l@lwithers.me.uk>.
# Released under the GNU GPLv2. See file COPYING or
# http://www.gnu.org/copyleft/gpl.html for details.
#
# Common functions
# Print a success message
print_success() {
if [ -z "${TERM}" -o "${TERM}" == "dumb" ]
then
echo -n " - "
else
(echo -n -e " \E[32m* "; tput sgr0)
fi
echo $*
}
# Print a failure message
print_failure() {
if [ -z "${TERM}" -o "${TERM}" == "dumb" ]
then
echo -n " *** "
else
(echo -n -e " \E[31m*** "; tput sgr0)
fi
echo $*
}
# This function carries out a command, but reports its failure if
# necessary.
do_cmd() {
[ "${VERBOSE}" != "0" ] && echo "$@"
"$@"
if [ $? -ne 0 ]
then
print_failure "'$@' failed."
return 1
fi
}
# This function carries out a command, but reports its failure if
# necessary.
do_cmd_redir() {
DEST=$1
shift
[ "${VERBOSE}" != "0" ] && echo "$@ >> ${DEST}"
"$@" >> ${DEST}
if [ $? -ne 0 ]
then
print_failure "'$@' failed."
return 1
fi
}
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4

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c app mini-at

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/* mini-at/src/mini-at/TopSource.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
// Below are all the includes used throughout the application.
int main(void)
{
return 0;
}
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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# These are external variables, and shouldn't clash with anything else
# mini_at
# mini_at_BUILT
#
if [ -z ${mini_at_BUILT} ]
then
mini_at="obj/mini-at"
EXTRAS="" # @TODO@ cflags, libs
echo "Building application ${mini_at}..."
do_cmd source src/mini-at/build.monolithic || return 1
MODIFIED=0
for test in ${MONOLITHIC_TESTS} ${SRC}
do
if [ ${test} -nt ${mini_at} ]
then
MODIFIED=1
break
fi
done
if [ ${MODIFIED} -ne 0 ]
then
echo " Compiling..."
do_cmd ${CC} ${CFLAGS} -I obj -o "${mini_at}" ${SRC} ${EXTRAS} || return 1
print_success "Application built"
else
print_success "Application up to date"
fi
mini_at_BUILT=1
fi
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# vim: expandtab:ts=4:sw=4

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source src/mini-at/build.app

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source src/mini-at/build.install-app

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build_target mini-at
# make paths (this is for Gentoo in particular)
build_dir_tree "${BINDIR}" || return 1
# install binary
echo "Installing binaries into '${BINDIR}'"
install_file "${mini_at}" "${BINDIR}" 0755 || return 1
print_success "Done"
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
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# These are external variables, and shouldn't clash with anything else
# mini_at_MONOLITHIC
#
SRC="obj/mini-at.c"
MONOLITHIC_TESTS="src/mini-at/build.app src/mini-at/build.monolithic"
if [ -z "${mini_at_MONOLITHIC}" ]
then
MONOLITHIC_SOURCE="$(echo src/mini-at/TopSource.c)"
make_monolithic ${SRC} C || return 1
mini_at_MONOLITHIC=1
MONOLITHIC_DOC="${MONOLITHIC_DOC} ${SRC}"
fi
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4

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c app mini-atd

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/* mini-at/src/mini-atd/TopSource.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
// Below are all the includes used throughout the application.
#include <time.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <limits.h>
#include <signal.h>
#include <stdarg.h>
#include <stdlib.h>
#include <syslog.h>
#include <unistd.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/socket.h>
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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# These are external variables, and shouldn't clash with anything else
# mini_atd
# mini_atd_BUILT
#
if [ -z ${mini_atd_BUILT} ]
then
mini_atd="obj/mini-atd"
EXTRAS="-D_GNU_SOURCE"
echo "Building application ${mini_atd}..."
do_cmd source src/mini-atd/build.monolithic || return 1
MODIFIED=0
for test in ${MONOLITHIC_TESTS} ${SRC}
do
if [ ${test} -nt ${mini_atd} ]
then
MODIFIED=1
break
fi
done
if [ ${MODIFIED} -ne 0 ]
then
echo " Compiling..."
do_cmd ${CC} ${CFLAGS} -I obj -o "${mini_atd}" ${SRC} ${EXTRAS} || return 1
print_success "Application built"
else
print_success "Application up to date"
fi
mini_atd_BUILT=1
fi
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# vim: expandtab:ts=4:sw=4

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source src/mini-atd/build.app

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source src/mini-atd/build.install-app

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build_target mini-atd
# make paths (this is for Gentoo in particular)
build_dir_tree "${BINDIR}" || return 1
# install binary
echo "Installing binaries into '${BINDIR}'"
install_file "${mini_atd}" "${BINDIR}" 0755 || return 1
print_success "Done"
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# These are external variables, and shouldn't clash with anything else
# mini_atd_MONOLITHIC
#
SRC="obj/mini-atd.c"
MONOLITHIC_TESTS="src/mini-atd/build.app src/mini-atd/build.monolithic"
if [ -z "${mini_atd_MONOLITHIC}" ]
then
MONOLITHIC_SOURCE="$(echo src/mini-atd/{TopSource,setup,util,time,main}.c)"
make_monolithic ${SRC} C || return 1
mini_atd_MONOLITHIC=1
MONOLITHIC_DOC="${MONOLITHIC_DOC} ${SRC}"
fi
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
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/* mini-at/src/mini-atd/main.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
void version(void)
{
printf("mini-atd " VERSION "\n"
"(c)2006, Laurence Withers.\n");
}
void usage(void)
{
printf("Usage:\n\n"
" mini-atd [options]\n\n"
"Options:\n"
"-h, --help Display this screen.\n"
"-V, --version Display version.\n"
"-D, --daemon Daemonise.\n"
"-s, --socket Name of socket file (default: ~/.mini-atd).\n"
"-p, --permissions Octal permissions of socket (default: 0600).\n"
"\n");
}
struct option options[] = {
{ "help", no_argument, 0, 'h' },
{ "version", no_argument, 0, 'V' },
{ "daemon", no_argument, 0, 'D' },
{ "socket", required_argument, 0, 's' },
{ "permissions", required_argument, 0, 'p' },
{ 0, 0, 0, 0 }
};
int main(int argc, char* argv[])
{
const char* socket = 0;
char* endp;
int perms = -1, daemon = 0, fd = -1;
char fn_buf[sizeof(struct sockaddr_un) - sizeof(int)]; // not perfect, but solves build errors
// process commandline options
while(1) {
switch(getopt_long(argc, argv, "hVs:p:", options, 0)) {
case -1:
goto done;
case 'h':
usage();
return 0;
case 'V':
version();
return 0;
case 'D':
daemon++;
break;
case 's':
if(socket) {
fprintf(stderr, "Cannot specify name of socket twice.\n");
return 1;
}
socket = optarg;
break;
case 'p':
if(perms != -1) {
fprintf(stderr, "Cannot specify permissions twice.\n");
return 1;
}
endp = 0;
errno = 0;
perms = strtol(optarg, &endp, 8);
if(errno || !endp || *endp) {
fprintf(stderr, "Invalid mode string `%s'.\n", optarg);
return 1;
}
if(perms < 0 || perms > 03777) {
fprintf(stderr, "Invalid mode %04o.\n", perms);
return 1;
}
break;
default:
// getopt() already printed an error message
return -1;
}
}
done:
// defaults if not specified
if(!socket) {
endp = getenv("HOME");
if(!endp) {
fprintf(stderr, "${HOME} not set; cannot construct socket filename.\n");
return 1;
}
snprintf(fn_buf, sizeof(fn_buf) - 1, "%s/.mini-atd", endp);
fn_buf[sizeof(fn_buf) - 1] = 0;
} else {
strncpy(fn_buf, socket, sizeof(fn_buf) - 1);
fn_buf[sizeof(fn_buf) - 1] = 0;
}
if(perms == -1) perms = 0600;
// setup
if(daemon && daemonise()) return 1;
setup_signals();
fd = setup_socket(fn_buf, perms);
if(fd == -1) return 1;
// process
while(!Quit) {
// if(process_socket(fd)) return 1;
sleep(1);
}
// clean up
close(fd);
unlink(fn_buf);
// done
return 0;
}
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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/* mini-at/src/mini-atd/setup.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
/* Daemon
*
* Global flag which records whether or not we're daemonised. In daemon mode, we LOG() to syslog;
* otherwise, we LOG() to stdout/stderr.
*/
int Daemon = 0;
/* LOG(), do_log()
*
* The logging system.
*/
#define LOG(_level, _fmt, ...) do { \
do_log(_level, "%s:%d: %s: " _fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
}while(0)
void do_log(int level, const char* fmt, ...)
{
va_list va;
va_start(va, fmt);
if(Daemon) {
vsyslog(level, fmt, va);
} else {
FILE* out = stdout;
switch(level) {
case LOG_WARNING:
case LOG_ERR:
case LOG_CRIT:
case LOG_ALERT:
case LOG_EMERG:
out = stderr;
}
vfprintf(out, fmt, va);
fputc('\n', out);
}
va_end(va);
}
/* daemonise()
*
* Turns us into a daemon. Returns 0 on success.
*/
int daemonise(void)
{
// normal daemon stuff
switch(fork()) {
case -1:
perror("fork");
return 1;
case 0:
// child
break;
default:
// parent
exit(0);
}
if(setsid() == -1) {
perror("setsid");
return 1;
}
// switch LOG() over to syslog
++Daemon;
openlog("mini-atd", 0, LOG_DAEMON);
// close file descriptors, re-open on /dev/null
close(0);
close(1);
close(2);
if(open("/dev/null", O_RDWR) == -1 || dup(0) == -1 || dup(1) == -1) {
LOG(LOG_CRIT, "Opening /dev/null or dup() failed - %s (%d).",
strerror(errno), errno);
return 123;
}
return 0;
}
/* setup_socket()
*
* Sets up a unix socket with the given name and permissions. Returns file descriptor on success,
* or -1 on error.
*/
int setup_socket(const char* name, int perms)
{
int fd;
long flags;
struct sockaddr_un addr;
// create socket structure
fd = socket(PF_UNIX, SOCK_DGRAM, 0);
if(fd == -1) {
LOG(LOG_CRIT, "Creating new socket with socket() failed - %s (%d).",
strerror(errno), errno);
return -1;
}
// set non-blocking mode
if( (flags = fcntl(fd, F_GETFL, 0)) == -1 || fcntl(fd, F_SETFL, flags | O_NONBLOCK)) {
LOG(LOG_CRIT, "Couldn't set non-blocking mode on fd %d - %s (%d).",
fd, strerror(errno), errno);
return -1;
}
// bind to filename we were passed
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, name); // main() ensures it is less than UNIX_PATH_MAX bytes
if(bind(fd, (struct sockaddr*)&addr, sizeof(addr))) {
LOG(LOG_CRIT, "Couldn't bind socket (fd %d) to file ``%s'' - %s (%d).",
fd, name, strerror(errno), errno);
close(fd);
return -1;
}
// set permissions
if(fchmod(fd, perms)) {
LOG(LOG_CRIT, "Couldn't set permissions %04o on socket ``%s'' (fd %d) - %s (%d).",
perms, name, fd, strerror(errno), errno);
close(fd);
unlink(name);
return -1;
}
return fd;
}
/* setup_signals(), signal_handler(), Quit
*
* Our signal handling mechanism. We want to exit cleanly on SIGINT or SIGTERM (these will set the
* global variable Quit). Otherwise, we want to abort.
*/
volatile int Quit = 0;
void signal_handler(int sig)
{
LOG(LOG_NOTICE, "Received signal %d, send again to force quit now.", sig);
Quit = 1;
// restore default signal handler to force quit next time
signal(sig, SIG_DFL);
}
void setup_signals(void)
{
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
}
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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/* mini-at/src/mini-atd/time.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
/* struct time_db_entry
*
* A structure which holds a single entry for a command. It has the date at which the command will
* be run, the command, its arguments, and potentially a filename from which stdin will be
* redirected. It is part of a linked list.
*/
struct time_db_entry {
time_t when; // when do we run it?
char* path; // path to program
int num_args; // number of arguments
char** args; // list of arguments
char* in; // possible input filename
struct time_db_entry* next;
};
/* struct time_db
*
* Holds a list of commands. The list must be sorted. Also holds a variable array of PIDs which we
* are waiting on for exit status.
*/
struct time_db {
struct time_db_entry* head;
pid_t* pids, * pids2;
int num_pids, sz_pids;
};
/* free_time_db_entry()
*
* Frees a time database entry (frees memory associated with it and unlinks any temporary files
* associated with it).
*/
void free_time_db_entry(struct time_db_entry* t)
{
int i;
free(t->path);
for(i = 0; i < t->num_args; ++i) free(t->args[i]);
free(t->args);
if(t->in) unlink(t->in);
free(t->in);
free(t);
}
/* process_time_db_entry()
*
* Runs a time database entry.
*/
pid_t process_time_db_entry(const struct time_db_entry* t)
{
pid_t pid;
LOG(LOG_INFO, "Running program ``%s'' (%d args).", t->path, t->num_args);
switch( (pid = fork()) ) {
case -1:
LOG(LOG_ALERT, "fork() failed - %s (%d) - couldn't run command.", strerror(errno), errno);
return -1;
case 0:
// child
break;
default:
// parent -- return PID
return pid;
}
// if we have an input file, we should redirect stdin from there
if(t->in) {
close(0);
if(open(t->in, O_RDONLY) == -1) {
LOG(LOG_ERR, "Couldn't redirect stdin from ``%s'' for command ``%s'' - %s (%d).",
t->in, t->path, strerror(errno), errno);
_exit(1); // this is the child we are exiting, not the parent
}
}
// now run the new process, inheriting the current environment
execve(t->path, t->args, environ);
LOG(LOG_ERR, "Couldn't run command ``%s'' - %s (%d).",
t->path, strerror(errno), errno);
_exit(1); // child, not parent
}
/* process_time_db()
*
* Processes the time database structure `tdb', running all commands for which we have entries, and
* removing them from the list. Also wait()s on any PIDs we have spawned.
*/
void process_time_db(struct time_db* tdb)
{
struct time_db_entry* iter, * next;
time_t now;
int i, j, status;
pid_t pid, * pids;
// clean up children
for(j = 0, i = 0; i < tdb->num_pids; ++i) {
switch(waitpid(tdb->pids[i], &status, WNOHANG)) {
case 0: // nothing exited
// copy to new list
tdb->pids2[j++] = tdb->pids[i];
break;
case -1: // error
LOG(LOG_WARNING, "waitpid(%d) returned error - %s (%d).",
tdb->pids[i], strerror(errno), errno);
break;
default: // exited
if(WIFSIGNALED(status)) {
LOG(LOG_INFO, "process %d killed by signal %d.",
tdb->pids[i], WTERMSIG(status));
} else if(WIFEXITED(status)) {
LOG(LOG_INFO, "process %d exited with status %d.",
tdb->pids[i], WEXITSTATUS(status));
} else {
LOG(LOG_INFO, "process %d exited via unknown method %x.",
tdb->pids[i], status);
}
break; // we no longer track this PID
}
}
// swap tables
pids = tdb->pids;
tdb->pids = tdb->pids2;
tdb->pids2 = pids;
tdb->num_pids = j;
// process the list of commands (sorted)
time(&now);
iter = tdb->head;
while(iter && now <= iter->when) {
// run this command
pid = process_time_db_entry(iter);
if(pid != -1) {
// add to children list
if(tdb->num_pids == tdb->sz_pids) {
// resize array
if(tdb->sz_pids) tdb->sz_pids <<= 1;
else tdb->sz_pids = 4;
tdb->pids = safe_realloc(tdb->pids, tdb->sz_pids * sizeof(pid_t));
tdb->pids2 = safe_realloc(tdb->pids2, tdb->sz_pids * sizeof(pid_t));
}
tdb->pids[tdb->num_pids++] = pid;
}
// free up from linked list
next = iter->next;
free_time_db_entry(iter);
tdb->head = next;
iter = next;
}
}
/* free_time_db()
*
* Frees the time database and any entries associated with it. This will clean up all temporary
* files used for stdin redirection.
*/
void free_time_db(struct time_db* tdb)
{
struct time_db_entry* iter, * next;
for(iter = tdb->head; iter; iter = next) {
next = iter->next;
free_time_db_entry(iter);
}
free(tdb->pids);
free(tdb->pids2);
free(tdb);
}
/* add_time_db_entry()
*
* Adds an entry `t' into the time database `tdb'. Does a sorted list insert.
*/
void add_time_db_entry(struct time_db* tdb, struct time_db_entry* t)
{
struct time_db_entry* iter, * prev;
prev = 0;
iter = tdb->head;
while(iter) {
if(t->when <= iter->when) break;
prev = iter;
iter = iter->next;
}
t->next = iter;
if(prev) prev->next = t;
else tdb->head = t;
}
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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/* mini-at/src/mini-atd/util.c
*
* (c)2006, Laurence Withers, <l@lwithers.me.uk>.
* Released under the GNU GPLv2. See file COPYING or
* http://www.gnu.org/copyleft/gpl.html for details.
*/
/* safe_malloc()
*
* Allocates `n' bytes, aborting the program if we run out of memory. Always retruns a valid
* pointer. Clears memory.
*/
void* safe_malloc(size_t n)
{
void* p;
p = malloc(n);
if(!p) {
LOG(LOG_CRIT, "error allocating %lu bytes of memory (%d - %s)",
(unsigned long)n, errno, strerror(errno));
abort();
}
memset(p, 0, n);
return p;
}
/* safe_realloc()
*
* Reallocates `p' so that it is `n' bytes in size, aborting the program if we run out of memory.
* Always returns a valid pointer. Semantics as realloc(3).
*/
void* safe_realloc(void* p, size_t n)
{
p = realloc(p, n);
if(!p) {
LOG(LOG_CRIT, "error reallocating %lu bytes of memory (%d - %s)",
(unsigned long)n, errno, strerror(errno));
abort();
}
return p;
}
/* safe_strdup()
*
* Returns a newly-malloc()ed duplicate of `s', aborting the program if we run out of memory.
* Always returns a valid pointer.
*/
char* safe_strdup(const char* s)
{
char* p;
p = strdup(s);
if(!p) {
LOG(LOG_CRIT, "error allocating %lu bytes of memory (%d - %s)",
(unsigned long)(strlen(s)), errno, strerror(errno));
abort();
}
return p;
}
/* options for text editors
kate: replace-trailing-space-save true; space-indent true; tab-width 4;
vim: expandtab:ts=4:sw=4
*/

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# mini-at/version
#
# (c)2006, Laurence Withers, <l@lwithers.me.uk>.
# Released under the GNU GPLv2. See file COPYING or
# http://www.gnu.org/copyleft/gpl.html for details.
#
# VERSION contains the full version number of the library, which is
# expected to be in 'major.minor.micro' format. It can optionally be
# suffixed with a string.
VERMAJOR=0
VERMINOR=0
VERMICRO=0
VEREXTRA=""
# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4