jinit-0.1.12/0002777000175000017500000000000010211432437007714 500000000000000jinit-0.1.12/README0000644000175000017500000000407007413114430010507 00000000000000SysV message queues =================== jinit uses SysV message queues extensively. If it is not possible to open enough message queues, the bootup process will slow down as need processes wait for one to become available. Indeed if you have too few, then many bootup scripts will never complete successfully because of the congestion. A value of about 64 for /proc/sys/kernel/shmmni seems to be appropriate. Note that this value is a lot higher than the default on linux 2.4 kernels. jinit ===== An init for the Seventh distribution based on Richard Gooch's need(8) scheme. See http://www.atnf.csiro.au/~rgooch/linux/boot-scripts/. The default inittab is /etc/jinittab and not /etc/inittab. For an example of a working setup see, example-setup/etc/. Inittab lines that respawn commands are not understood. To respawn, call the supplied "need" program like this: % need --respawn tty1 gogetty /dev/tty1 If you want to give environment variables to the programs called by init, put export TERM=linux or similar into the inittab. Useful inittab variables: boot=/bin/script run this script at startup sulogin=/bin/program start this program when something goes wrong shutdown=/sbin/init-shutdown location of init-shutdown fileprefix=/etc/jinit/ services are kept in this directory (need final /) Signals are a bit like the FreeBSD init. SIGINT shutdown and reboot system SIGUSR1 shutdown and halt system SIGUSR2 shutdown and turn off power SIGTERM shutdown and start sulogin SIGQUIT shutdown and exec init SIGTSTP toggle respawning SIGHUP fork a process to dump a core file If init gets a SIGSEGV or other error signal, it will dump core and re-execute itself with the "panic" option. This means it will forget the state of services and what to respawn. If started with the "emergency" option, it will run sulogin before booting. wtmp ==== Note that reboot and shutdown records are not written to wtmp. The excuse for this is that the updwtmp function does not return error so it is impossible to tell if e.g. the filesystem holding wtmp is read-only on reboot. jinit-0.1.12/configure.in0000644000175000017500000000123507653570167012163 00000000000000dnl Process this file with autoconf to produce a configure script. 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However `strip' might not be the right # tool to use in cross-compilation environments, therefore Automake # will honor the `STRIP' environment variable to overrule this program. if test "$cross_compiling" != no; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_STRIP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then echo "$as_me:$LINENO: result: $STRIP" >&5 echo "${ECHO_T}$STRIP" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":" fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5 echo "${ECHO_T}$ac_ct_STRIP" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi STRIP=$ac_ct_STRIP else STRIP="$ac_cv_prog_STRIP" fi fi INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s" # We need awk for the "check" target. 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then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "gcc", so it can be a program name with args. set dummy gcc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. set dummy ${ac_tool_prefix}cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$CC" && break done fi if test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cl do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$ac_ct_CC" && break done CC=$ac_ct_CC fi fi test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&5 echo "$as_me: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } # Provide some information about the compiler. echo "$as_me:$LINENO:" \ "checking for C compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version &5\"") >&5 (eval $ac_compiler --version &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -v &5\"") >&5 (eval $ac_compiler -v &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -V &5\"") >&5 (eval $ac_compiler -V &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files a.out a.exe b.out" # Try to create an executable without -o first, disregard a.out. # It will help us diagnose broken compilers, and finding out an intuition # of exeext. echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 (eval $ac_link_default) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # Find the output, starting from the most likely. This scheme is # not robust to junk in `.', hence go to wildcards (a.*) only as a last # resort. # Be careful to initialize this variable, since it used to be cached. # Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile. ac_cv_exeext= # b.out is created by i960 compilers. for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; conftest.$ac_ext ) # This is the source file. ;; [ab].out ) # We found the default executable, but exeext='' is most # certainly right. break;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` # FIXME: I believe we export ac_cv_exeext for Libtool, # but it would be cool to find out if it's true. Does anybody # maintain Libtool? --akim. export ac_cv_exeext break;; * ) break;; esac done else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { echo "$as_me:$LINENO: error: C compiler cannot create executables See \`config.log' for more details." >&5 echo "$as_me: error: C compiler cannot create executables See \`config.log' for more details." >&2;} { (exit 77); exit 77; }; } fi ac_exeext=$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_file" >&5 echo "${ECHO_T}$ac_file" >&6 # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether the C compiler works" >&5 echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6 # FIXME: These cross compiler hacks should be removed for Autoconf 3.0 # If not cross compiling, check that we can run a simple program. if test "$cross_compiling" != yes; then if { ac_try='./$ac_file' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then cross_compiling=no else if test "$cross_compiling" = maybe; then cross_compiling=yes else { { echo "$as_me:$LINENO: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&5 echo "$as_me: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi fi fi echo "$as_me:$LINENO: result: yes" >&5 echo "${ECHO_T}yes" >&6 rm -f a.out a.exe conftest$ac_cv_exeext b.out ac_clean_files=$ac_clean_files_save # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6 echo "$as_me:$LINENO: result: $cross_compiling" >&5 echo "${ECHO_T}$cross_compiling" >&6 echo "$as_me:$LINENO: checking for suffix of executables" >&5 echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6 if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # If both `conftest.exe' and `conftest' are `present' (well, observable) # catch `conftest.exe'. For instance with Cygwin, `ls conftest' will # work properly (i.e., refer to `conftest.exe'), while it won't with # `rm'. for ac_file in conftest.exe conftest conftest.*; do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` export ac_cv_exeext break;; * ) break;; esac done else { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi rm -f conftest$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 echo "${ECHO_T}$ac_cv_exeext" >&6 rm -f conftest.$ac_ext EXEEXT=$ac_cv_exeext ac_exeext=$EXEEXT echo "$as_me:$LINENO: checking for suffix of object files" >&5 echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6 if test "${ac_cv_objext+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF rm -f conftest.o conftest.obj if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? 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So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || { (exit 1); exit 1; } fi jinit-0.1.12/AUTHORS0000644000175000017500000000003607651076654010720 00000000000000John Fremlin jinit-0.1.12/COPYING0000644000175000017500000004311007215777533010703 00000000000000 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 freedom to share and change it. By contrast, the GNU General Public 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 General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) 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 this service 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 make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. 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. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute 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 and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), 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 distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the 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 a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE 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. 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 convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision 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, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This 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 Library General Public License instead of this License. jinit-0.1.12/ChangeLog0000644000175000017500000000142607653570423011421 000000000000002003-04-29 John Fremlin * need/main.cc (User): added --restart * need/error.hh (error): use std:: 2001-06-21 John Fremlin * shutdown/shutdown: added /etc/nologin modification 2001-05-29 John Fremlin * need/main.cc (clo): Instead of fooling around with abort set error flag and report error in exit value on failed dev/null opening. (User): add a --show option to list a single service 2001-01-08 John Fremlin * need/main.cc (clo): add --silent option 2000-12-27 John Fremlin * init_ipc/sysvq.hh (init_ipc): Reduced possible length of names to 256 characters, as the 2.4 kernels have a very low [8192 byte] default message queue size. jinit-0.1.12/INSTALL0000644000175000017500000001750407411551306010673 00000000000000Summary ======= Once ./configure has been run (see below) you can install with make install and install the various example scripts with make install-initscripts Basic Installation ================== These are generic installation instructions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, a file `config.cache' that saves the results of its tests to speed up reconfiguring, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.in' is used to create `configure' by a program called `autoconf'. You only need `configure.in' if you want to change it or regenerate `configure' using a newer version of `autoconf'. The simplest way to compile this package is: 1. `cd' to the directory containing the package's source code and type `./configure' to configure the package for your system. If you're using `csh' on an old version of System V, you might need to type `sh ./configure' instead to prevent `csh' from trying to execute `configure' itself. Running `configure' takes awhile. While running, it prints some messages telling which features it is checking for. 2. Type `make' to compile the package. 3. Optionally, type `make check' to run any self-tests that come with the package. 4. Type `make install' to install the programs and any data files and documentation. 5. You can remove the program binaries and object files from the source code directory by typing `make clean'. To also remove the files that `configure' created (so you can compile the package for a different kind of computer), type `make distclean'. There is also a `make maintainer-clean' target, but that is intended mainly for the package's developers. If you use it, you may have to get all sorts of other programs in order to regenerate files that came with the distribution. Compilers and Options ===================== Some systems require unusual options for compilation or linking that the `configure' script does not know about. You can give `configure' initial values for variables by setting them in the environment. Using a Bourne-compatible shell, you can do that on the command line like this: CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure Or on systems that have the `env' program, you can do it like this: env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure Compiling For Multiple Architectures ==================================== You can compile the package for more than one kind of computer at the same time, by placing the object files for each architecture in their own directory. To do this, you must use a version of `make' that supports the `VPATH' variable, such as GNU `make'. `cd' to the directory where you want the object files and executables to go and run the `configure' script. `configure' automatically checks for the source code in the directory that `configure' is in and in `..'. If you have to use a `make' that does not supports the `VPATH' variable, you have to compile the package for one architecture at a time in the source code directory. After you have installed the package for one architecture, use `make distclean' before reconfiguring for another architecture. Installation Names ================== By default, `make install' will install the package's files in `/usr/local/bin', `/usr/local/man', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PATH'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you give `configure' the option `--exec-prefix=PATH', the package will use PATH as the prefix for installing programs and libraries. Documentation and other data files will still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=PATH' to specify different values for particular kinds of files. Run `configure --help' for a list of the directories you can set and what kinds of files go in them. If the package supports it, you can cause programs to be installed with an extra prefix or suffix on their names by giving `configure' the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. Optional Features ================= Some packages pay attention to `--enable-FEATURE' options to `configure', where FEATURE indicates an optional part of the package. They may also pay attention to `--with-PACKAGE' options, where PACKAGE is something like `gnu-as' or `x' (for the X Window System). The `README' should mention any `--enable-' and `--with-' options that the package recognizes. For packages that use the X Window System, `configure' can usually find the X include and library files automatically, but if it doesn't, you can use the `configure' options `--x-includes=DIR' and `--x-libraries=DIR' to specify their locations. Specifying the System Type ========================== There may be some features `configure' can not figure out automatically, but needs to determine by the type of host the package will run on. Usually `configure' can figure that out, but if it prints a message saying it can not guess the host type, give it the `--host=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name with three fields: CPU-COMPANY-SYSTEM See the file `config.sub' for the possible values of each field. If `config.sub' isn't included in this package, then this package doesn't need to know the host type. If you are building compiler tools for cross-compiling, you can also use the `--target=TYPE' option to select the type of system they will produce code for and the `--build=TYPE' option to select the type of system on which you are compiling the package. Sharing Defaults ================ If you want to set default values for `configure' scripts to share, you can create a site shell script called `config.site' that gives default values for variables like `CC', `cache_file', and `prefix'. `configure' looks for `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it exists. Or, you can set the `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. Operation Controls ================== `configure' recognizes the following options to control how it operates. `--cache-file=FILE' Use and save the results of the tests in FILE instead of `./config.cache'. Set FILE to `/dev/null' to disable caching, for debugging `configure'. `--help' Print a summary of the options to `configure', and exit. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `--version' Print the version of Autoconf used to generate the `configure' script, and exit. `configure' also accepts some other, not widely useful, options. jinit-0.1.12/NEWS0000644000175000017500000000116707653570221010344 00000000000000* 0.1.2 first public release * 0.1.3 minor issues * 0.1.4 changed signal handling * 0.1.5 tidied up shutdown * 0.1.6 rewrote respawn death handling - may have killed last elusive SIGSEGV * 0.1.7 workarounds for lower limits in 2.4 kernel. Bootscript fixes. Now init will execute a helper function to shutdown the system so init upgrades do not result in a fsck. * 0.1.8 shutdown(8) program as sh script, need --silent option, more bootscript cleanups for kernel 2.4 * 0.1.9 minor bootscript tweaks * 0.1.10 bootscript tweaking, shutdown now does /etc/nologin properly, utmp handling changed slightly * 0.1.12 fixed for new gcc3jinit-0.1.12/TODO0000644000175000017500000000065207226440205010325 00000000000000* Be able to stop services that are starting * Compatibility: parse inittabs * Include a sulogin * Install need under many names * Stop unnecessary SIGARLM * Persistant state - be able to restore init state between execs * provide(8) functionality * man pages * better utmp handling - what exactly should be done? * avoid staircase effect * do something good with terminals - howabout ctrl-C handling * handle keyboard signal jinit-0.1.12/depcomp0000755000175000017500000002752507412664515011233 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects # Copyright 1999, 2000 Free Software Foundation, Inc. # 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 2, 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # `libtool' can also be set to `yes' or `no'. depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Some modes work just like other modes, but use different flags. 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"$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" echo " " >> "$depfile" . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 jinit-0.1.12/install-sh0000755000175000017500000001273607370772121011654 00000000000000#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. 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You may want to install GNU tar or Free paxutils, or check the command line arguments." exit 1 ;; *) echo 1>&2 "\ WARNING: \`$1' is needed, and you do not seem to have it handy on your system. You might have modified some files without having the proper tools for further handling them. Check the \`README' file, it often tells you about the needed prerequirements for installing this package. You may also peek at any GNU archive site, in case some other package would contain this missing \`$1' program." exit 1 ;; esac exit 0 jinit-0.1.12/mkinstalldirs0000755000175000017500000000132207370772121012443 00000000000000#! /bin/sh # mkinstalldirs --- make directory hierarchy # Author: Noah Friedman # Created: 1993-05-16 # Public domain # $Id: mkinstalldirs,v 1.13 1999/01/05 03:18:55 bje Exp $ errstatus=0 for file do set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` shift pathcomp= for d do pathcomp="$pathcomp$d" case "$pathcomp" in -* ) pathcomp=./$pathcomp ;; esac if test ! -d "$pathcomp"; then echo "mkdir $pathcomp" mkdir "$pathcomp" || lasterr=$? if test ! -d "$pathcomp"; then errstatus=$lasterr fi fi pathcomp="$pathcomp/" done done exit $errstatus # mkinstalldirs ends here jinit-0.1.12/bootstrap0000755000175000017500000000022407215777533011612 00000000000000#!/bin/sh aclocal autoheader automake --gnu --add-missing --copy autoconf CFLAGS="-ggdb3 -pipe -Wall" CXXFLAGS="-ggdb3 -pipe -Wall" ./configure jinit-0.1.12/init_ipc/0002777000175000017500000000000010211432436011511 500000000000000jinit-0.1.12/init_ipc/Connection.hh0000644000175000017500000000035407215777534014072 00000000000000#ifndef CONNECTION_HH #define CONNECTION_HH class Connection { public: virtual void success() = 0; virtual void failure() = 0; virtual void deliver(const char* payload, size_t length) = 0; virtual ~Connection() =0; } ; #endif jinit-0.1.12/init_ipc/Init.hh0000644000175000017500000000124407215777534012675 00000000000000#ifndef INIT_IPC_INIT_HH #define INIT_IPC_INIT_HH #include #include #include #include "sysvq.hh" namespace init_ipc { class Init { int my_qid; public: Init() : my_qid(-1) { } ~Init() { close(); } bool open() { if(my_qid!=-1) close(); my_qid = msgget(sysvq::queue_key(),IPC_CREAT|0700); if(my_qid==-1) return false; return true; } void handle_connect(); bool close() { if(my_qid==-1)return true; if(msgctl (my_qid, IPC_RMID, NULL) == -1) return false; my_qid = -1; return true; } } ; } #endif jinit-0.1.12/init_ipc/InitConnection.hh0000644000175000017500000000735707413127064014713 00000000000000#ifndef INIT_IPC_INITCONNECTION_HH #define INIT_IPC_INITCONNECTION_HH #include #include "init/ServiceStarter.hh" #include "init/ServiceNotification.hh" #include "init/Service.hh" #include "init/Respawner.hh" #include "init/bootstrap.hh" namespace init_ipc { class InitConnection { class Callback : public ServiceNotification { Service::Status my_good,my_bad; class InitConnection*my_conn; public: Callback(InitConnection*c,Service::Status good, Service::Status bad):my_good(good),my_bad(bad),my_conn(c) { } bool event(class Service*,enum Service::Status status) { if(status==my_good) { my_conn->success(); return true; } if(status == my_bad || status == Service::destroyed ){ my_conn->failure(); return true; } return false; } ~Callback() { delete my_conn; } }; pid_t my_sid; public: typedef std::list Vec; void respawn(const Vec&v) { Vec::const_iterator i = v.begin(); if(i==v.end()){ failure(); delete this; return; } std::string id = *i; if(++i==v.end()){ debug((_("respawn request too short"))); failure(); delete this; return; } Respawner* r=global_processtab.get_respawner(id); if(r){ r->clear_name(); } else r=new Respawner(id); r->set_bin(*i); for(i++;i!=v.end();i++) r->add_arg(*i); r->start(); success(); delete this; return; } void forget_respawn(const std::string& id) { Respawner*r=global_processtab.get_respawner(id); if(!r){ say(_("respawning process \"%s\" does not exist"),id.c_str()); failure(); delete this; return; } r->stop(); delete r; success(); delete this; return; } virtual void success() = 0; virtual void failure() = 0; virtual void deliver(const char* payload, size_t length) = 0; InitConnection(pid_t sid):my_sid(sid) { } virtual ~InitConnection() { } void start_service(const std::string& name) { Service*s; Process*p = global_processtab.get_process(my_sid); Service*parent=0; if(p){ debug((_("service that requested \"%s\" is known"),name.c_str())); ServiceStarter*starter= dynamic_cast(p); if(starter) parent = starter->get_service(); if(parent) debug((_("service \"%s\" needs service \"%s\""),parent->get_name().c_str(),name.c_str())); } if((s=global_processtab.get_service(name))){ if(parent){ s->add_dependant(parent); parent->add_dependency(s); } if(s->is_successful()){ success(); delete this; return; } if(!s->is_starting()){ failure(); delete this; return; } } else { s=new Service(name); if(parent){ s->add_dependant(parent); parent->add_dependency(s); } global_inittab.start_service(s); } s->add_watcher(new Callback(this,Service::successful,Service::startup_failed)); } void stop_service(std::string name) { Service*s=global_processtab.get_service(name); if(s){ if(s->is_failed()||s->is_starting()){ //TODO FIXME failure(); delete this; return; } s->add_watcher(new Callback(this,Service::finished,Service::shutdown_failed)); if(s->is_successful()) global_inittab.stop_service(s); } else { failure(); delete this; } } void forget_service(std::string name) { Service*s=global_processtab.get_service(name); if(s) delete s; success(); delete this; } void list_services(std::string name) { std::string list = global_processtab.list_services(name); size_t s = list.length(); deliver(list.c_str(),s); delete this; } } ; } #endif jinit-0.1.12/init_ipc/User.hh0000644000175000017500000001240107653570071012676 00000000000000#ifndef INIT_IPC_USER_HH #define INIT_IPC_USER_HH #include #include #include #include #include #include #include #include #include #include #include "init_ipc/sysvq.hh" #include "need/error.hh" namespace init_ipc { class User { int my_ans_qid; key_t my_ans_q_key; int my_req_qid; public: User():my_ans_qid(-1),my_ans_q_key(0),my_req_qid(-1) { } ~User() { close_talkback(); } bool open_command() { if(my_req_qid!=-1) return true; my_req_qid = msgget(sysvq::queue_key(),0); if(my_req_qid==-1){ error(_("could not open SysV queue to init: ") << strerror(errno) ); return false; } return true; } bool open_talkback() { if(my_ans_qid!=-1) return true; int tries = 30; my_ans_q_key = rand(); for(key_t k=my_ans_q_key+1;k!=my_ans_q_key;k++){ if(k == IPC_PRIVATE) continue; my_ans_qid = msgget(k,IPC_CREAT|IPC_EXCL|0700); if(my_ans_qid!=-1){ my_ans_q_key = k; goto got_queue; } if(errno == EEXIST) continue; if(errno == ENOSPC && --tries){ struct timespec t; struct timespec r; t.tv_sec = rand() % 3 + 1; t.tv_nsec = rand() % 1000000000; do{ if(nanosleep(&t,&r)==-1 && errno != EINTR){ warn("nanosleep({%ld,%ld},{%ld,%ld})", (long)t.tv_sec,(long)t.tv_nsec, (long)r.tv_sec,(long)r.tv_nsec ); sleep(2); break; } if(r.tv_sec < 0 || r.tv_nsec < 0) break; t = r; } while(r.tv_sec || r.tv_nsec); continue; } error(_("could not open SysV queue for callback: ") << strerror(errno) ); return false; } error(_("could not find an unused SysV queue for callback: ") << strerror(errno)); return false; got_queue: return true; } bool start_service(const std::string&name) { return do_service(name,sysvq::connect_req::start_service); } bool forget_service(const std::string&name) { return do_service(name,sysvq::connect_req::forget_service); } bool stop_service(const std::string&name) { return do_service(name,sysvq::connect_req::stop_service); } bool forget_respawn(const std::string&id) { return do_service(id,sysvq::connect_req::forget_respawn); } bool respawn(const char*id,const char**args) { sysvq::connect_req req; init_req(req); req.command = sysvq::connect_req::respawn; unsigned length = sizeof req.name; char*end = req.name+length; char*p=req.name; try{ append(p,id,end); if(*args) append(p,*args,end); for(const char**i=args;*i;i++) append(p,*i,end); append(p,"",end); } catch(Overrun){ error(_("respawn request too long")); return false; } return submit(req); } char*list_services(std::string name=std::string()) { char*ret=0; char*str=0; ret = 0; sysvq::connect_req req; setup_service(name,sysvq::connect_req::list_services,req); if(msgsnd(my_req_qid,&req,sizeof(req) - sizeof(req.mtype),0) == -1){ perror("bulk msgsnd"); return false; } sysvq::connect_ans ans; for(;;){ if(msgrcv(my_ans_qid,&ans,sizeof(ans) - sizeof(ans.mtype),0,0)==-1){ perror("bulk msgrcv"); return false; } if(ans.status != sysvq::connect_ans::successful){ error(_("init reported failure on reply SysV queue")); if(ret)delete ret; return false; } if(!str) str = ret = new char[ans.total_payload+1]; size_t s = ans.total_payload; if(s<=sizeof(ans.payload)){ memcpy(str,ans.payload,s); str[s]=0; return ret; } memcpy(str,ans.payload,sizeof ans.payload); str+=sizeof ans.payload; } } bool close_talkback() { if(my_ans_qid!=-1){ if(msgctl (my_ans_qid, IPC_RMID, NULL) != -1) my_ans_qid = -1; else { error(_("could not remove SysV queue")); return false; } } return true; } protected: bool setup_service(const std::string&name, sysvq::connect_req::command_t command, sysvq::connect_req& req) { if(name.size()>sizeof req.name){ error(_("name too long: ") << name); return false; } init_req(req); strcpy(req.name,name.c_str()); req.command = command; return true; } bool do_service(const std::string&name,sysvq::connect_req::command_t command) { sysvq::connect_req req; setup_service(name,command,req); return submit(req); } bool submit(sysvq::connect_req&req) { if(msgsnd(my_req_qid,&req,sizeof(req) - sizeof(req.mtype),0) == -1){ perror("msgsnd"); return false; } if(my_ans_qid != -1){ sysvq::connect_ans ans; if(msgrcv(my_ans_qid,&ans,sizeof(ans) - sizeof(ans.mtype),0,0)==-1){ perror("msgrcv"); return false; } return ans.status == sysvq::connect_ans::successful; } return true; } void init_req(sysvq::connect_req&req); class Overrun { } ; void append(char*&p,const char*tail,char*end) { for(;*tail;tail++,p++){ if(p>=end) throw Overrun(); *p=*tail; } *p++=0; } } ; } #endif jinit-0.1.12/init_ipc/init_ipc.hh0000644000175000017500000000016007215777534013564 00000000000000#ifndef INIT_IPC_INIT_IPC_HH #define INIT_IPC_INIT_IPC_HH namespace init_ipc { key_t queue_key(); } #endif jinit-0.1.12/init_ipc/sysvq.hh0000644000175000017500000000151707222236712013144 00000000000000#ifndef INIT_IPC_SYSVQ #define INIT_IPC_SYSVQ #include #include #include "init_ipc.hh" namespace init_ipc { namespace sysvq { typedef unsigned id_t; const long version = 2; key_t queue_key(); // Keep these structures small, as the default queue size is only // about 8192 bytes struct connect_req { long mtype; id_t msg_id; key_t q_key; enum command_t { invalid, start_service, stop_service, forget_service, list_services, respawn, forget_respawn }command; char name[256]; pid_t sid; } ; struct connect_ans { long mtype; id_t msg_id; enum { successful, failed } status; size_t total_payload; char payload[2048]; } ; } } #endif jinit-0.1.12/init_ipc/Makefile.am0000644000175000017500000000033307216001722013457 00000000000000 SUBDIRS = sysvq INCLUDES = -I.. noinst_LIBRARIES = libinit_ipc.a libinit_ipc_a_SOURCES = init_ipc.cc Init.cc User.cc sysvq.cc noinst_HEADERS = Connection.hh Init.hh InitConnection.hh User.hh init_ipc.hh sysvq.hhjinit-0.1.12/init_ipc/Makefile.in0000664000175000017500000003712310211432431013473 00000000000000# Makefile.in generated by automake 1.8.5 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004 Free Software Foundation, Inc. # This Makefile.in is free software; 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} } jinit-0.1.12/init_ipc/Init.cc0000644000175000017500000000574007413310714012647 00000000000000#include #include #include #include #include #include "init/PermitSignals.hh" #include "init/bootstrap.hh" #include "init/Inittab.hh" #include "init/ServiceNotification.hh" #include "init/Service.hh" #include "InitConnection.hh" #include "sysvq/InitConnection.hh" #include "Init.hh" #include "sysvq.hh" using namespace init_ipc; class BadName { } ; inline static void good_name(struct sysvq::connect_req& req) { const char*end = req.name+sizeof(req.name)-1; for(const char*i=req.name;i<=end;i++) if(!*i)return; say(_("corrupt request: name too long")); /* the name was too long to fit */ throw BadName(); } inline static InitConnection::Vec req2vec(struct sysvq::connect_req& req) { InitConnection::Vec vec; const char*end = req.name+sizeof(req.name)-1; char*last=req.name; for(char*i=req.name;i<=end;i++) { if(!*i){ vec.push_back(last); last = i+1; if(!*last)return vec; } } say(_("bad respawn request on SysV queue")); return vec; } static void handle_req(struct sysvq::connect_req& req) { int reply_q = -1; if(req.q_key != IPC_PRIVATE) reply_q = msgget(req.q_key,0); if(reply_q == -1){ debug(_("could not open reply queue")); } else debug((_("reply queue opened"))); InitConnection* c = new sysvq::InitConnection(reply_q,req.msg_id,req.sid); try{ switch(req.command){ case sysvq::connect_req::start_service: good_name(req); c->start_service(req.name); return; case sysvq::connect_req::stop_service: good_name(req); c->stop_service(req.name); return; case sysvq::connect_req::forget_service: good_name(req); c->forget_service(req.name); return; case sysvq::connect_req::respawn: { InitConnection::Vec v=req2vec(req); if(!v.empty()) c->respawn(v); else say(_("badly formatted respawn request on SysV queue")); return; } case sysvq::connect_req::forget_respawn: good_name(req); c->forget_respawn(req.name); return; case sysvq::connect_req::list_services: c->list_services(req.name); return; default: say(_("unknown command on SysV queue")); } } catch(BadName){ } c->failure(); delete c; } void Init::handle_connect() { ssize_t length; struct sysvq::connect_req req; { PermitSignals ps; length = msgrcv(my_qid,&req,sizeof req - sizeof req.mtype,0,MSG_NOERROR); } if(length == -1) { if(errno==EAGAIN || errno==EINTR) return; if(errno==EIDRM) { say(_("SysV init queue destroyed, recreating")); my_qid=-1; open(); handle_connect(); } say(_("error receiving message on SysV message queue")); yield(5);/*wait for a while to avoid eating all CPU */ return; } if(req.mtype != sysvq::version){ say(_("bad message type on queue: mismatched versions?")); return ; } debug((_("received message on SysV queue"))); handle_req(req); } jinit-0.1.12/init_ipc/User.cc0000644000175000017500000000040307215777535012673 00000000000000#define _XOPEN_SOURCE 600 #include "User.hh" namespace init_ipc { extern void User::init_req(sysvq::connect_req&req) { req.mtype = sysvq::version; req.msg_id = rand(); req.q_key = my_ans_q_key; req.sid = getsid(getpid()); } } jinit-0.1.12/init_ipc/sysvq.cc0000644000175000017500000000021507215777534013142 00000000000000#include "sysvq.hh" namespace init_ipc { namespace sysvq { extern key_t queue_key() { return ftok("/",'/'); } } } jinit-0.1.12/init_ipc/sysvq/0002777000175000017500000000000010211432436012676 500000000000000jinit-0.1.12/init_ipc/sysvq/InitConnection.hh0000644000175000017500000000245307413302207016062 00000000000000#ifndef INIT_IPC_SYSV_INITCONNECTION_HH #define INIT_IPC_SYSV_INITCONNECTION_HH #include #include namespace init_ipc { namespace sysvq { class InitConnection : public init_ipc::InitConnection { connect_ans my_ans; int my_qid; public: InitConnection(int qid,id_t id,pid_t sid):init_ipc::InitConnection(sid),my_qid(qid) { my_ans.mtype = version; my_ans.msg_id = id; my_ans.total_payload = 0; } virtual void success() { my_ans.status = connect_ans::successful; answer(); } virtual void failure() { my_ans.status = connect_ans::failed; answer(); } virtual void deliver(const char* payload, size_t length) { my_ans.status = connect_ans::successful; if(!length){ my_ans.total_payload = 0; answer(); } while(length){ size_t l = length; my_ans.total_payload = length; if(l>sizeof(my_ans.payload)) l=sizeof(my_ans.payload); length-=l; memcpy(my_ans.payload,payload,l); answer(); payload+=l; } } protected: void answer() { if(my_qid != -1 && msgsnd(my_qid,&my_ans,sizeof(my_ans) - sizeof(long),IPC_NOWAIT) == -1){ debug(_("problem returning message")); } } } ; } } #endif jinit-0.1.12/init_ipc/sysvq/Makefile.am0000644000175000017500000000004307215777535014667 00000000000000noinst_HEADERS = InitConnection.hh jinit-0.1.12/init_ipc/sysvq/Makefile.in0000664000175000017500000002232310211432431014654 00000000000000# Makefile.in generated by automake 1.8.5 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; 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my_environ_type my_environ; typedef std::map my_variables_type; my_variables_type my_variables; Service*my_booter; public: Inittab(const char* filename=0):my_booter(0) { if(filename) read(filename); } void setenv()const { for(my_environ_type::const_iterator i=my_environ.begin();i!=my_environ.end();i++) ::setenv((*i).first.c_str(),(*i).second.c_str(),1); } std::string get_sulogin()const { return get_var("sulogin",_PATH_SULOGIN); } std::string get_serviceprefix()const { return get_var("fileprefix","/etc/jinit/"); } std::string get_boot()const { return get_var("boot","/etc/rc"); } std::string get_shutdown()const { return get_var("shutdown","/sbin/init-shutdown"); } bool boot() /* Originally there was one normal service that was started at bootup and so needed no further handling. This approach is more compatible to existing schemes however. */ { if(!launch(get_boot(),"")){ say(_("boot script \"%s\" failed to start"),get_boot().c_str()); return false; } return true; } /* true on success, false failure */ bool start_service(Service*service) { pid_t child = do_service(service->get_name(),"start"); if(child) service->start(child); return child; } /* true on success, false failure */ bool stop_service(Service*s) { if(!s) return true; if(s->is_stopping()) return true; if(!s->is_successful()) return false; unsigned deps; const unsigned slack_time = 10; unsigned time_left = slack_time; unsigned old_deps=0; for(;;){ deps = s->stop_dependants(); if(!deps) break; { PermitSignals ps; yield(); } if(deps==old_deps){ if(!--time_left){ say(_("timed out waiting for dependants of \"%s\" to stop"), s->get_name().c_str()); /* is there a cyclic dependancy? */ break; } } else{ time_left += slack_time; old_deps = deps; } } pid_t child = do_service(s->get_name(),"stop"); if(child) s->stop(child); return child; } void read(const char*filename); protected: std::string get_var(const std::string&name,const std::string&def = std::string())const { my_variables_type::const_iterator i = my_variables.find(name); if(i==my_variables.end()) { debug((_("the inittab variable \"%s\" was not defined, default \"%s\""), name.c_str(),def.c_str())); return def; } return (*i).second; } void set_var(const std::string&n,const std::string&v) { my_variables[n]=v; } void set_envvar(const std::string&n,const std::string&v) { my_environ.push_back(std::pair(n,v)); } pid_t do_service(const std::string&service,const char* action) { std::string bin = get_serviceprefix()+service; return launch(bin,action); } pid_t launch(const std::string& bin, const char*arg) { pid_t child = fork(); switch(child){ case -1: say(_("can't fork to launch \"%s\" %s"),bin.c_str(),arg); return 0; case 0: { debug((_("launching \"%s\""),bin.c_str())); char *const argv[]={(char*)bin.c_str(),(char*)arg,0}; do_exec(bin.c_str(),argv); } default: return child; } } } ; extern Inittab global_inittab; #endif jinit-0.1.12/init/Respawner.hh0000644000175000017500000000634407314464747013112 00000000000000#ifndef RESPAWNER_HH #define RESPAWNER_HH #include #include #include #include #include #include "RespawnProcess.hh" #include "ProcessTab.hh" #include "bootstrap.hh" extern sig_atomic_t global_stop_spawning; class Respawner { typedef std::vector my_args_type; my_args_type my_args; std::string my_bin; std::string my_id; typedef std::list my_spawns_type; my_spawns_type my_spawns; RespawnProcess*my_helper; public: Respawner(const std::string&str=""):my_id(str), my_helper(0) { } void set_bin(const std::string&s) { my_bin=s; } void add_arg(const std::string&s) { my_args.push_back(s); } void clear_name() { my_bin = ""; my_args.clear(); } void start() { debug((_("starting respawn of \"%s\""),my_id.c_str())); global_processtab.add_respawner(my_id,this); spawn(); } void stop() { global_processtab.remove_respawner(this); } void spawn() { if(my_helper) return; if(global_stop_spawning || too_fast(time(0))){ say(_("respawn of \"%s\" (%s) is paused"),my_id.c_str(),my_bin.c_str()); return; } char**args = new char*[my_args.size()+1]; char**arg = args; for(my_args_type::iterator i=my_args.begin();i!=my_args.end();i++) *arg++ = (char*)(*i).c_str(); *arg = 0; pid_t p = fork(); switch(p){ case -1: say(_("fork failed: could not respawn \"%s\""),my_bin.c_str()); break; case 0: do_exec(my_bin.c_str(),args); default: my_helper = new RespawnProcess(p,this); write_utmp_start(p); delete args; } } void died(int status) { my_helper = 0; write_utmp_stop(status); } ~Respawner() { debug((_("stopping respawn of \"%s\""),my_id.c_str())); free_helper(); } protected: void free_helper() { if(my_helper){ delete my_helper; my_helper=0; } } void write_utmp_start(pid_t pid) { struct utmp ut; init_utmp(ut); ut.ut_type = INIT_PROCESS; ut.ut_pid = pid; write_utmp(ut); } void write_utmp_stop(int status) { struct utmp ut; init_utmp(ut); ut.ut_type = DEAD_PROCESS; ut.ut_exit.e_exit = WEXITSTATUS(status); ut.ut_exit.e_termination = WTERMSIG(status); write_utmp(ut); } bool too_fast(time_t time) { const time_t period = 128; //seconds const unsigned too_many = 32; //respawns unsigned recent = 0; for(my_spawns_type::iterator i=my_spawns.begin();i!=my_spawns.end();) if((*i)+period > time){ recent++; i++; } else{ i=my_spawns.erase(i); } if(recent >= too_many){ say(_("\"%s\" respawning too fast"),my_bin.c_str()); return true; } my_spawns.push_back(time); return false; } void write_utmp(struct utmp&ut) { setutent(); if(!pututline(&ut)) say(_("unable to write utmp entry for \"%s\""),my_id.c_str()); endutent(); } void init_utmp(struct utmp&ut) { memset(&ut,0,sizeof ut); if(my_id.size() <= sizeof ut.ut_id) strncpy(ut.ut_id,my_id.c_str(),sizeof ut.ut_id); strncpy(ut.ut_line,my_id.c_str(),sizeof ut.ut_line); gettimeofday(&ut.ut_tv,0); } } ; #endif jinit-0.1.12/init/ServiceStarter.hh0000644000175000017500000000036707215777534014111 00000000000000#ifndef SERVICESTARTER_HH #define SERVICESTARTER_HH #include "ServiceHelper.hh" class ServiceStarter : public ServiceHelper { public: ServiceStarter(pid_t p,Service*s):ServiceHelper(p,s,Service::successful,Service::startup_failed){} } ; #endif jinit-0.1.12/init/bootstrap.hh0000644000175000017500000000147607222267316013151 00000000000000#ifndef BOOTSTRAP_HH #define BOOTSTRAP_HH #include #include #include #include #include #include "nls.hh" /* #define debug(x) say x */ #define debug(x) extern void panic(const char*f,...); extern void say(const char*f,...); extern void fprintb(int fd,const char*f,...); /* simple printf for FDs */ extern void fputsb(int fd, const char*s);/* simple fputs for FDs */ extern void*xmalloc(size_t s); extern char*xstrdup(const char*s); template static inline void xfree(T*&ptr) { free((void*)ptr); ptr=0; } extern void init_terminal(); extern int open_console(int flags); extern void do_exec(const char*bin,char*const*args) __attribute__ ((__noreturn__)); extern void clear_signals(); extern void yield(int seconds=1); extern void init_gettext(); #endif jinit-0.1.12/init/Process.hh0000644000175000017500000000070707215777534012560 00000000000000#ifndef PROCESS_HH #define PROCESS_HH #include #include "ProcessTab.hh" class Process { pid_t my_pid; public: Process(pid_t pid):my_pid(pid) { global_processtab.add_process(pid,this); } pid_t get_pid() const { return my_pid; } virtual bool died(int status) = 0; /* return true if this PROCESS should be deleted */ virtual ~Process() { global_processtab.remove_process(get_pid(),this); } } ; #endif jinit-0.1.12/init/Service.hh0000644000175000017500000000635107216246242012527 00000000000000#ifndef SERVICE_HH #define SERVICE_HH #include #include #include #include #include "bootstrap.hh" class ServiceNotification; class Service { public: enum Status { unstarted, starting, finishing, startup_failed, shutdown_failed, successful, finished, destroyed }; private: Status my_status; std::string my_name; class ServiceHelper* my_helper; typedef std::list my_watchers_type; typedef std::set my_dependants_type; my_dependants_type my_dependants; typedef my_dependants_type my_dependencies_type; my_dependencies_type my_dependencies; my_watchers_type my_watchers; public: Service(const std::string&n) ; void add_dependant(Service*s) { if(s==this)return; if(my_dependants.find(s)==my_dependants.end()) my_dependants.insert(s); } void add_dependency(Service*s) { if(s==this)return; if(my_dependencies.find(s)==my_dependencies.end()) my_dependencies.insert(s); } void del_dependant(Service*s) { my_dependants_type::iterator i = my_dependants.find(s); if(i!=my_dependants.end()) my_dependants.erase(i); else panic(_("no such dependant")); } void del_dependency(Service*s) { my_dependencies_type::iterator i = my_dependencies.find(s); if(i!=my_dependencies.end()) my_dependencies.erase(i); else panic(_("no such dependency")); } const std::string& get_name()const { return my_name; } Status get_status()const { return my_status; } bool is_successful()const { return my_status == successful; } bool is_failed()const { return my_status == startup_failed || my_status == shutdown_failed; } bool is_starting()const { return my_status == starting; } bool is_stopping()const { return my_status == finishing || my_status == finished || my_status == destroyed; } bool started()const { return my_status!=unstarted && my_status!=starting; } typedef std::list service_set; std::string list_dependants() { std::string ret; for(my_dependants_type::iterator i=my_dependants.begin();i!=my_dependants.end();i++){ ret+=(*i)->get_name(); ret+=' '; } return ret; } /*returns number of dependants stopping */ unsigned stop_dependants(); void stop(pid_t pid); void start(pid_t pid) ; void add_watcher(ServiceNotification*sn) { do_event(my_watchers.insert(my_watchers.end(),sn)); } void helper_finished(Status status) { my_helper=0; new_status(status); } ~Service(); const char*strstatus()const { switch(my_status){ case starting: return _("startup"); case finishing: return _("shutdown"); case startup_failed: return _("startup failed"); case shutdown_failed: return _("shutdown failed"); case successful: return _("running"); default: return _("[undefined service status]"); } } protected: void new_status(Status status) { my_status=status; for(my_watchers_type::iterator i=my_watchers.begin();i!=my_watchers.end();){ my_watchers_type::iterator j = i++; do_event(j); } if(my_status==finished) delete this; } void do_event(my_watchers_type::iterator i); } ; #endif jinit-0.1.12/init/ServiceStopper.hh0000644000175000017500000000036607215777534014120 00000000000000#ifndef SERVICESTOPPER_HH #define SERVICESTOPPER_HH #include "ServiceHelper.hh" class ServiceStopper : public ServiceHelper { public: ServiceStopper(pid_t p,Service*s):ServiceHelper(p,s,Service::finished,Service::shutdown_failed){} } ; #endif jinit-0.1.12/init/nls.hh0000644000175000017500000000022207215777534011726 00000000000000#ifndef NLS_HH #define NLS_HH #ifdef ENABLE_NLS # include # define _(Text) gettext (Text) #else # define _(Text) (Text) #endif #endif jinit-0.1.12/init/ProcessTab.hh0000644000175000017500000000575007653567114013207 00000000000000#ifndef PROCESSTAB_HH #define PROCESSTAB_HH #include #include #include #include #include #include #include "bootstrap.hh" #include "Service.hh" class Process; class Service; class Respawner; class ProcessTab { typedef std::map my_pidtab_type; my_pidtab_type my_pidtab; typedef std::map my_servicetab_type; my_servicetab_type my_servicetab; typedef std::map my_respawners_type; my_respawners_type my_respawners; public: void wait(); void stop_all_services(); void respawn(); void add_respawner(const std::string&id, Respawner*r) { my_respawners.insert(my_respawners_type::value_type(id,r)); } void remove_respawner(Respawner*r) { for(my_respawners_type::iterator i = my_respawners.begin(); i!=my_respawners.end(); i++) if((*i).second == r){ my_respawners.erase(i); return; } panic(_("removing respawner that does not exist!")); } void add_process(pid_t i, Process*p) { if(get_process(i)){ panic(_("adding the same process twice")); } my_pidtab.insert(my_pidtab_type::value_type(i,p)); } void add_service(std::string n,Service*s) { my_servicetab.insert(my_servicetab_type::value_type(n,s)); } void remove_service(const std::string&n,Service*s) { my_servicetab_type::iterator j = my_servicetab.find(n); if(j==my_servicetab.end() || (*j).second != s) panic(_("internal service table corrupt!")); my_servicetab.erase(j); } void remove_process(pid_t i, Process*p) { my_pidtab_type::iterator j = my_pidtab.find(i); if(j==my_pidtab.end() || (*j).second != p) { return; /* this process has already died */ } my_pidtab.erase(j); } std::string list_services(const std::string&name) { std::string ans; ans = _("Name\t\tStatus\t\tDependants\n"); for(my_servicetab_type::iterator i=my_servicetab.begin();i!=my_servicetab.end();i++){ Service*s=(*i).second; if(name.size() && s->get_name() != name) continue; ans += s->get_name(); ans += "\t\t"; ans += s->strstatus(); ans += "\t\t"; ans += s->list_dependants(); ans += '\n'; } return ans; } Respawner*get_respawner(const std::string&r) { my_respawners_type::iterator i=my_respawners.find(r); if(i==my_respawners.end())return 0; return (*i).second; } Process*get_process(pid_t p) { my_pidtab_type::iterator i=my_pidtab.find(p); if(i==my_pidtab.end())return 0; return (*i).second; } Service*get_service(const std::string&n) { my_servicetab_type::iterator i = my_servicetab.find(n); if(i==my_servicetab.end()){ debug((_("nothing known about service \"%s\""),n.c_str())); return 0; } else debug((_("service \"%s\" exists and has status %s"),n.c_str(),(*i).second->strstatus())); return (*i).second; } }; extern ProcessTab global_processtab; #endif jinit-0.1.12/init/ServiceHelper.hh0000644000175000017500000000234707215777534013704 00000000000000#ifndef SERVICEHELPER_HH #define SERVICEHELPER_HH #include "Service.hh" #include "Process.hh" class ServiceHelper:public Process { class Service*my_service; Service::Status my_success; Service::Status my_failure; public: ServiceHelper(pid_t p,Service*s,Service::Status good,Service::Status bad) : Process(p),my_service(s),my_success(good),my_failure(bad) { } bool died(int status) { if(WIFEXITED(status)) { if(!WEXITSTATUS(status)) { my_service->helper_finished(my_success); return true; } else { say(_("%s of service \"%s\" returned failure"),my_service->strstatus(),my_service->get_name().c_str()); } } else if(WIFSIGNALED(status)) { say(_("%s of service \"%s\" got hit with a signal"),my_service->strstatus(),my_service->get_name().c_str()); } else if(WIFSTOPPED(status)) { say(_("%s of service \"%s\" has been stopped"),my_service->strstatus(),my_service->get_name().c_str()); } else { say(_("something strange happened to %s of service \"%s\""),my_service->strstatus(),my_service->get_name().c_str()); } my_service->helper_finished(my_failure); return true; } Service*get_service() { return my_service; } } ; #endif jinit-0.1.12/init/SuloginProcess.hh0000644000175000017500000000050707215777534014117 00000000000000#ifndef SULOGINPROCESS_HH #define SULOGINPROCESS_HH #include #include #include #include #include "SyncProcess.hh" #include "bootstrap.hh" class SuloginProcess : public SyncProcess { public: SuloginProcess(const std::string&name,pid_t p):SyncProcess(name,p) { } }; #endif jinit-0.1.12/init/pathnames.hh0000644000175000017500000000060307222267316013103 00000000000000#ifndef PATHNAMES_HH #define PATHNAMES_HH #include #ifndef _PATH_INIT #define _PATH_INIT "/sbin/init" #endif #ifndef _PATH_SULOGIN #define _PATH_SULOGIN "/sbin/sulogin" #endif #ifndef _PATH_INITTAB #define _PATH_INITTAB "/etc/jinittab" #endif #ifndef _PATH_TTY #define _PATH_TTY "/dev/tty" #endif #ifndef _PATH_CONSOLE #define _PATH_CONSOLE "/dev/console" #endif #endif jinit-0.1.12/init/RespawnProcess.hh0000644000175000017500000000043207215777534014113 00000000000000#ifndef RESPAWNPROCESS_HH #define RESPAWNPROCESS_HH #include "Process.hh" class Respawner; class RespawnProcess : public Process { Respawner*my_respawner; public: RespawnProcess(pid_t p,Respawner*r):Process(p),my_respawner(r) { } bool died(int status); } ; #endif jinit-0.1.12/init/ServiceNotification.hh0000644000175000017500000000044707215777534015112 00000000000000#ifndef SERVICENOTIFICATION_HH #define SERVICENOTIFICATION_HH #include "Service.hh" class ServiceNotification { public: /* return true to be deleted forever */ virtual bool event(class Service*service,Service::Status status)=0; virtual ~ServiceNotification() { } } ; #endif jinit-0.1.12/init/SyncProcess.hh0000644000175000017500000000226707217176427013414 00000000000000#ifndef SYNCPROCESS_HH #define SYNCPROCESS_HH #include #include #include #include #include "Process.hh" #include "bootstrap.hh" #include "PermitSignals.hh" class SyncProcess : public Process { public: enum Status { starting, successful, failed } ; private: std::string my_name; Status my_status; public: SyncProcess(const std::string&name,pid_t p):Process(p),my_name(name), my_status(starting) { } bool died(int status) { if(WIFEXITED(status) && !WEXITSTATUS(status)){ my_status = successful; } else{ if(WIFSIGNALED(status)){ say(_("\"%s\" was killed: status is \"%s\""),my_name.c_str(),sys_siglist[WTERMSIG(status)]); } else if(!WIFEXITED(status)){ say(_("\"%s\" did not terminate normally"),my_name.c_str()); } else { say(_("\"%s\" returned failure"),my_name.c_str()); } my_status = failed; } return false; } bool is_successful()const { return my_status == successful; } bool is_finished()const { return my_status != starting; } void wait() { PermitSignals ps; while(!is_finished()) pause(); } }; #endif jinit-0.1.12/init/simpleio.hh0000644000175000017500000000221707215777534012761 00000000000000#ifndef SIMPLEIO_HH #define SIMPLEIO_HH #include #include #include "bootstrap.hh" namespace simpleio { inline bool write(int fd,const char*string,size_t length) { int r; for(size_t point=0;point0){ if(index==size) { size*=2; line = (char*)realloc((void*)line,size+1); if(!line){ say(_("out of memory reading line")); return false; } } if(line[index]==term){ line[index]=0; return true; } index++; } xfree(line); if(index!=0) say(_("unterminated line")); return false; } } #endif jinit-0.1.12/init/PermitSignals.hh0000644000175000017500000000064207370772741013716 00000000000000#ifndef PERMITSIGNALS_HH #define PERMITSIGNALS_HH #include extern const int masked_signals[]; class PermitSignals { sigset_t my_old; public: PermitSignals() { sigset_t ss; sigemptyset(&ss); for(const int*s=masked_signals;*s!=NSIG;s++) sigaddset(&ss,*s); sigprocmask(SIG_UNBLOCK,&ss,&my_old); } ~PermitSignals() { sigprocmask(SIG_SETMASK,&my_old,0); } } ; #endif jinit-0.1.12/init/Makefile.am0000644000175000017500000000066607217176427012655 00000000000000INCLUDES = -I.. 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(init_terminal): Ditto. (init_terminal),(open_console): Whoops back out this particular change ;-) seem to have mistaken something. 2000-12-18 John Fremlin * Respawner.hh (class Respawner): changed to keep track of helping respawn process after all, got rid of the two bool vars that way. jinit-0.1.12/init/main.cc0000644000175000017500000001500107314464747012044 00000000000000#define _GNU_SOURCE #include #include #include #include #include #include "bootstrap.hh" #include "pathnames.hh" #include "init_ipc/Init.hh" #include "ServiceNotification.hh" #include "Inittab.hh" #include "ProcessTab.hh" #include "SuloginProcess.hh" #include "Service.hh" #include "PermitSignals.hh" #include "simpleio.hh" sig_atomic_t global_stop_spawning = 0; const time_t respawn_period = 5*60; /*seconds */ static init_ipc::Init writer; struct sigspec { int sig; sighandler_t handler; } ; const int masked_signals[]= { SIGCHLD, SIGTERM, SIGINT, SIGQUIT, SIGUSR1, SIGUSR2, SIGALRM, SIGTSTP, NSIG } ; static void sigint(int),sigquit(int),sigusr1(int),sigusr2(int),sigterm(int); static const sigspec shutdown_sigs[] = { { SIGINT, sigint } , { SIGQUIT, sigquit } , { SIGUSR1, sigusr1 } , { SIGUSR2, sigusr2 } , { SIGTERM, sigterm }, { 0,0 } }; static void re_exec(const char*arg=0) { execl(_PATH_INIT,_PATH_INIT,arg,0); } static void sulogin() { const char*bin = global_inittab.get_sulogin().c_str(); say(_("emergency! Launching \"%s\""),bin); SuloginProcess*login; pid_t child = fork(); char *const argv[]={(char*)bin,0}; switch(child){ case -1: say(_("can't fork to launch program, execing in place")); case 0: do_exec(bin,argv); default: login = new SuloginProcess(bin,child); login->wait(); if(!login->is_successful()){ say(_("can't start emergency shell")); pause(); abort(); } else say(_("\"%s\" terminated successfully, continuing boot"),bin); } delete login; return; } static void clear_shutdown_signals() { struct sigaction sa; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); sa.sa_handler = SIG_IGN; for(const sigspec*i=shutdown_sigs; i->handler; i++){ sigaction(i->sig,&sa,0); } } static void handle_shutdown() { clear_shutdown_signals(); global_stop_spawning = 2;//won't be turned off by SIGTSTP alarm(0); if(!writer.close()) say(_("trouble closing SysV queue")); /* This should kill all services */ global_processtab.stop_all_services(); } static void do_reboot(char* howto,char*arg2=0) { const char*shutdown = global_inittab.get_shutdown().c_str(); execl(shutdown,shutdown,howto,arg2,0); say(_("unable to execute \"%s\", doing a very soft boot"),shutdown); re_exec(); } static void dump_core(int signum) { const size_t core_size = 100000; if(!fork()){ clear_signals(); struct rlimit rl; if(!getrlimit (RLIMIT_CORE,&rl)){ if(!rl.rlim_max) rl.rlim_max = core_size; rl.rlim_cur = rl.rlim_max; if(setrlimit(RLIMIT_CORE,&rl)) abort(); } else abort(); raise(signum); abort(); } } static void sig_fatal_error(int signum) { /* we can't block real error signals */ static volatile sig_atomic_t handling_fatal_error = 0; if(!handling_fatal_error++){ say(_("received fatal signal \"%s\", restarting"),sys_siglist[signum]); dump_core(signum); /* *((int*)0)=0xdeadbeef; */ } for(;;){ re_exec("panic"); if(handling_fatal_error<4){ say(_("re-exec failed. You are screwed. Pausing.")); /* *((int*)0)=0xdeadbeef; */ } pause();/*this can be broken by sending -STOP and -CONT */ } } static void sigint(int) { debug((_("sigint"))); handle_shutdown(); do_reboot("reboot"); } static void sigusr1(int) { debug((_("sigusr1"))); handle_shutdown(); do_reboot("halt"); } static void sigusr2(int) { debug((_("sigusr2"))); handle_shutdown(); do_reboot("poweroff"); } static void sigquit(int) { debug((_("sigquit"))); handle_shutdown(); do_reboot("exec",_PATH_INIT); } static void sigterm(int) { debug((_("sigterm"))); handle_shutdown(); sulogin(); do_reboot("exec",_PATH_INIT); } static void sigchld(int) { debug((_("sigchld"))); global_processtab.wait(); } static void sigtstp(int) { debug((_("sigtstp"))); global_stop_spawning ^= 1; say(global_stop_spawning ? _("spawning disabled") : _("spawning re-enabled")); if(!global_stop_spawning) global_processtab.respawn(); } static void sigalrm(int) { debug((_("sigalrm"))); global_processtab.respawn(); alarm(respawn_period); } static void sighup(int signum) { debug((_("sighup"))); dump_core(signum); } static void init_signals() { struct sigaction sa; sigset_t ss; sigfillset(&ss); sigprocmask(SIG_BLOCK,&ss,0); /* don't want half initialized handlers going off */ sa.sa_flags = 0; /* SIGINT, SIGUSR1, SIGUSR2 and SIGQUIT bring the machine down. If they interrupt each other, huge confusion may result. Other signals might as well be blocked because they're no use anyway. */ sigemptyset(&sa.sa_mask); sigaddset(&sa.sa_mask,SIGCHLD); for(const sigspec*i=shutdown_sigs; i->handler; i++) sigaddset(&sa.sa_mask,i->sig); for(const sigspec*i=shutdown_sigs; i->handler; i++){ sa.sa_handler = i->handler; sigaction(i->sig,&sa,0); } sa.sa_flags = SA_NOCLDSTOP; sa.sa_handler = sigchld; sigaction(SIGCHLD,&sa,0); signal(SIGTSTP,sigtstp); signal(SIGALRM,sigalrm); signal(SIGHUP,sighup); alarm(respawn_period); const int error_signals[] = { SIGFPE,SIGILL,SIGSEGV,SIGBUS,SIGABRT,SIGIOT,SIGSYS,SIGTRAP }; sigfillset(&sa.sa_mask); sa.sa_handler = sig_fatal_error; for(unsigned i=0;i<(sizeof(error_signals)/sizeof(int));i++) sigaction(error_signals[i],&sa,0); sigemptyset(&ss); for(const int*s=masked_signals;*s!=NSIG;s++) sigaddset(&ss,*s); sigprocmask(SIG_SETMASK,&ss,0); } int main(int argc, char **argv) { bool panicked = false; init_signals(); init_gettext(); reboot(RB_DISABLE_CAD); say(_("initializing")); global_inittab.read(_PATH_INITTAB); global_inittab.setenv(); for (char**i = argv+1; *i; i++) { if (!strcmp(*i, "single")||!strcmp(*i,"emergency")){ sulogin(); break; } if(!strcmp(*i,"panic")){ panicked = true; break; } say(_("unrecognised option \"%s\""),*i); } while(!writer.open()){ say(_("unable to start IPC service: %m")); say(_("is kernel SYSV IPC capable? Do message queues exist? (Try running ipcs -q)")); sulogin(); } if(!panicked){ /* if we bombed out last time, then don't try to boot this time as the last session is probably still around */ say(_("booting")); while(!global_inittab.boot()){ sulogin(); } } for(;;) writer.handle_connect(); return 0; } jinit-0.1.12/init/bootstrap.cc0000644000175000017500000000665607226440205013136 00000000000000#include #include #include #include #include #include #include #include #include #include #include "simpleio.hh" #include "bootstrap.hh" #include "pathnames.hh" #include "config.h" void clear_signals() { sigset_t sm; struct sigaction sa; sigfillset (&sm); sigprocmask(SIG_BLOCK,&sm,0); alarm(0); sa.sa_handler = SIG_DFL; sigemptyset(&sa.sa_mask); for(int sig = 0; sig < NSIG; sig++) sigaction(sig,&sa,0); sigprocmask(SIG_UNBLOCK,&sm,0); } static void ul_to_a(unsigned long ul,char*a) { sprintf(a,"%lx",ul); } static void vprintb(int fd, const char*f,va_list args) { char const*p; char const*arg; for(p=f;p&&*p;p++) { if(*p=='%'){ p++; switch(*p){ case 's': arg = va_arg (args, char const*); assert(arg); simpleio::write(fd,arg,strlen(arg)); break; case 'x': { unsigned long a = va_arg(args,unsigned long); char buffer[sizeof(unsigned long)*2+5]; ul_to_a(a,buffer); simpleio::write(fd,buffer,strlen(buffer)); } break; case '%': default: write(fd,p,1); break; } } else write(fd,p,1); } } void fputsb(int fd, const char*s) { simpleio::write(fd,s,strlen(s)); } void fprintb(int fd,const char*f,...) { va_list args; va_start(args,f); vprintb(fd,f,args); va_end(args); } int open_console(int flags) { int fd; /* if we're running as a normal user, we can't usefully open /dev/console, so try the tty */ if((fd = open(_PATH_TTY, flags))>=0) return fd; if((fd = open(_PATH_CONSOLE, flags))>=0) return fd; return 1; /* OK, we've lost. Perhaps stdout is open? We can't do any harm by spewing out invalid syscalls */ } void panic(const char*f,...) { int fd; va_list args,save; va_start(args,f); #ifdef __va_copy __va_copy (save, args); #else save = args; #endif closelog(); vsyslog(LOG_MAKEPRI(LOG_DAEMON, LOG_ERR),f,save); closelog(); fd = open_console(O_WRONLY); fputsb(fd,PACKAGE ": PANIC: "); vprintb(fd,f,args); va_end(args); write(fd,"\n",1); close(fd); abort(); } void say(const char*f,...) { int fd; va_list args,save; va_start(args,f); #ifdef __va_copy __va_copy (save, args); #else save = args; #endif closelog(); vsyslog(LOG_MAKEPRI(LOG_DAEMON, LOG_NOTICE),f,save); closelog(); fd = open_console(O_WRONLY); fputsb(fd,PACKAGE ": "); vprintb(fd,f,args); va_end(args); write(fd,"\n",1); close(fd); } void*xmalloc(size_t s) { void*m; if(!s)return 0; m=malloc(s); if(!m)say(_("out of memory!")); return m; } char*xstrdup(const char*s) { char*t; if(!s)return 0; t=strdup(s); if(!t)say(_("out of memory!")); return t; } void init_terminal() { int fd=open_console(O_RDWR); if(fd<0)return; dup2(fd,0);//stdin dup2(fd,1);//stdout dup2(fd,2);//stderr for(;fd>2;fd--) close(fd); } void do_exec(const char*bin,char*const*args) { clear_signals(); if(setsid()==-1) say(_("unable to setsid for \"%s\""),bin); init_terminal(); execvp(bin,args); say(_("unable to execvp \"%s\""),bin); _exit(1); } void yield(int seconds) { time_t start = time(0); time_t end = start+seconds; while(time(0) #include "Inittab.hh" static char*after_ws(char*line) { while(*line && isspace(*line))line++; return line; } static bool split(char*line,char*&lhs,char*&rhs) { char*end; char*sign; while(isspace(*line))line++; lhs = line; for(char*p=line;*p;p++){ if(*p=='=') { sign = p; goto got_sign; } if(!isspace(*p))end = p; } return false; // terminated early got_sign: end[1] = 0; *sign = 0; char*q=sign+1; while(isspace(*q)) q++; rhs = q; /* clip off whitespace at the end of the RHS */ while(*q){ if(!isspace(*q))end = q; q++; } end[1] = 0; return true; } void Inittab::read(const char*filename) { int fd = open(filename,O_RDONLY,0); if(fd==-1){ say(_("unable to open inittab \"%s\""),filename); return; } char*line; unsigned lineno=0; for(;simpleio::read_line(fd,line);xfree(line)){ lineno++; bool do_export = false; for(char*p=line;*p;p++) if(*p=='#') { *p = 0; break; } char*first = after_ws(line); if(!*first) continue; if(!strncmp(first,"export",6)&&isspace(first[6])){ first += 6; first = after_ws(first); if(!*first) { say(_("empty export in inittab")); continue; } do_export = true; } char*lhs,*rhs; if(!split(first,lhs,rhs)){ say(_("bad inittab line")); continue; } set_var(lhs,rhs); if(do_export) set_envvar(lhs,rhs); } close(fd); } Inittab global_inittab; jinit-0.1.12/init/ProcessTab.cc0000644000175000017500000000325007217267216013162 00000000000000#include "ProcessTab.hh" #include "Process.hh" #include "Inittab.hh" #include "Respawner.hh" #include "bootstrap.hh" void ProcessTab::respawn() { for(my_respawners_type::iterator i = my_respawners.begin(); i!=my_respawners.end(); i++) { (*i).second->spawn(); } } void ProcessTab::stop_all_services() { for(my_respawners_type::iterator i = my_respawners.begin(); i!=my_respawners.end(); i++) delete (*i).second; my_respawners.clear(); unsigned old_stopping=0; for(my_servicetab_type::reverse_iterator i=my_servicetab.rbegin(); i!=my_servicetab.rend(); i++) if(global_inittab.stop_service((*i).second))old_stopping++; const int timeout = 30; const int improvement = 15; int time_left = timeout; for(;;) { unsigned stopping=0; for(my_servicetab_type::iterator i=my_servicetab.begin(); i!=my_servicetab.end();i++) if((*i).second->is_stopping()) stopping++; if(!stopping) break; { PermitSignals ps; yield(); } if(stopping==old_stopping){ if(!--time_left){ say(_("timed out waiting for services to stop")); break; } } else{ time_left += improvement; old_stopping = stopping; } } } void ProcessTab::wait() { pid_t victim; int status; while((victim = waitpid(WAIT_ANY,&status,WNOHANG))){ if(victim == -1) return; my_pidtab_type::iterator j = my_pidtab.find(victim); if(j==my_pidtab.end())continue; Process*process = (*j).second; if(!process)continue; if(process->died(status)) delete process; else my_pidtab.erase(j); } } ProcessTab global_processtab; jinit-0.1.12/init/Service.cc0000644000175000017500000000346007216246242012513 00000000000000#include "Service.hh" #include "ServiceStopper.hh" #include "ServiceStarter.hh" #include "ProcessTab.hh" #include "ServiceNotification.hh" #include "Inittab.hh" #include "bootstrap.hh" Service::Service(const std::string&n):my_status(unstarted),my_helper(0) { my_name = n; debug((_("service \"%s\" (%x) created"),n.c_str(),this)); global_processtab.add_service(n,this); } Service::~Service() { debug((_("service \"%s\" (%x) destroyed"),get_name().c_str(),this)); new_status(destroyed); for(my_dependencies_type::iterator i=my_dependencies.begin();i!=my_dependencies.end();i++){ (*i)->del_dependant(this); } for(my_dependants_type::iterator i=my_dependants.begin();i!=my_dependants.end();i++){ (*i)->del_dependency(this); } for(my_watchers_type::iterator i=my_watchers.begin();i!=my_watchers.end();i++){ delete *i; } my_dependencies.clear(); my_dependants.clear(); my_watchers.clear(); if(my_helper){ delete my_helper; my_helper = 0; } global_processtab.remove_service(my_name,this); } unsigned Service::stop_dependants() { unsigned d=0; if(my_status == successful){ new_status(finishing); } for(my_dependants_type::iterator i=my_dependants.begin();i!=my_dependants.end();i++){ if(global_inittab.stop_service(*i)) d++; } return d; } void Service::stop(pid_t p) { my_helper = new ServiceStopper(p,this); } void Service::start(pid_t pid) { new_status(starting); my_helper = new ServiceStarter(pid,this); } void Service::do_event(Service::my_watchers_type::iterator i) { debug((_("sending callback for service \"%s\", status: %s"),my_name.c_str(),strstatus())); if((*i)->event(this,my_status)){ debug((_("removing callback"))); delete *i; my_watchers.erase(i); } } jinit-0.1.12/init/RespawnProcess.cc0000644000175000017500000000024607215777534014104 00000000000000#include "Respawner.hh" #include "RespawnProcess.hh" bool RespawnProcess::died(int status) { my_respawner->died(status); my_respawner->spawn(); return true; } jinit-0.1.12/init-shutdown/0002777000175000017500000000000010211432436012527 500000000000000jinit-0.1.12/init-shutdown/Makefile.am0000644000175000017500000000016507222267316014512 00000000000000sbin_PROGRAMS = init-shutdown INCLUDES = -I.. -I../init LDADD = ../init/bootstrap.o init_shutdown_SOURCES = main.ccjinit-0.1.12/init-shutdown/Makefile.in0000664000175000017500000003115510211432430014507 00000000000000# Makefile.in generated by automake 1.8.5 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or 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maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \ uninstall-am uninstall-info-am uninstall-sbinPROGRAMS # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: jinit-0.1.12/init-shutdown/main.cc0000644000175000017500000001170607222267316013714 00000000000000#include #include #include #include #include #include #include #include "bootstrap.hh" #include "pathnames.hh" #include "simpleio.hh" #include "config.h" const bool testing = false; /* The reason this code was taken out of init, is that if you upgrade your init, then it can't umount the fs it's on, as it has been deleted (valid on kernel 2.4). Therefore it execs this program to do it */ static void do_reboot(int howto) { reboot(howto); while(1)pause(); } static void killall() { say(_("killing (TERM) all processes")); if(!testing && kill(-1,SIGTERM)!=-1){ say(_("waiting for them to die")); yield(5); say(_("killing (KILL) all processes dead")); if(kill(-1,SIGKILL)!=-1){ say(_("waiting for them to be cleaned up")); yield(5); } } } static bool force_umount(const char*mntpnt) { if(umount2(mntpnt,MNT_FORCE)==-1){ return false; } sync(); return true; } static bool force_mount_readonly(const char*mntpnt) { if(mount(mntpnt,mntpnt,0,MS_MGC_VAL|MS_REMOUNT|MS_RDONLY,0)==-1){ say(_("error remounting \"%s\" readonly"),mntpnt); return false; } sync(); return true; } static void umount_all_filesystems() { /* don't want to use getmntent as that'll pull in all of stdio FIXME: this is no longer valid now */ const char*mtabs[] = { "/proc/mounts", "/etc/mtab", "/etc/fstab", 0 } ; typedef std::list mpoints_type; mpoints_type mpoints; int fd; const char**mtab; for(mtab=mtabs;*mtab;mtab++){ fd=open(*mtab,O_RDONLY); if(fd!=-1) { goto got_mtab; } say(_("unable to open \"%s\" to list mount points"),*mtab); } say(_("unable to find a list of filesystems, trying to umount /")); if(!force_umount("/")) if(!force_mount_readonly("/")) say(_("couldn't umount / or remount / readonly")); return; got_mtab: say(_("umounting filesystems in \"%s\""),*mtab); char*line=0; while(simpleio::read_line(fd,line)){ if(!line || !line[0])break; char*first_space=strchr(line,' '); if(!first_space){ say(_("unable to interpret mtab line \"%s\" from %s"),line,*mtab); break; } first_space++; char*next_space=strchr(first_space,' '); if(!next_space){ say(_("can't find mount point in \"%s\" from %s"),line,*mtab); break; } *next_space=0; mpoints.push_back(first_space); free(line);line=0; } if(line)free(line); close(fd); bool made_progress; do{ made_progress = false; for(mpoints_type::iterator i=mpoints.begin();i!=mpoints.end();) if(force_umount((*i).c_str())){ i=mpoints.erase(i); made_progress = true; } else i++; }while(made_progress); bool failing=false; for(mpoints_type::iterator i=mpoints.begin();i!=mpoints.end();i++){ say(_("unable to umount \"%s\", trying to remount readonly"),(*i).c_str()); if(!force_mount_readonly((*i).c_str())) failing=true; } if(failing) { say(_("some filesystems couldn't be umounted, fix it for next time")); sync(); sleep(10); } } static void do_shutdown() { killall(); umount_all_filesystems(); sync(); /* you can never tell whether the hw buffers are flushed */ yield(); sync(); say(_("that's all folks!")); sync(); sleep(2); sync(); } static void try_exec(const char*cmd) { execl(cmd,cmd,0); say(_("could not execute \"%s\""),cmd); } static void print_usage(const char*pn) { fprintf(stderr,"%s from %s %s\n",pn,PACKAGE,VERSION); fputs("This program kills all processes and umounts all filesystems.\n",stderr); fputs("The first argument says what should be done afterwards\n",stderr); fputs("one of: halt, reboot, powerdown or exec [program-name]\n",stderr); fputs("This program should only be called by init.\n",stderr); } static int bad_cmdline(const char**argv) { if(getpid()==1){ say(_("%s called by init with bad command line: \"%s\" \"%s\""), argv[0], argv[1] ? argv[1] : "", argv[1] && argv[2] ? argv[2] : "" ); do_shutdown(); say(_("%s was called by init with bad command line!"),argv[0]); do_reboot(RB_HALT_SYSTEM); return 1; } else{ print_usage(argv[0]); return 1; } } int main(int argc, char** argv) { if(argc<2) return bad_cmdline((const char**)argv); say(_("shuting down, afterwards going to %s %s"), argv[1],argv[2] ? argv[2] : ""); do_shutdown(); char*cmd =argv[1]; if(!strcmp(cmd,"exec")){ if(!argv[2]) return bad_cmdline((const char**)argv); init_terminal(); try_exec(argv[2]); try_exec(_PATH_INIT); say(_("could not exec anything!")); if(getpid()==1) do_reboot(RB_HALT_SYSTEM); return 1; } if(!strcmp(cmd,"halt")) do_reboot(RB_HALT_SYSTEM); if(!strcmp(cmd,"reboot")) do_reboot(RB_AUTOBOOT); if(!strcmp(cmd,"poweroff")) do_reboot(RB_POWER_OFF); return bad_cmdline((const char**)argv); } jinit-0.1.12/need/0002777000175000017500000000000010211432436010626 500000000000000jinit-0.1.12/need/error.hh0000644000175000017500000000027307653567173012243 00000000000000#ifndef ERROR_HH #define ERROR_HH #include extern const char* argv0; #define _(x) (x) #define error(x) do { std::cerr << argv0 << ": " << x << std::endl; } while(0) #endif jinit-0.1.12/need/Makefile.am0000644000175000017500000000017007216233761012605 00000000000000INCLUDES = -I.. 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using namespace std; class CommandState:public init_ipc::User { std::string my_action; bool my_is_open; bool my_no_talkback; bool my_has_errors; public: CommandState():my_is_open(false), my_no_talkback(false), my_has_errors(false) { } void no_talkback() { close_talkback(); my_no_talkback = true; } void prepare() { if(!my_is_open){ if(!open_command()){ error(_("unable to open write path to init")); exit(1); } if(!my_no_talkback && !open_talkback()){ error(_("unable to open read path from init")); exit(1); } my_is_open = true; } } bool has_errors() { return my_has_errors; } void give_error(void) { my_has_errors = true; } void service(const std::string&name) { prepare(); if(my_action=="start"||my_action=="need"){ if(!start_service(name)) give_error(); return; } if(my_action=="stop"||my_action=="r"){ if(!stop_service(name)) give_error(); return; } if(my_action=="restart"){ if(!stop_service(name)) give_error(); if(!start_service(name)) give_error(); return; } if(my_action=="forget"){ if(!forget_service(name)) give_error(); return; } if(my_action=="dont-spawn"){ if(!forget_respawn(name)) give_error(); return; } if(my_action=="show"){ if(!show_service(name)) give_error(); return; } error(_("don't know what to do with ") << name); give_error(); return; } void set_action(const std::string&action) { my_action = action; } protected: bool show_service(const std::string&name) { char*result; if(!(result=list_services(name))){ error(_("unable to get list of services")); return false; } cout << result << endl; delete result; return true; } } ; struct Argument { char const* name; char const* explanation; struct value { enum type { service, none }; } ; value::type type; void (*handler)(const char*name,const char**value,CommandState&state); bool is_valid()const { return handler; } bool try_match(char const*n,const char**arg,CommandState&state)const { if(name) { if(strcmp(n,name)) return false; arg++; } if((!arg[1]) && (type!=value::none)) return false; handler(n,arg,state); return true; } char const*type_to_string()const { const char* table[]= { "", _("name of a service"), }; return (table[type]); } } ; namespace clo { static void silent(const char*,const char**,CommandState&state) { int fd = open("/dev/null",O_WRONLY); if(fd<0) { state.give_error(); close(STDERR_FILENO); } dup2(fd,STDERR_FILENO); close(fd); } static void help(const char*,const char**,CommandState&); static void version(const char*,const char**,CommandState&) { cout << PACKAGE << " " << VERSION << endl; } static void list(const char*,const char**,CommandState&state) { char*list; state.prepare(); if(!(list=state.list_services())){ state.give_error(); error(_("unable to get list of services")); return; } cout << list << endl; delete list; } static void change_action(const char*name,const char**,CommandState&state) { const char*i=name; while(*i && *i=='-')i++; state.set_action(i); } static void do_action(const char*,const char**value,CommandState&state) { state.service(*value); } static void respawn(const char*,const char**value,CommandState&state) { state.prepare(); bool ok = state.respawn(*value,value+1); state.close_talkback(); exit( ok ? EXIT_SUCCESS : EXIT_FAILURE); } static void fork(const char*,const char**value,CommandState&state) { state.no_talkback(); switch(::fork()){ case -1: error(_("unable to fork")); exit(10); case 0: if(setsid()==-1){ error(_("unable to setsid")); exit(10); } break; default: exit(EXIT_SUCCESS); } } } static const Argument arguments[]= { {"--help",_("print command line help"),Argument::value::none,clo::help }, {"--version",_("print version info"),Argument::value::none,clo::version }, {"--stop",_("stop following services"),Argument::value::none,clo::change_action } , {"--start",_("start following services"),Argument::value::none,clo::change_action }, {"--restart",_("restart following services"),Argument::value::none,clo::change_action }, {"--forget",_("forget following services"),Argument::value::none,clo::change_action }, {"--show",_("show the state of the following services"),Argument::value::none,clo::change_action }, {"--list",_("list services"),Argument::value::none,clo::list }, {"--display-services",_("list services (simpleinit compatibility)"), Argument::value::none,clo::list }, {"--need",_("start following services (simpleinit compatibility)"),Argument::value::none,clo::change_action }, {"-r",_("stop following services (simpleinit compatibility)"),Argument::value::none,clo::change_action }, {"--respawn",_("[id] [program] [argument]* -- tell init to keep the following program running"),Argument::value::none,clo::respawn }, {"--dont-spawn",_("tell init not to keep the following utmp id running"),Argument::value::none,clo::change_action }, {"--not-crucial",_("return before service is started (do not depend on service)"),Argument::value::none,clo::fork }, {"--silent",_("don't whine about problems"),Argument::value::none,clo::silent }, {0,_("default: start service specified"),Argument::value::none,clo::do_action }, { 0,0,Argument::value::none,0 } } ; static void print_help(ostream& stream) { stream << _("Command line help") << endl << endl; for(Argument const*i=arguments;i->is_valid();i++) stream << setw(12) << (i->name ? i->name : "") << setw(16) << " " << _(i->explanation) << endl; } namespace clo { static void help(const char*,const char**,CommandState&) { print_help(cout); } } int main(int argc,char*argv[]) { argv0 = argv[0]; CommandState state; char*after_last_slash=argv[0]; for(char*i=argv[0];*i;i++) if(*i=='/')after_last_slash=i+1; state.set_action(after_last_slash); srand (time (0) ^ getpid()); if(argc<2){ error(_("specify at least one service to start on the command line (try --help)")); return 1; } for(char**i=argv+1;*i;i++) { for(Argument const*a=arguments;a->is_valid();a++) if(a->try_match(i[0],(const char**)i,state)) goto have_found; havent_found: error(_("bad command line argument: ") << i[0]); print_help(cerr); return 3; have_found: continue; } if(state.has_errors()){ error(_("errors occured")); return 1; } return 0; 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then exit 0; fi . init-script-lib fatal need devfs # Make sure that root at least is mounted readonly important mount -o remount,ro / important fsck -a -A -V -C # -a: repair things without asking # -A: all filesystems in fstab # -C: show progress bars # -V: verbose if [ $? -gt 1 ] ; then # can't use HERE documents as they are implemented as writing to a # temporary file. echo "**************************************************" echo Code echo "0 No errors" echo "1 File system errors corrected" echo "2 System should be rebooted" echo "4 File system errors left uncorrected" echo "8 Operational error" echo "16 Usage or syntax error" echo "128 Shared library error" echo "" echo "Codes from fsck(8) manpage of E2fsprogs 1.19." echo "" echo "**************************************************" say starting console sulogin || bash || sh || exit 1 exec $0 start fi exit 0 jinit-0.1.12/example-setup/etc/initscripts/hooks0000755000175000017500000000037407216745555016645 00000000000000#! /bin/sh # hooks: connect to all sorts of user scripts . init-script-lib if [ "$1" != "start" ]; 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then say making empty modules.conf fatal need filesystems echo -n > /etc/modules.conf fi if [ /etc/modules.conf -nt "/lib/modules/$(uname -r)/modules.dep" ]; then say building kernel module symbol dependency information fatal need filesystems fatal need ldconfig fatal depmod -a fi ;; stop) say cleaning kernel modules fatal rmmod --stacks --all ;; esacjinit-0.1.12/example-setup/etc/initscripts/network0000755000175000017500000000047107222236062017172 00000000000000#! /bin/sh # network: Network initialization script # John Fremlin 7 October 2000 . init-script-lib case $1 in start) # Attach the loopback device. fatal ifconfig lo 127.0.0.1 fatal route add -host 127.0.0.1 lo exit 0 ;; stop) fatal ifconfig lo down exit 0 ;; esacjinit-0.1.12/example-setup/etc/initscripts/soft-settings0000755000175000017500000000031707417401644020317 00000000000000#! /bin/sh # soft-settings: Proc tweaking script . init-script-lib if [ "$1" != "start" ]; then exit 0; fi if [ ! -e /proc/1 ]; then important mount procfs /proc -t proc fi fatal sysctl -p exit 0 jinit-0.1.12/example-setup/etc/initscripts/swaps0000755000175000017500000000027407222236062016637 00000000000000#! /bin/sh . init-script-lib case $1 in start) fatal need filesystems say engaging swapfiles fatal swapon -a ;; stop) say disengaging swapfiles fatal swapoff -a ;; esac jinit-0.1.12/example-setup/etc/initscripts/daemon-lib0000755000175000017500000000043507412663563017523 00000000000000#! /bin/sh function daemon_nop { :; } # Might return 0 but be unsuccessful function daemon_kill { daemon="$1" pidfile=/var/run/$daemon.pid if [ -e $pidfile ]; then if kill `cat $pidfile`; then return 0 fi fi trap daemon_nop TERM kill `pidof $daemon` return $? } jinit-0.1.12/example-setup/etc/initscripts/terminals0000755000175000017500000000100307412666103017473 00000000000000#! /bin/sh . init-script-lib ttys="vc/2 vc/3 vc/4 vc/5 vc/6 vc/7 vc/8" case $1 in start) important need filesystems fatal need devfs need --silent --not-crucial --stop boot-terminal for i in $ttys; do need --respawn $i /sbin/gogetty /dev/$i \ /sbin/login-agent /sbin/login -g console done exit 0 ;; stop) # if we're bringing the system down, init can't # communicate so need won't work for i in $ttys; do need --silent --not-crucial --dont-spawn $i done exit 0 ;; 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then exit 0; fi . init-script-lib say loading a pretty font if [ -e /etc/consolefont ]; then important setfont `cat /etc/consolefont` fi say loading default keymap loadkeys -q /etc/defkeymap # -d: load default map # -q: quiet setterm -blank 10 -powersave on < /dev/console jinit-0.1.12/jinit.lsm0000664000175000017500000000124210211432437011461 00000000000000Begin4 Title: jinit Version: 0.1.12 Entered-date: 2005-03-02 Description: jinit is a powerful init based on an extended version of Richard Gooch's need(8) scheme. See http://www.atnf.csiro.au/~rgooch/linux/boot-scripts/. It uses SysV message queues to communicate with support programs. Keywords: init need init-shutdown jinit shutdown Author: John Fremlin Maintained-by: John Fremlin Primary-site: http://ape.n3.net/programs/linux/jinit download/jinit-0.1.12.tar.gz Alternate-site: ftp.ibiblio.org /pub/Linux/system/daemons/init jinit-0.1.12.tar.gz jinit-0.1.12.lsm Original-site: Platforms: Copying-policy: GPL End