From 5af58b45146ab5253ca964738f4e45287bf963d4 Mon Sep 17 00:00:00 2001 From: Roy Marples Date: Thu, 5 Apr 2007 11:18:42 +0000 Subject: Rewrite the core parts in C. We now provide librc so other programs can query runlevels, services and state without using bash. We also provide libeinfo so other programs can easily use our informational functions. As such, we have dropped the requirement of using bash as the init script shell. We now use /bin/sh and have strived to make the scripts as portable as possible. Shells that work are bash and dash. busybox works provided you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you should disable find too. zsh and ksh do not work at this time. Networking support is currently being re-vamped also as it was heavily bash array based. As such, a new config format is available like so config_eth0="1.2.3.4/24 5.6.7.8/16" or like so config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'" We will still support the old bash array format provided that /bin/sh IS a link it bash. ChangeLog for baselayout-1 can be found in our SVN repo. --- src/splash.c | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 src/splash.c (limited to 'src/splash.c') diff --git a/src/splash.c b/src/splash.c new file mode 100644 index 00000000..3a4edfd9 --- /dev/null +++ b/src/splash.c @@ -0,0 +1,130 @@ +/* + splash.c + + Splash plugin for the Gentoo RC sytsem. + splashutils needs to be re-written to support our new system. + Until then, we provide this compatible module which calls the + legacy bash scripts which is nasty. And slow. + + For any themes that use scripts, such as the live-cd theme, + they will have to source /sbin/splash-functions.sh themselves like so + + if ! type splash >/dev/null 2>/dev/null ; then + . /sbin/splash-functions.sh + fi + + */ + +#include +#include +#include +#include + +#include + +#ifndef LIBDIR +# define LIBDIR "lib" +#endif + +#define SPLASH_CACHEDIR "/" LIBDIR "/splash/cache" + +#define SPLASH_CMD "bash -c 'export SOFTLEVEL='%s'; export BOOTLEVEL=${RC_BOOTLEVEL}; export DEFAULTLEVEL=${RC_DEFAULTLEVEL}; export svcdir=${RC_SVCDIR}; add_suffix() { echo \"$@\"; }; . /etc/init.d/functions.sh; . /sbin/splash-functions.sh; splash %s %s %s'" + +int _splash_hook (rc_hook_t hook, const char *name); + +static int _do_splash (const char *cmd, const char *arg1, const char *arg2) +{ + char *c; + int l; + char *soft = getenv ("RC_SOFTLEVEL"); + + if (! cmd || ! soft) + return (-1); + + l = strlen (SPLASH_CMD) + strlen (soft) + strlen (cmd); + if (arg1) + l += strlen (arg1); + if (arg2) + l += strlen (arg2); + c = malloc (sizeof (char *) * l); + if (! c) + return (-1); + + snprintf (c, l, SPLASH_CMD, + arg1 ? strcmp (arg1, RC_LEVEL_SYSINIT) == 0 ? RC_LEVEL_BOOT : soft : soft, + cmd, arg1 ? arg1 : "", arg2 ? arg2 : ""); + l = system (c); + free (c); + return (l); +} + +int _splash_hook (rc_hook_t hook, const char *name) +{ + switch (hook) + { + case rc_hook_runlevel_stop_in: + if (strcmp (name, RC_LEVEL_SYSINIT) != 0) + return (_do_splash ("rc_init", name, NULL)); + break; + case rc_hook_runlevel_start_out: + if (strcmp (name, RC_LEVEL_SYSINIT) == 0) + return (_do_splash ("rc_init", name, NULL)); + else + return (_do_splash ("rc_exit", name, NULL)); + default: ; + } + + /* We don't care about splash unless we're changing runlevels */ + if (! rc_runlevel_starting () && + ! rc_runlevel_stopping ()) + return (0); + + switch (hook) + { + case rc_hook_service_stop_in: + /* We need to stop localmount from unmounting our cache dir. + Luckily plugins can add to the unmount list. */ + if (name && strcmp (name, "localmount") == 0) + { + char *umounts = getenv ("RC_NO_UMOUNTS"); + char *new; + int i = strlen (SPLASH_CACHEDIR) + 1; + + if (umounts) + i += strlen (umounts) + 1; + + new = malloc (sizeof (char *) * i); + if (new) + { + if (umounts) + snprintf (new, i, "%s:%s", umounts, SPLASH_CACHEDIR); + else + snprintf (new, i, "%s", SPLASH_CACHEDIR); + } + + /* We unsetenv first as some libc's leak memory if we overwrite + a var with a bigger value */ + if (umounts) + unsetenv ("RC_NO_UMOUNTS"); + setenv ("RC_NO_UMOUNTS", new, 1); + + free (new); + } + return (_do_splash ("svc_stop", name, NULL)); + case rc_hook_service_stop_out: + if (rc_service_state (name, rc_service_stopped)) + return (_do_splash ("svc_stopped", name, "0")); + else + return (_do_splash ("svc_started", name, "1")); + case rc_hook_service_start_in: + return (_do_splash ("svc_start", name, NULL)); + case rc_hook_service_start_out: + if (rc_service_state (name, rc_service_stopped)) + return (_do_splash ("svc_started", name, "1")); + else + return (_do_splash ("svc_started", name, "0")); + default: ; + } + + return (0); +} -- cgit v1.2.3