diff options
Diffstat (limited to 'src/splash.c')
| -rw-r--r-- | src/splash.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/splash.c b/src/splash.c new file mode 100644 index 0000000..3a4edfd --- /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 <errno.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +#include <rc.h> + +#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); +} |