diff options
author | Roy Marples <roy@marples.name> | 2007-04-05 11:18:42 +0000 |
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committer | Roy Marples <roy@marples.name> | 2007-04-05 11:18:42 +0000 |
commit | 5af58b45146ab5253ca964738f4e45287bf963d4 (patch) | |
tree | 68d3a9a61fa55dd7fe273db776c375f797edaa5b /src/splash.c |
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.
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 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 <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); +} |