diff options
Diffstat (limited to 'init/init.c')
| -rw-r--r-- | init/init.c | 74 |
1 files changed, 69 insertions, 5 deletions
diff --git a/init/init.c b/init/init.c index 4b2bd9c..3f16551 100644 --- a/init/init.c +++ b/init/init.c @@ -43,6 +43,7 @@ #define SHUTDOWN 0x40 #define RESTART 0x80 +/* #define STR_SYSINIT "\x01" #define STR_RESPAWN "\x02" #define STR_ASKFIRST "\x04" @@ -51,7 +52,7 @@ #define STR_CTRLALTDEL "\x20" #define STR_SHUTDOWN "\x40" #define STR_RESTART "\x80" - +*/ /* Set up a linked list of init_actions, to be read from inittab */ struct init_action { struct init_action *next; @@ -558,12 +559,11 @@ static void kill_all_processes(void) static void halt_reboot_pwoff(int sig) { - const char *m; + const char *m = "halt"; int rb; kill_all_processes(); - m = "halt"; rb = RB_HALT_SYSTEM; if (sig == SIGTERM) { m = "reboot"; @@ -687,6 +687,7 @@ static void delete_init_action(struct init_action *action) */ static void parse_inittab(void) { +#if 0 FILE *file; char buf[COMMAND_SIZE]; @@ -774,6 +775,67 @@ static void parse_inittab(void) next_line: ; } fclose(file); +#else + char *token[4]; + static const char actions[] ALIGN1 = { + "sysinit\0""respawn\0""askfirst\0""wait\0""once\0" + "ctrlaltdel\0""shutdown\0""restart\0" + }; + enum {STR_SYSINIT=0, STR_RESPAWN, STR_ASKFIRST, STR_WAIT, STR_ONCE, + STR_CTRLALTDEL, STR_SHUTDOWN, STR_RESTART}; + + parser_t *parser = config_open(INITTAB); + /* No inittab file -- set up some default behavior */ + if (parser == NULL) { + /* Reboot on Ctrl-Alt-Del */ + new_init_action(CTRLALTDEL, "reboot", ""); + /* Umount all filesystems on halt/reboot */ + new_init_action(SHUTDOWN, "umount -a -r", ""); + /* Swapoff on halt/reboot */ + if (ENABLE_SWAPONOFF) + new_init_action(SHUTDOWN, "swapoff -a", ""); + /* Prepare to restart init when a QUIT is received */ + new_init_action(RESTART, "init", ""); + /* Askfirst shell on tty1-4 */ + new_init_action(ASKFIRST, bb_default_login_shell, ""); + new_init_action(ASKFIRST, bb_default_login_shell, VC_2); + new_init_action(ASKFIRST, bb_default_login_shell, VC_3); + new_init_action(ASKFIRST, bb_default_login_shell, VC_4); + /* sysinit */ + new_init_action(SYSINIT, INIT_SCRIPT, ""); + + return; + } + /* optional_tty:ignored_runlevel:action:command + * i.e. 4 tokens, minimum number of tokens is 2 ("::sysinit:echo foo") + * We require tokens not to be collapsed -- need exactly 4 tokens. + */ + while (config_read(parser, token, -4, 2, ":", '#') >= 0) { + int action = -1; + char *tty = token[0]; + char *action_string = token[2]; + char *command = token[3]; + + if (action_string) + action = index_in_strings(actions, action_string); + if (action < 0 || !command || !strlen(command)) + goto bad_entry; + if (tty) { + /* turn .*TTY -> /dev/TTY */ + if (!strncmp(tty, "/dev/", 5)) + tty += 5; + tty = concat_path_file("/dev/", tty); + } else + tty = ""; /* XXX: ugh. */ + new_init_action (1<<action, command, tty); + if (ENABLE_FEATURE_CLEAN_UP) + free(tty); + continue; + bad_entry: + message(L_LOG | L_CONSOLE, "Bad inittab entry: %s", parser->line); + } + config_close(parser); +#endif } #if ENABLE_FEATURE_USE_INITTAB @@ -866,7 +928,7 @@ int init_main(int argc UNUSED_PARAM, char **argv) /* Figure out where the default console should be */ console_init(); set_sane_term(); - chdir("/"); + xchdir("/"); setsid(); { const char *const *e; @@ -875,7 +937,8 @@ int init_main(int argc UNUSED_PARAM, char **argv) putenv((char *) *e); } - if (argv[1]) setenv("RUNLEVEL", argv[1], 1); + if (argv[1]) + setenv("RUNLEVEL", argv[1], 1); /* Hello world */ message(MAYBE_CONSOLE | L_LOG, "init started: %s", bb_banner); @@ -900,6 +963,7 @@ int init_main(int argc UNUSED_PARAM, char **argv) if (argv[1] && (!strcmp(argv[1], "single") || !strcmp(argv[1], "-s") || LONE_CHAR(argv[1], '1')) ) { + /* ??? shouldn't we set RUNLEVEL="b" here? */ /* Start a shell on console */ new_init_action(RESPAWN, bb_default_login_shell, ""); } else { |