- fix "noreduce" flag of config_read (didn't work at all, at least for me).

- convert init's inittab parsing to the new config parser:
function                                             old     new   delta
config_read                                          393     386      -7
static.actions                                        72      64      -8
.rodata                                           121772  121764      -8
parse_inittab                                        554     393    -161
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-184)           Total: -184 bytes

1 files changed, 69 insertions, 5 deletions

diff --git a/init/init.c b/init/init.c
index 4b2bd9c77..3f16551ea 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 {