findInitPid() has been implemented and it seems to work.
reboot has been changed to take advantage of findInitPid();
diff --git a/init/reboot.c b/init/reboot.c
index 53a3520..17ec9f8 100644
--- a/init/reboot.c
+++ b/init/reboot.c
@@ -26,5 +26,6 @@
extern int
reboot_main(int argc, char ** argv)
{
- exit( kill(1, SIGUSR2));
+ /* don't assume init's pid == 1 */
+ exit( kill(findInitPid(), SIGUSR2));
}
diff --git a/internal.h b/internal.h
index 830d30e..de13bb2 100644
--- a/internal.h
+++ b/internal.h
@@ -157,6 +157,7 @@
extern void erase_mtab(const char * name);
extern int check_wildcard_match(const char* text, const char* pattern);
extern long getNum (const char *cp);
+extern pid_t findInitPid();
#if defined BB_MTAB
diff --git a/reboot.c b/reboot.c
index 53a3520..17ec9f8 100644
--- a/reboot.c
+++ b/reboot.c
@@ -26,5 +26,6 @@
extern int
reboot_main(int argc, char ** argv)
{
- exit( kill(1, SIGUSR2));
+ /* don't assume init's pid == 1 */
+ exit( kill(findInitPid(), SIGUSR2));
}
diff --git a/utility.c b/utility.c
index de7a0fb..42ee00c 100644
--- a/utility.c
+++ b/utility.c
@@ -1068,14 +1068,39 @@
}
#endif
+#if 1
+/* findInitPid()
+ *
+ * This finds the pid of init (which is not always 1).
+ * Currently, it's implemented by rummaging through the proc filesystem.
+ *
+ * [return]
+ * 0 failure
+ * pid when init's pid is found.
+ */
+extern pid_t
+findInitPid()
+{
+ pid_t init_pid;
+ char filename[256];
+ char buffer[256];
+
+ /* no need to opendir ;) */
+ for (init_pid = 1; init_pid < 65536; init_pid++) {
+ FILE *status;
+
+ sprintf(filename, "/proc/%d/status", init_pid);
+ status = fopen(filename, "r");
+ if (!status) { continue; }
+ fgets(buffer, 256, status);
+ fclose(status);
+
+ if ( (strcmp(&buffer[6], "init\n") == 0)) {
+ return init_pid;
+ }
+ }
+ return 0;
+}
+#endif
/* END CODE */
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