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https://github.com/sheumann/hush.git
synced 2024-08-27 03:29:05 +00:00
findInitPid() has been implemented and it seems to work.
reboot has been changed to take advantage of findInitPid();
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395b216a2e
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@ -26,5 +26,6 @@
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extern int
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reboot_main(int argc, char ** argv)
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{
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exit( kill(1, SIGUSR2));
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/* don't assume init's pid == 1 */
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exit( kill(findInitPid(), SIGUSR2));
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}
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@ -157,6 +157,7 @@ extern void write_mtab(char* blockDevice, char* directory,
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extern void erase_mtab(const char * name);
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extern int check_wildcard_match(const char* text, const char* pattern);
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extern long getNum (const char *cp);
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extern pid_t findInitPid();
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#if defined BB_MTAB
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3
reboot.c
3
reboot.c
@ -26,5 +26,6 @@
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extern int
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reboot_main(int argc, char ** argv)
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{
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exit( kill(1, SIGUSR2));
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/* don't assume init's pid == 1 */
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exit( kill(findInitPid(), SIGUSR2));
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}
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43
utility.c
43
utility.c
@ -1068,14 +1068,39 @@ extern long getNum (const char *cp)
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}
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#endif
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#if 1
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/* findInitPid()
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*
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* This finds the pid of init (which is not always 1).
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* Currently, it's implemented by rummaging through the proc filesystem.
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*
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* [return]
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* 0 failure
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* pid when init's pid is found.
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*/
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extern pid_t
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findInitPid()
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{
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pid_t init_pid;
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char filename[256];
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char buffer[256];
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/* no need to opendir ;) */
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for (init_pid = 1; init_pid < 65536; init_pid++) {
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FILE *status;
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sprintf(filename, "/proc/%d/status", init_pid);
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status = fopen(filename, "r");
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if (!status) { continue; }
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fgets(buffer, 256, status);
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fclose(status);
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if ( (strcmp(&buffer[6], "init\n") == 0)) {
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return init_pid;
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}
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}
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return 0;
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}
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#endif
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/* END CODE */
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