diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rc/supervise-daemon.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/rc/supervise-daemon.c b/src/rc/supervise-daemon.c index 2080e4a6..bd24d782 100644 --- a/src/rc/supervise-daemon.c +++ b/src/rc/supervise-daemon.c @@ -66,7 +66,7 @@ static struct pam_conv conv = { NULL, NULL}; const char *applet = NULL; const char *extraopts = NULL; -const char *getoptstring = "d:e:g:I:Kk:N:p:r:Su:1:2:" \ +const char *getoptstring = "d:e:g:I:Kk:N:p:r:R:Su:1:2:" \ getoptstring_COMMON; const struct option longopts[] = { { "chdir", 1, NULL, 'd'}, @@ -79,6 +79,7 @@ const struct option longopts[] = { { "pidfile", 1, NULL, 'p'}, { "user", 1, NULL, 'u'}, { "chroot", 1, NULL, 'r'}, + { "respawn-limit", 1, NULL, 'R'}, { "start", 0, NULL, 'S'}, { "stdout", 1, NULL, '1'}, { "stderr", 1, NULL, '2'}, @@ -95,6 +96,7 @@ const char * const longopts_help[] = { "Match pid found in this file", "Change the process user", "Chroot to this directory", + "set a respawn limit", "Start daemon", "Redirect stdout to file", "Redirect stderr to file", @@ -424,7 +426,13 @@ int main(int argc, char **argv) char *p; char *token; int i; + int n; char exec_file[PATH_MAX]; + int respawn_count = 0; + int respawn_max = 10; + int respawn_period = 5; + time_t respawn_now= 0; + time_t first_spawn= 0; struct passwd *pw; struct group *gr; FILE *fp; @@ -519,6 +527,17 @@ int main(int argc, char **argv) ch_root = optarg; break; + case 'R': /* --respawn-limit unlimited|count:period */ + if (strcasecmp(optarg, "unlimited") == 0) { + respawn_max = 0; + respawn_period = 0; + } else { + n = sscanf(optarg, "%d:%d", &respawn_max, &respawn_period); + if (n != 2 || respawn_max < 1 || respawn_period < 1) + eerrorx("Invalid respawn-limit setting '%s'", optarg); + } + break; + case 'u': /* --user <username>|<uid> */ { p = optarg; @@ -713,6 +732,22 @@ int main(int argc, char **argv) syslog(LOG_INFO, "stopping %s, pid %d", exec, child_pid); kill(child_pid, SIGTERM); } else { + if (respawn_max > 0 && respawn_period > 0) { + respawn_now = time(NULL); + if (first_spawn == 0) + first_spawn = respawn_now; + if (respawn_now - first_spawn > respawn_period) { + respawn_count = 0; + first_spawn = 0; + } else + respawn_count++; + if (respawn_count >= respawn_max) { + syslog(LOG_INFO, "respawned \"%s\" too many times, " + "exiting", exec); + exiting = true; + continue; + } + } if (WIFEXITED(i)) syslog(LOG_INFO, "%s, pid %d, exited with return code %d", exec, child_pid, WEXITSTATUS(i)); |