kayprish/timeoutd
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Close all FD's instead of just 0,1,2 on startup

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Changed the startup in the main function to loop through all file
descriptors from getrlimit(RLIMIT_NOFILE) down to 0, and close them all
to make sure none are left opened by the parent process.
This commit is contained in:
Petar Kapris 2020-12-10 14:36:21 +01:00
parent 27a087ac3d
commit 6fc342929c
1 changed files with 4 additions and 3 deletions
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7
timeoutd.c
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@ -351,9 +351,10 @@ char *argv[];
if (pid > 0) if (pid > 0)
exit(0); exit(0);
close(0); for (int i = getrlimit(RLIMIT_NOFILE); i >= 0; --i) {
close(1); close(i);
close(2); }
if (setsid() < 0) { if (setsid() < 0) {
openlog("timeoutd", OPENLOG_FLAGS, LOG_DAEMON); openlog("timeoutd", OPENLOG_FLAGS, LOG_DAEMON);
syslog(LOG_ERR, "Failed to set new session ID at startup."); syslog(LOG_ERR, "Failed to set new session ID at startup.");