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Warn when setproctitle() gets called before initialization

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Try to give a helpful message in case the program is not initializing
the setproctitle() machinery.
This commit is contained in:
Guillem Jover 2013-07-13 02:11:20 +02:00
parent c5b9590287
commit 948bcf1db8
1 changed files with 9 additions and 1 deletions
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10
src/setproctitle.c
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@ -28,6 +28,7 @@
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <unistd.h>
#include <string.h>
@ -41,6 +42,7 @@ static struct {
/* Pointer to original nul character within base. */
char *nul;
bool warned;
bool reset;
int error;
} SPT;
@ -228,8 +230,14 @@ setproctitle_impl(const char *fmt, ...)
char *nul;
int len;
if (SPT.base == NULL)
if (SPT.base == NULL) {
if (!SPT.warned) {
warnx("setproctitle not initialized, please either call "
"setproctitle_init() or link against libbsd-ctor.");
SPT.warned = true;
}
return;
}
if (fmt) {
if (fmt[0] == '-') {