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ykpamcfg.c: Check also for negative return code of snprintf()

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This commit is contained in:
Karol Babioch 2018-05-17 16:21:33 +02:00
parent f94095879a
commit 2f172e3227
1 changed files with 3 additions and 1 deletions
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4
ykpamcfg.c
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@ -95,6 +95,7 @@ parse_args(int argc, char **argv,
unsigned int *iterations) unsigned int *iterations)
{ {
int c; int c;
int i;
while((c = getopt(argc, argv, optstring)) != -1) { while((c = getopt(argc, argv, optstring)) != -1) {
switch (c) { switch (c) {
@ -105,7 +106,8 @@ parse_args(int argc, char **argv,
*slot = 2; *slot = 2;
break; break;
case 'A': case 'A':
if (snprintf(*action, ACTION_MAX_LEN, "%s", optarg) >= ACTION_MAX_LEN) { i = snprintf(*action, ACTION_MAX_LEN, "%s", optarg);
if (i < 0 || i >= ACTION_MAX_LEN) {
fprintf(stderr, "action too long: %s\n", optarg); fprintf(stderr, "action too long: %s\n", optarg);
exit(1); exit(1);
} }