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Clear errno before call to strtol(3).

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Since strtol(3) doesn't clear errno on success, anything that sets
errno prior to this call will make it look like the call failed. This
happens when built with ASAN.

Signed-off-by: Dan Albert <danalbert@google.com>
Acked-by: Steve Lawrence <slawrence@tresys.com>
This commit is contained in:
Dan Albert 2014-12-10 11:28:44 -08:00 committed by Steve Lawrence
parent 823ebc8c6b
commit b1bbd3030b
1 changed files with 3 additions and 1 deletions
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4
checkpolicy/checkpolicy.c
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@ -456,7 +456,9 @@ int main(int argc, char **argv)
mlspol = 1;
break;
case 'c':{
long int n = strtol(optarg, NULL, 10);
long int n;
errno = 0;
n = strtol(optarg, NULL, 10);
if (errno) {
fprintf(stderr,
"Invalid policyvers specified: %s\n",