diff options
| -rw-r--r-- | bootctl/bootctl.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/bootctl/bootctl.c b/bootctl/bootctl.c index 55eb5bf4..58fdbb69 100644 --- a/bootctl/bootctl.c +++ b/bootctl/bootctl.c @@ -132,13 +132,14 @@ static int parse_slot(int pos, int argc, char *argv[]) exit(EX_USAGE); return -1; } - int ret = strtol(argv[pos], NULL, 10); - if (ret == LONG_MIN || ret == LONG_MAX) { + errno = 0; + long int ret = strtol(argv[pos], NULL, 10); + if (errno != 0 || ret > INT_MAX || ret < 0) { usage(stderr, argc, argv); exit(EX_USAGE); return -1; } - return ret; + return (int)ret; } int main(int argc, char *argv[]) |