diff options
| -rw-r--r-- | util/cutils.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/util/cutils.c b/util/cutils.c index c2250d1ba5..144b25c05a 100644 --- a/util/cutils.c +++ b/util/cutils.c @@ -537,16 +537,17 @@ int parse_debug_env(const char *name, int max, int initial) { char *debug_env = getenv(name); char *inv = NULL; - int debug; + long debug; if (!debug_env) { return initial; } + errno = 0; debug = strtol(debug_env, &inv, 10); if (inv == debug_env) { return initial; } - if (debug < 0 || debug > max) { + if (debug < 0 || debug > max || errno != 0) { fprintf(stderr, "warning: %s not in [0, %d]", name, max); return initial; } |