cfparser: better error handling for set_int

diff --git a/usual/cfparser.c b/usual/cfparser.c
index 934fb3dd8acf0d88f3567f999700ca5b30828e0b..c1207fb8534afc2204a34203a15f143321a84800 100644 (file)
--- a/usual/cfparser.c
+++ b/usual/cfparser.c
@@ -352,9 +352,15 @@ bool cf_set_int(struct CfValue *cv, const char *value)
        int *ptr = cv->value_p;
        char *end;
        long val;
+
+       errno = 0;
        val = strtol(value, &end, 0);
-       if (end == value)
+       if (end == value || *end != 0) {
+               /* reject partial parse */
+               if (!errno)
+                       errno = EINVAL;
                return false;
+       }
        *ptr = val;
        return true;
 }