diff --git a/src/apk.c b/src/apk.c index 4062e56..2a8c959 100644 --- a/src/apk.c +++ b/src/apk.c @@ -126,7 +126,8 @@ int main(int argc, char **argv) } for (opt = &generic_options[0], sopt = short_options; opt->name != NULL; opt++) { - if (opt->flag == NULL && isalnum(opt->val)) { + if (opt->flag == NULL && + opt->val <= 0xff && isalnum(opt->val)) { *(sopt++) = opt->val; if (opt->has_arg != no_argument) *(sopt++) = ':';