diff options
Diffstat (limited to 'utils')
-rw-r--r-- | utils/iftest.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/utils/iftest.c b/utils/iftest.c index 63cf163..a8117fa 100644 --- a/utils/iftest.c +++ b/utils/iftest.c @@ -2,6 +2,7 @@ #include <stdio.h> #include <stdlib.h> +#include <string.h> #include <errno.h> #include <net/if.h> @@ -25,7 +26,11 @@ int main(int argc, char *argv[]) exit(EXIT_FAILURE); } - nlif_query(h); + if (nlif_query(h) == -1) { + fprintf(stderr, "failed query to retrieve interfaces: %s\n", + strerror(errno)); + exit(EXIT_FAILURE); + } idx = if_nametoindex(argv[1]); |