diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-08-13 11:41:57 +0200 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-08-13 11:41:57 +0200 |
commit | 72d2eacd06d9783122c75b0e6ba238d4b82340be (patch) | |
tree | 439bfc8b36313dc75f969db32406056dc0b67d4f /utils | |
parent | 01db81597502c6016888411983db33b7718ca810 (diff) |
utils: iftest: check return value of nlif_query
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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]); |