diff options
| -rw-r--r-- | plugins-root/check_icmp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/plugins-root/check_icmp.c b/plugins-root/check_icmp.c index 6a883a82..98891f02 100644 --- a/plugins-root/check_icmp.c +++ b/plugins-root/check_icmp.c @@ -467,10 +467,14 @@ main(int argc, char **argv) unsigned short size; switch(arg) { case '4': + if (address_family != -1) + crash("Multiple protocol versions not supported"); address_family = AF_INET; break; case '6': #ifdef USE_IPV6 + if (address_family != -1) + crash("Multiple protocol versions not supported"); address_family = AF_INET6; #else usage (_("IPv6 support not available\n")); |