- fix regression introduced in fping 4.3

bind to source only when option was set.
this allows to work in jails and lxc with custom IPs.
this allows IPv4 only and IPv6 only hosts

diff --git a/src/fping.c b/src/fping.c
index 0bc2d81d6bfcedbafce9c332b4da8d020ef7916c..aa87c2dd03ab1f9209450b7003e320aac7ea18ee 100644 (file)
--- a/src/fping.c
+++ b/src/fping.c
@@ -1060,11 +1060,11 @@ int main(int argc, char** argv)
         exit(num_noaddress ? 2 : 1);
     }
 
-    if (socket4 >= 0) {
+    if (src_addr_set && socket4 >= 0) {
         socket_set_src_addr_ipv4(socket4, &src_addr, (socktype4 == SOCK_DGRAM) ? &ident4 : NULL);
     }
 #ifdef IPV6
-    if (socket6 >= 0) {
+    if (src_addr6_set && socket6 >= 0) {
         socket_set_src_addr_ipv6(socket6, &src_addr6, (socktype6 == SOCK_DGRAM) ? &ident6 : NULL);
     }
 #endif