Add support for proxying through an external command.

[oweals/tinc.git] / src / netutl.c

diff --git a/src/netutl.c b/src/netutl.c
index 11a06ed4847c44b69db822be634ab1a6297e751c..c57b24ff1e2dd86a554b24e63187b3885ca0a164 100644 (file)
--- a/src/netutl.c
+++ b/src/netutl.c
@@ -83,8 +83,10 @@ void sockaddr2str(const sockaddr_t *sa, char **addrstr, char **portstr) {
        int err;
 
        if(sa->sa.sa_family == AF_UNKNOWN) {
-               *addrstr = xstrdup(sa->unknown.address);
-               *portstr = xstrdup(sa->unknown.port);
+               if(addrstr)
+                       *addrstr = xstrdup(sa->unknown.address);
+               if(portstr)
+                       *portstr = xstrdup(sa->unknown.port);
                return;
        }