Make statd_get_socket actually honour the 'port' parameter.

[nfs-utils.git] / utils / statd / rmtcall.c

diff --git a/utils/statd/rmtcall.c b/utils/statd/rmtcall.c
index 911a93236937245b2f9505faf9e6795c71ce623c..474bbb4242b3a254ddb5af426abb53b130b9356c 100644 (file)
--- a/utils/statd/rmtcall.c
+++ b/utils/statd/rmtcall.c
@@ -65,12 +65,29 @@ statd_get_socket(int port)
 
        memset(&sin, 0, sizeof(sin));
        sin.sin_family = AF_INET;
-       sin.sin_port = port;
+       sin.sin_addr.s_addr = INADDR_ANY;
+       /*
+        * If a local hostname is given (-n option to statd), bind to the address
+        * specified. This is required to support clients that ignore the mon_name in
+        * the statd protocol but use the source address from the request packet.
+        */
+       if (MY_NAME) {
+               struct hostent *hp = gethostbyname(MY_NAME);
+               if (hp)
+                       sin.sin_addr = *(struct in_addr *) hp->h_addr;
+       }
+       if (port != 0) {
+               sin.sin_port = htons(port);
+               if (bind(sockfd, &sin, sizeof(sin)) == 0)
+                       goto out_success;
+               note(N_CRIT, "statd: failed to bind to outgoing port, %d\n"
+                               "       falling back on randomly chosen port\n", port);
+       }
        if (bindresvport(sockfd, &sin) < 0) {
                dprintf(N_WARNING,
                        "process_hosts: can't bind to reserved port\n");
        }
-
+out_success:
        return sockfd;
 }