since UDP is unreliable, send the CALLIT broadcasts 3 times, one second apart when...

diff --git a/lib/libnfs-sync.c b/lib/libnfs-sync.c
index 4e83b5b33e7557ebb91a7143aaed2c78cf85e563..e964c144b17fc23a164a5913792bd43450d8f447 100644 (file)
--- a/lib/libnfs-sync.c
+++ b/lib/libnfs-sync.c
@@ -1180,8 +1180,14 @@ void callit_cb(struct rpc_context *rpc, int status, void *data _U_, void *privat
                srv_data->status = -1;
                return;
        }
-
        
+       /* check for dupes */
+       for (srvr = srv_data->srvrs; srvr; srvr = srvr->next) {
+               if (!strcmp(hostdd, srvr->addr)) {
+                       return 0;
+               }
+       }
+
        srvr = malloc(sizeof(struct nfs_server_list));
        if (srvr == NULL) {
                rpc_set_error(rpc, "Malloc failed when allocating server structure");   
@@ -1259,7 +1265,7 @@ struct nfs_server_list *nfs_find_local_servers(void)
        struct nfs_list_data data = {0, NULL};
        struct timeval tv_start, tv_current;
        struct ifconf ifc;
-       int size;
+       int size, loop;
        struct pollfd pfd;
 
        rpc = rpc_init_udp_context();
@@ -1292,35 +1298,37 @@ struct nfs_server_list *nfs_find_local_servers(void)
                }
        }       
 
-       if (send_nfsd_probes(rpc, &ifc, &data) != 0) {
-               rpc_destroy_context(rpc);
-               free(ifc.ifc_buf);      
-               return NULL;
-       }
-
-       gettimeofday(&tv_start, NULL);
-       for(;;) {
-               int mpt;
-
-               pfd.fd = rpc_get_fd(rpc);
-               pfd.events = rpc_which_events(rpc);
-
-               gettimeofday(&tv_current, NULL);
-               mpt = 1000
-               -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
-               +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
-
-               if (poll(&pfd, 1, mpt) < 0) {
-                       free_nfs_srvr_list(data.srvrs);
+       for (loop=0; loop<3; loop++) {
+               if (send_nfsd_probes(rpc, &ifc, &data) != 0) {
                        rpc_destroy_context(rpc);
+                       free(ifc.ifc_buf);      
                        return NULL;
                }
-               if (pfd.revents == 0) {
-                       break;
-               }
+
+               gettimeofday(&tv_start, NULL);
+               for(;;) {
+                       int mpt;
+
+                       pfd.fd = rpc_get_fd(rpc);
+                       pfd.events = rpc_which_events(rpc);
+
+                       gettimeofday(&tv_current, NULL);
+                       mpt = 1000
+                       -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
+                       +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
+
+                       if (poll(&pfd, 1, mpt) < 0) {
+                               free_nfs_srvr_list(data.srvrs);
+                               rpc_destroy_context(rpc);
+                               return NULL;
+                       }
+                       if (pfd.revents == 0) {
+                               break;
+                       }
                
-               if (rpc_service(rpc, pfd.revents) < 0) {
-                       break;
+                       if (rpc_service(rpc, pfd.revents) < 0) {
+                               break;
+                       }
                }
        }