dist/sockets: two fixes after refactor

fixes corrupted intro message and re-enables build of proxy in all
target.

dist/common/base.c

@@ -350,17 +350,19 @@ int BasePeerEvent(struct Peer *peer, uint32_t events) {
   }
 
   // receive intro message
+  ssize_t ret;
   if (!peer->is_listener) {
     /* not a listener, so we're expecting an fd for the shm region */
-    if (UxsocketRecvFd(peer->sock_fd, peer->intro_local,
-        sizeof(peer->intro_local), &peer->shm_fd))
+    ret = UxsocketRecvFd(peer->sock_fd, peer->intro_local,
+        sizeof(peer->intro_local), &peer->shm_fd);
+    if (ret <= 0)
       return 1;
 
     if (!(peer->shm_base = ShmMap(peer->shm_fd, &peer->shm_size)))
       return 1;
   } else {
     /* as a listener, we use our local shm region, so no fd is sent to us */
-    ssize_t ret = recv(peer->sock_fd, peer->intro_local,
+    ret = recv(peer->sock_fd, peer->intro_local,
         sizeof(peer->intro_local), 0);
     if (ret <= 0) {
       perror("PeerEvent: recv failed");
@@ -368,6 +370,7 @@ int BasePeerEvent(struct Peer *peer, uint32_t events) {
     }
   }
 
+  peer->intro_local_len = ret;
   peer->intro_valid_local = true;
 
   // pass intro along

dist/rules.mk

@@ -35,9 +35,9 @@ $(bin_net_sockets): $(SOCKETS_OBJS) $(COMMON_OBJS) -lpthread
 CLEAN := $(bin_net_rdma) $(bin_net_sockets) \
 	$(RDMA_OBJS) $(SOCKETS_OBJS) $(COMMON_OBJS)
 
-ALL :=
+ALL := $(bin_net_sockets)
 ifeq ($(ENABLE_DIST),y)
-ALL += $(bin_net_sockets) $(bin_net_rdma)
+ALL += $(bin_net_rdma)
 endif
 
 include mk/subdir_post.mk

dist/sockets/net_sockets.c

@@ -488,7 +488,7 @@ int BaseOpPassIntro(struct Peer *peer) {
   if (!msg)
     return 1;
 
-  msg->msg_len = offsetof(struct SockMsg, entries.data) + peer->intro_local_len;
+  msg->msg_len = offsetof(struct SockMsg, intro.data) + peer->intro_local_len;
   msg->id = peer - peers;
   msg->msg_type = kMsgIntro;
   msg->intro.payload_len = peer->intro_local_len;