1 files changed, 18 insertions, 0 deletions
diff --git a/lib/net.c b/lib/net.c
index 8969306b..880ad89b 100644
--- a/lib/net.c
+++ b/lib/net.c
@@ -53,6 +53,24 @@ int xconnect(struct addrinfo *ai_arg)
   return fd;
 }
 
+int xbind(struct addrinfo *ai_arg)
+{
+  struct addrinfo *ai;
+  int fd = -1;
+
+  // Try all the returned addresses. Report errors if last entry can't connect.
+  for (ai = ai_arg; ai; ai = ai->ai_next) {
+    fd = (ai->ai_next ? socket : xsocket)(ai->ai_family, ai->ai_socktype,
+      ai->ai_protocol);
+    if (!bind(fd, ai->ai_addr, ai->ai_addrlen)) break;
+    else if (!ai->ai_next) perror_exit("connect");
+    close(fd);
+  }
+  freeaddrinfo(ai_arg);
+
+  return fd;
+}
+
 int xpoll(struct pollfd *fds, int nfds, int timeout)
 {
   int i;