updates.

[silc.git] / lib / silcutil / win32 / silcwin32net.c

diff --git a/lib/silcutil/win32/silcwin32net.c b/lib/silcutil/win32/silcwin32net.c
index 13032ce7058f5a1db00e445e0cf081ead7f68a4d..25bde1903928d5202bf1f9f052dce486de974e5e 100644 (file)
--- a/lib/silcutil/win32/silcwin32net.c
+++ b/lib/silcutil/win32/silcwin32net.c
@@ -99,7 +99,8 @@ void silc_net_close_server(int sock)
    socket or -1 on error. This blocks the process while trying to create
    the connection. */
 
-int silc_net_create_connection(int port, char *host)
+int silc_net_create_connection(const char *local_ip, int port, 
+                              const char *host)
 {
   SOCKET sock;
   int rval, err;
@@ -111,7 +112,8 @@ int silc_net_create_connection(int port, char *host)
   /* Do host lookup */
   dest = gethostbyname(host);
   if (!dest) {
-    SILC_LOG_ERROR(("Network (%s) unreachable", host));
+    SILC_LOG_ERROR(("Network (%s) unreachable: could not resolve the "
+                   "IP address", host));
     return -1;
   }
 
@@ -139,7 +141,9 @@ int silc_net_create_connection(int port, char *host)
   }
 
   /* Set appropriate options */
+#if defined(TCP_NODELAY)
   silc_net_set_socket_opt(sock, IPPROTO_TCP, TCP_NODELAY, 1);
+#endif
   silc_net_set_socket_opt(sock, SOL_SOCKET, SO_KEEPALIVE, 1);
 
   SILC_LOG_DEBUG(("Connection created"));
@@ -152,14 +156,60 @@ int silc_net_create_connection(int port, char *host)
    connection returns directly. To get the result of the connect() one
    must select() the socket and read the result after it's ready. */
 
-/* XXX Is the socket on WIN32 always non-blocking? */
-
-int silc_net_create_connection_async(int port, char *host)
+int silc_net_create_connection_async(const char *local_ip, int port, 
+                                    const char *host)
 {
+  SOCKET sock;
+  int rval, err;
+  struct hostent *dest;
+  struct sockaddr_in desthost;
+
   SILC_LOG_DEBUG(("Creating connection (async) to host %s port %d", 
                  host, port));
 
-  return silc_net_create_connection(port, host);
+  /* Do host lookup */
+  dest = gethostbyname(host);
+  if (!dest) {
+    SILC_LOG_ERROR(("Network (%s) unreachable: could not resolve the "
+                   "IP address", host));
+    return -1;
+  }
+
+  /* Set socket information */
+  memset(&desthost, 0, sizeof(desthost));
+  desthost.sin_port = htons(port);
+  desthost.sin_family = AF_INET;
+  memcpy(&desthost.sin_addr, dest->h_addr_list[0], sizeof(desthost.sin_addr));
+
+  /* Create the connection socket */
+  sock = socket(AF_INET, SOCK_STREAM, 0);
+  if (sock == INVALID_SOCKET) {
+    SILC_LOG_ERROR(("Cannot create socket"));
+    return -1;
+  }
+
+  /* Connect to the host */
+  rval = connect(sock, (struct sockaddr *)&desthost, sizeof(desthost));
+  err = WSAGetLastError();
+  if (rval == SOCKET_ERROR && err != WSAEWOULDBLOCK) {
+    SILC_LOG_ERROR(("Cannot connect to remote host"));
+    shutdown(sock, 2);
+    closesocket(sock);
+    return -1;
+  }
+
+  /* Set socket to nonblocking mode */
+  silc_net_set_socket_nonblock(sock);
+
+  /* Set appropriate options */
+#if defined(TCP_NODELAY)
+  silc_net_set_socket_opt(sock, IPPROTO_TCP, TCP_NODELAY, 1);
+#endif
+  silc_net_set_socket_opt(sock, SOL_SOCKET, SO_KEEPALIVE, 1);
+
+  SILC_LOG_DEBUG(("Connection created"));
+
+  return sock;
 }
 
 /* Closes the connection by closing the socket connection. */
@@ -186,3 +236,58 @@ bool silc_net_addr2bin(const char *addr, unsigned char *bin,
 
   return ret != INADDR_NONE;
 }
+
+/* Converts the IP number string from numbers-and-dots notation to
+   binary form in network byte order. */
+
+bool silc_net_addr2bin_ne(const char *addr, unsigned char *bin,
+                         uint32 bin_len)
+{
+  unsigned long ret;
+
+  ret = inet_addr(addr);
+
+  if (bin_len < 4)
+    return FALSE;
+
+  SILC_PUT32_MSB(ret, bin);
+
+  return ret != INADDR_NONE;
+}
+
+/* Set socket to non-blocking mode. */
+
+int silc_net_set_socket_nonblock(int sock)
+{
+  unsigned long on = 1;
+  return ioctlsocket(sock, FIONBIO, &on);
+}
+
+/* Init Winsock2. */
+
+bool silc_net_win32_init(void)
+{
+  int ret, sopt = SO_SYNCHRONOUS_NONALERT;
+  WSADATA wdata;
+  WORD ver = MAKEWORD(1, 1);
+
+  ret = WSAStartup(ver, &wdata);
+  if (ret)
+    return FALSE;
+
+  /* Allow using the SOCKET's as file descriptors so that we can poll
+     them with SILC Scheduler. */
+  ret = setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char *)&sopt,
+                  sizeof(sopt));
+  if (ret)
+    return FALSE;
+
+  return TRUE;
+}
+
+/* Uninit Winsock2 */
+
+void silc_net_win32_uninit(void)
+{
+  WSACleanup();
+}