X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=tcp.c;fp=tcp.c;h=30aecadf668f726d7467d2c4cafd476ed8d9dcfb;hp=fef986eafabd56c8d70ca9bfb5829ddfcbf872ba;hb=67effbeb26b0c36b05232a67cc977abee3ddbc35;hpb=3d0a14e323d9223f35036f25b0b7e601ccaaac5d

diff --git a/tcp.c b/tcp.c
index fef986e..30aecad 100644
--- a/tcp.c
+++ b/tcp.c
@@ -132,6 +132,99 @@ tcp_recv(STREAM s, uint32 length)
 	return s;
 }
 
+/* Establish a connection on the TCP layer */
+int
+tcp_connect(char *server, int port)
+{
+        int true_value = 1;
+	int sock;
+
+#ifdef IPv6
+
+        int n;
+        struct addrinfo hints, *res, *ressave;
+        char tcp_port_rdp_s[10];
+
+        snprintf(tcp_port_rdp_s, 10, "%d", tcp_port_rdp);
+
+        memset(&hints, 0, sizeof(struct addrinfo));
+        hints.ai_family = AF_UNSPEC;
+        hints.ai_socktype = SOCK_STREAM;
+
+        n = getaddrinfo(server, tcp_port_rdp_s, &hints, &res);
+
+        if (n < 0)
+        {
+                error("getaddrinfo: %s\n", gai_strerror(n));
+                return -1;
+        }
+
+        ressave = res;
+        sock = -1;
+        while (res)
+        {
+                sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+                if (!(sock < 0))
+                {
+                        if (connect(sock, res->ai_addr, res->ai_addrlen) == 0)
+                                break;
+                        close(sock);
+                        sock = -1;
+                }
+                res = res->ai_next;
+        }
+        freeaddrinfo(ressave);
+
+        if (sock == -1)
+        {
+                error("%s: unable to connect\n", server);
+                return -1;
+        }
+
+#else /* no IPv6 support */
+
+        struct hostent *nslookup;
+        struct sockaddr_in servaddr;
+
+        if ((nslookup = gethostbyname(server)) != NULL)
+        {
+                memcpy(&servaddr.sin_addr, nslookup->h_addr, sizeof(servaddr.sin_addr));
+        }
+        else if ((servaddr.sin_addr.s_addr = inet_addr(server)) == INADDR_NONE)
+        {
+                error("%s: unable to resolve host\n", server);
+                return -1;
+        }
+
+        if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+        {
+                error("socket: %s\n", strerror(errno));
+                return -1;
+        }
+
+        servaddr.sin_family = AF_INET;
+        servaddr.sin_port = htons(port);
+
+        if (connect(sock, (struct sockaddr *) &servaddr, sizeof(struct sockaddr)) < 0)
+        {
+                error("connect: %s\n", strerror(errno));
+                close(sock);
+                return -1;
+        }
+
+#endif /* IPv6 */
+
+        setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void *) &true_value, sizeof(true_value));
+
+        in.size = 4096;
+        in.data = (uint8 *) xmalloc(in.size);
+
+        out.size = 4096;
+        out.data = (uint8 *) xmalloc(out.size);
+
+        return sock;
+}
+
 /* Establish a connection on the TCP layer */
 BOOL
 tcp_recv_connect(int server_sock)