initial import of qtrdesktop - not yet opiefied but working

1 files changed, 181 insertions, 0 deletions

diff --git a/noncore/net/opierdesktop/tcp.cpp b/noncore/net/opierdesktop/tcp.cpp
new file mode 100644
index 0000000..0a2ca3e
--- a/dev/null
+++ b/noncore/net/opierdesktop/tcp.cpp
@@ -0,0 +1,181 @@
+/*
+   rdesktop: A Remote Desktop Protocol client.
+   Protocol services - TCP layer
+   Copyright (C) Matthew Chapman 1999-2002
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+        #include <unistd.h>     /* select read write close */
+        #include <sys/socket.h>         /* socket connect setsockopt */
+        #include <sys/time.h>   /* timeval */
+        #include <netdb.h>      /* gethostbyname */
+        #include <netinet/in.h>         /* sockaddr_in */
+        #include <netinet/tcp.h>/* TCP_NODELAY */
+        #include <arpa/inet.h>  /* inet_addr */
+#include <fcntl.h>
+        #include <errno.h>      /* errno */
+#include "rdesktop.h"
+
+#ifndef INADDR_NONE
+#define INADDR_NONE ((unsigned long) -1)
+#endif
+
+static int sock;
+static struct stream in;
+static struct stream out;
+extern int tcp_port_rdp;
+
+/* Initialise TCP transport data packet */
+STREAM
+tcp_init(unsigned int maxlen)
+{
+        if (maxlen > out.size)
+        {
+                out.data = (unsigned char*)xrealloc(out.data, maxlen);
+                out.size = maxlen;
+        }
+
+        out.p = out.data;
+        out.end = out.data + out.size;
+        return &out;
+}
+
+/* Send TCP transport data packet */
+void
+tcp_send(STREAM s)
+{
+        int length = s->end - s->data;
+        int sent, total = 0;
+
+        while (total < length)
+        {
+                sent = send(sock, s->data + total, length - total, 0);
+                if (sent == -1 && errno == EWOULDBLOCK)
+                {
+                        usleep(1000);
+                }
+                else if (sent <= 0)
+                {
+                        error("send: %s\n", strerror(errno));
+                        return;
+                }
+                else
+                        total += sent;
+        }
+}
+
+/* Receive a message on the TCP layer */
+STREAM
+tcp_recv(unsigned int length)
+{
+        int rcvd = 0;
+
+        if (length > in.size)
+        {
+                in.data = (unsigned char*)xrealloc(in.data, length);
+                in.size = length;
+        }
+
+        in.end = in.p = in.data;
+
+        while (length > 0)
+        {
+                if (!ui_select(sock))
+                        /* User quit */
+                        return NULL;
+
+                rcvd = recv(sock, in.end, length, 0);
+                if (rcvd == -1 && errno == EWOULDBLOCK)
+                {
+                        usleep(1000);
+                }
+                else if (rcvd == -1)
+                {
+                        error("recv: %s\n", strerror(errno));
+                        return NULL;
+                }
+                else if (rcvd == 0)
+                        return NULL;
+                else
+                {
+                        in.end += rcvd;
+                        length -= rcvd;
+                }
+        }
+
+        return &in;
+}
+
+/* Establish a connection on the TCP layer */
+BOOL
+tcp_connect(char *server)
+{
+        struct hostent *nslookup;
+        struct sockaddr_in servaddr;
+        int l_true = 1;
+
+        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 False;
+        }
+
+        if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+        {
+                error("socket: %s\n", strerror(errno));
+                return False;
+        }
+
+        servaddr.sin_family = AF_INET;
+        servaddr.sin_port = htons(tcp_port_rdp);
+
+        if (connect(sock, (struct sockaddr *) &servaddr, sizeof(struct sockaddr)) < 0)
+        {
+                error("connect: %s\n", strerror(errno));
+                close(sock);
+                return False;
+        }
+
+        /* set non blocking */
+        {
+                int op;
+                op = fcntl(sock, F_GETFL);
+                op |= O_NONBLOCK;
+                fcntl(sock, F_SETFL, op);
+        }
+
+        //fcntl(sock, O_NONBLOCK);
+        setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void *) &l_true, sizeof(l_true));
+
+        in.size = 4096;
+        in.data = (unsigned char*)xmalloc(in.size);
+
+        out.size = 4096;
+        out.data = (unsigned char*)xmalloc(out.size);
+
+        return True;
+}
+
+/* Disconnect on the TCP layer */
+void
+tcp_disconnect(void)
+{
+        close(sock);
+}