888 lines
23 KiB
C
888 lines
23 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2012
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* libxup main file
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*/
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#include "xup.h"
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/******************************************************************************/
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/* returns error */
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int DEFAULT_CC
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lib_recv(struct mod *mod, char *data, int len)
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{
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int rcvd;
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if (mod->sck_closed)
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{
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return 1;
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}
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while (len > 0)
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{
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rcvd = g_tcp_recv(mod->sck, data, len, 0);
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if (rcvd == -1)
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{
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if (g_tcp_last_error_would_block(mod->sck))
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{
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if (mod->server_is_term(mod))
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{
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return 1;
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}
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g_tcp_can_recv(mod->sck, 10);
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}
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else
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{
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return 1;
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}
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}
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else if (rcvd == 0)
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{
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mod->sck_closed = 1;
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return 1;
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}
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else
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{
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data += rcvd;
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len -= rcvd;
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}
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}
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int DEFAULT_CC
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lib_send(struct mod *mod, char *data, int len)
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{
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int sent;
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if (mod->sck_closed)
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{
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return 1;
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}
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while (len > 0)
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{
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sent = g_tcp_send(mod->sck, data, len, 0);
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if (sent == -1)
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{
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if (g_tcp_last_error_would_block(mod->sck))
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{
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if (mod->server_is_term(mod))
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{
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return 1;
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}
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g_tcp_can_send(mod->sck, 10);
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}
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else
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{
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return 1;
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}
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}
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else if (sent == 0)
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{
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mod->sck_closed = 1;
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return 1;
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}
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else
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{
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data += sent;
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len -= sent;
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}
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}
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_start(struct mod *mod, int w, int h, int bpp)
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{
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LIB_DEBUG(mod, "in lib_mod_start");
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mod->width = w;
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mod->height = h;
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mod->bpp = bpp;
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LIB_DEBUG(mod, "out lib_mod_start");
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_connect(struct mod *mod)
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{
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int error;
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int len;
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int i;
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int index;
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int use_uds;
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struct stream *s;
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char con_port[256];
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LIB_DEBUG(mod, "in lib_mod_connect");
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/* clear screen */
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mod->server_begin_update(mod);
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mod->server_set_fgcolor(mod, 0);
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mod->server_fill_rect(mod, 0, 0, mod->width, mod->height);
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mod->server_end_update(mod);
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mod->server_msg(mod, "started connecting", 0);
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/* only support 8, 15, 16, and 24 bpp connections from rdp client */
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if (mod->bpp != 8 && mod->bpp != 15 && mod->bpp != 16 && mod->bpp != 24)
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{
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mod->server_msg(mod,
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"error - only supporting 8, 15, 16, and 24 bpp rdp connections", 0);
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LIB_DEBUG(mod, "out lib_mod_connect error");
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return 1;
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}
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if (g_strcmp(mod->ip, "") == 0)
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{
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mod->server_msg(mod, "error - no ip set", 0);
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LIB_DEBUG(mod, "out lib_mod_connect error");
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return 1;
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}
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make_stream(s);
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g_sprintf(con_port, "%s", mod->port);
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use_uds = 0;
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if (con_port[0] == '/')
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{
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use_uds = 1;
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}
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mod->sck_closed = 0;
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i = 0;
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while (1)
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{
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if (use_uds)
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{
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mod->sck = g_tcp_local_socket();
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}
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else
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{
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mod->sck = g_tcp_socket();
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g_tcp_set_non_blocking(mod->sck);
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g_tcp_set_no_delay(mod->sck);
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}
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mod->server_msg(mod, "connecting...", 0);
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if (use_uds)
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{
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error = g_tcp_local_connect(mod->sck, con_port);
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}
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else
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{
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error = g_tcp_connect(mod->sck, mod->ip, con_port);
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}
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if (error == -1)
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{
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if (g_tcp_last_error_would_block(mod->sck))
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{
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error = 0;
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index = 0;
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while (!g_tcp_can_send(mod->sck, 100))
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{
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index++;
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if ((index >= 30) || mod->server_is_term(mod))
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{
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mod->server_msg(mod, "connect timeout", 0);
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error = 1;
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break;
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}
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}
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}
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else
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{
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mod->server_msg(mod, "connect error", 0);
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}
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}
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if (error == 0)
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{
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break;
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}
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g_tcp_close(mod->sck);
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mod->sck = 0;
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i++;
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if (i >= 4)
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{
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mod->server_msg(mod, "connection problem, giving up", 0);
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break;
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}
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g_sleep(250);
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}
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if (error == 0)
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{
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/* send version message */
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, 301);
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out_uint32_le(s, 0);
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out_uint32_le(s, 0);
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out_uint32_le(s, 0);
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out_uint32_le(s, 1);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send(mod, s->data, len);
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}
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if (error == 0)
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{
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/* send screen size message */
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, 300);
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out_uint32_le(s, mod->width);
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out_uint32_le(s, mod->height);
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out_uint32_le(s, mod->bpp);
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out_uint32_le(s, 0);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send(mod, s->data, len);
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}
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if (error == 0)
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{
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/* send invalidate message */
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, 200);
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/* x and y */
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i = 0;
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out_uint32_le(s, i);
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/* width and height */
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i = ((mod->width & 0xffff) << 16) | mod->height;
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out_uint32_le(s, i);
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out_uint32_le(s, 0);
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out_uint32_le(s, 0);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send(mod, s->data, len);
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}
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free_stream(s);
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if (error != 0)
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{
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mod->server_msg(mod, "some problem", 0);
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LIB_DEBUG(mod, "out lib_mod_connect error");
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return 1;
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}
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else
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{
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mod->server_msg(mod, "connected ok", 0);
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mod->sck_obj = g_create_wait_obj_from_socket(mod->sck, 0);
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}
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LIB_DEBUG(mod, "out lib_mod_connect");
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_event(struct mod *mod, int msg, tbus param1, tbus param2,
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tbus param3, tbus param4)
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{
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struct stream *s;
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int len;
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int key;
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int rv;
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LIB_DEBUG(mod, "in lib_mod_event");
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make_stream(s);
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if ((msg >= 15) && (msg <= 16)) /* key events */
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{
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key = param2;
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if (key > 0)
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{
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if (key == 65027) /* altgr */
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{
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if (mod->shift_state)
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{
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g_writeln("special");
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/* fix for mstsc sending left control down with altgr */
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/* control down / up
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msg param1 param2 param3 param4
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15 0 65507 29 0
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16 0 65507 29 49152 */
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, 16); /* key up */
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out_uint32_le(s, 0);
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out_uint32_le(s, 65507); /* left control */
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out_uint32_le(s, 29); /* RDP scan code */
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out_uint32_le(s, 0xc000); /* flags */
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send(mod, s->data, len);
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}
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}
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if (key == 65507) /* left control */
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{
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mod->shift_state = msg == 15;
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}
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}
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}
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, msg);
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out_uint32_le(s, param1);
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out_uint32_le(s, param2);
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out_uint32_le(s, param3);
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out_uint32_le(s, param4);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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rv = lib_send(mod, s->data, len);
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free_stream(s);
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LIB_DEBUG(mod, "out lib_mod_event");
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return rv;
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}
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/******************************************************************************/
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/* return error */
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static int APP_CC
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process_server_window_new_update(struct mod *mod, struct stream *s)
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{
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int flags;
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int window_id;
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int title_bytes;
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int index;
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int bytes;
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int rv;
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struct rail_window_state_order rwso;
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g_memset(&rwso, 0, sizeof(rwso));
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in_uint32_le(s, window_id);
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in_uint32_le(s, rwso.owner_window_id);
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in_uint32_le(s, rwso.style);
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in_uint32_le(s, rwso.extended_style);
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in_uint32_le(s, rwso.show_state);
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in_uint16_le(s, title_bytes);
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if (title_bytes > 0)
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{
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rwso.title_info = g_malloc(title_bytes + 1, 0);
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in_uint8a(s, rwso.title_info, title_bytes);
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rwso.title_info[title_bytes] = 0;
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}
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in_uint32_le(s, rwso.client_offset_x);
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in_uint32_le(s, rwso.client_offset_y);
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in_uint32_le(s, rwso.client_area_width);
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in_uint32_le(s, rwso.client_area_height);
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in_uint32_le(s, rwso.rp_content);
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in_uint32_le(s, rwso.root_parent_handle);
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in_uint32_le(s, rwso.window_offset_x);
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in_uint32_le(s, rwso.window_offset_y);
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in_uint32_le(s, rwso.window_client_delta_x);
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in_uint32_le(s, rwso.window_client_delta_y);
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in_uint32_le(s, rwso.window_width);
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in_uint32_le(s, rwso.window_height);
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in_uint16_le(s, rwso.num_window_rects);
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if (rwso.num_window_rects > 0)
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{
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bytes = sizeof(struct rail_window_rect) * rwso.num_window_rects;
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rwso.window_rects = (struct rail_window_rect *)g_malloc(bytes, 0);
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for (index = 0; index < rwso.num_window_rects; index++)
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{
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in_uint16_le(s, rwso.window_rects[index].left);
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in_uint16_le(s, rwso.window_rects[index].top);
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in_uint16_le(s, rwso.window_rects[index].right);
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in_uint16_le(s, rwso.window_rects[index].bottom);
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}
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}
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in_uint32_le(s, rwso.visible_offset_x);
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in_uint32_le(s, rwso.visible_offset_y);
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in_uint16_le(s, rwso.num_visibility_rects);
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if (rwso.num_visibility_rects > 0)
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{
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bytes = sizeof(struct rail_window_rect) * rwso.num_visibility_rects;
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rwso.visibility_rects = (struct rail_window_rect *)g_malloc(bytes, 0);
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for (index = 0; index < rwso.num_visibility_rects; index++)
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{
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in_uint16_le(s, rwso.visibility_rects[index].left);
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in_uint16_le(s, rwso.visibility_rects[index].top);
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in_uint16_le(s, rwso.visibility_rects[index].right);
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in_uint16_le(s, rwso.visibility_rects[index].bottom);
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}
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}
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in_uint32_le(s, flags);
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mod->server_window_new_update(mod, window_id, &rwso, flags);
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rv = 0;
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g_free(rwso.title_info);
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g_free(rwso.window_rects);
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g_free(rwso.visibility_rects);
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return rv;
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}
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/******************************************************************************/
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/* return error */
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static int APP_CC
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process_server_window_delete(struct mod *mod, struct stream *s)
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{
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int window_id;
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int rv;
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in_uint32_le(s, window_id);
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mod->server_window_delete(mod, window_id);
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rv = 0;
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return rv;
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}
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/******************************************************************************/
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/* return error */
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static int
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lib_mod_process_orders(struct mod *mod, int type, struct stream *s)
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{
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int rv;
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int x;
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int y;
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int cx;
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int cy;
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int srcx;
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int srcy;
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int len_bmpdata;
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int style;
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int x1;
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int y1;
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int x2;
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int y2;
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int rdpid;
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int hints;
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int mask;
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int width;
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int height;
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int fgcolor;
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int opcode;
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char *bmpdata;
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char cur_data[32 * (32 * 3)];
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char cur_mask[32 * (32 / 8)];
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rv = 0;
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switch (type)
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{
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case 1: /* server_begin_update */
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rv = mod->server_begin_update(mod);
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break;
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case 2: /* server_end_update */
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rv = mod->server_end_update(mod);
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break;
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case 3: /* server_fill_rect */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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rv = mod->server_fill_rect(mod, x, y, cx, cy);
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break;
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case 4: /* server_screen_blt */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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in_sint16_le(s, srcx);
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in_sint16_le(s, srcy);
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rv = mod->server_screen_blt(mod, x, y, cx, cy, srcx, srcy);
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break;
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case 5: /* server_paint_rect */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
|
|
in_uint16_le(s, cx);
|
|
in_uint16_le(s, cy);
|
|
in_uint32_le(s, len_bmpdata);
|
|
in_uint8p(s, bmpdata, len_bmpdata);
|
|
in_uint16_le(s, width);
|
|
in_uint16_le(s, height);
|
|
in_sint16_le(s, srcx);
|
|
in_sint16_le(s, srcy);
|
|
rv = mod->server_paint_rect(mod, x, y, cx, cy,
|
|
bmpdata, width, height,
|
|
srcx, srcy);
|
|
break;
|
|
case 10: /* server_set_clip */
|
|
in_sint16_le(s, x);
|
|
in_sint16_le(s, y);
|
|
in_uint16_le(s, cx);
|
|
in_uint16_le(s, cy);
|
|
rv = mod->server_set_clip(mod, x, y, cx, cy);
|
|
break;
|
|
case 11: /* server_reset_clip */
|
|
rv = mod->server_reset_clip(mod);
|
|
break;
|
|
case 12: /* server_set_fgcolor */
|
|
in_uint32_le(s, fgcolor);
|
|
rv = mod->server_set_fgcolor(mod, fgcolor);
|
|
break;
|
|
case 14:
|
|
in_uint16_le(s, opcode);
|
|
rv = mod->server_set_opcode(mod, opcode);
|
|
break;
|
|
case 17:
|
|
in_uint16_le(s, style);
|
|
in_uint16_le(s, width);
|
|
rv = mod->server_set_pen(mod, style, width);
|
|
break;
|
|
case 18:
|
|
in_sint16_le(s, x1);
|
|
in_sint16_le(s, y1);
|
|
in_sint16_le(s, x2);
|
|
in_sint16_le(s, y2);
|
|
rv = mod->server_draw_line(mod, x1, y1, x2, y2);
|
|
break;
|
|
case 19:
|
|
in_sint16_le(s, x);
|
|
in_sint16_le(s, y);
|
|
in_uint8a(s, cur_data, 32 * (32 * 3));
|
|
in_uint8a(s, cur_mask, 32 * (32 / 8));
|
|
rv = mod->server_set_cursor(mod, x, y, cur_data, cur_mask);
|
|
break;
|
|
case 20:
|
|
in_uint32_le(s, rdpid);
|
|
in_uint16_le(s, width);
|
|
in_uint16_le(s, height);
|
|
rv = mod->server_create_os_surface(mod, rdpid, width, height);
|
|
break;
|
|
case 21:
|
|
in_uint32_le(s, rdpid);
|
|
rv = mod->server_switch_os_surface(mod, rdpid);
|
|
break;
|
|
case 22:
|
|
in_uint32_le(s, rdpid);
|
|
rv = mod->server_delete_os_surface(mod, rdpid);
|
|
break;
|
|
case 23: /* server_paint_rect_os */
|
|
in_sint16_le(s, x);
|
|
in_sint16_le(s, y);
|
|
in_uint16_le(s, cx);
|
|
in_uint16_le(s, cy);
|
|
in_uint32_le(s, rdpid);
|
|
in_sint16_le(s, srcx);
|
|
in_sint16_le(s, srcy);
|
|
rv = mod->server_paint_rect_os(mod, x, y, cx, cy,
|
|
rdpid, srcx, srcy);
|
|
break;
|
|
case 24: /* server_set_hints */
|
|
in_uint32_le(s, hints);
|
|
in_uint32_le(s, mask);
|
|
rv = mod->server_set_hints(mod, hints, mask);
|
|
break;
|
|
case 25: /* server_window_new_update */
|
|
rv = process_server_window_new_update(mod, s);
|
|
break;
|
|
case 26: /* server_window_delete */
|
|
rv = process_server_window_delete(mod, s);
|
|
break;
|
|
default:
|
|
g_writeln("lib_mod_process_orders: unknown order type %d", type);
|
|
rv = 0;
|
|
break;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
static int APP_CC
|
|
lib_send_client_info(struct mod *mod)
|
|
{
|
|
struct stream *s;
|
|
int len;
|
|
|
|
make_stream(s);
|
|
init_stream(s, 8192);
|
|
s_push_layer(s, iso_hdr, 4);
|
|
out_uint16_le(s, 104);
|
|
g_memcpy(s->p, &(mod->client_info), sizeof(mod->client_info));
|
|
s->p += sizeof(mod->client_info);
|
|
s_mark_end(s);
|
|
len = (int)(s->end - s->data);
|
|
s_pop_layer(s, iso_hdr);
|
|
out_uint32_le(s, len);
|
|
lib_send(mod, s->data, len);
|
|
free_stream(s);
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
int DEFAULT_CC
|
|
lib_mod_signal(struct mod *mod)
|
|
{
|
|
struct stream *s;
|
|
int num_orders;
|
|
int index;
|
|
int rv;
|
|
int len;
|
|
int type;
|
|
char *phold;
|
|
|
|
LIB_DEBUG(mod, "in lib_mod_signal");
|
|
make_stream(s);
|
|
init_stream(s, 8192);
|
|
rv = lib_recv(mod, s->data, 8);
|
|
|
|
if (rv == 0)
|
|
{
|
|
in_uint16_le(s, type);
|
|
in_uint16_le(s, num_orders);
|
|
in_uint32_le(s, len);
|
|
|
|
if (type == 1) /* original order list */
|
|
{
|
|
init_stream(s, len);
|
|
rv = lib_recv(mod, s->data, len);
|
|
|
|
if (rv == 0)
|
|
{
|
|
for (index = 0; index < num_orders; index++)
|
|
{
|
|
in_uint16_le(s, type);
|
|
rv = lib_mod_process_orders(mod, type, s);
|
|
|
|
if (rv != 0)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (type == 2) /* caps */
|
|
{
|
|
g_writeln("lib_mod_signal: type 2 len %d", len);
|
|
init_stream(s, len);
|
|
rv = lib_recv(mod, s->data, len);
|
|
|
|
if (rv == 0)
|
|
{
|
|
for (index = 0; index < num_orders; index++)
|
|
{
|
|
phold = s->p;
|
|
in_uint16_le(s, type);
|
|
in_uint16_le(s, len);
|
|
|
|
switch (type)
|
|
{
|
|
default:
|
|
g_writeln("lib_mod_signal: unknown cap type %d len %d",
|
|
type, len);
|
|
break;
|
|
}
|
|
|
|
s->p = phold + len;
|
|
}
|
|
|
|
lib_send_client_info(mod);
|
|
}
|
|
}
|
|
else if (type == 3) /* order list with len after type */
|
|
{
|
|
init_stream(s, len);
|
|
rv = lib_recv(mod, s->data, len);
|
|
|
|
if (rv == 0)
|
|
{
|
|
for (index = 0; index < num_orders; index++)
|
|
{
|
|
phold = s->p;
|
|
in_uint16_le(s, type);
|
|
in_uint16_le(s, len);
|
|
rv = lib_mod_process_orders(mod, type, s);
|
|
|
|
if (rv != 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
s->p = phold + len;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
g_writeln("unknown type %d", type);
|
|
}
|
|
}
|
|
|
|
free_stream(s);
|
|
LIB_DEBUG(mod, "out lib_mod_signal");
|
|
return rv;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
int DEFAULT_CC
|
|
lib_mod_end(struct mod *mod)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
int DEFAULT_CC
|
|
lib_mod_set_param(struct mod *mod, char *name, char *value)
|
|
{
|
|
if (g_strcasecmp(name, "username") == 0)
|
|
{
|
|
g_strncpy(mod->username, value, 255);
|
|
}
|
|
else if (g_strcasecmp(name, "password") == 0)
|
|
{
|
|
g_strncpy(mod->password, value, 255);
|
|
}
|
|
else if (g_strcasecmp(name, "ip") == 0)
|
|
{
|
|
g_strncpy(mod->ip, value, 255);
|
|
}
|
|
else if (g_strcasecmp(name, "port") == 0)
|
|
{
|
|
g_strncpy(mod->port, value, 255);
|
|
}
|
|
else if (g_strcasecmp(name, "client_info") == 0)
|
|
{
|
|
g_memcpy(&(mod->client_info), value, sizeof(mod->client_info));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
int DEFAULT_CC
|
|
lib_mod_get_wait_objs(struct mod *mod, tbus *read_objs, int *rcount,
|
|
tbus *write_objs, int *wcount, int *timeout)
|
|
{
|
|
int i;
|
|
|
|
i = *rcount;
|
|
|
|
if (mod != 0)
|
|
{
|
|
if (mod->sck_obj != 0)
|
|
{
|
|
read_objs[i++] = mod->sck_obj;
|
|
}
|
|
}
|
|
|
|
*rcount = i;
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* return error */
|
|
int DEFAULT_CC
|
|
lib_mod_check_wait_objs(struct mod *mod)
|
|
{
|
|
int rv;
|
|
|
|
rv = 0;
|
|
|
|
if (mod != 0)
|
|
{
|
|
if (mod->sck_obj != 0)
|
|
{
|
|
if (g_is_wait_obj_set(mod->sck_obj))
|
|
{
|
|
rv = lib_mod_signal(mod);
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
struct mod *EXPORT_CC
|
|
mod_init(void)
|
|
{
|
|
struct mod *mod;
|
|
|
|
mod = (struct mod *)g_malloc(sizeof(struct mod), 1);
|
|
mod->size = sizeof(struct mod);
|
|
mod->version = CURRENT_MOD_VER;
|
|
mod->handle = (tbus)mod;
|
|
mod->mod_connect = lib_mod_connect;
|
|
mod->mod_start = lib_mod_start;
|
|
mod->mod_event = lib_mod_event;
|
|
mod->mod_signal = lib_mod_signal;
|
|
mod->mod_end = lib_mod_end;
|
|
mod->mod_set_param = lib_mod_set_param;
|
|
mod->mod_get_wait_objs = lib_mod_get_wait_objs;
|
|
mod->mod_check_wait_objs = lib_mod_check_wait_objs;
|
|
return mod;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
int EXPORT_CC
|
|
mod_exit(struct mod *mod)
|
|
{
|
|
if (mod == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
g_delete_wait_obj_from_socket(mod->sck_obj);
|
|
g_tcp_close(mod->sck);
|
|
g_free(mod);
|
|
return 0;
|
|
}
|