FreeRDP/server/X11/xfreerdp.c
Norbert Federa 12245abfc8 pcap: fix several segfaults with NULL pcap file handle
- pcap_open did not return NULL if fopen failed
- libfreerdp-core, tfreerdp-serer and xfreerdp-server did not check the pcap_open result
- also fixed the sleep calculation in the xfreerdp-server
2011-10-20 14:25:25 +02:00

119 lines
2.5 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Client
* FreeRDP X11 Server
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <signal.h>
#include <sys/select.h>
#include <freerdp/utils/memory.h>
#include "xf_peer.h"
#include "xfreerdp.h"
char* xf_pcap_file = NULL;
boolean xf_pcap_dump_realtime = True;
void xf_server_main_loop(freerdp_listener* instance)
{
int i;
int fds;
int max_fds;
int rcount;
void* rfds[32];
fd_set rfds_set;
memset(rfds, 0, sizeof(rfds));
while (1)
{
rcount = 0;
if (instance->GetFileDescriptor(instance, rfds, &rcount) != True)
{
printf("Failed to get FreeRDP file descriptor\n");
break;
}
max_fds = 0;
FD_ZERO(&rfds_set);
for (i = 0; i < rcount; i++)
{
fds = (int)(long)(rfds[i]);
if (fds > max_fds)
max_fds = fds;
FD_SET(fds, &rfds_set);
}
if (max_fds == 0)
break;
if (select(max_fds + 1, &rfds_set, NULL, NULL, NULL) == -1)
{
/* these are not really errors */
if (!((errno == EAGAIN) ||
(errno == EWOULDBLOCK) ||
(errno == EINPROGRESS) ||
(errno == EINTR))) /* signal occurred */
{
printf("select failed\n");
break;
}
}
if (instance->CheckFileDescriptor(instance) != True)
{
printf("Failed to check FreeRDP file descriptor\n");
break;
}
}
instance->Close(instance);
}
int main(int argc, char* argv[])
{
freerdp_listener* instance;
/* ignore SIGPIPE, otherwise an SSL_write failure could crash the server */
signal(SIGPIPE, SIG_IGN);
instance = freerdp_listener_new();
instance->PeerAccepted = xf_peer_accepted;
if (argc > 1)
xf_pcap_file = argv[1];
if (argc > 2 && !strcmp(argv[2], "--fast"))
xf_pcap_dump_realtime = False;
/* Open the server socket and start listening. */
if (instance->Open(instance, NULL, 3389))
{
/* Entering the server main loop. In a real server the listener can be run in its own thread. */
xf_server_main_loop(instance);
}
freerdp_listener_free(instance);
return 0;
}