xrdp/sesman/tools/dis.c

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/**
* xrdp: A Remote Desktop Protocol server.
*
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* Copyright (C) Jay Sorg 2004-2013
*
* 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.
*/
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#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
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#include "xrdp_sockets.h"
#include "string_calls.h"
int main(int argc, char **argv)
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{
int sck;
int dis;
struct sockaddr_un sa;
size_t len;
char *display;
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if (argc != 1)
{
printf("xrdp disconnect utility\n");
printf("run with no parameters to disconnect you xrdp session\n");
return 0;
}
display = getenv("DISPLAY");
if (display == 0)
{
printf("display not set\n");
return 1;
}
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dis = g_get_display_num_from_display(display);
if (dis < 0)
{
printf("Can't parse DISPLAY='%s'\n", display);
return 1;
}
memset(&sa, 0, sizeof(sa));
sa.sun_family = AF_UNIX;
sprintf(sa.sun_path, XRDP_DISCONNECT_STR, dis);
if (access(sa.sun_path, F_OK) != 0)
{
printf("not in an xrdp session\n");
return 1;
}
if ((sck = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0)
{
printf("socket open error\n");
return 1;
}
len = sizeof(sa);
if (sendto(sck, "sig", 4, 0, (struct sockaddr *)&sa, len) > 0)
{
printf("message sent ok\n");
}
else
{
printf("message send failed: %s\n", strerror(errno));
}
return 0;
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}