lbbs/src/fork.c

/***************************************************************************
                          fork.c  -  description
                             -------------------
    begin                : Mon Oct 18 2004
    copyright            : (C) 2004 by Leaflet
    email                : leaflet@leafok.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "common.h"
#include "io.h"
#include <string.h>

int
fork_server ()
{
  int pid;

  if (pid = fork ())
  {
    SYS_child_process_count ++;
    log_std ("Child process (%d) start\n", pid);
    return 0;
  }
  else if (pid < 0)
    return -1;


  if (close (socket_server) == -1)
    {
      log_error ("Close server socket failed\n");
      return -2;
    }

  //Redirect Input
  close (0);
  if (dup2 (socket_client, 0) == -1)
    {
      log_error ("Redirect stdin to client socket failed\n");
      return -3;
    }

  //Redirect Output
  close (1);
  if (dup2 (socket_client, 1) == -1)
    {
      log_error ("Redirect stdout to client socket failed\n");
      return -4;
    }

  bbs_main ();

  if (close (socket_client) == -1)
    {
      log_error ("Close client socket failed\n");
    }

  //Close Input and Output for client
  close (0);
  close (1);

  log_std ("Process exit normally\n");

  log_end ();

  //Exit child process normally
  exit (0);

  return 0;
}
1	sysadm	1.1	/***************************************************************************
2	sysadm	1.3	fork.c - description
3	sysadm	1.1	-------------------
4	sysadm	1.2	begin : Mon Oct 18 2004
5	sysadm	1.3	copyright : (C) 2004 by Leaflet
6	sysadm	1.1	email : leaflet@leafok.com
7			***************************************************************************/
8
9			/***************************************************************************
10			* *
11			* This program is free software; you can redistribute it and/or modify *
12			* it under the terms of the GNU General Public License as published by *
13			* the Free Software Foundation; either version 2 of the License, or *
14			* (at your option) any later version. *
15			* *
16			***************************************************************************/
17
18	sysadm	1.2	#include "common.h"
19	sysadm	1.7	#include "io.h"
20			#include <string.h>
21	sysadm	1.3
22			int
23	sysadm	1.10	fork_server ()
24	sysadm	1.3	{
25			int pid;
26	sysadm	1.10
27	sysadm	1.3	if (pid = fork ())
28	sysadm	1.11	{
29			SYS_child_process_count ++;
30			log_std ("Child process (%d) start\n", pid);
31	sysadm	1.3	return 0;
32	sysadm	1.11	}
33	sysadm	1.3	else if (pid < 0)
34			return -1;
35
36	sysadm	1.9
37	sysadm	1.10	if (close (socket_server) == -1)
38	sysadm	1.3	{
39	sysadm	1.10	log_error ("Close server socket failed\n");
40	sysadm	1.6	return -2;
41	sysadm	1.3	}
42	sysadm	1.4
43	sysadm	1.8	//Redirect Input
44	sysadm	1.10	close (0);
45	sysadm	1.8	if (dup2 (socket_client, 0) == -1)
46			{
47	sysadm	1.10	log_error ("Redirect stdin to client socket failed\n");
48	sysadm	1.8	return -3;
49			}
50
51	sysadm	1.6	//Redirect Output
52	sysadm	1.10	close (1);
53	sysadm	1.6	if (dup2 (socket_client, 1) == -1)
54			{
55	sysadm	1.10	log_error ("Redirect stdout to client socket failed\n");
56	sysadm	1.8	return -4;
57	sysadm	1.6	}
58
59	sysadm	1.10	bbs_main ();
60
61			if (close (socket_client) == -1)
62	sysadm	1.3	{
63	sysadm	1.10	log_error ("Close client socket failed\n");
64	sysadm	1.3	}
65
66	sysadm	1.9	//Close Input and Output for client
67	sysadm	1.10	close (0);
68			close (1);
69	sysadm	1.9
70	sysadm	1.11	log_std ("Process exit normally\n");
71
72	sysadm	1.10	log_end ();
73	sysadm	1.3
74			//Exit child process normally
75	sysadm	1.10	exit (0);
76	sysadm	1.3
77			return 0;
78			}
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