server/server/daemon.c

/*
 * static char *rcsid_daemon_c =
 *   "$Id$";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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.

    The author can be reached via e-mail to crossfire-devel@real-time.com
*/

/*
 * BecomeDaemon.c
 * shamelessly swiped from xdm source code.
 * Appropriate copyrights kept, and hereby follow
 * ERic mehlhaff, 3/11/92
 *
 * xdm - display manager daemon
 *
 * $XConsortium: daemon.c,v 1.5 89/01/20 10:43:49 jim Exp $
 *
 * Copyright 1988 Massachusetts Institute of Technology
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of M.I.T. not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  M.I.T. makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * Author:  Keith Packard, MIT X Consortium
 */


#include <global.h>
#ifndef __CEXTRACT__
#include <sproto.h>
#endif
#include <sys/ioctl.h>
#ifdef hpux
#include <sys/ptyio.h>
#endif

#include <errno.h>
#include <stdio.h>
#include <sys/file.h>

FILE *BecomeDaemon (char *filename)
{
  FILE *logfile;
  register int i;
  int forkresult;
 
  if((logfile=fopen(filename,"a"))==NULL){
    fprintf(stderr, "Couldn't create logfile %s: %s\n", filename, strerror_local(errno));
    exit(0);
  } 
  fputs("\n========================\n",logfile);    
  fputs("Begin New Server Session\n",logfile);    
  fputs("========================\n\n",logfile);    
  fflush(logfile);
    /*
     * fork so that the process goes into the background automatically. Also
     * has a nice side effect of having the child process get inherited by
     * init (pid 1).
     */

    if ( (forkresult = fork ()) ){      /* if parent */
          if(forkresult < 0 ){
                perror("Fork error!");
          }
          exit (0);                     /* then no more work to do */
      }

    /*
     * Close standard file descriptors and get rid of controlling tty
     */

    close (0); 
    close (1);
    close (2);

    /*
     * Set up the standard file descriptors.
     */
    (void) open ("/", O_RDONLY);        /* root inode already in core */
    (void) dup2 (0, 1);
    (void) dup2 (0, 2);

    setsid();
  return(logfile);
}
Revision:	1.3
Committed:	Sun Aug 13 17:16:04 2006 UTC (17 years, 9 months ago) by elmex
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.2:	+0 -0 lines
State:	*FILE REMOVED*
Log Message:	Made server compile with C++. Removed cfanim plugin and crossedit. C++ here we come.
#	User	Rev	Content
1	root	1.1	/*
2			* static char *rcsid_daemon_c =
3	root	1.2	* "$Id$";
4	root	1.1	*/
5
6			/*
7			CrossFire, A Multiplayer game for X-windows
8
9			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
10			Copyright (C) 1992 Frank Tore Johansen
11
12			This program is free software; you can redistribute it and/or modify
13			it under the terms of the GNU General Public License as published by
14			the Free Software Foundation; either version 2 of the License, or
15			(at your option) any later version.
16
17			This program is distributed in the hope that it will be useful,
18			but WITHOUT ANY WARRANTY; without even the implied warranty of
19			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20			GNU General Public License for more details.
21
22			You should have received a copy of the GNU General Public License
23			along with this program; if not, write to the Free Software
24			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
26			The author can be reached via e-mail to crossfire-devel@real-time.com
27			*/
28
29			/*
30			* BecomeDaemon.c
31			* shamelessly swiped from xdm source code.
32			* Appropriate copyrights kept, and hereby follow
33			* ERic mehlhaff, 3/11/92
34			*
35			* xdm - display manager daemon
36			*
37			* $XConsortium: daemon.c,v 1.5 89/01/20 10:43:49 jim Exp $
38			*
39			* Copyright 1988 Massachusetts Institute of Technology
40			*
41			* Permission to use, copy, modify, and distribute this software and its
42			* documentation for any purpose and without fee is hereby granted, provided
43			* that the above copyright notice appear in all copies and that both that
44			* copyright notice and this permission notice appear in supporting
45			* documentation, and that the name of M.I.T. not be used in advertising or
46			* publicity pertaining to distribution of the software without specific,
47			* written prior permission. M.I.T. makes no representations about the
48			* suitability of this software for any purpose. It is provided "as is"
49			* without express or implied warranty.
50			*
51			* Author: Keith Packard, MIT X Consortium
52			*/
53
54
55			#include <global.h>
56			#ifndef __CEXTRACT__
57			#include <sproto.h>
58			#endif
59			#include <sys/ioctl.h>
60			#ifdef hpux
61			#include <sys/ptyio.h>
62			#endif
63
64			#include <errno.h>
65			#include <stdio.h>
66			#include <sys/file.h>
67
68			FILE BecomeDaemon (char filename)
69			{
70			FILE *logfile;
71			register int i;
72			int forkresult;
73
74			if((logfile=fopen(filename,"a"))==NULL){
75			fprintf(stderr, "Couldn't create logfile %s: %s\n", filename, strerror_local(errno));
76			exit(0);
77			}
78			fputs("\n========================\n",logfile);
79			fputs("Begin New Server Session\n",logfile);
80			fputs("========================\n\n",logfile);
81			fflush(logfile);
82			/*
83			* fork so that the process goes into the background automatically. Also
84			* has a nice side effect of having the child process get inherited by
85			* init (pid 1).
86			*/
87
88			if ( (forkresult = fork ()) ){ /* if parent */
89			if(forkresult < 0 ){
90			perror("Fork error!");
91			}
92			exit (0); /* then no more work to do */
93			}
94
95			/*
96			* Close standard file descriptors and get rid of controlling tty
97			*/
98
99			close (0);
100			close (1);
101			close (2);
102
103			/*
104			* Set up the standard file descriptors.
105			*/
106			(void) open ("/", O_RDONLY); /* root inode already in core */
107			(void) dup2 (0, 1);
108			(void) dup2 (0, 2);
109
110			setsid();
111			return(logfile);
112			}