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/*
* setsid.C -- A setsid replacement.
*/
/*
* $Id: setsid.C,v 3.0.1.1 1994/01/24 13:58:47 ram Exp ram $
*
* Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
*
* You may redistribute only under the terms of the Artistic Licence,
* as specified in the README file that comes with the distribution.
* You may reuse parts of this distribution only within the terms of
* that same Artistic Licence; a copy of which may be found at the root
* of the source tree for dist 4.0.
*
* $Log: setsid.C,v $
* Revision 3.0.1.1 1994/01/24 13:58:47 ram
* patch16: created
*
*/
#include "config.h"
#include "confmagic.h" /* Remove if not metaconfig -M */
#ifndef HAS_SETSID
/*
* setsid
*
* Set the process group ID and create a new session for the process.
*
* This is a pale imitation of the setsid() system call, since a session
* and a process group are two distinct things for the kernel. However,
* when setsid() is not available, the effects should be comparable.
*/
V_FUNC_VOID(int setsid)
{
int error = 0;
#ifdef HAS_SETPGID
/*
* setpgid() supersedes setpgrp() in OSF/1.
*/
error = setpgid(0 ,getpid());
#else
#ifdef HAS_SETPGRP
/*
* Good old way to get a process group leader.
*/
#ifdef USE_BSDPGRP
error = setpgrp(0 ,getpid()); /* bsd way */
#else
error = setpgrp(); /* usg way */
#endif
#endif
#endif
/*
* When none of the above is defined, do nothing.
*/
return error;
}
#endif
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