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/*
* Copyright (c) 1990 - 1994, Julianne Frances Haugh
* Copyright (c) 1997 , Marek Michałkiewicz
* Copyright (c) 2003 - 2005, Tomasz Kłoczko
* Copyright (c) 2008 , Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ident "$Id: pwd_init.c 1980 2008-04-27 00:40:09Z nekral-guest $"
#include "defines.h"
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include "prototypes.h"
/*
* pwd_init - ignore signals, and set resource limits to safe
* values. Call this before modifying password files, so that
* it is less likely to fail in the middle of operation.
*/
void pwd_init (void)
{
#ifdef HAVE_SYS_RESOURCE_H
struct rlimit rlim;
#ifdef RLIMIT_CORE
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit (RLIMIT_CORE, &rlim);
#endif
rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY;
#ifdef RLIMIT_AS
setrlimit (RLIMIT_AS, &rlim);
#endif
#ifdef RLIMIT_CPU
setrlimit (RLIMIT_CPU, &rlim);
#endif
#ifdef RLIMIT_DATA
setrlimit (RLIMIT_DATA, &rlim);
#endif
#ifdef RLIMIT_FSIZE
setrlimit (RLIMIT_FSIZE, &rlim);
#endif
#ifdef RLIMIT_NOFILE
setrlimit (RLIMIT_NOFILE, &rlim);
#endif
#ifdef RLIMIT_RSS
setrlimit (RLIMIT_RSS, &rlim);
#endif
#ifdef RLIMIT_STACK
setrlimit (RLIMIT_STACK, &rlim);
#endif
#else /* !HAVE_SYS_RESOURCE_H */
set_filesize_limit (30000);
/* don't know how to set the other limits... */
#endif /* !HAVE_SYS_RESOURCE_H */
signal (SIGALRM, SIG_IGN);
signal (SIGHUP, SIG_IGN);
signal (SIGINT, SIG_IGN);
signal (SIGPIPE, SIG_IGN);
signal (SIGQUIT, SIG_IGN);
signal (SIGTERM, SIG_IGN);
#ifdef SIGTSTP
signal (SIGTSTP, SIG_IGN);
#endif
#ifdef SIGTTOU
signal (SIGTTOU, SIG_IGN);
#endif
umask (077);
}
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