shadow/libmisc/setup.c

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/*
* Copyright 1989 - 1994, Julianne Frances Haugh
* 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. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH 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 JULIE HAUGH 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>
#include "rcsid.h"
RCSID("$Id: setup.c,v 1.3 1997/12/07 23:27:09 marekm Exp $")
#include "prototypes.h"
#include "defines.h"
#include <pwd.h>
/*
* setup - initialize login environment
*
* setup() performs the following steps -
*
* set the process nice, ulimit, and umask from the password file entry
* set the group ID to the value from the password file entry
* set the supplementary group IDs
* set the user ID to the value from the password file entry
* change to the user's home directory
* set the HOME, SHELL, MAIL, PATH, and LOGNAME or USER environmental
* variables.
*/
void
setup(struct passwd *info)
{
/*
* Set resource limits.
*/
setup_limits(info);
/*
* Set the real group ID, do initgroups, and set the real user ID
* to the value in the password file.
*/
if (setup_uid_gid(info, 0))
exit(1);
/*
* Change to the home directory, and set up environment.
*/
setup_env(info);
}