mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com>
|
|
* 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 <stdio.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <syslog.h>
|
|
#include <ctype.h>
|
|
|
|
#include "libbb.h"
|
|
|
|
|
|
/* Become the user and group(s) specified by PW. */
|
|
const char *change_identity_e2str ( const struct passwd *pw )
|
|
{
|
|
if ( initgroups ( pw-> pw_name, pw-> pw_gid ) == -1 )
|
|
return "cannot set groups";
|
|
endgrent ( );
|
|
|
|
if ( setgid ( pw-> pw_gid ))
|
|
return "cannot set group id";
|
|
if ( setuid ( pw->pw_uid ))
|
|
return "cannot set user id";
|
|
return NULL;
|
|
}
|
|
|
|
void change_identity ( const struct passwd *pw )
|
|
{
|
|
const char *err_msg = change_identity_e2str(pw);
|
|
|
|
if(err_msg)
|
|
bb_perror_msg_and_die ( "%s", err_msg );
|
|
}
|