| Eric Andersen | 27f64e1 | 2002-06-23 04:24:25 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com> |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. Neither the name of Julianne F. Haugh nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this software |
| 16 | * without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND |
| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE |
| 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 28 | * SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #include <stdio.h> |
| 32 | #include <errno.h> |
| 33 | #include <unistd.h> |
| 34 | #include <string.h> |
| 35 | #include <stdlib.h> |
| 36 | #include <syslog.h> |
| 37 | #include <ctype.h> |
| 38 | |
| 39 | #include "libbb.h" |
| 40 | |
| 41 | |
| 42 | /* Become the user and group(s) specified by PW. */ |
| 43 | void change_identity ( const struct passwd *pw ) |
| 44 | { |
| 45 | if ( initgroups ( pw-> pw_name, pw-> pw_gid ) == -1 ) |
| 46 | perror_msg_and_die ( "cannot set groups" ); |
| 47 | endgrent ( ); |
| 48 | |
| 49 | if ( setgid ( pw-> pw_gid )) |
| 50 | perror_msg_and_die ( "cannot set group id" ); |
| 51 | if ( setuid ( pw->pw_uid )) |
| 52 | perror_msg_and_die ( "cannot set user id" ); |
| 53 | } |
| 54 | |