mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
139 lines
2.8 KiB
C
139 lines
2.8 KiB
C
/* user.c - set user id, group id and group access list
|
|
*
|
|
* Copyright 1999 by PM Lashley and The OpenLDAP Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted only
|
|
* as authorized by the OpenLDAP Public License. A copy of this
|
|
* license is available at http://www.OpenLDAP.org/license.html or
|
|
* in file LICENSE in the top-level directory of the distribution.
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/stdlib.h>
|
|
|
|
#ifdef HAVE_PWD_H
|
|
#include <pwd.h>
|
|
#endif
|
|
#ifdef HAVE_GRP_H
|
|
#include <grp.h>
|
|
#endif
|
|
|
|
#include <ac/ctype.h>
|
|
#include <ac/unistd.h>
|
|
|
|
#include "slap.h"
|
|
|
|
|
|
/*
|
|
* Set real and effective user id and group id, and group access list
|
|
*/
|
|
|
|
void
|
|
slap_init_user( char *user, char *group )
|
|
{
|
|
uid_t uid = (uid_t) 0;
|
|
gid_t gid = (gid_t) 0;
|
|
|
|
if ( user ) {
|
|
struct passwd *pwd;
|
|
if ( isdigit( (unsigned char) *user )) {
|
|
uid = atoi( user );
|
|
#ifdef HAVE_GETPWUID
|
|
pwd = getpwuid( uid );
|
|
goto did_getpw;
|
|
#endif
|
|
} else {
|
|
pwd = getpwnam( user );
|
|
did_getpw:
|
|
if ( pwd == NULL ) {
|
|
Debug( LDAP_DEBUG_ANY, "No passwd entry for user %s\n",
|
|
user, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
if ( uid > 0 ) {
|
|
free( user );
|
|
user = (pwd != NULL ? ch_strdup( pwd->pw_name ) : NULL);
|
|
} else {
|
|
uid = pwd->pw_uid;
|
|
}
|
|
gid = pwd->pw_gid;
|
|
#ifdef HAVE_ENDPWENT
|
|
endpwent();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if ( group ) {
|
|
struct group *grp;
|
|
if ( isdigit( (unsigned char) *group )) {
|
|
gid = atoi( group );
|
|
#ifdef HAVE_GETGRGID
|
|
grp = getgrgid( gid );
|
|
goto did_group;
|
|
#endif
|
|
} else {
|
|
grp = getgrnam( group );
|
|
if ( grp != NULL )
|
|
gid = grp->gr_gid;
|
|
did_group:
|
|
if ( grp == NULL ) {
|
|
Debug( LDAP_DEBUG_ANY, "No group entry for group %s\n",
|
|
group, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
}
|
|
free( group );
|
|
}
|
|
|
|
if ( user ) {
|
|
if ( getuid() == 0 && initgroups( user, gid ) != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"Could not set the group access (gid) list\n", 0, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
free( user );
|
|
}
|
|
|
|
#ifdef HAVE_ENDGRENT
|
|
endgrent();
|
|
#endif
|
|
|
|
if ( gid > 0 ) {
|
|
if ( setgid( gid ) != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY, "Could not set real group id to %d\n",
|
|
gid, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
#ifdef HAVE_SETEGID
|
|
if ( setegid( gid ) != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY, "Could not set effective group id to %d\n",
|
|
gid, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if ( uid > 0 ) {
|
|
if ( setuid( uid ) != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY, "Could not set real user id to %d\n",
|
|
uid, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
#ifdef HAVE_SETEUID
|
|
if ( seteuid( uid ) != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY, "Could not set effective user id to %d\n",
|
|
uid, 0, 0 );
|
|
exit( 1 );
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#endif /* HAVE_PWD_H && HAVE_GRP_H */
|