538600ef48
src/groupmod.c, src/grpck.c, src/login.c, src/logoutd.c, src/newgrp.c, src/newusers.c, src/passwd.c, src/pwck.c, src/suauth.c, src/useradd.c, src/userdel.c, src/usermod.c, src/vipw.c: Complete the switch from the `' quotation style to ''. Do it also in SYSLOG messages. Quote some parameters. All this permits to merge some messages.
876 lines
22 KiB
C
876 lines
22 KiB
C
/*
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* Copyright (c) 1991 - 1994, Julianne Frances Haugh
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* Copyright (c) 1996 - 2000, Marek Michałkiewicz
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* Copyright (c) 2000 - 2006, Tomasz Kłoczko
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* Copyright (c) 2007 - 2008, Nicolas François
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#ident "$Id$"
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/stat.h>
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#ifdef USE_PAM
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#include "pam_defs.h"
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#endif /* USE_PAM */
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#include "defines.h"
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#include "getdef.h"
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#include "groupio.h"
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#include "nscd.h"
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#include "prototypes.h"
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#include "pwauth.h"
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#include "pwio.h"
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#include "shadowio.h"
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#include "exitcodes.h"
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#ifdef SHADOWGRP
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#include "sgroupio.h"
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#endif
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/*
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* exit status values
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*/
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#define E_SUCCESS 0
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#define E_PW_UPDATE 1 /* can't update password file */
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#define E_USAGE 2 /* invalid command syntax */
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#define E_NOTFOUND 6 /* specified user doesn't exist */
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#define E_USER_BUSY 8 /* user currently logged in */
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#define E_GRP_UPDATE 10 /* can't update group file */
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#define E_HOMEDIR 12 /* can't remove home directory */
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static char *user_name;
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static uid_t user_id;
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static char *user_home;
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static char *Prog;
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static bool fflg = false;
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static bool rflg = false;
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static bool is_shadow_pwd;
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#ifdef SHADOWGRP
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static bool is_shadow_grp;
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#endif
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/* local function prototypes */
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static void usage (void);
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static void update_groups (void);
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static void close_files (void);
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static void fail_exit (int);
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static void open_files (void);
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static void update_user (void);
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static void user_busy (const char *, uid_t);
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static void user_cancel (const char *);
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#ifdef EXTRA_CHECK_HOME_DIR
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static bool path_prefix (const char *, const char *);
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#endif
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static int is_owner (uid_t, const char *);
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static void remove_mailbox (void);
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/*
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* usage - display usage message and exit
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*/
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static void usage (void)
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{
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fputs (_("Usage: userdel [options] LOGIN\n"
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"\n"
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"Options:\n"
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" -f, --force force removal of files,\n"
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" even if not owned by user\n"
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" -h, --help display this help message and exit\n"
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" -r, --remove remove home directory and mail spool\n"
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"\n"), stderr);
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exit (E_USAGE);
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}
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/*
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* update_groups - delete user from secondary group set
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*
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* update_groups() takes the user name that was given and searches
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* the group files for membership in any group.
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*
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* we also check to see if they have any groups they own (the same
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* name is their user name) and delete them too (only if USERGROUPS_ENAB
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* is enabled).
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*/
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static void update_groups (void)
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{
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const struct group *grp;
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struct group *ngrp;
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struct passwd *pwd;
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#ifdef SHADOWGRP
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bool deleted_user_group = false;
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const struct sgrp *sgrp;
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struct sgrp *nsgrp;
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#endif /* SHADOWGRP */
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/*
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* Scan through the entire group file looking for the groups that
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* the user is a member of.
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*/
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for (gr_rewind (), grp = gr_next (); NULL != grp; grp = gr_next ()) {
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/*
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* See if the user specified this group as one of their
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* concurrent groups.
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*/
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if (!is_on_list (grp->gr_mem, user_name))
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continue;
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/*
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* Delete the username from the list of group members and
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* update the group entry to reflect the change.
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*/
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ngrp = __gr_dup (grp);
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if (NULL == ngrp) {
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fprintf (stderr,
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_("%s: Out of memory. Cannot update the group database.\n"),
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Prog);
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exit (13); /* XXX */
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}
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ngrp->gr_mem = del_list (ngrp->gr_mem, user_name);
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if (gr_update (ngrp) == 0) {
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fprintf (stderr,
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_("%s: error updating group entry\n"), Prog);
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exit (E_GRP_UPDATE);
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}
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/*
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* Update the DBM group file with the new entry as well.
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*/
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting user from group",
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user_name, (unsigned int) user_id, 0);
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#endif
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SYSLOG ((LOG_INFO, "delete '%s' from group '%s'\n",
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user_name, ngrp->gr_name));
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}
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/*
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* we've removed their name from all the groups above, so
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* now if they have a group with the same name as their
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* user name, with no members, we delete it.
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*/
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grp = xgetgrnam (user_name);
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if ( (NULL != grp)
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&& getdef_bool ("USERGROUPS_ENAB")
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&& (NULL == grp->gr_mem[0])) {
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pwd = NULL;
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if (!fflg) {
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/*
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* Scan the passwd file to check if this group is still
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* used as a primary group.
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*/
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setpwent ();
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while ((pwd = getpwent ()) != NULL) {
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if (strcmp (pwd->pw_name, user_name) == 0) {
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continue;
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}
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if (pwd->pw_gid == grp->gr_gid) {
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fprintf (stderr,
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_
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("%s: Cannot remove group %s which is a primary group for another user.\n"),
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Prog, grp->gr_name);
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break;
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}
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}
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endpwent ();
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}
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if (NULL == pwd) {
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/*
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* We can remove this group, it is not the primary
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* group of any remaining user.
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*/
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gr_remove (grp->gr_name);
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#ifdef SHADOWGRP
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deleted_user_group = true;
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#endif
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting group",
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user_name, (unsigned int) user_id, 0);
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#endif
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SYSLOG ((LOG_INFO,
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"removed group '%s' owned by '%s'\n",
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grp->gr_name, user_name));
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}
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}
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#ifdef SHADOWGRP
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if (!is_shadow_grp) {
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return;
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}
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/*
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* Scan through the entire shadow group file looking for the groups
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* that the user is a member of. Both the administrative list and
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* the ordinary membership list is checked.
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*/
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for (sgr_rewind (), sgrp = sgr_next ();
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NULL != sgrp;
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sgrp = sgr_next ()) {
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bool was_member, was_admin;
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/*
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* See if the user specified this group as one of their
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* concurrent groups.
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*/
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was_member = is_on_list (sgrp->sg_mem, user_name);
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was_admin = is_on_list (sgrp->sg_adm, user_name);
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if (!was_member && !was_admin) {
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continue;
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}
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nsgrp = __sgr_dup (sgrp);
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if (NULL == nsgrp) {
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fprintf (stderr,
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_("%s: Out of memory. Cannot update the shadow group database.\n"),
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Prog);
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exit (13); /* XXX */
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}
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if (was_member) {
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nsgrp->sg_mem = del_list (nsgrp->sg_mem, user_name);
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}
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if (was_admin) {
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nsgrp->sg_adm = del_list (nsgrp->sg_adm, user_name);
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}
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if (sgr_update (nsgrp) == 0) {
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fprintf (stderr,
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_("%s: error updating shadow group entry\n"), Prog);
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exit (E_GRP_UPDATE);
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}
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting user from shadow group",
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user_name, (unsigned int) user_id, 0);
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#endif
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SYSLOG ((LOG_INFO, "delete '%s' from shadow group '%s'\n",
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user_name, nsgrp->sg_name));
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}
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if (deleted_user_group)
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sgr_remove (user_name);
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#endif /* SHADOWGRP */
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}
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/*
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* close_files - close all of the files that were opened
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*
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* close_files() closes all of the files that were opened for this
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* new user. This causes any modified entries to be written out.
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*/
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static void close_files (void)
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{
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if (pw_close () == 0)
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fprintf (stderr, _("%s: cannot rewrite password file\n"), Prog);
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if (is_shadow_pwd && (spw_close () == 0))
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fprintf (stderr,
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_("%s: cannot rewrite shadow password file\n"), Prog);
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if (gr_close () == 0)
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fprintf (stderr, _("%s: cannot rewrite group file\n"), Prog);
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gr_unlock ();
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#ifdef SHADOWGRP
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if (is_shadow_grp && (sgr_close () == 0))
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fprintf (stderr,
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_("%s: cannot rewrite shadow group file\n"), Prog);
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if (is_shadow_grp) {
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sgr_unlock ();
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}
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#endif
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if (is_shadow_pwd) {
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spw_unlock ();
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}
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pw_unlock ();
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}
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/*
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* fail_exit - exit with a failure code after unlocking the files
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*/
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static void fail_exit (int code)
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{
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pw_unlock ();
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gr_unlock ();
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if (is_shadow_pwd) {
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spw_unlock ();
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}
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#ifdef SHADOWGRP
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if (is_shadow_grp) {
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sgr_unlock ();
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}
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#endif
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting user",
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user_name, (unsigned int) user_id, 0);
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#endif
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exit (code);
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}
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/*
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* open_files - lock and open the password files
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*
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* open_files() opens the two password files.
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*/
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static void open_files (void)
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{
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if (pw_lock () == 0) {
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fprintf (stderr, _("%s: unable to lock password file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"locking password file",
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user_name, (unsigned int) user_id, 0);
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#endif
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exit (E_PW_UPDATE);
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}
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if (pw_open (O_RDWR) == 0) {
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fprintf (stderr, _("%s: unable to open password file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"opening password file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_PW_UPDATE);
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}
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if (is_shadow_pwd && (spw_lock () == 0)) {
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fprintf (stderr,
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_("%s: cannot lock shadow password file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"locking shadow password file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_PW_UPDATE);
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}
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if (is_shadow_pwd && (spw_open (O_RDWR) == 0)) {
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fprintf (stderr,
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_("%s: cannot open shadow password file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"opening shadow password file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_PW_UPDATE);
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}
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if (gr_lock () == 0) {
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fprintf (stderr, _("%s: unable to lock group file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"locking group file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_GRP_UPDATE);
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}
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if (gr_open (O_RDWR) == 0) {
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fprintf (stderr, _("%s: cannot open group file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"opening group file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_GRP_UPDATE);
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}
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#ifdef SHADOWGRP
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if (is_shadow_grp && (sgr_lock () == 0)) {
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fprintf (stderr,
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_("%s: unable to lock shadow group file\n"), Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"locking shadow group file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_GRP_UPDATE);
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}
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if (is_shadow_grp && (sgr_open (O_RDWR) == 0)) {
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fprintf (stderr, _("%s: cannot open shadow group file\n"),
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Prog);
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"opening shadow group file",
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user_name, (unsigned int) user_id, 0);
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#endif
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fail_exit (E_GRP_UPDATE);
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}
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#endif
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}
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/*
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* update_user - delete the user entries
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*
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* update_user() deletes the password file entries for this user
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* and will update the group entries as required.
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*/
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static void update_user (void)
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{
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if (pw_remove (user_name) == 0) {
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fprintf (stderr,
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_("%s: error deleting password entry\n"), Prog);
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fail_exit (E_PW_UPDATE);
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}
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if (is_shadow_pwd && (spw_remove (user_name) == 0)) {
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fprintf (stderr,
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_("%s: error deleting shadow password entry\n"), Prog);
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fail_exit (E_PW_UPDATE);
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}
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting user entries",
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user_name, (unsigned int) user_id, 1);
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#endif
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SYSLOG ((LOG_INFO, "delete user '%s'\n", user_name));
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}
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/*
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* user_busy - see if user is logged in.
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*
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* XXX - should probably check if there are any processes owned
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* by this user. Also, I think this check should be in usermod
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* as well (at least when changing username or UID). --marekm
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*/
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static void user_busy (const char *name, uid_t uid)
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{
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/*
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* We see if the user is logged in by looking for the user name
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* in the utmp file.
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*/
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#if HAVE_UTMPX_H
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struct utmpx *utent;
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setutxent ();
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while ((utent = getutxent ()) != NULL) {
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#else
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struct utmp *utent;
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setutent ();
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while ((utent = getutent ()) != NULL) {
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#endif
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if (utent->ut_type != USER_PROCESS)
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continue;
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if (strncmp (utent->ut_user, name, sizeof utent->ut_user) != 0) {
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continue;
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}
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fprintf (stderr,
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_("%s: user %s is currently logged in\n"), Prog, name);
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if (!fflg) {
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#ifdef WITH_AUDIT
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audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
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"deleting user logged in",
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name, AUDIT_NO_ID, 0);
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#endif
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exit (E_USER_BUSY);
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}
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}
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}
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/*
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* user_cancel - cancel cron and at jobs
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*
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* user_cancel removes the crontab and any at jobs for a user
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*/
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/*
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* We used to have all this stuff hardcoded here, but now
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* we just run an external script - it may need to do other
|
|
* things as well (like removing print jobs) and we may not
|
|
* want to recompile userdel too often. Below is a sample
|
|
* script (should work at least on Debian 1.1). --marekm
|
|
==========
|
|
#! /bin/sh
|
|
|
|
# Check for the required argument.
|
|
if [ $# != 1 ]; then
|
|
echo Usage: $0 username
|
|
exit 1
|
|
fi
|
|
|
|
# Remove cron jobs.
|
|
crontab -r -u $1
|
|
|
|
# Remove at jobs. XXX - will remove any jobs owned by the same UID, even if
|
|
# it was shared by a different username. at really should store the username
|
|
# somewhere, and atrm should support an option to remove all jobs owned by
|
|
# the specified user - for now we have to do this ugly hack...
|
|
find /var/spool/cron/atjobs -name "[^.]*" -type f -user $1 -exec rm {} \;
|
|
|
|
# Remove print jobs.
|
|
lprm $1
|
|
|
|
# All done.
|
|
exit 0
|
|
==========
|
|
*/
|
|
static void user_cancel (const char *user)
|
|
{
|
|
char *cmd;
|
|
pid_t pid, wpid;
|
|
int status;
|
|
|
|
cmd = getdef_str ("USERDEL_CMD");
|
|
if (NULL == cmd) {
|
|
return;
|
|
}
|
|
pid = fork ();
|
|
if (pid == 0) {
|
|
execl (cmd, cmd, user, (char *) 0);
|
|
perror (cmd);
|
|
_exit (errno == ENOENT ? E_CMD_NOTFOUND : E_CMD_NOEXEC);
|
|
} else if ((pid_t)-1 == pid) {
|
|
perror ("fork");
|
|
return;
|
|
}
|
|
do {
|
|
wpid = wait (&status);
|
|
} while ((wpid != pid) && ((pid_t)-1 != wpid));
|
|
}
|
|
|
|
#ifdef EXTRA_CHECK_HOME_DIR
|
|
static bool path_prefix (const char *s1, const char *s2)
|
|
{
|
|
return ( (strncmp (s2, s1, strlen (s1)) == 0)
|
|
&& ( ('\0' == s2[strlen (s1)])
|
|
|| ('/' == s2[strlen (s1)])));
|
|
}
|
|
#endif
|
|
|
|
static int is_owner (uid_t uid, const char *path)
|
|
{
|
|
struct stat st;
|
|
|
|
if (stat (path, &st) != 0) {
|
|
return -1;
|
|
}
|
|
return (st.st_uid == uid);
|
|
}
|
|
|
|
static void remove_mailbox (void)
|
|
{
|
|
const char *maildir;
|
|
char mailfile[1024];
|
|
int i;
|
|
|
|
maildir = getdef_str ("MAIL_DIR");
|
|
#ifdef MAIL_SPOOL_DIR
|
|
if ((NULL == maildir) && (getdef_str ("MAIL_FILE") == NULL)) {
|
|
maildir = MAIL_SPOOL_DIR;
|
|
}
|
|
#endif
|
|
if (NULL == maildir) {
|
|
return;
|
|
}
|
|
snprintf (mailfile, sizeof mailfile, "%s/%s", maildir, user_name);
|
|
if (fflg) {
|
|
unlink (mailfile); /* always remove, ignore errors */
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting mail file",
|
|
user_name, (unsigned int) user_id, 1);
|
|
#endif
|
|
return;
|
|
}
|
|
i = is_owner (user_id, mailfile);
|
|
if (i == 0) {
|
|
fprintf (stderr,
|
|
_("%s: %s not owned by %s, not removing\n"),
|
|
Prog, mailfile, user_name);
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting mail file",
|
|
user_name, (unsigned int) user_id, 0);
|
|
#endif
|
|
return;
|
|
} else if (i == -1)
|
|
return; /* mailbox doesn't exist */
|
|
if (unlink (mailfile) != 0) {
|
|
fprintf (stderr, _("%s: warning: can't remove "), Prog);
|
|
perror (mailfile);
|
|
}
|
|
#ifdef WITH_AUDIT
|
|
else {
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting mail file",
|
|
user_name, (unsigned int) user_id, 1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* main - userdel command
|
|
*/
|
|
int main (int argc, char **argv)
|
|
{
|
|
int errors = 0;
|
|
|
|
#ifdef USE_PAM
|
|
pam_handle_t *pamh = NULL;
|
|
int retval;
|
|
#endif
|
|
|
|
#ifdef WITH_AUDIT
|
|
audit_help_open ();
|
|
#endif
|
|
|
|
/*
|
|
* Get my name so that I can use it to report errors.
|
|
*/
|
|
Prog = Basename (argv[0]);
|
|
(void) setlocale (LC_ALL, "");
|
|
(void) bindtextdomain (PACKAGE, LOCALEDIR);
|
|
(void) textdomain (PACKAGE);
|
|
|
|
{
|
|
/*
|
|
* Parse the command line options.
|
|
*/
|
|
int c;
|
|
static struct option long_options[] = {
|
|
{"force", no_argument, NULL, 'f'},
|
|
{"help", no_argument, NULL, 'h'},
|
|
{"remove", no_argument, NULL, 'r'},
|
|
{NULL, 0, NULL, '\0'}
|
|
};
|
|
while ((c = getopt_long (argc, argv, "fhr",
|
|
long_options, NULL)) != -1) {
|
|
switch (c) {
|
|
case 'f': /* force remove even if not owned by user */
|
|
fflg = true;
|
|
break;
|
|
case 'r': /* remove home dir and mailbox */
|
|
rflg = true;
|
|
break;
|
|
default:
|
|
usage ();
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((optind + 1) != argc) {
|
|
usage ();
|
|
}
|
|
|
|
OPENLOG ("userdel");
|
|
|
|
#ifdef USE_PAM
|
|
retval = PAM_SUCCESS;
|
|
|
|
{
|
|
struct passwd *pampw;
|
|
pampw = getpwuid (getuid ()); /* local, no need for xgetpwuid */
|
|
if (pampw == NULL) {
|
|
retval = PAM_USER_UNKNOWN;
|
|
}
|
|
|
|
if (retval == PAM_SUCCESS) {
|
|
retval = pam_start ("userdel", pampw->pw_name,
|
|
&conv, &pamh);
|
|
}
|
|
}
|
|
|
|
if (retval == PAM_SUCCESS) {
|
|
retval = pam_authenticate (pamh, 0);
|
|
if (retval != PAM_SUCCESS) {
|
|
(void) pam_end (pamh, retval);
|
|
}
|
|
}
|
|
|
|
if (retval == PAM_SUCCESS) {
|
|
retval = pam_acct_mgmt (pamh, 0);
|
|
if (retval != PAM_SUCCESS) {
|
|
(void) pam_end (pamh, retval);
|
|
}
|
|
}
|
|
|
|
if (retval != PAM_SUCCESS) {
|
|
fprintf (stderr, _("%s: PAM authentication failed\n"), Prog);
|
|
exit (E_PW_UPDATE);
|
|
}
|
|
#endif /* USE_PAM */
|
|
|
|
is_shadow_pwd = spw_file_present ();
|
|
#ifdef SHADOWGRP
|
|
is_shadow_grp = sgr_file_present ();
|
|
#endif
|
|
|
|
/*
|
|
* Start with a quick check to see if the user exists.
|
|
*/
|
|
user_name = argv[argc - 1];
|
|
{
|
|
struct passwd *pwd;
|
|
pwd = getpwnam (user_name); /* local, no need for xgetpwnam */
|
|
if (NULL == pwd) {
|
|
fprintf (stderr, _("%s: user '%s' does not exist\n"),
|
|
Prog, user_name);
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting user not found",
|
|
user_name, AUDIT_NO_ID, 0);
|
|
#endif
|
|
exit (E_NOTFOUND);
|
|
}
|
|
user_id = pwd->pw_uid;
|
|
user_home = xstrdup (pwd->pw_dir);
|
|
}
|
|
#ifdef USE_NIS
|
|
|
|
/*
|
|
* Now make sure it isn't an NIS user.
|
|
*/
|
|
if (__ispwNIS ()) {
|
|
char *nis_domain;
|
|
char *nis_master;
|
|
|
|
fprintf (stderr,
|
|
_("%s: user %s is a NIS user\n"), Prog, user_name);
|
|
if ( !yp_get_default_domain (&nis_domain)
|
|
&& !yp_master (nis_domain, "passwd.byname", &nis_master)) {
|
|
fprintf (stderr,
|
|
_("%s: %s is the NIS master\n"),
|
|
Prog, nis_master);
|
|
}
|
|
exit (E_NOTFOUND);
|
|
}
|
|
#endif
|
|
/*
|
|
* Check to make certain the user isn't logged in.
|
|
*/
|
|
user_busy (user_name, user_id);
|
|
|
|
/*
|
|
* Do the hard stuff - open the files, create the user entries,
|
|
* create the home directory, then close and update the files.
|
|
*/
|
|
open_files ();
|
|
update_user ();
|
|
update_groups ();
|
|
|
|
if (rflg) {
|
|
remove_mailbox ();
|
|
}
|
|
if (rflg && !fflg && (is_owner (user_id, user_home) == 0)) {
|
|
fprintf (stderr,
|
|
_("%s: %s not owned by %s, not removing\n"),
|
|
Prog, user_home, user_name);
|
|
rflg = 0;
|
|
errors++;
|
|
}
|
|
|
|
#ifdef EXTRA_CHECK_HOME_DIR
|
|
/* This may be slow, the above should be good enough. */
|
|
if (rflg && !fflg) {
|
|
struct passwd *pwd;
|
|
/*
|
|
* For safety, refuse to remove the home directory if it
|
|
* would result in removing some other user's home
|
|
* directory. Still not perfect so be careful, but should
|
|
* prevent accidents if someone has /home or / as home
|
|
* directory... --marekm
|
|
*/
|
|
setpwent ();
|
|
while ((pwd = getpwent ())) {
|
|
if (strcmp (pwd->pw_name, user_name) == 0) {
|
|
continue;
|
|
}
|
|
if (path_prefix (user_home, pwd->pw_dir)) {
|
|
fprintf (stderr,
|
|
_
|
|
("%s: not removing directory %s (would remove home of user %s)\n"),
|
|
Prog, user_home, pwd->pw_name);
|
|
rflg = false;
|
|
errors++;
|
|
break;
|
|
}
|
|
}
|
|
endpwent ();
|
|
}
|
|
#endif
|
|
|
|
if (rflg) {
|
|
if (remove_tree (user_home) != 0) {
|
|
fprintf (stderr,
|
|
_("%s: error removing directory %s\n"),
|
|
Prog, user_home);
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting home directory",
|
|
user_name, (unsigned int) user_id, 1);
|
|
#endif
|
|
errors++;
|
|
}
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting home directory",
|
|
user_name, (unsigned int) user_id, 1);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Cancel any crontabs or at jobs. Have to do this before we remove
|
|
* the entry from /etc/passwd.
|
|
*/
|
|
user_cancel (user_name);
|
|
close_files ();
|
|
|
|
nscd_flush_cache ("passwd");
|
|
nscd_flush_cache ("group");
|
|
|
|
#ifdef USE_PAM
|
|
if (retval == PAM_SUCCESS) {
|
|
(void) pam_end (pamh, PAM_SUCCESS);
|
|
}
|
|
#endif /* USE_PAM */
|
|
#ifdef WITH_AUDIT
|
|
if (0 != errors) {
|
|
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
|
|
"deleting home directory",
|
|
user_name, AUDIT_NO_ID, 0);
|
|
}
|
|
#endif
|
|
exit ((0 != errors) ? E_HOMEDIR : E_SUCCESS);
|
|
/* NOT REACHED */
|
|
}
|
|
|