890 lines
22 KiB
C
890 lines
22 KiB
C
/*
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* SPDX-FileCopyrightText: 1991 - 1994, Julianne Frances Haugh
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* SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
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* SPDX-FileCopyrightText: 2000 - 2006, Tomasz Kłoczko
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* SPDX-FileCopyrightText: 2007 - 2011, Nicolas François
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <config.h>
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#ident "$Id$"
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#include <ctype.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 <stdint.h>
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#include <stdio.h>
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#include <sys/types.h>
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#ifdef ACCT_TOOLS_SETUID
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#ifdef USE_PAM
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#include "pam_defs.h"
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#include <pwd.h>
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#endif /* USE_PAM */
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#endif /* ACCT_TOOLS_SETUID */
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#include "alloc.h"
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#include "chkname.h"
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#include "defines.h"
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#include "groupio.h"
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#include "pwio.h"
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#include "nscd.h"
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#include "sssd.h"
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#include "prototypes.h"
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#ifdef SHADOWGRP
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#include "sgroupio.h"
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#endif
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#include "shadowlog.h"
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#include "stpecpy.h"
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#include "stpeprintf.h"
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/*
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* exit status values
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*/
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/*@-exitarg@*/
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#define E_SUCCESS 0 /* success */
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#define E_USAGE 2 /* invalid command syntax */
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#define E_BAD_ARG 3 /* invalid argument to option */
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#define E_GID_IN_USE 4 /* gid already in use (and no -o) */
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#define E_NOTFOUND 6 /* specified group doesn't exist */
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#define E_NAME_IN_USE 9 /* group name already in use */
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#define E_GRP_UPDATE 10 /* can't update group file */
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#define E_CLEANUP_SERVICE 11 /* can't setup cleanup service */
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#define E_PAM_USERNAME 12 /* can't determine your username for use with pam */
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#define E_PAM_ERROR 13 /* pam returned an error, see Syslog facility id groupmod */
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/*
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* Global variables
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*/
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const char *Prog;
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#ifdef SHADOWGRP
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static bool is_shadow_grp;
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#endif /* SHADOWGRP */
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static char *group_name;
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static char *group_newname;
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static char *group_passwd;
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static gid_t group_id;
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static gid_t group_newid;
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static const char* prefix = "";
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static char *user_list;
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static struct cleanup_info_mod info_passwd;
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static struct cleanup_info_mod info_group;
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#ifdef SHADOWGRP
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static struct cleanup_info_mod info_gshadow;
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#endif
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static bool
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aflg = false, /* append -U members rather than replace them */
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oflg = false, /* permit non-unique group ID to be specified with -g */
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gflg = false, /* new ID value for the group */
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nflg = false, /* a new name has been specified for the group */
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pflg = false; /* new encrypted password */
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/* local function prototypes */
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static void usage (int status);
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static void new_grent (struct group *);
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#ifdef SHADOWGRP
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static void new_sgent (struct sgrp *);
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#endif
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static void grp_update (void);
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static void check_new_gid (void);
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static void check_new_name (void);
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static void process_flags (int, char **);
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static void lock_files (void);
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static void prepare_failure_reports (void);
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static void open_files (void);
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static void close_files (void);
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static void update_primary_groups (gid_t ogid, gid_t ngid);
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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 (int status)
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{
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FILE *usageout = (E_SUCCESS != status) ? stderr : stdout;
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(void) fprintf (usageout,
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_("Usage: %s [options] GROUP\n"
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"\n"
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"Options:\n"),
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Prog);
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(void) fputs (_(" -a, --append append the users mentioned by -U option to the group \n"
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" without removing existing user members\n"), usageout);
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(void) fputs (_(" -g, --gid GID change the group ID to GID\n"), usageout);
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(void) fputs (_(" -h, --help display this help message and exit\n"), usageout);
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(void) fputs (_(" -n, --new-name NEW_GROUP change the name to NEW_GROUP\n"), usageout);
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(void) fputs (_(" -o, --non-unique allow to use a duplicate (non-unique) GID\n"), usageout);
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(void) fputs (_(" -p, --password PASSWORD change the password to this (encrypted)\n"
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" PASSWORD\n"), usageout);
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(void) fputs (_(" -R, --root CHROOT_DIR directory to chroot into\n"), usageout);
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(void) fputs (_(" -P, --prefix PREFIX_DIR prefix directory where are located the /etc/* files\n"), usageout);
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(void) fputs (_(" -U, --users USERS list of user members of this group\n"), usageout);
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(void) fputs ("\n", usageout);
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exit (status);
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}
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/*
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* new_grent - updates the values in a group file entry
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*
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* new_grent() takes all of the values that have been entered and fills
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* in a (struct group) with them.
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*/
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static void new_grent (struct group *grent)
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{
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if (nflg) {
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grent->gr_name = xstrdup (group_newname);
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}
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if (gflg) {
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grent->gr_gid = group_newid;
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}
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if ( pflg
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#ifdef SHADOWGRP
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&& ( (!is_shadow_grp)
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|| (strcmp (grent->gr_passwd, SHADOW_PASSWD_STRING) != 0))
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#endif
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) {
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/* Update the password in group if there is no gshadow
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* file or if the password is currently in group
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* (gr_passwd != "x"). We do not force the usage of
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* shadow passwords if it was not the case before.
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*/
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grent->gr_passwd = group_passwd;
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}
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}
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#ifdef SHADOWGRP
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/*
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* new_sgent - updates the values in a shadow group file entry
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*
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* new_sgent() takes all of the values that have been entered and fills
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* in a (struct sgrp) with them.
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*/
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static void new_sgent (struct sgrp *sgent)
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{
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if (nflg) {
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sgent->sg_name = xstrdup (group_newname);
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}
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/* Always update the shadowed password if there is a shadow entry
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* (even if shadowed passwords might not be enabled for this group
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* (gr_passwd != "x")).
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* It seems better to update the password in both places in case a
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* shadow and a non shadow entry exist.
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* This might occur only if there were already both entries.
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*/
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if (pflg) {
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sgent->sg_passwd = group_passwd;
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}
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}
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#endif /* SHADOWGRP */
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/*
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* grp_update - update group file entries
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*
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* grp_update() updates the new records in the memory databases.
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*/
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static void grp_update (void)
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{
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struct group grp;
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const struct group *ogrp;
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#ifdef SHADOWGRP
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struct sgrp sgrp;
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const struct sgrp *osgrp = NULL;
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#endif /* SHADOWGRP */
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/*
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* Get the current settings for this group.
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*/
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ogrp = gr_locate (group_name);
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if (NULL == ogrp) {
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fprintf (stderr,
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_("%s: group '%s' does not exist in %s\n"),
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Prog, group_name, gr_dbname ());
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exit (E_GRP_UPDATE);
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}
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grp = *ogrp;
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new_grent (&grp);
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#ifdef SHADOWGRP
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if ( is_shadow_grp
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&& (pflg || nflg)) {
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osgrp = sgr_locate (group_name);
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if (NULL != osgrp) {
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sgrp = *osgrp;
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new_sgent (&sgrp);
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} else if ( pflg
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&& (strcmp (grp.gr_passwd, SHADOW_PASSWD_STRING) == 0)) {
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static char *empty = NULL;
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/* If there is a gshadow file with no entries for
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* the group, but the group file indicates a
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* shadowed password, we force the creation of a
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* gshadow entry when a new password is requested.
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*/
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memset (&sgrp, 0, sizeof sgrp);
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sgrp.sg_name = xstrdup (grp.gr_name);
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sgrp.sg_passwd = xstrdup (grp.gr_passwd);
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sgrp.sg_adm = ∅
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sgrp.sg_mem = dup_list (grp.gr_mem);
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new_sgent (&sgrp);
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osgrp = &sgrp; /* entry needs to be committed */
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}
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}
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#endif /* SHADOWGRP */
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if (gflg) {
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update_primary_groups (ogrp->gr_gid, group_newid);
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}
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if (user_list) {
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char *token;
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if (!aflg) {
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// requested to replace the existing groups
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if (NULL != grp.gr_mem[0])
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gr_free_members(&grp);
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grp.gr_mem = XMALLOC(char *);
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grp.gr_mem[0] = NULL;
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} else {
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// append to existing groups
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if (NULL != grp.gr_mem[0])
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grp.gr_mem = dup_list (grp.gr_mem);
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}
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token = strtok(user_list, ",");
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while (token) {
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if (prefix_getpwnam (token) == NULL) {
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fprintf (stderr, _("Invalid member username %s\n"), token);
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exit (E_GRP_UPDATE);
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}
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grp.gr_mem = add_list(grp.gr_mem, token);
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token = strtok(NULL, ",");
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}
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}
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/*
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* Write out the new group file entry.
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*/
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if (gr_update (&grp) == 0) {
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fprintf (stderr,
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_("%s: failed to prepare the new %s entry '%s'\n"),
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Prog, gr_dbname (), grp.gr_name);
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exit (E_GRP_UPDATE);
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}
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if (nflg && (gr_remove (group_name) == 0)) {
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fprintf (stderr,
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_("%s: cannot remove entry '%s' from %s\n"),
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Prog, grp.gr_name, gr_dbname ());
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exit (E_GRP_UPDATE);
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}
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#ifdef SHADOWGRP
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/*
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* Make sure there was a shadow entry to begin with.
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*/
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if (NULL != osgrp) {
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/*
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* Write out the new shadow group entries as well.
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*/
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if (sgr_update (&sgrp) == 0) {
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fprintf (stderr,
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_("%s: failed to prepare the new %s entry '%s'\n"),
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Prog, sgr_dbname (), sgrp.sg_name);
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exit (E_GRP_UPDATE);
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}
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if (nflg && (sgr_remove (group_name) == 0)) {
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fprintf (stderr,
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_("%s: cannot remove entry '%s' from %s\n"),
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Prog, group_name, sgr_dbname ());
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exit (E_GRP_UPDATE);
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}
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}
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#endif /* SHADOWGRP */
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}
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/*
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* check_new_gid - check the new GID value for uniqueness
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*
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* check_new_gid() insures that the new GID value is unique.
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*/
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static void check_new_gid (void)
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{
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/*
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* First, the easy stuff. If the ID can be duplicated, or if the ID
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* didn't really change, just return. If the ID didn't change, turn
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* off those flags. No sense doing needless work.
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*/
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if (group_id == group_newid) {
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gflg = 0;
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return;
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}
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if (oflg ||
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(getgrgid (group_newid) == NULL) /* local, no need for xgetgrgid */
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) {
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return;
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}
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/*
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* Tell the user what they did wrong.
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*/
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fprintf (stderr,
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_("%s: GID '%lu' already exists\n"),
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Prog, (unsigned long int) group_newid);
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exit (E_GID_IN_USE);
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}
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/*
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* check_new_name - check the new name for uniqueness
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*
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* check_new_name() insures that the new name does not exist already.
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* You can't have the same name twice, period.
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*/
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static void check_new_name (void)
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{
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/*
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* Make sure they are actually changing the name.
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*/
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if (strcmp (group_name, group_newname) == 0) {
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nflg = 0;
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return;
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}
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if (is_valid_group_name (group_newname)) {
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/*
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* If the entry is found, too bad.
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*/
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/* local, no need for xgetgrnam */
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if (prefix_getgrnam (group_newname) != NULL) {
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fprintf (stderr,
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_("%s: group '%s' already exists\n"),
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Prog, group_newname);
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exit (E_NAME_IN_USE);
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}
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return;
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}
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/*
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* All invalid group names land here.
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*/
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fprintf (stderr,
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_("%s: invalid group name '%s'\n"),
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Prog, group_newname);
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exit (E_BAD_ARG);
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}
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/*
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* process_flags - perform command line argument setting
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*
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* process_flags() interprets the command line arguments and sets the
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* values that the user will be created with accordingly. The values
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* are checked for sanity.
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*/
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static void process_flags (int argc, char **argv)
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{
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int c;
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static struct option long_options[] = {
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{"append", no_argument, NULL, 'a'},
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{"gid", required_argument, NULL, 'g'},
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{"help", no_argument, NULL, 'h'},
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{"new-name", required_argument, NULL, 'n'},
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{"non-unique", no_argument, NULL, 'o'},
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{"password", required_argument, NULL, 'p'},
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{"root", required_argument, NULL, 'R'},
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{"prefix", required_argument, NULL, 'P'},
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{"users", required_argument, NULL, 'U'},
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{NULL, 0, NULL, '\0'}
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};
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while ((c = getopt_long (argc, argv, "ag:hn:op:R:P:U:",
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long_options, NULL)) != -1) {
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switch (c) {
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case 'a':
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aflg = true;
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break;
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case 'g':
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gflg = true;
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if ( (get_gid (optarg, &group_newid) == 0)
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|| (group_newid == (gid_t)-1)) {
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fprintf (stderr,
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_("%s: invalid group ID '%s'\n"),
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Prog, optarg);
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exit (E_BAD_ARG);
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}
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break;
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case 'h':
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usage (E_SUCCESS);
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break;
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case 'n':
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nflg = true;
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group_newname = optarg;
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break;
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case 'o':
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oflg = true;
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break;
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case 'p':
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group_passwd = optarg;
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pflg = true;
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break;
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case 'R': /* no-op, handled in process_root_flag () */
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break;
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case 'P': /* no-op, handled in process_prefix_flag () */
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break;
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case 'U':
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user_list = optarg;
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break;
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default:
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usage (E_USAGE);
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}
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}
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if (oflg && !gflg) {
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usage (E_USAGE);
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}
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if (optind != (argc - 1)) {
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usage (E_USAGE);
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}
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group_name = argv[argc - 1];
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}
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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 new
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* group. 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 (gr_close () == 0) {
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fprintf (stderr,
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_("%s: failure while writing changes to %s\n"),
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Prog, gr_dbname ());
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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_ACCT, Prog,
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info_group.audit_msg,
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group_name, AUDIT_NO_ID,
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SHADOW_AUDIT_SUCCESS);
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#endif
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SYSLOG ((LOG_INFO,
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"group changed in %s (%s)",
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gr_dbname (), info_group.action));
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del_cleanup (cleanup_report_mod_group);
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|
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cleanup_unlock_group (NULL);
|
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del_cleanup (cleanup_unlock_group);
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|
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#ifdef SHADOWGRP
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if ( is_shadow_grp
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&& (pflg || nflg)) {
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if (sgr_close () == 0) {
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fprintf (stderr,
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_("%s: failure while writing changes to %s\n"),
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Prog, sgr_dbname ());
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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_ACCT, Prog,
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info_gshadow.audit_msg,
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group_name, AUDIT_NO_ID,
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SHADOW_AUDIT_SUCCESS);
|
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#endif
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SYSLOG ((LOG_INFO,
|
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"group changed in %s (%s)",
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sgr_dbname (), info_gshadow.action));
|
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del_cleanup (cleanup_report_mod_gshadow);
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|
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cleanup_unlock_gshadow (NULL);
|
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del_cleanup (cleanup_unlock_gshadow);
|
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}
|
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#endif /* SHADOWGRP */
|
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|
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if (gflg) {
|
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if (pw_close () == 0) {
|
|
fprintf (stderr,
|
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_("%s: failure while writing changes to %s\n"),
|
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Prog, pw_dbname ());
|
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exit (E_GRP_UPDATE);
|
|
}
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_ACCT, Prog,
|
|
info_passwd.audit_msg,
|
|
group_name, AUDIT_NO_ID,
|
|
SHADOW_AUDIT_SUCCESS);
|
|
#endif
|
|
SYSLOG ((LOG_INFO,
|
|
"group changed in %s (%s)",
|
|
pw_dbname (), info_passwd.action));
|
|
del_cleanup (cleanup_report_mod_passwd);
|
|
|
|
cleanup_unlock_passwd (NULL);
|
|
del_cleanup (cleanup_unlock_passwd);
|
|
}
|
|
|
|
#ifdef WITH_AUDIT
|
|
audit_logger (AUDIT_USER_ACCT, Prog,
|
|
"modifying group",
|
|
group_name, AUDIT_NO_ID,
|
|
SHADOW_AUDIT_SUCCESS);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* prepare_failure_reports - Prepare the cleanup_info structure for logging
|
|
* of success and failure to syslog or audit.
|
|
*/
|
|
static void prepare_failure_reports (void)
|
|
{
|
|
char *gr, *gr_end;
|
|
#ifdef SHADOWGRP
|
|
char *sgr, *sgr_end;
|
|
#endif
|
|
char *pw, *pw_end;
|
|
|
|
info_group.name = group_name;
|
|
#ifdef SHADOWGRP
|
|
info_gshadow.name = group_name;
|
|
#endif
|
|
info_passwd.name = group_name;
|
|
|
|
gr = XMALLOCARRAY(512, char);
|
|
info_group.audit_msg = gr;
|
|
gr_end = gr + 512;
|
|
#ifdef SHADOWGRP
|
|
sgr = XMALLOCARRAY(512, char);
|
|
info_gshadow.audit_msg = sgr;
|
|
sgr_end = sgr + 512;
|
|
#endif
|
|
pw = XMALLOCARRAY(512, char);
|
|
info_passwd.audit_msg = pw;
|
|
pw_end = pw + 512;
|
|
|
|
gr = stpeprintf(gr, gr_end, "changing %s; ", gr_dbname ());
|
|
#ifdef SHADOWGRP
|
|
sgr = stpeprintf(sgr, sgr_end, "changing %s; ", sgr_dbname ());
|
|
#endif
|
|
pw = stpeprintf(pw, pw_end, "changing %s; ", pw_dbname ());
|
|
|
|
info_group.action = gr;
|
|
#ifdef SHADOWGRP
|
|
info_gshadow.action = sgr;
|
|
#endif
|
|
info_passwd.action = pw;
|
|
|
|
gr = stpeprintf(gr, gr_end,
|
|
"group %s/%ju", group_name, (uintmax_t) group_id);
|
|
#ifdef SHADOWGRP
|
|
sgr = stpeprintf(sgr, sgr_end,
|
|
"group %s", group_name);
|
|
#endif
|
|
pw = stpeprintf(pw, pw_end,
|
|
"group %s/%ju", group_name, (uintmax_t) group_id);
|
|
|
|
if (nflg) {
|
|
gr = stpecpy(gr, gr_end, ", new name: ");
|
|
gr = stpecpy(gr, gr_end, group_newname);
|
|
#ifdef SHADOWGRP
|
|
sgr = stpecpy(sgr, sgr_end, ", new name: ");
|
|
sgr = stpecpy(sgr, sgr_end, group_newname);
|
|
#endif
|
|
pw = stpecpy(pw, pw_end, ", new name: ");
|
|
pw = stpecpy(pw, pw_end, group_newname);
|
|
}
|
|
if (pflg) {
|
|
gr = stpecpy(gr, gr_end, ", new password");
|
|
#ifdef SHADOWGRP
|
|
sgr = stpecpy(sgr, sgr_end, ", new password");
|
|
#endif
|
|
}
|
|
if (gflg) {
|
|
gr = stpecpy(gr, gr_end, ", new gid: ");
|
|
stpeprintf(gr, gr_end, "%ju", (uintmax_t) group_newid);
|
|
|
|
pw = stpecpy(pw, pw_end, ", new gid: ");
|
|
stpeprintf(pw, pw_end, "%ju", (uintmax_t) group_newid);
|
|
}
|
|
|
|
// FIXME: add a system cleanup
|
|
add_cleanup (cleanup_report_mod_group, &info_group);
|
|
#ifdef SHADOWGRP
|
|
if ( is_shadow_grp
|
|
&& (pflg || nflg)) {
|
|
add_cleanup (cleanup_report_mod_gshadow, &info_gshadow);
|
|
}
|
|
#endif
|
|
if (gflg) {
|
|
add_cleanup (cleanup_report_mod_passwd, &info_passwd);
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* lock_files - lock the accounts databases
|
|
*
|
|
* lock_files() locks the group, gshadow, and passwd databases.
|
|
*/
|
|
static void lock_files (void)
|
|
{
|
|
if (gr_lock () == 0) {
|
|
fprintf (stderr,
|
|
_("%s: cannot lock %s; try again later.\n"),
|
|
Prog, gr_dbname ());
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
add_cleanup (cleanup_unlock_group, NULL);
|
|
|
|
#ifdef SHADOWGRP
|
|
if ( is_shadow_grp
|
|
&& (pflg || nflg)) {
|
|
if (sgr_lock () == 0) {
|
|
fprintf (stderr,
|
|
_("%s: cannot lock %s; try again later.\n"),
|
|
Prog, sgr_dbname ());
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
add_cleanup (cleanup_unlock_gshadow, NULL);
|
|
}
|
|
#endif
|
|
|
|
if (gflg) {
|
|
if (pw_lock () == 0) {
|
|
fprintf (stderr,
|
|
_("%s: cannot lock %s; try again later.\n"),
|
|
Prog, pw_dbname ());
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
add_cleanup (cleanup_unlock_passwd, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* open_files - open the accounts databases
|
|
*
|
|
* open_files() opens the group, gshadow, and passwd databases.
|
|
*/
|
|
static void open_files (void)
|
|
{
|
|
if (gr_open (O_CREAT | O_RDWR) == 0) {
|
|
fprintf (stderr, _("%s: cannot open %s\n"), Prog, gr_dbname ());
|
|
SYSLOG ((LOG_WARN, "cannot open %s", gr_dbname ()));
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
|
|
#ifdef SHADOWGRP
|
|
if ( is_shadow_grp
|
|
&& (pflg || nflg)) {
|
|
if (sgr_open (O_CREAT | O_RDWR) == 0) {
|
|
fprintf (stderr,
|
|
_("%s: cannot open %s\n"),
|
|
Prog, sgr_dbname ());
|
|
SYSLOG ((LOG_WARN, "cannot open %s", sgr_dbname ()));
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
}
|
|
#endif /* SHADOWGRP */
|
|
|
|
if (gflg) {
|
|
if (pw_open (O_CREAT | O_RDWR) == 0) {
|
|
fprintf (stderr,
|
|
_("%s: cannot open %s\n"),
|
|
Prog, pw_dbname ());
|
|
SYSLOG ((LOG_WARN, "cannot open %s", gr_dbname ()));
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
}
|
|
}
|
|
|
|
void update_primary_groups (gid_t ogid, gid_t ngid)
|
|
{
|
|
struct passwd *pwd;
|
|
|
|
prefix_setpwent ();
|
|
while ((pwd = prefix_getpwent ()) != NULL) {
|
|
if (pwd->pw_gid == ogid) {
|
|
const struct passwd *lpwd;
|
|
struct passwd npwd;
|
|
lpwd = pw_locate (pwd->pw_name);
|
|
if (NULL == lpwd) {
|
|
fprintf (stderr,
|
|
_("%s: user '%s' does not exist in %s\n"),
|
|
Prog, pwd->pw_name, pw_dbname ());
|
|
exit (E_GRP_UPDATE);
|
|
} else {
|
|
npwd = *lpwd;
|
|
npwd.pw_gid = ngid;
|
|
if (pw_update (&npwd) == 0) {
|
|
fprintf (stderr,
|
|
_("%s: failed to prepare the new %s entry '%s'\n"),
|
|
Prog, pw_dbname (), npwd.pw_name);
|
|
exit (E_GRP_UPDATE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
prefix_endpwent ();
|
|
}
|
|
|
|
/*
|
|
* main - groupmod command
|
|
*
|
|
*/
|
|
int main (int argc, char **argv)
|
|
{
|
|
#ifdef ACCT_TOOLS_SETUID
|
|
#ifdef USE_PAM
|
|
pam_handle_t *pamh = NULL;
|
|
int retval;
|
|
#endif /* USE_PAM */
|
|
#endif /* ACCT_TOOLS_SETUID */
|
|
|
|
/*
|
|
* Get my name so that I can use it to report errors.
|
|
*/
|
|
Prog = Basename (argv[0]);
|
|
log_set_progname(Prog);
|
|
log_set_logfd(stderr);
|
|
|
|
(void) setlocale (LC_ALL, "");
|
|
(void) bindtextdomain (PACKAGE, LOCALEDIR);
|
|
(void) textdomain (PACKAGE);
|
|
|
|
process_root_flag ("-R", argc, argv);
|
|
prefix = process_prefix_flag ("-P", argc, argv);
|
|
|
|
OPENLOG ("groupmod");
|
|
#ifdef WITH_AUDIT
|
|
audit_help_open ();
|
|
#endif
|
|
|
|
if (atexit (do_cleanups) != 0) {
|
|
fprintf (stderr,
|
|
_("%s: Cannot setup cleanup service.\n"),
|
|
Prog);
|
|
exit (E_CLEANUP_SERVICE);
|
|
}
|
|
|
|
process_flags (argc, argv);
|
|
|
|
#ifdef ACCT_TOOLS_SETUID
|
|
#ifdef USE_PAM
|
|
{
|
|
struct passwd *pampw;
|
|
pampw = getpwuid (getuid ()); /* local, no need for xgetpwuid */
|
|
if (NULL == pampw) {
|
|
fprintf (stderr,
|
|
_("%s: Cannot determine your user name.\n"),
|
|
Prog);
|
|
exit (E_PAM_USERNAME);
|
|
}
|
|
|
|
retval = pam_start ("groupmod", pampw->pw_name, &conv, &pamh);
|
|
}
|
|
|
|
if (PAM_SUCCESS == retval) {
|
|
retval = pam_authenticate (pamh, 0);
|
|
}
|
|
|
|
if (PAM_SUCCESS == retval) {
|
|
retval = pam_acct_mgmt (pamh, 0);
|
|
}
|
|
|
|
if (PAM_SUCCESS != retval) {
|
|
fprintf (stderr, _("%s: PAM: %s\n"),
|
|
Prog, pam_strerror (pamh, retval));
|
|
SYSLOG((LOG_ERR, "%s", pam_strerror (pamh, retval)));
|
|
if (NULL != pamh) {
|
|
(void) pam_end (pamh, retval);
|
|
}
|
|
exit (E_PAM_ERROR);
|
|
}
|
|
(void) pam_end (pamh, retval);
|
|
#endif /* USE_PAM */
|
|
#endif /* ACCT_TOOLS_SETUID */
|
|
|
|
#ifdef SHADOWGRP
|
|
is_shadow_grp = sgr_file_present ();
|
|
#endif
|
|
{
|
|
struct group *grp;
|
|
/*
|
|
* Start with a quick check to see if the group exists.
|
|
*/
|
|
grp = prefix_getgrnam (group_name); /* local, no need for xgetgrnam */
|
|
if (NULL == grp) {
|
|
fprintf (stderr,
|
|
_("%s: group '%s' does not exist\n"),
|
|
Prog, group_name);
|
|
exit (E_NOTFOUND);
|
|
} else {
|
|
group_id = grp->gr_gid;
|
|
}
|
|
}
|
|
|
|
#ifdef USE_NIS
|
|
/*
|
|
* Now make sure it isn't an NIS group.
|
|
*/
|
|
if (__isgrNIS ()) {
|
|
char *nis_domain;
|
|
char *nis_master;
|
|
|
|
fprintf (stderr,
|
|
_("%s: group %s is a NIS group\n"),
|
|
Prog, group_name);
|
|
|
|
if (!yp_get_default_domain (&nis_domain) &&
|
|
!yp_master (nis_domain, "group.byname", &nis_master)) {
|
|
fprintf (stderr,
|
|
_("%s: %s is the NIS master\n"),
|
|
Prog, nis_master);
|
|
}
|
|
exit (E_NOTFOUND);
|
|
}
|
|
#endif
|
|
|
|
if (gflg) {
|
|
check_new_gid ();
|
|
}
|
|
|
|
if (nflg) {
|
|
check_new_name ();
|
|
}
|
|
|
|
lock_files ();
|
|
|
|
/*
|
|
* Now if the group is not changed, it's our fault.
|
|
* Make sure failures will be reported.
|
|
*/
|
|
prepare_failure_reports ();
|
|
|
|
/*
|
|
* Do the hard stuff - open the files, create the group entries,
|
|
* then close and update the files.
|
|
*/
|
|
open_files ();
|
|
|
|
grp_update ();
|
|
|
|
close_files ();
|
|
|
|
nscd_flush_cache ("group");
|
|
sssd_flush_cache (SSSD_DB_GROUP);
|
|
|
|
return E_SUCCESS;
|
|
}
|
|
|