1512 lines
37 KiB
C
1512 lines
37 KiB
C
/* $NetBSD: user.c,v 1.10 1999/12/31 21:58:14 agc Exp $ */
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/*
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* Copyright (c) 1999 Alistair G. Crooks. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Alistair G. Crooks.
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* 4. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <err.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <util.h>
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#include "defs.h"
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#include "usermgmt.h"
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/* this struct describes a uid range */
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typedef struct range_t {
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int r_from; /* low uid */
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int r_to; /* high uid */
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} range_t;
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/* this struct encapsulates the user information */
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typedef struct user_t {
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int u_uid; /* uid of user */
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char *u_password; /* encrypted password */
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char *u_comment; /* comment field */
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int u_homeset; /* home dir has been set */
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char *u_home; /* home directory */
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char *u_primgrp; /* primary group */
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int u_groupc; /* # of secondary groups */
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char *u_groupv[NGROUPS_MAX]; /* secondary groups */
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char *u_shell; /* user's shell */
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char *u_basedir; /* base directory for home */
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char *u_expire; /* when password will expire */
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int u_inactive; /* inactive */
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int u_mkdir; /* make the home directory */
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int u_dupuid; /* duplicate uids are allowed */
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char *u_skeldir; /* directory for startup files */
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unsigned u_rsize; /* size of range array */
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unsigned u_rc; /* # of ranges */
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range_t *u_rv; /* the ranges */
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unsigned u_defrc; /* # of ranges in defaults */
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int u_preserve; /* preserve uids on deletion */
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} user_t;
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#define CONFFILE "/etc/usermgmt.conf"
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#ifndef DEF_GROUP
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#define DEF_GROUP "users"
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#endif
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#ifndef DEF_BASEDIR
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#define DEF_BASEDIR "/home"
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#endif
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#ifndef DEF_SKELDIR
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#define DEF_SKELDIR "/etc/skel"
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#endif
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#ifndef DEF_SHELL
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#define DEF_SHELL "/bin/csh"
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#endif
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#ifndef DEF_COMMENT
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#define DEF_COMMENT ""
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#endif
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#ifndef DEF_LOWUID
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#define DEF_LOWUID 1000
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#endif
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#ifndef DEF_HIGHUID
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#define DEF_HIGHUID 60000
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#endif
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#ifndef DEF_INACTIVE
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#define DEF_INACTIVE 0
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#endif
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#ifndef DEF_EXPIRE
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#define DEF_EXPIRE (char *) NULL
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#endif
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#ifndef MASTER
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#define MASTER "/etc/master.passwd"
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#endif
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#ifndef ETCGROUP
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#define ETCGROUP "/etc/group"
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#endif
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#ifndef WAITSECS
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#define WAITSECS 10
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#endif
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#ifndef NOBODY_UID
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#define NOBODY_UID 32767
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#endif
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/* some useful constants */
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enum {
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MaxShellNameLen = 256,
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MaxFileNameLen = MAXPATHLEN,
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MaxUserNameLen = 32,
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MaxFieldNameLen = 32,
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MaxCommandLen = 2048,
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MaxEntryLen = 2048,
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PasswordLength = 13,
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LowGid = DEF_LOWUID,
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HighGid = DEF_HIGHUID
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};
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/* Full paths of programs used here */
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#define CHOWN "/usr/sbin/chown"
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#define MKDIR "/bin/mkdir"
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#define MV "/bin/mv"
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#define NOLOGIN "/sbin/nologin"
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#define PAX "/bin/pax"
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#define RM "/bin/rm"
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#define UNSET_EXPIRY "Null (unset)"
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static int verbose;
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/* if *cpp is non-null, free it, then assign `n' chars of `s' to it */
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static void
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memsave(char **cpp, char *s, size_t n)
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{
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if (*cpp != (char *) NULL) {
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FREE(*cpp);
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}
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NEWARRAY(char, *cpp, n + 1, exit(1));
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(void) memcpy(*cpp, s, n);
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(*cpp)[n] = 0;
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}
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/* a replacement for system(3) */
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static int
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asystem(char *fmt, ...)
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{
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va_list vp;
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char buf[MaxCommandLen];
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int ret;
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va_start(vp, fmt);
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(void) vsnprintf(buf, sizeof(buf), fmt, vp);
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va_end(vp);
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if (verbose) {
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(void) printf("Command: %s\n", buf);
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}
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if ((ret = system(buf)) != 0) {
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warnx("[Warning] can't system `%s'", buf);
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}
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return ret;
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}
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#define NetBSD_1_4_K 104110000
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#if defined(__NetBSD_Version__) && (__NetBSD_Version__ < NetBSD_1_4_K)
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/* bounds checking strncpy */
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static int
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strlcpy(char *to, char *from, size_t tosize)
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{
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size_t n;
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int fromsize;
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fromsize = strlen(from);
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n = MIN(tosize - 1, fromsize);
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(void) memcpy(to, from, n);
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to[n] = 0;
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return fromsize;
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}
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#endif
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#ifdef EXTENSIONS
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/* return 1 if all of `s' is numeric */
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static int
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is_number(char *s)
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{
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for ( ; *s ; s++) {
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if (!isdigit(*s)) {
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return 0;
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}
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}
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return 1;
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}
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#endif
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/*
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* check that the effective uid is 0 - called from funcs which will
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* modify data and config files.
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*/
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static void
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checkeuid(void)
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{
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if (geteuid() != 0) {
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errx(EXIT_FAILURE, "Program must be run as root");
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}
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}
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/* copy any dot files into the user's home directory */
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static int
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copydotfiles(char *skeldir, int uid, int gid, char *dir)
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{
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struct dirent *dp;
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DIR *dirp;
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int n;
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if ((dirp = opendir(skeldir)) == (DIR *) NULL) {
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warn("can't open source . files dir `%s'", skeldir);
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return 0;
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}
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for (n = 0; (dp = readdir(dirp)) != (struct dirent *) NULL && n == 0 ; ) {
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if (strcmp(dp->d_name, ".") == 0 ||
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strcmp(dp->d_name, "..") == 0) {
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continue;
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}
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n = 1;
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}
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(void) closedir(dirp);
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if (n == 0) {
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warnx("No \"dot\" initialisation files found");
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} else {
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(void) asystem("cd %s; %s -rw -pe %s . %s",
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skeldir, PAX, (verbose) ? "-v" : "", dir);
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}
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(void) asystem("%s -R -h %d:%d %s", CHOWN, uid, gid, dir);
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return n;
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}
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/* create a group entry with gid `gid' */
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static int
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creategid(char *group, int gid, char *name)
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{
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struct stat st;
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FILE *from;
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FILE *to;
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char buf[MaxEntryLen];
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char f[MaxFileNameLen];
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int fd;
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int cc;
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if ((from = fopen(ETCGROUP, "r")) == (FILE *) NULL) {
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warn("can't create gid for %s: can't open %s", name, ETCGROUP);
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return 0;
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}
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if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
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warn("can't lock `%s'", ETCGROUP);
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}
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(void) fstat(fileno(from), &st);
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(void) snprintf(f, sizeof(f), "%s.XXXXXX", ETCGROUP);
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if ((fd = mkstemp(f)) < 0) {
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(void) fclose(from);
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warn("can't create gid: mkstemp failed");
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return 0;
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}
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if ((to = fdopen(fd, "w")) == (FILE *) NULL) {
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(void) fclose(from);
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(void) close(fd);
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(void) unlink(f);
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warn("can't create gid: fdopen `%s' failed", f);
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return 0;
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}
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while ((cc = fread(buf, sizeof(char), sizeof(buf), from)) > 0) {
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if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
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(void) fclose(from);
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(void) close(fd);
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(void) unlink(f);
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warn("can't create gid: short write to `%s'", f);
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return 0;
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}
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}
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(void) fprintf(to, "%s:*:%d:%s\n", group, gid, name);
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(void) fclose(from);
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(void) fclose(to);
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if (rename(f, ETCGROUP) < 0) {
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warn("can't create gid: can't rename `%s' to `%s'", f, ETCGROUP);
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return 0;
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}
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(void) chmod(ETCGROUP, st.st_mode & 07777);
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return 1;
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}
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/* modify the group entry with name `group' to be newent */
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static int
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modify_gid(char *group, char *newent)
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{
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struct stat st;
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FILE *from;
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FILE *to;
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char buf[MaxEntryLen];
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char f[MaxFileNameLen];
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char *colon;
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int groupc;
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int entc;
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int fd;
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int cc;
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if ((from = fopen(ETCGROUP, "r")) == (FILE *) NULL) {
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warn("can't create gid for %s: can't open %s", group, ETCGROUP);
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return 0;
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}
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if (flock(fileno(from), LOCK_EX | LOCK_NB) < 0) {
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warn("can't lock `%s'", ETCGROUP);
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}
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(void) fstat(fileno(from), &st);
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(void) snprintf(f, sizeof(f), "%s.XXXXXX", ETCGROUP);
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if ((fd = mkstemp(f)) < 0) {
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(void) fclose(from);
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warn("can't create gid: mkstemp failed");
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return 0;
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}
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if ((to = fdopen(fd, "w")) == (FILE *) NULL) {
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(void) fclose(from);
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(void) close(fd);
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(void) unlink(f);
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warn("can't create gid: fdopen `%s' failed", f);
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return 0;
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}
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groupc = strlen(group);
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while ((cc = fread(buf, sizeof(char), sizeof(buf), from)) > 0) {
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if ((colon = strchr(buf, ':')) == (char *) NULL) {
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warn("badly formed entry `%s'", buf);
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continue;
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}
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entc = (int)(colon - buf);
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if (entc == groupc && strncmp(group, buf, (unsigned) entc) == 0) {
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if (newent == (char *) NULL) {
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continue;
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} else {
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cc = strlen(newent);
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(void) strlcpy(buf, newent, sizeof(buf));
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}
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}
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if (fwrite(buf, sizeof(char), (unsigned) cc, to) != cc) {
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(void) fclose(from);
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(void) close(fd);
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(void) unlink(f);
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warn("can't create gid: short write to `%s'", f);
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return 0;
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}
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}
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(void) fclose(from);
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(void) fclose(to);
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if (rename(f, ETCGROUP) < 0) {
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warn("can't create gid: can't rename `%s' to `%s'", f, ETCGROUP);
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return 0;
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}
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(void) chmod(ETCGROUP, st.st_mode & 07777);
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return 1;
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}
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/* return 1 if `login' is a valid login name */
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static int
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valid_login(char *login)
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{
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char *cp;
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for (cp = login ; *cp ; cp++) {
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if (!isalnum(*cp) && *cp != '.' && *cp != '_' && *cp != '-') {
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return 0;
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}
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}
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return 1;
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}
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/* return 1 if `group' is a valid group name */
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static int
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valid_group(char *group)
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{
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char *cp;
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for (cp = group ; *cp ; cp++) {
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if (!isalnum(*cp)) {
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return 0;
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}
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}
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return 1;
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}
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/* find the next gid in the range lo .. hi */
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static int
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getnextgid(int *gidp, int lo, int hi)
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{
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for (*gidp = lo ; *gidp < hi ; *gidp += 1) {
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if (getgrgid((gid_t)*gidp) == (struct group *) NULL) {
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return 1;
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}
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}
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return 0;
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}
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#ifdef EXTENSIONS
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/* save a range of uids */
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static int
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save_range(user_t *up, char *cp)
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{
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int from;
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int to;
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int i;
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if (up->u_rsize == 0) {
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up->u_rsize = 32;
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NEWARRAY(range_t, up->u_rv, up->u_rsize, return(0));
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} else if (up->u_rc == up->u_rsize) {
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up->u_rsize *= 2;
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RENEW(range_t, up->u_rv, up->u_rsize, return(0));
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}
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if (up->u_rv && sscanf(cp, "%d..%d", &from, &to) == 2) {
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for (i = 0 ; i < up->u_rc ; i++) {
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if (up->u_rv[i].r_from == from && up->u_rv[i].r_to == to) {
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break;
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}
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}
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if (i == up->u_rc) {
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up->u_rv[up->u_rc].r_from = from;
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up->u_rv[up->u_rc].r_to = to;
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up->u_rc += 1;
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}
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} else {
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warnx("Bad range `%s'", cp);
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return 0;
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}
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return 1;
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}
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#endif
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/* set the defaults in the defaults file */
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static int
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setdefaults(user_t *up)
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{
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char template[MaxFileNameLen];
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FILE *fp;
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int ret;
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int fd;
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int i;
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(void) snprintf(template, sizeof(template), "%s.XXXXXX", CONFFILE);
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if ((fd = mkstemp(template)) < 0) {
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warnx("can't mkstemp `%s' for writing", CONFFILE);
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return 0;
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}
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if ((fp = fdopen(fd, "w")) == (FILE *) NULL) {
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warn("can't fdopen `%s' for writing", CONFFILE);
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return 0;
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}
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ret = 1;
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if (fprintf(fp, "group\t\t%s\n", up->u_primgrp) <= 0 ||
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fprintf(fp, "base_dir\t%s\n", up->u_basedir) <= 0 ||
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fprintf(fp, "skel_dir\t%s\n", up->u_skeldir) <= 0 ||
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fprintf(fp, "shell\t\t%s\n", up->u_shell) <= 0 ||
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fprintf(fp, "inactive\t%d\n", up->u_inactive) <= 0 ||
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fprintf(fp, "expire\t\t%s\n", (up->u_expire == (char *) NULL) ? UNSET_EXPIRY : up->u_expire) <= 0) {
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warn("can't write to `%s'", CONFFILE);
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ret = 0;
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}
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#ifdef EXTENSIONS
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for (i = (up->u_defrc != up->u_rc) ? up->u_defrc : 0 ; i < up->u_rc ; i++) {
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if (fprintf(fp, "range\t\t%d..%d\n", up->u_rv[i].r_from, up->u_rv[i].r_to) <= 0) {
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warn("can't write to `%s'", CONFFILE);
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ret = 0;
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}
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}
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#endif
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(void) fclose(fp);
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if (ret) {
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ret = ((rename(template, CONFFILE) == 0) && (chmod(CONFFILE, 0644) == 0));
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}
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return ret;
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}
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/* read the defaults file */
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static void
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read_defaults(user_t *up)
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{
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struct stat st;
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size_t lineno;
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size_t len;
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FILE *fp;
|
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char *cp;
|
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char *s;
|
|
|
|
memsave(&up->u_primgrp, DEF_GROUP, strlen(DEF_GROUP));
|
|
memsave(&up->u_basedir, DEF_BASEDIR, strlen(DEF_BASEDIR));
|
|
memsave(&up->u_skeldir, DEF_SKELDIR, strlen(DEF_SKELDIR));
|
|
memsave(&up->u_shell, DEF_SHELL, strlen(DEF_SHELL));
|
|
memsave(&up->u_comment, DEF_COMMENT, strlen(DEF_COMMENT));
|
|
up->u_rsize = 16;
|
|
NEWARRAY(range_t, up->u_rv, up->u_rsize, exit(1));
|
|
up->u_inactive = DEF_INACTIVE;
|
|
up->u_expire = DEF_EXPIRE;
|
|
if ((fp = fopen(CONFFILE, "r")) == (FILE *) NULL) {
|
|
if (stat(CONFFILE, &st) < 0 && !setdefaults(up)) {
|
|
warn("can't create `%s' defaults file", CONFFILE);
|
|
}
|
|
fp = fopen(CONFFILE, "r");
|
|
}
|
|
if (fp != (FILE *) NULL) {
|
|
while ((s = fparseln(fp, &len, &lineno, NULL, 0)) != (char *) NULL) {
|
|
if (strncmp(s, "group", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_primgrp, cp, strlen(cp));
|
|
} else if (strncmp(s, "base_dir", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_basedir, cp, strlen(cp));
|
|
} else if (strncmp(s, "skel_dir", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_skeldir, cp, strlen(cp));
|
|
} else if (strncmp(s, "shell", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
memsave(&up->u_shell, cp, strlen(cp));
|
|
} else if (strncmp(s, "inactive", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
up->u_inactive = atoi(cp);
|
|
#ifdef EXTENSIONS
|
|
} else if (strncmp(s, "range", 5) == 0) {
|
|
for (cp = s + 5 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
(void) save_range(up, cp);
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
} else if (strncmp(s, "preserve", 8) == 0) {
|
|
for (cp = s + 8 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
up->u_preserve = (strncmp(cp, "true", 4) == 0) ? 1 :
|
|
(strncmp(cp, "yes", 3) == 0) ? 1 :
|
|
atoi(cp);
|
|
#endif
|
|
} else if (strncmp(s, "expire", 6) == 0) {
|
|
for (cp = s + 6 ; *cp && isspace(*cp) ; cp++) {
|
|
}
|
|
if (strcmp(cp, UNSET_EXPIRY) == 0) {
|
|
if (up->u_expire) {
|
|
FREE(up->u_expire);
|
|
}
|
|
up->u_expire = (char *) NULL;
|
|
} else {
|
|
memsave(&up->u_expire, cp, strlen(cp));
|
|
}
|
|
}
|
|
(void) free(s);
|
|
}
|
|
(void) fclose(fp);
|
|
}
|
|
if (up->u_rc == 0) {
|
|
up->u_rv[up->u_rc].r_from = DEF_LOWUID;
|
|
up->u_rv[up->u_rc].r_to = DEF_HIGHUID;
|
|
up->u_rc += 1;
|
|
}
|
|
up->u_defrc = up->u_rc;
|
|
}
|
|
|
|
/* return the next valid unused uid */
|
|
static int
|
|
getnextuid(int sync_uid_gid, int *uid, int low_uid, int high_uid)
|
|
{
|
|
for (*uid = low_uid ; *uid <= high_uid ; (*uid)++) {
|
|
if (getpwuid((uid_t)(*uid)) == (struct passwd *) NULL && *uid != NOBODY_UID) {
|
|
if (sync_uid_gid) {
|
|
if (getgrgid((gid_t)(*uid)) == (struct group *) NULL) {
|
|
return 1;
|
|
}
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* add a user */
|
|
static int
|
|
adduser(char *login, user_t *up)
|
|
{
|
|
struct group *grp;
|
|
struct stat st;
|
|
struct tm tm;
|
|
time_t expire;
|
|
char password[PasswordLength + 1];
|
|
char home[MaxFileNameLen];
|
|
char buf[MaxFileNameLen];
|
|
int sync_uid_gid;
|
|
int masterfd;
|
|
int ptmpfd;
|
|
int gid;
|
|
int cc;
|
|
int i;
|
|
|
|
if (!valid_login(login)) {
|
|
errx(EXIT_FAILURE, "`%s' is not a valid login name", login);
|
|
}
|
|
if ((masterfd = open(MASTER, O_RDONLY)) < 0) {
|
|
err(EXIT_FAILURE, "can't open `%s'", MASTER);
|
|
}
|
|
if (flock(masterfd, LOCK_EX | LOCK_NB) < 0) {
|
|
err(EXIT_FAILURE, "can't lock `%s'", MASTER);
|
|
}
|
|
pw_init();
|
|
if ((ptmpfd = pw_lock(WAITSECS)) < 0) {
|
|
(void) close(masterfd);
|
|
err(EXIT_FAILURE, "can't obtain pw_lock");
|
|
}
|
|
while ((cc = read(masterfd, buf, sizeof(buf))) > 0) {
|
|
if (write(ptmpfd, buf, (size_t)(cc)) != cc) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "short write to /etc/ptmp (not %d chars)", cc);
|
|
}
|
|
}
|
|
/* if no uid was specified, get next one in [low_uid..high_uid] range */
|
|
sync_uid_gid = (strcmp(up->u_primgrp, "=uid") == 0);
|
|
if (up->u_uid == -1) {
|
|
for (i = 0 ; i < up->u_rc ; i++) {
|
|
if (getnextuid(sync_uid_gid, &up->u_uid, up->u_rv[i].r_from, up->u_rv[i].r_to)) {
|
|
break;
|
|
}
|
|
}
|
|
if (i == up->u_rc) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "can't get next uid for %d", up->u_uid);
|
|
}
|
|
}
|
|
/* check uid isn't already allocated */
|
|
if (!up->u_dupuid && getpwuid((uid_t)(up->u_uid)) != (struct passwd *) NULL) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "uid %d is already in use", up->u_uid);
|
|
}
|
|
/* if -g=uid was specified, check gid is unused */
|
|
if (sync_uid_gid) {
|
|
if (getgrgid((gid_t)(up->u_uid)) != (struct group *) NULL) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "gid %d is already in use", up->u_uid);
|
|
}
|
|
gid = up->u_uid;
|
|
} else if ((grp = getgrnam(up->u_primgrp)) != (struct group *) NULL) {
|
|
gid = grp->gr_gid;
|
|
} else if (is_number(up->u_primgrp) &&
|
|
(grp = getgrgid((gid_t)atoi(up->u_primgrp))) != (struct group *) NULL) {
|
|
gid = grp->gr_gid;
|
|
} else {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "group %s not found", up->u_primgrp);
|
|
}
|
|
/* check name isn't already in use */
|
|
if (!up->u_dupuid && getpwnam(login) != (struct passwd *) NULL) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "already a `%s' user", login);
|
|
}
|
|
/* if home directory hasn't been given, make it up */
|
|
if (!up->u_homeset) {
|
|
(void) snprintf(home, sizeof(home), "%s/%s", up->u_basedir, login);
|
|
}
|
|
expire = 0;
|
|
if (up->u_expire != (char *) NULL) {
|
|
(void) memset(&tm, 0, sizeof(tm));
|
|
if (strptime(up->u_expire, "%c", &tm) == (char *) NULL) {
|
|
warnx("invalid time format `%s'", optarg);
|
|
} else {
|
|
expire = mktime(&tm);
|
|
}
|
|
}
|
|
password[PasswordLength] = 0;
|
|
if (up->u_password != (char *) NULL &&
|
|
strlen(up->u_password) == PasswordLength) {
|
|
(void) memcpy(password, up->u_password, PasswordLength);
|
|
} else {
|
|
(void) memset(password, '*', PasswordLength);
|
|
if (up->u_password != (char *) NULL) {
|
|
warnx("Password `%s' is invalid: setting it to `%s'",
|
|
up->u_password, password);
|
|
}
|
|
}
|
|
cc = snprintf(buf, sizeof(buf), "%s:%s:%d:%d::%d:%ld:%s:%s:%s\n",
|
|
login,
|
|
password,
|
|
up->u_uid,
|
|
gid,
|
|
up->u_inactive,
|
|
(long) expire,
|
|
up->u_comment,
|
|
home,
|
|
up->u_shell);
|
|
if (write(ptmpfd, buf, (size_t) cc) != cc) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't add `%s'", buf);
|
|
}
|
|
if (up->u_mkdir) {
|
|
if (lstat(home, &st) < 0 && asystem("%s -p %s", MKDIR, home) != 0) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't mkdir `%s'", home);
|
|
}
|
|
(void) copydotfiles(up->u_skeldir, up->u_uid, gid, home);
|
|
}
|
|
if (strcmp(up->u_primgrp, "=uid") == 0 &&
|
|
getgrnam(login) == (struct group *) NULL &&
|
|
!creategid(login, gid, login)) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't create gid %d for login name %s", gid, login);
|
|
}
|
|
(void) close(ptmpfd);
|
|
if (pw_mkdb() < 0) {
|
|
err(EXIT_FAILURE, "pw_mkdb failed");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* modify a user */
|
|
static int
|
|
moduser(char *login, char *newlogin, user_t *up)
|
|
{
|
|
struct passwd *pwp;
|
|
struct group *grp;
|
|
struct tm tm;
|
|
time_t expire;
|
|
size_t loginc;
|
|
size_t colonc;
|
|
FILE *master;
|
|
char password[PasswordLength + 1];
|
|
char oldhome[MaxFileNameLen];
|
|
char home[MaxFileNameLen];
|
|
char buf[MaxFileNameLen];
|
|
char *colon;
|
|
int masterfd;
|
|
int ptmpfd;
|
|
int gid;
|
|
int cc;
|
|
|
|
if (!valid_login(newlogin)) {
|
|
errx(EXIT_FAILURE, "`%s' is not a valid login name", login);
|
|
}
|
|
if ((pwp = getpwnam(login)) == (struct passwd *) NULL) {
|
|
errx(EXIT_FAILURE, "No such user `%s'", login);
|
|
}
|
|
if ((masterfd = open(MASTER, O_RDONLY)) < 0) {
|
|
err(EXIT_FAILURE, "can't open `%s'", MASTER);
|
|
}
|
|
if (flock(masterfd, LOCK_EX | LOCK_NB) < 0) {
|
|
err(EXIT_FAILURE, "can't lock `%s'", MASTER);
|
|
}
|
|
pw_init();
|
|
if ((ptmpfd = pw_lock(WAITSECS)) < 0) {
|
|
(void) close(masterfd);
|
|
err(EXIT_FAILURE, "can't obtain pw_lock");
|
|
}
|
|
if ((master = fdopen(masterfd, "r")) == (FILE *) NULL) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't fdopen fd for %s", MASTER);
|
|
}
|
|
if (up != (user_t *) NULL) {
|
|
if (up->u_mkdir) {
|
|
(void) strcpy(oldhome, pwp->pw_dir);
|
|
}
|
|
if (up->u_uid == -1) {
|
|
up->u_uid = pwp->pw_uid;
|
|
}
|
|
/* if -g=uid was specified, check gid is unused */
|
|
if (strcmp(up->u_primgrp, "=uid") == 0) {
|
|
if (getgrgid((gid_t)(up->u_uid)) != (struct group *) NULL) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "gid %d is already in use", up->u_uid);
|
|
}
|
|
gid = up->u_uid;
|
|
} else if ((grp = getgrnam(up->u_primgrp)) != (struct group *) NULL) {
|
|
gid = grp->gr_gid;
|
|
} else if (is_number(up->u_primgrp) &&
|
|
(grp = getgrgid((gid_t)atoi(up->u_primgrp))) != (struct group *) NULL) {
|
|
gid = grp->gr_gid;
|
|
} else {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "group %s not found", up->u_primgrp);
|
|
}
|
|
/* if changing name, check new name isn't already in use */
|
|
if (strcmp(login, newlogin) != 0 && getpwnam(newlogin) != (struct passwd *) NULL) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
errx(EXIT_FAILURE, "already a `%s' user", newlogin);
|
|
}
|
|
/* if home directory hasn't been given, use the old one */
|
|
if (!up->u_homeset) {
|
|
(void) strcpy(home, pwp->pw_dir);
|
|
}
|
|
expire = 0;
|
|
if (up->u_expire != (char *) NULL) {
|
|
(void) memset(&tm, 0, sizeof(tm));
|
|
if (strptime(up->u_expire, "%c", &tm) == (char *) NULL) {
|
|
warnx("invalid time format `%s'", optarg);
|
|
} else {
|
|
expire = mktime(&tm);
|
|
}
|
|
}
|
|
password[PasswordLength] = 0;
|
|
if (up->u_password != (char *) NULL &&
|
|
strlen(up->u_password) == PasswordLength) {
|
|
(void) memcpy(password, up->u_password, PasswordLength);
|
|
} else {
|
|
(void) memcpy(password, pwp->pw_passwd, PasswordLength);
|
|
}
|
|
if (strcmp(up->u_comment, DEF_COMMENT) == 0) {
|
|
memsave(&up->u_comment, pwp->pw_gecos, strlen(pwp->pw_gecos));
|
|
}
|
|
if (strcmp(up->u_shell, DEF_SHELL) == 0 && strcmp(pwp->pw_shell, DEF_SHELL) != 0) {
|
|
memsave(&up->u_comment, pwp->pw_shell, strlen(pwp->pw_shell));
|
|
}
|
|
}
|
|
loginc = strlen(login);
|
|
while (fgets(buf, sizeof(buf), master) != (char *) NULL) {
|
|
cc = strlen(buf);
|
|
if ((colon = strchr(buf, ':')) == (char *) NULL) {
|
|
warnx("Malformed entry `%s'. Skipping", buf);
|
|
continue;
|
|
}
|
|
colonc = (size_t)(colon - buf);
|
|
if (strncmp(login, buf, loginc) == 0 && loginc == colonc) {
|
|
if (up != (user_t *) NULL) {
|
|
cc = snprintf(buf, sizeof(buf), "%s:%s:%d:%d::%d:%ld:%s:%s:%s\n",
|
|
newlogin,
|
|
password,
|
|
up->u_uid,
|
|
gid,
|
|
up->u_inactive,
|
|
(long) expire,
|
|
up->u_comment,
|
|
home,
|
|
up->u_shell);
|
|
if (write(ptmpfd, buf, (size_t) cc) != cc) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't add `%s'", buf);
|
|
}
|
|
}
|
|
} else if (write(ptmpfd, buf, (size_t)(cc)) != cc) {
|
|
(void) close(masterfd);
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "short write to /etc/ptmp (not %d chars)", cc);
|
|
}
|
|
}
|
|
if (up != (user_t *) NULL &&
|
|
up->u_mkdir &&
|
|
asystem("%s %s %s", MV, oldhome, home) != 0) {
|
|
(void) close(ptmpfd);
|
|
(void) pw_abort();
|
|
err(EXIT_FAILURE, "can't move `%s' to `%s'", oldhome, home);
|
|
}
|
|
(void) close(ptmpfd);
|
|
if (pw_mkdb() < 0) {
|
|
err(EXIT_FAILURE, "pw_mkdb failed");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
#ifdef EXTENSIONS
|
|
/* see if we can find out the user struct */
|
|
static struct passwd *
|
|
find_user_info(char *name)
|
|
{
|
|
struct passwd *pwp;
|
|
|
|
if ((pwp = getpwnam(name)) != (struct passwd *) NULL) {
|
|
return pwp;
|
|
}
|
|
if (is_number(name) && (pwp = getpwuid((uid_t)atoi(name))) != (struct passwd *) NULL) {
|
|
return pwp;
|
|
}
|
|
return (struct passwd *) NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EXTENSIONS
|
|
/* see if we can find out the group struct */
|
|
static struct group *
|
|
find_group_info(char *name)
|
|
{
|
|
struct group *grp;
|
|
|
|
if ((grp = getgrnam(name)) != (struct group *) NULL) {
|
|
return grp;
|
|
}
|
|
if (is_number(name) && (grp = getgrgid((gid_t)atoi(name))) != (struct group *) NULL) {
|
|
return grp;
|
|
}
|
|
return (struct group *) NULL;
|
|
}
|
|
#endif
|
|
|
|
/* print out usage message, and then exit */
|
|
void
|
|
usermgmt_usage(char *prog)
|
|
{
|
|
if (strcmp(prog, "useradd") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s -D [-b basedir] [-e expiry] [-f inactive] [-g group] [-r lowuid..highuid] [-s shell]\n", prog);
|
|
(void) fprintf(stderr, "Usage: %s [-G group] [-b basedir] [-c comment] [-d homedir] [-e expiry] [-f inactive]\n\t[-g group] [-k skeletondir] [-m] [-o] [-p password] [-r lowuid..highuid] [-s shell]\n\t[-u uid] [-v] user\n", prog);
|
|
} else if (strcmp(prog, "usermod") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-G group] [-c comment] [-d homedir] [-e expire] [-f inactive] [-g group] [-l newname] [-m] [-o] [-p password] [-s shell] [-u uid] [-v] user\n", prog);
|
|
} else if (strcmp(prog, "userdel") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s -D [-p preserve]\n", prog);
|
|
(void) fprintf(stderr, "Usage: %s [-p preserve] [-r] [-v] user\n", prog);
|
|
#ifdef EXTENSIONS
|
|
} else if (strcmp(prog, "userinfo") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-e] [-v] user\n", prog);
|
|
#endif
|
|
} else if (strcmp(prog, "groupadd") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-g gid] [-o] [-v] group\n", prog);
|
|
} else if (strcmp(prog, "groupdel") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-v] group\n", prog);
|
|
} else if (strcmp(prog, "groupmod") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-g gid] [-o] [-n newname] [-v] group\n", prog);
|
|
} else if (strcmp(prog, "user") == 0 || strcmp(prog, "group") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s ( add | del | mod ) ...\n", prog);
|
|
#ifdef EXTENSIONS
|
|
} else if (strcmp(prog, "groupinfo") == 0) {
|
|
(void) fprintf(stderr, "Usage: %s [-e] [-v] group\n", prog);
|
|
#endif
|
|
}
|
|
exit(EXIT_FAILURE);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
extern int optind;
|
|
extern char *optarg;
|
|
|
|
#ifdef EXTENSIONS
|
|
#define ADD_OPT_EXTENSIONS "p:r:v"
|
|
#else
|
|
#define ADD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
useradd(int argc, char **argv)
|
|
{
|
|
user_t u;
|
|
int defaultfield;
|
|
int bigD;
|
|
int c;
|
|
int i;
|
|
|
|
(void) memset(&u, 0, sizeof(u));
|
|
read_defaults(&u);
|
|
u.u_uid = -1;
|
|
defaultfield = bigD = 0;
|
|
while ((c = getopt(argc, argv, "DG:b:c:d:e:f:g:k:mou:s:" ADD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'D':
|
|
bigD = 1;
|
|
break;
|
|
case 'G':
|
|
memsave(&u.u_groupv[u.u_groupc++], optarg, strlen(optarg));
|
|
break;
|
|
case 'b':
|
|
defaultfield = 1;
|
|
memsave(&u.u_basedir, optarg, strlen(optarg));
|
|
break;
|
|
case 'c':
|
|
memsave(&u.u_comment, optarg, strlen(optarg));
|
|
break;
|
|
case 'd':
|
|
u.u_homeset = 1;
|
|
memsave(&u.u_home, optarg, strlen(optarg));
|
|
break;
|
|
case 'e':
|
|
defaultfield = 1;
|
|
memsave(&u.u_expire, optarg, strlen(optarg));
|
|
break;
|
|
case 'f':
|
|
defaultfield = 1;
|
|
u.u_inactive = atoi(optarg);
|
|
break;
|
|
case 'g':
|
|
defaultfield = 1;
|
|
memsave(&u.u_primgrp, optarg, strlen(optarg));
|
|
break;
|
|
case 'k':
|
|
memsave(&u.u_skeldir, optarg, strlen(optarg));
|
|
break;
|
|
case 'm':
|
|
u.u_mkdir = 1;
|
|
break;
|
|
case 'o':
|
|
u.u_dupuid = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
memsave(&u.u_password, optarg, strlen(optarg));
|
|
break;
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
case 'r':
|
|
defaultfield = 1;
|
|
(void) save_range(&u, optarg);
|
|
break;
|
|
#endif
|
|
case 's':
|
|
defaultfield = 1;
|
|
memsave(&u.u_shell, optarg, strlen(optarg));
|
|
break;
|
|
case 'u':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-u uid], the uid must be numeric");
|
|
}
|
|
u.u_uid = atoi(optarg);
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
if (bigD) {
|
|
if (defaultfield) {
|
|
checkeuid();
|
|
return setdefaults(&u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
(void) printf("group\t\t%s\n", u.u_primgrp);
|
|
(void) printf("base_dir\t%s\n", u.u_basedir);
|
|
(void) printf("skel_dir\t%s\n", u.u_skeldir);
|
|
(void) printf("shell\t\t%s\n", u.u_shell);
|
|
(void) printf("inactive\t%d\n", u.u_inactive);
|
|
(void) printf("expire\t\t%s\n", (u.u_expire == (char *) NULL) ? UNSET_EXPIRY : u.u_expire);
|
|
#ifdef EXTENSIONS
|
|
for (i = 0 ; i < u.u_rc ; i++) {
|
|
(void) printf("range\t\t%d..%d\n", u.u_rv[i].r_from, u.u_rv[i].r_to);
|
|
}
|
|
#endif
|
|
return EXIT_SUCCESS;
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("useradd");
|
|
}
|
|
checkeuid();
|
|
return adduser(argv[optind], &u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define MOD_OPT_EXTENSIONS "p:v"
|
|
#else
|
|
#define MOD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
usermod(int argc, char **argv)
|
|
{
|
|
user_t u;
|
|
char newuser[MaxUserNameLen + 1];
|
|
int have_new_user;
|
|
int c;
|
|
|
|
checkeuid();
|
|
(void) memset(&u, 0, sizeof(u));
|
|
(void) memset(newuser, 0, sizeof(newuser));
|
|
read_defaults(&u);
|
|
u.u_uid = -1;
|
|
have_new_user = 0;
|
|
while ((c = getopt(argc, argv, "G:c:d:e:f:g:l:mos:u:" MOD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'G':
|
|
memsave(&u.u_groupv[u.u_groupc++], optarg, strlen(optarg));
|
|
break;
|
|
case 'c':
|
|
memsave(&u.u_comment, optarg, strlen(optarg));
|
|
break;
|
|
case 'd':
|
|
u.u_homeset = 1;
|
|
memsave(&u.u_home, optarg, strlen(optarg));
|
|
break;
|
|
case 'e':
|
|
memsave(&u.u_expire, optarg, strlen(optarg));
|
|
break;
|
|
case 'f':
|
|
u.u_inactive = atoi(optarg);
|
|
break;
|
|
case 'g':
|
|
memsave(&u.u_primgrp, optarg, strlen(optarg));
|
|
break;
|
|
case 'l':
|
|
have_new_user = 1;
|
|
(void) strlcpy(newuser, optarg, sizeof(newuser));
|
|
break;
|
|
case 'm':
|
|
u.u_mkdir = 1;
|
|
break;
|
|
case 'o':
|
|
u.u_dupuid = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
memsave(&u.u_password, optarg, strlen(optarg));
|
|
break;
|
|
#endif
|
|
case 's':
|
|
memsave(&u.u_shell, optarg, strlen(optarg));
|
|
break;
|
|
case 'u':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-u uid], the uid must be numeric");
|
|
}
|
|
u.u_uid = atoi(optarg);
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("usermod");
|
|
}
|
|
return moduser(argv[optind], (have_new_user) ? newuser : argv[optind], &u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define DEL_OPT_EXTENSIONS "Dp:v"
|
|
#else
|
|
#define DEL_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
int
|
|
userdel(int argc, char **argv)
|
|
{
|
|
struct passwd *pwp;
|
|
struct stat st;
|
|
user_t u;
|
|
char password[PasswordLength + 1];
|
|
int defaultfield;
|
|
int rmhome;
|
|
int bigD;
|
|
int c;
|
|
|
|
if (geteuid() != 0) {
|
|
errx(EXIT_FAILURE, "Program must be run as root");
|
|
}
|
|
(void) memset(&u, 0, sizeof(u));
|
|
read_defaults(&u);
|
|
defaultfield = bigD = rmhome = 0;
|
|
while ((c = getopt(argc, argv, "r" DEL_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
#ifdef EXTENSIONS
|
|
case 'D':
|
|
bigD = 1;
|
|
break;
|
|
#endif
|
|
#ifdef EXTENSIONS
|
|
case 'p':
|
|
defaultfield = 1;
|
|
u.u_preserve = (strcmp(optarg, "true") == 0) ? 1 :
|
|
(strcmp(optarg, "yes") == 0) ? 1 :
|
|
atoi(optarg);
|
|
break;
|
|
#endif
|
|
case 'r':
|
|
rmhome = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
#ifdef EXTENSIONS
|
|
if (bigD) {
|
|
if (defaultfield) {
|
|
checkeuid();
|
|
return setdefaults(&u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
(void) printf("preserve\t%s\n", (u.u_preserve) ? "true" : "false");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|
|
if (argc == optind) {
|
|
usermgmt_usage("userdel");
|
|
}
|
|
checkeuid();
|
|
if ((pwp = getpwnam(argv[optind])) == (struct passwd *) NULL) {
|
|
warnx("No such user `%s'", argv[optind]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (rmhome) {
|
|
if (stat(pwp->pw_dir, &st) < 0) {
|
|
warn("Home directory `%s' does not exist", pwp->pw_dir);
|
|
return EXIT_FAILURE;
|
|
}
|
|
(void) asystem("%s -rf %s", RM, pwp->pw_dir);
|
|
}
|
|
if (u.u_preserve) {
|
|
memsave(&u.u_shell, NOLOGIN, strlen(NOLOGIN));
|
|
(void) memset(password, '*', PasswordLength);
|
|
password[PasswordLength] = 0;
|
|
memsave(&u.u_password, password, PasswordLength);
|
|
return moduser(argv[optind], argv[optind], &u) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
return moduser(argv[optind], argv[optind], (user_t *) NULL) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_ADD_OPT_EXTENSIONS "v"
|
|
#else
|
|
#define GROUP_ADD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* add a group */
|
|
int
|
|
groupadd(int argc, char **argv)
|
|
{
|
|
int dupgid;
|
|
int gid;
|
|
int c;
|
|
|
|
checkeuid();
|
|
gid = -1;
|
|
dupgid = 0;
|
|
while ((c = getopt(argc, argv, "g:o" GROUP_ADD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'g':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-g gid], the gid must be numeric");
|
|
}
|
|
gid = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
dupgid = 1;
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("groupadd");
|
|
}
|
|
if (gid < 0 && !getnextgid(&gid, LowGid, HighGid)) {
|
|
err(EXIT_FAILURE, "can't add group: can't get next gid");
|
|
}
|
|
if (!dupgid && getgrgid((gid_t) gid) != (struct group *) NULL) {
|
|
errx(EXIT_FAILURE, "can't add group: gid %d is a duplicate", gid);
|
|
}
|
|
if (!valid_group(argv[optind])) {
|
|
warnx("warning - invalid group name `%s'", argv[optind]);
|
|
}
|
|
if (!creategid(argv[optind], gid, "")) {
|
|
err(EXIT_FAILURE, "can't add group: problems with %s file", ETCGROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_DEL_OPT_EXTENSIONS "v"
|
|
#else
|
|
#define GROUP_DEL_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* remove a group */
|
|
int
|
|
groupdel(int argc, char **argv)
|
|
{
|
|
int c;
|
|
|
|
checkeuid();
|
|
while ((c = getopt(argc, argv, "" GROUP_DEL_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("groupdel");
|
|
}
|
|
if (!modify_gid(argv[optind], (char *) NULL)) {
|
|
err(EXIT_FAILURE, "can't change %s file", ETCGROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
#define GROUP_MOD_OPT_EXTENSIONS "v"
|
|
#else
|
|
#define GROUP_MOD_OPT_EXTENSIONS
|
|
#endif
|
|
|
|
/* modify a group */
|
|
int
|
|
groupmod(int argc, char **argv)
|
|
{
|
|
struct group *grp;
|
|
char buf[MaxEntryLen];
|
|
char *newname;
|
|
char **cpp;
|
|
int dupgid;
|
|
int gid;
|
|
int cc;
|
|
int c;
|
|
|
|
checkeuid();
|
|
gid = -1;
|
|
dupgid = 0;
|
|
newname = (char *) NULL;
|
|
while ((c = getopt(argc, argv, "g:on:" GROUP_MOD_OPT_EXTENSIONS)) != -1) {
|
|
switch(c) {
|
|
case 'g':
|
|
if (!is_number(optarg)) {
|
|
errx(EXIT_FAILURE, "When using [-g gid], the gid must be numeric");
|
|
}
|
|
gid = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
dupgid = 1;
|
|
break;
|
|
case 'n':
|
|
memsave(&newname, optarg, strlen(optarg));
|
|
break;
|
|
#ifdef EXTENSIONS
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("groupmod");
|
|
}
|
|
if (gid < 0 && newname == (char *) NULL) {
|
|
err(EXIT_FAILURE, "Nothing to change");
|
|
}
|
|
if (dupgid && gid < 0) {
|
|
err(EXIT_FAILURE, "Duplicate which gid?");
|
|
}
|
|
if ((grp = getgrnam(argv[optind])) == (struct group *) NULL) {
|
|
err(EXIT_FAILURE, "can't find group `%s' to modify", argv[optind]);
|
|
}
|
|
if (newname != (char *) NULL && !valid_group(newname)) {
|
|
warn("warning - invalid group name `%s'", newname);
|
|
}
|
|
cc = snprintf(buf, sizeof(buf), "%s:%s:%d:",
|
|
(newname) ? newname : grp->gr_name,
|
|
grp->gr_passwd,
|
|
(gid < 0) ? grp->gr_gid : gid);
|
|
for (cpp = grp->gr_mem ; *cpp && cc < sizeof(buf) ; cpp++) {
|
|
cc += snprintf(&buf[cc], sizeof(buf) - cc, "%s%s", *cpp,
|
|
(cpp[1] == (char *) NULL) ? "" : ",");
|
|
}
|
|
if (!modify_gid(argv[optind], buf)) {
|
|
err(EXIT_FAILURE, "can't change %s file", ETCGROUP);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#ifdef EXTENSIONS
|
|
/* display user information */
|
|
int
|
|
userinfo(int argc, char **argv)
|
|
{
|
|
struct passwd *pwp;
|
|
struct group *grp;
|
|
char buf[MaxEntryLen];
|
|
char **cpp;
|
|
int exists;
|
|
int cc;
|
|
int i;
|
|
|
|
exists = 0;
|
|
while ((i = getopt(argc, argv, "ev")) != -1) {
|
|
switch(i) {
|
|
case 'e':
|
|
exists = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("userinfo");
|
|
}
|
|
pwp = find_user_info(argv[optind]);
|
|
if (exists) {
|
|
exit((pwp) ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
}
|
|
if (pwp == (struct passwd *) NULL) {
|
|
errx(EXIT_FAILURE, "can't find user `%s'", argv[optind]);
|
|
}
|
|
(void) printf("login\t%s\n", pwp->pw_name);
|
|
(void) printf("passwd\t%s\n", pwp->pw_passwd);
|
|
(void) printf("uid\t%d\n", pwp->pw_uid);
|
|
for (cc = 0 ; (grp = getgrent()) != (struct group *) NULL ; ) {
|
|
for (cpp = grp->gr_mem ; *cpp ; cpp++) {
|
|
if (strcmp(*cpp, argv[optind]) == 0 && grp->gr_gid != pwp->pw_gid) {
|
|
cc += snprintf(&buf[cc], sizeof(buf) - cc, "%s ", grp->gr_name);
|
|
}
|
|
}
|
|
}
|
|
if ((grp = getgrgid(pwp->pw_gid)) == (struct group *) NULL) {
|
|
(void) printf("groups\t%d %s\n", pwp->pw_gid, buf);
|
|
} else {
|
|
(void) printf("groups\t%s %s\n", grp->gr_name, buf);
|
|
}
|
|
(void) printf("change\t%s", ctime(&pwp->pw_change));
|
|
(void) printf("class\t%s\n", pwp->pw_class);
|
|
(void) printf("gecos\t%s\n", pwp->pw_gecos);
|
|
(void) printf("dir\t%s\n", pwp->pw_dir);
|
|
(void) printf("shell\t%s\n", pwp->pw_shell);
|
|
(void) printf("expire\t%s", ctime(&pwp->pw_expire));
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EXTENSIONS
|
|
/* display user information */
|
|
int
|
|
groupinfo(int argc, char **argv)
|
|
{
|
|
struct group *grp;
|
|
char **cpp;
|
|
int exists;
|
|
int i;
|
|
|
|
exists = 0;
|
|
while ((i = getopt(argc, argv, "ev")) != -1) {
|
|
switch(i) {
|
|
case 'e':
|
|
exists = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (argc == optind) {
|
|
usermgmt_usage("groupinfo");
|
|
}
|
|
grp = find_group_info(argv[optind]);
|
|
if (exists) {
|
|
exit((grp) ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
}
|
|
if (grp == (struct group *) NULL) {
|
|
errx(EXIT_FAILURE, "can't find group `%s'", argv[optind]);
|
|
}
|
|
(void) printf("name\t%s\n", grp->gr_name);
|
|
(void) printf("passwd\t%s\n", grp->gr_passwd);
|
|
(void) printf("gid\t%d\n", grp->gr_gid);
|
|
(void) printf("members\t");
|
|
for (cpp = grp->gr_mem ; *cpp ; cpp++) {
|
|
(void) printf("%s ", *cpp);
|
|
}
|
|
(void) fputc('\n', stdout);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif
|