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freebsd-dev/usr.sbin/pw/pw.c
Pedro F. Giffuni 1de7b4b805 various: general adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00

384 lines
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 1996
* David L. Nugent. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <err.h>
#include <fcntl.h>
#include <locale.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "pw.h"
const char *Modes[] = {
"add", "del", "mod", "show", "next",
NULL};
const char *Which[] = {"user", "group", NULL};
static const char *Combo1[] = {
"useradd", "userdel", "usermod", "usershow", "usernext",
"lock", "unlock",
"groupadd", "groupdel", "groupmod", "groupshow", "groupnext",
NULL};
static const char *Combo2[] = {
"adduser", "deluser", "moduser", "showuser", "nextuser",
"lock", "unlock",
"addgroup", "delgroup", "modgroup", "showgroup", "nextgroup",
NULL};
struct pwf PWF =
{
PWF_REGULAR,
setpwent,
endpwent,
getpwent,
getpwuid,
getpwnam,
setgrent,
endgrent,
getgrent,
getgrgid,
getgrnam,
};
struct pwf VPWF =
{
PWF_ALT,
vsetpwent,
vendpwent,
vgetpwent,
vgetpwuid,
vgetpwnam,
vsetgrent,
vendgrent,
vgetgrent,
vgetgrgid,
vgetgrnam,
};
static int (*cmdfunc[W_NUM][M_NUM])(int argc, char **argv, char *_name) = {
{ /* user */
pw_user_add,
pw_user_del,
pw_user_mod,
pw_user_show,
pw_user_next,
pw_user_lock,
pw_user_unlock,
},
{ /* group */
pw_group_add,
pw_group_del,
pw_group_mod,
pw_group_show,
pw_group_next,
}
};
struct pwconf conf;
static int getindex(const char *words[], const char *word);
static void cmdhelp(int mode, int which);
int
main(int argc, char *argv[])
{
int mode = -1, which = -1, tmp;
struct stat st;
char arg, *arg1;
bool relocated, nis;
arg1 = NULL;
relocated = nis = false;
memset(&conf, 0, sizeof(conf));
strlcpy(conf.rootdir, "/", sizeof(conf.rootdir));
strlcpy(conf.etcpath, _PATH_PWD, sizeof(conf.etcpath));
conf.fd = -1;
conf.checkduplicate = true;
setlocale(LC_ALL, "");
/*
* Break off the first couple of words to determine what exactly
* we're being asked to do
*/
while (argc > 1) {
if (*argv[1] == '-') {
/*
* Special case, allow pw -V<dir> <operation> [args] for scripts etc.
*/
arg = argv[1][1];
if (arg == 'V' || arg == 'R') {
if (relocated)
errx(EXIT_FAILURE, "Both '-R' and '-V' "
"specified, only one accepted");
relocated = true;
optarg = &argv[1][2];
if (*optarg == '\0') {
if (stat(argv[2], &st) != 0)
errx(EX_OSFILE, \
"no such directory `%s'",
argv[2]);
if (!S_ISDIR(st.st_mode))
errx(EX_OSFILE, "`%s' not a "
"directory", argv[2]);
optarg = argv[2];
++argv;
--argc;
}
memcpy(&PWF, &VPWF, sizeof PWF);
if (arg == 'R') {
strlcpy(conf.rootdir, optarg,
sizeof(conf.rootdir));
PWF._altdir = PWF_ROOTDIR;
}
snprintf(conf.etcpath, sizeof(conf.etcpath),
"%s%s", optarg, arg == 'R' ? "/etc" : "");
} else
break;
}
else if (mode == -1 && (tmp = getindex(Modes, argv[1])) != -1)
mode = tmp;
else if (which == -1 && (tmp = getindex(Which, argv[1])) != -1)
which = tmp;
else if ((mode == -1 && which == -1) &&
((tmp = getindex(Combo1, argv[1])) != -1 ||
(tmp = getindex(Combo2, argv[1])) != -1)) {
which = tmp / M_NUM;
mode = tmp % M_NUM;
} else if (strcmp(argv[1], "help") == 0 && argv[2] == NULL)
cmdhelp(mode, which);
else if (which != -1 && mode != -1)
arg1 = argv[1];
else
errx(EX_USAGE, "unknown keyword `%s'", argv[1]);
++argv;
--argc;
}
/*
* Bail out unless the user is specific!
*/
if (mode == -1 || which == -1)
cmdhelp(mode, which);
conf.rootfd = open(conf.rootdir, O_DIRECTORY|O_CLOEXEC);
if (conf.rootfd == -1)
errx(EXIT_FAILURE, "Unable to open '%s'", conf.rootdir);
return (cmdfunc[which][mode](argc, argv, arg1));
}
static int
getindex(const char *words[], const char *word)
{
int i = 0;
while (words[i]) {
if (strcmp(words[i], word) == 0)
return (i);
i++;
}
return (-1);
}
/*
* This is probably an overkill for a cmdline help system, but it reflects
* the complexity of the command line.
*/
static void
cmdhelp(int mode, int which)
{
if (which == -1)
fprintf(stderr, "usage:\n pw [user|group|lock|unlock] [add|del|mod|show|next] [help|switches/values]\n");
else if (mode == -1)
fprintf(stderr, "usage:\n pw %s [add|del|mod|show|next] [help|switches/values]\n", Which[which]);
else {
/*
* We need to give mode specific help
*/
static const char *help[W_NUM][M_NUM] =
{
{
"usage: pw useradd [name] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
" Adding users:\n"
"\t-n name login name\n"
"\t-u uid user id\n"
"\t-c comment user name/comment\n"
"\t-d directory home directory\n"
"\t-e date account expiry date\n"
"\t-p date password expiry date\n"
"\t-g grp initial group\n"
"\t-G grp1,grp2 additional groups\n"
"\t-m [ -k dir ] create and set up home\n"
"\t-M mode home directory permissions\n"
"\t-s shell name of login shell\n"
"\t-o duplicate uid ok\n"
"\t-L class user class\n"
"\t-h fd read password on fd\n"
"\t-H fd read encrypted password on fd\n"
"\t-Y update NIS maps\n"
"\t-N no update\n"
" Setting defaults:\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-D set user defaults\n"
"\t-b dir default home root dir\n"
"\t-e period default expiry period\n"
"\t-p period default password change period\n"
"\t-g group default group\n"
"\t-G grp1,grp2 additional groups\n"
"\t-L class default user class\n"
"\t-k dir default home skeleton\n"
"\t-M mode home directory permissions\n"
"\t-u min,max set min,max uids\n"
"\t-i min,max set min,max gids\n"
"\t-w method set default password method\n"
"\t-s shell default shell\n"
"\t-y path set NIS passwd file path\n",
"usage: pw userdel [uid|name] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-n name login name\n"
"\t-u uid user id\n"
"\t-Y update NIS maps\n"
"\t-y path set NIS passwd file path\n"
"\t-r remove home & contents\n",
"usage: pw usermod [uid|name] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
"\t-F force add if no user\n"
"\t-n name login name\n"
"\t-u uid user id\n"
"\t-c comment user name/comment\n"
"\t-d directory home directory\n"
"\t-e date account expiry date\n"
"\t-p date password expiry date\n"
"\t-g grp initial group\n"
"\t-G grp1,grp2 additional groups\n"
"\t-l name new login name\n"
"\t-L class user class\n"
"\t-m [ -k dir ] create and set up home\n"
"\t-M mode home directory permissions\n"
"\t-s shell name of login shell\n"
"\t-w method set new password using method\n"
"\t-h fd read password on fd\n"
"\t-H fd read encrypted password on fd\n"
"\t-Y update NIS maps\n"
"\t-y path set NIS passwd file path\n"
"\t-N no update\n",
"usage: pw usershow [uid|name] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-n name login name\n"
"\t-u uid user id\n"
"\t-F force print\n"
"\t-P prettier format\n"
"\t-a print all users\n"
"\t-7 print in v7 format\n",
"usage: pw usernext [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n",
"usage pw: lock [switches]\n"
"\t-V etcdir alternate /etc locations\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n",
"usage pw: unlock [switches]\n"
"\t-V etcdir alternate /etc locations\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
},
{
"usage: pw groupadd [group|gid] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
"\t-n group group name\n"
"\t-g gid group id\n"
"\t-M usr1,usr2 add users as group members\n"
"\t-o duplicate gid ok\n"
"\t-Y update NIS maps\n"
"\t-N no update\n",
"usage: pw groupdel [group|gid] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-n name group name\n"
"\t-g gid group id\n"
"\t-Y update NIS maps\n",
"usage: pw groupmod [group|gid] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
"\t-F force add if not exists\n"
"\t-n name group name\n"
"\t-g gid group id\n"
"\t-M usr1,usr2 replaces users as group members\n"
"\t-m usr1,usr2 add users as group members\n"
"\t-d usr1,usr2 delete users as group members\n"
"\t-l name new group name\n"
"\t-Y update NIS maps\n"
"\t-N no update\n",
"usage: pw groupshow [group|gid] [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-n name group name\n"
"\t-g gid group id\n"
"\t-F force print\n"
"\t-P prettier format\n"
"\t-a print all accounting groups\n",
"usage: pw groupnext [switches]\n"
"\t-V etcdir alternate /etc location\n"
"\t-R rootdir alternate root directory\n"
"\t-C config configuration file\n"
"\t-q quiet operation\n"
}
};
fprintf(stderr, "%s", help[which][mode]);
}
exit(EXIT_FAILURE);
}
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