614 lines
17 KiB
C
614 lines
17 KiB
C
/*-
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* Copyright (C) 1996
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* David L. Nugent. 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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*
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* THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <err.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <paths.h>
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#include <stdbool.h>
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#include <sys/wait.h>
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#include "pw.h"
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#if !defined(_PATH_YP)
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#define _PATH_YP "/var/yp/"
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#endif
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const char *Modes[] = {
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"add", "del", "mod", "show", "next",
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NULL};
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const char *Which[] = {"user", "group", NULL};
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static const char *Combo1[] = {
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"useradd", "userdel", "usermod", "usershow", "usernext",
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"lock", "unlock",
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"groupadd", "groupdel", "groupmod", "groupshow", "groupnext",
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NULL};
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static const char *Combo2[] = {
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"adduser", "deluser", "moduser", "showuser", "nextuser",
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"lock", "unlock",
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"addgroup", "delgroup", "modgroup", "showgroup", "nextgroup",
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NULL};
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struct pwf PWF =
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{
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PWF_REGULAR,
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setpwent,
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endpwent,
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getpwent,
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getpwuid,
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getpwnam,
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setgrent,
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endgrent,
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getgrent,
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getgrgid,
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getgrnam,
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};
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struct pwf VPWF =
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{
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PWF_ALT,
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vsetpwent,
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vendpwent,
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vgetpwent,
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vgetpwuid,
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vgetpwnam,
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vsetgrent,
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vendgrent,
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vgetgrent,
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vgetgrgid,
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vgetgrnam,
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};
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struct pwconf conf;
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static struct cargs arglist;
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static int getindex(const char *words[], const char *word);
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static void cmdhelp(int mode, int which);
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int
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main(int argc, char *argv[])
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{
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int ch;
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int mode = -1;
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int which = -1;
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long id = -1;
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char *config = NULL;
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struct stat st;
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const char *errstr;
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char arg, *name;
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bool relocated, nis;
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static const char *opts[W_NUM][M_NUM] =
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{
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{ /* user */
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"R:V:C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y",
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"R:V:C:qn:u:rY",
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"R:V:C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:FNPY",
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"R:V:C:qn:u:FPa7",
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"R:V:C:q",
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"R:V:C:q",
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"R:V:C:q"
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},
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{ /* grp */
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"R:V:C:qn:g:h:H:M:opNPY",
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"R:V:C:qn:g:Y",
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"R:V:C:qn:d:g:l:h:H:FM:m:NPY",
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"R:V:C:qn:g:FPa",
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"R:V:C:q"
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}
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};
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static int (*funcs[W_NUM]) (int _mode, char *_name, long _id,
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struct cargs * _args) =
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{ /* Request handlers */
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pw_user,
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pw_group
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};
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name = NULL;
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relocated = nis = false;
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memset(&conf, 0, sizeof(conf));
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strlcpy(conf.rootdir, "/", sizeof(conf.rootdir));
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strlcpy(conf.etcpath, _PATH_PWD, sizeof(conf.etcpath));
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conf.fd = -1;
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conf.checkduplicate = true;
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LIST_INIT(&arglist);
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(void)setlocale(LC_ALL, "");
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/*
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* Break off the first couple of words to determine what exactly
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* we're being asked to do
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*/
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while (argc > 1) {
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int tmp;
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if (*argv[1] == '-') {
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/*
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* Special case, allow pw -V<dir> <operation> [args] for scripts etc.
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*/
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arg = argv[1][1];
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if (arg == 'V' || arg == 'R') {
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if (relocated)
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errx(EXIT_FAILURE, "Both '-R' and '-V' "
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"specified, only one accepted");
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relocated = true;
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optarg = &argv[1][2];
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if (*optarg == '\0') {
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if (stat(argv[2], &st) != 0)
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errx(EX_OSFILE, \
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"no such directory `%s'",
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argv[2]);
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if (!S_ISDIR(st.st_mode))
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errx(EX_OSFILE, "`%s' not a "
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"directory", argv[2]);
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optarg = argv[2];
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++argv;
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--argc;
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}
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memcpy(&PWF, &VPWF, sizeof PWF);
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if (arg == 'R') {
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strlcpy(conf.rootdir, optarg,
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sizeof(conf.rootdir));
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PWF._altdir = PWF_ROOTDIR;
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}
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snprintf(conf.etcpath, sizeof(conf.etcpath),
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"%s%s", optarg, arg == 'R' ? "/etc" : "");
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} else
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break;
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}
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else if (mode == -1 && (tmp = getindex(Modes, argv[1])) != -1)
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mode = tmp;
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else if (which == -1 && (tmp = getindex(Which, argv[1])) != -1)
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which = tmp;
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else if ((mode == -1 && which == -1) &&
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((tmp = getindex(Combo1, argv[1])) != -1 ||
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(tmp = getindex(Combo2, argv[1])) != -1)) {
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which = tmp / M_NUM;
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mode = tmp % M_NUM;
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} else if (strcmp(argv[1], "help") == 0 && argv[2] == NULL)
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cmdhelp(mode, which);
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else if (which != -1 && mode != -1) {
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if (strspn(argv[1], "0123456789") == strlen(argv[1])) {
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id = strtonum(argv[1], 0, LONG_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "Bad id '%s': %s",
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argv[1], errstr);
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} else
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name = argv[1];
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} else
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errx(EX_USAGE, "unknown keyword `%s'", argv[1]);
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++argv;
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--argc;
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}
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/*
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* Bail out unless the user is specific!
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*/
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if (mode == -1 || which == -1)
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cmdhelp(mode, which);
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conf.rootfd = open(conf.rootdir, O_DIRECTORY|O_CLOEXEC);
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if (conf.rootfd == -1)
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errx(EXIT_FAILURE, "Unable to open '%s'", conf.rootdir);
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conf.which = which;
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/*
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* We know which mode we're in and what we're about to do, so now
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* let's dispatch the remaining command line args in a genric way.
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*/
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optarg = NULL;
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while ((ch = getopt(argc, argv, opts[which][mode])) != -1) {
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switch (ch) {
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case '?':
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errx(EX_USAGE, "unknown switch");
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break;
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case '7':
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conf.v7 = true;
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break;
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case 'C':
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conf.config = optarg;
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config = conf.config;
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break;
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case 'F':
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conf.force = true;
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break;
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case 'N':
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conf.dryrun = true;
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break;
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case 'l':
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if (strlen(optarg) >= MAXLOGNAME)
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errx(EX_USAGE, "new name too long: %s", optarg);
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conf.newname = optarg;
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break;
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case 'P':
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conf.pretty = true;
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break;
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case 'Y':
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nis = true;
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break;
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case 'a':
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conf.all = true;
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break;
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case 'c':
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conf.gecos = pw_checkname(optarg, 1);
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break;
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case 'g':
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if (which == 0) { /* for user* */
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addarg(&arglist, 'g', optarg);
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break;
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}
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if (strspn(optarg, "0123456789") != strlen(optarg))
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errx(EX_USAGE, "-g expects a number");
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id = strtonum(optarg, 0, LONG_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "Bad id '%s': %s", optarg,
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errstr);
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break;
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case 'u':
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if (strspn(optarg, "0123456789,") != strlen(optarg))
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errx(EX_USAGE, "-u expects a number");
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if (strchr(optarg, ',') != NULL) {
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addarg(&arglist, 'u', optarg);
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break;
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}
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id = strtonum(optarg, 0, LONG_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "Bad id '%s': %s", optarg,
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errstr);
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break;
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case 'n':
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if (strspn(optarg, "0123456789") != strlen(optarg)) {
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name = optarg;
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break;
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}
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id = strtonum(optarg, 0, LONG_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "Bad id '%s': %s", optarg,
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errstr);
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break;
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case 'H':
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if (conf.fd != -1)
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errx(EX_USAGE, "'-h' and '-H' are mutually "
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"exclusive options");
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conf.precrypted = true;
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if (strspn(optarg, "0123456789") != strlen(optarg))
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errx(EX_USAGE, "'-H' expects a file descriptor");
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conf.fd = strtonum(optarg, 0, INT_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "Bad file descriptor '%s': %s",
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optarg, errstr);
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break;
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case 'h':
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if (conf.fd != -1)
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errx(EX_USAGE, "'-h' and '-H' are mutually "
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"exclusive options");
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if (strcmp(optarg, "-") == 0)
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conf.fd = '-';
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else if (strspn(optarg, "0123456789") == strlen(optarg)) {
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conf.fd = strtonum(optarg, 0, INT_MAX, &errstr);
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if (errstr != NULL)
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errx(EX_USAGE, "'-h' expects a "
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"file descriptor or '-'");
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} else
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errx(EX_USAGE, "'-h' expects a file "
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"descriptor or '-'");
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break;
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case 'o':
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conf.checkduplicate = false;
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break;
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case 'q':
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conf.quiet = true;
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break;
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case 'r':
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conf.deletehome = true;
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break;
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default:
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addarg(&arglist, ch, optarg);
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break;
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}
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optarg = NULL;
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}
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if (name != NULL && strlen(name) >= MAXLOGNAME)
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errx(EX_USAGE, "name too long: %s", name);
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/*
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* Must be root to attempt an update
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*/
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if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && !conf.dryrun)
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errx(EX_NOPERM, "you must be root to run this program");
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/*
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* We should immediately look for the -q 'quiet' switch so that we
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* don't bother with extraneous errors
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*/
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if (conf.quiet)
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freopen(_PATH_DEVNULL, "w", stderr);
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/*
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* Set our base working path if not overridden
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*/
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if (config == NULL) { /* Only override config location if -C not specified */
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asprintf(&config, "%s/pw.conf", conf.etcpath);
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if (config == NULL)
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errx(EX_OSERR, "out of memory");
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}
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/*
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* Now, let's do the common initialisation
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*/
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conf.userconf = read_userconfig(config);
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ch = funcs[which] (mode, name, id, &arglist);
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/*
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* If everything went ok, and we've been asked to update
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* the NIS maps, then do it now
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*/
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if (ch == EXIT_SUCCESS && nis) {
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pid_t pid;
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fflush(NULL);
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if (chdir(_PATH_YP) == -1)
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warn("chdir(" _PATH_YP ")");
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else if ((pid = fork()) == -1)
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warn("fork()");
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else if (pid == 0) {
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/* Is make anywhere else? */
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execlp("/usr/bin/make", "make", (char *)NULL);
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_exit(1);
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} else {
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int i;
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waitpid(pid, &i, 0);
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if ((i = WEXITSTATUS(i)) != 0)
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errx(ch, "make exited with status %d", i);
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else
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pw_log(conf.userconf, mode, which, "NIS maps updated");
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}
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}
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return ch;
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}
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static int
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getindex(const char *words[], const char *word)
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{
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int i = 0;
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while (words[i]) {
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if (strcmp(words[i], word) == 0)
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return i;
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i++;
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}
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return -1;
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}
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/*
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* This is probably an overkill for a cmdline help system, but it reflects
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* the complexity of the command line.
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*/
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static void
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cmdhelp(int mode, int which)
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{
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if (which == -1)
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fprintf(stderr, "usage:\n pw [user|group|lock|unlock] [add|del|mod|show|next] [help|switches/values]\n");
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else if (mode == -1)
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fprintf(stderr, "usage:\n pw %s [add|del|mod|show|next] [help|switches/values]\n", Which[which]);
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else {
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/*
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* We need to give mode specific help
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*/
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static const char *help[W_NUM][M_NUM] =
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{
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{
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"usage: pw useradd [name] [switches]\n"
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"\t-V etcdir alternate /etc location\n"
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"\t-R rootir alternate root directory\n"
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"\t-C config configuration file\n"
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"\t-q quiet operation\n"
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" Adding users:\n"
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"\t-n name login name\n"
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"\t-u uid user id\n"
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"\t-c comment user name/comment\n"
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"\t-d directory home directory\n"
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"\t-e date account expiry date\n"
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"\t-p date password expiry date\n"
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"\t-g grp initial group\n"
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"\t-G grp1,grp2 additional groups\n"
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"\t-m [ -k dir ] create and set up home\n"
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"\t-M mode home directory permissions\n"
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"\t-s shell name of login shell\n"
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"\t-o duplicate uid ok\n"
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"\t-L class user class\n"
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"\t-h fd read password on fd\n"
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"\t-H fd read encrypted password on fd\n"
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"\t-Y update NIS maps\n"
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"\t-N no update\n"
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" Setting defaults:\n"
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"\t-V etcdir alternate /etc location\n"
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"\t-R rootir alternate root directory\n"
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"\t-D set user defaults\n"
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"\t-b dir default home root dir\n"
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"\t-e period default expiry period\n"
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"\t-p period default password change period\n"
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"\t-g group default group\n"
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"\t-G grp1,grp2 additional groups\n"
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"\t-L class default user class\n"
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"\t-k dir default home skeleton\n"
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"\t-M mode home directory permissions\n"
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"\t-u min,max set min,max uids\n"
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"\t-i min,max set min,max gids\n"
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"\t-w method set default password method\n"
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"\t-s shell default shell\n"
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"\t-y path set NIS passwd file path\n",
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"usage: pw userdel [uid|name] [switches]\n"
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"\t-V etcdir alternate /etc location\n"
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"\t-R rootir alternate root directory\n"
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"\t-n name login name\n"
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"\t-u uid user id\n"
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"\t-Y update NIS maps\n"
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"\t-r remove home & contents\n",
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"usage: pw usermod [uid|name] [switches]\n"
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"\t-V etcdir alternate /etc location\n"
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"\t-R rootir alternate root directory\n"
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"\t-C config configuration file\n"
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"\t-q quiet operation\n"
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"\t-F force add if no user\n"
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"\t-n name login name\n"
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"\t-u uid user id\n"
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"\t-c comment user name/comment\n"
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"\t-d directory home directory\n"
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"\t-e date account expiry date\n"
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"\t-p date password expiry date\n"
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"\t-g grp initial group\n"
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"\t-G grp1,grp2 additional groups\n"
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"\t-l name new login name\n"
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"\t-L class user class\n"
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"\t-m [ -k dir ] create and set up home\n"
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"\t-M mode home directory permissions\n"
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"\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-N no update\n",
|
|
"usage: pw usershow [uid|name] [switches]\n"
|
|
"\t-V etcdir alternate /etc location\n"
|
|
"\t-R rootir 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 rootir 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 rootir 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 rootir 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 rootir 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 rootir 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 rootir alternate root directory\n"
|
|
"\t-C config configuration file\n"
|
|
"\t-q quiet operation\n"
|
|
}
|
|
};
|
|
|
|
fprintf(stderr, "%s", help[which][mode]);
|
|
}
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
struct carg *
|
|
getarg(struct cargs * _args, int ch)
|
|
{
|
|
struct carg *c;
|
|
|
|
if (_args == NULL)
|
|
return (NULL);
|
|
|
|
c = LIST_FIRST(_args);
|
|
|
|
while (c != NULL && c->ch != ch)
|
|
c = LIST_NEXT(c, list);
|
|
return c;
|
|
}
|
|
|
|
struct carg *
|
|
addarg(struct cargs * _args, int ch, char *argstr)
|
|
{
|
|
struct carg *ca = malloc(sizeof(struct carg));
|
|
|
|
if (ca == NULL)
|
|
errx(EX_OSERR, "out of memory");
|
|
ca->ch = ch;
|
|
ca->val = argstr;
|
|
LIST_INSERT_HEAD(_args, ca, list);
|
|
return ca;
|
|
}
|