diff options
Diffstat (limited to 'usr.sbin/pw/pw.c')
-rw-r--r-- | usr.sbin/pw/pw.c | 452 |
1 files changed, 452 insertions, 0 deletions
diff --git a/usr.sbin/pw/pw.c b/usr.sbin/pw/pw.c new file mode 100644 index 0000000..b0ac728 --- /dev/null +++ b/usr.sbin/pw/pw.c @@ -0,0 +1,452 @@ +/*- + * 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 <paths.h> +#include <sys/wait.h> +#include "pw.h" + +#if !defined(_PATH_YP) +#define _PATH_YP "/var/yp/" +#endif +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 = +{ + 0, + setpwent, + endpwent, + getpwent, + getpwuid, + getpwnam, + setgrent, + endgrent, + getgrent, + getgrgid, + getgrnam, + +}; +struct pwf VPWF = +{ + 1, + vsetpwent, + vendpwent, + vgetpwent, + vgetpwuid, + vgetpwnam, + vsetgrent, + vendgrent, + vgetgrent, + vgetgrgid, + vgetgrnam, +}; + +static struct cargs arglist; + +static int getindex(const char *words[], const char *word); +static void cmdhelp(int mode, int which); + + +int +main(int argc, char *argv[]) +{ + int ch; + int mode = -1; + int which = -1; + char *config = NULL; + struct userconf *cnf; + + static const char *opts[W_NUM][M_NUM] = + { + { /* user */ + "V:C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y", + "V:C:qn:u:rY", + "V:C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:FNPY", + "V:C:qn:u:FPa7", + "V:C:q", + "V:C:q", + "V:C:q" + }, + { /* grp */ + "V:C:qn:g:h:H:M:opNPY", + "V:C:qn:g:Y", + "V:C:qn:d:g:l:h:H:FM:m:NPY", + "V:C:qn:g:FPa", + "V:C:q" + } + }; + + static int (*funcs[W_NUM]) (struct userconf * _cnf, int _mode, struct cargs * _args) = + { /* Request handlers */ + pw_user, + pw_group + }; + + LIST_INIT(&arglist); + + (void)setlocale(LC_ALL, ""); + + /* + * Break off the first couple of words to determine what exactly + * we're being asked to do + */ + while (argc > 1) { + int tmp; + + if (*argv[1] == '-') { + /* + * Special case, allow pw -V<dir> <operation> [args] for scripts etc. + */ + if (argv[1][1] == 'V') { + optarg = &argv[1][2]; + if (*optarg == '\0') { + optarg = argv[2]; + ++argv; + --argc; + } + addarg(&arglist, 'V', optarg); + } 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) + addarg(&arglist, 'n', 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); + + /* + * We know which mode we're in and what we're about to do, so now + * let's dispatch the remaining command line args in a genric way. + */ + optarg = NULL; + + while ((ch = getopt(argc, argv, opts[which][mode])) != -1) { + if (ch == '?') + errx(EX_USAGE, "unknown switch"); + else + addarg(&arglist, ch, optarg); + optarg = NULL; + } + + /* + * Must be root to attempt an update + */ + if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && getarg(&arglist, 'N')==NULL) + errx(EX_NOPERM, "you must be root to run this program"); + + /* + * We should immediately look for the -q 'quiet' switch so that we + * don't bother with extraneous errors + */ + if (getarg(&arglist, 'q') != NULL) + freopen(_PATH_DEVNULL, "w", stderr); + + /* + * Set our base working path if not overridden + */ + + config = getarg(&arglist, 'C') ? getarg(&arglist, 'C')->val : NULL; + + if (getarg(&arglist, 'V') != NULL) { + char * etcpath = getarg(&arglist, 'V')->val; + if (*etcpath) { + if (config == NULL) { /* Only override config location if -C not specified */ + config = malloc(MAXPATHLEN); + snprintf(config, MAXPATHLEN, "%s/pw.conf", etcpath); + } + memcpy(&PWF, &VPWF, sizeof PWF); + setpwdir(etcpath); + setgrdir(etcpath); + } + } + + /* + * Now, let's do the common initialisation + */ + cnf = read_userconfig(config); + + ch = funcs[which] (cnf, mode, &arglist); + + /* + * If everything went ok, and we've been asked to update + * the NIS maps, then do it now + */ + if (ch == EXIT_SUCCESS && getarg(&arglist, 'Y') != NULL) { + pid_t pid; + + fflush(NULL); + if (chdir(_PATH_YP) == -1) + warn("chdir(" _PATH_YP ")"); + else if ((pid = fork()) == -1) + warn("fork()"); + else if (pid == 0) { + /* Is make anywhere else? */ + execlp("/usr/bin/make", "make", (char *)NULL); + _exit(1); + } else { + int i; + waitpid(pid, &i, 0); + if ((i = WEXITSTATUS(i)) != 0) + errx(ch, "make exited with status %d", i); + else + pw_log(cnf, mode, which, "NIS maps updated"); + } + } + return ch; +} + + +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-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-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-n name login name\n" + "\t-u uid user id\n" + "\t-Y update NIS maps\n" + "\t-r remove home & contents\n", + "usage: pw usermod [uid|name] [switches]\n" + "\t-V etcdir alternate /etc location\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-N no update\n", + "usage: pw usershow [uid|name] [switches]\n" + "\t-V etcdir alternate /etc location\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-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-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-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-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-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-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 = 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; +} |