pw.c revision 50479
120253Sjoerg/*- 220302Sjoerg * Copyright (C) 1996 320302Sjoerg * David L. Nugent. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1720302Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2420253Sjoerg * SUCH DAMAGE. 2520253Sjoerg */ 2620253Sjoerg 2730259Scharnier#ifndef lint 2830259Scharnierstatic const char rcsid[] = 2950479Speter "$FreeBSD: head/usr.sbin/pw/pw.c 50479 1999-08-28 01:35:59Z peter $"; 3030259Scharnier#endif /* not lint */ 3130259Scharnier 3230259Scharnier#include <err.h> 3338112Snate#include <fcntl.h> 3421330Sdavidn#include <paths.h> 3521330Sdavidn#include <sys/wait.h> 3644229Sdavidn#include "pw.h" 3720253Sjoerg 3820267Sjoergconst char *Modes[] = {"add", "del", "mod", "show", "next", NULL}; 3920253Sjoergconst char *Which[] = {"user", "group", NULL}; 4020267Sjoergstatic const char *Combo1[] = { 4120267Sjoerg "useradd", "userdel", "usermod", "usershow", "usernext", 4220267Sjoerg "groupadd", "groupdel", "groupmod", "groupshow", "groupnext", 4320267Sjoerg NULL}; 4420267Sjoergstatic const char *Combo2[] = { 4520267Sjoerg "adduser", "deluser", "moduser", "showuser", "nextuser", 4620267Sjoerg "addgroup", "delgroup", "modgroup", "showgroup", "nextgroup", 4720253SjoergNULL}; 4820253Sjoerg 4944229Sdavidnstruct pwf PWF = 5044229Sdavidn{ 5144229Sdavidn 0, 5244229Sdavidn setpwent, 5344229Sdavidn endpwent, 5444229Sdavidn getpwent, 5544229Sdavidn getpwuid, 5644229Sdavidn getpwnam, 5744229Sdavidn pwdb, 5844229Sdavidn setgrent, 5944229Sdavidn endgrent, 6044229Sdavidn getgrent, 6144229Sdavidn getgrgid, 6244229Sdavidn getgrnam, 6344229Sdavidn grdb 6444229Sdavidn 6544229Sdavidn}; 6644229Sdavidnstruct pwf VPWF = 6744229Sdavidn{ 6844229Sdavidn 1, 6944229Sdavidn vsetpwent, 7044229Sdavidn vendpwent, 7144229Sdavidn vgetpwent, 7244229Sdavidn vgetpwuid, 7344229Sdavidn vgetpwnam, 7444229Sdavidn vpwdb, 7544229Sdavidn vsetgrent, 7644229Sdavidn vendgrent, 7744229Sdavidn vgetgrent, 7844229Sdavidn vgetgrgid, 7944229Sdavidn vgetgrnam, 8044229Sdavidn vgrdb 8144229Sdavidn}; 8244229Sdavidn 8320253Sjoergstatic struct cargs arglist; 8420253Sjoerg 8520253Sjoergstatic int getindex(const char *words[], const char *word); 8620253Sjoergstatic void cmdhelp(int mode, int which); 8720253Sjoerg 8820253Sjoerg 8920253Sjoergint 9020253Sjoergmain(int argc, char *argv[]) 9120253Sjoerg{ 9220253Sjoerg int ch; 9320253Sjoerg int mode = -1; 9420253Sjoerg int which = -1; 9544229Sdavidn char *config = NULL; 9620253Sjoerg struct userconf *cnf; 9720253Sjoerg 9820253Sjoerg static const char *opts[W_NUM][M_NUM] = 9920253Sjoerg { 10020267Sjoerg { /* user */ 10144231Sdavidn "V:C:qn:u:c:d:e:p:g:G:mk:s:oL:i:w:h:Db:NPy:Y", 10244231Sdavidn "V:C:qn:u:rY", 10344231Sdavidn "V:C:qn:u:c:d:e:p:g:G:ml:k:s:w:L:h:FNPY", 10444386Sdavidn "V:C:qn:u:FPa7", 10544231Sdavidn "V:C:q" 10620267Sjoerg }, 10720267Sjoerg { /* grp */ 10844231Sdavidn "V:C:qn:g:h:M:pNPY", 10944231Sdavidn "V:C:qn:g:Y", 11044231Sdavidn "V:C:qn:g:l:h:FM:m:NPY", 11144231Sdavidn "V:C:qn:g:FPa", 11244231Sdavidn "V:C:q" 11320267Sjoerg } 11420253Sjoerg }; 11520253Sjoerg 11620253Sjoerg static int (*funcs[W_NUM]) (struct userconf * _cnf, int _mode, struct cargs * _args) = 11720253Sjoerg { /* Request handlers */ 11820253Sjoerg pw_user, 11920253Sjoerg pw_group 12020253Sjoerg }; 12120253Sjoerg 12220253Sjoerg umask(0); /* We wish to handle this manually */ 12320253Sjoerg LIST_INIT(&arglist); 12420253Sjoerg 12520253Sjoerg /* 12620253Sjoerg * Break off the first couple of words to determine what exactly 12720253Sjoerg * we're being asked to do 12820253Sjoerg */ 12944229Sdavidn while (argc > 1) { 13020253Sjoerg int tmp; 13120253Sjoerg 13244229Sdavidn if (*argv[1] == '-') { 13344229Sdavidn /* 13444229Sdavidn * Special case, allow pw -V<dir> <operation> [args] for scripts etc. 13544229Sdavidn */ 13644229Sdavidn if (argv[1][1] == 'V') { 13744229Sdavidn optarg = &argv[1][2]; 13844229Sdavidn if (*optarg == '\0') { 13944229Sdavidn optarg = argv[2]; 14044229Sdavidn ++argv; 14144229Sdavidn --argc; 14244229Sdavidn } 14344229Sdavidn addarg(&arglist, 'V', optarg); 14444231Sdavidn } else 14544231Sdavidn break; 14644229Sdavidn } 14744229Sdavidn else if ((tmp = getindex(Modes, argv[1])) != -1) 14820253Sjoerg mode = tmp; 14920253Sjoerg else if ((tmp = getindex(Which, argv[1])) != -1) 15020253Sjoerg which = tmp; 15120253Sjoerg else if ((tmp = getindex(Combo1, argv[1])) != -1 || (tmp = getindex(Combo2, argv[1])) != -1) { 15220253Sjoerg which = tmp / M_NUM; 15320253Sjoerg mode = tmp % M_NUM; 15420253Sjoerg } else if (strcmp(argv[1], "help") == 0) 15520253Sjoerg cmdhelp(mode, which); 15644232Sdavidn else if (which != -1 && mode != -1) 15720253Sjoerg addarg(&arglist, 'n', argv[1]); 15820253Sjoerg else 15930259Scharnier errx(EX_USAGE, "unknown keyword `%s'", argv[1]); 16020253Sjoerg ++argv; 16120253Sjoerg --argc; 16220253Sjoerg } 16320253Sjoerg 16420253Sjoerg /* 16520253Sjoerg * Bail out unless the user is specific! 16620253Sjoerg */ 16720253Sjoerg if (mode == -1 || which == -1) 16820253Sjoerg cmdhelp(mode, which); 16920253Sjoerg 17020253Sjoerg /* 17120253Sjoerg * We know which mode we're in and what we're about to do, so now 17220253Sjoerg * let's dispatch the remaining command line args in a genric way. 17320253Sjoerg */ 17420253Sjoerg optarg = NULL; 17520253Sjoerg 17620253Sjoerg while ((ch = getopt(argc, argv, opts[which][mode])) != -1) { 17720253Sjoerg if (ch == '?') 17830259Scharnier errx(EX_USAGE, NULL); 17920253Sjoerg else 18020253Sjoerg addarg(&arglist, ch, optarg); 18120253Sjoerg optarg = NULL; 18220253Sjoerg } 18320253Sjoerg 18420253Sjoerg /* 18520267Sjoerg * Must be root to attempt an update 18620267Sjoerg */ 18727474Sdavidn if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && getarg(&arglist, 'N')==NULL) 18830259Scharnier errx(EX_NOPERM, "you must be root to run this program"); 18920267Sjoerg 19020267Sjoerg /* 19120253Sjoerg * We should immediately look for the -q 'quiet' switch so that we 19220253Sjoerg * don't bother with extraneous errors 19320253Sjoerg */ 19420253Sjoerg if (getarg(&arglist, 'q') != NULL) 19520253Sjoerg freopen("/dev/null", "w", stderr); 19620253Sjoerg 19720253Sjoerg /* 19844229Sdavidn * Set our base working path if not overridden 19944229Sdavidn */ 20044229Sdavidn 20144229Sdavidn config = getarg(&arglist, 'C') ? getarg(&arglist, 'C')->val : NULL; 20244229Sdavidn 20344229Sdavidn if (getarg(&arglist, 'V') != NULL) { 20444229Sdavidn char * etcpath = getarg(&arglist, 'V')->val; 20544229Sdavidn if (*etcpath) { 20644229Sdavidn if (config == NULL) { /* Only override config location if -C not specified */ 20744229Sdavidn config = malloc(MAXPATHLEN); 20844229Sdavidn snprintf(config, MAXPATHLEN, "%s/pw.conf", etcpath); 20944229Sdavidn } 21044229Sdavidn memcpy(&PWF, &VPWF, sizeof PWF); 21144229Sdavidn setpwdir(etcpath); 21244229Sdavidn setgrdir(etcpath); 21344229Sdavidn } 21444229Sdavidn } 21544229Sdavidn 21644229Sdavidn /* 21720253Sjoerg * Now, let's do the common initialisation 21820253Sjoerg */ 21944229Sdavidn cnf = read_userconfig(config); 22038112Snate 22138110Snate ch = funcs[which] (cnf, mode, &arglist); 22221330Sdavidn 22321330Sdavidn /* 22421330Sdavidn * If everything went ok, and we've been asked to update 22521330Sdavidn * the NIS maps, then do it now 22621330Sdavidn */ 22721330Sdavidn if (ch == EXIT_SUCCESS && getarg(&arglist, 'Y') != NULL) { 22821330Sdavidn pid_t pid; 22921330Sdavidn 23021330Sdavidn fflush(NULL); 23121330Sdavidn if (chdir(_PATH_YP) == -1) 23230259Scharnier warn("chdir(" _PATH_YP ")"); 23321330Sdavidn else if ((pid = fork()) == -1) 23430259Scharnier warn("fork()"); 23521330Sdavidn else if (pid == 0) { 23621330Sdavidn /* Is make anywhere else? */ 23721330Sdavidn execlp("/usr/bin/make", "make", NULL); 23821330Sdavidn _exit(1); 23921330Sdavidn } else { 24021330Sdavidn int i; 24121330Sdavidn waitpid(pid, &i, 0); 24221330Sdavidn if ((i = WEXITSTATUS(i)) != 0) 24330259Scharnier errx(ch, "make exited with status %d", i); 24421330Sdavidn else 24521330Sdavidn pw_log(cnf, mode, which, "NIS maps updated"); 24621330Sdavidn } 24721330Sdavidn } 24821330Sdavidn return ch; 24920253Sjoerg} 25020253Sjoerg 25138112Snate 25220253Sjoergstatic int 25320253Sjoerggetindex(const char *words[], const char *word) 25420253Sjoerg{ 25520253Sjoerg int i = 0; 25620253Sjoerg 25720253Sjoerg while (words[i]) { 25820253Sjoerg if (strcmp(words[i], word) == 0) 25920253Sjoerg return i; 26020253Sjoerg i++; 26120253Sjoerg } 26220253Sjoerg return -1; 26320253Sjoerg} 26420253Sjoerg 26520253Sjoerg 26620253Sjoerg/* 26720253Sjoerg * This is probably an overkill for a cmdline help system, but it reflects 26820253Sjoerg * the complexity of the command line. 26920253Sjoerg */ 27020253Sjoerg 27120253Sjoergstatic void 27220253Sjoergcmdhelp(int mode, int which) 27320253Sjoerg{ 27420253Sjoerg if (which == -1) 27530259Scharnier fprintf(stderr, "usage: pw [user|group] [add|del|mod|show|next] [ help | switches/values ]\n"); 27620253Sjoerg else if (mode == -1) 27730259Scharnier fprintf(stderr, "usage: pw %s [add|del|mod|show|next] [ help | switches/values ]\n", Which[which]); 27820253Sjoerg else { 27920253Sjoerg 28020253Sjoerg /* 28120253Sjoerg * We need to give mode specific help 28220253Sjoerg */ 28320253Sjoerg static const char *help[W_NUM][M_NUM] = 28420253Sjoerg { 28520253Sjoerg { 28630259Scharnier "usage: pw useradd [name] [switches]\n" 28744229Sdavidn "\t-V etcdir alternate /etc location\n" 28820253Sjoerg "\t-C config configuration file\n" 28920253Sjoerg "\t-q quiet operation\n" 29020253Sjoerg " Adding users:\n" 29120253Sjoerg "\t-n name login name\n" 29220253Sjoerg "\t-u uid user id\n" 29320253Sjoerg "\t-c comment user name/comment\n" 29420253Sjoerg "\t-d directory home directory\n" 29520253Sjoerg "\t-e date account expiry date\n" 29620253Sjoerg "\t-p date password expiry date\n" 29720253Sjoerg "\t-g grp initial group\n" 29820253Sjoerg "\t-G grp1,grp2 additional groups\n" 29920253Sjoerg "\t-m [ -k dir ] create and set up home\n" 30020253Sjoerg "\t-s shell name of login shell\n" 30120253Sjoerg "\t-o duplicate uid ok\n" 30220253Sjoerg "\t-L class user class\n" 30320253Sjoerg "\t-h fd read password on fd\n" 30421330Sdavidn "\t-Y update NIS maps\n" 30520267Sjoerg "\t-N no update\n" 30620253Sjoerg " Setting defaults:\n" 30744229Sdavidn "\t-V etcdir alternate /etc location\n" 30844229Sdavidn "\t-D set user defaults\n" 30920253Sjoerg "\t-b dir default home root dir\n" 31020253Sjoerg "\t-e period default expiry period\n" 31120253Sjoerg "\t-p period default password change period\n" 31220253Sjoerg "\t-g group default group\n" 31320253Sjoerg "\t-G grp1,grp2 additional groups\n" 31420253Sjoerg "\t-L class default user class\n" 31520253Sjoerg "\t-k dir default home skeleton\n" 31620253Sjoerg "\t-u min,max set min,max uids\n" 31720253Sjoerg "\t-i min,max set min,max gids\n" 31820253Sjoerg "\t-w method set default password method\n" 31921330Sdavidn "\t-s shell default shell\n" 32021330Sdavidn "\t-y path set NIS passwd file path\n", 32130259Scharnier "usage: pw userdel [uid|name] [switches]\n" 32244229Sdavidn "\t-V etcdir alternate /etc location\n" 32320253Sjoerg "\t-n name login name\n" 32420253Sjoerg "\t-u uid user id\n" 32521330Sdavidn "\t-Y update NIS maps\n" 32620253Sjoerg "\t-r remove home & contents\n", 32730259Scharnier "usage: pw usermod [uid|name] [switches]\n" 32844229Sdavidn "\t-V etcdir alternate /etc location\n" 32920253Sjoerg "\t-C config configuration file\n" 33020253Sjoerg "\t-q quiet operation\n" 33120253Sjoerg "\t-F force add if no user\n" 33220253Sjoerg "\t-n name login name\n" 33320253Sjoerg "\t-u uid user id\n" 33420253Sjoerg "\t-c comment user name/comment\n" 33520253Sjoerg "\t-d directory home directory\n" 33620253Sjoerg "\t-e date account expiry date\n" 33720253Sjoerg "\t-p date password expiry date\n" 33820253Sjoerg "\t-g grp initial group\n" 33920253Sjoerg "\t-G grp1,grp2 additional groups\n" 34020253Sjoerg "\t-l name new login name\n" 34120253Sjoerg "\t-L class user class\n" 34220253Sjoerg "\t-m [ -k dir ] create and set up home\n" 34320253Sjoerg "\t-s shell name of login shell\n" 34420267Sjoerg "\t-w method set new password using method\n" 34520267Sjoerg "\t-h fd read password on fd\n" 34621330Sdavidn "\t-Y update NIS maps\n" 34720267Sjoerg "\t-N no update\n", 34830259Scharnier "usage: pw usershow [uid|name] [switches]\n" 34944229Sdavidn "\t-V etcdir alternate /etc location\n" 35020253Sjoerg "\t-n name login name\n" 35120253Sjoerg "\t-u uid user id\n" 35220253Sjoerg "\t-F force print\n" 35320267Sjoerg "\t-P prettier format\n" 35444386Sdavidn "\t-a print all users\n" 35544386Sdavidn "\t-7 print in v7 format\n", 35630259Scharnier "usage: pw usernext [switches]\n" 35744229Sdavidn "\t-V etcdir alternate /etc location\n" 35820267Sjoerg "\t-C config configuration file\n" 35920253Sjoerg }, 36020253Sjoerg { 36130259Scharnier "usage: pw groupadd [group|gid] [switches]\n" 36244229Sdavidn "\t-V etcdir alternate /etc location\n" 36320253Sjoerg "\t-C config configuration file\n" 36420253Sjoerg "\t-q quiet operation\n" 36520253Sjoerg "\t-n group group name\n" 36620253Sjoerg "\t-g gid group id\n" 36720267Sjoerg "\t-M usr1,usr2 add users as group members\n" 36820267Sjoerg "\t-o duplicate gid ok\n" 36921330Sdavidn "\t-Y update NIS maps\n" 37020267Sjoerg "\t-N no update\n", 37130259Scharnier "usage: pw groupdel [group|gid] [switches]\n" 37244229Sdavidn "\t-V etcdir alternate /etc location\n" 37320253Sjoerg "\t-n name group name\n" 37421330Sdavidn "\t-g gid group id\n" 37521330Sdavidn "\t-Y update NIS maps\n", 37630259Scharnier "usage: pw groupmod [group|gid] [switches]\n" 37744229Sdavidn "\t-V etcdir alternate /etc location\n" 37820253Sjoerg "\t-C config configuration file\n" 37920253Sjoerg "\t-q quiet operation\n" 38020253Sjoerg "\t-F force add if not exists\n" 38120253Sjoerg "\t-n name group name\n" 38220253Sjoerg "\t-g gid group id\n" 38320267Sjoerg "\t-M usr1,usr2 replaces users as group members\n" 38420267Sjoerg "\t-m usr1,usr2 add users as group members\n" 38520267Sjoerg "\t-l name new group name\n" 38621330Sdavidn "\t-Y update NIS maps\n" 38720267Sjoerg "\t-N no update\n", 38830259Scharnier "usage: pw groupshow [group|gid] [switches]\n" 38944229Sdavidn "\t-V etcdir alternate /etc location\n" 39020253Sjoerg "\t-n name group name\n" 39120253Sjoerg "\t-g gid group id\n" 39220253Sjoerg "\t-F force print\n" 39320267Sjoerg "\t-P prettier format\n" 39420267Sjoerg "\t-a print all accounting groups\n", 39530259Scharnier "usage: pw groupnext [switches]\n" 39644229Sdavidn "\t-V etcdir alternate /etc location\n" 39720267Sjoerg "\t-C config configuration file\n" 39820253Sjoerg } 39920253Sjoerg }; 40020253Sjoerg 40130259Scharnier fprintf(stderr, help[which][mode]); 40220253Sjoerg } 40320267Sjoerg exit(EXIT_FAILURE); 40420253Sjoerg} 40520253Sjoerg 40620253Sjoergstruct carg * 40720253Sjoerggetarg(struct cargs * _args, int ch) 40820253Sjoerg{ 40920253Sjoerg struct carg *c = _args->lh_first; 41020253Sjoerg 41120253Sjoerg while (c != NULL && c->ch != ch) 41220253Sjoerg c = c->list.le_next; 41320253Sjoerg return c; 41420253Sjoerg} 41520253Sjoerg 41620253Sjoergstruct carg * 41720253Sjoergaddarg(struct cargs * _args, int ch, char *argstr) 41820253Sjoerg{ 41920253Sjoerg struct carg *ca = malloc(sizeof(struct carg)); 42020253Sjoerg 42120253Sjoerg if (ca == NULL) 42230259Scharnier errx(EX_OSERR, "out of memory"); 42320253Sjoerg ca->ch = ch; 42420253Sjoerg ca->val = argstr; 42520253Sjoerg LIST_INSERT_HEAD(_args, ca, list); 42620253Sjoerg return ca; 42720253Sjoerg} 428