Adds optional NIS passwd file updating and optionally rebuilding

NIS maps.

Suggested by:	Peter Wemm

8 files changed, 202 insertions, 22 deletions

diff --git a/pw/Makefile b/pw/Makefile
index ae8ec1e..c752a61 100644
--- a/pw/Makefile
+++ b/pw/Makefile
@@ -1,7 +1,7 @@
-# $Id: Makefile,v 1.1.1.3 1996/12/10 23:58:50 joerg Exp $
+# $Id: Makefile,v 1.2 1996/12/17 14:15:33 davidn Exp $
 
 PROG=	pw
-SRCS=	pw.c pw_conf.c pw_user.c pw_group.c pw_log.c \
+SRCS=	pw.c pw_conf.c pw_user.c pw_group.c pw_log.c pw_nis.c \
 	grupd.c pwupd.c fileupd.c edgroup.c psdate.c \
 	bitmap.c cpdir.c rm_r.c
 
diff --git a/pw/pw.8 b/pw/pw.8
index f0aa9f7..7b8ebad 100644
--- a/pw/pw.8
+++ b/pw/pw.8
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$Id: pw.8,v 1.4 1996/12/11 00:07:19 joerg Exp $
+.\"	$Id: pw.8,v 1.5 1996/12/19 15:22:41 davidn Exp $
 .\"
 .Dd December 9, 1996
 .Dt PW 8
@@ -52,10 +52,11 @@
 .Op Fl h Ar fd
 .Op Fl N
 .Op Fl P
+.Op Fl Y
 .Nm pw
 .Ar useradd
 .Op name|uid
-.Op Fl D
+.Fl D
 .Op Fl C Ar config
 .Op Fl q
 .Op Fl b Ar dir
@@ -68,12 +69,14 @@
 .Op Fl i Ar min,max
 .Op Fl w Ar method
 .Op Fl s Ar shell
+.Op Fl y Ar path
 .Nm pw
 .Ar userdel
 .Op name|uid
 .Op Fl n Ar name
 .Op Fl u Ar uid
 .Op Fl r
+.Op Fl Y
 .Nm pw
 .Ar usermod
 .Op name|uid
@@ -96,6 +99,7 @@
 .Op Fl h Ar fd
 .Op Fl N
 .Op Fl P
+.Op Fl Y
 .Nm pw
 .Ar usershow
 .Op name|uid
@@ -120,10 +124,12 @@
 .Op Fl h Ar fd
 .Op Fl N
 .Op Fl P
+.Op Fl Y
 .Nm pw
 .Ar groupdel
 .Op Fl n Ar name
 .Op Fl g Ar gid
+.Op Fl Y
 .Nm pw
 .Ar groupmod
 .Op Fl C Ar config
@@ -137,6 +143,7 @@
 .Op Fl h Ar fd
 .Op Fl N
 .Op Fl P
+.Op Fl Y
 .Nm pw
 .Ar groupshow
 .Op Fl n Ar name
@@ -194,7 +201,7 @@ id as an alternative to using the
 .Fl g Ar gid
 options.
 .Pp
-The following flags are common to all modes of operation:
+The following flags are common to all or most modes of operation:
 .Pp
 .Bl -tag -width "-G grouplist"
 .It Fl C Ar config
@@ -224,6 +231,19 @@ of the operation without actually performing it.
 You may use the
 .Fl P
 option to switch between standard passwd and readable formats.
+.It Fl Y
+Using this option with any of the update modes causes
+.Nm pw
+to run
+.Xr make 1
+after changing to the directory
+.Pa /var/yp .
+This is intended to allow automatic updating of the NIS database files.
+If separate passwd and group files are being used by NIS, then use the
+.Fl y Ar path
+option to specify the location of the NIS passwd database so that pw
+will automatically update it concurrently with the system password
+databases.
 .El
 .Pp
 .Sh USER OPTIONS
@@ -558,6 +578,12 @@ The
 method requires that the superuser use
 .Xr passwd 1
 to render the account accessible with a password.
+.It Fl y Ar path
+This sets the pathname of the database used by NIS if you are not sharing
+the information from
+.Pa /etc/master.passwd
+directly with NIS.
+You should only set this option on NIS servers.
 .El
 .Pp
 The
diff --git a/pw/pw.c b/pw/pw.c
index 96baab4..e9d55cc 100644
--- a/pw/pw.c
+++ b/pw/pw.c
@@ -23,10 +23,12 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: pw.c,v 1.1.1.2 1996/12/09 23:55:20 joerg Exp $
+ *	$Id: pw.c,v 1.1.1.3 1996/12/10 23:58:58 joerg Exp $
  */
 
 #include "pw.h"
+#include <paths.h>
+#include <sys/wait.h>
 
 static char    *progname = "pw";
 
@@ -58,16 +60,16 @@ main(int argc, char *argv[])
 	static const char *opts[W_NUM][M_NUM] =
 	{
 		{ /* user */
-			"C:qn:u:c:d:e:p:g:G:mk:s:oL:i:w:h:Db:NP",
-			"C:qn:u:r",
-			"C:qn:u:c:d:e:p:g:G:mk:s:w:L:h:FNP",
+			"C:qn:u:c:d:e:p:g:G:mk:s:oL:i:w:h:Db:NPy:Y",
+			"C:qn:u:rY",
+			"C:qn:u:c:d:e:p:g:G:mk:s:w:L:h:FNPY",
 			"C:qn:u:FPa",
 			"C:q"
 		},
 		{ /* grp  */
-			"C:qn:g:h:M:pNP",
-			"C:qn:g:",
-			"C:qn:g:l:h:FM:m:NP",
+			"C:qn:g:h:M:pNPY",
+			"C:qn:g:Y",
+			"C:qn:g:l:h:FM:m:NPY",
 			"C:qn:g:FPa",
 			"C:q"
 		 }
@@ -150,7 +152,34 @@ main(int argc, char *argv[])
 	 * Now, let's do the common initialisation
 	 */
 	cnf = read_userconfig(getarg(&arglist, 'C') ? getarg(&arglist, 'C')->val : NULL);
-	return funcs[which] (cnf, mode, &arglist);
+	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)
+			perror("chdir(" _PATH_YP ")");
+		else if ((pid = fork()) == -1)
+			perror("fork()");
+		else if (pid == 0) {
+			/* Is make anywhere else? */
+			execlp("/usr/bin/make", "make", NULL);
+			_exit(1);
+		} else {
+			int   i;
+			waitpid(pid, &i, 0);
+			if ((i = WEXITSTATUS(i)) != 0)
+				cmderr(ch, "warning: make exited with status %d\n", i);
+			else
+				pw_log(cnf, mode, which, "NIS maps updated");
+		}
+	}
+	return ch;
 }
 
 static int
@@ -225,6 +254,7 @@ cmdhelp(int mode, int which)
 				"\t-o             duplicate uid ok\n"
 				"\t-L class       user class\n"
 				"\t-h fd          read password on fd\n"
+				"\t-Y             update NIS maps\n"
 				"\t-N             no update\n"
 				"  Setting defaults:\n"
 				"\t-D             set user defaults\n"
@@ -238,10 +268,12 @@ cmdhelp(int mode, int which)
 				"\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-s shell       default shell\n"
+				"\t-y path        set NIS passwd file path\n",
 				"usage: %s userdel [uid|name] [switches]\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: %s usermod [uid|name] [switches]\n"
 				"\t-C config      configuration file\n"
@@ -261,6 +293,7 @@ cmdhelp(int mode, int which)
 				"\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-Y             update NIS maps\n"
 				"\t-N             no update\n",
 				"usage: %s usershow [uid|name] [switches]\n"
 				"\t-n name        login name\n"
@@ -279,10 +312,12 @@ cmdhelp(int mode, int which)
 				"\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: %s groupdel [group|gid] [switches]\n"
 				"\t-n name        group name\n"
-				"\t-g gid         group id\n",
+				"\t-g gid         group id\n"
+				"\t-Y             update NIS maps\n",
 				"usage: %s groupmod [group|gid] [switches]\n"
 				"\t-C config      configuration file\n"
 				"\t-q             quiet operation\n"
@@ -292,6 +327,7 @@ cmdhelp(int mode, int which)
 				"\t-M usr1,usr2   replaces users as group members\n"
 				"\t-m usr1,usr2   add users as group members\n"
 				"\t-l name        new group name\n"
+				"\t-Y             update NIS maps\n"
 				"\t-N             no update\n",
 				"usage: %s groupshow [group|gid] [switches]\n"
 				"\t-n name        group name\n"
diff --git a/pw/pw.conf.5 b/pw/pw.conf.5
index 34daeef..4ef6b18 100644
--- a/pw/pw.conf.5
+++ b/pw/pw.conf.5
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$Id: pw.conf.5,v 1.1.1.3 1996/12/10 23:58:59 joerg Exp $
+.\"	$Id: pw.conf.5,v 1.2 1997/01/05 04:05:22 davidn Exp $
 .\"
 .Dd December 9, 1996
 .Dt PW.CONF 5
@@ -66,6 +66,8 @@ affects passwords generated for new users
 reuse gaps in uid sequences
 .It reusegids
 reuse gaps in gid sequences
+.It nispasswd
+path to the NIS passwd database
 .It skeleton
 where to obtain default home contents
 .It newmail
@@ -146,12 +148,19 @@ previous user or group deletions.
 Note that if the default group is not specified using the
 .Ar defaultgroup
 keyword,
-.Xr pw 8
+Xr pw 8
 will create a new group for the user and attempt to keep the new
 user's uid and gid the same.
 If the new user's uid is currently in use as a group id, then the next
 available group id is chosen instead.
 .Pp
+On NIS servers which maintain a separate passwd database to
+.Pa /etc/master.passwd ,
+this option allows the additional file to be concurrently updated
+as user records are added, modified or removed.
+If blank or set to 'no', no additional database is updated.
+An absolute pathname must be used.
+.Pp
 The
 .Ar skeleton
 keyword nominates a directory from which the contents of a user's
diff --git a/pw/pw.h b/pw/pw.h
index 7c8cff5..37c4807 100644
--- a/pw/pw.h
+++ b/pw/pw.h
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: pw.h,v 1.2 1996/12/19 15:22:42 davidn Exp $
+ *	$Id: pw.h,v 1.3 1996/12/21 15:35:42 davidn Exp $
  */
 
 #include <stdio.h>
@@ -72,6 +72,7 @@ struct userconf
 	int	default_password;	/* Default password for new users? */
 	int	reuse_uids;		/* Reuse uids? */
 	int	reuse_gids;		/* Reuse gids? */
+	char	*nispasswd;		/* Path to NIS version of the passwd file */
 	char	*dotdir;		/* Where to obtain skeleton files */
 	char	*newmail;		/* Mail to send to new accounts */
 	char	*logfile;		/* Where to log changes */
@@ -108,6 +109,10 @@ int delpwent(struct passwd * pwd);
 int chgpwent(char const * login, struct passwd * pwd);
 int fmtpwent(char *buf, struct passwd * pwd);
 
+int addnispwent(const char *path, struct passwd *pwd);
+int delnispwent(const char *path, const char *login);
+int chgnispwent(const char *path, const char *login, struct passwd *pwd);
+
 int addgrent(struct group * grp);
 int delgrent(struct group * grp);
 int chggrent(char const * login, struct group * grp);
diff --git a/pw/pw_conf.c b/pw/pw_conf.c
index 8a0e644..bf93c2a 100644
--- a/pw/pw_conf.c
+++ b/pw/pw_conf.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: pw_conf.c,v 1.1.1.2 1996/12/10 23:59:00 joerg Exp $
+ *	$Id: pw_conf.c,v 1.2 1996/12/21 15:35:42 davidn Exp $
  */
 
 #include <string.h>
@@ -40,6 +40,7 @@ enum {
 	_UC_DEFAULTPWD,
 	_UC_REUSEUID,
 	_UC_REUSEGID,
+	_UC_NISPASSWD,
 	_UC_DOTDIR,
 	_UC_NEWMAIL,
 	_UC_LOGFILE,
@@ -81,6 +82,7 @@ static struct userconf config =
 	0,			/* Default password for new users? (nologin) */
 	0,			/* Reuse uids? */
 	0,			/* Reuse gids? */
+	NULL,			/* NIS version of the passwd file */
 	"/usr/share/skel",	/* Where to obtain skeleton files */
 	NULL,			/* Mail to send to new accounts */
 	"/var/log/userlog",	/* Where to log changes */
@@ -103,6 +105,7 @@ static char const *comments[_UC_FIELDS] =
 	"\n# Password for new users? no=nologin yes=loginid none=blank random=random\n",
 	"\n# Reuse gaps in uid sequence? (yes or no)\n",
 	"\n# Reuse gaps in gid sequence? (yes or no)\n",
+	"\n# Path to the NIS passwd file (blank or 'no' for none)\n",
 	"\n# Obtain default dotfiles from this directory\n",
 	"\n# Mail this file to new user (/etc/newuser.msg or no)\n",
 	"\n# Log add/change/remove information in this file\n",
@@ -127,6 +130,7 @@ static char const *kwds[] =
 	"defaultpasswd",
 	"reuseuids",
 	"reusegids",
+	"nispasswd",
 	"skeleton",
 	"newmail",
 	"logfile",
@@ -266,6 +270,10 @@ read_userconfig(char const * file)
 				case _UC_REUSEGID:
 					config.reuse_gids = boolean_val(q, 0);
 					break;
+				case _UC_NISPASSWD:
+					config.nispasswd = (q == NULL || !boolean_val(q, 1))
+						? NULL : newstr(q);
+					break;
 				case _UC_DOTDIR:
 					config.dotdir = (q == NULL || !boolean_val(q, 1))
 						? NULL : newstr(q);
@@ -384,6 +392,10 @@ write_userconfig(char const * file)
 				case _UC_REUSEGID:
 					val = boolean_str(config.reuse_gids);
 					break;
+				case _UC_NISPASSWD:
+					val = config.nispasswd ? config.nispasswd : "";
+					quote = 0;
+					break;
 				case _UC_DOTDIR:
 					val = config.dotdir ? config.dotdir : boolean_str(0);
 					break;
diff --git a/pw/pw_nis.c b/pw/pw_nis.c
new file mode 100644
index 0000000..781cfdd
--- /dev/null
+++ b/pw/pw_nis.c
@@ -0,0 +1,70 @@
+/*-
+ * 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.
+ *
+ *	$Id$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "pwupd.h"
+#include "pw.h"
+
+static int
+pw_nisupdate(const char * path, struct passwd * pwd, char const * user, int mode)
+{
+	char            pfx[32];
+	char            pwbuf[PWBUFSZ];
+	int             l = sprintf(pfx, "%s:", user);
+
+	/*
+	 * Update the passwd file first
+	 */
+	if (pwd == NULL)
+		*pwbuf = '\0';
+	else
+		fmtpwentry(pwbuf, pwd, PWF_MASTER);
+	return fileupdate(path, 0600, pwbuf, pfx, l, mode) != 0;
+}
+
+int
+addnispwent(const char *path, struct passwd * pwd)
+{
+	return pw_nisupdate(path, pwd, pwd->pw_name, UPD_CREATE);
+}
+
+int
+chgnispwent(const char *path, char const * login, struct passwd * pwd)
+{
+	return pw_nisupdate(path, pwd, login, UPD_REPLACE);
+}
+
+int
+delnispwent(const char *path, const char *login)
+{
+	return pw_nisupdate(path, NULL, login, UPD_DELETE);
+}
diff --git a/pw/pw_user.c b/pw/pw_user.c
index 14b618f..9f95fee 100644
--- a/pw/pw_user.c
+++ b/pw/pw_user.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: pw_user.c,v 1.10 1996/12/30 11:52:34 davidn Exp $
+ *	$Id: pw_user.c,v 1.11 1997/01/03 04:42:18 davidn Exp $
  */
 
 #include <unistd.h>
@@ -87,6 +87,7 @@ static void	rmskey(char const * name);
 int
 pw_user(struct userconf * cnf, int mode, struct cargs * args)
 {
+	int	        r, r1;
 	char           *p = NULL;
 	struct carg    *a_name;
 	struct carg    *a_uid;
@@ -191,6 +192,9 @@ pw_user(struct userconf * cnf, int mode, struct cargs * args)
 	if ((arg = getarg(args, 'e')) != NULL)
 		cnf->expire_days = atoi(arg->val);
 
+	if ((arg = getarg(args, 'y')) != NULL)
+		cnf->nispasswd = arg->val;
+
 	if ((arg = getarg(args, 'p')) != NULL && arg->val)
 		cnf->password_days = atoi(arg->val);
 
@@ -332,6 +336,10 @@ pw_user(struct userconf * cnf, int mode, struct cargs * args)
 
 			if (!delpwent(pwd))
 				cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno));
+
+			if (cnf->nispasswd && *cnf->nispasswd=='/' && !delnispwent(cnf->nispasswd, a_name->val))
+				perror("WARNING: NIS passwd update");
+				
 			editgroups(a_name->val, NULL);
 
 			pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid);
@@ -498,11 +506,25 @@ pw_user(struct userconf * cnf, int mode, struct cargs * args)
 	if (getarg(args, 'N') != NULL)
 		return print_user(pwd, getarg(args, 'P') != NULL);
 
-	if ((mode == M_ADD && !addpwent(pwd)) ||
-	    (mode == M_UPDATE && !chgpwent(a_name->val, pwd))) {
+	r = r1 = 1;
+	if (mode == M_ADD) {
+		r = addpwent(pwd);
+		if (r && cnf->nispasswd && *cnf->nispasswd=='/')
+			r1 = addnispwent(cnf->nispasswd, pwd);
+	} else if (mode == M_UPDATE) {
+		r = chgpwent(a_name->val, pwd);
+		if (r && cnf->nispasswd && *cnf->nispasswd=='/')
+			r1 = chgnispwent(cnf->nispasswd, a_name->val, pwd);
+	}
+
+	if (!r) {
 		perror("password update");
 		return EX_IOERR;
+	} else if (!r1) {
+		perror("WARNING: NIS password update");
+		/* Keep on trucking */
 	}
+
 	/*
 	 * Ok, user is created or changed - now edit group file
 	 */