[apple/system_cmds.git] / chkpasswd.tproj / nis_passwd.c

/*
 * Copyright (c) 1999-2016 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 *
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1998 by Apple Computer, Inc.
 * Portions Copyright (c) 1988 by Sun Microsystems, Inc.
 * Portions Copyright (c) 1988 The Regents of the University of California.
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
 */


/* update a user's password in NIS. This was based on the Sun implementation
 * we used in NEXTSTEP, although I've added some stuff from OpenBSD. And
 * it uses the API to support Rhapsody's proprietry infosystem switch.
 * lukeh
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <pwd.h>
#include <netinet/in.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpc/pmap_clnt.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <rpcsvc/yppasswd.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <errno.h>

#include "passwd.h"

static struct passwd *ypgetpwnam(char *name, char *domain);

int
nis_check_passwd(char *uname, char *domain)
{
	int port;
	char *master;
	struct passwd *pwd;

	if (domain == NULL)
	{
		if (yp_get_default_domain(&domain) != 0)
		{
			(void)fprintf(stderr, "can't get domain\n");
			exit(1);
		}
	}

	if (yp_master(domain, "passwd.byname", &master) != 0)
	{
		(void)fprintf(stderr, "can't get master for passwd file\n");
		exit(1);
	}

	port = getrpcport(master, YPPASSWDPROG, YPPASSWDPROC_UPDATE,
		IPPROTO_UDP);
	if (port == 0)
	{
		(void)fprintf(stderr, "%s is not running yppasswd daemon\n",
			      master);
		exit(1);
	}
	if (port >= IPPORT_RESERVED)
	{
		(void)fprintf(stderr,
		    "yppasswd daemon is not running on privileged port\n");
		exit(1);
	}

	pwd = ypgetpwnam(uname, domain);
	if (pwd == NULL)
	{
		(void)fprintf(stderr, "user %s not found\n", uname);
		exit(1);
	}

	checkpasswd(uname, pwd->pw_passwd);
	return(0);
}

static char *
pwskip(register char *p)
{
	while (*p && *p != ':' && *p != '\n')
		++p;
	if (*p)
		*p++ = 0;
	return (p);
}

static struct passwd *
interpret(struct passwd *pwent, char *line)
{
	register char	*p = line;

	pwent->pw_passwd = "*";
	pwent->pw_uid = 0;
	pwent->pw_gid = 0;
	pwent->pw_gecos = "";
	pwent->pw_dir = "";
	pwent->pw_shell = "";
#ifndef __SLICK__
	pwent->pw_change = 0;
	pwent->pw_expire = 0;
	pwent->pw_class = "";
#endif

	/* line without colon separators is no good, so ignore it */
	if(!strchr(p, ':'))
		return(NULL);

	pwent->pw_name = p;
	p = pwskip(p);
	pwent->pw_passwd = p;
	p = pwskip(p);
	pwent->pw_uid = (uid_t)strtoul(p, NULL, 10);
	p = pwskip(p);
	pwent->pw_gid = (gid_t)strtoul(p, NULL, 10);
	p = pwskip(p);
	pwent->pw_gecos = p;
	p = pwskip(p);
	pwent->pw_dir = p;
	p = pwskip(p);
	pwent->pw_shell = p;
	while (*p && *p != '\n')
		p++;
	*p = '\0';
	return (pwent);
}

static struct passwd *
ypgetpwnam(char *nam, char *domain)
{
	static struct passwd pwent;
	char *val;
	int reason, vallen;
	static char *__yplin = NULL;

	reason = yp_match(domain, "passwd.byname", nam, (int)strlen(nam),
	    &val, &vallen);
	switch(reason) {
	case 0:
		break;
	default:
		return (NULL);
		break;
	}
	val[vallen] = '\0';
	if (__yplin)
		free(__yplin);
	__yplin = (char *)malloc(vallen + 1);
	strcpy(__yplin, val);
	free(val);

	return(interpret(&pwent, __yplin));
}
Commit	Line	Data
1815bff5	1	/*
cf37c299	2	* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
1815bff5 A	3	*
1815bff5 A	4	* @APPLE_LICENSE_HEADER_START@
cf37c299	5	*
2fc1e207 A	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
cf37c299	13	*
1815bff5 A	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2fc1e207 A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
cf37c299	21	*
1815bff5 A	22	* @APPLE_LICENSE_HEADER_END@
1815bff5 A	23	*/
cf37c299	24	/*
1815bff5 A	25	* Copyright (c) 1998 by Apple Computer, Inc.
	26	* Portions Copyright (c) 1988 by Sun Microsystems, Inc.
	27	* Portions Copyright (c) 1988 The Regents of the University of California.
	28	* All rights reserved.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*/
	58
	59
	60	/* update a user's password in NIS. This was based on the Sun implementation
	61	* we used in NEXTSTEP, although I've added some stuff from OpenBSD. And
	62	* it uses the API to support Rhapsody's proprietry infosystem switch.
	63	* lukeh
	64	*/
	65
	66	#include <stdio.h>
	67	#include <stdlib.h>
	68	#include <unistd.h>
	69	#include <string.h>
	70	#include <pwd.h>
	71	#include <netinet/in.h>
1815bff5	72	#include <rpc/rpc.h>
cf37c299 A	73	#include <rpc/xdr.h>
cf37c299 A	74	#include <rpc/pmap_clnt.h>
1815bff5 A	75	#include <rpcsvc/yp_prot.h>
	76	#include <rpcsvc/ypclnt.h>
	77	#include <rpcsvc/yppasswd.h>
	78	#include <netdb.h>
	79	#include <sys/socket.h>
	80	#include <sys/file.h>
	81	#include <errno.h>
	82
cf37c299	83	#include "passwd.h"
1815bff5 A	84
	85	static struct passwd ypgetpwnam(char name, char *domain);
	86
cf37c299 A	87	int
	88	nis_check_passwd(char uname, char domain)
	89	{
1815bff5 A	90	int port;
	91	char *master;
	92	struct passwd *pwd;
	93
	94	if (domain == NULL)
	95	{
	96	if (yp_get_default_domain(&domain) != 0)
	97	{
	98	(void)fprintf(stderr, "can't get domain\n");
	99	exit(1);
	100	}
	101	}
cf37c299	102
1815bff5 A	103	if (yp_master(domain, "passwd.byname", &master) != 0)
	104	{
	105	(void)fprintf(stderr, "can't get master for passwd file\n");
	106	exit(1);
	107	}
cf37c299	108
1815bff5 A	109	port = getrpcport(master, YPPASSWDPROG, YPPASSWDPROC_UPDATE,
	110	IPPROTO_UDP);
	111	if (port == 0)
	112	{
	113	(void)fprintf(stderr, "%s is not running yppasswd daemon\n",
	114	master);
	115	exit(1);
	116	}
	117	if (port >= IPPORT_RESERVED)
	118	{
	119	(void)fprintf(stderr,
	120	"yppasswd daemon is not running on privileged port\n");
	121	exit(1);
	122	}
	123
	124	pwd = ypgetpwnam(uname, domain);
	125	if (pwd == NULL)
	126	{
	127	(void)fprintf(stderr, "user %s not found\n", uname);
	128	exit(1);
	129	}
cf37c299	130
1815bff5 A	131	checkpasswd(uname, pwd->pw_passwd);
	132	return(0);
	133	}
cf37c299	134
1815bff5 A	135	static char *
	136	pwskip(register char *p)
	137	{
	138	while (p && p != ':' && *p != '\n')
	139	++p;
	140	if (*p)
	141	*p++ = 0;
	142	return (p);
	143	}
	144
cf37c299	145	static struct passwd *
1815bff5 A	146	interpret(struct passwd pwent, char line)
	147	{
	148	register char *p = line;
	149
	150	pwent->pw_passwd = "*";
	151	pwent->pw_uid = 0;
	152	pwent->pw_gid = 0;
	153	pwent->pw_gecos = "";
	154	pwent->pw_dir = "";
	155	pwent->pw_shell = "";
	156	#ifndef __SLICK__
	157	pwent->pw_change = 0;
	158	pwent->pw_expire = 0;
	159	pwent->pw_class = "";
	160	#endif
	161
	162	/* line without colon separators is no good, so ignore it */
	163	if(!strchr(p, ':'))
	164	return(NULL);
	165
	166	pwent->pw_name = p;
	167	p = pwskip(p);
	168	pwent->pw_passwd = p;
	169	p = pwskip(p);
	170	pwent->pw_uid = (uid_t)strtoul(p, NULL, 10);
	171	p = pwskip(p);
	172	pwent->pw_gid = (gid_t)strtoul(p, NULL, 10);
	173	p = pwskip(p);
	174	pwent->pw_gecos = p;
	175	p = pwskip(p);
	176	pwent->pw_dir = p;
	177	p = pwskip(p);
	178	pwent->pw_shell = p;
	179	while (p && p != '\n')
	180	p++;
	181	*p = '\0';
	182	return (pwent);
	183	}
	184
1815bff5 A	185	static struct passwd *
	186	ypgetpwnam(char nam, char domain)
	187	{
	188	static struct passwd pwent;
	189	char *val;
	190	int reason, vallen;
	191	static char *__yplin = NULL;
	192
cf37c299	193	reason = yp_match(domain, "passwd.byname", nam, (int)strlen(nam),
1815bff5 A	194	&val, &vallen);
	195	switch(reason) {
	196	case 0:
	197	break;
	198	default:
	199	return (NULL);
	200	break;
	201	}
	202	val[vallen] = '\0';
	203	if (__yplin)
	204	free(__yplin);
	205	__yplin = (char *)malloc(vallen + 1);
	206	strcpy(__yplin, val);
	207	free(val);
	208
	209	return(interpret(&pwent, __yplin));
	210	}