NetBSD/usr.sbin/rpc.yppasswdd/yppasswdd_mkpw.c

152 lines
4.0 KiB
C

/* $NetBSD: yppasswdd_mkpw.c,v 1.8 2000/12/08 22:23:14 tron Exp $ */
/*
* Copyright (c) 1996 Jason R. Thorpe <thorpej@NetBSD.ORG>
* All rights reserved.
*
* Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se>
* 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 Mats O Jansson
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: yppasswdd_mkpw.c,v 1.8 2000/12/08 22:23:14 tron Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <pwd.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include <limits.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yppasswd.h>
#include "extern.h"
int handling_request; /* simple mutex */
void
make_passwd(yppasswd *argp, struct svc_req *rqstp, SVCXPRT *transp)
{
struct passwd *pw;
int pfd, tfd;
char mpwd[MAXPATHLEN];
#define REPLY(val) do { \
int res = (val); \
if (!svc_sendreply(transp, xdr_int, (caddr_t)&res)) \
svcerr_systemerr(transp); \
} while (0)
#define RETURN(val) do { \
REPLY((val)); \
handling_request = 0; \
return; \
} while (0)
if (handling_request) {
warnx("already handling request; try again later");
REPLY(1);
return;
}
handling_request = 1;
pw = getpwnam(argp->newpw.pw_name);
if (!pw)
RETURN(1);
if (*pw->pw_passwd &&
strcmp(crypt(argp->oldpass, pw->pw_passwd), pw->pw_passwd) != 0)
RETURN(1);
pw_init();
tfd = pw_lock(0);
if (tfd < 0) {
warnx("the passwd file is busy.");
RETURN(1);
}
(void)strlcpy(mpwd, pw_getprefix(), sizeof(mpwd));
(void)strlcat(mpwd, _PATH_MASTERPASSWD, sizeof(mpwd));
pfd = open(mpwd, O_RDONLY, 0);
if (pfd < 0) {
pw_abort();
warnx("%s", mpwd);
RETURN(1);
}
/*
* Get the new password. Reset passwd change time to zero; when
* classes are implemented, go and get the "offset" value for this
* class and reset the timer.
*/
if (!nopw) {
pw->pw_passwd = argp->newpw.pw_passwd;
pw->pw_change = 0;
}
if (!nogecos)
pw->pw_gecos = argp->newpw.pw_gecos;
if (!noshell)
pw->pw_shell = argp->newpw.pw_shell;
pw_copy(pfd, tfd, pw, NULL);
if (pw_mkdb() < 0) {
warnx("pw_mkdb failed");
pw_abort();
RETURN(1);
}
/* XXX RESTORE SIGNAL STATE? XXX */
/* Notify caller we succeeded. */
REPLY(0);
/* Update the YP maps. */
if (chdir("/var/yp"))
err(EXIT_FAILURE, "/var/yp");
(void) umask(022);
(void) system(make_arg);
handling_request = 0;
}