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/* $OpenBSD: rpc.yppasswdd.c,v 1.21 2009/10/27 23:59:31 deraadt Exp $ */
/*
* 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.
*
* 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/types.h>
#include <sys/wait.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <pwd.h>
#include <util.h>
#include <syslog.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include "yppasswd.h"
static void yppasswddprog_1(struct svc_req *, SVCXPRT *);
void sig_child(int);
int noshell, nogecos, nopw, domake;
char make_arg[1024] = "make";
char *dir;
static void
usage(void)
{
fprintf(stderr,
"usage: rpc.yppasswdd [-nogecos] [-nopw] [-noshell] [-d directory] "
"[-m arg ...]\n");
exit(1);
}
int
main(int argc, char *argv[])
{
SVCXPRT *transp;
int i = 1;
while (i < argc) {
if (argv[i][0] == '-') {
if (strcmp("-noshell", argv[i]) == 0) {
noshell = 1;
} else if (strcmp("-nogecos", argv[i]) == 0) {
nogecos = 1;
} else if (strcmp("-nopw", argv[i]) == 0) {
nopw = 1;
} else if (strcmp("-m", argv[i]) == 0) {
domake = 1;
while (i < argc) {
if (strlcat(make_arg, " ",
sizeof(make_arg)) >=
sizeof(make_arg) ||
strlcat(make_arg, argv[i],
sizeof(make_arg)) >=
sizeof(make_arg)) {
(void) fprintf(stderr,
"-m argument too long.\n");
exit(1);
}
i++;
}
} else if (strcmp("-d", argv[i]) == 0 &&
i < argc + 1) {
i++;
dir = argv[i];
} else
usage();
i++;
} else
usage();
}
(void) daemon(0, 0);
chdir("/etc");
(void) pmap_unset(YPPASSWDPROG, YPPASSWDVERS);
(void) signal(SIGCHLD, sig_child);
transp = svcudp_create(RPC_ANYSOCK);
if (transp == NULL) {
syslog(LOG_ERR, "cannot create udp service");
exit(1);
}
if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswddprog_1,
IPPROTO_UDP)) {
syslog(LOG_ERR, "unable to register YPPASSWDPROG, YPPASSWDVERS, udp");
exit(1);
}
transp = svctcp_create(RPC_ANYSOCK, 0, 0);
if (transp == NULL) {
syslog(LOG_ERR, "cannot create tcp service");
exit(1);
}
if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswddprog_1,
IPPROTO_TCP)) {
syslog(LOG_ERR, "unable to register YPPASSWDPROG, YPPASSWDVERS, tcp");
exit(1);
}
svc_run();
syslog(LOG_ERR, "svc_run returned");
exit(1);
}
static void
yppasswddprog_1(struct svc_req *rqstp, SVCXPRT *transp)
{
union {
yppasswd yppasswdproc_update_1_arg;
} argument;
bool_t (*xdr_argument)(XDR *, yppasswd *);
char *(*local)(yppasswd *, struct svc_req *, SVCXPRT *);
switch (rqstp->rq_proc) {
case NULLPROC:
(void) svc_sendreply(transp, xdr_void, (char *) NULL);
return;
case YPPASSWDPROC_UPDATE:
xdr_argument = xdr_yppasswd;
local = (char *(*)(yppasswd *, struct svc_req *,
SVCXPRT *)) yppasswdproc_update_1_svc;
break;
default:
svcerr_noproc(transp);
return;
}
bzero((char *) &argument, sizeof(argument));
if (!svc_getargs(transp, xdr_argument, (caddr_t) & argument)) {
svcerr_decode(transp);
return;
}
(*local)(&argument.yppasswdproc_update_1_arg, rqstp, transp);
}
/* ARGSUSED */
void
sig_child(int signo)
{
int save_errno = errno;
while (wait3((int *) NULL, WNOHANG, (struct rusage *) NULL) > 0)
;
errno = save_errno;
}
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