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/* $OpenBSD: ypwhich.c,v 1.4 1996/06/05 23:56:00 deraadt Exp $
/* $NetBSD: ypwhich.c,v 1.6 1996/05/13 02:43:48 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
* 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 Theo de Raadt.
* 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.
*/
#ifndef LINT
static char rcsid[] = "$Id: ypwhich.c,v 1.4 1996/06/05 23:56:00 deraadt Exp $";
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
struct ypalias {
char *alias, *name;
} ypaliases[] = {
{ "passwd", "passwd.byname" },
{ "group", "group.byname" },
{ "networks", "networks.byaddr" },
{ "hosts", "hosts.byaddr" },
{ "protocols", "protocols.bynumber" },
{ "services", "services.byname" },
{ "aliases", "mail.aliases" },
{ "ethers", "ethers.byname" },
};
usage()
{
fprintf(stderr, "Usage:\n");
fprintf(stderr, "\typwhich [-d domain] [[-t] -m [mname] | host]\n");
fprintf(stderr, "\typwhich -x\n");
exit(1);
}
/*
* Like yp_bind except can query a specific host
*/
bind_host(dom, sin)
char *dom;
struct sockaddr_in *sin;
{
struct hostent *hent = NULL;
struct ypbind_resp ypbr;
struct dom_binding *ysd;
struct timeval tv;
CLIENT *client;
int sock, r;
u_long ss_addr;
sock = RPC_ANYSOCK;
tv.tv_sec = 15;
tv.tv_usec = 0;
client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
if(client==NULL) {
fprintf(stderr, "can't clntudp_create: %s\n",
yperr_string(YPERR_YPBIND));
return YPERR_YPBIND;
}
tv.tv_sec = 5;
tv.tv_usec = 0;
r = clnt_call(client, YPBINDPROC_DOMAIN,
xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv);
if( r != RPC_SUCCESS) {
fprintf(stderr, "can't clnt_call: %s\n",
yperr_string(YPERR_YPBIND));
clnt_destroy(client);
return YPERR_YPBIND;
} else {
if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
fprintf(stderr, "can't yp_bind: Reason: %s\n",
yperr_string(ypbr.ypbind_status));
clnt_destroy(client);
return r;
}
}
clnt_destroy(client);
bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
&ss_addr, sizeof (ss_addr));
/*printf("%08x\n", ss_addr);*/
hent = gethostbyaddr((char *)&ss_addr, sizeof(ss_addr), AF_INET);
if (hent)
printf("%s\n", hent->h_name);
else
printf("%s\n", inet_ntoa(ss_addr));
return 0;
}
int
main(argc, argv)
char **argv;
{
char *domain, *master, *map;
struct ypmaplist *ypml, *y;
struct hostent *hent;
struct sockaddr_in sin;
int notrans, mode, getmap;
int c, r, i;
yp_get_default_domain(&domain);
map = NULL;
getmap = notrans = mode = 0;
while( (c=getopt(argc, argv, "xd:mt")) != -1)
switch(c) {
case 'x':
for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
printf("Use \"%s\" for \"%s\"\n",
ypaliases[i].alias,
ypaliases[i].name);
exit(0);
case 'd':
domain = optarg;
break;
case 't':
notrans++;
break;
case 'm':
mode++;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if(mode==0) {
switch(argc) {
case 0:
bzero(&sin, sizeof sin);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if(bind_host(domain, &sin))
exit(1);
break;
case 1:
bzero(&sin, sizeof sin);
sin.sin_family = AF_INET;
if (inet_aton(argv[0], &sin.sin_addr) == 0) {
hent = gethostbyname(argv[0]);
if(!hent) {
fprintf(stderr, "ypwhich: host %s unknown\n",
argv[0]);
exit(1);
}
bcopy((char *)hent->h_addr,
(char *)&sin.sin_addr, sizeof sin.sin_addr);
}
if(bind_host(domain, &sin))
exit(1);
break;
default:
usage();
}
exit(0);
}
if( argc > 1)
usage();
if(argv[0]) {
map = argv[0];
for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
if( strcmp(map, ypaliases[i].alias) == 0)
map = ypaliases[i].name;
r = yp_master(domain, map, &master);
switch(r) {
case 0:
printf("%s\n", master);
free(master);
break;
case YPERR_YPBIND:
fprintf(stderr, "ypwhich: not running ypbind\n");
exit(1);
default:
fprintf(stderr, "Can't find master for map %s. Reason: %s\n",
map, yperr_string(r));
exit(1);
}
exit(0);
}
ypml = NULL;
r = yp_maplist(domain, &ypml);
r = 0;
switch(r) {
case 0:
for(y = ypml; y; ) {
ypml = y;
r = yp_master(domain, ypml->map, &master);
switch(r) {
case 0:
printf("%s %s\n", ypml->map, master);
free(master);
break;
default:
fprintf(stderr,
"YP: can't find the master of %s: Reason: %s\n",
ypml->map, yperr_string(r));
break;
}
y = ypml->next;
free(ypml);
}
break;
case YPERR_YPBIND:
fprintf(stderr, "ypwhich: not running ypbind\n");
exit(1);
default:
fprintf(stderr, "Can't get map list for domain %s. Reason: %s\n",
domain, yperr_string(r));
exit(1);
}
exit(0);
}
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