255 lines
6.4 KiB
C
255 lines
6.4 KiB
C
/*
|
|
* Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
|
|
* 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. 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>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <rpcsvc/ypclnt.h>
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#include <arpa/inet.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <rpc/rpc.h>
|
|
#include <rpc/xdr.h>
|
|
#include <rpcsvc/yp.h>
|
|
struct dom_binding{};
|
|
|
|
#define ERR_USAGE 1 /* bad arguments - display 'usage' message */
|
|
#define ERR_NOSUCHHOST 2 /* no such host */
|
|
#define ERR_NOBINDING 3 /* error from ypbind -- domain not bound */
|
|
#define ERR_NOYPBIND 4 /* ypbind not running */
|
|
#define ERR_NOMASTER 5 /* could not find master server */
|
|
|
|
extern bool_t xdr_domainname();
|
|
|
|
struct ypalias {
|
|
const char *alias, *name;
|
|
} ypaliases[] = {
|
|
{ "passwd", "passwd.byname" },
|
|
{ "master.passwd", "master.passwd.byname" },
|
|
{ "group", "group.byname" },
|
|
{ "networks", "networks.byaddr" },
|
|
{ "hosts", "hosts.byaddr" },
|
|
{ "protocols", "protocols.bynumber" },
|
|
{ "services", "services.byname" },
|
|
{ "aliases", "mail.aliases" },
|
|
{ "ethers", "ethers.byname" },
|
|
};
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr, "%s\n%s\n",
|
|
"usage: ypwhich [-d domain] [[-t] -m [mname] | host]",
|
|
" ypwhich -x");
|
|
exit(ERR_USAGE);
|
|
}
|
|
|
|
|
|
/*
|
|
* Like yp_bind except can query a specific host
|
|
*/
|
|
static int
|
|
bind_host(char *dom, struct sockaddr_in *lsin)
|
|
{
|
|
struct hostent *hent = NULL;
|
|
struct ypbind_resp ypbr;
|
|
struct timeval tv;
|
|
CLIENT *client;
|
|
int sock, r;
|
|
struct in_addr ss_addr;
|
|
|
|
sock = RPC_ANYSOCK;
|
|
tv.tv_sec = 15;
|
|
tv.tv_usec = 0;
|
|
client = clntudp_create(lsin, YPBINDPROG, YPBINDVERS, tv, &sock);
|
|
if (client == NULL) {
|
|
warnx("can't clntudp_create: %s", 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) {
|
|
warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND));
|
|
clnt_destroy(client);
|
|
return (YPERR_YPBIND);
|
|
} else {
|
|
if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
|
|
warnx("can't yp_bind: reason: %s",
|
|
ypbinderr_string(ypbr.ypbind_resp_u.ypbind_error));
|
|
clnt_destroy(client);
|
|
return (r);
|
|
}
|
|
}
|
|
clnt_destroy(client);
|
|
|
|
ss_addr = *(struct in_addr *)ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_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(int argc, char *argv[])
|
|
{
|
|
char *domnam = NULL, *master;
|
|
const char *map = NULL;
|
|
struct ypmaplist *ypml, *y;
|
|
struct hostent *hent;
|
|
struct sockaddr_in lsin;
|
|
int notrans, mode, getmap;
|
|
int c, r;
|
|
u_int i;
|
|
|
|
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("\"%s\" is an alias for \"%s\"\n",
|
|
ypaliases[i].alias,
|
|
ypaliases[i].name);
|
|
exit(0);
|
|
case 'd':
|
|
domnam = optarg;
|
|
break;
|
|
case 't':
|
|
notrans++;
|
|
break;
|
|
case 'm':
|
|
mode++;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
if (!domnam)
|
|
yp_get_default_domain(&domnam);
|
|
|
|
if (mode == 0) {
|
|
switch (argc-optind) {
|
|
case 0:
|
|
bzero(&lsin, sizeof lsin);
|
|
lsin.sin_family = AF_INET;
|
|
lsin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
|
|
if (bind_host(domnam, &lsin))
|
|
exit(ERR_NOBINDING);
|
|
break;
|
|
case 1:
|
|
bzero(&lsin, sizeof lsin);
|
|
lsin.sin_family = AF_INET;
|
|
if ((lsin.sin_addr.s_addr = inet_addr(argv[optind])) == INADDR_NONE) {
|
|
hent = gethostbyname(argv[optind]);
|
|
if (!hent)
|
|
errx(ERR_NOSUCHHOST, "host %s unknown", argv[optind]);
|
|
bcopy((char *)hent->h_addr_list[0],
|
|
(char *)&lsin.sin_addr, sizeof lsin.sin_addr);
|
|
}
|
|
if (bind_host(domnam, &lsin))
|
|
exit(ERR_NOBINDING);
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
if (argc-optind > 1)
|
|
usage();
|
|
|
|
if (argv[optind]) {
|
|
map = argv[optind];
|
|
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(domnam, map, &master);
|
|
switch (r) {
|
|
case 0:
|
|
printf("%s\n", master);
|
|
free(master);
|
|
break;
|
|
case YPERR_YPBIND:
|
|
errx(ERR_NOYPBIND, "not running ypbind");
|
|
default:
|
|
errx(ERR_NOMASTER, "can't find master for map %s. reason: %s",
|
|
map, yperr_string(r));
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
ypml = NULL;
|
|
r = yp_maplist(domnam, &ypml);
|
|
switch (r) {
|
|
case 0:
|
|
for (y = ypml; y;) {
|
|
ypml = y;
|
|
r = yp_master(domnam, ypml->map, &master);
|
|
switch (r) {
|
|
case 0:
|
|
printf("%s %s\n", ypml->map, master);
|
|
free(master);
|
|
break;
|
|
default:
|
|
warnx("can't find the master of %s: reason: %s",
|
|
ypml->map, yperr_string(r));
|
|
break;
|
|
}
|
|
y = ypml->next;
|
|
free(ypml);
|
|
}
|
|
break;
|
|
case YPERR_YPBIND:
|
|
errx(ERR_NOYPBIND, "not running ypbind");
|
|
default:
|
|
errx(ERR_NOMASTER, "can't get map list for domain %s. reason: %s",
|
|
domnam, yperr_string(r));
|
|
}
|
|
exit(0);
|
|
}
|