* Copyright (c) 1983 The Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
static char sccsid
[] = "@(#)gettable.c 5.6 (Berkeley) 3/2/91";
#define OUTFILE "hosts.txt" /* default output file */
#define VERFILE "hosts.ver" /* default version file */
#define QUERY "ALL\r\n" /* query to hostname server */
#define VERSION "VERSION\r\n" /* get version number */
#define equaln(s1, s2, n) (!strncmp(s1, s2, n))
register FILE *sfi
, *sfo
, *hf
;
register struct hostent
*hp
;
fprintf(stderr
, "unknown option %s ignored\n", *argv
);
version
++, outfile
= VERFILE
;
if (argc
< 1 || argc
> 2) {
fprintf(stderr
, "usage: gettable [-v] host [ file ]\n");
sp
= getservbyname("hostnames", "tcp");
fprintf(stderr
, "gettable: hostnames/tcp: unknown service\n");
hp
= gethostbyname(host
);
fprintf(stderr
, "gettable: %s: ", host
);
sin
.sin_family
= hp
->h_addrtype
;
s
= socket(hp
->h_addrtype
, SOCK_STREAM
, 0);
perror("gettable: socket");
if (bind(s
, (struct sockaddr
*)&sin
, sizeof (sin
)) < 0) {
perror("gettable: bind");
bcopy(hp
->h_addr
, &sin
.sin_addr
, hp
->h_length
);
sin
.sin_port
= sp
->s_port
;
if (connect(s
, (struct sockaddr
*)&sin
, sizeof (sin
)) < 0) {
perror("gettable: connect");
fprintf(stderr
, "Connection to %s opened.\n", host
);
if (sfi
== NULL
|| sfo
== NULL
) {
perror("gettable: fdopen");
hf
= fopen(outfile
, "w");
fprintf(stderr
, "gettable: "); perror(outfile
);
fprintf(sfo
, version
? VERSION
: QUERY
);
while (fgets(buf
, sizeof(buf
), sfi
) != NULL
) {
if (!version
&& equaln(buf
, "BEGIN", 5)) {
if (beginseen
|| endseen
) {
"gettable: BEGIN sequence error\n");
if (!version
&& equaln(buf
, "END", 3)) {
if (!beginseen
|| endseen
) {
"gettable: END sequence error\n");
if (equaln(buf
, "ERR", 3)) {
"gettable: hostname service error: %s", buf
);
fprintf(hf
, "%s\n", buf
);
fprintf(stderr
, "gettable: no BEGIN seen\n");
fprintf(stderr
, "gettable: no END seen\n");
fprintf(stderr
, "Host table received.\n");
fprintf(stderr
, "Version number received.\n");
fprintf(stderr
, "Connection to %s closed\n", host
);