reactos/base/applications/network/whois/whois.c

186 lines
4.8 KiB
C

/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. 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 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
* SUCH DAMAGE.
*
* 8/1/97 - Ted Felix <tfelix@fred.net>
* Ported to Win32 from 4.4-BSDLITE2 from wcarchive.
* Added WSAStartup()/WSACleanup() and switched from the
* more convenient fdopen()/fprintf() to send()/recv().
*/
//#include <sys/types.h>
#define WIN32_NO_STATUS
#include <windef.h>
#define _INC_WINDOWS
#include <winsock2.h>
/* #include <sys/socket.h> */
/* #include <netinet/in.h> */
/* #include <netdb.h> */
#include <stdio.h>
#include <stdlib.h>
/* #include <various.h> */
/* #include <getopt.h> */
/* #include <io.h> */
static char NICHOST[] = "whois.internic.net";
char *host = NULL;
int optset = 0;
static void usage();
static void cleanup(int iExitCode);
void getwhoisserver(int argc, char **argv)
{
int i = 1;
while(i < argc)
{
if (!strcmp(argv[i], "-h"))
{
if (i + 2 < argc)
{
host = argv[i +1];
optset = i + 1;
}
else
{
optset = argc;
}
return;
}
i++;
}
host = NICHOST;
optset = 1;
}
int main(int argc, char **argv)
{
char ch;
struct sockaddr_in sin;
struct hostent *hp;
struct servent *sp;
SOCKET s;
WORD wVersionRequested;
WSADATA wsaData;
int err;
getwhoisserver(argc, argv);
argc -= optset;
argv += optset;
if (!host || !argc)
usage();
/* Start winsock */
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 )
{
/* Tell the user that we couldn't find a usable */
/* WinSock DLL. */
perror("whois: WSAStartup failed");
cleanup(1);
}
hp = gethostbyname(host);
if (hp == NULL) {
(void)fprintf(stderr, "whois: %s: ", host);
cleanup(1);
}
host = hp->h_name;
s = socket(hp->h_addrtype, SOCK_STREAM, 0);
if (s == INVALID_SOCKET) {
perror("whois: socket");
cleanup(1);
}
memset(/*(caddr_t)*/&sin, 0, sizeof(sin));
sin.sin_family = hp->h_addrtype;
if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
perror("whois: bind");
cleanup(1);
}
memcpy((char *)&sin.sin_addr, hp->h_addr, hp->h_length);
sp = getservbyname("nicname", "tcp");
if (sp == NULL) {
(void)fprintf(stderr, "whois: nicname/tcp: unknown service\n");
cleanup(1);
}
sin.sin_port = sp->s_port;
/* have network connection; identify the host connected with */
(void)printf("[%s]\n", hp->h_name);
if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
fprintf(stderr, "whois: connect error = %d\n", WSAGetLastError());
cleanup(1);
}
/* WinSock doesn't allow using a socket as a file descriptor. */
/* Have to use send() and recv(). whois will drop connection. */
/* For each request */
while (argc-- > 1)
{
/* Send the request */
send(s, *argv, strlen(*argv), 0);
send(s, " ", 1, 0);
argv++;
}
/* Send the last request */
send(s, *argv, strlen(*argv), 0);
send(s, "\r\n", 2, 0);
/* Receive anything and print it */
while (recv(s, &ch, 1, 0) == 1)
putchar(ch);
cleanup(0);
return 0;
}
static void usage()
{
(void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
cleanup(1);
}
static void cleanup(int iExitCode)
{
WSACleanup();
exit(iExitCode);
}