rosapps/net/whois/whois.c

   1 /*
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * 8/1/97 - Ted Felix <tfelix@fred.net>
  34  *          Ported to Win32 from 4.4-BSDLITE2 from wcarchive.
  35  *          Added WSAStartup()/WSACleanup() and switched from the
  36  *          more convenient fdopen()/fprintf() to send()/recv().
  37  */
  38
  39 #ifndef lint
  40 static char copyright[] =
  41 "@(#) Copyright (c) 1980, 1993\n\
  42         The Regents of the University of California.  All rights reserved.\n";
  43 #endif /* not lint */
  44
  45 #ifndef lint
  46 static char sccsid[] = "@(#)whois.c     8.1 (Berkeley) 6/6/93";
  47 #endif /* not lint */
  48
  49 #include <sys/types.h>
  50 /*#include <sys/socket.h>*/
  51 #include <winsock2.h>
  52 /*#include <netinet/in.h>*/
  53 /*#include <netdb.h>*/
  54 #include <stdio.h>
  55
  56 //#include <various.h>
  57 #include <getopt.h>
  58 #include <io.h>
  59
  60 #define NICHOST "whois.internic.net"
  61
  62 void usage();
  63 void leave(int iExitCode);
  64
  65 void main(int argc, char **argv)
  66 {
  67         extern char *optarg;
  68         extern int optind;
  69         char ch;
  70         struct sockaddr_in sin;
  71         struct hostent *hp;
  72         struct servent *sp;
  73         int s;
  74         char *host;
  75         WORD wVersionRequested;
  76         WSADATA wsaData;
  77         int err;
  78
  79         host = NICHOST;
  80         while ((ch = (char)getopt(argc, argv, "h:")) != EOF)
  81                 switch((char)ch) {
  82                 case 'h':
  83                         host = optarg;
  84                         break;
  85                 case '?':
  86                 default:
  87                         usage();
  88                 }
  89         argc -= optind;
  90         argv += optind;
  91
  92         if (!argc)
  93                 usage();
  94
  95         /* Start winsock */
  96         wVersionRequested = MAKEWORD( 1, 1 );
  97         err = WSAStartup( wVersionRequested, &wsaData );
  98         if ( err != 0 )
  99         {
 100                 /* Tell the user that we couldn't find a usable */
 101                 /* WinSock DLL.                                  */
 102                 fprintf(stderr, "WSAStartup failed\n");
 103                 return;
 104         }
 105
 106         hp = gethostbyname(host);
 107         if (hp == NULL) {
 108                 (void)fprintf(stderr, "whois: %s: ", host);
 109                 leave(1);
 110         }
 111         host = hp->h_name;
 112
 113         s = socket(hp->h_addrtype, SOCK_STREAM, 0);
 114         if (s < 0) {
 115                 perror("whois: socket");
 116                 leave(1);
 117         }
 118
 119         bzero(/*(caddr_t)*/&sin, sizeof (sin));
 120         sin.sin_family = hp->h_addrtype;
 121         if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
 122                 perror("whois: bind");
 123                 leave(1);
 124         }
 125
 126         bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length);
 127         sp = getservbyname("whois", "tcp");
 128         if (sp == NULL) {
 129                 (void)fprintf(stderr, "whois: whois/tcp: unknown service\n");
 130                 leave(1);
 131         }
 132
 133         sin.sin_port = sp->s_port;
 134
 135         /* have network connection; identify the host connected with */
 136         (void)printf("[%s]\n", hp->h_name);
 137
 138         if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
 139                 fprintf(stderr, "whois: connect error = %d\n", WSAGetLastError());
 140                 leave(1);
 141         }
 142
 143         /* WinSock doesn't allow using a socket as a file descriptor. */
 144         /* Have to use send() and recv().  whois will drop connection. */
 145
 146         /* For each request */
 147         while (argc-- > 1)
 148         {
 149                 /* Send the request */
 150                 send(s, *argv, strlen(*argv), 0);
 151                 send(s, " ", 1, 0);
 152                 argv++;
 153         }
 154         /* Send the last request */
 155         send(s, *argv, strlen(*argv), 0);
 156         send(s, "\r\n", 2, 0);
 157
 158         /* Receive anything and print it */
 159         while (recv(s, &ch, 1, 0) == 1)
 160                 putchar(ch);
 161
 162         leave(0);
 163 }
 164
 165 void usage()
 166 {
 167         (void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
 168         leave(1);
 169 }
 170
 171 void leave(int iExitCode)
 172 {
 173         WSACleanup();
 174         exit(iExitCode);
 175 }