reactos/base/applications/network/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 //#include <sys/types.h>
  40 #define WIN32_NO_STATUS
  41 #include <windef.h>
  42 #define _INC_WINDOWS
  43 #include <winsock2.h>
  44 /* #include <sys/socket.h> */
  45 /* #include <netinet/in.h> */
  46 /* #include <netdb.h> */
  47 #include <stdio.h>
  48 #include <stdlib.h>
  49
  50 /* #include <various.h> */
  51 /* #include <getopt.h> */
  52 /* #include <io.h> */
  53
  54 static char NICHOST[] = "whois.internic.net";
  55 char *host = NULL;
  56 int optset = 0;
  57 static void usage();
  58 static void cleanup(int iExitCode);
  59
  60 void getwhoisserver(int argc, char **argv)
  61 {
  62         int i = 1;
  63
  64     while(i < argc)
  65         {
  66                 if (!strcmp(argv[i], "-h"))
  67                 {
  68                         if (i + 2 < argc)
  69                         {
  70                                 host = argv[i +1];
  71                                 optset = i + 1;
  72                         }
  73                         else
  74                         {
  75                                 optset = argc;
  76                         }
  77                         return;
  78                 }
  79                 i++;
  80         }
  81         host = NICHOST;
  82         optset = 1;
  83 }
  84
  85 int main(int argc, char **argv)
  86 {
  87         char ch;
  88         struct sockaddr_in sin;
  89         struct hostent *hp;
  90         struct servent *sp;
  91         SOCKET s;
  92
  93         WORD wVersionRequested;
  94         WSADATA wsaData;
  95         int err;
  96
  97         getwhoisserver(argc, argv);
  98         argc -= optset;
  99         argv += optset;
 100
 101     if (!host || !argc)
 102                 usage();
 103
 104         /* Start winsock */
 105         wVersionRequested = MAKEWORD( 1, 1 );
 106         err = WSAStartup( wVersionRequested, &wsaData );
 107         if ( err != 0 )
 108         {
 109                 /* Tell the user that we couldn't find a usable */
 110                 /* WinSock DLL.                                 */
 111                 perror("whois: WSAStartup failed");
 112                 cleanup(1);
 113         }
 114
 115         hp = gethostbyname(host);
 116         if (hp == NULL) {
 117                 (void)fprintf(stderr, "whois: %s: ", host);
 118                 cleanup(1);
 119         }
 120         host = hp->h_name;
 121
 122         s = socket(hp->h_addrtype, SOCK_STREAM, 0);
 123         if (s == INVALID_SOCKET) {
 124                 perror("whois: socket");
 125                 cleanup(1);
 126         }
 127
 128         memset(/*(caddr_t)*/&sin, 0, sizeof(sin));
 129         sin.sin_family = hp->h_addrtype;
 130         if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
 131                 perror("whois: bind");
 132                 cleanup(1);
 133         }
 134
 135         memcpy((char *)&sin.sin_addr, hp->h_addr, hp->h_length);
 136         sp = getservbyname("nicname", "tcp");
 137         if (sp == NULL) {
 138                 (void)fprintf(stderr, "whois: nicname/tcp: unknown service\n");
 139                 cleanup(1);
 140         }
 141
 142         sin.sin_port = sp->s_port;
 143
 144         /* have network connection; identify the host connected with */
 145         (void)printf("[%s]\n", hp->h_name);
 146
 147         if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
 148                 fprintf(stderr, "whois: connect error = %d\n", WSAGetLastError());
 149                 cleanup(1);
 150         }
 151
 152         /* WinSock doesn't allow using a socket as a file descriptor. */
 153         /* Have to use send() and recv().  whois will drop connection. */
 154
 155         /* For each request */
 156         while (argc-- > 1)
 157         {
 158                 /* Send the request */
 159                 send(s, *argv, strlen(*argv), 0);
 160                 send(s, " ", 1, 0);
 161                 argv++;
 162         }
 163         /* Send the last request */
 164         send(s, *argv, strlen(*argv), 0);
 165         send(s, "\r\n", 2, 0);
 166
 167         /* Receive anything and print it */
 168         while (recv(s, &ch, 1, 0) == 1)
 169                 putchar(ch);
 170
 171         cleanup(0);
 172         return 0;
 173 }
 174
 175 static void usage()
 176 {
 177         (void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
 178         cleanup(1);
 179 }
 180
 181 static void cleanup(int iExitCode)
 182 {
 183         WSACleanup();
 184         exit(iExitCode);
 185 }