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120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/*
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* Whois (RFC 3912) plugin.
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*
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* $Id$
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*/
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#define IN_PLUGIN
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#include "../../echoping.h"
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#include "config.h"
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#endif
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#define MAX_REQUEST 256
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struct addrinfo whois_server;
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char *hostname;
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const char *request = NULL;
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int dump = FALSE;
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int n;
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int sockfd;
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FILE *files = NULL;
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poptContext whois_poptcon;
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void
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whois_usage (const char *msg)
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{
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if (msg)
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{
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printf ("Error: %s\n", msg);
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}
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poptPrintUsage (whois_poptcon, stdout, 0);
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fprintf (stderr, " request\n");
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exit (1);
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}
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char *
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init (const int argc, const char **argv, echoping_options global_options)
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{
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int value;
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char *msg = malloc (256);
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char *rest;
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/* popt variables */
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struct poptOption options[] = {
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{"dump", 'd', POPT_ARG_NONE, &dump, 'd',
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"Dumps the reply from the whois server",
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""},
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POPT_AUTOHELP POPT_TABLEEND
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};
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if (global_options.udp)
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err_quit ("UDP is incompatible with this whois plugin");
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/* Will probably be catched before because /etc/services have no entry for UDP port 43 */
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whois_poptcon = poptGetContext (NULL, argc,
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argv, options, POPT_CONTEXT_POSIXMEHARDER);
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while ((value = poptGetNextOpt (whois_poptcon)) > 0)
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{
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switch ((char) value)
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{
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case 'd':
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break;
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default:
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sprintf (msg, "Wrong option %d (%c)", value, (char) value);
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whois_usage (msg);
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}
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}
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if (value < -1)
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{
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sprintf (msg, "%s: %s",
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poptBadOption (whois_poptcon, POPT_BADOPTION_NOALIAS),
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poptStrerror (value));
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whois_usage (msg);
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}
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request = (char *) poptGetArg (whois_poptcon);
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if (request == NULL)
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whois_usage ("Mandatory request missing");
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rest = (char *) poptGetArg (whois_poptcon);
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if (rest != NULL && strcmp (rest, ""))
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whois_usage ("Extraneous arguments ignored");
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return "nicname";
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}
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void
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start (struct addrinfo *res)
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{
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whois_server = *res;
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}
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int
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execute ()
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{
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int nr = 0;
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char recvline[MAX_LINE + 1];
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char complete_request[MAX_REQUEST];
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if ((sockfd =
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socket (whois_server.ai_family, whois_server.ai_socktype,
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whois_server.ai_protocol)) < 0)
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err_sys ("Can't open socket");
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if (connect (sockfd, whois_server.ai_addr, whois_server.ai_addrlen) < 0)
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err_sys ("Can't connect to server");
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if ((files = fdopen (sockfd, "r")) == NULL)
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err_sys ("Cannot fdopen");
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sprintf (complete_request, "%s\r\n", request);
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n = strlen (complete_request);
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if (writen (sockfd, complete_request, n) != n)
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err_sys ("writen error on socket");
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/* Read from the server */
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while ((nr = readline (files, recvline, MAX_LINE, 0)) > 0)
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if (dump)
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printf ("%s", recvline);
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if (dump)
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printf ("\n");
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close (sockfd);
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return 1;
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}
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void
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terminate ()
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{
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}
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