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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "setup.h"
#ifndef CURL_DISABLE_GOPHER
/* -- WIN32 approved -- */
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#ifdef WIN32
#include <time.h>
#include <io.h>
#else
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <netinet/in.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <netdb.h>
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "progress.h"
#include "strequal.h"
#include "gopher.h"
#include "rawstr.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
/* The last #include file should be: */
#include "memdebug.h"
/*
* Forward declarations.
*/
static CURLcode gopher_do(struct connectdata *conn, bool *done);
/*
* Gopher protocol handler.
* This is also a nice simple template to build off for simple
* connect-command-download protocols.
*/
const struct Curl_handler Curl_handler_gopher = {
"GOPHER", /* scheme */
ZERO_NULL, /* setup_connection */
gopher_do, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
PORT_GOPHER, /* defport */
PROT_GOPHER /* protocol */
};
static CURLcode gopher_do(struct connectdata *conn, bool *done)
{
CURLcode result=CURLE_OK;
struct SessionHandle *data=conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
curl_off_t *bytecount = &data->req.bytecount;
char *path = data->state.path;
char *sel;
*done = TRUE; /* unconditionally */
/* Create selector. Degenerate cases: / and /1 => convert to "" */
if (strlen(path) <= 2)
sel = (char *)"";
else {
char *newp;
int i, j, len;
/* Otherwise, drop / and the first character (i.e., item type) ... */
newp = path;
newp+=2;
/* ... then turn ? into TAB for search servers, Veronica, etc. ... */
j = strlen(newp);
if (j)
for(i=0; i<j; i++)
newp[i] = ((newp[i] == '?') ? '\x09' : newp[i]);
/* ... and finally unescape */
sel = curl_easy_unescape(data, newp, 0, &len);
if (!sel)
return CURLE_OUT_OF_MEMORY;
}
result = Curl_sendf(sockfd, conn, "%s\r\n", sel);
if(result) {
failf(data, "Failed sending Gopher request");
return result;
}
Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount,
-1, NULL); /* no upload */
return CURLE_OK;
}
#endif /*CURL_DISABLE_GOPHER*/
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