mirror of
https://github.com/moparisthebest/curl
synced 2024-11-17 23:15:08 -05:00
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2019, 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 https://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.
|
|
*
|
|
***************************************************************************/
|
|
/* <DESC>
|
|
* This is a simple example showing how a program on a non-ASCII platform
|
|
* would invoke callbacks to do its own codeset conversions instead of
|
|
* using the built-in iconv functions in libcurl.
|
|
* </DESC>
|
|
*/
|
|
/*
|
|
|
|
The IBM-1047 EBCDIC codeset is used for this example but the code
|
|
would be similar for other non-ASCII codesets.
|
|
|
|
Three callback functions are created below:
|
|
my_conv_from_ascii_to_ebcdic,
|
|
my_conv_from_ebcdic_to_ascii, and
|
|
my_conv_from_utf8_to_ebcdic
|
|
|
|
The "platform_xxx" calls represent platform-specific conversion routines.
|
|
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <curl/curl.h>
|
|
|
|
static CURLcode my_conv_from_ascii_to_ebcdic(char *buffer, size_t length)
|
|
{
|
|
char *tempptrin, *tempptrout;
|
|
size_t bytes = length;
|
|
int rc;
|
|
tempptrin = tempptrout = buffer;
|
|
rc = platform_a2e(&tempptrin, &bytes, &tempptrout, &bytes);
|
|
if(rc == PLATFORM_CONV_OK) {
|
|
return CURLE_OK;
|
|
}
|
|
else {
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
|
|
static CURLcode my_conv_from_ebcdic_to_ascii(char *buffer, size_t length)
|
|
{
|
|
char *tempptrin, *tempptrout;
|
|
size_t bytes = length;
|
|
int rc;
|
|
tempptrin = tempptrout = buffer;
|
|
rc = platform_e2a(&tempptrin, &bytes, &tempptrout, &bytes);
|
|
if(rc == PLATFORM_CONV_OK) {
|
|
return CURLE_OK;
|
|
}
|
|
else {
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
|
|
static CURLcode my_conv_from_utf8_to_ebcdic(char *buffer, size_t length)
|
|
{
|
|
char *tempptrin, *tempptrout;
|
|
size_t bytes = length;
|
|
int rc;
|
|
tempptrin = tempptrout = buffer;
|
|
rc = platform_u2e(&tempptrin, &bytes, &tempptrout, &bytes);
|
|
if(rc == PLATFORM_CONV_OK) {
|
|
return CURLE_OK;
|
|
}
|
|
else {
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
CURL *curl;
|
|
|
|
curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
|
|
|
/* use platform-specific functions for codeset conversions */
|
|
curl_easy_setopt(curl, CURLOPT_CONV_FROM_NETWORK_FUNCTION,
|
|
my_conv_from_ascii_to_ebcdic);
|
|
curl_easy_setopt(curl, CURLOPT_CONV_TO_NETWORK_FUNCTION,
|
|
my_conv_from_ebcdic_to_ascii);
|
|
curl_easy_setopt(curl, CURLOPT_CONV_FROM_UTF8_FUNCTION,
|
|
my_conv_from_utf8_to_ebcdic);
|
|
|
|
curl_easy_perform(curl);
|
|
|
|
/* always cleanup */
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
return 0;
|
|
}
|