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113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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/* <DESC>
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* This is a simple example showing how a program on a non-ASCII platform
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* would invoke callbacks to do its own codeset conversions instead of
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* using the built-in iconv functions in libcurl.
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* </DESC>
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*/
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/*
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The IBM-1047 EBCDIC codeset is used for this example but the code
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would be similar for other non-ASCII codesets.
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Three callback functions are created below:
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my_conv_from_ascii_to_ebcdic,
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my_conv_from_ebcdic_to_ascii, and
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my_conv_from_utf8_to_ebcdic
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The "platform_xxx" calls represent platform-specific conversion routines.
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*/
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#include <stdio.h>
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#include <curl/curl.h>
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static CURLcode my_conv_from_ascii_to_ebcdic(char *buffer, size_t length)
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{
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char *tempptrin, *tempptrout;
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size_t bytes = length;
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int rc;
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tempptrin = tempptrout = buffer;
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rc = platform_a2e(&tempptrin, &bytes, &tempptrout, &bytes);
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if(rc == PLATFORM_CONV_OK) {
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return CURLE_OK;
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}
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else {
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return CURLE_CONV_FAILED;
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}
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}
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static CURLcode my_conv_from_ebcdic_to_ascii(char *buffer, size_t length)
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{
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char *tempptrin, *tempptrout;
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size_t bytes = length;
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int rc;
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tempptrin = tempptrout = buffer;
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rc = platform_e2a(&tempptrin, &bytes, &tempptrout, &bytes);
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if(rc == PLATFORM_CONV_OK) {
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return CURLE_OK;
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}
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else {
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return CURLE_CONV_FAILED;
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}
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}
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static CURLcode my_conv_from_utf8_to_ebcdic(char *buffer, size_t length)
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{
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char *tempptrin, *tempptrout;
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size_t bytes = length;
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int rc;
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tempptrin = tempptrout = buffer;
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rc = platform_u2e(&tempptrin, &bytes, &tempptrout, &bytes);
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if(rc == PLATFORM_CONV_OK) {
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return CURLE_OK;
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}
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else {
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return CURLE_CONV_FAILED;
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}
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}
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int main(void)
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{
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CURL *curl;
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* use platform-specific functions for codeset conversions */
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curl_easy_setopt(curl, CURLOPT_CONV_FROM_NETWORK_FUNCTION,
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my_conv_from_ascii_to_ebcdic);
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curl_easy_setopt(curl, CURLOPT_CONV_TO_NETWORK_FUNCTION,
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my_conv_from_ebcdic_to_ascii);
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curl_easy_setopt(curl, CURLOPT_CONV_FROM_UTF8_FUNCTION,
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my_conv_from_utf8_to_ebcdic);
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curl_easy_perform(curl);
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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return 0;
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}
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