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* Curl header API: extract headers post transfer
*
h DFTACTGRP(*NO) ACTGRP(*NEW)
h OPTION(*NOSHOWCPY)
h BNDDIR('CURL')
*
**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 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.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.
*
* SPDX-License-Identifier: curl
*
**************************************************************************
*
/include H,CURL.INC
*
* Extract headers post transfer with the header API.
*
d pi
d url 120
*
d urllen s 10u 0 URL length
*
**************************************************************************
urllen = trimmed_length(url: %len(url));
// Do the curl stuff.
curl_global_init(CURL_GLOBAL_ALL);
main();
curl_global_cleanup();
*inlr = *on; // Exit
*
**************************************************************************
* Main procedure: do the curl job.
**************************************************************************
*
p main b
d main pi
*
d h s * Easy handle
d result s like(CURLcode) Curl return code
d inz(CURLE_OUT_OF_MEMORY)
d header ds likeds(curl_header) based(hp)
d strp1 s * Work string pointer
d strp2 s * Work string pointer
d inout s 52 For error display
// Create and fill curl handle.
h = curl_easy_init();
if h <> *NULL;
curl_easy_setopt_ccsid(h: CURLOPT_URL: %subst(url: 1: urllen): 0);
curl_easy_setopt(h: CURLOPT_FOLLOWLOCATION: 1);
curl_easy_setopt(h: CURLOPT_WRITEFUNCTION: %paddr(in_data_cb)); // Ignore input data
// Perform the request.
result = curl_easy_perform(h);
endif;
// Check for error and report if some.
if result <> CURLE_OK;
inout = %str(curl_easy_strerror_ccsid(result: 0));
dsply '' '*EXT' inout;
else;
if curl_easy_header_ccsid(h: 'Content-Type': 0: CURLH_HEADER: -1:
hp: 0) = CURLHE_OK;
strp2 = curl_to_ccsid(header.value: 0);
inout = 'Content-Type: ' + %str(strp2);
dsply inout;
curl_free(strp2);
endif;
dsply ' All server headers:';
hp = *NULL;
dow *on;
hp = curl_easy_nextheader(h: CURLH_HEADER: -1: hp);
if hp = *NULL;
leave;
endif;
strp1 = curl_to_ccsid(header.name: 0);
strp2 = curl_to_ccsid(header.value: 0);
inout = %str(strp1) + ': ' + %str(strp2) +
' (' + %char(header.amount) + ')';
curl_free(strp2);
curl_free(strp1);
dsply inout;
enddo;
inout = 'Done';
dsply '' '*EXT' inout;
curl_easy_cleanup(h); // Release handle
endif;
p main e
*
**************************************************************************
* Dummy data input callback procedure.
**************************************************************************
*
p in_data_cb b
d in_data_cb pi 10u 0
d ptr * value Input data pointer
d size 10u 0 value Data element size
d nmemb 10u 0 value Data element count
d userdata * value User data pointer
*
return size * nmemb;
p in_data_cb e
*
**************************************************************************
* Get the length of right-trimmed string
**************************************************************************
*
p trimmed_length b
d trimmed_length pi 10u 0
d string 999999 const options(*varsize)
d length 10u 0 value
*
d len s 10u 0
*
len = %scan(X'00': string: 1: length); // Limit to zero-terminated string
if len = 0;
len = length + 1;
endif;
if len <= 1;
return 0;
endif;
return %checkr(' ': string: len - 1); // Trim right
p trimmed_length e
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