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httplib_discard_unread_request_data.c
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httplib_discard_unread_request_data.c
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/*
* Copyright (c) 2016 Lammert Bies
* Copyright (c) 2013-2016 the Civetweb developers
* Copyright (c) 2004-2013 Sergey Lyubka
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* ============
* Release: 2.0
*/
#include "httplib_main.h"
/*
* void XX_httplib_discard_unread_request_data( const struct lh_ctx_t *ctx, struct lh_con_t *conn );
*
* The function XX_httplib_discard_unread_request_data() discards any request
* data on a connection which is not further needed but has alread been
* received.
*/
void XX_httplib_discard_unread_request_data( const struct lh_ctx_t *ctx, struct lh_con_t *conn ) {
char buf[MG_BUF_LEN];
size_t to_read;
int nread;
if ( ctx == NULL || conn == NULL ) return;
to_read = sizeof(buf);
if ( conn->is_chunked ) {
/*
* Chunked encoding: 1=chunk not read completely, 2=chunk read
* completely
*/
while ( conn->is_chunked == 1 ) {
nread = httplib_read( ctx, conn, buf, to_read );
if ( nread <= 0 ) break;
}
}
else {
/*
* Not chunked: content length is known
*/
while ( conn->consumed_content < conn->content_len ) {
if ( to_read > (size_t)(conn->content_len - conn->consumed_content) ) {
to_read = (size_t)(conn->content_len - conn->consumed_content);
}
nread = httplib_read( ctx, conn, buf, to_read );
if (nread <= 0) break;
}
}
} /* XX_httplib_discard_unread_request_data */