1 #ifndef HEADER_CURL_HTTP_CHUNKS_H
2 #define HEADER_CURL_HTTP_CHUNKS_H
3 /***************************************************************************
5 * Project ___| | | | _ \| |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
10 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at https://curl.haxx.se/docs/copyright.html.
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
23 ***************************************************************************/
25 * The longest possible hexadecimal number we support in a chunked transfer.
26 * Weird enough, RFC2616 doesn't set a maximum size! Since we use strtoul()
27 * to convert it, we "only" support 2^32 bytes chunk data.
29 #define MAXNUM_SIZE 16
32 /* await and buffer all hexadecimal digits until we get one that isn't a
33 hexadecimal digit. When done, we go CHUNK_LF */
36 /* wait for LF, ignore all else */
39 /* We eat the amount of data specified. When done, we move on to the
43 /* POSTLF should get a CR and then a LF and nothing else, then move back to
44 HEX as the CRLF combination marks the end of a chunk. A missing CR is no
48 /* Used to mark that we're out of the game. NOTE: that there's a 'dataleft'
49 field in the struct that will tell how many bytes that were not passed to
50 the client in the end of the last buffer! */
53 /* At this point optional trailer headers can be found, unless the next line
57 /* A trailer CR has been found - next state is CHUNK_TRAILER_POSTCR.
58 Next char must be a LF */
61 /* A trailer LF must be found now, otherwise CHUNKE_BAD_CHUNK will be
62 signalled If this is an empty trailer CHUNKE_STOP will be signalled.
63 Otherwise the trailer will be broadcasted via Curl_client_write() and the
64 next state will be CHUNK_TRAILER */
71 CHUNKE_TOO_LONG_HEX = 1,
80 const char *Curl_chunked_strerror(CHUNKcode code);
83 char hexbuffer[ MAXNUM_SIZE + 1];
87 size_t dataleft; /* untouched data amount at the end of the last buffer */
90 #endif /* HEADER_CURL_HTTP_CHUNKS_H */