Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: curl-7_10_6
Fetching contributors…

Cannot retrieve contributors at this time

file 88 lines (76 sloc) 2.978 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
#ifndef __HTTP_CHUNKS_H
#define __HTTP_CHUNKS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2003, 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 http://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.
*
* $Id$
***************************************************************************/
/*
* The longest possible hexadecimal number we support in a chunked transfer.
* Weird enough, RFC2616 doesn't set a maximum size! Since we use strtoul()
* to convert it, we "only" support 2^32 bytes chunk data.
*/
#define MAXNUM_SIZE 16

typedef enum {
  CHUNK_FIRST, /* never use */

  /* In this we await and buffer all hexadecimal digits until we get one
that isn't a hexadecimal digit. When done, we go POSTHEX */
  CHUNK_HEX,

  /* We have received the hexadecimal digit and we eat all characters until
we get a CRLF pair. When we see a CR we go to the CR state. */
  CHUNK_POSTHEX,

  /* A single CR has been found and we should get a LF right away in this
state or we go back to POSTHEX. When LF is received, we go to DATA.
If the size given was zero, we set state to STOP and return. */
  CHUNK_CR,

  /* We eat the amount of data specified. When done, we move on to the
POST_CR state. */
  CHUNK_DATA,

  /* POSTCR should get a CR and nothing else, then move to POSTLF */
  CHUNK_POSTCR,

  /* POSTLF should get a LF and nothing else, then move back to HEX as
the CRLF combination marks the end of a chunk */
  CHUNK_POSTLF,

  /* This is mainly used to really mark that we're out of the game.
NOTE: that there's a 'dataleft' field in the struct that will tell how
many bytes that were not passed to the client in the end of the last
buffer! */
  CHUNK_STOP,

  CHUNK_LAST /* never use */
} ChunkyState;

typedef enum {
  CHUNKE_STOP = -1,
  CHUNKE_OK = 0,
  CHUNKE_TOO_LONG_HEX = 1,
  CHUNKE_ILLEGAL_HEX,
  CHUNKE_BAD_CHUNK,
  CHUNKE_WRITE_ERROR,
  CHUNKE_STATE_ERROR,
  CHUNKE_BAD_ENCODING,
  CHUNKE_LAST
} CHUNKcode;

struct Curl_chunker {
  char hexbuffer[ MAXNUM_SIZE + 1];
  int hexindex;
  ChunkyState state;
  size_t datasize;
  size_t dataleft; /* untouched data amount at the end of the last buffer */
};

#endif
Something went wrong with that request. Please try again.