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curl/lib/dynbuf.h
Daniel Stenberg 7f187d897c
h2: repair trailer handling
The previous h2 trailer fix in 54a2b63 was wrong and caused a
regression: it cannot deal with trailers immediately when read since
they may be read off the connection by the wrong 'data' owner.

This change reverts the logic back to gathering all trailers into a
single buffer, like before 54a2b63.

Reported-by: Tadej Vengust
Fixes #5663
Closes #5769
2020-08-03 23:43:24 +02:00

64 lines
2.5 KiB
C

#ifndef HEADER_CURL_DYNBUF_H
#define HEADER_CURL_DYNBUF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2020, 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.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.
*
***************************************************************************/
struct dynbuf {
char *bufr; /* point to a null-terminated allocated buffer */
size_t leng; /* number of bytes *EXCLUDING* the zero terminator */
size_t allc; /* size of the current allocation */
size_t toobig; /* size limit for the buffer */
#ifdef DEBUGBUILD
int init; /* detect API usage mistakes */
#endif
};
void Curl_dyn_init(struct dynbuf *s, size_t toobig);
void Curl_dyn_free(struct dynbuf *s);
CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len)
WARN_UNUSED_RESULT;
CURLcode Curl_dyn_add(struct dynbuf *s, const char *str)
WARN_UNUSED_RESULT;
CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...)
WARN_UNUSED_RESULT;
void Curl_dyn_reset(struct dynbuf *s);
CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail);
char *Curl_dyn_ptr(const struct dynbuf *s);
unsigned char *Curl_dyn_uptr(const struct dynbuf *s);
size_t Curl_dyn_len(const struct dynbuf *s);
/* Dynamic buffer max sizes */
#define DYN_DOH_RESPONSE 3000
#define DYN_DOH_CNAME 256
#define DYN_PAUSE_BUFFER (64 * 1024 * 1024)
#define DYN_HAXPROXY 2048
#define DYN_HTTP_REQUEST (128*1024)
#define DYN_H2_HEADERS (128*1024)
#define DYN_H2_TRAILERS (128*1024)
#define DYN_APRINTF 8000000
#define DYN_RTSP_REQ_HEADER (64*1024)
#define DYN_TRAILERS (64*1024)
#define DYN_PROXY_CONNECT_HEADERS 16384
#define DYN_QLOG_NAME 1024
#define DYN_H1_TRAILER 4096
#endif