mirror of
https://github.com/moparisthebest/curl
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54a2b63c70
Triggered by a crash detected by OSS-Fuzz after the dynbuf introduction in
ed35d6590e. This should make the trailer handling more straight forward and
hopefully less error-prone.
Deliver the trailer header to the callback already at receive-time. No
longer caches the trailers to get delivered at end of stream.
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22030
Closes #5348
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
#ifndef HEADER_CURL_DYNBUF_H
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#define HEADER_CURL_DYNBUF_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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struct dynbuf {
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char *bufr; /* point to a zero terminated allocated buffer */
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size_t leng; /* number of bytes *EXCLUDING* the zero terminator */
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size_t allc; /* size of the current allocation */
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size_t toobig; /* size limit for the buffer */
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#ifdef DEBUGBUILD
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int init; /* detect API usage mistakes */
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#endif
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};
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void Curl_dyn_init(struct dynbuf *s, size_t toobig);
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void Curl_dyn_free(struct dynbuf *s);
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CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len)
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WARN_UNUSED_RESULT;
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CURLcode Curl_dyn_add(struct dynbuf *s, const char *str)
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WARN_UNUSED_RESULT;
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CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...)
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WARN_UNUSED_RESULT;
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void Curl_dyn_reset(struct dynbuf *s);
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CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail);
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char *Curl_dyn_ptr(const struct dynbuf *s);
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unsigned char *Curl_dyn_uptr(const struct dynbuf *s);
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size_t Curl_dyn_len(const struct dynbuf *s);
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/* Dynamic buffer max sizes */
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#define DYN_DOH_RESPONSE 3000
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#define DYN_DOH_CNAME 256
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#define DYN_PAUSE_BUFFER (64 * 1024 * 1024)
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#define DYN_HAXPROXY 2048
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#define DYN_HTTP_REQUEST (128*1024)
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#define DYN_H2_HEADERS (128*1024)
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#define DYN_H2_TRAILER 4096
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#define DYN_APRINTF 8000000
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#define DYN_RTSP_REQ_HEADER (64*1024)
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#define DYN_TRAILERS (64*1024)
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#define DYN_PROXY_CONNECT_HEADERS 16384
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#define DYN_QLOG_NAME 1024
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#endif
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