1 #ifndef HEADER_CURL_DYNBUF_H 2 #define HEADER_CURL_DYNBUF_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 11 * 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.se/docs/copyright.html. 15 * 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. 19 * 20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 21 * KIND, either express or implied. 22 * 23 * SPDX-License-Identifier: curl 24 * 25 ***************************************************************************/ 26 27 #include <curl/curl.h> 28 29 #ifndef BUILDING_LIBCURL 30 /* this renames the functions so that the tool code can use the same code 31 without getting symbol collisions */ 32 #define Curl_dyn_init(a,b) curlx_dyn_init(a,b) 33 #define Curl_dyn_add(a,b) curlx_dyn_add(a,b) 34 #define Curl_dyn_addn(a,b,c) curlx_dyn_addn(a,b,c) 35 #define Curl_dyn_addf curlx_dyn_addf 36 #define Curl_dyn_vaddf curlx_dyn_vaddf 37 #define Curl_dyn_free(a) curlx_dyn_free(a) 38 #define Curl_dyn_ptr(a) curlx_dyn_ptr(a) 39 #define Curl_dyn_uptr(a) curlx_dyn_uptr(a) 40 #define Curl_dyn_len(a) curlx_dyn_len(a) 41 #define Curl_dyn_reset(a) curlx_dyn_reset(a) 42 #define Curl_dyn_tail(a,b) curlx_dyn_tail(a,b) 43 #define Curl_dyn_setlen(a,b) curlx_dyn_setlen(a,b) 44 #define curlx_dynbuf dynbuf /* for the struct name */ 45 #endif 46 47 struct dynbuf { 48 char *bufr; /* point to a null-terminated allocated buffer */ 49 size_t leng; /* number of bytes *EXCLUDING* the null-terminator */ 50 size_t allc; /* size of the current allocation */ 51 size_t toobig; /* size limit for the buffer */ 52 #ifdef DEBUGBUILD 53 int init; /* detect API usage mistakes */ 54 #endif 55 }; 56 57 void Curl_dyn_init(struct dynbuf *s, size_t toobig); 58 void Curl_dyn_free(struct dynbuf *s); 59 CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len) 60 WARN_UNUSED_RESULT; 61 CURLcode Curl_dyn_add(struct dynbuf *s, const char *str) 62 WARN_UNUSED_RESULT; 63 CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...) 64 WARN_UNUSED_RESULT CURL_PRINTF(2, 3); 65 CURLcode Curl_dyn_vaddf(struct dynbuf *s, const char *fmt, va_list ap) 66 WARN_UNUSED_RESULT CURL_PRINTF(2, 0); 67 void Curl_dyn_reset(struct dynbuf *s); 68 CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail); 69 CURLcode Curl_dyn_setlen(struct dynbuf *s, size_t set); 70 char *Curl_dyn_ptr(const struct dynbuf *s); 71 unsigned char *Curl_dyn_uptr(const struct dynbuf *s); 72 size_t Curl_dyn_len(const struct dynbuf *s); 73 74 /* returns 0 on success, -1 on error */ 75 /* The implementation of this function exists in mprintf.c */ 76 int Curl_dyn_vprintf(struct dynbuf *dyn, const char *format, va_list ap_save); 77 78 /* Dynamic buffer max sizes */ 79 #define DYN_DOH_RESPONSE 3000 80 #define DYN_DOH_CNAME 256 81 #define DYN_PAUSE_BUFFER (64 * 1024 * 1024) 82 #define DYN_HAXPROXY 2048 83 #define DYN_HTTP_REQUEST (1024*1024) 84 #define DYN_APRINTF 8000000 85 #define DYN_RTSP_REQ_HEADER (64*1024) 86 #define DYN_TRAILERS (64*1024) 87 #define DYN_PROXY_CONNECT_HEADERS 16384 88 #define DYN_QLOG_NAME 1024 89 #define DYN_H1_TRAILER 4096 90 #define DYN_PINGPPONG_CMD (64*1024) 91 #define DYN_IMAP_CMD (64*1024) 92 #define DYN_MQTT_RECV (64*1024) 93 #endif 94
