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_take(a,b) curlx_dyn_take(a,b) 43 #define Curl_dyn_tail(a,b) curlx_dyn_tail(a,b) 44 #define Curl_dyn_setlen(a,b) curlx_dyn_setlen(a,b) 45 #define curlx_dynbuf dynbuf /* for the struct name */ 46 #endif 47 48 struct dynbuf { 49 char *bufr; /* point to a null-terminated allocated buffer */ 50 size_t leng; /* number of bytes *EXCLUDING* the null-terminator */ 51 size_t allc; /* size of the current allocation */ 52 size_t toobig; /* size limit for the buffer */ 53 #ifdef DEBUGBUILD 54 int init; /* detect API usage mistakes */ 55 #endif 56 }; 57 58 void Curl_dyn_init(struct dynbuf *s, size_t toobig); 59 void Curl_dyn_free(struct dynbuf *s); 60 CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len) 61 WARN_UNUSED_RESULT; 62 CURLcode Curl_dyn_add(struct dynbuf *s, const char *str) 63 WARN_UNUSED_RESULT; 64 CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...) 65 WARN_UNUSED_RESULT CURL_PRINTF(2, 3); 66 CURLcode Curl_dyn_vaddf(struct dynbuf *s, const char *fmt, va_list ap) 67 WARN_UNUSED_RESULT CURL_PRINTF(2, 0); 68 void Curl_dyn_reset(struct dynbuf *s); 69 CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail); 70 CURLcode Curl_dyn_setlen(struct dynbuf *s, size_t set); 71 char *Curl_dyn_ptr(const struct dynbuf *s); 72 unsigned char *Curl_dyn_uptr(const struct dynbuf *s); 73 size_t Curl_dyn_len(const struct dynbuf *s); 74 75 /* returns 0 on success, -1 on error */ 76 /* The implementation of this function exists in mprintf.c */ 77 int Curl_dyn_vprintf(struct dynbuf *dyn, const char *format, va_list ap_save); 78 79 /* Take the buffer out of the dynbuf. Caller has ownership and 80 * dynbuf resets to initial state. */ 81 char *Curl_dyn_take(struct dynbuf *s, size_t *plen); 82 83 /* Dynamic buffer max sizes */ 84 #define DYN_DOH_RESPONSE 3000 85 #define DYN_DOH_CNAME 256 86 #define DYN_PAUSE_BUFFER (64 * 1024 * 1024) 87 #define DYN_HAXPROXY 2048 88 #define DYN_HTTP_REQUEST (1024*1024) 89 #define DYN_APRINTF 8000000 90 #define DYN_RTSP_REQ_HEADER (64*1024) 91 #define DYN_TRAILERS (64*1024) 92 #define DYN_PROXY_CONNECT_HEADERS 16384 93 #define DYN_QLOG_NAME 1024 94 #define DYN_H1_TRAILER 4096 95 #define DYN_PINGPPONG_CMD (64*1024) 96 #define DYN_IMAP_CMD (64*1024) 97 #define DYN_MQTT_RECV (64*1024) 98 #endif 99
