dynbuf.h 3.6 KB

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  1. #ifndef HEADER_CURL_DYNBUF_H
  2. #define HEADER_CURL_DYNBUF_H
  3. /***************************************************************************
  4. * _ _ ____ _
  5. * Project ___| | | | _ \| |
  6. * / __| | | | |_) | |
  7. * | (__| |_| | _ <| |___
  8. * \___|\___/|_| \_\_____|
  9. *
  10. * Copyright (C) 2020 - 2022, 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. #include <curl/curl.h>
  27. #ifndef BUILDING_LIBCURL
  28. /* this renames the functions so that the tool code can use the same code
  29. without getting symbol collisions */
  30. #define Curl_dyn_init(a,b) curlx_dyn_init(a,b)
  31. #define Curl_dyn_add(a,b) curlx_dyn_add(a,b)
  32. #define Curl_dyn_addn(a,b,c) curlx_dyn_addn(a,b,c)
  33. #define Curl_dyn_addf curlx_dyn_addf
  34. #define Curl_dyn_vaddf curlx_dyn_vaddf
  35. #define Curl_dyn_free(a) curlx_dyn_free(a)
  36. #define Curl_dyn_ptr(a) curlx_dyn_ptr(a)
  37. #define Curl_dyn_uptr(a) curlx_dyn_uptr(a)
  38. #define Curl_dyn_len(a) curlx_dyn_len(a)
  39. #define Curl_dyn_reset(a) curlx_dyn_reset(a)
  40. #define Curl_dyn_tail(a,b) curlx_dyn_tail(a,b)
  41. #define Curl_dyn_setlen(a,b) curlx_dyn_setlen(a,b)
  42. #define curlx_dynbuf dynbuf /* for the struct name */
  43. #endif
  44. struct dynbuf {
  45. char *bufr; /* point to a null-terminated allocated buffer */
  46. size_t leng; /* number of bytes *EXCLUDING* the null-terminator */
  47. size_t allc; /* size of the current allocation */
  48. size_t toobig; /* size limit for the buffer */
  49. #ifdef DEBUGBUILD
  50. int init; /* detect API usage mistakes */
  51. #endif
  52. };
  53. void Curl_dyn_init(struct dynbuf *s, size_t toobig);
  54. void Curl_dyn_free(struct dynbuf *s);
  55. CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len)
  56. WARN_UNUSED_RESULT;
  57. CURLcode Curl_dyn_add(struct dynbuf *s, const char *str)
  58. WARN_UNUSED_RESULT;
  59. CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...)
  60. WARN_UNUSED_RESULT;
  61. CURLcode Curl_dyn_vaddf(struct dynbuf *s, const char *fmt, va_list ap)
  62. WARN_UNUSED_RESULT;
  63. void Curl_dyn_reset(struct dynbuf *s);
  64. CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail);
  65. CURLcode Curl_dyn_setlen(struct dynbuf *s, size_t set);
  66. char *Curl_dyn_ptr(const struct dynbuf *s);
  67. unsigned char *Curl_dyn_uptr(const struct dynbuf *s);
  68. size_t Curl_dyn_len(const struct dynbuf *s);
  69. /* returns 0 on success, -1 on error */
  70. /* The implementation of this function exists in mprintf.c */
  71. int Curl_dyn_vprintf(struct dynbuf *dyn, const char *format, va_list ap_save);
  72. /* Dynamic buffer max sizes */
  73. #define DYN_DOH_RESPONSE 3000
  74. #define DYN_DOH_CNAME 256
  75. #define DYN_PAUSE_BUFFER (64 * 1024 * 1024)
  76. #define DYN_HAXPROXY 2048
  77. #define DYN_HTTP_REQUEST (1024*1024)
  78. #define DYN_H2_HEADERS (128*1024)
  79. #define DYN_H2_TRAILERS (128*1024)
  80. #define DYN_APRINTF 8000000
  81. #define DYN_RTSP_REQ_HEADER (64*1024)
  82. #define DYN_TRAILERS (64*1024)
  83. #define DYN_PROXY_CONNECT_HEADERS 16384
  84. #define DYN_QLOG_NAME 1024
  85. #define DYN_H1_TRAILER 4096
  86. #define DYN_PINGPPONG_CMD (64*1024)
  87. #define DYN_IMAP_CMD (64*1024)
  88. #endif