buffer.h 4.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125
  1. /* crypto/buffer/buffer.h */
  2. /* Copyright (C) 1995-1998 Eric Young ([email protected])
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young ([email protected]).
  7. * The implementation was written so as to conform with Netscapes SSL.
  8. *
  9. * This library is free for commercial and non-commercial use as long as
  10. * the following conditions are aheared to. The following conditions
  11. * apply to all code found in this distribution, be it the RC4, RSA,
  12. * lhash, DES, etc., code; not just the SSL code. The SSL documentation
  13. * included with this distribution is covered by the same copyright terms
  14. * except that the holder is Tim Hudson ([email protected]).
  15. *
  16. * Copyright remains Eric Young's, and as such any Copyright notices in
  17. * the code are not to be removed.
  18. * If this package is used in a product, Eric Young should be given attribution
  19. * as the author of the parts of the library used.
  20. * This can be in the form of a textual message at program startup or
  21. * in documentation (online or textual) provided with the package.
  22. *
  23. * Redistribution and use in source and binary forms, with or without
  24. * modification, are permitted provided that the following conditions
  25. * are met:
  26. * 1. Redistributions of source code must retain the copyright
  27. * notice, this list of conditions and the following disclaimer.
  28. * 2. Redistributions in binary form must reproduce the above copyright
  29. * notice, this list of conditions and the following disclaimer in the
  30. * documentation and/or other materials provided with the distribution.
  31. * 3. All advertising materials mentioning features or use of this software
  32. * must display the following acknowledgement:
  33. * "This product includes cryptographic software written by
  34. * Eric Young ([email protected])"
  35. * The word 'cryptographic' can be left out if the rouines from the library
  36. * being used are not cryptographic related :-).
  37. * 4. If you include any Windows specific code (or a derivative thereof) from
  38. * the apps directory (application code) you must include an acknowledgement:
  39. * "This product includes software written by Tim Hudson ([email protected])"
  40. *
  41. * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51. * SUCH DAMAGE.
  52. *
  53. * The licence and distribution terms for any publically available version or
  54. * derivative of this code cannot be changed. i.e. this code cannot simply be
  55. * copied and put under another distribution licence
  56. * [including the GNU Public Licence.]
  57. */
  58. #ifndef HEADER_BUFFER_H
  59. # define HEADER_BUFFER_H
  60. # include <openssl/ossl_typ.h>
  61. #ifdef __cplusplus
  62. extern "C" {
  63. #endif
  64. # include <stddef.h>
  65. # if !defined(NO_SYS_TYPES_H)
  66. # include <sys/types.h>
  67. # endif
  68. /* Already declared in ossl_typ.h */
  69. /* typedef struct buf_mem_st BUF_MEM; */
  70. struct buf_mem_st {
  71. size_t length; /* current number of bytes */
  72. char *data;
  73. size_t max; /* size of buffer */
  74. };
  75. BUF_MEM *BUF_MEM_new(void);
  76. void BUF_MEM_free(BUF_MEM *a);
  77. int BUF_MEM_grow(BUF_MEM *str, size_t len);
  78. int BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
  79. size_t BUF_strnlen(const char *str, size_t maxlen);
  80. char *BUF_strdup(const char *str);
  81. /*
  82. * Like strndup, but in addition, explicitly guarantees to never read past the
  83. * first |siz| bytes of |str|.
  84. */
  85. char *BUF_strndup(const char *str, size_t siz);
  86. void *BUF_memdup(const void *data, size_t siz);
  87. void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
  88. /* safe string functions */
  89. size_t BUF_strlcpy(char *dst, const char *src, size_t siz);
  90. size_t BUF_strlcat(char *dst, const char *src, size_t siz);
  91. /* BEGIN ERROR CODES */
  92. /*
  93. * The following lines are auto generated by the script mkerr.pl. Any changes
  94. * made after this point may be overwritten when the script is next run.
  95. */
  96. void ERR_load_BUF_strings(void);
  97. /* Error codes for the BUF functions. */
  98. /* Function codes. */
  99. # define BUF_F_BUF_MEMDUP 103
  100. # define BUF_F_BUF_MEM_GROW 100
  101. # define BUF_F_BUF_MEM_GROW_CLEAN 105
  102. # define BUF_F_BUF_MEM_NEW 101
  103. # define BUF_F_BUF_STRDUP 102
  104. # define BUF_F_BUF_STRNDUP 104
  105. /* Reason codes. */
  106. #ifdef __cplusplus
  107. }
  108. #endif
  109. #endif