t_pkey.c 4.2 KB

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  1. /* crypto/asn1/t_pkey.c */
  2. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young (eay@cryptsoft.com).
  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 (tjh@cryptsoft.com).
  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 (eay@cryptsoft.com)"
  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 (tjh@cryptsoft.com)"
  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. #include <stdio.h>
  59. #include "cryptlib.h"
  60. #include <openssl/objects.h>
  61. #include <openssl/buffer.h>
  62. #include <openssl/bn.h>
  63. int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
  64. unsigned char *buf, int off)
  65. {
  66. int n,i;
  67. const char *neg;
  68. if (num == NULL) return(1);
  69. neg = (BN_is_negative(num))?"-":"";
  70. if(!BIO_indent(bp,off,128))
  71. return 0;
  72. if (BN_is_zero(num))
  73. {
  74. if (BIO_printf(bp, "%s 0\n", number) <= 0)
  75. return 0;
  76. return 1;
  77. }
  78. if (BN_num_bytes(num) <= BN_BYTES)
  79. {
  80. if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
  81. (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
  82. <= 0) return(0);
  83. }
  84. else
  85. {
  86. buf[0]=0;
  87. if (BIO_printf(bp,"%s%s",number,
  88. (neg[0] == '-')?" (Negative)":"") <= 0)
  89. return(0);
  90. n=BN_bn2bin(num,&buf[1]);
  91. if (buf[1] & 0x80)
  92. n++;
  93. else buf++;
  94. for (i=0; i<n; i++)
  95. {
  96. if ((i%15) == 0)
  97. {
  98. if(BIO_puts(bp,"\n") <= 0
  99. || !BIO_indent(bp,off+4,128))
  100. return 0;
  101. }
  102. if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
  103. <= 0) return(0);
  104. }
  105. if (BIO_write(bp,"\n",1) <= 0) return(0);
  106. }
  107. return(1);
  108. }