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a_print.c 4.5 KB

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  1. /* crypto/asn1/a_print.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/asn1.h>
  61. int ASN1_PRINTABLE_type(const unsigned char *s, int len)
  62. {
  63. int c;
  64. int ia5=0;
  65. int t61=0;
  66. if (len <= 0) len= -1;
  67. if (s == NULL) return(V_ASN1_PRINTABLESTRING);
  68. while ((*s) && (len-- != 0))
  69. {
  70. c= *(s++);
  71. #ifndef CHARSET_EBCDIC
  72. if (!( ((c >= 'a') && (c <= 'z')) ||
  73. ((c >= 'A') && (c <= 'Z')) ||
  74. (c == ' ') ||
  75. ((c >= '0') && (c <= '9')) ||
  76. (c == ' ') || (c == '\'') ||
  77. (c == '(') || (c == ')') ||
  78. (c == '+') || (c == ',') ||
  79. (c == '-') || (c == '.') ||
  80. (c == '/') || (c == ':') ||
  81. (c == '=') || (c == '?')))
  82. ia5=1;
  83. if (c&0x80)
  84. t61=1;
  85. #else
  86. if (!isalnum(c) && (c != ' ') &&
  87. strchr("'()+,-./:=?", c) == NULL)
  88. ia5=1;
  89. if (os_toascii[c] & 0x80)
  90. t61=1;
  91. #endif
  92. }
  93. if (t61) return(V_ASN1_T61STRING);
  94. if (ia5) return(V_ASN1_IA5STRING);
  95. return(V_ASN1_PRINTABLESTRING);
  96. }
  97. int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s)
  98. {
  99. int i;
  100. unsigned char *p;
  101. if (s->type != V_ASN1_UNIVERSALSTRING) return(0);
  102. if ((s->length%4) != 0) return(0);
  103. p=s->data;
  104. for (i=0; i<s->length; i+=4)
  105. {
  106. if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0'))
  107. break;
  108. else
  109. p+=4;
  110. }
  111. if (i < s->length) return(0);
  112. p=s->data;
  113. for (i=3; i<s->length; i+=4)
  114. {
  115. *(p++)=s->data[i];
  116. }
  117. *(p)='\0';
  118. s->length/=4;
  119. s->type=ASN1_PRINTABLE_type(s->data,s->length);
  120. return(1);
  121. }