text: /* Copyright (c) 2018, Google Inc.
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
   * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  
  #ifndef OPENSSL_HEADER_X509V3_INTERNAL_H
  #define OPENSSL_HEADER_X509V3_INTERNAL_H
  
  #include <CNIOBoringSSL_base.h>
  
  #if defined(__cplusplus)
  extern "C" {
  #endif
  
  
  // x509v3_bytes_to_hex encodes |len| bytes from |buffer| to hex and returns a
  // newly-allocated NUL-terminated string containing the result, or NULL on
  // allocation error.
  //
  // Note this function was historically named |hex_to_string| in OpenSSL, not
  // |string_to_hex|.
  char *x509v3_bytes_to_hex(const unsigned char *buffer, long len);
  
  // x509v3_hex_string_to_bytes decodes |str| in hex and returns a newly-allocated
  // array containing the result, or NULL on error. On success, it sets |*len| to
  // the length of the result. Colon separators between bytes in the input are
  // allowed and ignored.
  //
  // Note this function was historically named |string_to_hex| in OpenSSL, not
  // |hex_to_string|.
  unsigned char *x509v3_hex_to_bytes(const char *str, long *len);
  
  // x509v3_name_cmp returns zero if |name| is equal to |cmp| or begins with |cmp|
  // followed by '.'. Otherwise, it returns a non-zero number.
  int x509v3_name_cmp(const char *name, const char *cmp);
  
  // x509v3_looks_like_dns_name returns one if |in| looks like a DNS name and zero
  // otherwise.
  OPENSSL_EXPORT int x509v3_looks_like_dns_name(const unsigned char *in,
                                                size_t len);
  
  // x509v3_cache_extensions fills in a number of fields relating to X.509
  // extensions in |x|. It returns one on success and zero if some extensions were
  // invalid.
  int x509v3_cache_extensions(X509 *x);
  
  
  #if defined(__cplusplus)
  }  /* extern C */
  #endif
  
  #endif  /* OPENSSL_HEADER_X509V3_INTERNAL_H */
  