OSX/libsecurity_cdsa_utils/lib/cuEnc64.h

   1 /*
   2  * Copyright (c) 1998-2003,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please
   7  * obtain a copy of the License at http://www.apple.com/publicsource and
   8  * read it before using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  12  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  13  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  14  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  15  * Please see the License for the specific language governing rights and
  16  * limitations under the License.
  17  *
  18  * cuEnc64.h - encode/decode in 64-char IA5 format, per RFC 1421
  19  */
  20
  21 #ifndef _CU_ENC64_H_
  22 #define _CU_ENC64_H_
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 /*
  29  * Given input buffer inbuf, length inlen, decode from 64-char IA5 format to
  30  * binary. Result is malloced and returned; its length is returned in *outlen.
  31  * NULL return indicates corrupted input.
  32  */
  33 unsigned char *cuEnc64(const unsigned char *inbuf,
  34         unsigned inlen,
  35         unsigned *outlen);              // RETURNED
  36
  37 /*
  38  * Enc64, with embedded newlines every lineLen in result. A newline is
  39  * the UNIX \n. Result is mallocd.
  40  */
  41 unsigned char *cuEnc64WithLines(const unsigned char *inbuf,
  42         unsigned inlen,
  43         unsigned linelen,
  44         unsigned *outlen);              // RETURNED
  45
  46 /*
  47  * Given input buffer inbuf, length inlen, decode from 64-char IA5 format to
  48  * binary. Result is malloced and returned; its length is returned in *outlen.
  49  * NULL return indicates corrupted input. All whitespace in inbuf is
  50  * ignored.
  51  */
  52 unsigned char *cuDec64(const unsigned char *inbuf,
  53         unsigned inlen,
  54         unsigned *outlen);
  55
  56 /*
  57  * Determine if specified input data is valid enc64 format. Returns 1
  58  * if valid, 0 if not.
  59  */
  60 int cuIsValidEnc64(const unsigned char *inbuf,
  61         unsigned inbufLen);
  62
  63 #ifdef __cplusplus
  64 }
  65 #endif
  66
  67 #endif  /*_CU_ENC64_H_*/