Andrew's git - gitweb.git/blob - compat/apple-common-crypto.h

   1/* suppress inclusion of conflicting openssl functions */
   2#define OPENSSL_NO_MD5
   3#define HEADER_HMAC_H
   4#define HEADER_SHA_H
   5#include <CommonCrypto/CommonHMAC.h>
   6#define HMAC_CTX CCHmacContext
   7#define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len)
   8#define HMAC_Update CCHmacUpdate
   9#define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash)
  10#define HMAC_CTX_cleanup(ignore)
  11#define EVP_md5(...) kCCHmacAlgMD5
  12#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
  13#define APPLE_LION_OR_NEWER
  14#include <Security/Security.h>
  15/* Apple's TYPE_BOOL conflicts with config.c */
  16#undef TYPE_BOOL
  17#endif
  18
  19#ifdef APPLE_LION_OR_NEWER
  20#define git_CC_error_check(pattern, err) \
  21        do { \
  22                if (err) { \
  23                        die(pattern, (long)CFErrorGetCode(err)); \
  24                } \
  25        } while(0)
  26
  27#define EVP_EncodeBlock git_CC_EVP_EncodeBlock
  28static inline int git_CC_EVP_EncodeBlock(unsigned char *out,
  29                const unsigned char *in, int inlen)
  30{
  31        CFErrorRef err;
  32        SecTransformRef encoder;
  33        CFDataRef input, output;
  34        CFIndex length;
  35
  36        encoder = SecEncodeTransformCreate(kSecBase64Encoding, &err);
  37        git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
  38
  39        input = CFDataCreate(kCFAllocatorDefault, in, inlen);
  40        SecTransformSetAttribute(encoder, kSecTransformInputAttributeName,
  41                        input, &err);
  42        git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
  43
  44        output = SecTransformExecute(encoder, &err);
  45        git_CC_error_check("SecTransformExecute failed: %ld", err);
  46
  47        length = CFDataGetLength(output);
  48        CFDataGetBytes(output, CFRangeMake(0, length), out);
  49
  50        CFRelease(output);
  51        CFRelease(input);
  52        CFRelease(encoder);
  53
  54        return (int)strlen((const char *)out);
  55}
  56
  57#define EVP_DecodeBlock git_CC_EVP_DecodeBlock
  58static int inline git_CC_EVP_DecodeBlock(unsigned char *out,
  59                const unsigned char *in, int inlen)
  60{
  61        CFErrorRef err;
  62        SecTransformRef decoder;
  63        CFDataRef input, output;
  64        CFIndex length;
  65
  66        decoder = SecDecodeTransformCreate(kSecBase64Encoding, &err);
  67        git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
  68
  69        input = CFDataCreate(kCFAllocatorDefault, in, inlen);
  70        SecTransformSetAttribute(decoder, kSecTransformInputAttributeName,
  71                        input, &err);
  72        git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
  73
  74        output = SecTransformExecute(decoder, &err);
  75        git_CC_error_check("SecTransformExecute failed: %ld", err);
  76
  77        length = CFDataGetLength(output);
  78        CFDataGetBytes(output, CFRangeMake(0, length), out);
  79
  80        CFRelease(output);
  81        CFRelease(input);
  82        CFRelease(decoder);
  83
  84        return (int)strlen((const char *)out);
  85}
  86#endif /* APPLE_LION_OR_NEWER */