Sync with 2.25.1
[git.git] / compat / apple-common-crypto.h
blob11727f3e1ed7f6d51e334734c19e9eafbf034783
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 EVP_md5(...) kCCHmacAlgMD5
7 /* CCHmac doesn't take md_len and the return type is void */
8 #define HMAC git_CC_HMAC
9 static inline unsigned char *git_CC_HMAC(CCHmacAlgorithm alg,
10 const void *key, int key_len,
11 const unsigned char *data, size_t data_len,
12 unsigned char *md, unsigned int *md_len)
14 CCHmac(alg, key, key_len, data, data_len, md);
15 return md;
18 #if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
19 #define APPLE_LION_OR_NEWER
20 #include <Security/Security.h>
21 /* Apple's TYPE_BOOL conflicts with config.c */
22 #undef TYPE_BOOL
23 #endif
25 #ifndef SHA1_MAX_BLOCK_SIZE
26 #error Using Apple Common Crypto library requires setting SHA1_MAX_BLOCK_SIZE
27 #endif
29 #ifdef APPLE_LION_OR_NEWER
30 #define git_CC_error_check(pattern, err) \
31 do { \
32 if (err) { \
33 die(pattern, (long)CFErrorGetCode(err)); \
34 } \
35 } while(0)
37 #define EVP_EncodeBlock git_CC_EVP_EncodeBlock
38 static inline int git_CC_EVP_EncodeBlock(unsigned char *out,
39 const unsigned char *in, int inlen)
41 CFErrorRef err;
42 SecTransformRef encoder;
43 CFDataRef input, output;
44 CFIndex length;
46 encoder = SecEncodeTransformCreate(kSecBase64Encoding, &err);
47 git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
49 input = CFDataCreate(kCFAllocatorDefault, in, inlen);
50 SecTransformSetAttribute(encoder, kSecTransformInputAttributeName,
51 input, &err);
52 git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
54 output = SecTransformExecute(encoder, &err);
55 git_CC_error_check("SecTransformExecute failed: %ld", err);
57 length = CFDataGetLength(output);
58 CFDataGetBytes(output, CFRangeMake(0, length), out);
60 CFRelease(output);
61 CFRelease(input);
62 CFRelease(encoder);
64 return (int)strlen((const char *)out);
67 #define EVP_DecodeBlock git_CC_EVP_DecodeBlock
68 static int inline git_CC_EVP_DecodeBlock(unsigned char *out,
69 const unsigned char *in, int inlen)
71 CFErrorRef err;
72 SecTransformRef decoder;
73 CFDataRef input, output;
74 CFIndex length;
76 decoder = SecDecodeTransformCreate(kSecBase64Encoding, &err);
77 git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
79 input = CFDataCreate(kCFAllocatorDefault, in, inlen);
80 SecTransformSetAttribute(decoder, kSecTransformInputAttributeName,
81 input, &err);
82 git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
84 output = SecTransformExecute(decoder, &err);
85 git_CC_error_check("SecTransformExecute failed: %ld", err);
87 length = CFDataGetLength(output);
88 CFDataGetBytes(output, CFRangeMake(0, length), out);
90 CFRelease(output);
91 CFRelease(input);
92 CFRelease(decoder);
94 return (int)strlen((const char *)out);
96 #endif /* APPLE_LION_OR_NEWER */