Merge branch 'jk/perf-no-dups'
[git/git.git] / compat / apple-common-crypto.h
CommitLineData
3ef2bcad
JH
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>
3ef2bcad 6#define EVP_md5(...) kCCHmacAlgMD5
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KY
7/* CCHmac doesn't take md_len and the return type is void */
8#define HMAC git_CC_HMAC
9static 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)
13{
14 CCHmac(alg, key, key_len, data, data_len, md);
15 return md;
16}
17
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JH
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
24
001fd7a9
APD
25#ifndef SHA1_MAX_BLOCK_SIZE
26#error Using Apple Common Crypto library requires setting SHA1_MAX_BLOCK_SIZE
27#endif
28
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JH
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)
36
37#define EVP_EncodeBlock git_CC_EVP_EncodeBlock
38static inline int git_CC_EVP_EncodeBlock(unsigned char *out,
39 const unsigned char *in, int inlen)
40{
41 CFErrorRef err;
42 SecTransformRef encoder;
43 CFDataRef input, output;
44 CFIndex length;
45
46 encoder = SecEncodeTransformCreate(kSecBase64Encoding, &err);
47 git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
48
49 input = CFDataCreate(kCFAllocatorDefault, in, inlen);
50 SecTransformSetAttribute(encoder, kSecTransformInputAttributeName,
51 input, &err);
52 git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
53
54 output = SecTransformExecute(encoder, &err);
55 git_CC_error_check("SecTransformExecute failed: %ld", err);
56
57 length = CFDataGetLength(output);
58 CFDataGetBytes(output, CFRangeMake(0, length), out);
59
60 CFRelease(output);
61 CFRelease(input);
62 CFRelease(encoder);
63
64 return (int)strlen((const char *)out);
65}
66
67#define EVP_DecodeBlock git_CC_EVP_DecodeBlock
68static int inline git_CC_EVP_DecodeBlock(unsigned char *out,
69 const unsigned char *in, int inlen)
70{
71 CFErrorRef err;
72 SecTransformRef decoder;
73 CFDataRef input, output;
74 CFIndex length;
75
76 decoder = SecDecodeTransformCreate(kSecBase64Encoding, &err);
77 git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
78
79 input = CFDataCreate(kCFAllocatorDefault, in, inlen);
80 SecTransformSetAttribute(decoder, kSecTransformInputAttributeName,
81 input, &err);
82 git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
83
84 output = SecTransformExecute(decoder, &err);
85 git_CC_error_check("SecTransformExecute failed: %ld", err);
86
87 length = CFDataGetLength(output);
88 CFDataGetBytes(output, CFRangeMake(0, length), out);
89
90 CFRelease(output);
91 CFRelease(input);
92 CFRelease(decoder);
93
94 return (int)strlen((const char *)out);
95}
96#endif /* APPLE_LION_OR_NEWER */