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Commit | Line | Data |
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b73ecb48 | 1 | #include "git-compat-util.h" |
d1cbe1e6 | 2 | #include "hash.h" |
b73ecb48 | 3 | #include "hex.h" |
a5031214 | 4 | |
dadacf10 | 5 | static int get_hash_hex_algop(const char *hex, unsigned char *hash, |
6 | const struct git_hash_algo *algop) | |
a5031214 LT |
7 | { |
8 | int i; | |
dadacf10 | 9 | for (i = 0; i < algop->rawsz; i++) { |
d2330973 RS |
10 | int val = hex2chr(hex); |
11 | if (val < 0) | |
a5031214 | 12 | return -1; |
dadacf10 | 13 | *hash++ = val; |
a5031214 LT |
14 | hex += 2; |
15 | } | |
16 | return 0; | |
17 | } | |
18 | ||
08e5fb12 | 19 | int get_hash_hex(const char *hex, unsigned char *sha1) |
dadacf10 | 20 | { |
21 | return get_hash_hex_algop(hex, sha1, the_hash_algo); | |
22 | } | |
23 | ||
24 | int get_oid_hex_algop(const char *hex, struct object_id *oid, | |
25 | const struct git_hash_algo *algop) | |
26 | { | |
5a6dce70 | 27 | int ret = get_hash_hex_algop(hex, oid->hash, algop); |
28 | if (!ret) | |
29 | oid_set_algo(oid, algop); | |
30 | return ret; | |
dadacf10 | 31 | } |
32 | ||
61e2a70f | 33 | /* |
34 | * NOTE: This function relies on hash algorithms being in order from shortest | |
35 | * length to longest length. | |
36 | */ | |
37 | int get_oid_hex_any(const char *hex, struct object_id *oid) | |
38 | { | |
39 | int i; | |
40 | for (i = GIT_HASH_NALGOS - 1; i > 0; i--) { | |
5a6dce70 | 41 | if (!get_oid_hex_algop(hex, oid, &hash_algos[i])) |
61e2a70f | 42 | return i; |
43 | } | |
44 | return GIT_HASH_UNKNOWN; | |
45 | } | |
46 | ||
aa1c6fdf | 47 | int get_oid_hex(const char *hex, struct object_id *oid) |
48 | { | |
dadacf10 | 49 | return get_oid_hex_algop(hex, oid, the_hash_algo); |
aa1c6fdf | 50 | } |
51 | ||
dadacf10 | 52 | int parse_oid_hex_algop(const char *hex, struct object_id *oid, |
53 | const char **end, | |
54 | const struct git_hash_algo *algop) | |
605f430e | 55 | { |
5a6dce70 | 56 | int ret = get_oid_hex_algop(hex, oid, algop); |
605f430e | 57 | if (!ret) |
dadacf10 | 58 | *end = hex + algop->hexsz; |
605f430e | 59 | return ret; |
60 | } | |
61 | ||
61e2a70f | 62 | int parse_oid_hex_any(const char *hex, struct object_id *oid, const char **end) |
63 | { | |
64 | int ret = get_oid_hex_any(hex, oid); | |
65 | if (ret) | |
66 | *end = hex + hash_algos[ret].hexsz; | |
67 | return ret; | |
68 | } | |
69 | ||
dadacf10 | 70 | int parse_oid_hex(const char *hex, struct object_id *oid, const char **end) |
71 | { | |
72 | return parse_oid_hex_algop(hex, oid, end, the_hash_algo); | |
73 | } | |
74 | ||
47edb649 | 75 | char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash, |
76 | const struct git_hash_algo *algop) | |
a5031214 | 77 | { |
a5031214 | 78 | static const char hex[] = "0123456789abcdef"; |
af49c6d0 | 79 | char *buf = buffer; |
a5031214 LT |
80 | int i; |
81 | ||
b8505ecb | 82 | /* |
83 | * Our struct object_id has been memset to 0, so default to printing | |
84 | * using the default hash. | |
85 | */ | |
86 | if (algop == &hash_algos[0]) | |
87 | algop = the_hash_algo; | |
88 | ||
47edb649 | 89 | for (i = 0; i < algop->rawsz; i++) { |
90 | unsigned int val = *hash++; | |
a5031214 LT |
91 | *buf++ = hex[val >> 4]; |
92 | *buf++ = hex[val & 0xf]; | |
93 | } | |
94 | *buf = '\0'; | |
95 | ||
96 | return buffer; | |
97 | } | |
aa1c6fdf | 98 | |
55c529a7 | 99 | char *oid_to_hex_r(char *buffer, const struct object_id *oid) |
100 | { | |
3dd71461 | 101 | return hash_to_hex_algop_r(buffer, oid->hash, &hash_algos[oid->algo]); |
55c529a7 | 102 | } |
103 | ||
47edb649 | 104 | char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *algop) |
af49c6d0 JK |
105 | { |
106 | static int bufno; | |
dc01505f | 107 | static char hexbuffer[4][GIT_MAX_HEXSZ + 1]; |
bb84735c | 108 | bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer); |
47edb649 | 109 | return hash_to_hex_algop_r(hexbuffer[bufno], hash, algop); |
110 | } | |
111 | ||
47edb649 | 112 | char *hash_to_hex(const unsigned char *hash) |
113 | { | |
114 | return hash_to_hex_algop(hash, the_hash_algo); | |
af49c6d0 JK |
115 | } |
116 | ||
aa1c6fdf | 117 | char *oid_to_hex(const struct object_id *oid) |
118 | { | |
3dd71461 | 119 | return hash_to_hex_algop(oid->hash, &hash_algos[oid->algo]); |
aa1c6fdf | 120 | } |