Merge tag 'l10n-2.10.0-rnd2.4' of git://github.com/git-l10n/git-po into maint
[git/git.git] / hex.c
1 #include "cache.h"
2
3 const signed char hexval_table[256] = {
4 -1, -1, -1, -1, -1, -1, -1, -1, /* 00-07 */
5 -1, -1, -1, -1, -1, -1, -1, -1, /* 08-0f */
6 -1, -1, -1, -1, -1, -1, -1, -1, /* 10-17 */
7 -1, -1, -1, -1, -1, -1, -1, -1, /* 18-1f */
8 -1, -1, -1, -1, -1, -1, -1, -1, /* 20-27 */
9 -1, -1, -1, -1, -1, -1, -1, -1, /* 28-2f */
10 0, 1, 2, 3, 4, 5, 6, 7, /* 30-37 */
11 8, 9, -1, -1, -1, -1, -1, -1, /* 38-3f */
12 -1, 10, 11, 12, 13, 14, 15, -1, /* 40-47 */
13 -1, -1, -1, -1, -1, -1, -1, -1, /* 48-4f */
14 -1, -1, -1, -1, -1, -1, -1, -1, /* 50-57 */
15 -1, -1, -1, -1, -1, -1, -1, -1, /* 58-5f */
16 -1, 10, 11, 12, 13, 14, 15, -1, /* 60-67 */
17 -1, -1, -1, -1, -1, -1, -1, -1, /* 68-67 */
18 -1, -1, -1, -1, -1, -1, -1, -1, /* 70-77 */
19 -1, -1, -1, -1, -1, -1, -1, -1, /* 78-7f */
20 -1, -1, -1, -1, -1, -1, -1, -1, /* 80-87 */
21 -1, -1, -1, -1, -1, -1, -1, -1, /* 88-8f */
22 -1, -1, -1, -1, -1, -1, -1, -1, /* 90-97 */
23 -1, -1, -1, -1, -1, -1, -1, -1, /* 98-9f */
24 -1, -1, -1, -1, -1, -1, -1, -1, /* a0-a7 */
25 -1, -1, -1, -1, -1, -1, -1, -1, /* a8-af */
26 -1, -1, -1, -1, -1, -1, -1, -1, /* b0-b7 */
27 -1, -1, -1, -1, -1, -1, -1, -1, /* b8-bf */
28 -1, -1, -1, -1, -1, -1, -1, -1, /* c0-c7 */
29 -1, -1, -1, -1, -1, -1, -1, -1, /* c8-cf */
30 -1, -1, -1, -1, -1, -1, -1, -1, /* d0-d7 */
31 -1, -1, -1, -1, -1, -1, -1, -1, /* d8-df */
32 -1, -1, -1, -1, -1, -1, -1, -1, /* e0-e7 */
33 -1, -1, -1, -1, -1, -1, -1, -1, /* e8-ef */
34 -1, -1, -1, -1, -1, -1, -1, -1, /* f0-f7 */
35 -1, -1, -1, -1, -1, -1, -1, -1, /* f8-ff */
36 };
37
38 int get_sha1_hex(const char *hex, unsigned char *sha1)
39 {
40 int i;
41 for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
42 int val = hex2chr(hex);
43 if (val < 0)
44 return -1;
45 *sha1++ = val;
46 hex += 2;
47 }
48 return 0;
49 }
50
51 int get_oid_hex(const char *hex, struct object_id *oid)
52 {
53 return get_sha1_hex(hex, oid->hash);
54 }
55
56 char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
57 {
58 static const char hex[] = "0123456789abcdef";
59 char *buf = buffer;
60 int i;
61
62 for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
63 unsigned int val = *sha1++;
64 *buf++ = hex[val >> 4];
65 *buf++ = hex[val & 0xf];
66 }
67 *buf = '\0';
68
69 return buffer;
70 }
71
72 char *oid_to_hex_r(char *buffer, const struct object_id *oid)
73 {
74 return sha1_to_hex_r(buffer, oid->hash);
75 }
76
77 char *sha1_to_hex(const unsigned char *sha1)
78 {
79 static int bufno;
80 static char hexbuffer[4][GIT_SHA1_HEXSZ + 1];
81 return sha1_to_hex_r(hexbuffer[3 & ++bufno], sha1);
82 }
83
84 char *oid_to_hex(const struct object_id *oid)
85 {
86 return sha1_to_hex(oid->hash);
87 }