2 * This file is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2,
4 * as published by the Free Software Foundation.
6 * In addition to the permissions in the GNU General Public License,
7 * the authors give you unlimited permission to link the compiled
8 * version of this file into combinations with other programs,
9 * and to distribute those combinations without any restriction
10 * coming from the use of this file. (The General Public License
11 * restrictions do apply in other respects; for example, they cover
12 * modification of the file, and distribution when not linked into
13 * a combined executable.)
15 * This file is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; see the file COPYING. If not, write to
22 * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
23 * Boston, MA 02110-1301, USA.
30 static signed char from_hex
[] = {
31 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 00 */
32 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 10 */
33 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 20 */
34 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 30 */
35 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 40 */
36 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 50 */
37 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 60 */
38 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 70 */
39 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 80 */
40 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 90 */
41 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a0 */
42 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* b0 */
43 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* c0 */
44 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* d0 */
45 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* e0 */
46 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* f0 */
48 static char to_hex
[] = "0123456789abcdef";
50 int git_oid_mkstr(git_oid
*out
, const char *str
)
53 for (p
= 0; p
< sizeof(out
->id
); p
++, str
+= 2) {
54 int v
= (from_hex
[(unsigned char)str
[0]] << 4)
55 | from_hex
[(unsigned char)str
[1]];
58 out
->id
[p
] = (unsigned char)v
;
63 GIT_INLINE(char) *fmt_one(char *str
, unsigned int val
)
65 *str
++ = to_hex
[val
>> 4];
66 *str
++ = to_hex
[val
& 0xf];
70 void git_oid_fmt(char *str
, const git_oid
*oid
)
74 for (i
= 0; i
< sizeof(oid
->id
); i
++)
75 str
= fmt_one(str
, oid
->id
[i
]);
78 void git_oid_pathfmt(char *str
, const git_oid
*oid
)
82 str
= fmt_one(str
, oid
->id
[0]);
84 for (i
= 1; i
< sizeof(oid
->id
); i
++)
85 str
= fmt_one(str
, oid
->id
[i
]);
88 char *git_oid_allocfmt(const git_oid
*oid
)
90 char *str
= git__malloc(GIT_OID_HEXSZ
+ 1);
93 git_oid_fmt(str
, oid
);
94 str
[GIT_OID_HEXSZ
] = '\0';
98 char *git_oid_to_string(char *out
, size_t n
, const git_oid
*oid
)
100 char str
[GIT_OID_HEXSZ
];
102 if (!out
|| n
== 0 || !oid
)
105 n
--; /* allow room for terminating NUL */
108 git_oid_fmt(str
, oid
);
109 if (n
> GIT_OID_HEXSZ
)