chiark / gitweb /
(Slightly scrappy) new playlist box
[disorder] / lib / hex.h
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460b9539 1/*
2 * This file is part of DisOrder
5aff007d 3 * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell
460b9539 4 *
e7eb3a27 5 * This program is free software: you can redistribute it and/or modify
460b9539 6 * it under the terms of the GNU General Public License as published by
e7eb3a27 7 * the Free Software Foundation, either version 3 of the License, or
460b9539 8 * (at your option) any later version.
e7eb3a27
RK
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
460b9539 15 * You should have received a copy of the GNU General Public License
e7eb3a27 16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
460b9539 17 */
132a5a4a 18/** @file lib/hex.h @brief Hexadecimal encoding and decoding */
460b9539 19
20#ifndef HEX_H
21#define HEX_H
22
23char *hex(const uint8_t *ptr, size_t n);
24/* convert an octet-string to hex */
25
26uint8_t *unhex(const char *s, size_t *np);
27/* convert a hex string back to an octet string */
28
29int unhexdigit(int c);
30/* if @c@ is a hex digit, return its value. else return -1 and log an error. */
31
32int unhexdigitq(int c);
33/* same as unhexdigit() but doesn't issue an error message */
34
35#endif /* HEX_H */
36
37/*
38Local Variables:
39c-basic-offset:2
40comment-column:40
41End:
42*/