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DisOrder 3.0
[disorder] / lib / hex.h
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1/*
2 * This file is part of DisOrder
3 * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#ifndef HEX_H
22#define HEX_H
23
24char *hex(const uint8_t *ptr, size_t n);
25/* convert an octet-string to hex */
26
27uint8_t *unhex(const char *s, size_t *np);
28/* convert a hex string back to an octet string */
29
30int unhexdigit(int c);
31/* if @c@ is a hex digit, return its value. else return -1 and log an error. */
32
33int unhexdigitq(int c);
34/* same as unhexdigit() but doesn't issue an error message */
35
36#endif /* HEX_H */
37
38/*
39Local Variables:
40c-basic-offset:2
41comment-column:40
42End:
43*/