File: hex.c

package info (click to toggle)
libhsync 0.5.7-1.2
  • links: PTS
  • area: main
  • in suites: woody
  • size: 1,060 kB
  • ctags: 543
  • sloc: sh: 7,944; ansic: 5,413; makefile: 154
file content (39 lines) | stat: -rw-r--r-- 1,349 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*				       	-*- c-file-style: "bsd" -*-
 * rproxy -- dynamic caching and delta update in HTTP
 * $Id: hex.c,v 1.8 2000/08/06 12:50:36 mbp Exp $
 * 
 * Copyright (C) 2000 by Martin Pool <mbp@humbug.org.au>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "includes.h"

void
hs_hexify_buf(char *to_buf, unsigned char const *from_buf, int from_len)
{
    static const char hex_chars[] = "0123456789abcdef";

    while (from_len-- > 0) {
	*(to_buf++) = hex_chars[((*from_buf) >> 4) & 0xf];
	*(to_buf++) = hex_chars[(*from_buf) & 0xf];
        if (!(from_len % 4)  &&  from_len) {
            *(to_buf++) = '_';
        }
	from_buf++;
    }

    *to_buf = 0;
}