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/* vi: set expandtab sw=4 sts=4: */
/* string_util.c - convenience routines for common string operations
Copyright (C) 2015 Paul Barker
SPDX-License-Identifier: GPL-2.0-or-later
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, 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
General Public License for more details.
*/
#include "config.h"
#include "string_util.h"
#include "xfuncs.h"
char *bin_to_hex(const void *bin_data, size_t len)
{
const unsigned char *src = (const unsigned char *)bin_data;
char *buf = xmalloc(2 * len + 1);
int i;
static const unsigned char bin2hex[16] = {
'0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'a', 'b',
'c', 'd', 'e', 'f'
};
for (i = 0; i < len; i++) {
buf[i * 2] = bin2hex[src[i] >> 4];
buf[i * 2 + 1] = bin2hex[src[i] & 0xf];
}
buf[len * 2] = '\0';
return buf;
}
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