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/*
* Copyright (c) 2016, Bjorn Andersson <bjorn@kryo.se>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#define MIN(x, y) ((x) < (y) ? (x) : (y))
static uint8_t to_hex(uint8_t ch)
{
ch &= 0xf;
return ch <= 9 ? '0' + ch : 'a' + ch - 10;
}
void print_hex_dump(const char *prefix, const void *buf, size_t len)
{
const uint8_t *ptr = buf;
size_t linelen;
uint8_t ch;
char line[16 * 3 + 16 + 1];
int li;
int i;
int j;
for (i = 0; i < len; i += 16) {
linelen = MIN(16, len - i);
li = 0;
for (j = 0; j < linelen; j++) {
ch = ptr[i + j];
line[li++] = to_hex(ch >> 4);
line[li++] = to_hex(ch);
line[li++] = ' ';
}
for (; j < 16; j++) {
line[li++] = ' ';
line[li++] = ' ';
line[li++] = ' ';
}
for (j = 0; j < linelen; j++) {
ch = ptr[i + j];
line[li++] = isprint(ch) ? ch : '.';
}
line[li] = '\0';
printf("%s %04x: %s\n", prefix, i, line);
}
}
unsigned attr_as_unsigned(xmlNode *node, const char *attr, int *errors)
{
xmlChar *value;
value = xmlGetProp(node, (xmlChar*)attr);
if (!value) {
(*errors)++;
return 0;
}
return (unsigned int) strtoul((char*)value, NULL, 0);
}
const char *attr_as_string(xmlNode *node, const char *attr, int *errors)
{
xmlChar *value;
value = xmlGetProp(node, (xmlChar*)attr);
if (!value) {
(*errors)++;
return NULL;
}
if (value[0] == '\0')
return NULL;
return strdup((char*)value);
}
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