86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/*
|
|
* testcode/readhex.c - read hex data.
|
|
*
|
|
* Copyright (c) 2007, NLnet Labs. All rights reserved.
|
|
*
|
|
* This software is open source.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 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.
|
|
*
|
|
* Neither the name of the NLNET LABS 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.
|
|
*
|
|
*/
|
|
/**
|
|
* \file
|
|
* Declarations useful for the unit tests.
|
|
*/
|
|
#include "config.h"
|
|
#include <ctype.h>
|
|
#include "testcode/readhex.h"
|
|
#include "util/log.h"
|
|
#include "sldns/sbuffer.h"
|
|
#include "sldns/parseutil.h"
|
|
|
|
/** skip whitespace */
|
|
static void
|
|
skip_whites(const char** p)
|
|
{
|
|
while(1) {
|
|
while(isspace((unsigned char)**p))
|
|
(*p)++;
|
|
if(**p == ';') {
|
|
/* comment, skip until newline */
|
|
while(**p && **p != '\n')
|
|
(*p)++;
|
|
if(**p == '\n')
|
|
(*p)++;
|
|
} else return;
|
|
}
|
|
}
|
|
|
|
/* takes a hex string and puts into buffer */
|
|
void hex_to_buf(sldns_buffer* pkt, const char* hex)
|
|
{
|
|
const char* p = hex;
|
|
int val;
|
|
sldns_buffer_clear(pkt);
|
|
while(*p) {
|
|
skip_whites(&p);
|
|
if(sldns_buffer_position(pkt) == sldns_buffer_limit(pkt))
|
|
fatal_exit("hex_to_buf: buffer too small");
|
|
if(!isalnum((unsigned char)*p))
|
|
break;
|
|
val = sldns_hexdigit_to_int(*p++) << 4;
|
|
skip_whites(&p);
|
|
log_assert(*p && isalnum((unsigned char)*p));
|
|
val |= sldns_hexdigit_to_int(*p++);
|
|
sldns_buffer_write_u8(pkt, (uint8_t)val);
|
|
skip_whites(&p);
|
|
}
|
|
sldns_buffer_flip(pkt);
|
|
}
|
|
|