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/*
* xdr.c
* -----
* Serialization/deserialization routines, using XDR (RFC 4506) encoding.
* These functions are not part of the public libhal API.
*
* Copyright (c) 2016-2018, NORDUnet A/S All rights reserved.
*
* 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 NORDUnet 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 <stdio.h>
#include <stdint.h>
#include <stddef.h> /* ptrdiff_t */
#include <string.h> /* memcpy, memset */
#include "hal.h"
#include "hal_internal.h" /* htonl/ntohl */
#include "xdr_internal.h"
static void hexdump(uint8_t *buf, uint32_t len)
{
for (uint32_t i = 0; i < len; ++i)
printf("%02x%c", buf[i], ((i & 0x07) == 0x07) ? '\n' : ' ');
if ((len & 0x07) != 0)
printf("\n");
}
int main(int argc, char *argv[])
{
uint32_t i;
uint8_t buf[256] = {0};
uint8_t *bufptr = buf;
const uint8_t *readptr;
uint8_t *limit = buf + sizeof(buf);
hal_error_t ret;
uint8_t alphabet[] = "abcdefghijklmnopqrstuvwxyz";
uint8_t readbuf[256] = {0};
printf("hal_xdr_encode_int: work to failure\n");
for (i = 1; i < 100; ++i) {
if ((ret = hal_xdr_encode_int(&bufptr, limit, i)) != HAL_OK) {
printf("%d: %s\n", i, hal_error_string(ret));
break;
}
}
hexdump(buf, ((uint8_t *)bufptr - buf));
printf("\nhal_xdr_decode_int:\n");
readptr = buf;
while (readptr < bufptr) {
if ((ret = hal_xdr_decode_int(&readptr, limit, &i)) != HAL_OK) {
printf("%s\n", hal_error_string(ret));
break;
}
printf("%u ", i);
}
printf("\n");
printf("\nhal_xdr_encode_variable_opaque: work to failure\n");
memset(buf, 0, sizeof(buf));
bufptr = buf;
for (i = 1; ; ++i) {
if ((ret = hal_xdr_encode_variable_opaque(&bufptr, limit, alphabet, i)) != HAL_OK) {
printf("%d: %s\n", i, hal_error_string(ret));
break;
}
}
hexdump(buf, ((uint8_t *)bufptr - buf));
printf("\nhal_xdr_decode_variable_opaque:\n");
readptr = buf;
while (readptr < bufptr) {
size_t len;
if ((ret = hal_xdr_decode_variable_opaque(&readptr, limit, readbuf, &len, bufptr - readptr)) != HAL_OK) {
printf("%s\n", hal_error_string(ret));
break;
}
printf("%lu: ", len);
for (size_t j = 0; j < len; ++j)
putchar(readbuf[j]);
putchar('\n');
memset(readbuf, 0, sizeof(readbuf));
}
return 0;
}
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