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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* hex_decode.c
*
* Copyright (C) 2022 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "util/util.h"
#include "util/test.h"
static const struct {
int result;
const char *in;
const char *out;
} test_vec[] = {
{ 0, "", NULL },
{ -1, "A", NULL },
{ 0, "AA", "\xAA" },
{ 0, "0A", "\x0A" },
{ 0, "A0", "\xA0" },
{ -1, "A0B", NULL },
{ 0, "A0BC", "\xA0\xBC" },
{ 0, "0123456789ABCDEF", "\x01\x23\x45\x67\x89\xAB\xCD\xEF" },
{ 0, "0123456789abcdef", "\x01\x23\x45\x67\x89\xAB\xCD\xEF" },
{ -1, "0123456789ABCDEFGH", NULL },
{ -1, "0123456789abcdefgh", NULL },
};
int main(int argc, char **argv)
{
sqfs_u8 buffer[256];
size_t i, j;
(void)argc; (void)argv;
for (i = 0; i < sizeof(test_vec) / sizeof(test_vec[0]); ++i) {
size_t in_len = strlen(test_vec[i].in);
size_t out_len = in_len / 2;
int ret;
/* initialize the buffer */
for (j = 0; j < sizeof(buffer); ++j) {
buffer[j] = (j % 2) ? 0xAA : 0x55;
}
/* convert */
ret = hex_decode(test_vec[i].in, in_len,
buffer, sizeof(buffer));
/* make sure pattern is un-touched after expected offset */
for (j = out_len; j < sizeof(buffer); ++j) {
TEST_ASSERT(buffer[j] == ((j % 2) ? 0xAA : 0x55));
}
/* check result */
if (test_vec[i].result == 0) {
TEST_ASSERT(ret == 0);
ret = memcmp(buffer, test_vec[i].out, out_len);
TEST_ASSERT(ret == 0);
} else {
TEST_ASSERT(ret != 0);
}
}
return EXIT_SUCCESS;
}
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