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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <time.h>
#include <osmocom/core/bits.h>
#include <osmocom/core/conv.h>
#include <osmocom/core/utils.h>
#include "conv.h"
static void fill_random(ubit_t *b, int n)
{
int i;
for (i = 0; i < n; i++)
b[i] = random() & 1;
}
int do_check(const struct conv_test_vector *test)
{
ubit_t *bu0, *bu1;
sbit_t *bs;
int len, j;
bu0 = malloc(sizeof(ubit_t) * MAX_LEN_BITS);
bu1 = malloc(sizeof(ubit_t) * MAX_LEN_BITS);
bs = malloc(sizeof(sbit_t) * MAX_LEN_BITS);
srandom(time(NULL));
/* Test name */
printf("[+] Testing: %s\n", test->name);
/* Check length */
len = osmo_conv_get_input_length(test->code, 0);
printf("[.] Input length : ret = %3d exp = %3d -> %s\n",
len, test->in_len, len == test->in_len ? "OK" : "Bad !");
if (len != test->in_len) {
fprintf(stderr, "[!] Failure for input length computation\n");
return -1;
}
len = osmo_conv_get_output_length(test->code, 0);
printf("[.] Output length : ret = %3d exp = %3d -> %s\n",
len, test->out_len, len == test->out_len ? "OK" : "Bad !");
if (len != test->out_len) {
fprintf(stderr, "[!] Failure for output length computation\n");
return -1;
}
/* Check pre-computed vector */
if (test->has_vec) {
printf("[.] Pre computed vector checks:\n");
printf("[..] Encoding: ");
osmo_pbit2ubit(bu0, test->vec_in, test->in_len);
len = osmo_conv_encode(test->code, bu0, bu1);
if (len != test->out_len) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed encoding length check\n");
return -1;
}
osmo_pbit2ubit(bu0, test->vec_out, test->out_len);
if (memcmp(bu0, bu1, test->out_len)) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed encoding: Results don't match\n");
return -1;
};
printf("OK\n");
printf("[..] Decoding: ");
osmo_ubit2sbit(bs, bu0, len);
len = osmo_conv_decode(test->code, bs, bu1);
if (len != 0) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed decoding: non-zero path (%d)\n", len);
return -1;
}
osmo_pbit2ubit(bu0, test->vec_in, test->in_len);
if (memcmp(bu0, bu1, test->in_len)) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed decoding: Results don't match\n");
return -1;
}
printf("OK\n");
}
/* Check random vector */
printf("[.] Random vector checks:\n");
for (j = 0; j < 3; j++) {
printf("[..] Encoding / Decoding cycle : ");
fill_random(bu0, test->in_len);
len = osmo_conv_encode(test->code, bu0, bu1);
if (len != test->out_len) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed encoding length check\n");
return -1;
}
osmo_ubit2sbit(bs, bu1, len);
len = osmo_conv_decode(test->code, bs, bu1);
if (len != 0) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed decoding: non-zero path (%d)\n", len);
return -1;
}
if (memcmp(bu0, bu1, test->in_len)) {
printf("ERROR !\n");
fprintf(stderr, "[!] Failed decoding: Results don't match\n");
return -1;
}
printf("OK\n");
}
/* Spacing */
printf("\n");
free(bs);
free(bu1);
free(bu0);
return 0;
}
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