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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* frr_inet_ntop() unit test
* Copyright (C) 2019 David Lamparter
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include "tests/helpers/c/prng.h"
/* NB: libfrr is NOT linked for this unit test! */
#define INET_NTOP_NO_OVERRIDE
#include "lib/ntop.c"
int main(int argc, char **argv)
{
size_t i, j, k, l;
struct in_addr i4;
struct in6_addr i6, i6check;
char buf1[64], buf2[64];
const char *rv;
struct prng *prng;
prng = prng_new(0);
/* IPv4 */
for (i = 0; i < 1000; i++) {
i4.s_addr = prng_rand(prng);
assert(frr_inet_ntop(AF_INET, &i4, buf1, sizeof(buf1)));
assert(inet_ntop(AF_INET, &i4, buf2, sizeof(buf2)));
assert(!strcmp(buf1, buf2));
}
/* check size limit */
for (i = 0; i < sizeof(buf1); i++) {
memset(buf2, 0xcc, sizeof(buf2));
rv = frr_inet_ntop(AF_INET, &i4, buf2, i);
if (i < strlen(buf1) + 1)
assert(!rv);
else
assert(rv && !strcmp(buf1, buf2));
}
/* IPv6 */
for (i = 0; i < 10000; i++) {
uint16_t *i6w = (uint16_t *)&i6;
for (j = 0; j < 8; j++)
i6w[j] = prng_rand(prng);
/* clear some words */
l = prng_rand(prng) & 7;
for (j = 0; j < l; j++) {
uint32_t num = __builtin_ctz(prng_rand(prng));
uint32_t where = prng_rand(prng) & 7;
for (k = where; k < where + num && k < 8; k++)
i6w[k] = 0;
}
assert(frr_inet_ntop(AF_INET6, &i6, buf1, sizeof(buf1)));
assert(inet_ntop(AF_INET6, &i6, buf2, sizeof(buf2)));
if (strcmp(buf1, buf2))
printf("%-40s (FRR) != (SYS) %-40s\n", buf1, buf2);
assert(inet_pton(AF_INET6, buf1, &i6check));
assert(!memcmp(&i6, &i6check, sizeof(i6)));
}
return 0;
}
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