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/* Test dl-hash functions.
Copyright (C) 2022-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <simple-dl-hash.h>
#include <simple-dl-new-hash.h>
#include <dl-hash.h>
#include <dl-new-hash.h>
#include <support/support.h>
#include <support/check.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef unsigned int (*hash_f) (const char *);
static int
do_fill_test (size_t len, int fill, const char *name, hash_f testf,
hash_f expecf)
{
uint32_t expec, res;
char buf[len + 1];
memset (buf, fill, len);
buf[len] = '\0';
expec = expecf (buf);
res = testf (buf);
if (expec != res)
FAIL_EXIT1 ("FAIL: fill(%d) %s(%zu), %x != %x\n", fill, name, len, expec,
res);
return 0;
}
static int
do_fill_tests (size_t len, int fill)
{
if (do_fill_test (len, fill, "dl_new_hash", &_dl_new_hash,
&__simple_dl_new_hash))
return 1;
return do_fill_test (len, fill, "dl_elf_hash", &_dl_elf_hash,
&__simple_dl_elf_hash);
}
static int
do_rand_test (size_t len, const char *name, hash_f testf, hash_f expecf)
{
uint32_t expec, res;
size_t i;
char buf[len + 1];
char v;
for (i = 0; i < len; ++i)
{
v = random ();
if (v == 0)
v = 1;
buf[i] = v;
}
buf[len] = '\0';
expec = expecf (buf);
res = testf (buf);
if (expec != res)
FAIL_EXIT1 ("FAIL: random %s(%zu), %x != %x\n", name, len, expec, res);
return 0;
}
static int
do_rand_tests (size_t len)
{
if (do_rand_test (len, "dl_new_hash", &_dl_new_hash, &__simple_dl_new_hash))
return 1;
return do_rand_test (len, "dl_elf_hash", &_dl_elf_hash, &__simple_dl_elf_hash);
}
static int
do_test (void)
{
size_t i, j;
for (i = 0; i < 100; ++i)
{
for (j = 0; j < 8192; ++j)
{
if (do_rand_tests (i))
return 1;
if (do_fill_tests (i, -1) || do_fill_tests (i, 1)
|| do_fill_tests (i, 0x80) || do_fill_tests (i, 0x88))
return 1;
}
}
return 0;
}
#include <support/test-driver.c>
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