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/* Copyright (C) 2014-2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <limits.h>
#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include <unistd.h>
#include <cmocka.h>
/* Silence clang/GCC warnings when using cmocka 1.0 */
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#include "lib/defines.h"
#include "lib/utils.h"
#include <libknot/descriptor.h>
#include <libknot/rrset.h>
/* Helpers */
static inline void *mm_test_malloc(void *ctx, size_t n)
{ return test_malloc(n); }
static inline void mm_test_free(void *p)
{ if (p) test_free(p); }
/** Memory context using CMocka allocator. */
static inline void test_mm_ctx_init(knot_mm_t *mm)
{
mm->alloc = &mm_test_malloc;
mm->free = &mm_test_free;
}
/** Recursively delete directory. */
static inline int test_tmpdir_remove(const char *path)
{
char buf[512];
struct dirent *ent = NULL;
DIR *dir = opendir(path);
if (dir == NULL) {
return kr_error(errno);
}
while ((ent = readdir(dir)) != NULL) {
/* Skip special dirs (this presumes no files begin with '.') */
if (ent->d_name[0] == '.') {
continue;
}
sprintf(buf, "%s/%s", path, ent->d_name);
remove(buf);
}
remove(path);
closedir(dir);
return 0;
}
/** Create temporary directory. */
static inline const char* test_tmpdir_create(void)
{
static char env_path[64];
strcpy(env_path, "./tmpXXXXXX");
return mkdtemp(env_path);
}
/** Generate random string with given length. */
static inline void test_randstr(char* dst, size_t len)
{
if (len == 0) {
return;
}
for (int i = 0; i < len - 1; ++i) {
dst[i] = '0' + (int) (('Z'-'0') * (rand() / (RAND_MAX + 1.0)));
}
dst[len - 1] = '\0';
return;
}
/** Init RRSet with type TXT, random owner and random payload.
* @note Static memory reused, copy it if you need persistence.
*/
static inline void test_random_rr(knot_rrset_t *rr, uint32_t ttl)
{
static uint8_t owner_buf[KNOT_DNAME_MAXLEN];
static uint8_t rdata_buf[65535];
knot_rdata_t *rdata = (knot_rdata_t *)rdata_buf;
uint16_t num = rand() % (sizeof(owner_buf) - 2);
uint8_t tmp_buf[KNOT_DNAME_MAXLEN];
/* Create random label. */
memset(owner_buf, 0, sizeof(owner_buf));
uint8_t label_len = num % KNOT_DNAME_MAXLABELLEN;
owner_buf[0] = label_len;
test_randstr((char *)(owner_buf + 1), label_len);
/* Create payload */
tmp_buf[0] = num;
test_randstr((char *)(tmp_buf + 1), tmp_buf[0] + 1);
knot_rdata_init(rdata, num + 1, tmp_buf);
/* Assign static buffers. */
knot_rrset_init(rr, owner_buf, KNOT_RRTYPE_TXT, KNOT_CLASS_IN, ttl);
rr->rrs.count = 1;
rr->rrs.rdata = rdata;
}
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