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/*
** Zabbix
** Copyright (C) 2001-2018 Zabbix SIA
**
** 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 2 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, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#define fopen __real_fopen
#define fclose __real_fclose
#define fgets __real_fgets
#include <stdio.h>
#undef fopen
#undef fclose
#undef fgets
#include "zbxmocktest.h"
#include "zbxmockdata.h"
#include "common.h"
#define ZBX_MOCK_MAX_FILES 16
void *mock_streams[ZBX_MOCK_MAX_FILES];
struct zbx_mock_IO_FILE
{
const char *contents;
};
static int is_profiler_path(const char *path)
{
size_t len;
len = strlen(path);
if ((ZBX_CONST_STRLEN(".gcda") < len && 0 == strcmp(path + len - ZBX_CONST_STRLEN(".gcda"), ".gcda")) ||
(ZBX_CONST_STRLEN(".gcno") < len &&
0 == strcmp(path + len - ZBX_CONST_STRLEN(".gcno"), ".gcno")))
{
return SUCCEED;
}
return FAIL;
}
static int is_mock_stream(FILE *stream)
{
int i;
for (i = 0; i < ZBX_MOCK_MAX_FILES && NULL != mock_streams[i]; i++)
{
if (stream == mock_streams[i])
return SUCCEED;
}
return FAIL;
}
FILE *__wrap_fopen(const char *path, const char *mode)
{
zbx_mock_error_t error;
zbx_mock_handle_t file_contents;
const char *contents;
struct zbx_mock_IO_FILE *file = NULL;
if (SUCCEED == is_profiler_path(path))
return __real_fopen(path, mode);
if (0 != strcmp(mode, "r"))
{
fail_msg("fopen() modes other than \"r\" are not supported.");
}
else if (ZBX_MOCK_NO_PARAMETER == (error = zbx_mock_file(path, &file_contents)))
{
errno = ENOENT; /* No such file or directory */
}
else if (ZBX_MOCK_SUCCESS != error)
{
fail_msg("Error while trying to open path \"%s\" from test case data: %s", path,
zbx_mock_error_string(error));
}
else if (ZBX_MOCK_SUCCESS != (error = zbx_mock_string(file_contents, &contents)))
{
fail_msg("Error while trying to get contents of file \"%s\" from test case data: %s", path,
zbx_mock_error_string(error));
}
else
{
int i;
for (i = 0; i < ZBX_MOCK_MAX_FILES && NULL != mock_streams[i]; i++)
;
if (i < ZBX_MOCK_MAX_FILES)
{
file = zbx_malloc(file, sizeof(struct zbx_mock_IO_FILE));
file->contents = contents;
mock_streams[i] = file;
}
else
errno = EMFILE; /* The per-process limit on the number of open file descriptors has been reached */
}
return (FILE *)file;
}
int __wrap_fclose(FILE *stream)
{
if (SUCCEED != is_mock_stream(stream))
return __real_fclose(stream);
zbx_free(stream);
return 0;
}
char *__wrap_fgets(char *s, int size, FILE *stream)
{
struct zbx_mock_IO_FILE *file = (struct zbx_mock_IO_FILE *)stream;
int length;
const char *newline;
if (SUCCEED != is_mock_stream(stream))
return __real_fgets(s, size, stream);
assert_non_null(s);
assert_true(0 < size);
if ('\0' == *file->contents)
return NULL;
if (size - 1 < (length = strlen(file->contents)))
length = size - 1;
if (NULL != (newline = strchr(file->contents, '\n')) && newline - file->contents + 1 < length)
length = newline - file->contents + 1;
assert_int_equal(length, zbx_snprintf(s, size, "%.*s", length, file->contents));
file->contents += length;
return s;
}
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