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/*
Copyright (C) 2015 MariaDB Corporation AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02111-1301, USA
*/
#include <ma_global.h>
#include <ma_sys.h>
#include <errmsg.h>
#include <mysql.h>
#include <mysql/client_plugin.h>
#include <mariadb/ma_io.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_REMOTEIO
struct st_mysql_client_plugin_REMOTEIO *rio_plugin= NULL;
#endif
/* {{{ ma_open */
MA_FILE *ma_open(const char *location, const char *mode, MYSQL *mysql)
{
int CodePage= -1;
FILE *fp= NULL;
MA_FILE *ma_file= NULL;
if (!location || !location[0])
return NULL;
#ifdef HAVE_REMOTEIO
if (strstr(location, "://"))
goto remote;
#endif
#ifdef _WIN32
if (mysql && mysql->charset)
CodePage= madb_get_windows_cp(mysql->charset->csname);
#endif
if (CodePage == -1)
{
if (!(fp= fopen(location, mode)))
{
return NULL;
}
}
#ifdef _WIN32
/* See CONC-44: we need to support non ascii filenames too, so we convert
current character set to wchar_t and try to open the file via _wsopen */
else
{
wchar_t *w_filename= NULL;
wchar_t *w_mode= NULL;
int len;
DWORD Length;
len= MultiByteToWideChar(CodePage, 0, location, (int)strlen(location), NULL, 0);
if (!len)
return NULL;
if (!(w_filename= (wchar_t *)calloc(1, (len + 1) * sizeof(wchar_t))))
{
my_set_error(mysql, CR_OUT_OF_MEMORY, SQLSTATE_UNKNOWN, 0);
return NULL;
}
Length= len;
len= MultiByteToWideChar(CodePage, 0, location, (int)strlen(location), w_filename, (int)Length);
if (!len)
{
/* todo: error handling */
free(w_filename);
return NULL;
}
len= (int)strlen(mode);
if (!(w_mode= (wchar_t *)calloc(1, (len + 1) * sizeof(wchar_t))))
{
my_set_error(mysql, CR_OUT_OF_MEMORY, SQLSTATE_UNKNOWN, 0);
free(w_filename);
return NULL;
}
Length= len;
len= MultiByteToWideChar(CodePage, 0, mode, (int)strlen(mode), w_mode, (int)Length);
if (!len)
{
/* todo: error handling */
free(w_filename);
free(w_mode);
return NULL;
}
fp= _wfopen(w_filename, w_mode);
free(w_filename);
free(w_mode);
}
#endif
if (fp)
{
ma_file= (MA_FILE *)malloc(sizeof(MA_FILE));
if (!ma_file)
{
my_set_error(mysql, CR_OUT_OF_MEMORY, SQLSTATE_UNKNOWN, 0);
return NULL;
}
ma_file->type= MA_FILE_LOCAL;
ma_file->ptr= (void *)fp;
}
return ma_file;
#ifdef HAVE_REMOTEIO
remote:
/* check if plugin for remote io is available and try
* to open location */
{
MYSQL mysql;
if (rio_plugin ||(rio_plugin= (struct st_mysql_client_plugin_REMOTEIO *)
mysql_client_find_plugin(&mysql, NULL, MARIADB_CLIENT_REMOTEIO_PLUGIN)))
return rio_plugin->methods->mopen(location, mode);
return NULL;
}
#endif
}
/* }}} */
/* {{{ ma_close */
int ma_close(MA_FILE *file)
{
int rc;
if (!file)
return -1;
switch (file->type) {
case MA_FILE_LOCAL:
rc= fclose((FILE *)file->ptr);
free(file);
break;
#ifdef HAVE_REMOTEIO
case MA_FILE_REMOTE:
rc= rio_plugin->methods->mclose(file);
break;
#endif
default:
return -1;
}
return rc;
}
/* }}} */
/* {{{ ma_feof */
int ma_feof(MA_FILE *file)
{
if (!file)
return -1;
switch (file->type) {
case MA_FILE_LOCAL:
return feof((FILE *)file->ptr);
break;
#ifdef HAVE_REMOTEIO
case MA_FILE_REMOTE:
return rio_plugin->methods->mfeof(file);
break;
#endif
default:
return -1;
}
}
/* }}} */
/* {{{ ma_read */
size_t ma_read(void *ptr, size_t size, size_t nmemb, MA_FILE *file)
{
size_t s= 0;
if (!file)
return -1;
switch (file->type) {
case MA_FILE_LOCAL:
s= fread(ptr, size, nmemb, (FILE *)file->ptr);
return s;
break;
#ifdef HAVE_REMOTEIO
case MA_FILE_REMOTE:
return rio_plugin->methods->mread(ptr, size, nmemb, file);
break;
#endif
default:
return -1;
}
}
/* }}} */
/* {{{ ma_gets */
char *ma_gets(char *ptr, size_t size, MA_FILE *file)
{
if (!file)
return NULL;
switch (file->type) {
case MA_FILE_LOCAL:
return fgets(ptr, (int)size, (FILE *)file->ptr);
break;
#ifdef HAVE_REMOTEIO
case MA_FILE_REMOTE:
return rio_plugin->methods->mgets(ptr, size, file);
break;
#endif
default:
return NULL;
}
}
/* }}} */
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