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/*
* Copyright (C) 2015 Tobias Brunner
* HSR Hochschule fuer Technik Rapperswil
*
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include <errno.h>
#include <library.h>
#include <utils/debug.h>
#include "files_fetcher.h"
typedef struct private_files_fetcher_t private_files_fetcher_t;
/**
* private data of a files_fetcher_t object.
*/
struct private_files_fetcher_t {
/**
* Public data
*/
files_fetcher_t public;
/**
* Callback function
*/
fetcher_callback_t cb;
};
METHOD(fetcher_t, fetch, status_t,
private_files_fetcher_t *this, char *uri, void *userdata)
{
chunk_t *data;
status_t status = FAILED;
if (this->cb == fetcher_default_callback)
{
*(chunk_t*)userdata = chunk_empty;
}
if (!strpfx(uri, "file://"))
{
return NOT_SUPPORTED;
}
uri = uri + strlen("file://");
data = chunk_map(uri, FALSE);
if (!data)
{
DBG1(DBG_LIB, " opening '%s' failed: %s", uri, strerror(errno));
return FAILED;
}
if (this->cb(userdata, *data))
{
status = SUCCESS;
}
chunk_unmap(data);
return status;
}
METHOD(fetcher_t, set_option, bool,
private_files_fetcher_t *this, fetcher_option_t option, ...)
{
bool supported = TRUE;
va_list args;
va_start(args, option);
switch (option)
{
case FETCH_CALLBACK:
{
this->cb = va_arg(args, fetcher_callback_t);
break;
}
default:
supported = FALSE;
break;
}
va_end(args);
return supported;
}
METHOD(fetcher_t, destroy, void,
private_files_fetcher_t *this)
{
free(this);
}
/*
* Described in header.
*/
files_fetcher_t *files_fetcher_create()
{
private_files_fetcher_t *this;
INIT(this,
.public = {
.interface = {
.fetch = _fetch,
.set_option = _set_option,
.destroy = _destroy,
},
},
.cb = fetcher_default_callback,
);
return &this->public;
}
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