RetroArch/net_http_special.c
2016-01-27 05:55:26 +01:00

112 lines
2.6 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2016 - Daniel De Matteis
* Copyright (C) 2015-2016 - Andre Leiradella
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <net/net_http.h>
#include "libretro.h"
#include "performance.h"
#include "net_http_special.h"
int net_http_get(const char **result, size_t *size, const char *url, retro_time_t *timeout)
{
uint8_t* data;
size_t length;
char* res;
int ret = NET_HTTP_GET_OK;
struct http_t* http = NULL;
retro_time_t t0 = retro_get_time_usec();
struct http_connection_t *conn = net_http_connection_new(url);
*result = NULL;
/* Error creating the connection descriptor. */
if (!conn)
goto error;
/* Don't bother with timeouts here, it's just a string scan. */
while (!net_http_connection_iterate(conn)) {}
/* Error finishing the connection descriptor. */
if (!net_http_connection_done(conn))
{
ret = NET_HTTP_GET_MALFORMED_URL;
goto error;
}
http = net_http_new(conn);
/* Error connecting to the endpoint. */
if (!http)
{
ret = NET_HTTP_GET_CONNECT_ERROR;
goto error;
}
while (!net_http_update(http, NULL, NULL))
{
/* Timeout error. */
if (timeout && (retro_get_time_usec() - t0) > *timeout)
{
ret = NET_HTTP_GET_TIMEOUT;
goto error;
}
}
data = net_http_data(http, &length, false);
if (data)
{
res = (char*)malloc(length + 1);
/* Allocation error. */
if ( !res )
goto error;
memcpy((void*)res, (void*)data, length);
res[length] = 0;
*result = res;
}
else
{
length = 0;
*result = NULL;
}
if (size)
*size = length;
error:
if ( http )
net_http_delete( http );
if ( conn )
net_http_connection_free( conn );
if (timeout)
{
t0 = retro_get_time_usec() - t0;
if (t0 < *timeout)
*timeout -= t0;
else
*timeout = 0;
}
return ret;
}