mirror of
https://github.com/libretro/RetroArch.git
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114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2016 - Daniel De Matteis
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* Copyright (C) 2015-2016 - Andre Leiradella
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* Copyright (C) 2016 - Brad Parker
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <net/net_http.h>
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#include <features/features_cpu.h>
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#include "../performance_counters.h"
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#include "net_http_special.h"
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int net_http_get(const char **result, size_t *size, const char *url, retro_time_t *timeout)
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{
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size_t length;
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uint8_t* data = NULL;
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char* res = NULL;
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int ret = NET_HTTP_GET_OK;
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struct http_t* http = NULL;
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retro_time_t t0 = cpu_features_get_time_usec();
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struct http_connection_t *conn = net_http_connection_new(url);
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*result = NULL;
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/* Error creating the connection descriptor. */
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if (!conn)
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goto error;
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/* Don't bother with timeouts here, it's just a string scan. */
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while (!net_http_connection_iterate(conn)) {}
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/* Error finishing the connection descriptor. */
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if (!net_http_connection_done(conn))
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{
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ret = NET_HTTP_GET_MALFORMED_URL;
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goto error;
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}
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http = net_http_new(conn);
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/* Error connecting to the endpoint. */
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if (!http)
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{
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ret = NET_HTTP_GET_CONNECT_ERROR;
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goto error;
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}
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while (!net_http_update(http, NULL, NULL))
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{
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/* Timeout error. */
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if (timeout && (cpu_features_get_time_usec() - t0) > *timeout)
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{
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ret = NET_HTTP_GET_TIMEOUT;
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goto error;
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}
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}
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data = net_http_data(http, &length, false);
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if (data)
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{
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res = (char*)malloc(length + 1);
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/* Allocation error. */
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if ( !res )
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goto error;
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memcpy((void*)res, (void*)data, length);
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free(data);
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res[length] = 0;
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*result = res;
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}
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else
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{
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length = 0;
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*result = NULL;
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}
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if (size)
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*size = length;
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error:
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if ( http )
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net_http_delete( http );
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if ( conn )
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net_http_connection_free( conn );
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if (timeout)
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{
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t0 = cpu_features_get_time_usec() - t0;
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if (t0 < *timeout)
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*timeout -= t0;
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else
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*timeout = 0;
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}
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return ret;
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}
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