mirror of
https://github.com/moparisthebest/spdylay
synced 2024-11-16 14:35:03 -05:00
4e5e741907
spdylay_npn_get_proto_list() returns a pointer to the supported SPDY version list. The element of the list is spdylay_npn_proto struct. It contains all SPDY version information this library supports. The application can use this information to configure NPN protocol offerings/selection.
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*
|
|
* Spdylay - SPDY Library
|
|
*
|
|
* Copyright (c) 2012 Tatsuhiro Tsujikawa
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include "spdylay_npn.h"
|
|
|
|
#include <string.h>
|
|
|
|
static const spdylay_npn_proto proto_list[] = {
|
|
{ (const unsigned char*)"spdy/3", 6, SPDYLAY_PROTO_SPDY3 },
|
|
{ (const unsigned char*)"spdy/2", 6, SPDYLAY_PROTO_SPDY2 }
|
|
};
|
|
|
|
const spdylay_npn_proto* spdylay_npn_get_proto_list(size_t *len_ptr)
|
|
{
|
|
*len_ptr = sizeof(proto_list)/sizeof(spdylay_npn_proto);
|
|
return proto_list;
|
|
}
|
|
|
|
int spdylay_select_next_protocol(unsigned char **out, unsigned char *outlen,
|
|
const unsigned char *in, unsigned int inlen)
|
|
{
|
|
int http_selected = 0;
|
|
unsigned int i = 0;
|
|
for(; i < inlen; i += in[i]+1) {
|
|
unsigned int j;
|
|
for(j = 0; j < sizeof(proto_list)/sizeof(spdylay_npn_proto); ++j) {
|
|
if(in[i] == proto_list[j].len &&
|
|
memcmp(&in[i+1], proto_list[j].proto, in[i]) == 0) {
|
|
*out = (unsigned char*)&in[i+1];
|
|
*outlen = in[i];
|
|
return proto_list[j].version;
|
|
}
|
|
}
|
|
if(in[i] == 8 && memcmp(&in[i+1], "http/1.1", in[i]) == 0) {
|
|
http_selected = 1;
|
|
*out = (unsigned char*)&in[i+1];
|
|
*outlen = in[i];
|
|
/* Go through to the next iteration, because "spdy/X" may be
|
|
there */
|
|
}
|
|
}
|
|
if(http_selected) {
|
|
return 0;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
uint16_t spdylay_npn_get_version(const unsigned char *proto, size_t protolen)
|
|
{
|
|
if(proto == NULL) {
|
|
return 0;
|
|
} else {
|
|
if(protolen == 6) {
|
|
if(memcmp("spdy/2", proto, 6) == 0) {
|
|
return SPDYLAY_PROTO_SPDY2;
|
|
} else if(memcmp("spdy/3", proto, 6) == 0) {
|
|
return SPDYLAY_PROTO_SPDY3;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
}
|