neatvnc/include/websocket.h

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2023-04-06 21:02:01 +00:00
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#define WS_HEADER_MIN_SIZE 14
enum ws_opcode {
WS_OPCODE_CONT = 0,
WS_OPCODE_TEXT,
WS_OPCODE_BIN,
WS_OPCODE_CLOSE = 8,
WS_OPCODE_PING,
WS_OPCODE_PONG,
};
struct ws_frame_header {
bool fin;
enum ws_opcode opcode;
bool mask;
uint64_t payload_length;
uint8_t masking_key[4];
size_t header_length;
};
ssize_t ws_handshake(char* output, size_t output_maxlen, const char* input);
const char *ws_opcode_name(enum ws_opcode op);
bool ws_parse_frame_header(struct ws_frame_header* header,
const uint8_t* payload, size_t length);
void ws_apply_mask(const struct ws_frame_header* header,
uint8_t* restrict payload);
void ws_copy_payload(const struct ws_frame_header* header,
uint8_t* restrict dst, const uint8_t* restrict src, size_t len);
int ws_write_frame_header(uint8_t* dst, const struct ws_frame_header* header);