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monero/external/net_skeleton/net_skeleton.h

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/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
* This software is dual-licensed: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. For the terms of this
* license, see <http://www.gnu.org/licenses/>.
*
* You are free to use this software under the terms of the GNU General
* Public License, 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.
*
* Alternatively, you can license this software under a commercial
* license, as set out in <http://cesanta.com/>.
*/
#ifndef NS_SKELETON_HEADER_INCLUDED
#define NS_SKELETON_HEADER_INCLUDED
#define NS_SKELETON_VERSION "2.2.0"
#undef UNICODE /* Use ANSI WinAPI functions */
#undef _UNICODE /* Use multibyte encoding on Windows */
#define _MBCS /* Use multibyte encoding on Windows */
#define _INTEGRAL_MAX_BITS 64 /* Enable _stati64() on Windows */
#define _CRT_SECURE_NO_WARNINGS /* Disable deprecation warning in VS2005+ */
#undef WIN32_LEAN_AND_MEAN /* Let windows.h always include winsock2.h */
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600 /* For flockfile() on Linux */
#endif
#define __STDC_FORMAT_MACROS /* <inttypes.h> wants this for C++ */
#define __STDC_LIMIT_MACROS /* C++ wants that for INT64_MAX */
#ifndef _LARGEFILE_SOURCE
#define _LARGEFILE_SOURCE /* Enable fseeko() and ftello() functions */
#endif
#define _FILE_OFFSET_BITS 64 /* Enable 64-bit file offsets */
#ifdef _MSC_VER
#pragma warning (disable : 4127) /* FD_SET() emits warning, disable it */
#pragma warning (disable : 4204) /* missing c99 support */
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <signal.h>
#ifndef va_copy
#ifdef __va_copy
#define va_copy __va_copy
#else
#define va_copy(x,y) (x) = (y)
#endif
#endif
#ifdef _WIN32
#ifdef _MSC_VER
#pragma comment(lib, "ws2_32.lib") /* Linking with winsock library */
#endif
#include <windows.h>
#include <process.h>
#ifndef EINPROGRESS
#define EINPROGRESS WSAEINPROGRESS
#endif
#ifndef EWOULDBLOCK
#define EWOULDBLOCK WSAEWOULDBLOCK
#endif
#ifndef __func__
#define STRX(x) #x
#define STR(x) STRX(x)
#define __func__ __FILE__ ":" STR(__LINE__)
#endif
#define snprintf _snprintf
#define vsnprintf _vsnprintf
#define sleep(x) Sleep((x) * 1000)
#define to64(x) _atoi64(x)
typedef int socklen_t;
typedef unsigned char uint8_t;
typedef unsigned int uint32_t;
typedef unsigned short uint16_t;
typedef unsigned __int64 uint64_t;
typedef __int64 int64_t;
typedef SOCKET sock_t;
#ifdef __MINGW32__
typedef struct stat ns_stat_t;
#else
typedef struct _stati64 ns_stat_t;
#endif
#ifndef S_ISDIR
#define S_ISDIR(x) ((x) & _S_IFDIR)
#endif
#else /* not _WIN32 */
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <pthread.h>
#include <stdarg.h>
#include <unistd.h>
#include <arpa/inet.h> /* For inet_pton() when NS_ENABLE_IPV6 is defined */
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/select.h>
#ifndef closesocket
#define closesocket(x) close(x)
#endif
#define __cdecl
#ifndef INVALID_SOCKET
#define INVALID_SOCKET (-1)
#endif
#ifdef __APPLE__
int64_t strtoll(const char * str, char ** endptr, int base);
#endif
#define to64(x) strtoll(x, NULL, 10)
typedef int sock_t;
typedef struct stat ns_stat_t;
#endif /* _WIN32 */
#ifdef NS_ENABLE_DEBUG
#define DBG(x) do { printf("%-20s ", __func__); printf x; putchar('\n'); \
fflush(stdout); } while(0)
#else
#define DBG(x)
#endif
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
#endif
#ifdef NS_ENABLE_SSL
#ifdef __APPLE__
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
#include <openssl/ssl.h>
#else
typedef void *SSL;
typedef void *SSL_CTX;
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
union socket_address {
struct sockaddr sa;
struct sockaddr_in sin;
#ifdef NS_ENABLE_IPV6
struct sockaddr_in6 sin6;
#else
struct sockaddr sin6;
#endif
};
/* Describes chunk of memory */
struct ns_str {
const char *p;
size_t len;
};
/* IO buffers interface */
struct iobuf {
char *buf;
size_t len;
size_t size;
};
void iobuf_init(struct iobuf *, size_t initial_size);
void iobuf_free(struct iobuf *);
size_t iobuf_append(struct iobuf *, const void *data, size_t data_size);
void iobuf_remove(struct iobuf *, size_t data_size);
void iobuf_resize(struct iobuf *, size_t new_size);
/* Callback function (event handler) prototype, must be defined by user. */
/* Net skeleton will call event handler, passing events defined above. */
struct ns_connection;
typedef void (*ns_event_handler_t)(struct ns_connection *, int ev, void *);
/* Events. Meaning of event parameter (evp) is given in the comment. */
#define NS_POLL 0 /* Sent to each connection on each call to ns_mgr_poll() */
#define NS_ACCEPT 1 /* New connection accept()-ed. union socket_address *addr */
#define NS_CONNECT 2 /* connect() succeeded or failed. int *success_status */
#define NS_RECV 3 /* Data has benn received. int *num_bytes */
#define NS_SEND 4 /* Data has been written to a socket. int *num_bytes */
#define NS_CLOSE 5 /* Connection is closed. NULL */
struct ns_mgr {
struct ns_connection *active_connections;
const char *hexdump_file; /* Debug hexdump file path */
sock_t ctl[2]; /* Socketpair for mg_wakeup() */
void *user_data; /* User data */
};
struct ns_connection {
struct ns_connection *next, *prev; /* ns_mgr::active_connections linkage */
struct ns_connection *listener; /* Set only for accept()-ed connections */
struct ns_mgr *mgr;
sock_t sock; /* Socket */
union socket_address sa; /* Peer address */
struct iobuf recv_iobuf; /* Received data */
struct iobuf send_iobuf; /* Data scheduled for sending */
SSL *ssl;
SSL_CTX *ssl_ctx;
time_t last_io_time; /* Timestamp of the last socket IO */
ns_event_handler_t proto_handler; /* Protocol-specific event handler */
void *proto_data; /* Protocol-specific data */
ns_event_handler_t handler; /* Event handler function */
void *user_data; /* User-specific data */
unsigned long flags;
#define NSF_FINISHED_SENDING_DATA (1 << 0)
#define NSF_BUFFER_BUT_DONT_SEND (1 << 1)
#define NSF_SSL_HANDSHAKE_DONE (1 << 2)
#define NSF_CONNECTING (1 << 3)
#define NSF_CLOSE_IMMEDIATELY (1 << 4)
#define NSF_WANT_READ (1 << 5)
#define NSF_WANT_WRITE (1 << 6) /* NOTE(lsm): proto-specific */
#define NSF_LISTENING (1 << 7) /* NOTE(lsm): proto-specific */
#define NSF_UDP (1 << 8)
#define NSF_IS_WEBSOCKET (1 << 9) /* NOTE(lsm): proto-specific */
#define NSF_WEBSOCKET_NO_DEFRAG (1 << 10) /* NOTE(lsm): proto-specific */
#define NSF_USER_1 (1 << 20)
#define NSF_USER_2 (1 << 21)
#define NSF_USER_3 (1 << 22)
#define NSF_USER_4 (1 << 23)
#define NSF_USER_5 (1 << 24)
#define NSF_USER_6 (1 << 25)
};
void ns_mgr_init(struct ns_mgr *, void *user_data);
void ns_mgr_free(struct ns_mgr *);
time_t ns_mgr_poll(struct ns_mgr *, int milli);
void ns_broadcast(struct ns_mgr *, ns_event_handler_t, void *, size_t);
struct ns_connection *ns_next(struct ns_mgr *, struct ns_connection *);
struct ns_connection *ns_add_sock(struct ns_mgr *, sock_t, ns_event_handler_t);
struct ns_connection *ns_bind(struct ns_mgr *, const char *, ns_event_handler_t);
struct ns_connection *ns_connect(struct ns_mgr *, const char *, ns_event_handler_t);
const char *ns_set_ssl(struct ns_connection *nc, const char *, const char *);
int ns_send(struct ns_connection *, const void *buf, int len);
int ns_printf(struct ns_connection *, const char *fmt, ...);
int ns_vprintf(struct ns_connection *, const char *fmt, va_list ap);
/* Utility functions */
void *ns_start_thread(void *(*f)(void *), void *p);
int ns_socketpair(sock_t [2]);
int ns_socketpair2(sock_t [2], int sock_type); /* SOCK_STREAM or SOCK_DGRAM */
void ns_set_close_on_exec(sock_t);
void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags);
int ns_hexdump(const void *buf, int len, char *dst, int dst_len);
int ns_avprintf(char **buf, size_t size, const char *fmt, va_list ap);
int ns_resolve(const char *domain_name, char *ip_addr_buf, size_t buf_len);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NS_SKELETON_HEADER_INCLUDED */
/*
* Copyright (c) 2004-2013 Sergey Lyubka <valenok@gmail.com>
* Copyright (c) 2013 Cesanta Software Limited
* All rights reserved
*
* This library is dual-licensed: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. For the terms of this
* license, see <http: *www.gnu.org/licenses/>.
*
* You are free to use this library under the terms of the GNU General
* Public License, 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.
*
* Alternatively, you can license this library under a commercial
* license, as set out in <http://cesanta.com/products.html>.
*/
#ifndef FROZEN_HEADER_INCLUDED
#define FROZEN_HEADER_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <stdarg.h>
enum json_type {
JSON_TYPE_EOF = 0, /* End of parsed tokens marker */
JSON_TYPE_STRING = 1,
JSON_TYPE_NUMBER = 2,
JSON_TYPE_OBJECT = 3,
JSON_TYPE_TRUE = 4,
JSON_TYPE_FALSE = 5,
JSON_TYPE_NULL = 6,
JSON_TYPE_ARRAY = 7
};
struct json_token {
const char *ptr; /* Points to the beginning of the token */
int len; /* Token length */
int num_desc; /* For arrays and object, total number of descendants */
enum json_type type; /* Type of the token, possible values above */
};
/* Error codes */
#define JSON_STRING_INVALID -1
#define JSON_STRING_INCOMPLETE -2
#define JSON_TOKEN_ARRAY_TOO_SMALL -3
int parse_json(const char *json_string, int json_string_length,
struct json_token *tokens_array, int size_of_tokens_array);
struct json_token *parse_json2(const char *json_string, int string_length);
struct json_token *find_json_token(struct json_token *toks, const char *path);
int json_emit_long(char *buf, int buf_len, long value);
int json_emit_double(char *buf, int buf_len, double value);
int json_emit_quoted_str(char *buf, int buf_len, const char *str, int len);
int json_emit_unquoted_str(char *buf, int buf_len, const char *str, int len);
int json_emit(char *buf, int buf_len, const char *fmt, ...);
int json_emit_va(char *buf, int buf_len, const char *fmt, va_list);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* FROZEN_HEADER_INCLUDED */
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#if !defined(NS_SHA1_HEADER_INCLUDED) && !defined(NS_DISABLE_SHA1)
#define NS_SHA1_HEADER_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct {
uint32_t state[5];
uint32_t count[2];
unsigned char buffer[64];
} SHA1_CTX;
void SHA1Init(SHA1_CTX *);
void SHA1Update(SHA1_CTX *, const unsigned char *data, uint32_t len);
void SHA1Final(unsigned char digest[20], SHA1_CTX *);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NS_SHA1_HEADER_INCLUDED */
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#ifndef NS_UTIL_HEADER_DEFINED
#define NS_UTIL_HEADER_DEFINED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef MAX_PATH_SIZE
#define MAX_PATH_SIZE 500
#endif
const char *ns_skip(const char *, const char *, const char *, struct ns_str *);
int ns_ncasecmp(const char *s1, const char *s2, size_t len);
int ns_vcmp(const struct ns_str *str2, const char *str1);
int ns_vcasecmp(const struct ns_str *str2, const char *str1);
void ns_base64_decode(const unsigned char *s, int len, char *dst);
void ns_base64_encode(const unsigned char *src, int src_len, char *dst);
int ns_stat(const char *path, ns_stat_t *st);
FILE *ns_fopen(const char *path, const char *mode);
int ns_open(const char *path, int flag, int mode);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NS_UTIL_HEADER_DEFINED */
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#ifndef NS_HTTP_HEADER_DEFINED
#define NS_HTTP_HEADER_DEFINED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define NS_MAX_HTTP_HEADERS 40
#define NS_MAX_HTTP_REQUEST_SIZE 8192
#define NS_MAX_PATH 1024
struct http_message {
struct ns_str message; /* Whole message: request line + headers + body */
/* HTTP Request line (or HTTP response line) */
struct ns_str method; /* "GET" */
struct ns_str uri; /* "/my_file.html" */
struct ns_str proto; /* "HTTP/1.1" */
/* Headers */
struct ns_str header_names[NS_MAX_HTTP_HEADERS];
struct ns_str header_values[NS_MAX_HTTP_HEADERS];
/* Message body */
struct ns_str body; /* Zero-length for requests with no body */
};
struct websocket_message {
unsigned char *data;
size_t size;
unsigned char flags;
};
/* HTTP and websocket events. void *ev_data is described in a comment. */
#define NS_HTTP_REQUEST 100 /* struct http_message * */
#define NS_HTTP_REPLY 101 /* struct http_message * */
#define NS_WEBSOCKET_HANDSHAKE_REQUEST 111 /* NULL */
#define NS_WEBSOCKET_HANDSHAKE_DONE 112 /* NULL */
#define NS_WEBSOCKET_FRAME 113 /* struct websocket_message * */
void ns_set_protocol_http_websocket(struct ns_connection *);
void ns_send_websocket_handshake(struct ns_connection *, const char *,
const char *);
void ns_send_websocket_frame(struct ns_connection *, int, const void *, size_t);
void ns_send_websocket_framev(struct ns_connection *, int, const struct ns_str *, int);
void ns_printf_websocket_frame(struct ns_connection *, int, const char *, ...);
/* Websocket opcodes, from http://tools.ietf.org/html/rfc6455 */
#define WEBSOCKET_OP_CONTINUE 0
#define WEBSOCKET_OP_TEXT 1
#define WEBSOCKET_OP_BINARY 2
#define WEBSOCKET_OP_CLOSE 8
#define WEBSOCKET_OP_PING 9
#define WEBSOCKET_OP_PONG 10
/* Utility functions */
struct ns_str *ns_get_http_header(struct http_message *, const char *);
int ns_parse_http(const char *s, int n, struct http_message *req);
int ns_get_http_var(const struct ns_str *, const char *, char *dst, size_t);
struct ns_serve_http_opts {
const char *document_root;
};
void ns_serve_http(struct ns_connection *, struct http_message *,
struct ns_serve_http_opts);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NS_HTTP_HEADER_DEFINED */
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#ifndef NS_JSON_RPC_HEADER_DEFINED
#define NS_JSON_RPC_HEADER_DEFINED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* JSON-RPC standard error codes */
#define JSON_RPC_PARSE_ERROR (-32700)
#define JSON_RPC_INVALID_REQUEST_ERROR (-32600)
#define JSON_RPC_METHOD_NOT_FOUND_ERROR (-32601)
#define JSON_RPC_INVALID_PARAMS_ERROR (-32602)
#define JSON_RPC_INTERNAL_ERROR (-32603)
#define JSON_RPC_SERVER_ERROR (-32000)
struct ns_rpc_request {
struct json_token *message; /* Whole RPC message */
struct json_token *id; /* Message ID */
struct json_token *method; /* Method name */
struct json_token *params; /* Method params */
};
struct ns_rpc_reply {
struct json_token *message; /* Whole RPC message */
struct json_token *id; /* Message ID */
struct json_token *result; /* Remote call result */
};
struct ns_rpc_error {
struct json_token *message; /* Whole RPC message */
struct json_token *id; /* Message ID */
struct json_token *error_code; /* error.code */
struct json_token *error_message; /* error.message */
struct json_token *error_data; /* error.data, can be NULL */
};
int ns_rpc_parse_request(const char *buf, int len, struct ns_rpc_request *req);
int ns_rpc_parse_reply(const char *buf, int len,
struct json_token *toks, int max_toks,
struct ns_rpc_reply *, struct ns_rpc_error *);
int ns_rpc_create_request(char *, int, const char *method,
const char *id, const char *params_fmt, ...);
int ns_rpc_create_reply(char *, int, const struct ns_rpc_request *req,
const char *result_fmt, ...);
int ns_rpc_create_error(char *, int, struct ns_rpc_request *req,
int, const char *, const char *, ...);
int ns_rpc_create_std_error(char *, int, struct ns_rpc_request *, int code);
typedef int (*ns_rpc_handler_t)(char *buf, int len, struct ns_rpc_request *);
int ns_rpc_dispatch(const char *buf, int, char *dst, int dst_len,
const char **methods, ns_rpc_handler_t *handlers);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NS_JSON_RPC_HEADER_DEFINED */
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