1#ifndef SOCKET_H
2#define SOCKET_H
3/*=========================================================================*\
4* Socket compatibilization module
5* LuaSocket toolkit
6*
7* BSD Sockets and WinSock are similar, but there are a few irritating
8* differences. Also, not all *nix platforms behave the same. This module
9* (and the associated usocket.h and wsocket.h) factor these differences and
10* creates a interface compatible with the io.h module.
11\*=========================================================================*/
12#include "io.h"
13
14/*=========================================================================*\
15* Platform specific compatibilization
16\*=========================================================================*/
17#ifdef _WIN32
18#include "wsocket.h"
19#else
20#include "usocket.h"
21#endif
22
23/*=========================================================================*\
24* The connect and accept functions accept a timeout and their
25* implementations are somewhat complicated. We chose to move
26* the timeout control into this module for these functions in
27* order to simplify the modules that use them.
28\*=========================================================================*/
29#include "timeout.h"
30
31/* we are lazy... */
32typedef struct sockaddr SA;
33
34/*=========================================================================*\
35* Functions bellow implement a comfortable platform independent
36* interface to sockets
37\*=========================================================================*/
38int socket_open(void);
39int socket_close(void);
40void socket_destroy(p_socket ps);
41void socket_shutdown(p_socket ps, int how);
42int socket_sendto(p_socket ps, const char *data, size_t count,
43 size_t *sent, SA *addr, socklen_t addr_len, p_timeout tm);
44int socket_recvfrom(p_socket ps, char *data, size_t count,
45 size_t *got, SA *addr, socklen_t *addr_len, p_timeout tm);
46
47void socket_setnonblocking(p_socket ps);
48void socket_setblocking(p_socket ps);
49
50int socket_waitfd(p_socket ps, int sw, p_timeout tm);
51int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
52 p_timeout tm);
53
54int socket_connect(p_socket ps, SA *addr, socklen_t addr_len, p_timeout tm);
55int socket_create(p_socket ps, int domain, int type, int protocol);
56int socket_bind(p_socket ps, SA *addr, socklen_t addr_len);
57int socket_listen(p_socket ps, int backlog);
58int socket_accept(p_socket ps, p_socket pa, SA *addr,
59 socklen_t *addr_len, p_timeout tm);
60
61const char *socket_hoststrerror(int err);
62const char *socket_gaistrerror(int err);
63const char *socket_strerror(int err);
64
65/* these are perfect to use with the io abstraction module
66 and the buffered input module */
67int socket_send(p_socket ps, const char *data, size_t count,
68 size_t *sent, p_timeout tm);
69int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm);
70int socket_write(p_socket ps, const char *data, size_t count,
71 size_t *sent, p_timeout tm);
72int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm);
73const char *socket_ioerror(p_socket ps, int err);
74
75int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp);
76int socket_gethostbyname(const char *addr, struct hostent **hp);
77
78#endif /* SOCKET_H */
79