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... */ 32 typedef struct sockaddr SA; 33 34 /*=========================================================================*\ 35 * Functions bellow implement a comfortable platform independent 36 * interface to sockets 37 \*=========================================================================*/ 38 int socket_open(void); 39 int socket_close(void); 40 void socket_destroy(p_socket ps); 41 void socket_shutdown(p_socket ps, int how); 42 int socket_sendto(p_socket ps, const char *data, size_t count, 43 size_t *sent, SA *addr, socklen_t addr_len, p_timeout tm); 44 int socket_recvfrom(p_socket ps, char *data, size_t count, 45 size_t *got, SA *addr, socklen_t *addr_len, p_timeout tm); 46 47 void socket_setnonblocking(p_socket ps); 48 void socket_setblocking(p_socket ps); 49 50 int socket_waitfd(p_socket ps, int sw, p_timeout tm); 51 int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds, 52 p_timeout tm); 53 54 int socket_connect(p_socket ps, SA *addr, socklen_t addr_len, p_timeout tm); 55 int socket_create(p_socket ps, int domain, int type, int protocol); 56 int socket_bind(p_socket ps, SA *addr, socklen_t addr_len); 57 int socket_listen(p_socket ps, int backlog); 58 int socket_accept(p_socket ps, p_socket pa, SA *addr, 59 socklen_t *addr_len, p_timeout tm); 60 61 const char *socket_hoststrerror(int err); 62 const char *socket_gaistrerror(int err); 63 const char *socket_strerror(int err); 64 65 /* these are perfect to use with the io abstraction module 66 and the buffered input module */ 67 int socket_send(p_socket ps, const char *data, size_t count, 68 size_t *sent, p_timeout tm); 69 int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm); 70 int socket_write(p_socket ps, const char *data, size_t count, 71 size_t *sent, p_timeout tm); 72 int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm); 73 const char *socket_ioerror(p_socket ps, int err); 74 75 int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp); 76 int socket_gethostbyname(const char *addr, struct hostent **hp); 77 78 #endif /* SOCKET_H */ 79