net.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:12k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * net.c: Network related functions
- *****************************************************************************
- * Copyright (C) 2007-2008 the VideoLAN team
- * $Id: dcf21664632fdbbff14972e38c7e3ac98681409a $
- *
- * Authors: Antoine Cellerier <dionoea at videolan tod org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifndef _GNU_SOURCE
- # define _GNU_SOURCE
- #endif
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_network.h>
- #include <vlc_url.h>
- #include <lua.h> /* Low level lua C API */
- #include <lauxlib.h> /* Higher level C API */
- #include "../vlc.h"
- #include "../libs.h"
- /*****************************************************************************
- *
- *****************************************************************************/
- static int vlclua_url_parse( lua_State *L )
- {
- const char *psz_url = luaL_checkstring( L, 1 );
- const char *psz_option = luaL_optstring( L, 2, NULL );
- vlc_url_t url;
- vlc_UrlParse( &url, psz_url, psz_option?*psz_option:0 );
- lua_newtable( L );
- lua_pushstring( L, url.psz_protocol );
- lua_setfield( L, -2, "protocol" );
- lua_pushstring( L, url.psz_username );
- lua_setfield( L, -2, "username" );
- lua_pushstring( L, url.psz_password );
- lua_setfield( L, -2, "password" );
- lua_pushstring( L, url.psz_host );
- lua_setfield( L, -2, "host" );
- lua_pushinteger( L, url.i_port );
- lua_setfield( L, -2, "port" );
- lua_pushstring( L, url.psz_path );
- lua_setfield( L, -2, "path" );
- lua_pushstring( L, url.psz_option );
- lua_setfield( L, -2, "option" );
- vlc_UrlClean( &url );
- return 1;
- }
- /*****************************************************************************
- * Net listen
- *****************************************************************************/
- static int vlclua_net_listen_close( lua_State * );
- static int vlclua_net_accept( lua_State * );
- static const luaL_Reg vlclua_net_listen_reg[] = {
- { "accept", vlclua_net_accept },
- { NULL, NULL }
- };
- static int vlclua_net_listen_tcp( lua_State *L )
- {
- vlc_object_t *p_this = vlclua_get_this( L );
- const char *psz_host = luaL_checkstring( L, 1 );
- int i_port = luaL_checkint( L, 2 );
- int *pi_fd = net_ListenTCP( p_this, psz_host, i_port );
- if( pi_fd == NULL )
- return luaL_error( L, "Cannot listen on %s:%d", psz_host, i_port );
- int **ppi_fd = lua_newuserdata( L, sizeof( int * ) );
- *ppi_fd = pi_fd;
- if( luaL_newmetatable( L, "net_listen" ) )
- {
- lua_newtable( L );
- luaL_register( L, NULL, vlclua_net_listen_reg );
- lua_setfield( L, -2, "__index" );
- lua_pushcfunction( L, vlclua_net_listen_close );
- lua_setfield( L, -2, "__gc" );
- }
- lua_setmetatable( L, -2 );
- return 1;
- }
- static int vlclua_net_listen_close( lua_State *L )
- {
- int **ppi_fd = (int**)luaL_checkudata( L, 1, "net_listen" );
- net_ListenClose( *ppi_fd );
- return 0;
- }
- static int vlclua_net_accept( lua_State *L )
- {
- vlc_object_t *p_this = vlclua_get_this( L );
- int **ppi_fd = (int**)luaL_checkudata( L, 1, "net_listen" );
- mtime_t i_wait = luaL_optint( L, 2, -1 ); /* default to block */
- int i_fd = net_Accept( p_this, *ppi_fd, i_wait );
- lua_pushinteger( L, i_fd );
- return 1;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- static int vlclua_net_close( lua_State *L )
- {
- int i_fd = luaL_checkint( L, 1 );
- net_Close( i_fd );
- return 0;
- }
- static int vlclua_net_send( lua_State *L )
- {
- int i_fd = luaL_checkint( L, 1 );
- size_t i_len;
- const char *psz_buffer = luaL_checklstring( L, 2, &i_len );
- i_len = luaL_optint( L, 3, i_len );
- i_len = send( i_fd, psz_buffer, i_len, 0 );
- lua_pushinteger( L, i_len );
- return 1;
- }
- static int vlclua_net_recv( lua_State *L )
- {
- int i_fd = luaL_checkint( L, 1 );
- size_t i_len = luaL_optint( L, 2, 1 );
- char psz_buffer[i_len];
- i_len = recv( i_fd, psz_buffer, i_len, 0 );
- lua_pushlstring( L, psz_buffer, i_len );
- return 1;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- static int vlclua_net_select( lua_State *L )
- {
- int i_ret;
- size_t i_nfds = luaL_checkint( L, 1 );
- fd_set *fds_read = (fd_set*)luaL_checkudata( L, 2, "fd_set" );
- fd_set *fds_write = (fd_set*)luaL_checkudata( L, 3, "fd_set" );
- double f_timeout = luaL_checknumber( L, 4 );
- struct timeval timeout;
- #ifndef WIN32
- if( i_nfds > FD_SETSIZE )
- i_nfds = FD_SETSIZE;
- #endif
- timeout.tv_sec = (int)f_timeout;
- timeout.tv_usec = (int)(1e6*(f_timeout-(double)((int)f_timeout)));
- i_ret = select( i_nfds, fds_read, fds_write, 0, &timeout );
- lua_pushinteger( L, i_ret );
- lua_pushinteger( L, (double)timeout.tv_sec+((double)timeout.tv_usec)/1e-6 );
- return 2;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- static int vlclua_fd_clr( lua_State * );
- static int vlclua_fd_isset( lua_State * );
- static int vlclua_fd_set( lua_State * );
- static int vlclua_fd_zero( lua_State * );
- static const luaL_Reg vlclua_fd_set_reg[] = {
- { "clr", vlclua_fd_clr },
- { "isset", vlclua_fd_isset },
- { "set", vlclua_fd_set },
- { "zero", vlclua_fd_zero },
- { NULL, NULL }
- };
- static int vlclua_fd_set_new( lua_State *L )
- {
- fd_set *fds = (fd_set*)lua_newuserdata( L, sizeof( fd_set ) );
- FD_ZERO( fds );
- if( luaL_newmetatable( L, "fd_set" ) )
- {
- lua_newtable( L );
- luaL_register( L, NULL, vlclua_fd_set_reg );
- lua_setfield( L, -2, "__index" );
- }
- lua_setmetatable( L, -2 );
- return 1;
- }
- static int vlclua_fd_clr( lua_State *L )
- {
- fd_set *fds = (fd_set*)luaL_checkudata( L, 1, "fd_set" );
- int i_fd = luaL_checkint( L, 2 );
- FD_CLR( i_fd, fds );
- return 0;
- }
- static int vlclua_fd_isset( lua_State *L )
- {
- fd_set *fds = (fd_set*)luaL_checkudata( L, 1, "fd_set" );
- int i_fd = luaL_checkint( L, 2 );
- lua_pushboolean( L, FD_ISSET( i_fd, fds ) );
- return 1;
- }
- static int vlclua_fd_set( lua_State *L )
- {
- fd_set *fds = (fd_set*)luaL_checkudata( L, 1, "fd_set" );
- size_t i_fd = luaL_checkint( L, 2 );
- /* FIXME: we should really use poll() instead here, but that breaks the
- * VLC/LUA API. On Windows, overflow protection is built-in FD_SET, not
- * on POSIX. In both cases, run-time behavior will however be wrong. */
- #ifndef WIN32
- if( i_fd < FD_SETSIZE )
- #endif
- FD_SET( i_fd, fds );
- return 0;
- }
- static int vlclua_fd_zero( lua_State *L )
- {
- fd_set *fds = (fd_set*)luaL_checkudata( L, 1, "fd_set" );
- FD_ZERO( fds );
- return 0;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- /*
- static int vlclua_fd_open( lua_State *L )
- {
- }
- */
- static int vlclua_fd_write( lua_State *L )
- {
- int i_fd = luaL_checkint( L, 1 );
- size_t i_len;
- ssize_t i_ret;
- const char *psz_buffer = luaL_checklstring( L, 2, &i_len );
- i_len = luaL_optint( L, 3, i_len );
- i_ret = write( i_fd, psz_buffer, i_len );
- lua_pushinteger( L, i_ret );
- return 1;
- }
- static int vlclua_fd_read( lua_State *L )
- {
- int i_fd = luaL_checkint( L, 1 );
- size_t i_len = luaL_optint( L, 2, 1 );
- char psz_buffer[i_len];
- i_len = read( i_fd, psz_buffer, i_len );
- lua_pushlstring( L, psz_buffer, i_len );
- return 1;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- static int vlclua_stat( lua_State *L )
- {
- #ifdef HAVE_SYS_STAT_H
- const char *psz_path = luaL_checkstring( L, 1 );
- struct stat s;
- if( utf8_stat( psz_path, &s ) )
- return 0;
- //return luaL_error( L, "Couldn't stat %s.", psz_path );
- lua_newtable( L );
- if( S_ISREG( s.st_mode ) )
- lua_pushstring( L, "file" );
- else if( S_ISDIR( s.st_mode ) )
- lua_pushstring( L, "dir" );
- #ifdef S_ISCHR
- else if( S_ISCHR( s.st_mode ) )
- lua_pushstring( L, "character device" );
- #endif
- #ifdef S_ISBLK
- else if( S_ISBLK( s.st_mode ) )
- lua_pushstring( L, "block device" );
- #endif
- #ifdef S_ISFIFO
- else if( S_ISFIFO( s.st_mode ) )
- lua_pushstring( L, "fifo" );
- #endif
- #ifdef S_ISLNK
- else if( S_ISLNK( s.st_mode ) )
- lua_pushstring( L, "symbolic link" );
- #endif
- #ifdef S_ISSOCK
- else if( S_ISSOCK( s.st_mode ) )
- lua_pushstring( L, "socket" );
- #endif
- else
- lua_pushstring( L, "unknown" );
- lua_setfield( L, -2, "type" );
- lua_pushinteger( L, s.st_mode );
- lua_setfield( L, -2, "mode" );
- lua_pushinteger( L, s.st_uid );
- lua_setfield( L, -2, "uid" );
- lua_pushinteger( L, s.st_gid );
- lua_setfield( L, -2, "gid" );
- lua_pushinteger( L, s.st_size );
- lua_setfield( L, -2, "size" );
- lua_pushinteger( L, s.st_atime );
- lua_setfield( L, -2, "access_time" );
- lua_pushinteger( L, s.st_mtime );
- lua_setfield( L, -2, "modification_time" );
- lua_pushinteger( L, s.st_ctime );
- lua_setfield( L, -2, "creation_time" );
- return 1;
- #else
- # warning "Woops, looks like we don't have stat on your platform"
- return luaL_error( L, "System is missing <sys/stat.h>" );
- #endif
- }
- static int vlclua_opendir( lua_State *L )
- {
- const char *psz_dir = luaL_checkstring( L, 1 );
- DIR *p_dir;
- int i = 0;
- if( ( p_dir = utf8_opendir( psz_dir ) ) == NULL )
- return luaL_error( L, "cannot open directory `%s'.", psz_dir );
- lua_newtable( L );
- for( ;; )
- {
- char *psz_filename = utf8_readdir( p_dir );
- if( !psz_filename ) break;
- i++;
- lua_pushstring( L, psz_filename );
- lua_rawseti( L, -2, i );
- free( psz_filename );
- }
- closedir( p_dir );
- return 1;
- }
- /*****************************************************************************
- *
- *****************************************************************************/
- static const luaL_Reg vlclua_net_reg[] = {
- { "url_parse", vlclua_url_parse },
- { "listen_tcp", vlclua_net_listen_tcp },
- { "close", vlclua_net_close },
- { "send", vlclua_net_send },
- { "recv", vlclua_net_recv },
- { "select", vlclua_net_select },
- { "fd_set_new", vlclua_fd_set_new },
- { "read", vlclua_fd_read },
- { "write", vlclua_fd_write },
- { "stat", vlclua_stat }, /* Not really "net" */
- { "opendir", vlclua_opendir }, /* Not really "net" */
- { NULL, NULL }
- };
- void luaopen_net( lua_State *L )
- {
- lua_newtable( L );
- luaL_register( L, NULL, vlclua_net_reg );
- lua_setfield( L, -2, "net" );
- }