1 /*****************************************************************************
2 * net.c: Network related functions
3 *****************************************************************************
4 * Copyright (C) 2007 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea at videolan tod org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
35 #include <vlc_common.h>
36 #include <vlc_network.h>
39 #include <lua.h> /* Low level lua C API */
40 #include <lauxlib.h> /* Higher level C API */
41 #include <lualib.h> /* Lua libs */
45 /*****************************************************************************
47 *****************************************************************************/
48 int vlclua_url_parse( lua_State *L )
50 const char *psz_url = luaL_checkstring( L, 1 );
51 const char *psz_option = luaL_optstring( L, 2, NULL );
54 vlc_UrlParse( &url, psz_url, psz_option?*psz_option:0 );
57 lua_pushstring( L, url.psz_protocol );
58 lua_setfield( L, -2, "protocol" );
59 lua_pushstring( L, url.psz_username );
60 lua_setfield( L, -2, "username" );
61 lua_pushstring( L, url.psz_password );
62 lua_setfield( L, -2, "password" );
63 lua_pushstring( L, url.psz_host );
64 lua_setfield( L, -2, "host" );
65 lua_pushinteger( L, url.i_port );
66 lua_setfield( L, -2, "port" );
67 lua_pushstring( L, url.psz_path );
68 lua_setfield( L, -2, "path" );
69 lua_pushstring( L, url.psz_option );
70 lua_setfield( L, -2, "option" );
77 int vlclua_net_listen_tcp( lua_State *L )
79 vlc_object_t *p_this = vlclua_get_this( L );
80 const char *psz_host = luaL_checkstring( L, 1 );
81 int i_port = luaL_checkint( L, 2 );
82 int *pi_fd = net_ListenTCP( p_this, psz_host, i_port );
84 return luaL_error( L, "Cannot listen on %s:%d", psz_host, i_port );
85 lua_pushlightuserdata( L, pi_fd );
89 int vlclua_net_listen_close( lua_State *L )
91 int *pi_fd = (int*)luaL_checklightuserdata( L, 1 );
92 net_ListenClose( pi_fd );
96 int vlclua_net_accept( lua_State *L )
98 vlc_object_t *p_this = vlclua_get_this( L );
99 int *pi_fd = (int*)luaL_checklightuserdata( L, 1 );
100 mtime_t i_wait = luaL_optint( L, 2, -1 ); /* default to block */
101 int i_fd = net_Accept( p_this, pi_fd, i_wait );
102 lua_pushinteger( L, i_fd );
106 int vlclua_net_close( lua_State *L )
108 int i_fd = luaL_checkint( L, 1 );
113 int vlclua_net_send( lua_State *L )
115 int i_fd = luaL_checkint( L, 1 );
117 const char *psz_buffer = luaL_checklstring( L, 2, &i_len );
118 i_len = luaL_optint( L, 3, i_len );
119 i_len = send( i_fd, psz_buffer, i_len, 0 );
120 lua_pushinteger( L, i_len );
124 int vlclua_net_recv( lua_State *L )
126 int i_fd = luaL_checkint( L, 1 );
127 size_t i_len = luaL_optint( L, 2, 1 );
128 char psz_buffer[i_len];
129 i_len = recv( i_fd, psz_buffer, i_len, 0 );
130 lua_pushlstring( L, psz_buffer, i_len );
134 int vlclua_net_select( lua_State *L )
137 size_t i_nfds = luaL_checkint( L, 1 );
138 fd_set *fds_read = (fd_set*)luaL_checkuserdata( L, 2, sizeof( fd_set ) );
139 fd_set *fds_write = (fd_set*)luaL_checkuserdata( L, 3, sizeof( fd_set ) );
140 double f_timeout = luaL_checknumber( L, 4 );
141 struct timeval timeout;
144 if( i_nfds > FD_SETSIZE )
147 timeout.tv_sec = (int)f_timeout;
148 timeout.tv_usec = (int)(1e6*(f_timeout-(double)((int)f_timeout)));
149 i_ret = select( i_nfds, fds_read, fds_write, 0, &timeout );
150 lua_pushinteger( L, i_ret );
151 lua_pushinteger( L, (double)timeout.tv_sec+((double)timeout.tv_usec)/1e-6 );
155 int vlclua_fd_set_new( lua_State *L )
157 fd_set *fds = (fd_set*)lua_newuserdata( L, sizeof( fd_set ) );
162 int vlclua_fd_clr( lua_State *L )
164 fd_set *fds = (fd_set*)luaL_checkuserdata( L, 1, sizeof( fd_set ) );
165 int i_fd = luaL_checkint( L, 2 );
169 int vlclua_fd_isset( lua_State *L )
171 fd_set *fds = (fd_set*)luaL_checkuserdata( L, 1, sizeof( fd_set ) );
172 int i_fd = luaL_checkint( L, 2 );
173 lua_pushboolean( L, FD_ISSET( i_fd, fds ) );
176 int vlclua_fd_set( lua_State *L )
178 fd_set *fds = (fd_set*)luaL_checkuserdata( L, 1, sizeof( fd_set ) );
179 size_t i_fd = luaL_checkint( L, 2 );
180 /* FIXME: we should really use poll() instead here, but that breaks the
181 * VLC/LUA API. On Windows, overflow protection is built-in FD_SET, not
182 * on POSIX. In both cases, run-time behavior will however be wrong. */
184 if( i_fd < FD_SETSIZE )
189 int vlclua_fd_zero( lua_State *L )
191 fd_set *fds = (fd_set*)luaL_checkuserdata( L, 1, sizeof( fd_set ) );
197 int vlclua_fd_open( lua_State *L )
202 int vlclua_fd_write( lua_State *L )
204 int i_fd = luaL_checkint( L, 1 );
207 const char *psz_buffer = luaL_checklstring( L, 2, &i_len );
208 i_len = luaL_optint( L, 3, i_len );
209 i_ret = write( i_fd, psz_buffer, i_len );
210 lua_pushinteger( L, i_ret );
214 int vlclua_fd_read( lua_State *L )
216 int i_fd = luaL_checkint( L, 1 );
217 size_t i_len = luaL_optint( L, 2, 1 );
218 char psz_buffer[i_len];
219 i_len = read( i_fd, psz_buffer, i_len );
220 lua_pushlstring( L, psz_buffer, i_len );
224 int vlclua_stat( lua_State *L )
226 #ifdef HAVE_SYS_STAT_H
227 const char *psz_path = luaL_checkstring( L, 1 );
229 if( utf8_stat( psz_path, &s ) )
231 //return luaL_error( L, "Couldn't stat %s.", psz_path );
233 if( S_ISREG( s.st_mode ) )
234 lua_pushstring( L, "file" );
235 else if( S_ISDIR( s.st_mode ) )
236 lua_pushstring( L, "dir" );
238 else if( S_ISCHR( s.st_mode ) )
239 lua_pushstring( L, "character device" );
242 else if( S_ISBLK( s.st_mode ) )
243 lua_pushstring( L, "block device" );
246 else if( S_ISFIFO( s.st_mode ) )
247 lua_pushstring( L, "fifo" );
250 else if( S_ISLNK( s.st_mode ) )
251 lua_pushstring( L, "symbolic link" );
254 else if( S_ISSOCK( s.st_mode ) )
255 lua_pushstring( L, "socket" );
258 lua_pushstring( L, "unknown" );
259 lua_setfield( L, -2, "type" );
260 lua_pushinteger( L, s.st_mode );
261 lua_setfield( L, -2, "mode" );
262 lua_pushinteger( L, s.st_uid );
263 lua_setfield( L, -2, "uid" );
264 lua_pushinteger( L, s.st_gid );
265 lua_setfield( L, -2, "gid" );
266 lua_pushinteger( L, s.st_size );
267 lua_setfield( L, -2, "size" );
268 lua_pushinteger( L, s.st_atime );
269 lua_setfield( L, -2, "access_time" );
270 lua_pushinteger( L, s.st_mtime );
271 lua_setfield( L, -2, "modification_time" );
272 lua_pushinteger( L, s.st_ctime );
273 lua_setfield( L, -2, "creation_time" );
276 # warning "Woops, looks like we don't have stat on your platform"
277 return luaL_error( L, "System is missing <sys/stat.h>" );
281 int vlclua_opendir( lua_State *L )
283 const char *psz_dir = luaL_checkstring( L, 1 );
287 if( ( p_dir = utf8_opendir( psz_dir ) ) == NULL )
288 return luaL_error( L, "cannot open directory `%s'.", psz_dir );
293 char *psz_filename = utf8_readdir( p_dir );
294 if( !psz_filename ) break;
296 lua_pushstring( L, psz_filename );
297 lua_rawseti( L, -2, i );
298 free( psz_filename );