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Diffstat (limited to 'Build/source/texk/web2c/luatexdir/luasocket/src/unix.c')
-rw-r--r--Build/source/texk/web2c/luatexdir/luasocket/src/unix.c358
1 files changed, 44 insertions, 314 deletions
diff --git a/Build/source/texk/web2c/luatexdir/luasocket/src/unix.c b/Build/source/texk/web2c/luatexdir/luasocket/src/unix.c
index 73e7b69544c..dbc87100da3 100644
--- a/Build/source/texk/web2c/luatexdir/luasocket/src/unix.c
+++ b/Build/source/texk/web2c/luatexdir/luasocket/src/unix.c
@@ -1,340 +1,70 @@
/*=========================================================================*\
-* Unix domain socket
+* Unix domain socket
* LuaSocket toolkit
\*=========================================================================*/
-#include <string.h>
-
#include "lua.h"
#include "lauxlib.h"
-#include "auxiliar.h"
-#include "socket.h"
-#include "options.h"
-#include "unix.h"
-#include <sys/un.h>
-
-/*=========================================================================*\
-* Internal function prototypes
-\*=========================================================================*/
-static int global_create(lua_State *L);
-static int meth_connect(lua_State *L);
-static int meth_listen(lua_State *L);
-static int meth_bind(lua_State *L);
-static int meth_send(lua_State *L);
-static int meth_shutdown(lua_State *L);
-static int meth_receive(lua_State *L);
-static int meth_accept(lua_State *L);
-static int meth_close(lua_State *L);
-static int meth_setoption(lua_State *L);
-static int meth_settimeout(lua_State *L);
-static int meth_getfd(lua_State *L);
-static int meth_setfd(lua_State *L);
-static int meth_dirty(lua_State *L);
-static int meth_getstats(lua_State *L);
-static int meth_setstats(lua_State *L);
-
-static const char *unix_tryconnect(p_unix un, const char *path);
-static const char *unix_trybind(p_unix un, const char *path);
-
-/* unix object methods */
-static luaL_Reg unix_methods[] = {
- {"__gc", meth_close},
- {"__tostring", auxiliar_tostring},
- {"accept", meth_accept},
- {"bind", meth_bind},
- {"close", meth_close},
- {"connect", meth_connect},
- {"dirty", meth_dirty},
- {"getfd", meth_getfd},
- {"getstats", meth_getstats},
- {"setstats", meth_setstats},
- {"listen", meth_listen},
- {"receive", meth_receive},
- {"send", meth_send},
- {"setfd", meth_setfd},
- {"setoption", meth_setoption},
- {"setpeername", meth_connect},
- {"setsockname", meth_bind},
- {"settimeout", meth_settimeout},
- {"shutdown", meth_shutdown},
- {NULL, NULL}
-};
-
-/* socket option handlers */
-static t_opt optset[] = {
- {"keepalive", opt_set_keepalive},
- {"reuseaddr", opt_set_reuseaddr},
- {"linger", opt_set_linger},
- {NULL, NULL}
-};
-
-/* our socket creation function */
-static luaL_Reg func[] = {
- {"unix", global_create},
- {NULL, NULL}
-};
-
-
-/*-------------------------------------------------------------------------*\
-* Initializes module
-\*-------------------------------------------------------------------------*/
-int luaopen_socket_unix(lua_State *L) {
- /* create classes */
- auxiliar_newclass(L, "unix{master}", unix_methods);
- auxiliar_newclass(L, "unix{client}", unix_methods);
- auxiliar_newclass(L, "unix{server}", unix_methods);
- /* create class groups */
- auxiliar_add2group(L, "unix{master}", "unix{any}");
- auxiliar_add2group(L, "unix{client}", "unix{any}");
- auxiliar_add2group(L, "unix{server}", "unix{any}");
- /* make sure the function ends up in the package table */
- luaL_openlib(L, "socket", func, 0);
- /* return the function instead of the 'socket' table */
- lua_pushstring(L, "unix");
- lua_gettable(L, -2);
- return 1;
-}
+#include "unixstream.h"
+#include "unixdgram.h"
-/*=========================================================================*\
-* Lua methods
-\*=========================================================================*/
/*-------------------------------------------------------------------------*\
-* Just call buffered IO methods
+* Modules and functions
\*-------------------------------------------------------------------------*/
-static int meth_send(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{client}", 1);
- return buffer_meth_send(L, &un->buf);
-}
-
-static int meth_receive(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{client}", 1);
- return buffer_meth_receive(L, &un->buf);
-}
-
-static int meth_getstats(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{client}", 1);
- return buffer_meth_getstats(L, &un->buf);
-}
-
-static int meth_setstats(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{client}", 1);
- return buffer_meth_setstats(L, &un->buf);
-}
-
-/*-------------------------------------------------------------------------*\
-* Just call option handler
-\*-------------------------------------------------------------------------*/
-static int meth_setoption(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- return opt_meth_setoption(L, optset, &un->sock);
-}
-
-/*-------------------------------------------------------------------------*\
-* Select support methods
-\*-------------------------------------------------------------------------*/
-static int meth_getfd(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- lua_pushnumber(L, (int) un->sock);
- return 1;
-}
-
-/* this is very dangerous, but can be handy for those that are brave enough */
-static int meth_setfd(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- un->sock = (t_socket) luaL_checknumber(L, 2);
- return 0;
-}
+static const luaL_Reg mod[] = {
+ {"stream", unixstream_open},
+ {"dgram", unixdgram_open},
+ {NULL, NULL}
+};
-static int meth_dirty(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- lua_pushboolean(L, !buffer_isempty(&un->buf));
- return 1;
+static void add_alias(lua_State *L, int index, const char *name, const char *target)
+{
+ lua_getfield(L, index, target);
+ lua_setfield(L, index, name);
}
-/*-------------------------------------------------------------------------*\
-* Waits for and returns a client object attempting connection to the
-* server object
-\*-------------------------------------------------------------------------*/
-static int meth_accept(lua_State *L) {
- p_unix server = (p_unix) auxiliar_checkclass(L, "unix{server}", 1);
- p_timeout tm = timeout_markstart(&server->tm);
- t_socket sock;
- int err = socket_accept(&server->sock, &sock, NULL, NULL, tm);
- /* if successful, push client socket */
- if (err == IO_DONE) {
- p_unix clnt = (p_unix) lua_newuserdata(L, sizeof(t_unix));
- auxiliar_setclass(L, "unix{client}", -1);
- /* initialize structure fields */
- socket_setnonblocking(&sock);
- clnt->sock = sock;
- io_init(&clnt->io, (p_send)socket_send, (p_recv)socket_recv,
- (p_error) socket_ioerror, &clnt->sock);
- timeout_init(&clnt->tm, -1, -1);
- buffer_init(&clnt->buf, &clnt->io, &clnt->tm);
- return 1;
- } else {
- lua_pushnil(L);
- lua_pushstring(L, socket_strerror(err));
- return 2;
- }
-}
+static int compat_socket_unix_call(lua_State *L)
+{
+ /* Look up socket.unix.stream in the socket.unix table (which is the first
+ * argument). */
+ lua_getfield(L, 1, "stream");
-/*-------------------------------------------------------------------------*\
-* Binds an object to an address
-\*-------------------------------------------------------------------------*/
-static const char *unix_trybind(p_unix un, const char *path) {
- struct sockaddr_un local;
- size_t len = strlen(path);
- int err;
- if (len >= sizeof(local.sun_path)) return "path too long";
- memset(&local, 0, sizeof(local));
- strcpy(local.sun_path, path);
- local.sun_family = AF_UNIX;
-#ifdef UNIX_HAS_SUN_LEN
- local.sun_len = sizeof(local.sun_family) + sizeof(local.sun_len)
- + len + 1;
- err = socket_bind(&un->sock, (SA *) &local, local.sun_len);
+ /* Replace the stack entry for the socket.unix table with the
+ * socket.unix.stream function. */
+ lua_replace(L, 1);
-#else
- err = socket_bind(&un->sock, (SA *) &local,
- sizeof(local.sun_family) + len);
-#endif
- if (err != IO_DONE) socket_destroy(&un->sock);
- return socket_strerror(err);
-}
+ /* Call socket.unix.stream, passing along any arguments. */
+ int n = lua_gettop(L);
+ lua_call(L, n-1, LUA_MULTRET);
-static int meth_bind(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{master}", 1);
- const char *path = luaL_checkstring(L, 2);
- const char *err = unix_trybind(un, path);
- if (err) {
- lua_pushnil(L);
- lua_pushstring(L, err);
- return 2;
- }
- lua_pushnumber(L, 1);
- return 1;
+ /* Pass along the return values from socket.unix.stream. */
+ n = lua_gettop(L);
+ return n;
}
/*-------------------------------------------------------------------------*\
-* Turns a master unix object into a client object.
+* Initializes module
\*-------------------------------------------------------------------------*/
-static const char *unix_tryconnect(p_unix un, const char *path)
+int luaopen_socket_unix(lua_State *L)
{
- struct sockaddr_un remote;
- int err;
- size_t len = strlen(path);
- if (len >= sizeof(remote.sun_path)) return "path too long";
- memset(&remote, 0, sizeof(remote));
- strcpy(remote.sun_path, path);
- remote.sun_family = AF_UNIX;
- timeout_markstart(&un->tm);
-#ifdef UNIX_HAS_SUN_LEN
- remote.sun_len = sizeof(remote.sun_family) + sizeof(remote.sun_len)
- + len + 1;
- err = socket_connect(&un->sock, (SA *) &remote, remote.sun_len, &un->tm);
-#else
- err = socket_connect(&un->sock, (SA *) &remote,
- sizeof(remote.sun_family) + len, &un->tm);
-#endif
- if (err != IO_DONE) socket_destroy(&un->sock);
- return socket_strerror(err);
-}
+ int i;
+ lua_newtable(L);
+ int socket_unix_table = lua_gettop(L);
-static int meth_connect(lua_State *L)
-{
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{master}", 1);
- const char *path = luaL_checkstring(L, 2);
- const char *err = unix_tryconnect(un, path);
- if (err) {
- lua_pushnil(L);
- lua_pushstring(L, err);
- return 2;
- }
- /* turn master object into a client object */
- auxiliar_setclass(L, "unix{client}", 1);
- lua_pushnumber(L, 1);
- return 1;
-}
+ for (i = 0; mod[i].name; i++)
+ mod[i].func(L);
-/*-------------------------------------------------------------------------*\
-* Closes socket used by object
-\*-------------------------------------------------------------------------*/
-static int meth_close(lua_State *L)
-{
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- socket_destroy(&un->sock);
- lua_pushnumber(L, 1);
- return 1;
-}
+ /* Add backwards compatibility aliases "tcp" and "udp" for the "stream" and
+ * "dgram" functions. */
+ add_alias(L, socket_unix_table, "tcp", "stream");
+ add_alias(L, socket_unix_table, "udp", "dgram");
-/*-------------------------------------------------------------------------*\
-* Puts the sockt in listen mode
-\*-------------------------------------------------------------------------*/
-static int meth_listen(lua_State *L)
-{
- p_unix un = (p_unix) auxiliar_checkclass(L, "unix{master}", 1);
- int backlog = (int) luaL_optnumber(L, 2, 32);
- int err = socket_listen(&un->sock, backlog);
- if (err != IO_DONE) {
- lua_pushnil(L);
- lua_pushstring(L, socket_strerror(err));
- return 2;
- }
- /* turn master object into a server object */
- auxiliar_setclass(L, "unix{server}", 1);
- lua_pushnumber(L, 1);
- return 1;
-}
+ /* Add a backwards compatibility function and a metatable setup to call it
+ * for the old socket.unix() interface. */
+ lua_pushcfunction(L, compat_socket_unix_call);
+ lua_setfield(L, socket_unix_table, "__call");
+ lua_pushvalue(L, socket_unix_table);
+ lua_setmetatable(L, socket_unix_table);
-/*-------------------------------------------------------------------------*\
-* Shuts the connection down partially
-\*-------------------------------------------------------------------------*/
-static int meth_shutdown(lua_State *L)
-{
- /* SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2, so we can use method index directly */
- static const char* methods[] = { "receive", "send", "both", NULL };
- p_unix tcp = (p_unix) auxiliar_checkclass(L, "unix{client}", 1);
- int how = luaL_checkoption(L, 2, "both", methods);
- socket_shutdown(&tcp->sock, how);
- lua_pushnumber(L, 1);
return 1;
}
-
-/*-------------------------------------------------------------------------*\
-* Just call tm methods
-\*-------------------------------------------------------------------------*/
-static int meth_settimeout(lua_State *L) {
- p_unix un = (p_unix) auxiliar_checkgroup(L, "unix{any}", 1);
- return timeout_meth_settimeout(L, &un->tm);
-}
-
-/*=========================================================================*\
-* Library functions
-\*=========================================================================*/
-/*-------------------------------------------------------------------------*\
-* Creates a master unix object
-\*-------------------------------------------------------------------------*/
-static int global_create(lua_State *L) {
- t_socket sock;
- int err = socket_create(&sock, AF_UNIX, SOCK_STREAM, 0);
- /* try to allocate a system socket */
- if (err == IO_DONE) {
- /* allocate unix object */
- p_unix un = (p_unix) lua_newuserdata(L, sizeof(t_unix));
- /* set its type as master object */
- auxiliar_setclass(L, "unix{master}", -1);
- /* initialize remaining structure fields */
- socket_setnonblocking(&sock);
- un->sock = sock;
- io_init(&un->io, (p_send) socket_send, (p_recv) socket_recv,
- (p_error) socket_ioerror, &un->sock);
- timeout_init(&un->tm, -1, -1);
- buffer_init(&un->buf, &un->io, &un->tm);
- return 1;
- } else {
- lua_pushnil(L);
- lua_pushstring(L, socket_strerror(err));
- return 2;
- }
-}