X-Git-Url: https://jfr.im/git/irc/quakenet/newserv.git/blobdiff_plain/2f51c193a7347b4b130e514bc2315ab9b6c1bb30..1151d736b86e4405ed9e0266dc5227a2ab9a5d66:/lua/lua.c

diff --git a/lua/lua.c b/lua/lua.c
index 12e5079f..07087df1 100644
--- a/lua/lua.c
+++ b/lua/lua.c
@@ -4,18 +4,39 @@
 /* ALL RIGHTS RESERVED. */
 /* Don't put this into the SVN repo. */
 
+#define _POSIX_C_SOURCE 200112L
+#include <stdlib.h>
+
 #include "../core/config.h"
 #include "../core/error.h"
 #include "../core/hooks.h"
 #include "../lib/array.h"
 #include "../lib/irc_string.h"
 #include "../core/schedule.h"
-
+#include "../lib/version.h"
+#include "../lib/strlfunc.h"
 #include "lua.h"
 
+MODULE_VERSION(LUA_SMALLVERSION);
+
+#ifdef LUA_DEBUGSOCKET
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#endif
+
 void lua_startup(void *arg);
 void lua_loadscripts(void);
 void lua_registercommands(lua_State *l);
+void lua_registerdbcommands(lua_State *l);
+void lua_initnickpusher(void);
+void lua_initchanpusher(void);
 void lua_loadlibs(lua_State *l);
 void lua_require(lua_State *l, char *module);
 
@@ -27,7 +48,24 @@ void lua_destroycontrol(void);
 void lua_onunload(lua_State *l);
 void lua_onload(lua_State *l);
 
-void lua_setpath(lua_State *l);
+void lua_setpath(void);
+
+void lua_setupdebugsocket(void);
+void lua_freedebugsocket(void);
+
+void lua_deregisternicks(lua_list *l);
+void lua_registerlocalcommands(lua_State *ps);
+void lua_registerdebug(lua_State *ps);
+void lua_socket_closeall(lua_list *l);
+void lua_registersocketcommands(lua_State *ps);
+void lua_registercryptocommands(lua_State *ps);
+
+#ifdef LUA_DEBUGSOCKET
+
+struct sockaddr_in debugsocketdest;
+int debugsocket = -1;
+
+#endif
 
 lua_list *lua_head = NULL, *lua_tail = NULL;
 
@@ -37,6 +75,9 @@ void *startsched = NULL;
 
 int loaded = 0;
 
+struct rusage r_usages;
+struct rusage r_usagee;
+
 static const luaL_Reg ourlibs[] = {
   {"", luaopen_base},
   {LUA_LOADLIBNAME, luaopen_package},
@@ -45,13 +86,25 @@ static const luaL_Reg ourlibs[] = {
   {LUA_OSLIBNAME, luaopen_os},
   {LUA_STRLIBNAME, luaopen_string},
   {LUA_MATHLIBNAME, luaopen_math},
-#ifdef LUA_JITLIBNAME
+#ifdef LUA_USEJIT
   {LUA_JITLIBNAME, luaopen_jit},
 #endif
   {NULL, NULL}
 };
+
+lua_list dummy;
   
 void _init() {
+  lua_setupdebugsocket();
+  lua_initnickpusher();
+  lua_initchanpusher();
+
+  dummy.name = getsstring("???", 10);
+  if(!dummy.name) {
+    Error("lua", ERR_ERROR, "Cannot set dummy name.");
+    return;
+  }
+
   cpath = getcopyconfigitem("lua", "scriptdir", "", 500);
 
   if(!cpath || !cpath->content || !cpath->content[0]) {
@@ -65,6 +118,8 @@ void _init() {
     return;
   }
 
+  lua_setpath();
+
   loaded = 1;
 
   startsched = scheduleoneshot(time(NULL) + 1, &lua_startup, NULL);
@@ -98,6 +153,10 @@ void _fini() {
 
   freesstring(cpath);
   freesstring(suffix);
+  freesstring(dummy.name);
+
+  lua_freedebugsocket();
+  nscheckfreeall(POOL_LUA);
 }
 
 void lua_loadscripts(void) {
@@ -114,42 +173,64 @@ void lua_loadscripts(void) {
   }
 }
 
+/* taken from the lua manual, modified to use nsmalloc */
+static void *lua_nsmalloc(void *ud, void *ptr, size_t osize, size_t nsize) {
+  if(nsize == 0) {
+    if(ptr != NULL)
+      luafree(ptr);
+    return NULL;
+  }
+
+  return luarealloc(ptr, nsize);
+}
+
 lua_State *lua_loadscript(char *file) {
   char fullpath[LUA_PATHLEN];
   int top;
   lua_State *l;
   lua_list *n;
+  char buf[1024];
 
   if(!cpath || !suffix)
     return NULL;
 
-  delchars(file, "./\\;");
+  strlcpy(buf, file, sizeof(buf));
 
-  if(lua_scriptloaded(file))
+  delchars(buf, "./\\;");
+
+  if(lua_scriptloaded(buf))
     return NULL;
 
-  l = lua_open();
+  l = lua_newstate(lua_nsmalloc, NULL);
   if(!l)
     return NULL;
 
-  n = (lua_list *)malloc(sizeof(lua_list));;
+  n = (lua_list *)luamalloc(sizeof(lua_list));;
   if(!n) {
-    Error("lua", ERR_ERROR, "Error allocing list for %s.", file);
+    Error("lua", ERR_ERROR, "Error allocing list for %s.", buf);
     return NULL;
   }
 
-  n->name = getsstring(file, LUA_PATHLEN);
+  n->name = getsstring(buf, LUA_PATHLEN);
   if(!n->name) {
-    Error("lua", ERR_ERROR, "Error allocing name item for %s.", file);
-    free(n);
+    Error("lua", ERR_ERROR, "Error allocing name item for %s.", buf);
+    luafree(n);
     return NULL;
   }
+  n->calls = 0;
+
+  timerclear(&n->ru_utime);
+  timerclear(&n->ru_stime);
 
   lua_loadlibs(l);
+  lua_registerdebug(l);
   lua_registercommands(l);
-  lua_setpath(l);
+  lua_registerlocalcommands(l);
+  lua_registerdbcommands(l);
+  lua_registersocketcommands(l);
+  lua_registercryptocommands(l);
 
-#ifdef LUA_JITLIBNAME
+#ifdef LUA_USEJIT
   lua_require(l, "lib/jit");
 #endif
 
@@ -160,27 +241,16 @@ lua_State *lua_loadscript(char *file) {
     Error("lua", ERR_ERROR, "Error loading %s.", file);
     lua_close(l);
     freesstring(n->name);
-    free(n);
-    return NULL;
-  }
-
-  top = lua_gettop(l);
-
-  if(lua_pcall(l, 0, 0, 0)) {
-    Error("lua", ERR_ERROR, "Error setting pcall on %s.", file);
-    lua_close(l);
-    freesstring(n->name);
-    free(n);
+    luafree(n);
     return NULL;
   }
 
-  lua_settop(l, top);
-
-  Error("lua", ERR_INFO, "Loaded %s.", file);
   n->l = l;
 
   n->next = NULL;
   n->prev = lua_tail;
+  n->nicks = NULL;
+  n->sockets = NULL;
 
   if(!lua_head) { 
     lua_head = n;
@@ -190,6 +260,27 @@ lua_State *lua_loadscript(char *file) {
 
   lua_tail = n;
 
+  top = lua_gettop(l);
+
+  if(lua_pcall(l, 0, 0, 0)) {
+    Error("lua", ERR_ERROR, "Error pcalling: %s.", file);
+    lua_close(l);
+    freesstring(n->name);
+
+    if(lua_head == n)
+      lua_head = NULL;
+
+    lua_tail = n->prev;
+    if(lua_tail)
+      lua_tail->next = NULL;
+
+    luafree(n);
+    return NULL;
+  }
+
+  lua_settop(l, top);
+
+  Error("lua", ERR_INFO, "Loaded %s.", file);
   lua_onload(l);
 
   return l;
@@ -197,6 +288,8 @@ lua_State *lua_loadscript(char *file) {
 
 void lua_unloadscript(lua_list *l) {
   lua_onunload(l->l);
+  lua_deregisternicks(l);
+  lua_socket_closeall(l);
   lua_close(l->l);
   freesstring(l->name);
 
@@ -223,46 +316,14 @@ void lua_unloadscript(lua_list *l) {
      }
   }
 
-  free(l);
+  luafree(l);
 }
 
-void lua_setpath(lua_State *l) {
-  char fullpath[LUA_PATHLEN], *prev = NULL;
-
-  int top = lua_gettop(l);
-
-  lua_getglobal(l, "package");
-  if(!lua_istable(l, 1)) {
-    Error("lua", ERR_ERROR, "Unable to set package.path (package is not a table).");
-    return;
-  }
-
-  lua_pushstring(l, "path");
-  lua_gettable(l, -2);
-
-  if(lua_isstring(l, -1))
-    prev = (char *)lua_tostring(l, -1);
-
-  if(prev) {
-    snprintf(fullpath, sizeof(fullpath), "%s;%s/?%s", prev, cpath->content, suffix->content);
-  } else {
-    snprintf(fullpath, sizeof(fullpath), "%s/?%s", cpath->content, suffix->content);
-  }
-
-  /* pop broke! */
-
-  lua_getglobal(l, "package");
-  if(!lua_istable(l, 1)) {
-    Error("lua", ERR_ERROR, "Unable to set package.path (package is not a table).");
-    return;
-  }
-
-  lua_pushstring(l, "path");
-
-  lua_pushstring(l, fullpath);
-  lua_settable(l, -3);
+void lua_setpath(void) {
+  char fullpath[LUA_PATHLEN];
 
-  lua_settop(l, top);
+  snprintf(fullpath, sizeof(fullpath), "%s/?%s", cpath->content, suffix->content);
+  setenv("LUA_PATH", fullpath, 1);
 }
 
 lua_list *lua_scriptloaded(char *name) {
@@ -297,4 +358,104 @@ void lua_require(lua_State *l, char *module) {
   lua_settop(l, top);
 }
 
+void lua_setupdebugsocket(void) {
+#ifdef LUA_DEBUGSOCKET
+
+  debugsocket = socket(AF_INET, SOCK_DGRAM, 0);
+  if(debugsocket < 0) {
+    debugsocket = -1;
+    Error("lua", ERR_ERROR, "Cannot create debug socket.");
+
+    return;
+  }
+
+  memset(&debugsocketdest, 0, sizeof(debugsocketdest));
+
+  debugsocketdest.sin_family = AF_INET;
+  debugsocketdest.sin_port = htons(LUA_DEBUGSOCKET_PORT);
+  debugsocketdest.sin_addr.s_addr = inet_addr(LUA_DEBUGSOCKET_ADDRESS);
+
+#endif
+}
+
+void lua_freedebugsocket(void) {
+#ifdef LUA_DEBUGSOCKET
+
+  if(debugsocket == -1)
+    return;
+
+  close(debugsocket);
+
+
+  debugsocket = -1;
+
+#endif
+}
+
+#ifdef LUA_DEBUGSOCKET
+void lua_debugoutput(char *format, ...) {
+  char buf[1024];
+  va_list va;
+  int size;
+
+  if(debugsocket == -1)
+    return;
+
+  va_start(va, format);
+  size = vsnprintf(buf, sizeof(buf), format, va);
+  va_end(va);
+
+  if(size >= sizeof(buf))
+    size = sizeof(buf) - 1;
+
+  if(size > 0)
+    sendto(debugsocket, buf, size, 0, (struct sockaddr *)&debugsocketdest, sizeof(debugsocketdest));
+}
+#endif
+
+lua_list *lua_listfromstate(lua_State *l) {
+  lua_list *i = lua_head;
+  for(;i;i=i->next)
+    if(i->l == l)
+      return i;
+
+  return &dummy;
+}
+
+int lua_listexists(lua_list *l) {
+  lua_list *i;
+
+  for(i=lua_head;i;i=i->next)
+    if(i == l)
+      return 1;
+
+  return 0;
+}
+
+int lua_lineok(const char *data) {
+  if(strchr(data, '\r') || strchr(data, '\n'))
+    return 0;
+  return 1;
+}
+
+int lua_debugpcall(lua_State *l, char *message, int a, int b, int c) {
+  lua_list *l2 = lua_listfromstate(l);
+  int ret;
+
+#ifdef LUA_DEBUGSOCKET
+  DEBUGOUT("%s: %s\n", l2->name->content, message);
+#endif
+
+#ifdef LUA_PROFILE
+  ACCOUNTING_START(l2);
+#endif
+
+  ret = lua_pcall(l, a, b, c);
+
+#ifdef LUA_PROFILE
+  ACCOUNTING_STOP(l2);
+#endif
+
+  return ret;
+}