344

[xonotic/darkplaces.git] / sys_shared.c

diff --git a/sys_shared.c b/sys_shared.c
index a8016fa7cc371bc2b8ec2a1c4ae5bffe2b39b4b7..dfd9a7a37e72b0bff8dffc79bc5f783638ccbfc8 100644 (file)
--- a/sys_shared.c
+++ b/sys_shared.c
@@ -1,9 +1,10 @@
 
 #include "quakedef.h"
-#include <time.h>
+# include <time.h>
 #ifndef WIN32
-#include <unistd.h>
-#include <fcntl.h>
+# include <unistd.h>
+# include <fcntl.h>
+# include <dlfcn.h>
 #endif
 
 extern cvar_t  timestamps;
@@ -71,7 +72,7 @@ void Sys_Print(const char *msg)
        if (timestamps.integer)
                snprintf(final, sizeof(final), "%s%s", Sys_TimeString(timeformat.string), msg);
        else
-               strncpy(final, msg, sizeof(final));
+               strlcpy (final, msg, sizeof (final));
 
        // LordHavoc: make sure the string is terminated
        final[MAXPRINTMSG-1] = 0;
@@ -92,6 +93,11 @@ void Sys_Printf(const char *fmt, ...)
        Sys_Print(msg);
 }
 
+void Sys_Quit (void)
+{
+       Host_Shutdown();
+       exit(0);
+}
 
 char engineversion[128];
 
@@ -135,26 +141,56 @@ DLL MANAGEMENT
 ===============================================================================
 */
 
-#ifndef WIN32
-#include <dlfcn.h>
-#endif
-
-dllhandle_t Sys_LoadLibrary (const char* name)
+qboolean Sys_LoadLibrary (const char* dllname, dllhandle_t* handle, const dllfunction_t *fcts)
 {
+       const dllfunction_t *func;
+       dllhandle_t dllhandle;
+
+       if (handle == NULL)
+               return false;
+
+       // Initializations
+       for (func = fcts; func && func->name != NULL; func++)
+               *func->funcvariable = NULL;
+
+       // Load the DLL
 #ifdef WIN32
-       return LoadLibrary (name);
+       dllhandle = LoadLibrary (dllname);
 #else
-       return dlopen (name, RTLD_LAZY);
+       dllhandle = dlopen (dllname, RTLD_LAZY);
 #endif
+       if (! dllhandle)
+       {
+               Con_Printf ("Can't load \"%s\".\n", dllname);
+               return false;
+       }
+
+       // Get the function adresses
+       for (func = fcts; func && func->name != NULL; func++)
+               if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
+               {
+                       Con_Printf ("Missing function \"%s\" - broken library!\n", func->name);
+                       Sys_UnloadLibrary (&dllhandle);
+                       return false;
+               }
+
+       *handle = dllhandle;
+       Con_DPrintf("\"%s\" loaded.\n", dllname);
+       return true;
 }
 
-void Sys_UnloadLibrary (dllhandle_t handle)
+void Sys_UnloadLibrary (dllhandle_t* handle)
 {
+       if (handle == NULL || *handle == NULL)
+               return;
+
 #ifdef WIN32
-       FreeLibrary (handle);
+       FreeLibrary (*handle);
 #else
-       dlclose (handle);
+       dlclose (*handle);
 #endif
+
+       *handle = NULL;
 }
 
 void* Sys_GetProcAddress (dllhandle_t handle, const char* name)