add dl_hooks

Makefile.in

@@ -1,7 +1,7 @@
 OBJ=common.o vars.o iplist.o sockinfo.o actions.o exit.o hooks.o dl_hooks.o exec_hooks.o time_hooks.o file_hooks.o socket_hooks.o config.o net.o socks.o @X11_HOOKS_OBJ@
 FLAGS=-g -fPIC @CFLAGS@
 CC=gcc
-VERSION=1.2
+VERSION=1.3
 
 all: enhancer.so
 

dl_hooks.c

@@ -0,0 +1,56 @@
+#include "common.h"
+#include "config.h"
+#include <dlfcn.h>
+#include <sys/types.h>
+#include "hooks.h"
+
+
+void *(*enhancer_real_dlopen)(const char *filename, int flag)=NULL;
+int (*enhancer_real_dlclose)(void *handle)=NULL;
+
+void *dlopen(const char *path, int flags)
+{
+char *Redirect=NULL;
+int Flags;
+void *handle;
+
+if (! enhancer_real_dlclose) enhancer_get_real_functions();
+
+Flags=enhancer_checkconfig_with_redirect(FUNC_DLOPEN, "dlopen", path, "", flags, 0, &Redirect);
+
+if (Flags & FLAG_DENY) 
+{
+	destroy(Redirect);
+	return(NULL);
+}
+
+handle=enhancer_real_dlopen(Redirect, flags);
+destroy(Redirect);
+
+return(handle);
+}
+
+
+
+
+int dlclose(void *handle)
+{
+int Flags;
+
+if (! enhancer_real_dlclose) enhancer_get_real_functions();
+
+Flags=enhancer_checkconfig_default(FUNC_DLCLOSE, "dlclose", "", "", 0, 0);
+if (Flags & FLAG_DENY) return(-1);
+if (Flags & FLAG_PRETEND) return(0);
+
+return(enhancer_real_dlclose(handle));
+}
+
+
+
+
+void enhancer_dl_hooks()
+{
+if (! enhancer_real_dlopen) enhancer_real_dlopen = dlsym(RTLD_NEXT, "dlopen");
+if (! enhancer_real_dlclose) enhancer_real_dlclose = dlsym(RTLD_NEXT, "dlclose");
+}