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-rw-r--r--modules.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/modules.c b/modules.c
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+++ b/modules.c
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+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003,2004 jeremian <jeremian [at] poczta.fm>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "modules.h"
+
+#include <stdlib.h>
+#include <dlfcn.h>
+
+int
+loadmodule(moduleT* module)
+{
+ if (module->name) {
+ module->handle = dlopen(module->name, RTLD_NOW);
+ if (!module->handle) {
+ return 1;
+ }
+ dlerror();
+ *(void**) (&module->info) = dlsym(module->handle, "info");
+ *(void**) (&module->allow) = dlsym(module->handle, "allow");
+ *(void**) (&module->filter) = dlsym(module->handle, "filter");
+ if (dlerror() != NULL) {
+ return 2;
+ }
+ module->loaded = 1;
+ }
+ return 0;
+}
+
+int
+releasemodule(moduleT* module)
+{
+ if (ismloaded(module)) {
+ module->loaded = 0;
+ module->info = NULL;
+ module->allow = NULL;
+ module->filter = NULL;
+ return dlclose(module->handle);
+ }
+ return 0;
+}
+
+int
+ismloaded(moduleT* module)
+{
+ return module->loaded;
+}