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authorJakub Sławiński2005-11-03 20:37:56 +0100
committerJoshua Judson Rosen2014-07-17 21:15:00 +0200
commit63bbc710b23893742e5ccbd430f95bf2d29c2da6 (patch)
tree06d0585724cff8a4f1a7c052b5b89fd12c404094 /src/module_struct.c
parentv0.7.2 (diff)
downloadapf-63bbc710b23893742e5ccbd430f95bf2d29c2da6.tar.gz
v0.7.4
- Fixed: sockets in CLOSE_WAIT state left by afclient - Added: --localname and --localport options - Added: --localdesname option - Added: kicking user in 'opening' state - Fixed: info about kicked user - Fixed: TERM signal handling - Fixed: id lost after reconnection - Fixed: printing wrong client name in 'SSL_accept failed (timeout)' message - Fixed: ignored 'certificate' and 'key' options from config file - Added: config files for afclient - Modified: some options in afserver config file
Diffstat (limited to 'src/module_struct.c')
-rw-r--r--src/module_struct.c217
1 files changed, 217 insertions, 0 deletions
diff --git a/src/module_struct.c b/src/module_struct.c
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--- /dev/null
+++ b/src/module_struct.c
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+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003,2004,2005 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 <config.h>
+
+#ifdef HAVE_LIBDL
+
+#include "string_functions.h"
+#include "module_struct.h"
+
+#include <stdlib.h>
+#include <dlfcn.h>
+
+/*
+ * Function name: Module_new
+ * Description: Create and initialize new Module structure.
+ * Returns: Pointer to newly created Module structure.
+ */
+
+Module*
+Module_new()
+{
+ Module* tmp = calloc(1, sizeof(Module));
+ if (tmp == NULL) {
+ return NULL;
+ }
+ return tmp;
+}
+
+/*
+ * Function name: Module_free
+ * Description: Free the memory allocated for Module structure.
+ * Arguments: m - pointer to pointer to Module structure
+ */
+
+void
+Module_free(Module** m)
+{
+ if (m == NULL) {
+ return;
+ }
+ if ((*m) == NULL) {
+ return;
+ }
+ Module_releaseModule(*m);
+ if ((*m)->fileName) {
+ free((*m)->fileName);
+ (*m)->fileName = NULL;
+ }
+ free((*m));
+ (*m) = NULL;
+}
+
+/*
+ * Function name: Module_set_fileName
+ * Description: Set the filename of the module.
+ * Arguments: m - pointer to Module structure
+ * fileName - the filename of the module
+ */
+
+void
+Module_set_fileName(Module* m, char* fileName)
+{
+ if (m == NULL) {
+ return;
+ }
+ string_cp(&(m->fileName), fileName);
+}
+
+/*
+ * Function name: Module_get_fileName
+ * Description: Get the filename of the module.
+ * Arguments: m - pointer to Module structure
+ * Returns: The filename of the module.
+ */
+
+char*
+Module_get_fileName(Module* m)
+{
+ if (m == NULL) {
+ return NULL;
+ }
+ return m->fileName;
+}
+
+/*
+ * Function name: Module_loadModule
+ * Description: Load the module into the memory.
+ * Arguments: m - pointer to Module structure
+ * Returns: 0 - successful/filename not set
+ * 1/2 - some errors occured.
+ */
+
+int
+Module_loadModule(Module* m)
+{
+ if (Module_get_fileName(m)) {
+ m->handle = dlopen(Module_get_fileName(m), RTLD_NOW);
+ if (!m->handle) {
+ return 1;
+ }
+ dlerror();
+ *(void**) (&m->info) = dlsym(m->handle, "info");
+ *(void**) (&m->allow) = dlsym(m->handle, "allow");
+ *(void**) (&m->filter) = dlsym(m->handle, "filter");
+ if (dlerror() != NULL) {
+ return 2;
+ }
+ m->loaded = 1;
+ }
+ return 0;
+}
+
+/*
+ * Function name: Module_releaseModule
+ * Description: Unload the module from the memory.
+ * Arguments: m - pointer to Module structure
+ * Returns: 0 - successful/module was not loaded
+ * !0 - some errors occured.
+ */
+
+int
+Module_releaseModule(Module* m)
+{
+ if (Module_isModuleLoaded(m)) {
+ m->loaded = 0;
+ m->info = NULL;
+ m->allow = NULL;
+ m->filter = NULL;
+ return dlclose(m->handle);
+ }
+ return 0;
+}
+
+/*
+ * Function name: Module_isModuleLoaded
+ * Description: Check if the module is loaded into the memory.
+ * Arguments: m - pointer to Module structure
+ * Returns: 0 - module is not loaded
+ * 1 - module is loaded.
+ */
+
+int
+Module_isModuleLoaded(Module* m)
+{
+ if (m == NULL) {
+ return 0;
+ }
+ return m->loaded;
+}
+
+/*
+ * Function name: Module_function_info
+ * Description: Exec the info function of the module.
+ * Arguments: m - pointer to Module structure
+ * Returns: Result of the info function of the module.
+ */
+
+char*
+Module_function_info(Module* m)
+{
+ if (!Module_isModuleLoaded(m)) {
+ return NULL;
+ }
+ return m->info();
+}
+
+/*
+ * Function name: Module_function_allow
+ * Description: Exec the allow function of the module.
+ * Arguments: m - pointer to Module structure
+ * Returns: Result of the allow function of the module.
+ */
+
+int
+Module_function_allow(Module* m, char* host, char* port)
+{
+ if (!Module_isModuleLoaded(m)) {
+ return 0;
+ }
+ return m->allow(host, port);
+}
+
+/*
+ * Function name: Module_function_filter
+ * Description: Exec the filter function of the module.
+ * Arguments: m - pointer to Module structure
+ * Returns: Result of the filter function of the module.
+ */
+
+int
+Module_function_filter(Module* m, char* host, unsigned char* message, int* messageLength)
+{
+ if (!Module_isModuleLoaded(m)) {
+ return 0;
+ }
+ return m->filter(host, message, messageLength);
+}
+
+#endif