| /***************************************************************************** |
| * Copyright (C) 2011-13 Qualys, Inc |
| * Copyright (C) 2013 The Apache Software Foundation |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * QUALYS licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| ****************************************************************************/ |
| |
| /* libloader: load libraries, making all symbols exported |
| * universally visible. Equivalent to LoadFile in HTTPD. |
| * |
| * Written for ironbee plugin, whose module architecture |
| * is not compatible with trafficserver's plugins. |
| * May be useful for other plugins with non-trivial |
| * library dependencies. |
| */ |
| |
| #include <dlfcn.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <ts/ts.h> |
| |
| typedef struct { |
| void *handle; |
| void *next; |
| } link_handle; |
| |
| static link_handle *libs = NULL; |
| |
| static void |
| unloadlibs(void) |
| { |
| link_handle *p = libs; |
| while (p != NULL) { |
| link_handle *next = p->next; |
| dlclose(p->handle); |
| TSfree(p); |
| p = next; |
| } |
| libs = NULL; |
| } |
| |
| void |
| TSPluginInit(int argc, const char *argv[]) |
| { |
| int i; |
| TSPluginRegistrationInfo info; |
| |
| info.plugin_name = (char *)"libloader"; |
| info.vendor_name = (char *)"Apache Software Foundation"; |
| info.support_email = (char *)"dev@trafficserver.apache.org"; |
| |
| if (TSPluginRegister(&info) != TS_SUCCESS) { |
| TSError("[libloader] Plugin registration failed.\n"); |
| return; |
| } |
| |
| atexit(unloadlibs); |
| |
| for (i = 1; i < argc; ++i) { |
| const char *lib = argv[i]; |
| void *handle = dlopen(lib, RTLD_GLOBAL | RTLD_NOW); |
| if (handle) { |
| link_handle *l = TSmalloc(sizeof(link_handle)); |
| l->handle = handle; |
| l->next = libs; |
| libs = l; |
| TSDebug("libloader", " loaded %s", lib); |
| } else { |
| TSError("[libloader] failed to load %s: %s\n", lib, dlerror()); |
| } |
| } |
| return; |
| } |