1 /************************************************************************** 2 * 3 * Copyright 2009 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20 * USE OR OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * The above copyright notice and this permission notice (including the 23 * next paragraph) shall be included in all copies or substantial portions 24 * of the Software. 25 * 26 **************************************************************************/ 27 28 29 #ifndef U_DL_H_ 30 #define U_DL_H_ 31 32 33 #include "detect_os.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #if DETECT_OS_WINDOWS 40 # define UTIL_DL_EXT ".dll" 41 # define UTIL_DL_PREFIX "" 42 #elif DETECT_OS_APPLE 43 # define UTIL_DL_EXT ".dylib" 44 # define UTIL_DL_PREFIX "lib" 45 #else 46 # define UTIL_DL_EXT ".so" 47 # define UTIL_DL_PREFIX "lib" 48 #endif 49 50 51 struct util_dl_library; 52 53 54 typedef void (*util_dl_proc)(void); 55 56 57 /** 58 * Open a library dynamically. 59 */ 60 struct util_dl_library * 61 util_dl_open(const char *filename); 62 63 64 /** 65 * Lookup a function in a library. 66 */ 67 util_dl_proc 68 util_dl_get_proc_address(struct util_dl_library *library, 69 const char *procname); 70 71 72 /** 73 * Close a library. 74 */ 75 void 76 util_dl_close(struct util_dl_library *library); 77 78 79 /** 80 * Return most recent error message. 81 */ 82 const char * 83 util_dl_error(void); 84 85 #ifdef __cplusplus 86 } 87 #endif 88 89 #endif /* U_DL_H_ */ 90