1 /* 2 Copyright (c) 2007-2015. The YARA Authors. All Rights Reserved. 3 4 Redistribution and use in source and binary forms, with or without modification, 5 are permitted provided that the following conditions are met: 6 7 1. Redistributions of source code must retain the above copyright notice, this 8 list of conditions and the following disclaimer. 9 10 2. Redistributions in binary form must reproduce the above copyright notice, 11 this list of conditions and the following disclaimer in the documentation and/or 12 other materials provided with the distribution. 13 14 3. Neither the name of the copyright holder nor the names of its contributors 15 may be used to endorse or promote products derived from this software without 16 specific prior written permission. 17 18 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 19 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 22 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 25 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef YR_FILEMAP_H 31 #define YR_FILEMAP_H 32 33 #include <sys/types.h> 34 35 #if defined(_WIN32) || defined(__CYGWIN__) 36 #include <windows.h> 37 #define YR_FILE_DESCRIPTOR HANDLE 38 #else 39 #define YR_FILE_DESCRIPTOR int 40 #endif 41 42 #include <stdlib.h> 43 #include <yara/integers.h> 44 #include <yara/utils.h> 45 46 47 typedef struct _YR_MAPPED_FILE 48 { 49 YR_FILE_DESCRIPTOR file; 50 size_t size; 51 const uint8_t* data; 52 #if defined(_WIN32) || defined(__CYGWIN__) 53 HANDLE mapping; 54 #endif 55 56 } YR_MAPPED_FILE; 57 58 59 YR_API int yr_filemap_map(const char* file_path, YR_MAPPED_FILE* pmapped_file); 60 61 62 YR_API int yr_filemap_map_fd( 63 YR_FILE_DESCRIPTOR file, 64 uint64_t offset, 65 size_t size, 66 YR_MAPPED_FILE* pmapped_file); 67 68 69 YR_API int yr_filemap_map_ex( 70 const char* file_path, 71 uint64_t offset, 72 size_t size, 73 YR_MAPPED_FILE* pmapped_file); 74 75 76 YR_API void yr_filemap_unmap(YR_MAPPED_FILE* pmapped_file); 77 78 79 YR_API void yr_filemap_unmap_fd(YR_MAPPED_FILE* pmapped_file); 80 81 #endif 82