1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #include <stdio.h>
6 #include <stdint.h>
7 #include <windows.h>
8 #include <dbghelp.h>
9
10 const DWORD CV_SIGNATURE_RSDS = 0x53445352; // 'SDSR'
11
12 struct CV_INFO_PDB70 {
13 DWORD CvSignature;
14 GUID Signature;
15 DWORD Age;
16 BYTE PdbFileName[1];
17 };
18
print_guid(const GUID & guid,DWORD age)19 void print_guid(const GUID& guid, DWORD age) {
20 printf("%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X%X", guid.Data1,
21 guid.Data2, guid.Data3, guid.Data4[0], guid.Data4[1], guid.Data4[2],
22 guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6],
23 guid.Data4[7], age);
24 }
25
main(int argc,char ** argv)26 int main(int argc, char** argv) {
27 if (argc != 2) {
28 fprintf(stderr, "usage: fileid <file>\n");
29 return 1;
30 }
31
32 HANDLE file = CreateFileA(argv[1], GENERIC_READ, FILE_SHARE_READ, nullptr,
33 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
34 if (file == INVALID_HANDLE_VALUE) {
35 fprintf(stderr, "Couldn't open file: %s\n", argv[1]);
36 return 1;
37 }
38
39 HANDLE mapFile = CreateFileMappingA(file, NULL, PAGE_READONLY, 0, 0, 0);
40 if (mapFile == nullptr) {
41 fprintf(stderr, "Couldn't create file mapping\n");
42 CloseHandle(file);
43 return 1;
44 }
45
46 uint8_t* base = reinterpret_cast<uint8_t*>(
47 MapViewOfFile(mapFile, FILE_MAP_READ, 0, 0, 0));
48 if (base == nullptr) {
49 fprintf(stderr, "Couldn't map file\n");
50 CloseHandle(mapFile);
51 CloseHandle(file);
52 return 1;
53 }
54
55 DWORD size;
56 PIMAGE_DEBUG_DIRECTORY debug_dir =
57 reinterpret_cast<PIMAGE_DEBUG_DIRECTORY>(ImageDirectoryEntryToDataEx(
58 base, FALSE, IMAGE_DIRECTORY_ENTRY_DEBUG, &size, nullptr));
59
60 bool found = false;
61 if (debug_dir->Type == IMAGE_DEBUG_TYPE_CODEVIEW) {
62 CV_INFO_PDB70* cv =
63 reinterpret_cast<CV_INFO_PDB70*>(base + debug_dir->PointerToRawData);
64 if (cv->CvSignature == CV_SIGNATURE_RSDS) {
65 found = true;
66 print_guid(cv->Signature, cv->Age);
67 }
68 }
69
70 UnmapViewOfFile(base);
71 CloseHandle(mapFile);
72 CloseHandle(file);
73
74 return found ? 0 : 1;
75 }
76