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1 | /*++\r | |
2 | \r | |
3 | Copyright (c) 2004-2006 Intel Corporation. All rights reserved\r | |
4 | This software and associated documentation (if any) is furnished\r | |
5 | under a license and may only be used or copied in accordance\r | |
6 | with the terms of the license. Except as permitted by such\r | |
7 | license, no part of this software or documentation may be\r | |
8 | reproduced, stored in a retrieval system, or transmitted in any\r | |
9 | form or by any means without the express written consent of\r | |
10 | Intel Corporation.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | ZeroDebugData.c\r | |
14 | \r | |
15 | Abstract:\r | |
16 | Zero the Debug Data Fields of Portable Executable (PE) format file.\r | |
17 | \r | |
18 | --*/\r | |
19 | \r | |
20 | #include <stdio.h>\r | |
21 | #include <string.h>\r | |
22 | #include <stdlib.h>\r | |
23 | \r | |
24 | void\r | |
25 | PrintUsage (\r | |
26 | void\r | |
27 | )\r | |
28 | /*++\r | |
29 | Routine Description:\r | |
30 | print usage of ZeroDebugData command\r | |
31 | \r | |
32 | Arguments:\r | |
33 | None\r | |
34 | \r | |
35 | Returns:\r | |
36 | None\r | |
37 | --*/\r | |
38 | // GC_TODO: void - add argument and description to function comment\r | |
39 | {\r | |
40 | //\r | |
41 | // print usage of command\r | |
42 | //\r | |
43 | printf ("\nUsage: ZeroDebugData <PE-File> [DebugData-File]\n");\r | |
44 | }\r | |
45 | \r | |
46 | int\r | |
47 | ReadFromFile (\r | |
48 | FILE *fp,\r | |
49 | long offset,\r | |
50 | void *buffer,\r | |
51 | int size\r | |
52 | )\r | |
53 | /*++\r | |
54 | Routine Description:\r | |
55 | read data from a specified location of file\r | |
56 | \r | |
57 | Arguments:\r | |
58 | fp - file pointer\r | |
59 | offset - number of bytes from beginning of file\r | |
60 | buffer - buffer used to store data\r | |
61 | size - size of buffer\r | |
62 | \r | |
63 | Returns:\r | |
64 | = 0 - Success\r | |
65 | = -1 - Failed\r | |
66 | --*/\r | |
67 | {\r | |
68 | //\r | |
69 | // set file pointer to the specified location of file\r | |
70 | //\r | |
71 | if (fseek (fp, offset, SEEK_SET) != 0) {\r | |
72 | printf ("Error: Cannot move the current location of the file.\n");\r | |
73 | return -1;\r | |
74 | }\r | |
75 | //\r | |
76 | // read data from the file\r | |
77 | //\r | |
78 | if (fread (buffer, size, 1, fp) != 1) {\r | |
79 | printf ("Error: Cannot read data from the file.\n");\r | |
80 | return -1;\r | |
81 | }\r | |
82 | \r | |
83 | return 0;\r | |
84 | }\r | |
85 | \r | |
86 | int\r | |
87 | ZeroDebugData (\r | |
88 | FILE *fp,\r | |
89 | FILE *fpData\r | |
90 | )\r | |
91 | /*++\r | |
92 | \r | |
93 | Routine Description:\r | |
94 | \r | |
95 | Zero the debug data fields of the file\r | |
96 | \r | |
97 | Arguments:\r | |
98 | \r | |
99 | fp - file pointer\r | |
100 | fpData - pointer to output file that ZeroDebugData progress is written to\r | |
101 | \r | |
102 | Returns:\r | |
103 | \r | |
104 | = 0 - Success\r | |
105 | = -1 - Failed\r | |
106 | \r | |
107 | --*/\r | |
108 | {\r | |
109 | unsigned char header[4];\r | |
110 | unsigned long offset;\r | |
111 | unsigned long NumberOfRvaAndSizes;\r | |
112 | unsigned int nvalue;\r | |
113 | unsigned long lvalue;\r | |
114 | unsigned long Size;\r | |
115 | unsigned long Pointer;\r | |
116 | unsigned char *Buffer;\r | |
117 | unsigned long Index;\r | |
118 | \r | |
119 | //\r | |
120 | // read the header of file\r | |
121 | //\r | |
122 | if (ReadFromFile (fp, 0, header, 2) != 0) {\r | |
123 | printf ("Error: open image file\n");\r | |
124 | return -1;\r | |
125 | }\r | |
126 | //\r | |
127 | // "MZ" -- the header of image file (PE)\r | |
128 | //\r | |
129 | if (strncmp ((char *) header, "MZ", 2) != 0) {\r | |
130 | printf ("Error: Invalid Image file.\n");\r | |
131 | return -1;\r | |
132 | }\r | |
133 | //\r | |
134 | // At location 0x3C, the stub has the file offset to the\r | |
135 | // PE signature.\r | |
136 | //\r | |
137 | if (ReadFromFile (fp, 0x3C, &offset, 4) != 0) {\r | |
138 | return -1;\r | |
139 | }\r | |
140 | //\r | |
141 | // read the header of optional\r | |
142 | //\r | |
143 | if (ReadFromFile (fp, offset, header, 4) != 0) {\r | |
144 | return -1;\r | |
145 | }\r | |
146 | //\r | |
147 | // "PE\0\0" -- the signature of optional header\r | |
148 | //\r | |
149 | if (strncmp ((char *) header, "PE\0\0", 4) != 0) {\r | |
150 | printf ("Error: Invalid PE format file.\n");\r | |
151 | return -1;\r | |
152 | }\r | |
153 | //\r | |
154 | // Add 16 to skip COFF file header, and get to optional header.\r | |
155 | //\r | |
156 | offset += 24;\r | |
157 | \r | |
158 | //\r | |
159 | // Check the magic field, 0x10B for PE32 and 0x20B for PE32+\r | |
160 | //\r | |
161 | if (ReadFromFile (fp, offset, &nvalue, 2) != 0) {\r | |
162 | return -1;\r | |
163 | }\r | |
164 | //\r | |
165 | // If this is PE32 image file, offset of NumberOfRvaAndSizes is 92.\r | |
166 | // Else it is 108.\r | |
167 | //\r | |
168 | switch (nvalue & 0xFFFF) {\r | |
169 | case 0x10B:\r | |
170 | offset += 92;\r | |
171 | printf ("Info: Image is PE32. ");\r | |
172 | break;\r | |
173 | \r | |
174 | case 0x20B:\r | |
175 | offset += 108;\r | |
176 | printf ("Info: Image is PE32+. ");\r | |
177 | break;\r | |
178 | \r | |
179 | default:\r | |
180 | printf ("Error: Magic value is unknown.\n");\r | |
181 | return -1;\r | |
182 | }\r | |
183 | //\r | |
184 | // get the value of NumberOfRvaAndSizes\r | |
185 | //\r | |
186 | if (ReadFromFile (fp, offset, &NumberOfRvaAndSizes, 4) != 0) {\r | |
187 | printf ("Error: read NumberOfRvaAndSizes error.\n");\r | |
188 | return -1;\r | |
189 | }\r | |
190 | //\r | |
191 | // printf ("Info: NumberOfRvaAndSizes = %d\n", NumberOfRvaAndSizes);\r | |
192 | //\r | |
193 | //\r | |
194 | // Finding Debug Table, offset of Debug Table\r | |
195 | // is 4 + 6 * 8 = 52.\r | |
196 | //\r | |
197 | if (NumberOfRvaAndSizes >= 7) {\r | |
198 | if (ReadFromFile (fp, offset + 52, &lvalue, 4) != 0) {\r | |
199 | return -1;\r | |
200 | }\r | |
201 | //\r | |
202 | // Read the SizeOfData(16) and PointerToRawData(24)\r | |
203 | //\r | |
204 | if (ReadFromFile (fp, lvalue + 16, &Size, 4) != 0) {\r | |
205 | printf ("error: Size = %d\n", Size);\r | |
206 | return -1;\r | |
207 | }\r | |
208 | \r | |
209 | printf ("Debug data: size = %xh, ", Size);\r | |
210 | fprintf (fpData, "Debug data: size = %xh, ", Size);\r | |
211 | \r | |
212 | if (ReadFromFile (fp, lvalue + 20, &Pointer, 4) != 0) {\r | |
213 | printf ("error: LoadOffset = %xh\n", Pointer);\r | |
214 | return -1;\r | |
215 | }\r | |
216 | //\r | |
217 | // printf ("LoadOffset = %xh, ", Pointer);\r | |
218 | //\r | |
219 | fprintf (fpData, "LoadOffset = %xh, ", Pointer);\r | |
220 | \r | |
221 | if (ReadFromFile (fp, lvalue + 24, &Pointer, 4) != 0) {\r | |
222 | printf ("error: FileOffset = %xh\n", Pointer);\r | |
223 | return -1;\r | |
224 | }\r | |
225 | \r | |
226 | printf ("FileOffset = %xh, ", Pointer);\r | |
227 | fprintf (fpData, "FileOffset = %xh, \n", Pointer);\r | |
228 | \r | |
229 | if ((lvalue != 0) && (Pointer != 0)) {\r | |
230 | //\r | |
231 | // prepare buffer\r | |
232 | //\r | |
233 | Buffer = malloc (Size + 1);\r | |
234 | if (Buffer == NULL) {\r | |
235 | printf ("Error: Cannot allocate memory.\n");\r | |
236 | return -1;\r | |
237 | }\r | |
238 | //\r | |
239 | // set file pointer to the specified location of file\r | |
240 | //\r | |
241 | if (fseek (fp, Pointer, SEEK_SET) != 0) {\r | |
242 | printf ("Error: Cannot move the current location of the file.\n");\r | |
243 | free (Buffer);\r | |
244 | return -1;\r | |
245 | }\r | |
246 | //\r | |
247 | // read data from PE file\r | |
248 | //\r | |
249 | if (fread (Buffer, Size, 1, fp) != 1) {\r | |
250 | printf ("Error: Cannot read data from the file.\n");\r | |
251 | free (Buffer);\r | |
252 | return -1;\r | |
253 | }\r | |
254 | //\r | |
255 | // write to data file\r | |
256 | //\r | |
257 | for (Index = 0; Index < Size;) {\r | |
258 | fprintf (fpData, "%02x ", Buffer[Index]);\r | |
259 | \r | |
260 | Index++;\r | |
261 | if (Index % 8 == 0) {\r | |
262 | fprintf (fpData, "\n");\r | |
263 | }\r | |
264 | }\r | |
265 | \r | |
266 | fprintf (fpData, "\n");\r | |
267 | \r | |
268 | //\r | |
269 | // zero buffer and write back to PE file\r | |
270 | //\r | |
271 | if (fseek (fp, Pointer, SEEK_SET) != 0) {\r | |
272 | printf ("Error: Cannot move the current location of the file.\n");\r | |
273 | free (Buffer);\r | |
274 | return -1;\r | |
275 | }\r | |
276 | \r | |
277 | memset (Buffer, 0, Size);\r | |
278 | if (fwrite (Buffer, Size, 1, fp) != 1) {\r | |
279 | perror ("Error: Cannot write zero to the file.\n");\r | |
280 | free (Buffer);\r | |
281 | return -1;\r | |
282 | }\r | |
283 | //\r | |
284 | // set file pointer to the specified location of file\r | |
285 | //\r | |
286 | if (fseek (fp, lvalue + 4, SEEK_SET) != 0) {\r | |
287 | printf ("Error: Cannot move the current location of the file.\n");\r | |
288 | free (Buffer);\r | |
289 | return -1;\r | |
290 | }\r | |
291 | \r | |
292 | if (fwrite (Buffer, 4, 1, fp) != 1) {\r | |
293 | perror ("Error: Cannot write zero to the file.\n");\r | |
294 | free (Buffer);\r | |
295 | return -1;\r | |
296 | }\r | |
297 | \r | |
298 | free (Buffer);\r | |
299 | }\r | |
300 | }\r | |
301 | \r | |
302 | return 0;\r | |
303 | }\r | |
304 | \r | |
305 | int\r | |
306 | main (\r | |
307 | int argc,\r | |
308 | char *argv[]\r | |
309 | )\r | |
310 | /*++\r | |
311 | \r | |
312 | Routine Description:\r | |
313 | \r | |
314 | Prints the zero debug data of the PE file to the DebugData file.\r | |
315 | Executes the ZeroDebugData function.\r | |
316 | \r | |
317 | Arguments:\r | |
318 | \r | |
319 | argc - Standard C argument, number of command line arguments.\r | |
320 | argv[] - Standard C argument, array of pointers to the input files,\r | |
321 | such as the PE and DebugData files.\r | |
322 | \r | |
323 | Returns:\r | |
324 | \r | |
325 | zero - success\r | |
326 | nonzero - failure\r | |
327 | \r | |
328 | --*/\r | |
329 | {\r | |
330 | FILE *fp;\r | |
331 | FILE *fpData;\r | |
332 | char DataFile[1024] = "";\r | |
333 | \r | |
334 | //\r | |
335 | // check the number of parameters\r | |
336 | //\r | |
337 | if (argc < 2) {\r | |
338 | printf ("\nUsage: ZeroDebugData <PE-File> [DebugData-File]\n");\r | |
339 | return -1;\r | |
340 | }\r | |
341 | //\r | |
342 | // open the DebugData file, if not exists, return\r | |
343 | //\r | |
344 | if (argc >= 3) {\r | |
345 | strcpy (DataFile, argv[2]);\r | |
346 | } else {\r | |
347 | strcpy (DataFile, "DebugData.dat");\r | |
348 | }\r | |
349 | \r | |
350 | fpData = fopen (DataFile, "a+");\r | |
351 | if (fpData == NULL) {\r | |
352 | fpData = fopen (DataFile, "w");\r | |
353 | if (fpData == NULL) {\r | |
354 | printf ("Error: Cannot open the data file!\n");\r | |
355 | return -1;\r | |
356 | }\r | |
357 | }\r | |
358 | //\r | |
359 | // open the PE file\r | |
360 | //\r | |
361 | fp = fopen (argv[1], "r+b");\r | |
362 | if (fp == NULL) {\r | |
363 | printf ("Error: Cannot open the PE file!\n");\r | |
364 | return -1;\r | |
365 | }\r | |
366 | //\r | |
367 | // Zero the Debug Data to the PE file\r | |
368 | //\r | |
369 | printf ("Zero Debug Data to file %s:\n", argv[1]);\r | |
370 | fprintf (fpData, "\nZero Debug Data to file %s:\n", argv[1]);\r | |
371 | if ((int *) ZeroDebugData (fp, fpData) != 0) {\r | |
372 | printf ("Error: Zero Debug Data PE file\n");\r | |
373 | fclose (fp);\r | |
374 | return -1;\r | |
375 | }\r | |
376 | \r | |
377 | printf (" success\n");\r | |
378 | \r | |
379 | //\r | |
380 | // close the PE file\r | |
381 | //\r | |
382 | fflush (fpData);\r | |
383 | fflush (fp);\r | |
384 | fclose (fpData);\r | |
385 | fclose (fp);\r | |
386 | \r | |
387 | return 0;\r | |
388 | }\r |