| 279 | } |
| 280 | |
| 281 | ULONG DetourIsCodeFiller(PUCHAR pCode) { |
| 282 | // 1-byte through 11-byte NOPs. |
| 283 | if (pCode[0] == 0x90) { |
| 284 | return 1; |
| 285 | } |
| 286 | if (pCode[0] == 0x66 && pCode[1] == 0x90) { |
| 287 | return 2; |
| 288 | } |
| 289 | if (pCode[0] == 0x0F && pCode[1] == 0x1F && pCode[2] == 0x00) { |
| 290 | return 3; |
| 291 | } |
| 292 | if (pCode[0] == 0x0F && pCode[1] == 0x1F && pCode[2] == 0x40 && |
| 293 | pCode[3] == 0x00) { |
| 294 | return 4; |
| 295 | } |
| 296 | if (pCode[0] == 0x0F && pCode[1] == 0x1F && pCode[2] == 0x44 && |
| 297 | pCode[3] == 0x00 && pCode[4] == 0x00) { |
| 298 | return 5; |
| 299 | } |
| 300 | if (pCode[0] == 0x66 && pCode[1] == 0x0F && pCode[2] == 0x1F && |
| 301 | pCode[3] == 0x44 && pCode[4] == 0x00 && pCode[5] == 0x00) { |
| 302 | return 6; |
| 303 | } |
| 304 | if (pCode[0] == 0x0F && pCode[1] == 0x1F && pCode[2] == 0x80 && |
| 305 | pCode[3] == 0x00 && pCode[4] == 0x00 && pCode[5] == 0x00 && |
| 306 | pCode[6] == 0x00) { |
| 307 | return 7; |
| 308 | } |
| 309 | if (pCode[0] == 0x0F && pCode[1] == 0x1F && pCode[2] == 0x84 && |
| 310 | pCode[3] == 0x00 && pCode[4] == 0x00 && pCode[5] == 0x00 && |
| 311 | pCode[6] == 0x00 && pCode[7] == 0x00) { |
| 312 | return 8; |
| 313 | } |
| 314 | if (pCode[0] == 0x66 && pCode[1] == 0x0F && pCode[2] == 0x1F && |
| 315 | pCode[3] == 0x84 && pCode[4] == 0x00 && pCode[5] == 0x00 && |
| 316 | pCode[6] == 0x00 && pCode[7] == 0x00 && pCode[8] == 0x00) { |
| 317 | return 9; |
| 318 | } |
| 319 | if (pCode[0] == 0x66 && pCode[1] == 0x66 && pCode[2] == 0x0F && |
| 320 | pCode[3] == 0x1F && pCode[4] == 0x84 && pCode[5] == 0x00 && |
| 321 | pCode[6] == 0x00 && pCode[7] == 0x00 && pCode[8] == 0x00 && |
| 322 | pCode[9] == 0x00) { |
| 323 | return 10; |
| 324 | } |
| 325 | if (pCode[0] == 0x66 && pCode[1] == 0x66 && pCode[2] == 0x66 && |
| 326 | pCode[3] == 0x0F && pCode[4] == 0x1F && pCode[5] == 0x84 && |
| 327 | pCode[6] == 0x00 && pCode[7] == 0x00 && pCode[8] == 0x00 && |
| 328 | pCode[9] == 0x00 && pCode[10] == 0x00) { |
| 329 | return 11; |
| 330 | } |
| 331 | |
| 332 | // int 3. |
| 333 | if (pCode[0] == 0xcc) { |
| 334 | return 1; |
| 335 | } |
| 336 | return 0; |
| 337 | } |
| 338 | |