| 100,6 → 100,50 |
|---|
| return obfusc_seed2; |
| } |
| |
| #ifdef WIN_ENV |
| Boolean obfusc_seed_replace(FSSpec* dst, uint64_t search1, uint64_t search2, uint64_t replace1, uint64_t replace2, int maxamount1, int maxamount2) { |
| uint64_t srecord = 0; |
| int found1 = 0, found2 = 0; |
| Boolean done = false; |
| FILEREF fptr; |
| FILECOUNT cnt; |
| |
| if (FSpOpenDF(dst, fsRdWrPerm, &fptr) != noErr) return -1; |
| |
| cnt = sizeof(srecord); |
| while (FSRead(fptr, &cnt, &srecord) == noErr) |
| { |
| if (cnt != sizeof(srecord)) break; // EOF reached |
| if (srecord == search1) { |
| srecord = replace1; |
| SetFPos(fptr, fsFromMark, -1 * (long)sizeof(srecord)); |
| cnt = (int)sizeof(srecord); |
| FSWrite(fptr, &cnt, &srecord); |
| SetFPos(fptr, fsFromStart, 0); // important for fseek |
| found1++; |
| done = (found1 == maxamount1) && (found2 == maxamount2); |
| if (done) break; |
| } |
| else if (srecord == search2) { |
| srecord = replace2; |
| SetFPos(fptr, fsFromMark, -1 * (long)sizeof(srecord)); |
| cnt = (int)sizeof(srecord); |
| FSWrite(fptr, &cnt, &srecord); |
| SetFPos(fptr, fsFromStart, 0); // important for fseek |
| found2++; |
| done = (found1 == maxamount1) && (found2 == maxamount2); |
| if (done) break; |
| } |
| else { |
| SetFPos(fptr, fsFromMark, -1 * (long)(sizeof(srecord) - 1)); |
| } |
| } |
| FSClose(fptr); |
| |
| return done; |
| } |
| #endif |
| |
| int rand_msvcc(unsigned int* seed) { |
| *seed = *seed * 214013L + 2531011L; |
| return (*seed >> 16) & 0x7fff; /* Scale between 0 and RAND_MAX */ |
| 322,6 → 366,8 |
|---|
| uint64_t initial_seed, initial_seed2, rolseed; |
| uint32_t xorseed; |
| uint64_t xorseed2; |
| size_t size = sizeof(PARM_T); |
| int rand_iters, i, j; |
| |
| #ifdef MAC_ENV |
| // Currently, make_mac.c does not implement modifying the executable code (TODO), |
| 355,6 → 401,19 |
|---|
| p = (unsigned char*)pparm; |
| rolshift(&p, &rolseed, sizeof(PARM_T)); |
| |
| rand_iters = 0xFFF - (initial_seed & 0xFF) + (initial_seed2 & 0xFF); |
| if (rand_iters < 0) rand_iters = 0; |
| for (j = rand_iters; j >= 0; j--) { |
| uint32_t rand_seed = (initial_seed + initial_seed2 + j) & 0xFFFFFFFF; |
| p = (unsigned char*)pparm; |
| for (i = 0; i < 10; i++) { |
| rand_msvcc(&rand_seed); |
| } |
| for (i = 0; i < (int)size; i++) { |
| *p++ ^= (int)(rand_msvcc(&rand_seed) * 1.0 / ((double)RAND_MAX + 1) * 256); |
| } |
| } |
| |
| xorseed2 = initial_seed2; |
| p = (unsigned char*)pparm; |
| xorshift64(&p, &xorseed2, sizeof(PARM_T)); |
| 495,11 → 554,26 |
|---|
| |
| if (obfusc_version >= 7) { |
| uint64_t xorseed2, initial_seed2; |
| int rand_iters, i, j; |
| |
| initial_seed2 = GetObfuscSeed2(); // this value will be manipulated during the building of each individual filter (see make_win.c) |
| xorseed2 = initial_seed2; |
| p = (unsigned char*)pparm; |
| xorshift64(&p, &xorseed2, sizeof(PARM_T)); |
| |
| rand_iters = 0xFFF - (initial_seed & 0xFF) + (initial_seed2 & 0xFF); |
| if (rand_iters < 0) rand_iters = 0; |
| for (j = 0; j <= rand_iters; j++) { |
| uint32_t rand_seed = (initial_seed + initial_seed2 + j) & 0xFFFFFFFF; |
| p = (unsigned char*)pparm; |
| for (i = 0; i < 10; i++) { |
| rand_msvcc(&rand_seed); |
| } |
| for (i = 0; i < (int)size; i++) { |
| *p++ ^= (int)(rand_msvcc(&rand_seed) * 1.0 / ((double)RAND_MAX + 1) * 256); |
| } |
| } |
| } |
| |
| rolseed = initial_seed; |
| p = (unsigned char*)pparm; |