#else
// Okay, looks like we have to do it all by our lonesome.
static unsigned FCounter = 0;
- unsigned offset = path.size() + 1;
- while ( FCounter < 999999 && exists()) {
- sprintf(FNBuffer+offset,"%06u",++FCounter);
+ // Try to initialize with unique value.
+ if (FCounter == 0) FCounter = ((unsigned)getpid() & 0xFFFF) << 8;
+ char* pos = strstr(FNBuffer, "XXXXXX");
+ do {
+ if (++FCounter > 0xFFFFFF) {
+ return MakeErrMsg(ErrMsg,
+ path + ": can't make unique filename: too many files");
+ }
+ sprintf(pos, "%06X", FCounter);
path = FNBuffer;
- }
- if (FCounter > 999999)
- return MakeErrMsg(ErrMsg,
- path + ": can't make unique filename: too many files");
+ } while (exists());
+ // POSSIBLE SECURITY BUG: An attacker can easily guess the name and exploit
+ // LLVM.
#endif
return false;
}