Mike Hunter <[EMAIL PROTECTED]> writes: > I have a feeling that I'm missing something really obvious, but I'm having > trouble understanding why the following program: > [...] > Never prints anything but "0"'s.
Because the kernel always hands processes pre-zeroed pages. > I ran less up to my hw.physmem by feeding it /dev/random and watching > top, and then ran the program, so I "know" there was tons of non-zero > bits in memory. If your program had been able to see leftovers from less in its own address space, we'd have a huge security hole on our hands. > I'm curious because I am worried about information leaks between processes > on the same machine...did somebody decide to solve this problem while I > wasn't paying attention? :) It's always been this way. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
