Messages in this thread |  | | Date | Sat, 20 Jul 96 19:38 +0200 | From | (Olaf Titz) |
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Newsgroups: linux.dev.kernel Path: not-for-mail From: Olaf Titz <olaf@bigred.inka.de> Subject: Re: Dumping /dev/zero to the console Message-ID: <duurne.ayk@bigred.inka.de> Date: 20 Jul 1996 19:37:59 +0200 References: <199607182022.PAA10655@nixnet.qrp.com> Organization: private Linux site, southern Germany Lines: 24
Webmaster <Nathan.Lewis@nixnet.qrp.com> wrote: > Is there any reason /dev/zero should be readable by normal users, or > is it safe to chmod it so that nobody pulls this stunt? Just
There is no reason why it should _not_ be readable. More, any user can simulate /dev/zero by this one:
#include <unistd.h> int main(int argc, char *argv[]) { char b[1]={ 0 }; while (1) { (void) write(1, &b, 1); } }
It's clearly the memory management that needs to be fixed.
olaf -- ___ Olaf.Titz@inka.de or @{stud,informatik}.uni-karlsruhe.de ____ __ o <URL:http://www.inka.de/~bigred/> <IRC:praetorius> __/<_ >> Just as long as the wheels keep on turning round _)>(_)______________ I will live for the groove 'til the sun goes down << ____
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