Re: The open() system call in f8 really broken...
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David Woodhouse writes: > On Thu, 2007-08-16 at 05:39 -0400, Alan Cox wrote: > > Sorry ignore the previous email I misunderstood what was going on. > > > > You can open a file O_CREAT with neither read or write, you can open a file > > with O_CREAT|O_WRONLY but not give permissions in the file mode. You must > > provide the third argument so the abort is right. If you don't then the permissions > > are set based on the random values (eg the return address) > > Return address? > > Even on crappy register-starved architectures like i386 we'd have the > three arguments in registers, wouldn't we? No: in userland all args are passed on the stack. subl $24, %esp #, movl $66, 4(%esp) #, movl $.LC0, (%esp) #, call open # Andrew. -- Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, UK Registered in England and Wales No. 3798903 -- Fedora-maintainers mailing list Fedora-maintainers@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-maintainers -- Fedora-maintainers-readonly mailing list Fedora-maintainers-readonly@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-maintainers-readonly
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