Messages in this thread |  | | Date | Fri, 17 Nov 2000 12:34:01 +0100 | From | Matthias Andree <> | Subject | Re: Linux 2.2.18pre21 |
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On Thu, 16 Nov 2000, H. Peter Anvin wrote:
> BUG: you *MUST* chdir() into the chroot jail before it does you any > good at all! > > I usually recommend:
#include <sysexits.h> /* for EX_NOUSER */
> mkdir("foo"); > chdir("foo"); > chroot(".");
add this:
/* DO REPLACE 500 BY AN EXISTING USER ID */ /* DO NOT REPLACE IT BY 0! */ /* DO NOT USE OTHER FUNCTIONS THAN setuid() */ if(setuid(500)) { _exit(EX_NOUSER); }
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