cosmopolitan/libc/sysv/calls/sys_faccessat2.s
Justine Tunney e81edf7b04 Improve pledge() and unveil()
The pledge.com command now supports the new [WIP] unveil() support. For
example, to strongly sandbox our command for listing directories.

    o//tool/build/assimilate.com o//examples/ls.com
    pledge.com -v /etc -p 'stdio rpath' o//examples/ls.com /etc

This file system sandboxing is going to be perfect for us, because APE
binaries are self-contained static executables that really don't use the
filesystem that much. On the other hand, with non-static executables,
sandboxing is going to be more difficult. For example, here's how to
sandbox the `ls` command on the latest Alpine:

    pledge.com -v rx:/lib -v /usr/lib -v /etc -p 'stdio rpath exec' ls /etc

This change fixes the `execpromises` API with pledge().

This change also adds unix.unveil() to redbean.

Fixes #494
2022-07-18 07:58:20 -07:00

2 lines
97 B
ArmAsm

.include "o/libc/sysv/macros.internal.inc"
.scall sys_faccessat2,0xfffffffffffff1b7,globl,hidden