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POSIX defines faccessat() as having a fourth "flags" argument, while the linux syscall doesn't have it. Glibc tries to emulate AT_EACCESS and AT_SYMLINK_NOFOLLOW, but AT_EACCESS emulation is broken. Add a new faccessat(2) syscall with the added flags argument and implement both flags. The value of AT_EACCESS is defined in glibc headers to be the same as AT_REMOVEDIR. Use this value for the kernel interface as well, together with the explanatory comment. Also add AT_EMPTY_PATH support, which is not documented by POSIX, but can be useful and is trivial to implement. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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.. | ||
syscalls | ||
vdso | ||
vsyscall | ||
calling.h | ||
common.c | ||
entry_32.S | ||
entry_64_compat.S | ||
entry_64.S | ||
Makefile | ||
syscall_32.c | ||
syscall_64.c | ||
syscall_x32.c | ||
thunk_32.S | ||
thunk_64.S |