syscallcompat: drop Faccessat AT_SYMLINK_NOFOLLOW helper

unix.Faccessat has added support for AT_SYMLINK_NOFOLLOW in July 2018,
https://github.com/golang/sys/commit/bd9dbc187b6e1dacfdd2722a87e83093c2d7bd6e#diff-341484dbbe3180cd7a31ef2ad2d679b6
which means we no longer need our own helper.

Closes https://github.com/rfjakob/gocryptfs/issues/347

1 files changed, 0 insertions, 15 deletions

diff --git a/internal/syscallcompat/sys_common.go b/internal/syscallcompat/sys_common.go
index b6bbdff..aedc4da 100644
--- a/internal/syscallcompat/sys_common.go
+++ b/internal/syscallcompat/sys_common.go
@@ -29,21 +29,6 @@ func Readlinkat(dirfd int, path string) (string, error) {
 	}
 }
 
-// Faccessat exists both in Linux and in MacOS 10.10+, but the Linux version
-// DOES NOT support any flags. Emulate AT_SYMLINK_NOFOLLOW like glibc does.
-func Faccessat(dirfd int, path string, mode uint32) error {
-	var st unix.Stat_t
-	err := Fstatat(dirfd, path, &st, unix.AT_SYMLINK_NOFOLLOW)
-	if err != nil {
-		return err
-	}
-	if st.Mode&syscall.S_IFMT == syscall.S_IFLNK {
-		// Pretend that a symlink is always accessible
-		return nil
-	}
-	return unix.Faccessat(dirfd, path, mode, 0)
-}
-
 // Openat wraps the Openat syscall.
 func Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) {
 	if flags&syscall.O_CREAT != 0 {