diff options
Diffstat (limited to 'internal/syscallcompat')
| -rw-r--r-- | internal/syscallcompat/sys_common.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/internal/syscallcompat/sys_common.go b/internal/syscallcompat/sys_common.go index aedc4da..b6bbdff 100644 --- a/internal/syscallcompat/sys_common.go +++ b/internal/syscallcompat/sys_common.go @@ -29,6 +29,21 @@ 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 { |