diff options
| -rw-r--r-- | internal/syscallcompat/sys_common.go | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/internal/syscallcompat/sys_common.go b/internal/syscallcompat/sys_common.go index 440b42f..896aaf7 100644 --- a/internal/syscallcompat/sys_common.go +++ b/internal/syscallcompat/sys_common.go @@ -1,6 +1,8 @@ package syscallcompat import ( + "syscall" + "golang.org/x/sys/unix" ) @@ -21,3 +23,18 @@ 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) +} |