os cleanup.

dir_* and stat_* are just os specific,
not os+arch-specific.

R=r
http://go/go-review/1018010

1 files changed, 38 insertions, 0 deletions

diff --git a/src/pkg/os/stat_linux.go b/src/pkg/os/stat_linux.go
new file mode 100644
index 0000000000..fe4193a5b8
--- /dev/null
+++ b/src/pkg/os/stat_linux.go
@@ -0,0 +1,38 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package os
+
+import "syscall"
+
+func isSymlink(stat *syscall.Stat_t) bool {
+	return stat.Mode & syscall.S_IFMT == syscall.S_IFLNK;
+}
+
+func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
+	dir.Dev = stat.Dev;
+	dir.Ino = uint64(stat.Ino);
+	dir.Nlink = uint64(stat.Nlink);
+	dir.Mode = stat.Mode;
+	dir.Uid = stat.Uid;
+	dir.Gid = stat.Gid;
+	dir.Rdev = stat.Rdev;
+	dir.Size = uint64(stat.Size);
+	dir.Blksize = uint64(stat.Blksize);
+	dir.Blocks = uint64(stat.Blocks);
+	dir.Atime_ns = uint64(syscall.TimespecToNsec(stat.Atim));
+	dir.Mtime_ns = uint64(syscall.TimespecToNsec(stat.Mtim));
+	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctim));
+	for i := len(name)-1; i >= 0; i-- {
+		if name[i] == '/' {
+			name = name[i+1 : len(name)];
+			break;
+		}
+	}
+	dir.Name = name;
+	if isSymlink(lstat) && !isSymlink(stat) {
+		dir.FollowedSymlink = true;
+	}
+	return dir;
+}