missing darwin files; g4 nothave.

R=r
DELTA=115  (115 added, 0 deleted, 0 changed)
OCL=29884
CL=29888

src/lib/os/dir_darwin_386.go

+// 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 (
+	"os";
+	"syscall";
+	"unsafe";
+)
+
+const (
+	blockSize = 4096	// TODO(r): use statfs
+)
+
+// Negative count means read until EOF.
+func readdirnames(file *File, count int) (names []string, err Error) {
+	// If this file has no dirinfo, create one.
+	if file.dirinfo == nil {
+		file.dirinfo = new(dirInfo);
+		// The buffer must be at least a block long.
+		// TODO(r): use fstatfs to find fs block size.
+		file.dirinfo.buf = make([]byte, blockSize);
+	}
+	d := file.dirinfo;
+	size := count;
+	if size < 0 {
+		size = 100
+	}
+	names = make([]string, 0, size);	// Empty with room to grow.
+	for count != 0 {
+		// Refill the buffer if necessary
+		if d.bufp >= d.nbuf {
+			var errno int;
+			d.bufp = 0;
+			// Final argument is (basep *uintptr) and the syscall doesn't take nil.
+			d.nbuf, errno = syscall.Getdirentries(file.fd, d.buf, new(uintptr));
+			if errno != 0 {
+				d.nbuf = 0;
+				return names, ErrnoToError(errno)
+			}
+			if d.nbuf == 0 {
+				break	// EOF
+			}
+		}
+		// Drain the buffer
+		for count != 0 && d.bufp < d.nbuf {
+			dirent := (*syscall.Dirent)(unsafe.Pointer(&d.buf[d.bufp]));
+			if dirent.Reclen == 0 {
+				d.bufp = d.nbuf;
+				break
+			}
+			d.bufp += int(dirent.Reclen);
+			if dirent.Ino == 0 {	// File absent in directory.
+				continue
+			}
+			bytes := (*[len(dirent.Name)]byte)(unsafe.Pointer(&dirent.Name[0]));
+			var name = string(bytes[0:dirent.Namlen]);
+			if name == "." || name == ".." {	// Useless names
+				continue
+			}
+			count--;
+			if len(names) == cap(names) {
+				nnames := make([]string, len(names), 2*len(names));
+				for i := 0; i < len(names); i++ {
+					nnames[i] = names[i]
+				}
+				names = nnames;
+			}
+			names = names[0:len(names)+1];
+			names[len(names)-1] = name;
+		}
+	}
+	return names, nil
+}

src/lib/os/stat_darwin_386.go

+// 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.
+
+// 386, Darwin
+
+package os
+
+import syscall "syscall"
+import os "os"
+
+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 = uint64(stat.Dev);
+	dir.Ino = stat.Ino;
+	dir.Nlink = uint64(stat.Nlink);
+	dir.Mode = uint32(stat.Mode);
+	dir.Uid = stat.Uid;
+	dir.Gid = stat.Gid;
+	dir.Rdev = uint64(stat.Rdev);
+	dir.Size = uint64(stat.Size);
+	dir.Blksize = uint64(stat.Blksize);
+	dir.Blocks = uint64(stat.Blocks);
+	dir.Atime_ns = uint64(syscall.TimespecToNsec(stat.Atimespec));
+	dir.Mtime_ns = uint64(syscall.TimespecToNsec(stat.Mtimespec));
+	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctimespec));
+	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;
+}