--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/liboctave/mkdir.c	Fri Sep 15 06:39:28 1995 +0000
@@ -0,0 +1,103 @@
+/* mkdir.c -- BSD compatible make directory function for System V
+   Copyright (C) 1988, 1990 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifndef HAVE_MKDIR
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
+#ifdef STAT_MACROS_BROKEN
+#undef S_ISDIR
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+
+#include "safe-stat.h"
+
+/* mkdir adapted from GNU tar.  */
+
+/* Make directory DPATH, with permission mode DMODE.
+
+   Written by Robert Rother, Mariah Corporation, August 1985
+   (sdcsvax!rmr or rmr@uscd).  If you want it, it's yours.
+
+   Severely hacked over by John Gilmore to make a 4.2BSD compatible
+   subroutine.	11Mar86; hoptoad!gnu
+
+   Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,
+   subroutine didn't return EEXIST.  It does now.  */
+
+int
+mkdir (dpath, dmode)
+     char *dpath;
+     int dmode;
+{
+  int cpid, status;
+  struct stat statbuf;
+
+  if (SAFE_STAT (dpath, &statbuf) == 0)
+    {
+      errno = EEXIST;		/* stat worked, so it already exists.  */
+      return -1;
+    }
+
+  /* If stat fails for a reason other than non-existence, return error.  */
+  if (errno != ENOENT)
+    return -1;
+
+  cpid = fork ();
+  switch (cpid)
+    {
+    case -1:			/* Cannot fork.  */
+      return -1;		/* errno is already set.  */
+
+    case 0:			/* Child process.  */
+      /* Cheap hack to set mode of new directory.  Since this child
+	 process is going away anyway, we zap its umask.
+	 This won't suffice to set SUID, SGID, etc. on this
+	 directory, so the parent process calls chmod afterward.  */
+      status = umask (0);	/* Get current umask.  */
+      umask (status | (0777 & ~dmode));	/* Set for mkdir.  */
+      execl ("/bin/mkdir", "mkdir", dpath, (char *) 0);
+      _exit (1);
+
+    default:			/* Parent process.  */
+      /* Wait for kid to finish.  */
+      while (wait (&status) != cpid)
+	/* Do nothing.  */ ;
+
+      if (status & 0xFFFF)
+	{
+	  /* /bin/mkdir failed.  */
+	  errno = EIO;
+	  return -1;
+	}
+      return chmod (dpath, dmode);
+    }
+}
+
+#endif