--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/DLD-FUNCTIONS/getgrent.cc	Mon May 05 05:33:54 1997 +0000
@@ -0,0 +1,234 @@
+/*
+
+Copyright (C) 1996, 1997 John W. Eaton
+
+This file is part of Octave.
+
+Octave 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.
+
+Octave 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 Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string>
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+
+#include "defun-dld.h"
+#include "error.h"
+#include "gripes.h"
+#include "help.h"
+#include "oct-map.h"
+#include "ov.h"
+#include "oct-obj.h"
+#include "utils.h"
+
+// Group file functions.  (Why not?)
+
+static octave_value
+mk_gr_map (struct group *gr)
+{
+  octave_value retval;
+
+  if (gr)
+    {
+      Octave_map m;
+
+      m ["name"] = gr->gr_name;
+#if defined (HAVE_GR_PASSWD)
+      m ["passwd"] = gr->gr_passwd;
+#else
+      m ["passwd"] = "";
+#endif
+      m ["gid"] = static_cast<double> (gr->gr_gid);
+
+      if (gr->gr_mem)
+	{
+	  // XXX FIXME XXX -- maybe there should be a string_vector
+	  // constructor that takes a NULL terminated list of C
+	  // strings.
+
+	  char **tmp = gr->gr_mem;
+
+	  int k = 0;
+	  while (*tmp++)
+	    k++;
+
+	  if (k > 0)
+	    {
+	      tmp = gr->gr_mem;
+
+	      string_vector members (k);
+
+	      for (int i = 0; i < k; i++)
+		members[i] = tmp[i];
+
+	      m ["mem"] = members;
+	    }
+	  else
+	    m ["mem"] = "";
+	}
+
+      retval = m;
+    }
+  else
+    retval = 0.0;
+
+  return retval;
+}
+
+DEFUN_DLD (getgrent, args, ,
+ "getgrent ()\n\
+\n\
+Read an entry from the group-file stream, opening it if necessary.")
+{
+  octave_value retval;
+
+  int nargin = args.length ();
+
+  if (nargin == 0)
+    {
+#ifdef HAVE_GETGRENT
+      retval = mk_gr_map (getgrent ());
+#else
+      gripe_not_supported ("getgrent");
+#endif
+    }
+  else
+    print_usage ("getgrent");
+
+  return retval;
+}
+
+DEFUN_DLD (getgrgid, args, ,
+  "getgrgid (GID)\n\
+\n\
+Search for a group entry with a matching group ID.")
+{
+  octave_value retval;
+
+  int nargin = args.length ();
+
+  if (nargin == 1)
+    {
+#ifdef HAVE_GETGRGID
+      double dval = args(0).double_value ();
+
+      if (! error_state)
+	{
+	  if (D_NINT (dval) == dval)
+	    {
+	      gid_t gid = static_cast<gid_t> (dval);
+
+	      retval = mk_gr_map (getgrgid (gid));
+	    }
+	  else
+	    error ("getgrgid: argument must be an integer");
+	}
+#else
+      gripe_not_supported ("getgrgid");
+#endif
+    }
+  else
+    print_usage ("getgrgid");
+
+  return retval;
+}
+
+DEFUN_DLD (getgrnam, args, ,
+  "getgrnam (NAME)\n\
+\n\
+Search for group entry with a matching group name.")
+{
+  octave_value retval;
+
+  int nargin = args.length ();
+
+  if (nargin == 1)
+    {
+#ifdef HAVE_GETGRNAM
+      string s = args(0).string_value ();
+
+      if (! error_state)
+	retval = mk_gr_map (getgrnam (s.c_str ()));
+#else
+      gripe_not_supported ("getgrnam");
+#endif
+    }
+  else
+    print_usage ("getgrnam");
+
+  return retval;
+}
+
+DEFUN_DLD (setgrent, args, ,
+  "setgrent ()\n\
+\n\
+Rewind the group-file stream.")
+{
+  octave_value retval;
+
+  int nargin = args.length ();
+
+  if (nargin == 0)
+    {
+#ifdef HAVE_SETGRENT
+      setgrent ();
+#else
+      gripe_not_supported ("setgrent");
+#endif
+    }
+  else
+    print_usage ("setgrent");
+
+  return retval;
+}
+
+DEFUN_DLD (endgrent, args, ,
+  "endgrent ()\n\
+\n\
+Close the group-file stream.")
+{
+  octave_value retval;
+
+  int nargin = args.length ();
+
+  if (nargin == 0)
+    {
+#ifdef HAVE_ENDGRENT
+      endgrent ();
+#else
+      gripe_not_supported ("endgrent");
+#endif
+    }
+  else
+    print_usage ("endgrent");
+
+  return retval;
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/