Initial revision

1 files changed, 153 insertions, 0 deletions

diff --git a/utils/hurdids.c b/utils/hurdids.c
new file mode 100644
index 00000000..b2d8cb2c
--- /dev/null
+++ b/utils/hurdids.c
@@ -0,0 +1,153 @@
+/* Show all hurd ids
+
+   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   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. */
+
+#include <hurd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <argp.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include <error.h>
+#include <hurd/id.h>
+
+static struct argp_option options[] =
+{
+  {"effective", 'e', 0, 0, "Show effective ids"},
+  {"available", 'a', 0, 0, "Show available ids"},
+  {"uids",      'u', 0, 0, "Show user ids"},
+  {"gids",      'g', 0, 0, "Show group ids"},
+  {"names",     'n', 0, 0, "Show names of uids/gids"},
+  {"ids",       'i', 0, 0, "Show numeric uids/gids"},
+  {0}
+};
+static char *args_doc = 0;
+static char *doc = 0;
+
+/* ---------------------------------------------------------------- */
+
+void 
+main(int argc, char *argv[])
+{
+  error_t err;
+  int show_eff = 0, show_avail = 0, show_uids = 0, show_gids = 0;
+  int show_names = 0, show_ids = 0;
+
+  /* Parse a command line option.  */
+  error_t parse_opt (int key, char *arg, struct argp_state *state)
+    {
+      switch (key)
+	{
+	case 'e': show_eff = 1; break;
+	case 'a': show_avail = 1; break;
+	case 'u': show_uids = 1; break;
+	case 'g': show_gids = 1; break;
+	case 'n': show_names = 1; break;
+	case 'i': show_ids = 1; break;
+	default:  return EINVAL;
+	}
+      return 0;
+    }
+
+  struct argp argp = {options, parse_opt, args_doc, doc};
+
+  argp_parse (&argp, argc, argv, 0, 0);
+
+  if (! show_eff && ! show_avail)
+    show_eff = show_avail = 1;
+  if (! show_uids && ! show_gids)
+    show_uids = show_gids = 1;
+  if (! show_names && ! show_ids)
+    show_names = show_ids = 1;
+
+  mutex_lock (&_hurd_id.lock);
+  err = _hurd_check_ids ();
+  mutex_unlock (&_hurd_id.lock);
+
+  if (err)
+    error (2, err, "Can't update ids");
+  else
+    {
+      typedef typeof (_hurd_id.gen) *ids_t;
+      void print_ids (ids_t ids, char *name)
+	{
+	  int i;
+
+	  if (show_uids)
+	    {
+	      if (name && show_gids)
+		printf ("%s uids: ", name);
+	      else if (show_gids)
+		printf ("uids: ");
+	      else if (name)
+		printf ("%s: ", name);
+
+	      for (i = 0; i < ids->nuids; i++)
+		{
+		  uid_t uid = ids->uids[i];
+		  struct passwd *pw = show_names ? getpwuid (uid) : 0;
+		  if (i > 0)
+		    putchar (' ');
+		  if (pw)
+		    if (show_ids)
+		      printf ("%d(%s)", uid, pw->pw_name);
+		    else
+		      printf ("%s", pw->pw_name);
+		  else
+		    printf ("%d", uid);
+		}
+	      putchar ('\n');
+	    }
+	  if (show_gids)
+	    {
+	      if (name && show_uids)
+		printf ("%s gids: ", name);
+	      else if (show_uids)
+		printf ("gids: ");
+	      else if (name)
+		printf ("%s: ", name);
+		
+	      for (i = 0; i < ids->ngids; i++)
+		{
+		  gid_t gid = ids->gids[i];
+		  struct group *gr = show_names ? getgrgid (gid) : 0;
+		  if (i > 0)
+		    putchar (' ');
+		  if (gr)
+		    if (show_ids)
+		      printf ("%d(%s)", gid, gr->gr_name);
+		    else
+		      printf ("%s", gr->gr_name);
+		  else
+		    printf ("%d", gid);
+		}
+	      putchar ('\n');
+	    }
+	}
+      if (show_eff)
+	print_ids (&_hurd_id.gen, show_avail ? "effective" : 0);
+      if (show_avail)
+	print_ids (&_hurd_id.aux, show_eff ? "available" : 0);
+    }
+
+  exit(0);
+}