Initial revision

1 files changed, 67 insertions, 0 deletions

diff --git a/libshouldbeinlibc/xportinfo.c b/libshouldbeinlibc/xportinfo.c
new file mode 100644
index 00000000..0ad7da48
--- /dev/null
+++ b/libshouldbeinlibc/xportinfo.c
@@ -0,0 +1,67 @@
+/* Print information about a port, with the name translated between tasks
+
+   Copyright (C) 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 "portinfo.h"
+
+/* Prints info about NAME translated through X to STREAM, in a way described
+   by the flags in SHOW.  If TYPE is non-zero, it should be what
+   mach_port_type returns for NAME in X->to_task.  */
+error_t
+print_xlated_port_info (mach_port_t name, mach_port_type_t type,
+			struct port_name_xlator *x,
+			unsigned show, FILE *stream)
+{
+  mach_port_t old_name = name;
+  error_t err = port_name_xlator_xlate (x, name, type, &name, &type);
+  if (! err)
+    {
+      fprintf (stream, (show & PORTINFO_HEX_NAMES) ? "%#6x => " : "%6d => ",
+	       old_name);
+      err = print_port_info (name, type, x->to_task, show, stream);
+    }
+  return err;
+}
+
+/* Prints info about every port common to both tasks in X, but only if the
+   port in X->from_task has a type in ONLY, to STREAM.  */
+error_t
+print_xlated_ports_info (struct port_name_xlator *x, mach_port_type_t only,
+			 unsigned show, FILE *stream)
+{
+  mach_port_t *names = 0;
+  mach_port_type_t *types = 0;
+  mach_msg_type_number_t names_len = 0, types_len = 0, i;
+  error_t err =
+    mach_port_names (x->from_task, &names, &names_len, &types, &types_len);
+
+  if (err)
+    return err;
+
+  for (i = 0; i < names_len; i++)
+    if (types[i] & only)
+      print_xlated_port_info (names[i], types[i], x, show, stream);
+
+  vm_deallocate (mach_task_self (),
+		 (vm_address_t)names, names_len * sizeof *names);
+  vm_deallocate (mach_task_self (),
+		 (vm_address_t)types, types_len * sizeof *types);
+
+  return 0;
+}