add directory gnu

2024-02-19 00:24:47 -05:00
parent 32616db5a4
commit a40f4cadb0
5086 changed files with 1860970 additions and 0 deletions
--- a/gnu/glibc/glibc-1.05.tar/glibc-1.05/hurd/__setauth.c
+++ b/gnu/glibc/glibc-1.05.tar/glibc-1.05/hurd/__setauth.c
@@ -0,0 +1,106 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <hurd.h>
+#include <gnu-stabs.h>
+
+/* Things in the library which want to be run when the auth port changes.  */
+const struct
+  {
+    size_t n;
+    void (*fn[0]) (auth_t new_auth);
+  } _hurd_reauth_hook;
+
+
+static struct mutex reauth_lock;
+
+
+/* Set the auth port to NEW, and reauthenticate
+   everything used by the library.  */
+int
+__setauth (auth_t new)
+{
+  error_t err;
+  auth_t old;
+  int d;
+  mach_port_t newport;
+  void (**fn) (auth_t);
+
+  /* Give the new send right a user reference.
+     This is a good way to check that it is valid.  */
+  if (__mach_port_mod_refs (__mach_task_self (), new,
+			    MACH_PORT_RIGHT_SEND, 1))
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  /* We lock against another thread doing setauth.
+     Anyone who sets _hurd_auth some other way is asking to lose.  */
+  __mutex_lock (&reauth_lock);
+
+  /* Install the new port in the _hurd_auth cell.  */
+  __mutex_lock (&_hurd_idlock);
+  _hurd_port_set (&_hurd_auth, new);
+  _hurd_id_valid = 0;
+  __mutex_unlock (&_hurd_idlock);
+
+  if (_hurd_init_dtable != NULL)
+    /* We just have the simple table we got at startup.
+       Otherwise, a reauth_hook in dtable.c takes care of this.  */
+    for (d = 0; d < _hurd_init_dtablesize; ++d)
+      if (_hurd_init_dtable[d] != MACH_PORT_NULL)
+	{
+	  mach_port_t new;
+	  if (! __io_reauthenticate (_hurd_init_dtable[d]) &&
+	      ! _HURD_PORT_USE (&_hurd_auth,
+				__auth_user_authenticate (_hurd_init_dtable[d],
+							  &new)))
+	    {
+	      __mach_port_deallocate (__mach_task_self (),
+				      _hurd_init_dtable[d]);
+	      _hurd_init_dtable[d] = new;
+	    }
+	}
+
+  if (_HURD_PORT_USE (&_hurd_crdir,
+		      ! __io_reauthenticate (port) &&
+		      ! __auth_user_authenticate (new, port, &newport)))
+    _hurd_port_set (&_hurd_crdir, newport);
+
+  if (_HURD_PORT_USE (&_hurd_cwdir,
+		      ! __io_reauthenticate (port) &&
+		      ! __auth_user_authenticate (new, port, &newport)))
+    _hurd_port_set (&_hurd_cwdir, newport);
+
+  /* Run things which want to do reauthorization stuff.  */
+  for (fn = _hurd_reauth_hook.fn; *fn != NULL; ++fn)
+    (**fn) (new);
+
+  __mutex_unlock (&reauth_lock);
+
+  return 0;
+}
+
+static void
+init_reauth (void)
+{
+  __mutex_init (&reauth_lock);
+}
+
+text_set_element (__libc_subinit, init_reauth);