Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 68 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/mach/hurd/tmpfile.c b/REORG.TODO/sysdeps/mach/hurd/tmpfile.c
new file mode 100644
index 0000000000..8bcfb81a10
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/tmpfile.c
@@ -0,0 +1,68 @@
+/* Open a stdio stream on an anonymous temporary file.  Hurd version.
+   Copyright (C) 2001-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <hurd.h>
+#include <hurd/fs.h>
+#include <hurd/fd.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <iolibio.h>
+
+/* This returns a new stream opened on a temporary file (generated
+   by tmpnam).  The file is opened with mode "w+b" (binary read/write).
+   If we couldn't generate a unique filename or the file couldn't
+   be opened, NULL is returned.  */
+FILE *
+__tmpfile (void)
+{
+  error_t err;
+  file_t file;
+  int fd;
+  FILE *f;
+
+  /* Get a port to the directory that will contain the file.  */
+  const char *dirname = __libc_secure_getenv ("TMPDIR") ?: P_tmpdir;
+  file_t dir = __file_name_lookup (dirname, 0, 0);
+  if (dir == MACH_PORT_NULL)
+    return NULL;
+
+  /* Create an unnamed file in the temporary directory.  */
+  err = __dir_mkfile (dir, O_RDWR, S_IRUSR | S_IWUSR, &file);
+  __mach_port_deallocate (__mach_task_self (), dir);
+  if (err)
+    return __hurd_fail (err), NULL;
+
+  /* Get a file descriptor for that port.  POSIX.1 requires that streams
+     returned by tmpfile allocate file descriptors as fopen would.  */
+  fd = _hurd_intern_fd (file, O_RDWR, 1); /* dealloc on error */
+  if (fd < 0)
+    return NULL;
+
+  /* Open a stream on the unnamed file.
+     It will cease to exist when this stream is closed.  */
+  if ((f = _IO_fdopen (fd, "w+b")) == NULL)
+    __close (fd);
+
+  return f;
+}
+
+#include <shlib-compat.h>
+versioned_symbol (libc, __tmpfile, tmpfile, GLIBC_2_1);
+
+weak_alias (__tmpfile, tmpfile64)