Deprecate external use of libio.h and _G_config.h.

[thirdparty/glibc.git] / stdio-common / tmpfile.c

diff --git a/stdio-common/tmpfile.c b/stdio-common/tmpfile.c
index 488b43b1f7452a6a5947083d17ca80d11f4721db..c5cbb688f46f55422d4624d8893087831f2733d7 100644 (file)
--- a/stdio-common/tmpfile.c
+++ b/stdio-common/tmpfile.c
@@ -1,49 +1,77 @@
-/* Copyright (C) 1991, 1993, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Open a stdio stream on an anonymous temporary file.  Generic/POSIX version.
+   Copyright (C) 1991-2017 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
-   Library General Public License for more details.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   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 <fcntl.h>
 #include <stdio.h>
+#include <unistd.h>
 
-#ifdef _USE_IN_LIBIO
-# define fdopen _IO_new_fdopen
+#include <iolibio.h>
+#define __fdopen _IO_fdopen
+#ifndef tmpfile
+# define tmpfile __new_tmpfile
 #endif
 
+
 /* This returns a new stream opened on a temporary file (generated
-   by tmpnam) The file is opened with mode "w+b" (binary read/write).
+   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 ()
+tmpfile (void)
 {
-  char buf[FILENAME_MAX];
   int fd;
   FILE *f;
+  int flags = 0;
+#ifdef FLAGS
+  flags = FLAGS;
+#endif
+
+  /* First try a system specific method.  */
+  fd = __gen_tempfd (flags);
+
+  if (fd < 0)
+    {
+      char buf[FILENAME_MAX];
+
+      if (__path_search (buf, sizeof buf, NULL, "tmpf", 0))
+       return NULL;
 
-  if (__path_search (buf, FILENAME_MAX, NULL, "tmpf"))
-    return NULL;
-  if ((fd = __gen_tempname (buf, 1, 0)) < 0)
-    return NULL;
+      fd = __gen_tempname (buf, 0, flags, __GT_FILE);
+      if (fd < 0)
+       return NULL;
 
-  /* Note that this relies on the Unix semantics that
-     a file is not really removed until it is closed.  */
-  (void) remove (buf);
+      /* Note that this relies on the Unix semantics that
+        a file is not really removed until it is closed.  */
+      (void) __unlink (buf);
+    }
 
-  if ((f = fdopen (fd, "w+b")) == NULL)
-    close (fd);
+  if ((f = __fdopen (fd, "w+b")) == NULL)
+    __close (fd);
 
   return f;
 }
+
+#if !defined O_LARGEFILE || O_LARGEFILE == 0
+weak_alias (__new_tmpfile, tmpfile64)
+#endif
+
+#ifndef FLAGS /* Not for tmpfile64.  */
+# undef tmpfile
+# include <shlib-compat.h>
+versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
+#endif