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authorRoland McGrath <roland@gnu.org>2001-11-13 10:07:33 +0000
committerRoland McGrath <roland@gnu.org>2001-11-13 10:07:33 +0000
commit27114e2046a5d8b89c2e84bdcc53c42f7381c700 (patch)
tree98c25110b7cbc910340fa19714a1d457cafd6e67 /sysdeps/generic/tmpfile.c
parentc9fc9559ffc7651ee91cf8370ddb1af79caa24c1 (diff)
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* stdio-common/tmpfile.c: Moved to ...
	* sysdeps/generic/tmpfile.c: ... here.
	* sysdeps/mach/hurd/tmpfile.c: New file.

	* hurd/fopenport.c (__fopenport): Renamed from fopenport.
	[USE_IN_LIBIO] (fopencookie): #define as _IO_fopencookie.
	(fopenport): Define as weak alias.

	* libio/iofopncook.c (_IO_fopencookie): Move forward declaration ...
	* libio/libioP.h: ... to here.
Diffstat (limited to 'sysdeps/generic/tmpfile.c')
-rw-r--r--sysdeps/generic/tmpfile.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/generic/tmpfile.c b/sysdeps/generic/tmpfile.c
new file mode 100644
index 0000000000..6d341d63e5
--- /dev/null
+++ b/sysdeps/generic/tmpfile.c
@@ -0,0 +1,60 @@
+/* Open a stdio stream on an anonymous temporary file.  Generic/POSIX version.
+   Copyright (C) 1991,93,96,97,98,99,2000 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdio.h>
+#include <unistd.h>
+
+#ifdef USE_IN_LIBIO
+# include <iolibio.h>
+# define __fdopen _IO_fdopen
+# 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).
+   If we couldn't generate a unique filename or the file couldn't
+   be opened, NULL is returned.  */
+FILE *
+tmpfile (void)
+{
+  char buf[FILENAME_MAX];
+  int fd;
+  FILE *f;
+
+  if (__path_search (buf, FILENAME_MAX, NULL, "tmpf", 0))
+    return NULL;
+  fd = __gen_tempname (buf, __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);
+
+  if ((f = __fdopen (fd, "w+b")) == NULL)
+    __close (fd);
+
+  return f;
+}
+
+#ifdef USE_IN_LIBIO
+# undef tmpfile
+# include <shlib-compat.h>
+versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
+#endif