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-rw-r--r--sysdeps/mach/hurd/tmpfile.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/tmpfile.c b/sysdeps/mach/hurd/tmpfile.c
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+++ b/sysdeps/mach/hurd/tmpfile.c
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+/* Open a stdio stream on an anonymous temporary file. Hurd version.
+ Copyright (C) 2001 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 <hurd.h>
+#include <hurd/fs.h>
+#include <fcntl.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)
+{
+ error_t err;
+ file_t file;
+ FILE *f;
+
+ /* Get a port to the directory that will contain the file. */
+ const char *dirname = __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;
+
+ /* Open a stream on the port to the unnamed file.
+ It will cease to exist when this stream is closed. */
+ if ((f = __fopenport (file, "w+b")) == NULL)
+ __mach_port_deallocate (__mach_task_self (), file);
+
+ return f;
+}
+
+#ifdef USE_IN_LIBIO
+# undef tmpfile
+# include <shlib-compat.h>
+versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
+#endif