GNU/Linux | 
					Debian 6.0.9(Squeeze) | 
					|
![]()  | 
					tmpfile(3) | 
					![]()  | 
				
tmpfile − create a temporary file
#include <stdio.h>
FILE *tmpfile(void);
The tmpfile() function opens a unique temporary file in binary read/write (w+b) mode. The file will be automatically deleted when it is closed or the program terminates.
The tmpfile() function returns a stream descriptor, or NULL if a unique filename cannot be generated or the unique file cannot be opened. In the latter case, errno is set to indicate the error.
| 
 EACCES  | 
 Search permission denied for directory in file’s path prefix.  | ||
| 
 EEXIST  | 
 Unable to generate a unique filename.  | ||
| 
 EINTR  | 
 The call was interrupted by a signal.  | ||
| 
 EMFILE  | 
 Too many file descriptors in use by the process.  | ||
| 
 ENFILE  | 
 Too many files open in the system.  | ||
| 
 ENOSPC  | 
 There was no room in the directory to add the new filename.  | ||
| 
 EROFS  | 
 Read-only file system.  | 
SVr4, 4.3BSD, C89, C99, SUSv2, POSIX.1-2001.
POSIX.1-2001 specifies: an error message may be written to stdout if the stream cannot be opened.
The standard does not specify the directory that tmpfile() will use. Glibc will try the path prefix P_tmpdir defined in <stdio.h>, and if that fails the directory /tmp.
exit(3), mkstemp(3), mktemp(3), tempnam(3), tmpnam(3)
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
![]()  | 
				tmpfile(3) | ![]()  |