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TMPFILE(3) Linux Programmer's Manual TMPFILE(3)

NAME

tmpfile - create a temporary file

SYNOPSIS

#include <stdio.h>

FILE *tmpfile (void);

DESCRIPTION

The tmpfile() function generates a unique temporary filename using the path prefix P_tmpdir defined in <stdio.h>. The temporary file is then opened in binary read/write (w+b) mode. The file will be automatically deleted when it is closed or the program terminates.

RETURN VALUE

The tmpfile() function returns a stream descriptor, or NULL if a unique filename cannot be generated or the unique file cannot be opened.

ERRORS

EACCES
Search permission denied for directory in file's path prefix.
EEXIST
Unable to generate a unique filename.
EMFILE
Too many file descriptors in use by process.
ENFILE
Too many files open in system.
EROFS
Read-only filesystem.

CONFORMING TO

SVID 3, POSIX, BSD 4.3, ISO 9899, SUSv2

SEE ALSO

mktemp(3), mkstemp(3), tmpnam(3), tempnam(3)
April 3, 1993 GNU