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



NAME
       tmpfile - create a temporary file

SYNOPSIS
       #include <stdio.h>

       FILE *tmpfile (void);

DESCRIPTION
       The  tmpfile() function generates a unique temporary file-
       name.   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  nor-
       mally.

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. In the latter case, errno is
       set to indicate the error.

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 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 filesystem.

       EINTR  The call was interrupted by a signal.


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

NOTES
       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.

SEE ALSO
       exit(t), mktemp(p), mkstemp(p), tmpnam(m), tempnam(m)



                            2001-11-17                 TMPFILE(E)