NAME

       mktemp - make a unique filename (LEGACY)

SYNOPSIS

       #include <stdlib.h>

       char *mktemp(char *template);

DESCRIPTION

       The  mktemp()  function  shall  replace  the  contents  of  the string pointed to by template by a unique
       filename and return template. The application shall  initialize  template  to  be  a  filename  with  six
       trailing  'X'  s; mktemp() shall replace each 'X' with a single byte character from the portable filename
       character set.

RETURN VALUE

       The mktemp() function shall return the pointer template.  If a unique name cannot  be  created,  template
       shall point to a null string.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Generating a Filename
       The  following  example  replaces  the  contents  of  the  "template" string with a 10-character filename
       beginning with the characters "file" and returns a pointer to the "template" string that contains the new
       filename.

              #include <stdlib.h>
              ...
              char *template = "/tmp/fileXXXXXX";
              char *ptr;

              ptr = mktemp(template);

APPLICATION USAGE

       Between the time a pathname is created and the file opened, it is possible  for  some  other  process  to
       create  a  file with the same name. The mkstemp() function avoids this problem and is preferred over this
       function.

RATIONALE

       None.

FUTURE DIRECTIONS

       This function may be withdrawn in a future version.

SEE ALSO

       mkstemp() , tmpfile() , tmpnam() , the Base Definitions volume of IEEE Std 1003.1-2001, <stdlib.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open  Group  Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc  and  The  Open Group. In the event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard  is  the  referee  document.  The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                                             MKTEMP(P)