mktemp

Purpose

     Constructs a unique file name.

Library

     Standard C Library (libc.a)

Syntax

     char *mktemp (template)
     char *template;

Description

     The mktemp subroutine replaces the contents of the string
     pointed to by  the template parameter with  a unique file
     name.

     The string in the template  parameter must be a file name
     with six  trailing "X"s.  The mktemp  subroutine replaces
     the "X"s with a randomly generated character sequence.

     Upon successful completion, the mktemp subroutine returns
     the  address of  the string  pointed to  by the  template
     parameter.

     If the string  pointed to by the  template parameter con-
     tains  no "X"s,  or if  mktemp is  unable to  construct a
     unique file  name from  the randomly  generated character
     sequence, then the first character of the template string
     is replaced with a null character.

Related Information

     In this book:  "getpid, getpgrp, getppid," "tmpfile," and
     "tmpnam, tempnam."