MKTEMP(3)                                                            MKTEMP(3)



NAME
       mktemp - make a unique file name

SYNOPSIS
       char *mktemp(template)
       char *template;

       mkstemp(template)
       char *template;

DESCRIPTION
       _M_k_t_e_m_p creates a unique file name, typically in a temporary filesystem,
       by replacing _t_e_m_p_l_a_t_e with a unique file name, and returns the  address
       of  the  template.   The  template  should contain a file name with six
       trailing X’s, which are replaced with the  current  process  id  and  a
       unique  letter.  _M_k_s_t_e_m_p makes the same replacement to the template but
       returns a file descriptor for the template file open  for  reading  and
       writing.   _M_k_s_t_e_m_p  avoids  the  race  between testing whether the file
       exists and opening it for use.

SEE ALSO
       getpid(2), open(2)

DIAGNOSTICS
       _M_k_s_t_e_m_p returns an open file descriptor upon success.  It returns -1 if
       no suitable file could be created.



7th Edition                      May 14, 1986                        MKTEMP(3)