mkdtemp - create a unique temporary directory


   #include <stdlib.h>

   char *mkdtemp(char *template);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       /* Since glibc 2.19: */ _DEFAULT_SOURCE
       || /* Glibc 2.19 and earlier: */ _BSD_SOURCE
       || /* Since glibc 2.10: */ _POSIX_C_SOURCE >= 200809L


   The  mkdtemp()  function generates a uniquely named temporary directory
   from template.  The last six characters of template must be XXXXXX  and
   these  are replaced with a string that makes the directory name unique.
   The directory is then created with permissions 0700.  Since it will  be
   modified,  template  must  not  be  a  string  constant,  but should be
   declared as a character array.


   The mkdtemp() function returns  a  pointer  to  the  modified  template
   string  on  success,  and  NULL  on failure, in which case errno is set


   EINVAL The last six  characters  of  template  were  not  XXXXXX.   Now
          template is unchanged.

   Also see mkdir(2) for other possible values for errno.


   Available since glibc 2.1.91.


   For   an   explanation   of   the  terms  used  in  this  section,  see

   Interface  Attribute      Value   
   mkdtemp()  Thread safety  MT-Safe 


   POSIX.1-2008.  This function is present on the BSDs.


   mktemp(1), mkdir(2),  mkstemp(3),  mktemp(3),  tempnam(3),  tmpfile(3),


   This  page  is  part of release 4.09 of the Linux man-pages project.  A
   description of the project, information about reporting bugs,  and  the
   latest     version     of     this    page,    can    be    found    at


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