mkdtemp(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

MKDTEMP(3)              Linux Programmer's Manual             MKDTEMP(3)

NAME         top

       mkdtemp - create a unique temporary directory

SYNOPSIS         top

       #include <stdlib.h>

       char *mkdtemp(char *template);

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

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

DESCRIPTION         top

       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.

RETURN VALUE         top

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

ERRORS         top

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

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

VERSIONS         top

       Available since glibc 2.1.91.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             Attribute     Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │mkdtemp()                             │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

CONFORMING TO         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 5.11 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
       https://www.kernel.org/doc/man-pages/.

GNU                            2021-03-22                     MKDTEMP(3)

Pages that refer to this page: mktemp(1)mkstemp(3)mktemp(3)file-hierarchy(7)