mkdtemp - create a unique temporary directory
#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
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 appropriately.
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 attributes(7).
Interface | Attribute | Value |
mkdtemp() | Thread safety | MT-Safe |
POSIX.1-2008. This function is present on the BSDs.
This page is part of release 5.10 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/.