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.
- 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
attributes(7).
| 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),
tmpnam(3)