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

NAME
mkdtemp - create a unique temporary directory

SYNOPSIS
#include <stdlib.h>

char *mkdtemp(char *template);

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

mkdtemp():
_BSD_SOURCE
|| /* Since glibc 2.10: */
(_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700)

DESCRIPTION
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, tem-
plate must not be a string constant, but should be declared as a character array.

tmpnam + mkdir, например

SEE ALSO
mkdir(2), mkstemp(3), mktemp(3), tempnam(3), tmpfile(3), tmpnam(3)

То что нужно, спасибо.

уже