mkdtemp - Online Linux Manual PageSection : 3
Updated : 2023-02-05
Source : Linux man-pages 6.03

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NAMEmkdtemp − create a unique temporary directory

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LIBRARYStandard C library (libc, −lc)

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SYNOPSIS#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

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DESCRIPTIONThe 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.

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RETURN VALUEThe 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.

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ERRORSEINVAL  The last six characters of template were not XXXXXX. Now template is unchanged. Also see mkdir(2) for other possible values for errno.

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VERSIONSAvailable since glibc 2.1.91.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue mkdtemp() Thread safetyMT-Safe

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

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SEE ALSOmktemp(1), mkdir(2), mkstemp(3), mktemp(3), tempnam(3), tmpfile(3), tmpnam(3) 0

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