acl_from_text(3) — Linux manual page


ACL_FROM_TEXT(3)      BSD Library Functions Manual      ACL_FROM_TEXT(3)

NAME         top

     acl_from_text — create an ACL from text

LIBRARY         top

     Linux Access Control Lists library (libacl, -lacl).

SYNOPSIS         top

     #include <sys/types.h>
     #include <sys/acl.h>

     acl_from_text(const char *buf_p);

DESCRIPTION         top

     The acl_from_text() function converts the text form of the ACL
     referred to by buf_p into the internal form of an ACL and returns a
     pointer to the working storage that contains the ACL. The
     acl_from_text() function accepts as input the long text form and
     short text form of an ACL as described in acl(5).

     This function may cause memory to be allocated.  The caller should
     free any releasable memory, when the new ACL is no longer required,
     by calling acl_free(3) with the (void*)acl_t returned by
     acl_from_text() as an argument.

RETURN VALUE         top

     On success, this function returns a pointer to the working storage.
     On error, a value of (acl_t)NULL is returned, and errno is set

ERRORS         top

     If any of the following conditions occur, the acl_from_text()
     function returns a value of (acl_t)NULL and sets errno to the
     corresponding value:

     [EINVAL]           The argument buf_p cannot be translated into an

     [ENOMEM]           The acl_t to be returned requires more memory
                        than is allowed by the hardware or system-
                        imposed memory management constraints.

STANDARDS         top

     IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)

SEE ALSO         top

     acl_free(3), acl_get_entry(3), acl(5)

AUTHOR         top

     Derived from the FreeBSD manual pages written by Robert N M Watson
     <>, and adapted for Linux by Andreas Gruenbacher

COLOPHON         top

     This page is part of the acl (manipulating access control lists)
     project.  Information about the project can be found at  If you have a bug report
     for this manual page, see
     ⟨⟩.  This page was
     obtained from the project's upstream Git repository
     ⟨git://⟩ on 2021-08-27.  (At that
     time, the date of the most recent commit that was found in the
     repository was 2021-03-16.)  If you discover any rendering problems
     in this HTML version of the page, or you believe there is a better
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     of the original manual page), send a mail to

Linux ACL                    March 23, 2002                    Linux ACL

Pages that refer to this page: chacl(1)