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 call‐
     ing acl_free(3) with the (void*)acl_t returned by acl_from_text() as an

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 appropri‐

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

     [EINVAL]           The argument buf_p cannot be translated into an ACL.

     [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 2017-04-25.  If you discover
     any rendering problems in this HTML version of the page, or you believe
     there is a better or more up-to-date source for the page, or you have
     corrections or improvements to the information in this COLOPHON (which
     is not part of the original manual page), send a mail to

Linux ACL                      March 23, 2002                      Linux ACL

Pages that refer to this page: chacl(1)