acl_to_any_text(3) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON

ACL_TO_ANY_TEXT(3)       Library Functions Manual     ACL_TO_ANY_TEXT(3)

NAME         top

       acl_to_any_text — convert an ACL to text

LIBRARY         top

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

SYNOPSIS         top

       <sys/types.h> <acl/libacl.h> char * acl_to_any_text(acl_t acl,
       const char *prefix, char separator, int options)

DESCRIPTION         top

       The acl_to_any_text() function translates the ACL pointed to by
       the argument acl into a NULL terminated character string. This
       character string is composed of the ACL entries contained in acl,
       in the entry text format described on acl(5).  Entries are
       separated from each other by the separator character. If the
       argument prefix is not (const char *)NULL, each entry is prefixed
       by this character string.

       If the argument options is 0, ACL entries are converted using the
       entry tag type keywords user, group, mask, and other.  User IDs
       and group IDs of ACL entries that contain such qualifiers are
       converted to their corresponding names; if an identifier has no
       corresponding name, a decimal number string is produced. The ACL
       text representation contains no additional comments.  A bitwise
       combinations of the following options can be used to modify the
       result:

       TEXT_ABBREVIATE
               Instead of the full tag type keywords, single letter
               abbreviations are used.  The abbreviation for user is u,
               the abbreviation for group is g, the abbreviation for
               mask is m, and the abbreviation for other is o.

       TEXT_NUMERIC_IDS
               User IDs and group IDs are included as decimal numbers
               instead of names.

       TEXT_SOME_EFFECTIVE
               A comment containing the effective permissions of the ACL
               entry is included after ACL entries that contain
               permissions which are ineffective because they are masked
               by an ACL_MASK entry. The ACL entry and the comment are
               separated by a tab character.

       TEXT_ALL_EFFECTIVE
               A comment containing the effective permissions of the ACL
               entry is included after all ACL entries that are affected
               by an ACL_MASK entry.  The comment is included even if
               the permissions contained in the ACL entry equal the
               effective permissions. The ACL entry and the comment are
               separated by a tab character.

       TEXT_SMART_INDENT
               This option is used in combination with the
               TEXT_SOME_EFFECTIVE or TEXT_ALL_EFFECTIVE option. The
               number of tab characters inserted between the ACL entry
               and the comment is increased so that the comment is
               aligned to the fourth tab stop position.  A tab width of
               8 characters is assumed.

       The ACL referred to by acl is not changed.

       This function allocates any memory necessary to contain the
       string and returns a pointer to the string.  The caller should
       free any releasable memory, when the new string is no longer
       required, by calling acl_free() with the (void*)char returned by
       acl_to_any_text() as an argument.

RETURN VALUE         top

       On success, this function returns a pointer to the text
       representation of the ACL.  On error, a value of (char *)NULL is
       returned, and errno is set appropriately.

ERRORS         top

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

       [EINVAL]           The argument acl is not a valid pointer to an
                          ACL.

                          The ACL referenced by acl contains one or more
                          improperly formed ACL entries, or for some
                          other reason cannot be translated into the
                          text form of an ACL.

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

STANDARDS         top

       This is a non-portable, Linux specific extension to the ACL
       manipulation functions defined in IEEE Std 1003.1e draft 17
       (“POSIX.1e”, abandoned).

SEE ALSO         top

       acl_from_text(3), acl_to_text(3), acl_free(3), acl(5)

AUTHOR         top

       Written by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>.

COLOPHON         top

       This page is part of the acl (manipulating access control lists)
       project.  Information about the project can be found at
       http://savannah.nongnu.org/projects/acl.  If you have a bug
       report for this manual page, see
       ⟨http://savannah.nongnu.org/bugs/?group=acl⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨git://git.savannah.nongnu.org/acl.git⟩ on 2023-12-22.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2023-12-01.)  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
       man-pages@man7.org

Linux ACL                    March 25, 2002           ACL_TO_ANY_TEXT(3)