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acl_to_any_text (3)
  • >> acl_to_any_text (3) ( Linux man: Библиотечные вызовы )

  • BSD mandoc
    Linux ACL  

    NAME

    acl_to_any_text
    
     - convert an ACL to text
    
     
    

    LIBRARY

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

    SYNOPSIS

       #include <sys/types.h>
       #include <acl/libacl.h>
    char * Fo acl_to_any_text Fa acl_t acl Fa const char *prefix Fa char separator Fa int options Fc  

    DESCRIPTION

    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

    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

    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:

    Bq Er 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.

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

     

    STANDARDS

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

    SEE ALSO

    acl_from_text3, acl_to_text3, acl_free3, acl(5)  

    AUTHOR

    Written by An Andreas Gruenbacher Aq [email protected] .


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    STANDARDS
    SEE ALSO
    AUTHOR


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