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acl_to_text ()
  • >> acl_to_text (3) ( FreeBSD man: Библиотечные вызовы )
  • acl_to_text (3) ( Linux man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    acl_to_text
    
     - convert an ACL to text
    
     
    

    LIBRARY

    Lb libc
    
     
    

    SYNOPSIS

       #include <sys/types.h>
       #include <sys/acl.h>
    char * acl_to_text (acl_t acl ssize_t *len_p);
     

    DESCRIPTION

    The acl_to_text ();
    function translates the ACL pointed to by argument acl into a NULL terminated character string. If the pointer len_p is not NULL, then the function shall return the length of the string (not including the NULL terminator) in the location pointed to by len_p The format of the text string returned by acl_to_text ();
    shall be the POSIX.1e long ACL form.

    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_free3 with the (void*)char as an argument.  

    IMPLEMENTATION NOTES

    Fx Ns 's support for POSIX.1e interfaces and features is still under development at this time.  

    RETURN VALUES

    Upon successful completion, the function shall return a pointer to the long text form of an ACL. Otherwise, a value of (char*)NULL shall be returned and errno shall be set to indicate the error.  

    ERRORS

    If any of the following conditions occur, the acl_to_text ();
    function shall return a value of (acl_t)NULL and set errno to the corresponding value:

    Bq Er EINVAL
    Argument acl does not point to a valid ACL.

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

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

     

    SEE ALSO

    acl(3), acl_free3, acl_from_text3, posix1e(3)  

    STANDARDS

    POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion of the draft continues on the cross-platform POSIX.1e implementation mailing list. To join this list, see the Fx POSIX.1e implementation page for more information.  

    HISTORY

    POSIX.1e support was introduced in Fx 4.0 , and development continues.  

    AUTHORS

    An Robert N M Watson  

    BUGS

    The acl_from_text ();
    and acl_to_text ();
    functions rely on the getpwent(3) library calls to manage username and uid mapping, as well as the getgrent(3) library calls to manage groupname and gid mapping. These calls are not thread safe, and so transitively, neither are acl_from_text ();
    and acl_to_text (.);
    These functions may also interfere with stateful calls associated with the getpwent ();
    and getgrent ();
    calls.


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    IMPLEMENTATION NOTES
    RETURN VALUES
    ERRORS
    SEE ALSO
    STANDARDS
    HISTORY
    AUTHORS
    BUGS


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