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

  • BSD mandoc
    Linux ACL  

    NAME

    acl_get_fd
    
     - get an ACL by file descriptor
    
     
    

    LIBRARY

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

    SYNOPSIS

       #include <sys/types.h>
       #include <sys/acl.h>
    acl_t acl_get_fd (int fd);
     

    DESCRIPTION

    The acl_get_fd ();
    function retrieves the access ACL associated with the file referred to by fd The ACL is placed into working storage and acl_get_fd ();
    returns a pointer to that storage.

    In order to read an ACL from an object, a process must have read access to the object's attributes.

    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_free3 with the (void*)acl_t returned by acl_get_fd ();
    as an argument.  

    RETURN VALUE

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

    ERRORS

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

    Bq Er EBADF
    The fd argument is not a valid file descriptor.
    Bq Er ENOMEM
    The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
    Bq Er ENOTSUP
    The file system on which the file identified by fd is located does not support ACLs, or ACLs are disabled.

     

    STANDARDS

    IEEE Std 1003.1e draft 17 (lqPOSIX.1erq, abandoned)  

    SEE ALSO

    acl_free3, acl_get_entry3, acl_get_file3, acl_set_fd3, acl(5)  

    AUTHOR

    Derived from the FreeBSD manual pages written by An Robert N M Watson Aq rwatson@FreeBSD.org , and adapted for Linux by An Andreas Gruenbacher Aq a.gruenbacher@bestbits.at .


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    STANDARDS
    SEE ALSO
    AUTHOR


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