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ACL_SIZE

Section: C Library Functions (3)
Index Return to Main Contents

BSD mandoc
Linux ACL  

NAME

acl_size - get the size of the external representation of an ACL  

LIBRARY

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

SYNOPSIS

In sys/types.h In sys/acl.h Ft ssize_t Fn acl_size acl_t acl  

DESCRIPTION

The Fn acl_size function return the size, in bytes, of the buffer required to hold the exportable, contiguous, persistent form of the ACL pointed to by the argument acl when converted by Fn acl_copy_ext .

Any existing ACL entry descriptors that refer to entries in acl continue to refer to the same entries. Any existing ACL pointers that refer to the ACL referred to by acl continue to refer to the ACL. The order of ACL entries within acl remains unchanged.  

RETURN VALUE

On success, the Fn acl_size function returns the size in bytes of the contiguous, persistent form of the ACL. On error, a value of (ssize_t)-1 is returned and errno is set appropriately.  

ERRORS

If any of the following conditions occur, the Fn acl_size function returns a value of (ssize_t)-1 and sets errno to the corresponding value:

Bq Er EINVAL
The argument acl is not a valid pointer to an ACL.

 

STANDARDS

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

SEE ALSO

acl_copy_ext3, 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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