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ACL_CMP

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

BSD mandoc
Linux ACL  

NAME

acl_cmp - compare two ACLs  

LIBRARY

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

SYNOPSIS

In sys/types.h In acl/libacl.h Ft int Fn acl_cmp acl_t acl1 acl_t acl2  

DESCRIPTION

The Fn acl_cmp function compares the ACLs pointed to by the arguments acl1 and acl2 for equality. The two ACLs are considered equal if for each entry in acl1 there is an entry in acl2 with matching tag type, qualifier, and permissions, and vice versa.  

RETURN VALUE

If successful, the Fn acl_cmp function returns 0 if the two ACLs acl1 and acl2 are equal, and 1 if they differ. Otherwise, the value -1 is returned and the global variable errno is set to indicate the error.  

ERRORS

If any of the following conditions occur, the Fn acl_cmp function returns -1 and sets errno to the corresponding value:

Bq Er EINVAL
The argument acl1 is not a valid pointer to an ACL.

The argument acl2 is not a valid pointer to an ACL.

 

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(5)  

AUTHOR

Written 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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