acl_cmp (3) - Linux Manuals
acl_cmp: compare two ACLs
acl_cmp - compare two ACLs
LIBRARYLinux Access Control Lists library (libacl, -lacl).
SYNOPSISIn sys/types.h In acl/libacl.h Ft int Fn acl_cmp acl_t acl1 acl_t acl2
DESCRIPTIONThe 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 VALUEIf 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.
ERRORSIf any of the following conditions occur, the Fn acl_cmp function returns -1 and sets errno to the corresponding value:
- Bq Er EINVAL
is not a valid pointer to an ACL.
The argument acl2 is not a valid pointer to an ACL.
STANDARDSThis is a non-portable, Linux specific extension to the ACL manipulation functions defined in IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned).
AUTHORWritten by An Andreas Gruenbacher Aq a.gruenbacher [at] bestbits.at .