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ACL_SET_QUALIFIER

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

BSD mandoc
Linux ACL  

NAME

acl_set_qualifier - set the qualifier of an ACL entry  

LIBRARY

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

SYNOPSIS

In sys/types.h In sys/acl.h Ft int Fn acl_set_qualifier acl_entry_t entry_d const void *qualifier_p  

DESCRIPTION

The Fn acl_set_qualifier function sets the qualifier of the ACL entry indicated by the argument entry_d to the value referred to by the argument qualifier_p If the value of the tag type in the ACL entry referred to by entry_d is ACL_USER, then the value referred to by qualifier_p shall be of type uid_t If the value of the tag type in the ACL entry referred to by entry_d is ACL_GROUP, then the value referred to by qualifier_p shall be of type gid_t If the value of the tag type in the ACL entry referred to by entry_d is a tag type for which a qualifier is not supported, Fn acl_set_qualifier returns an error.

Any ACL entry descriptors that refer to the entry referred to by entry_d continue to refer to that entry. This function may cause memory to be allocated. The caller should free any releasable memory, when the ACL is no longer required, by calling Fn acl_free with a pointer to the ACL as argument.  

RETURN VALUE

Rv -std acl_set_qualifier  

ERRORS

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

Bq Er EINVAL
The argument entry_d is not a valid descriptor for an ACL entry.

The value of the tag type in the ACL entry referenced by the argument entry_d is neither ACL_USER nor ACL_GROUP.

The value pointed to by the argument qualifier_p is not valid.

Bq Er ENOMEM
The Fn acl_set_qualifier function is unable to allocate the memory required for the ACL qualifier.

 

STANDARDS

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

SEE ALSO

acl_create_entry3, acl_free3, acl_get_permset3, acl_get_qualifier3, acl_get_tag_type3, acl_set_entry3, acl_set_permset3, acl_set_tag_type3, 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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