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ACL_CREATE_ENTRY

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

BSD mandoc
Linux ACL  

NAME

acl_create_entry - create a new ACL entry  

LIBRARY

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

SYNOPSIS

In sys/types.h In sys/acl.h Ft int Fn acl_create_entry acl_t *acl_p acl_entry_t *entry_p  

DESCRIPTION

The Fn acl_create_entry function creates a new ACL entry in the ACL pointed to by the contents of the pointer argument acl_p On success, the function returns a descriptor for the new ACL entry via entry_p

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 (void*)*acl_p as an argument. If the ACL working storage cannot be increased in the current location, then the working storage for the ACL pointed to by acl_p may be relocated and the previous working storage is released. A pointer to the new working storage is returned via acl_p

The components of the new ACL entry are initialized in the following ways: the ACL tag type component contains ACL_UNDEFINED_TAG, the qualifier component contains ACL_UNDEFINED_ID, and the set of permissions has no permissions enabled. Any existing ACL entry descriptors that refer to entries in the ACL continue to refer to those entries.  

RETURN VALUE

Rv -std acl_create_entry  

ERRORS

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

Bq Er EINVAL
The argument acl_p is not a valid pointer to an ACL.
Bq Er ENOMEM
The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.

 

STANDARDS

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

SEE ALSO

acl_init3, acl_delete_entry3, acl_free3, acl_create_entry3, 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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