Sets the access control information of a file.
Security Library (libc.a)
int acl_put (Path, Access, Free) char *Path; char *Access; int Free;
int acl_fput (FileDescriptor, Access, Free) int FileDescriptor; char *Access; int Free;
The acl_put and acl_fput subroutines set the access control information of a file system object. This information is contained in a buffer returned by a call to the acl_get or acl_fget subroutine. The structure of the data in this buffer is unspecified. However, the entire Access Control List (ACL) for a file cannot exceed one memory page (4096 bytes) in size.
|Path||Specifies the path name of a file.|
|FileDescriptor||Specifies the file descriptor of an open file.|
|Access||Specifies a pointer to the buffer containing the access control information.|
|Free||Specifies whether the buffer space is to be deallocated. The following values are valid:|
On successful completion, the acl_put and acl_fput subroutines return a value of 0. Otherwise, -1 is returned and the errno global variable is set to indicate the error.
The acl_put subroutine fails and the access control information for a file remains unchanged if one or more of the following are true:
|EACCES||Search permission is denied on a component of the Path prefix.|
|EFAULT||The Path parameter points to a location outside of the allocated address space of the process.|
|ELOOP||Too many symbolic links were encountered in translating the Path parameter.|
|ENAMETOOLONG||A component of the Path parameter exceeded 255 characters, or the entire Path parameter exceeded 1023 characters.|
|ENOENT||A component of the Path does not exist or has the disallow truncation attribute (see the ulimit subroutine).|
|ENOENT||The Path parameter was null.|
|ENOENT||A symbolic link was named, but the file to which it refers does not exist.|
|ENOTDIR||A component of the Path prefix is not a directory.|
|ESTALE||The process' root or current directory is located in a virtual file system that has been unmounted.|
The acl_fput subroutine fails and the file permissions remain unchanged if the following is true:
|EBADF||The FileDescriptor parameter is not a valid file descriptor.|
The acl_put or acl_fput subroutine fails and the access control information for a file remains unchanged if one or more of the following are true:
|EINVAL||The Access parameter does not point to a valid access control buffer.|
|EINVAL||The Free parameter is not 0 or 1.|
|EIO||An I/O error occurred during the operation.|
|EROFS||The named file resides on a read-only file system.|
If Network File System (NFS) is installed on your system, the acl_put and acl_fput subroutines can also fail if the following is true:
|ETIMEDOUT||The connection timed out.|
Access Control: The invoker must have search permission for all components of the Path prefix.
These subroutines are part of Base Operating System (BOS) Runtime.
The acl_chg subroutine, acl_get subroutine, acl_set subroutine, chacl subroutine, chmod subroutine, stat subroutine, statacl subroutine.
The aclget command, aclput command, chmod command.
List of Security and Auditing Subroutines and Subroutines Overview in AIX Version 4.3 General Programming Concepts: Writing and Debugging Programs.