H06.05 Release Version Update Compendium

Operating System

H06.05 Release Version Update Compendium—541761-001

2-2

OSS Security APIs

•

The OSS environment now supports the C setregid() and setreuid()

functions to make the porting of UNIX or Linux applications easier. Changes to the

effective user ID or the effective group ID cause appropriate behavior across

processors within a server and among servers. Safeguard auditing also tracks the

changes.

•

Functions are added to the OSS file system (T8620) to change the owner or

access permissions for a file when the named file is a symbolic link:

lchmod(2)

lchown(2)

Some functions are changed and new functions are added to the OSS file system

(T8620) to change the owner or access permissions for a file specified by a file

descriptor:

fchmod(2)

fchown(2)

Changes to the effective user ID or the effective group ID cause appropriate

behavior across processors within a server and among servers. Safeguard auditing

also tracks the changes. For detailed information, see the OSS System Calls

Reference Manual.

POSIX Threads

Some functions are changed and new functions are added to POSIX Threads product

(T1248) to support several new features:

•

Reentrant POSIX thread APIs

•

Nonblocking file-descriptor POSIX thread APIs

•

Enscribe POSIX thread APIs

For detailed information, see the OSS System Calls Reference Manual.

Fallback

If you fall back, you cannot use the new functions and must recode applications to

remove them.