OS-USERID¶

Starting in FWD branch 3821c revision 11837, FWD provides a new "built-in function" OS-USERID. This revision is not yet available in FWD trunk. The original task for developing this feature was #5009. It has useful information about the implementation.

• OS-USERID
  • Introduction
  • Syntax
  • Behavior
  • Example
  • Implementation

Introduction¶

OS-USERID acts like a global variable that is always available. It reports the current user's operating system userid/user name. It obtains this using native OS code and returns the result as a character type.

This feature is not yet available in the FWD trunk branch.

Syntax¶

OS-USERID

Behavior¶

This will return the userid/user name as a character value. The value will be as reported by the operating system for the specific session's FWD client JVM process. If the OS userid/user name cannot be determined, then the "" (empty string) is returned.

Example¶

message "OS-USERID = '" + os-userid + "'; USERID = '" + USERID + "'".

If the current user's name is "greg" and there is no _user database login active, then this will result in the following message text:

OS-USERID = 'greg'; USERID = ''

Implementation¶

The Java implementation exists in SecurityOps.getOSUserId(). It reads the value from a set of client-side parameters that are queried when the FWD client starts. This client-side code uses native operating system API calls to obtain this value:

OS	API
Windows	GetUserNameA
Linux	geteuid() and getpwuid()

Please see #5009 for more implementation details.

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