Method and apparatus for obtaining network information by using a dynamic link library

• US 5,838,911 A
• Filed: 05/23/1996
• Issued: 11/17/1998
• Est. Priority Date: 05/23/1996
• Status: Expired due to Fees

• Current Assignee: Electronic Data Systems Corporation (Perspecta, Inc.)
• Original Assignee: Electronic Data Systems Corporation (Perspecta, Inc.)
• Inventors: Rosenhauer, Alan, Jensen, Joel R., Pruett, Paul S.
• Primary Examiner(s): Coleman, Eric
• Assistant Examiner(s): Monestime, Mackly
• Application Number:
  US08/652,870
• Time in Patent Office: 908 Days
• Field of Search: 395/200.33, 395/200.55, 395/200.56, 395/200.59, 395/670, 395/680, 395/685
• US Class Current: 709/203
• CPC Class Codes: G06F 11/3495 for systems
• CPC Class Codes: G06F 9/44521 Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading

Abstract

A method and system are disclosed for obtaining network information in a computer network. The invention allows application programs to obtain computer network information using programming language independent dynamic link library functions. The method of the invention comprises generating a call to a dynamic link library function from an application program running on a client computer in a computer network. The call requests some information about the computer network and that information is resident on a server computer. A dynamic link library function interprets the call and generates a network application program interface call. After receiving network information in response to the network application program interface call, the dynamic link library function processes the network information and returns the processed information to the application program.

Claims

1. A computer network information communication system, comprising:

a client computer running an application program, the application program operable to generate a first call requesting information about the computer network, that information resident on a server computer;

a first dynamic link library function operable to receive and interpret the first call and to generate, from the first call, a second call;

a second dynamic link library function operable to receive the second call, and generate from the second call at least one network application program interface call identifying the requested network information, the second dynamic link library function further operable to receive the requested network information from the server computer in response to the network application program interface call, process the requested network information, and return the processed network information to the first dynamic link library function;

the first dynamic link library function further operable to return the processed network information to the application program; and

wherein the first and second dynamic link library functions reside on the same computer.

2. The computer network information communication system of claim 1, wherein the computer network is operating under a version of the Microsoft Windows™

operating system.

3. The computer network information communication system of claim 1, wherein the requested network information is selected from a group consisting of a list of all user groups of which a particular user is a member, the list of all currently logged on users, the number of currently logged on users, the identification of a particular user, a list of all user groups, user account information, a list of shared directories, information about a network drive connection, a list of all file servers, and information about a server.

4. The computer network information communication system of claim 1, wherein the dynamic link library function resides in the memory of the client computer.

12. The system of claim 1 wherein the application program is a 32-bit application, the first dynamic link library function is a 32-bit function, and the second dynamic link library function is a 16-bit function.

13. The computer network information communication system of claim 12 wherein the first dynamic link library is further operable to translate a 32-bit parameter into a 16-bit parameter prior to generating the second call.

14. The system of claim 13 wherein the first dynamic link library function is further operable to translate the processed, requested network information into 32-bit values prior to returning the processed, requested network from the first dynamic link library function to the application program.

5. A method for obtaining network information in a computer network, comprising:

generating a first call to a first dynamic link library function from an application program running on a client computer, wherein the first call requests information about the computer network, that information resident on a server computer;

interpreting the first call using the first dynamic link library function;

generating, from the first call, a second call to a second dynamic link library function, wherein the first and second dynamic link library functions reside on the same computer;

generating, from the second call, at least one network application program interface call identifying the requested network information;

receiving the requested network information in response to the network application program interface call;

processing the requested network information using the second dynamic link library function;

returning the processed, requested network information to the first dynamic link library function; and

returning the processed, requested network information from the first dynamic link library function to the application program.

6. The method of claim 5 wherein the application program is a 32-bit application, the first dynamic link library function is a 32-bit function, and the second dynamic link library function is a 16-bit function.

7. The method of claim 6, further comprising:

translating a 32-bit parameter into a 16-bit parameter prior to generating the second call.

8. The method of claim 7, further comprising:

translating the processed, requested network information into 32-bit values prior to returning the processed, requested network information from the first dynamic link library function to the application program.

9. The method of claim 5, wherein the computer network is operating under a version of the Microsoft Windows™

operating system.

10. The method of claim 5, wherein the requested network information is selected from a group consisting of a list of all user groups of which a particular user is a member, the list of all currently logged on users, the number of currently logged on users, the identification of a particular user, the password of a particular user, a list of all file servers, and the location of a print server.

11. The method of claim 5, wherein the first dynamic link library function and second dynamic link library function reside in the memory of the client computer.