JPH11175439A - Port number allocating method at time of application program installation and storage medium used for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a malfunction from occurring without damaging user's convenience by automating a port number setting operation at the time of installing an application. SOLUTION: This method sets the retrieval position of an input port number information (D) table 40 to a leading part, compares a port number that is shown at the retrieval position and its range information with entire data of a registration port number information (C) table 41 and verifies that the port number is not overlapped with the range included. When an overlapping port number exists and also rewriting is performed and when overlapping does not exist, information (registration object data) of the table 40 is additionally stored in the table 41 and a registration flag (cf) is set. When the entire retrieval of the table 40 is finished in this way, data in which the flag (cf) of the table 41 is effective is stored in a communication information definition file 20 of a host computer 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to TCP, UDP /
IP (Transmission Control Protocol, User Datagram)
The present invention relates to a method of setting a port number for socket communication in computer-to-computer communication using a network protocol of Protocol / Internet Protocol.

[0002]

2. Description of the Related Art In recent years, with the spread of network systems, a number of CSS (Cliant Server System) application programs have been developed. And
When installing such CSS-based application programs, it is necessary to confirm by some means that the socket communication port number specified at the time of installation of each application program is not defined in the communication definition information of the installation target computer. After the confirmation, there are a case where the installer itself performs a registration operation of the port number, and a case where the same port number is already defined and the port number is automatically registered unconditionally depending on the application program.

As a prior art relating to a method of defining a port number, for example, a technique disclosed in Japanese Patent Application Laid-Open No. 7-311724 is cited.

[0004]

The conventional port number registration method described above is not uniform, and the reliability of the manual port number duplication confirmation method is extremely low.
It may cause malfunction due to duplicate definition. In addition, unconditional registration has a high possibility of causing a failure such as inoperability of a conventional function.

[0005] An object of the present invention is to search for definition information of a computer to be installed by using a computer-based automatic port number registration method, confirm the already defined port number, and duplicate the port number with the port number intended for definition. A check is performed to prevent duplication of port numbers and automate port number registration.

[0006]

In order to achieve the above object, according to the present invention, when installing an application program supporting a TCP, UDP / IP network protocol, first, the communication definition information of a computer to be installed is searched. Then, the defined port numbers are obtained, sorted in ascending order, and stored in the temporary management table. Then, the port number information stored in the management table is compared with the port number used by the application program to be installed, and if the same number does not exist, a registration process to the communication definition information of the computer to be installed is performed.

[0007] On the other hand, in the case of duplication, the installer is notified of the fact and a selection request is made to rewrite, cancel registration, or change to another number. When the change to another number is selected, the port number is searched again. A similar process is performed for the registration of a plurality of port numbers, and a registered port number is determined after preventing duplicate definition. A confirmation request is again made to the installer for the determined port number, a confirmation response is obtained, and then registration processing of the installation target computer in the communication definition information is performed.

The defined port number information obtained at the start of processing is not stored in a specific file or the like.
This is because, in managing the communication management information of the computer to be installed, even if the purpose of use is different, the management information having the same content is unnecessarily increased to avoid confusion. However, it has a function of outputting to a recording medium (file, list, etc.) in accordance with the request of the installer and the user.

[0009] By the above-described method, port numbers are automatically registered in the computer while preventing duplication of port numbers.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a computer system according to an embodiment of the present invention, in which an automatic port number assignment program to which the present invention is applied is executed. In FIG. 1, reference numeral 10 denotes a host computer, 11 denotes an automatic port number assignment program in the host computer 10, 20 denotes a communication information definition file storing communication information of the host computer 10 (in an external or internal storage device of the host computer 10). , 21 is registered port number information (A) stored in the communication information definition file 20, and 30 is an installer who inputs port number information and the like, and information from the host computer 10 is displayed on a monitor. I / O device for output, 12
Is a work table (B) which is a temporary management table created by the host computer 10.

FIG. 2 shows items of a registered port number information (C) table 41 and an input port number information (D) table 40 for storing information input by the installer in the work table (B) 12. FIG.

For the registered port number information, information (registered port number information (A) 21) that has already been defined is obtained from the communication information definition file 20, and it is temporarily sorted in the order of port numbers. Registered port number information (C) table 4 in units of consecutive port numbers
1 is stored. At this time, the head port number (cp) and its range (ch) of the continuous unit, and the registered information (cpx) are stored as they are in the registered port number information (C) table 41, respectively. You. Further, the port information not registered as the registered port number information (A) 21 (that is, the empty port information) indicates the empty port number (cp) at the head of the continuous unit, its range (ch), and the empty port information. The vacant port information flag (cf) is stored in the registered port number information (C) table 41.

The input port number information is obtained from information input by the installer (information input in a format registered in the host computer 10) by using the parameter position and offset of the port number also input by the installer. The port number is extracted and sorted in the order of the port number in the same manner as the registered port number information (C). The port number (dp), its range (dh), and the registration information (dpx) input by the installer are the input port number. Information (D)
Each is stored in the table 40.

Next, the port number registration processing by the port number automatic assignment program 11 of the present system will be described with reference to the flowchart of FIG.

First, the port number format information (parameter position, offset position) from the input / output device 30
Is input (step 101). At this time, if the offset position is “0”, it is recognized as a free format,
The search is performed using the position information of the parameter.

Next, a service name, a port number, other comments, and the like are input in a format registered in the communication definition file 20 of the host computer 10 (step 10).
2). It is confirmed whether all the ports to be registered have been input, and steps 101 and 102 are repeated until the port is completed (step 103).

Next, the input communication definition information is sorted in ascending order of port numbers, the number and range are calculated for each continuous port number unit, and this is stored in the input port number information (D) table 40. (Step 104).

Next, the communication definition file 20 of the host computer 10 is compared with the input port number for verification.
From the port numbers based on the parameter format information, sort the port numbers in ascending order of the port numbers in the same way as the input port numbers, calculate the number and range for each continuous port number unit, and Not from the port number
The vacant ports are specified, and the vacant port number flags are stored in the registered port number information (C) table 41 for identification of the number, range and registered data (step 105).

Next, the search position of the input port number information (D) table 40 is set at the head (step 10).
6). Then, the input port number information (D) table 40
The port number and its range information indicated by the search position are compared with all the data in the registered port number information (C) table 41 (step 107). The comparison item verifies that there is no duplication of the port number including its range.

A duplicate port number exists (step 1).
08) (YES in step 08) and when rewriting is performed (YES in step 109) and when there is no overlap (in case of NO in step 108), it is determined that the condition for executing the registration process is satisfied and the input port The information (registration target data) of the number information (D) table 40 is additionally stored in the registration port number information (C) table 41, and a registration flag (cf) indicating that the data is registration target data is set (step 111). .

A duplicate port number exists (step 1).
08 (YES), without rewriting (step 10
9 (NO at step 9) and when changing to a free port number (YES at step 110), select a port number and range from the free port information and store them in the input port number information (D) table 40. Additional storage (Step 1
12). At this time, the selected free port information is deleted from the registered port number information (C) table 41. Only in the case of this process, the process returns to step 107 and is executed again from the process of comparison with the registered data.

When there is data to be registered in step 111 and when the registration processing is not performed in step 110 (NO in step 110), the search position of the input port number information (D) table 40 is counted. Up (step 113). Step 10 is repeated until the entire input port number information (D) table 40 is searched.
The processing from step 7 to step 113 is repeated (step 114).

When all the search of the input port number information (D) table 40 is completed, the data for which the registration flag (cf) of the registered port number information (C) table 41 is valid is transferred to the communication information definition file of the host computer 10. 2
0 is stored (step 115).

FIG. 4 is a diagram showing a specific example of a comparison process between registered port number information and input port number information and a registration process based on the comparison process. For example, in the example shown in FIG. 4, the port number (3) in the input port number information (D) table 40
Does not exist in the registered port number information (C) table 41, the port number (3) is registered between the registered port numbers (1) and (4).

[0025]

As described above, according to the present invention,
By automating the port number setting operation at the time of application installation, it is possible to prevent malfunctions due to setting errors such as duplicate registration of port numbers without impairing user's convenience, and to register port numbers for each application Standards can be unified, and the reliability of installation work can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an outline of a computer system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing contents of a registered port number information (C) table and an input port number information (D) table in FIG. 1;

FIG. 3 is a flowchart illustrating a procedure of an automatic port number assignment process according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a specific example of a comparison process between registered port number information and input port number information and a registration process based on the comparison process in one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 host computer 11 automatic port number assignment program 12 work table (B) 20 communication information definition file 21 registered port number information (A) 30 input / output device 40 input port number information (D) table 41 registered port number information (C) table

Claims (3)

[Claims] 1. It has a network function, and has TCP, UD
A port number allocation method for installing an application program that supports the network protocol on a computer capable of using a network protocol such as P / IP, the method comprising: input port number information for socket communication input by an installer; Compares the defined registered port information obtained from the communication information definition file of the computer to be installed with the port number information confirmed that there is no duplication of the port number in the communication information definition file of the computer. A method of assigning a port number when installing an application program, which is characterized by being registered. 2. The method according to claim 1, wherein, as a result of the comparison processing, if the same port number exists in the registered port information already defined, the fact is notified to an installer and rewritten. A method of assigning a port number at the time of installing an application program, wherein a request to cancel registration and change to another number is required. 3. A storage medium storing at least a program for executing the processing according to claim 1 or 2.