Persistent CGI Program Example

The following example shows a counter that is increased each time the Persistent CGI program is called.

/***********************************************************************/

/ This

is a sample Persistent CGI program

*/

/

This

program is invoked by a URL

*/

/

http://hostname/cgi-bin/samplePersistent.pgm?bin=1)

*/

/***********************************************************************/ #include <stdio.h>

#include <stdlib.h> #include <string.h>

#define BUFSIZE 1024

unsigned int MAXINPUT = BUFSIZE; /* Maximum input data.*/

int count=1;

int main()

{

char *pt;

char carac[2]=" "; int bin=1;

freopen("", "r", stdin); /* You need to re-open the stdin for the Persistent CGI Program

pt=getenv("QUERY_STRING"); carac[0]=pt[4]; bin=atoi(carac);

if(bin == 1)

{

printf("Accept-HTSession: webpg101101 \n");

printf("Content-type: text/html \n\n"); printf("<html><title>Test persistent CGI</title><body>"); printf("<h2> The first form</h2>");

printf("<form action=\"/cgi-bin/webpg101.pgm/webpg101101\" "); printf("method=\"GET\"> ");

printf("<input type=HIDDEN NAME=BIN VALUE=2>"); printf("<input type=reset value=Reset>"); printf("</form></body></html>");

count++;

}

if(bin == 2)

{

pt=getenv("QUERY_STRING"); printf("Accept-HTSession: webpg101101 \n"); printf("Content-type: text/html \n\n"); printf("<html><title> Test persistent CGI</title><body>"); printf("<h2> The second form</h2>");

printf(" Valor count: %i",count);

printf("Query string: %s",pt);

printf("<form action=\"/cgi-bin/webpg101.pgm/webpg101101\" "); printf("method=\"GET\"> ");

printf("<input type=HIDDEN NAME=BIN VALUE=3>"); printf("<h2>Persisten CGI si funcionan</h2>"); printf("<input type=submit value=Execute>"); printf("</form></body></html>");

count++;

}

if(bin == 3)

{

printf("Accept-HTSession: webpg101101 \n");

printf("Content-type: text/html \n\n"); printf("<html><title> Test persistent CGI</title><body>"); printf("<h2> The third form</h2>");

Chapter 4. Using Persistent CGI Programs 83

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IBM AS/400E manual Persistent CGI Program Example
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AS/400E specifications

The IBM AS/400E, now more commonly known as IBM i, is a robust and versatile midrange server that has been designed to provide a comprehensive computing solution for businesses of all sizes. First introduced in the late 1980s, the AS/400 series has undergone multiple enhancements and rebranding, with the AS/400E being one of the notable iterations. This powerful platform is closely associated with IBM's commitment to reliability, scalability, and integrated business solutions.

One of the main features of the AS/400E is its highly integrated architecture that combines hardware and software into a cohesive system. This integration allows for seamless operations, reducing the complexity typically associated with managing disparate systems. The system is powered by IBM's proprietary OS/400 operating system, which has evolved into IBM i, featuring advanced capabilities like object-oriented programming, integrated database management, and security features that are essential for enterprise environments.

A key characteristic of the AS/400E is its robust database support, primarily through the use of DB2 for i. This integrated database management system enables efficient data handling and retrieval, facilitating real-time business analytics and reporting. Furthermore, the platform supports a variety of programming languages, including RPG, COBOL, and Java, making it flexible for developers who require diverse tools for application development.

The AS/400E is also known for its exceptional reliability and uptime, making it a preferred choice for critical business applications in industries such as finance, healthcare, and manufacturing. This reliability is backed by advanced error detection and correction mechanisms, as well as redundancy features that help prevent data loss and minimize downtime.

In terms of scalability, the AS/400E can effortlessly expand to accommodate growing business demands. Organizations can increase processing power by adding more resources without significant disruption. This scalability, combined with the system’s built-in virtualization capabilities, allows businesses to optimize resource usage and streamline operations.

Security is another defining feature of the AS/400E. The platform incorporates various layers of security measures, including user authentication, encryption, and comprehensive auditing capabilities, ensuring that sensitive business data is protected against unauthorized access.

Overall, the IBM AS/400E remains a powerful tool in the enterprise computing landscape, providing businesses with an integrated, reliable, and secure solution for their technological needs. Its enduring popularity is a testament to its capability to evolve with changing business requirements while maintaining its core attributes of high performance and stability.
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