Exercises for echoer

The initial exercise:

• Copy eform.html and echoer.c to your directory.

• Rename echoer.c to be echoer-$sno$.c.

• Compile echoer-$sno$.c, and copy it to the student CGI directory.

• Modify your eform.html to refer to echoer-$sno$.

• Try executing echoer-$sno$ via eform.html.

Some further exercises:

• Change the form elements (e.g. add radio boxes) to your eform.html, and see what is returned. Look at the fancy form example for ideas.

• echoer.c includes an input_entries() function. What does it do?

• Make sure you have a general understanding of the form manipulation functions, since they are used a lot in CGI scripts.

• The fancy form example does not return all the name=value pairs. Why?

Back to the Main Echoer page