Dumping the CGI environment

That script fails to properly escape environment variables that contain HTML-sensitive characters, a common mistake of course. I'd stick with something this simple:

#!/bin/sh
echo content-type: text/plain
echo
printenv
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Yeah, and if you're not on a system with a shell or printenv, you can do it in Perl if you insist:

#!/usr/bin/perl
print "Content-type: text/plain\n\n";
print "$_\t$ENV{$_}\n" for sort keys %ENV;
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See how much simpler that is? And no problems if there's HTML involved.

Sometimes, HTML is overkill.

-- Randal L. Schwartz, Perl hacker

Comment on Dumping the CGI environment Select or Download Code

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Re: Dumping the CGI environment by tachyon (Chancellor) on Sep 24, 2001 at 06:38 UTC
You are of course correct that I should have escaped the env variables for HTML display so I have added a sub and a credit. You will of course have to view source to get useful output from your example as it will be solidly uninteligible in a browser window where it will appear as one long string. It is short and sweet though :-) cheers tachyon s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print	[reply]
Re: Re: Dumping the CGI environment by merlyn (Sage) on Sep 24, 2001 at 12:38 UTC
No, it's being shown as "text/plain", and I'm spitting out newlines, so it'll appear on separate lines. Try it! -- Randal L. Schwartz, Perl hacker	[reply]
Re: Re: Re: Dumping the CGI environment by tachyon (Chancellor) on Sep 24, 2001 at 13:23 UTC
Oh the humilitation. Fell for the old you see what you expect when reading code problem. I misread it as "text/html". Back to the grindstone of humble mediocrity. cheers tachyon s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print	[reply]