cgi web app gives "premature end of script headers" but it"s there
am 22.04.2008 21:07:01 von drhowarddrfine
To get back to basics from a thread I entered elsewhere, I just tried
to access a small C program that does nothing but create an empty web
page. I put it in cgi-bin and give that folder and the app 755
permissions. When I access mysite.com/cgi-bin/myapp, I get a 500
internal server error and the error log says: "Premature end of script
headers: /home/rbelics/public_html/cgi-bin/test".
However, run locally on the command line, the output is correct:
Content-type: text/html; charset=utf-8
TR/html4/strict.dtd">
<br />
<br />
The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
<br />
Am I missing something?</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 22.04.2008 23:55:28 von usenetpersongerryt</span>
<p>On Apr 22, 12:07 pm, drhowarddrfine <robbel...@gmail.com> wrote:<br />
> To get back to basics from a thread I entered elsewhere, I just tried<br />
> to access a small C program that does nothing but create an empty web<br />
> page. I put it in cgi-bin and give that folder and the app 755<br />
> permissions. When I access mysite.com/cgi-bin/myapp, I get a 500<br />
> internal server error and the error log says: "Premature end of script<br />
> headers: /home/rbelics/public_html/cgi-bin/test".<br />
> However, run locally on the command line, the output is correct:<br />
> Content-type: text/html; charset=utf-8<br />
> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/<br />
> TR/html4/strict.dtd"><html><head><title><br />
> The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
> Am I missing something?<br />
<br />
Perhaps your push cart ran outa gas?? Then again this comes up over<br />
and<br />
over when someone embeds ^M characters in a cgi by using a M$ editor<br />
to create it in the first place. It works on command line but Apache<br />
sees<br />
^M and bales. Perhaps Dr. Curly could perform an operation...</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s there</h2><span>am 23.04.2008 00:42:13 von Felix Saphir</span>
<p>usenetpersongerryt@gmail.com wrote:<br />
<br />
> On Apr 22, 12:07 pm, drhowarddrfine <robbel...@gmail.com> wrote:<br />
>> To get back to basics from a thread I entered elsewhere, I just tried<br />
>> to access a small C program that does nothing but create an empty web<br />
>> page. I put it in cgi-bin and give that folder and the app 755<br />
>> permissions. When I access mysite.com/cgi-bin/myapp, I get a 500<br />
>> internal server error and the error log says: "Premature end of<br />
>> script headers: /home/rbelics/public_html/cgi-bin/test".<br />
>> However, run locally on the command line, the output is correct:<br />
>> Content-type: text/html; charset=utf-8<br />
>> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/<br />
>> TR/html4/strict.dtd"><html><head><title><br />
>> The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
>> Am I missing something?<br />
> <br />
> Perhaps your push cart ran outa gas?? Then again this comes up over<br />
> and<br />
> over when someone embeds ^M characters in a cgi by using a M$ editor<br />
> to create it in the first place. It works on command line but Apache<br />
> sees ^M and bales. Perhaps Dr. Curly could perform an operation...<br />
<br />
Yes. Sure. He uses notepad.exe and then sets file permissions to 0755 on<br />
a file in /home/rbelics/public_html/... Sounds reasonable.<br />
<br />
Felix</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s there</h2><span>am 23.04.2008 00:46:46 von Felix Saphir</span>
<p>drhowarddrfine wrote:<br />
<br />
> To get back to basics from a thread I entered elsewhere, I just tried<br />
> to access a small C program that does nothing but create an empty web<br />
> page. I put it in cgi-bin and give that folder and the app 755<br />
> permissions. When I access mysite.com/cgi-bin/myapp, I get a 500<br />
> internal server error and the error log says: "Premature end of script<br />
> headers: /home/rbelics/public_html/cgi-bin/test".<br />
> <br />
> However, run locally on the command line, the output is correct:<br />
> Content-type: text/html; charset=utf-8<br />
> <br />
> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/<br />
> TR/html4/strict.dtd"><html><head><title><br />
> <br />
> The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
> <br />
> Am I missing something?<br />
<br />
Perhaps: Who's the owner of that compiled C program? If you're owner and<br />
the permissions are set to 0755, then the apache user (perhaps wwwrun?)<br />
won't be allowed to execute the program. Does it work after chmod 0777?<br />
<br />
Felix</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 01:14:32 von drhowarddrfine</span>
<p>On Apr 22, 5:46 pm, Felix Saphir <dasr060-use...@yahoo.de> wrote:<br />
> drhowarddrfine wrote:<br />
> > To get back to basics from a thread I entered elsewhere, I just tried<br />
> > to access a small C program that does nothing but create an empty web<br />
> > page. I put it in cgi-bin and give that folder and the app 755<br />
> > permissions. When I access mysite.com/cgi-bin/myapp, I get a 500<br />
> > internal server error and the error log says: "Premature end of script<br />
> > headers: /home/rbelics/public_html/cgi-bin/test".<br />
><br />
> > However, run locally on the command line, the output is correct:<br />
> > Content-type: text/html; charset=utf-8<br />
><br />
> > <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/<br />
> > TR/html4/strict.dtd"><html><head><title><br />
><br />
> > The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
><br />
> > Am I missing something?<br />
><br />
> Perhaps: Who's the owner of that compiled C program? If you're owner and<br />
> the permissions are set to 0755, then the apache user (perhaps wwwrun?)<br />
> won't be allowed to execute the program. Does it work after chmod 0777?<br />
><br />
> Felix<br />
<br />
Changing it to 777 didn't do anything. I should say that I'm on a<br />
shared host system and not my own.<br />
That's a question I have about ownership. The static html files are<br />
accessed, though. Were uploaded the same way.<br />
<br />
I compiled this little program on FreeBSD but it's a Linux platform.<br />
Could that have anything to do with it? All it is is a series of<br />
printfs to stdout.</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 01:15:52 von usenetpersongerryt</span>
<p>On Apr 22, 3:42 pm, Felix Saphir <dasr060-use...@yahoo.de> wrote:<br />
> usenetpersonger...@gmail.com wrote:<br />
> > On Apr 22, 12:07 pm, drhowarddrfine <robbel...@gmail.com> wrote:<br />
> >> To get back to basics from a thread I entered elsewhere, I just tried<br />
> >> to access a small C program that does nothing but create an empty web<br />
> >> page. I put it in cgi-bin and give that folder and the app 755<br />
> >> permissions. When I access mysite.com/cgi-bin/myapp, I get a 500<br />
> >> internal server error and the error log says: "Premature end of<br />
> >> script headers: /home/rbelics/public_html/cgi-bin/test".<br />
> >> However, run locally on the command line, the output is correct:<br />
> >> Content-type: text/html; charset=utf-8<br />
> >> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/<br />
> >> TR/html4/strict.dtd"><html><head><title><br />
> >> The only thing in the cgi-bin .htaccess file is "Options ExecCGI"<br />
> >> Am I missing something?<br />
> > Perhaps your push cart ran outa gas?? Then again this comes up over and<br />
> > over when someone embeds ^M characters in a cgi by using a M$ editor<br />
> > to create it in the first place. It works on command line but Apache<br />
> > sees ^M and bales. Perhaps Dr. Curly could perform an operation...<br />
> Yes. Sure. He uses notepad.exe and then sets file permissions to 0755 on<br />
> a file in /home/rbelics/public_html/... Sounds reasonable.<br />
<br />
I re-read the post and...<br />
Only if the cgi is a script. If its compiled C then no. It could be an<br />
suexec<br />
problem too. And that should be DrHowardDrFineDrHoward. There were 3<br />
Stooges.</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 01:25:03 von drhowarddrfine</span>
<p>And that should be DrHowardDrFineDrHoward. There were 3<br />
> Stooges.<br />
<br />
Forums truncate too often.</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 01:37:44 von usenetpersongerryt</span>
<p>On Apr 22, 4:25 pm, drhowarddrfine <robbel...@gmail.com> wrote:<br />
> And that should be DrHowardDrFineDrHoward. There were 3 Stooges.<br />
> Forums truncate too often.<br />
<br />
Now that we've established that universe is flawed, the origiinal<br />
question<br />
remains... You are attempting to run a cgi in a user directory. As I<br />
recall<br />
suexec must or at least should be enabled for this to work, compiled<br />
binary or script.<br />
The log message may be misleading you.</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 01:47:22 von drhowarddrfine</span>
<p>On Apr 22, 6:37 pm, usenetpersonger...@gmail.com wrote:<br />
> On Apr 22, 4:25 pm, drhowarddrfine <robbel...@gmail.com> wrote:<br />
><br />
> > And that should be DrHowardDrFineDrHoward. There were 3 Stooges.<br />
> > Forums truncate too often.<br />
><br />
> Now that we've established that universe is flawed, the origiinal<br />
> question<br />
> remains... You are attempting to run a cgi in a user directory. As I<br />
> recall<br />
> suexec must or at least should be enabled for this to work, compiled<br />
> binary or script.<br />
> The log message may be misleading you.<br />
<br />
I've read elsewhere that might have something to do with it. I'll<br />
pass that along as I finally decided to contact the sysadmins to see<br />
if they can see what's happening. I get the feeling that, unless it's<br />
PHP, they don't know.</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 04:59:18 von drhowarddrfine</span>
<p>Well, it's more complicated than I thought. I compile the app on<br />
FreeBSD but one of the libraries doesn't exist on Linux. I haven't<br />
thoroughly looked into it but I have to find a way to make this more<br />
standalone.<br />
<br />
Thanks guys.<br />
Doc</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s there</h2><span>am 23.04.2008 10:31:53 von Felix Saphir</span>
<p>drhowarddrfine wrote:<br />
> On Apr 22, 5:46 pm, Felix Saphir <dasr060-use...@yahoo.de> wrote:<br />
>> drhowarddrfine wrote:<br />
>>> [small C program as cgi, chmod 0755, gives error 500]<br />
>> [permissions okay? chmod 0777?]<br />
> <br />
> Changing it to 777 didn't do anything. I should say that I'm on a<br />
> shared host system and not my own. That's a question I have about<br />
> ownership. The static html files are accessed, though. Were uploaded<br />
> the same way. <br />
> <br />
> I compiled this little program on FreeBSD but it's a Linux platform.<br />
> Could that have anything to do with it? All it is is a series of<br />
> printfs to stdout.<br />
<br />
Sorry, I'm not an expert with C across different platforms, but it might<br />
help to link the libraries statically (heard that somewhere :) ). Is<br />
the architecture on both systems the same (like x86)?<br />
<br />
Felix</p>
</article>
<article>
<h2>Re: cgi web app gives "premature end of script headers" but it"s</h2><span>am 23.04.2008 14:17:48 von drhowarddrfine</span>
<p>On Apr 23, 3:31 am, Felix Saphir <dasr060-use...@yahoo.de> wrote:<br />
> drhowarddrfine wrote:<br />
> > On Apr 22, 5:46 pm, Felix Saphir <dasr060-use...@yahoo.de> wrote:<br />
> >> drhowarddrfine wrote:<br />
> >>> [small C program as cgi, chmod 0755, gives error 500]<br />
> >> [permissions okay? chmod 0777?]<br />
><br />
> > Changing it to 777 didn't do anything. I should say that I'm on a<br />
> > shared host system and not my own. That's a question I have about<br />
> > ownership. The static html files are accessed, though. Were uploaded<br />
> > the same way.<br />
><br />
> > I compiled this little program on FreeBSD but it's a Linux platform.<br />
> > Could that have anything to do with it? All it is is a series of<br />
> > printfs to stdout.<br />
><br />
> Sorry, I'm not an expert with C across different platforms, but it might<br />
> help to link the libraries statically (heard that somewhere :) ). Is<br />
> the architecture on both systems the same (like x86)?<br />
><br />
> Felix<br />
<br />
Yes, they're both x86. I briefly attempted static linking before I<br />
went to bed. Uploaded it and it still failed but I may not have<br />
compiled it correctly. I have to wake up and dig around on this.</p>
</article>
<footer>
<a href="/">Index</a> |
<a href="/impressum.php">Impressum</a> |
<a href="/datenschutz.php">Datenschutz</a> |
<a href="https://www.xodox.de/">XODOX</a>
</footer>
</main>
</body>
</html>