[Nagiosplug-devel] check_http bug

[Karl DeBisschop]

On Fri, 2003-08-22 at 18:34, Dmitri Smirnov wrote:
> Sorry, guys,
> 
> Based on output this check_http was compiled with cookie support (patch
> from me?)

different issue.

However, if you want the patch integrated, it will happen sooner if diff
is against CVS HEAD

> I think I've made a new patch few weeks ago to correct the loop problem
> with IIS:
> [ 778644 ] check_http cookies and keep-alive support 
> 
> Sorry if new patch is broken again. ;(
> 
> Dmitri
> 
> -----Original Message-----
> From: Voon, Ton [mailto:Ton.Voon at egg.com] 
> Sent: Friday, August 22, 2003 6:15 AM
> To: 'Karl DeBisschop'
> Cc: 'nagiosplug-devel at lists.sf.net'
> Subject: RE: [Nagiosplug-devel] check_http bug
> 
> > On Fri, 2003-08-22 at 06:16, Voon, Ton wrote:
> > > Karl,
> > > 
> > > I seem to have a problem with the CVS HEAD version of
> > check_http, but I
> > > can't find a fix. This works okay on r130, but was failing
> > before the
> > > endless redirection loop change. Don't know exactly which
> > version introduced
> > > the problem.
> > > 
> > > On SunOS 5.6, if I run check_http against www.egg.com
> > (through a proxy, but
> > > also fails on internal test machines), there is a coredump.
> > > 
> > > Here's the output:
> > > -----
> > > $ ./check_http -v -H localhost -p 5865 -u http://www.egg.com/
> > > --onredirect=follow option f:4 
> > > http://localhost:5865http://www.egg.com/ is 213 characters
> > > STATUS: HTTP/1.1 301 Unknown reason
> > > **** HEADER ****
> > > Via: 1.1 PNNPXP01, 1.1 PNNPXP02
> > > Connection: close
> > > Content-Length: 0
> > > Date: Fri, 22 Aug 2003 09:58:03 GMT
> > > Server: Netscape-Enterprise/3.6 SP3
> > > Location: http://new.egg.com/newegg
> > > **** CONTENT ****
> > > 
> > > http://new.egg.com:80/newegg is 310 characters
> > > STATUS: HTTP/1.1 302 Moved Temporarily
> > > **** HEADER ****
> > > Server: Netscape-Enterprise/4.1
> > > Date: Fri, 22 Aug 2003 09:58:04 GMT
> > > Set-Cookie:  ssuid=Maz84g00nVM0000EfQnFb643Kf; path= /;
> > expires=Saturday,
> > > 06-Sep-2014 23:50:08 GMT
> > > Location:  http://new.egg.com/visitor/0,,3_11060--View_819,00.html
> > > Content-length: 0
> > > Connection: close
> > > **** CONTENT ****
> > > 
> > > Segmentation Fault(coredump)
> > > 
> > > -----
> > > 
> > > With a truss I get (tail last lines):
> > > -----
> > > write(1, " h t t p : / / l o c a l".., 59)      = 59
> > > STATUS: HTTP/1.1 301 Unknown reason
> > > write(1, " S T A T U S :   H T T P".., 36)      = 36
> > > **** HEADER ****
> > > Via: 1.1 PNNPXP01, 1.1 PNNPXP02
> > > Connection: close
> > > Content-Length: 0
> > > Date: Fri, 22 Aug 2003 09:58:34 GMT
> > > Server: Netscape-Enterprise/3.6 SP3
> > > Location: http://new.egg.com/newegg
> > > **** CONTENT ****
> > > 
> > > write(1, " * * * *   H E A D E R  ".., 217)     = 217
> > > open64("/etc/.name_service_door", O_RDONLY)     = 3
> > > fcntl(3, F_SETFD, 0x00000001)                   = 0
> > > door_info(3, 0xEF62BD60)                        = 0
> > > door_call(3, 0xEFFFD458)                        = 0
> > > so_socket(2, 2, 0, "", 1)                       = 4
> > > connect(4, 0x00032708, 16)                      = 0
> > > send(4, " G E T   / n e w e g g  ".., 96, 0)    = 96
> > > recv(4, " H T T P / 1 . 1   3 0 2".., 1023, 0)  = 310
> > > recv(4, 0x00031D44, 1023, 0)                    = 0
> > > close(4)                                        = 0
> > > alarm(0)                                        = 0
> > > http://new.egg.com:80/newegg is 310 characters
> > > write(1, " h t t p : / / n e w . e".., 47)      = 47
> > > STATUS: HTTP/1.1 302 Moved Temporarily
> > > write(1, " S T A T U S :   H T T P".., 39)      = 39
> > > **** HEADER ****
> > > Server: Netscape-Enterprise/4.1
> > > Date: Fri, 22 Aug 2003 09:58:35 GMT
> > > Set-Cookie:  ssuid=Maz82w00gRo00018fQnFiNT3x3; path= /;
> > expires=Saturday,
> > > 06-Sep-2014 23:50:08 GMT
> > > Location:  http://new.egg.com/visitor/0,,3_11060--View_819,00.html
> > > Content-length: 0
> > > Connection: close
> > > **** CONTENT ****
> > > 
> > > write(1, " * * * *   H E A D E R  ".., 311)     = 311
> > > door_info(3, 0xEFFFD340)                        = 0
> > > door_call(3, 0xEFFFD328)                        = 0
> > > so_socket(2, 2, 0, "", 1)                       = 4
> > > connect(4, 0x00032738, 16)                      = 0
> > >     Incurred fault #6, FLTBOUNDS  %pc = 0xEF5C7020
> > >       siginfo: SIGSEGV SEGV_MAPERR addr=0x2E6BD07C
> > >     Received signal #11, SIGSEGV [default]
> > >       siginfo: SIGSEGV SEGV_MAPERR addr=0x2E6BD07C
> > >         *** process killed ***
> > > -----
> > > 
> > > I have narrowed the problem down to line 500 in check_http.c:
> > > asprintf (&buf, "%s %s HTTP/1.0\r\n", http_method, server_url);
> > > 
> > > But I can't see anything wrong with it (in fact, the line
> > is the same from
> > > r130). Also a check_http to the redirected url is okay. 
> > I've tried a buf =
> > > strdup(""), but this didn't fix. Any ideas?
> > 
> > I ran across the error when I was working on the redirection loop 
> > limits. In my test cases, it was fixed by my changes.
> > 
> > But I did not find a bug and fix it - it was a side effect.
> > 
> > I don't see the problem in the current code either, butit is quite 
> > obviously there. Is there some URL I can use to run this against so I 
> > can try and debug it?
> > 
> > --
> > Karl
> > 
> 
> I think you should be able to recreate it with check_http -H www.egg.com
> -u / --onredirect=follow
> 
> I can't check this out because of the firewall at work.
> 
> Ton
> 
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