[rtmpdump] [PATCH] Content Length check should be case insensitive

[Daniel Burr]

Hello all,

I have found a minor problem in rtmpdump which took me quite a while to 
track down.

In HTTP_read() the following check is done to make sure that the header 
contains a content length field:

    ptr = strstr(r->m_sb.sb_start, "Content-Length:");

Not every HTTP server and proxy uses this exact capitalisation.  In my 
case the response header is:

HTTP/1.1 200 OK
Date: Thu, 12 Aug 2010 03:21:05 GMT
Content-length: 17
Content-type: application/x-fcs
Cache-control: no-cache
Server: FlashCom/3.5.3
Via: 1.1 proxy1
Proxy-agent: Sun-Java-System-Web-Proxy-Server/4.0

The call to strstr() will not match in this case.  It could be be easily 
fixed by replacing strstr() with strcasestr() but this is a GNU 
extension.  To make a portable solution it is necessary to iterate and 
call strncasecmp() like in the attached patch.

DB

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