strndup which might come from the former.


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(Varnish Stream Sockets) as I intend to eventually add support for AF_UNIX
sockets.

This also moves the accept filter code out from VSS_listen() (previously
TCP_open()) and into a separate function in tcp.c


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* Make http auth work



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pointer gymnastics getting out of hand.

In addition to the obvious alloc/return primitives there are also 
reserve/release primitives for when we don't know the length yet.



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require gcc 4), tune autogen.des accordingly.


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and which is copied to the shared parameter block every time a parameter
changes as well as immediately before forking off a child.  This prevents a
hypothetical compromised child from changing the parent's idea of run-time
parameters (which would, for example, allow it to trick the the parent into
starting a new, hypothetically exploitable child with the attacker's choice
of uid / gid).

While I'm here, correct the use of the "volatile" qualifier - it is the
parmeter block itself which can change unpredictably, not the pointer.


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user and group to which the child process will switch immediately after fork()
returns, before it starts accepting connections.  The default values are
"nobody" and "nogroup" (they should probably be tweakable at compile time...)

Note that this does not provide full privilege separation, as there are still
channels between the parent and child processes which need to be monitored,
but it is an improvement on the previous situation.


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varnishncsa is now able to produce backend logs. A couple of problems still remain: missing hostname and timestamp for backend communication. This could be solved with some extra tags serving the same purpose as ReqStart and ReqEnd does for client communication, providing this information.



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- Fixed initrc-script bug only visible on el4 (fixes #107)



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references to the object, so HSH_Deref() will free its storage.


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caching of backend issues.

Brief summary:

 - moved http_msg array from cache_response.c to cache_http.c,
   introduced http_StatusMessage() lookup function

 - introduced http_Put{Protocol,Status,Response} to complement
   http_PrintfHeader().

 - introduced SYN_ErrorPage() in a new file, cache_synthetic.c.
   SYN_ErrorPage() populates the session's current object with the
   specified error code and a corresponding HTML error page; it is the
   caller's responsibility to ensure that the session has a suitable
   object (i.e. one that doesn't already have headers or a body)

 - rewrote RES_Error() to simply call SYN_ErrorPage() (with ttl = 0) and
   RES_WriteObj().

 - rewrote cnt_fetch() to use SYN_ErrorPage() to create a 503 page with
   a TTL of 30 seconds when Fetch() fails.

 - removed the call to RES_Error() in cache_backend.c; the error
   trickles back up to cnt_fetch() anyway.

Comments from review:

 - Memory allocation and pointer gymnastics for the header and body
   are duplicated all over the place (in new and pre-existing code)
   and should be centralized and hidden behind a suitable API.

 - The http_*() API needs refactoring, we shouldn't need four
   different functions to manipulate four different entries in the
   same array.


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successfully locked it.


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Remove "oknodo" to actually provide an error message if we cannot stop the service.

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