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view misc/README @ 8475:4364b39de407
Resolver: explicit check for compression pointers in question.
Since nginx always uses exactly one entry in the question section of
a DNS query, and never uses compression pointers in this entry, parsing
of a DNS response in ngx_resolver_process_response() does not expect
compression pointers to appear in the question section of the DNS
response. Indeed, compression pointers in the first name of a DNS response
hardly make sense, do not seem to be allowed by RFC 1035 (which says
"a pointer to a prior occurance of the same name", note "prior"), and
were never observed in practice.
Added an explicit check to ngx_resolver_process_response()'s parsing
of the question section to properly report an error if compression pointers
nevertheless appear in the question section.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 25 May 2021 15:17:50 +0300 |
parents | 001beb963d86 |
children |
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make -f misc/GNUmakefile release the required tools: *) xsltproc to build CHANGES, *) xslscript.pl ( http://hg.nginx.org/xslscript ) to build XSLTs from XSLScript sources. make -f misc/GNUmakefile icons the required tool: *) netpbm to create Win32 icons from xpm sources.