[exim-dev] [Bug 2630] New: $readsocket bug

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Nuovi argomenti: [exim-dev] [Bug 2630] $readsocket bug
Oggetto: [exim-dev] [Bug 2630] New: $readsocket bug
https://bugs.exim.org/show_bug.cgi?id=2630

            Bug ID: 2630
           Summary: $readsocket bug
           Product: Exim
           Version: 4.94
          Hardware: x86-64
                OS: FreeBSD
            Status: NEW
          Severity: bug
          Priority: medium
         Component: String expansion
          Assignee: unallocated@???
          Reporter: eg.sh.rab@???
                CC: exim-dev@???


Hello.



Faced an error in the work of the readsocket .

${readsocket{<name>}{<request>}{<options>}{<eol string>}{<fail string>}}



The problem arises when using the fourth argument ({<eol string>}) .

It forcibly removes all “\n” from the string it receives when requested.

In theory, everyone who uses memcached should have encountered this error.



Example:

${readsocket{inet:MEMCACHED_HOST:MEMCACHED_PORT}{get
$acl_c_memcache_key\r\n}{5s}{\n}}



In version 4.93 and lowest, this request will return:

"VALUE 123.123.123.123 0 21\r\ntest@???\r\nEND\r\n"



In version 4.94:
"VALUE 123.123.123.123 0 21\rtest@???\rEND\r"

Without “{\n}” argument, this request will return:

"VALUE 123.123.123.123 0 21\r\ntest@???\r\nEND\r\n"



The current version of exim is:

# exim --version

Exim version 4.94 #1 (FreeBSD 11.2) built 27-Jul-2020 15:46:45

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