Forum Discussion
emilio_104458
Nimbostratus
Nimbostratusissue with newline
hi all,
i've a strange issue with an irule:
i can't add new line in a variable.
i try with:
set allHeaders [concat $allHeadersTemp '\n']
set allHeaders [concat $allHeadersTemp "\n"]
set allHeaders [concat $allHeadersTemp \n]
set allHeaders [concat $allHeadersTemp '\r\n\r\n']
set allHeaders [concat $allHeadersTemp '\r\n']
set allHeaders [concat $allHeadersTemp "\r\n"]
set allHeaders [concat $allHeadersTemp "\r\n\r\n"]
set allHeaders [append allHeadersTemp "\r\n\r\n"]
and so on....
but when i log the variable with
log local0.debug " $allHeader"
the results is alway a single line with blank space instead new line.
can u help me?
thanks in advice :)
2 Replies
- Newlines won't print in the log messages and the function you're looking for is called "join." I think the combination is what may be causing your issue here. Try printing them in an HTTP response like this and see how it works:
ltm rule concat_http_headers {when HTTP_REQUEST { set header_names [HTTP::header names] foreach header $header_names { lappend headers "$header: [HTTP::header value $header]" } HTTP::respond 200 content [join $headers "\n"]}}
Hope this helps,
George 
emilio_104458hi,
thanks for replay.
this variable is fill to send througth connect command to backend server, and the tcpdump on server side shows that newline doesn't arrive well formatted.
after a lot of test i think the problem is concat command and i've resolved using append in this way:
set invia [concat "GET " $myUri ]
append invia " HTTP/1.0\r\n\r\n"
thanks.
