Re: Howto read line from a stream

["Randy Brukardt" <randy@rrsoftware.com>]

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:18nn8atp3gdq1$.6g5cqv5h6u1c.dlg@40tude.net...
...
>> My protocol says that every line ends with CR & LF, only length can
>> vary.
>
> The best practice of dealing with texts (streams or not) is to use LF as a
> line terminator and remove training (or any) CR's from the buffer. This
> makes it working under both Linux and Windows.

That's lousy advice if he is working with a protocol that is defined outside 
of his system. For instance, most Internet protocols (like HTTP, SMTP, and 
FTP) require lines to be ended with CR LF. Lines that don't include the CR 
are simply wrong and do not conform to the protocol. The originating system 
is irrelevant, Windows, Linux, Mac, whatever. Indeed, the lack of those 
characters is usually a good sign that spammers, malware, and the like is 
trying to access your system. For instance, my spam filter blocks e-mail 
messages that are missing the CRs required by the protocol, because only 
clueless or sloppy systems miss them (in addition, some older e-mail clients 
would crash on such messages, and there still is a danger to allowing them 
through).

                                                       Randy.