Date: Sat, 2 Jan 2010 15:04:14 GMT From: Yasir <yasir27@mail.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: docs/142243: Netcat (nc(1)) manual mistake Message-ID: <201001021504.o02F4EAU016709@www.freebsd.org> Resent-Message-ID: <201001021510.o02FA4H0088131@freefall.freebsd.org>
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>Number: 142243
>Category: docs
>Synopsis: Netcat (nc(1)) manual mistake
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-doc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: doc-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Jan 02 15:10:04 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Yasir
>Release: 7.1-RELEASE
>Organization:
>Environment:
FreeBSD conductor.loc 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Jan 1 14:37:25 UTC 2009 root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
>Description:
man 1 nc states in TALKING TO SERVERS section:
[..]
For example, to retrieve the home page of a web site:
$ echo -n "GET / HTTP/1.0\r\n\r\n" | nc host.example.com 80
[..]
But this kind of request often returns either nothing or something irrelevant, maybe due to a strong server implementation (e.g. meets RFCs).
>How-To-Repeat:
According to man one could do the following:
$ echo "GET / HTTP/1.0\r\n\r\n" | nc example.com 80
But nothing is returned upon request.
Another attempt which also fails:
$ echo "HEAD / HTTP/1.0\r\n\r\n" | nc ya.ru 80
<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx</center>
</body>
</html>
>Fix:
There should have been used printf(1) instead.
Man should be corrected, namely, sed 's/echo -n/printf/'
>Release-Note:
>Audit-Trail:
>Unformatted:
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