bug in busybox with http redirects

[Natanael Copa]

Hi,

I have a pretty annoying issue with busybox wget and http redirects:

busybox wget http://git.alpinelinux.org/cgit/acf-tinydns.git/snapshot/acf-tinydns-0.7.0.tar.bz2

$ busybox wget -O /dev/null
http://git.alpinelinux.org/cgit/acf-tinydns.git/snapshot/acf-tinydns-0.7.0.tar.bz2
Connecting to git.alpinelinux.org (91.220.88.36:80)
wget: server returned error: HTTP/1.1 400 Bad Request

With GNU wget:
$ wget -O /dev/null http://git.alpinelinux.org/cgit/acf-tinydns.g
it/snapshot/acf-tinydns-0.7.0.tar.bz2
--2011-12-16 16:45:01--
http://git.alpinelinux.org/cgit/acf-tinydns.git/snapshot/acf-tinydns-0.7.0.tar.bz2
Resolving git.alpinelinux.org... 91.220.88.36
Connecting to git.alpinelinux.org|91.220.88.36|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: /cgit/acf-tinydns/snapshot/acf-tinydns-0.7.0.tar.bz2 [following]
--2011-12-16 16:45:01--
http://git.alpinelinux.org/cgit/acf-tinydns/snapshot/acf-tinydns-0.7.0.tar.bz2
Reusing existing connection to git.alpinelinux.org:80.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-bzip2]
Saving to: `/dev/null'

    [ <=>                                   ] 10,917      --.-K/s   in 0.07s

2011-12-16 16:45:01 (147 KB/s) - `/dev/null' saved [10917]

works also with curl --location.

It has been like that for a while.

I intended to git bisect it but when trying to build older commits i get:

Makefile:1270: *** mixed implicit and normal rules.  Stop.

so I gave up try find the exact commit where it was introduced.


When I look at the wireshark "folow TCP stream" i see this:
GET /cgit/acf-tinydns/snapshot/acf-tinydns-0.7.0.tar.bz2 HTTP/1.1

Host: f-tinydns/snapshot/acf-tinydns-0.7.0.tar.bz2

User-Agent: Wget

Connection: close



HTTP/1.1 400 Bad Request

...

so looks like wget does something strange with the "host" header on
the redirection.

-- 
Natanael Copa