wget -k downloading to shares fails with seemingly spurious "permission denied" error

[Barry Kelly <bkelly dot ie at gmail dot com>]

I'm having a problem that doesn't seem to admit logical explanation,
apart from a bug in either wget, Cygwin or Windows' implementation of
SMB shares.

Assume the current directory is a UNC path to a share on another machine
(say, //foo/blah), with full permissions. Run the following command from
Cygwin bash:

$ wget -k google.com

This should download an index.html, then convert any relative links in
the html to absolute links. However, when I run it, I get output that
looks more like this:

$ wget -k google.com
# ...
Length: unspecified [text/html]
Saving to: `index.html'

     0K                                                       58.3K=0.1s

2009-03-23 21:21:38 (58.3 KB/s) - `index.html' saved [6528]

Converting index.html... Unable to delete `index.html': Permission
denied
Converted 1 files in 0.02 seconds.

I've done an strace:

   67 1028672 [main] wget 2016 unlink: _unlink (\\foo\blah\baz)
 3815 1032487 [main] wget 2016 seterrno_from_win_error:
/ext/build/netrel/src/cygwin-1.5.25-15/winsup/cygwin/syscalls.cc:269
windows error 5
  110 1032597 [main] wget 2016 geterrno_from_win_error: windows error 5
== errno 13
   80 1032677 [main] wget 2016 __set_errno: void
seterrno_from_win_error(const char*, int, DWORD):310 val 13
   80 1032757 [main] wget 2016 unlink: -1 = unlink (baz)
  245 1033002 [main] wget 2016 sig_send: sendsig 0x150, pid 2016, signal
-34, its_me 1
   88 1033090 [main] wget 2016 sig_send: wakeup 0x24C
   81 1033171 [main] wget 2016 sig_send: Waiting for pack.wakeup 0x24C
    4 1033175 [sig] wget 2016 wait_sig: signalling pack.wakeup 0x24C
   98 1033273 [main] wget 2016 sig_send: returning 0x0 from sending
signal -34
   84 1033357 [main] wget 2016 fhandler_base::write: binary write
Unable to delete `  100 1033457 [main] wget 2016 sig_send: sendsig
0x150, pid 2016, signal -34, its_me 1

I can delete the downloaded files just fine using `unlink', and its
unlink call appears unmolested:

   28   33813 [main] unlink 2684 unlink: _unlink (\\foo\blah\baz)
 1347   35160 [main] unlink 2684 unlink: DeleteFile after
CreateFile/CloseHandle succeeded
   47   35207 [main] unlink 2684 unlink: 0 = unlink (baz)
  176   35383 [main] unlink 2684 close: close (1)


Can anyone else verify the problem? Can anything be done to fix it?

-- Barry

-- 
http://barrkel.blogspot.com/

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