Is it possible to use vsizip and vsicurl on a password protected ftp site?  

Something like this command with user and password passed somehow:

ogrinfo -ro -al -so 
/vsizip/vsicurl/ftp://example.com/foldername/file.zip/example.shp 

I rather hopefully tried some switches, -user:user -password:password, which 
did not work.

Thanks for the vsi support, it is awesome!  For vsizip/gz/tar, I find this wiki 
page very useful, http://trac.osgeo.org/gdal/wiki/UserDocs/ReadInZip  I can 
find all the gdal drivers that support virtual files by following the 
directions on that page (driver marked with 'v' when running 'gdalinfo 
--formats').  I tried a similar approach for ogr (ogrinfo --formats and looked 
for 'v') without learning much.  Is there a way to determine virtual file 
support in ogr?  I found that shp is supported by successfully testing it and 
recalling an IRC mention.  

Most of what I find for vsicurl is here, 
http://trac.osgeo.org/gdal/wiki/Release/1.8.0-News  Is there somewhere else 
that I should look for documentation on vsicurl?  I gave a shot at adding 
information to the vsizip wiki page, can someone review it to make sure that I 
am not spreading false information and correct or delete it if needed?  I added 
to the vsizip page rather than making a different page since vsicurl is often 
used with vsizip.  Currently, the example commands that I put there give an 
error claiming that the .shx is corrupt.  For instance, ogrinfo -ro -al -so 
/vsicurl/http://trac.osgeo.org/gdal/browser/trunk/autotest/ogr/data/poly.shp


Any help appreciated, Eli

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