Please give me the solution as below mentioned query.

I want to migrate the Unix-informix to unix -oracle 9i. Already Existing Unix version is 4.1 and informix version is 4.10, HP9000IBM. Also, to be migrated unix version is 5.3 and Oracle-9i, RS6000 IBM. Is there any tool(free downloadable software) to migrated for the same? and if any other way pls send to me.

Thank u very much
Poonguzhali Angels