SCO OpenServer and UnixWare 7 support the Internet file transfer protocol (FTP) interface developed for SCO OpenServer; this interface is defined in /usr/lib/libftp.so. SCO UnixWare 2.1.X does not support this interface natively, but it is provided with the UnixWare 2 Compatibility Module.
Applications compiled with the UnixWare and OpenServer Development Kit that use this interface will run on UnixWare 7 or SCO OpenServer; and on SCO UnixWare 2.1.X with the Compatibility Module installed.
Source code that uses this interface will compile on UnixWare 7 and SCO OpenServer without any modifications.
To compile and link a program that uses the FTP interface, do the following:
cc option file -lftp