8.4. Setting Up VLINK and TLINK

The vlink and tlink programs, compiled from vlink.c and tlink.c, are small C programs which contact and interface to a running Interchange daemon. The VLINK executable is normally made setuid to the user account which runs Interchange, so that the UNIX-domain socket file can be set to secure permissions (user read-write only). It is normally not necessary for the user to do anything. They will be compiled by the configuration program. If the Interchange daemon is not running, either of the programs will display a message indicating that the server is not available. The following defines in the produced config.h should be set: