tcpdump prints a description of the contents of packets on a network interface which match a given boolean expression. It can also be run with the -w flag, which causes it to save the packet data to a file for later analysis, and/or with the -r flag, which causes it to read from a saved packet file rather than to read packets from a network interface. In all cases, only packets which match the expression will be processed by tcpdump. tcpdump logs more than just TCP, IP, or ethernet packets, but has a whole suite of decoders, including ones for USB.
The Qore Sybase and FreeTDS Modules provide Sybase and FreeTDS DBI drivers to Qore, allowing Qore programs to communicate with Sybase and MS SQL Server databases. The modules support transaction handling, transparent character set conversions, threading, stored procedure execution with native input binding and output placeholder support, and more. Both modules are built from the same source.