sendmsg(1) on Linux
The text 49f4a0754726, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
send a message via Internet
Flags it lists
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-4 -
-6 -
-M -
-V -
-f -
-l -
-m -
-q -
-r -
-s -
-u -
-v