Sst can be used to connect to SSL-encrypted network ser-
vices or it can be used as an SSL front-end to network
servers. Sst can be used interactively, or in an inetd
setting, or it can be embedded inside other programs (eg.
Amanda).
One of the main goals of sst is to be as basic as possible
so in most non-embedded cases sst uses netcat to setup the
networking I/O. Sst uses a socketpair(2) pipe to stay in
contact with its netcat child process. In this way sst
only has to concern itself with file descriptors.
In the embedded mode sst expects the parent program to set
up the networking I/O and to provide the appropriate file
descriptors. In embedded client mode ("-c"), clear data
is read from (or written to) stdin (fildes 0) and SSL-
encrypted data is read from (or written to) stdout (fildes
1). In embedded server mode ("-s"), SSL-encrypted data is
read from (or written to) stdin and clear data read from
(or written to) stdout.
WWW: http://utcc.utoronto.ca/~pkern/stuff/sst/
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