# socat -h
libtsocks: Unresolved symbol: close
20:07:09 libtsocks(9637): Unresolved symbol: connect
20:07:09 libtsocks(9637): Unresolved symbol: close
socat by Gerhard Rieger - see www.dest-unreach.org
Usage:
socat [options]
options:
-V print version and feature information to stdout, and exit
-h|-? print a help text describing command line options and addresses
-hh like -h, plus a list of all common address option names
-hhh like -hh, plus a list of all available address option names
-d increase verbosity (use up to 4 times; 2 are recommended)
-D analyze file descriptors before loop
-ly[facility] log to syslog, using facility (default is daemon)
-lf log to file
-ls log to stderr (default if no other log)
-lm[facility] mixed log mode (stderr during initialization, then syslog)
-lp set the program name used for logging
-lu use microseconds for logging timestamps
-lh add hostname to log messages
-v verbose data traffic, text
-x verbose data traffic, hexadecimal
-b set data buffer size (8192)
-s sloppy (continue on error)
-t wait seconds before closing second channel
-T total inactivity timeout in seconds
-u unidirectional mode (left to right)
-U unidirectional mode (right to left)
-g do not check option groups
-L try to obtain lock, or fail
-W try to obtain lock, or wait
-4 prefer IPv4 if version is not explicitly specified
-6 prefer IPv6 if version is not explicitly specified
bi-address:
pipe[,] groups=FD,FIFO
!!
single-address:
[,]
address-head:
abstract-client: groups=FD,SOCKET,RETRY,UNIX
abstract-connect: groups=FD,SOCKET,RETRY,UNIX
abstract-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,UNIX
abstract-recv: groups=FD,SOCKET,RETRY,UNIX
abstract-recvfrom: groups=FD,SOCKET,CHILD,RETRY,UNIX
abstract-sendto: groups=FD,SOCKET,RETRY,UNIX
create: groups=FD,REG,NAMED
exec: groups=FD,FIFO,SOCKET,EXEC,FORK,TERMIOS,PTY,PARENT,UNIX
fd: groups=FD,FIFO,CHR,BLK,REG,SOCKET,TERMIOS,UNIX,IP4,IP6,UDP,TCP,SCTP
gopen: groups=FD,FIFO,CHR,BLK,REG,SOCKET,NAMED,OPEN,TERMIOS,UNIX
interface: groups=FD,SOCKET
ip-datagram:: groups=FD,SOCKET,RANGE,IP4,IP6
ip-recv: groups=FD,SOCKET,RANGE,IP4,IP6
ip-recvfrom: groups=FD,SOCKET,CHILD,RANGE,IP4,IP6
ip-sendto:: groups=FD,SOCKET,IP4,IP6
ip4-datagram:: groups=FD,SOCKET,RANGE,IP4
ip4-recv: groups=FD,SOCKET,RANGE,IP4
ip4-recvfrom: groups=FD,SOCKET,CHILD,RANGE,IP4
ip4-sendto:: groups=FD,SOCKET,IP4
ip6-datagram:: groups=FD,SOCKET,RANGE,IP6
ip6-recv: groups=FD,SOCKET,RANGE,IP6
ip6-recvfrom: groups=FD,SOCKET,CHILD,RANGE,IP6
ip6-sendto:: groups=FD,SOCKET,IP6
open: groups=FD,FIFO,CHR,BLK,REG,NAMED,OPEN,TERMIOS
openssl:: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,TCP,OPENSSL
openssl-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP4,IP6,TCP,OPENSSL
pipe: groups=FD,FIFO,NAMED,OPEN
proxy::: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,TCP,HTTP
pty groups=FD,NAMED,TERMIOS,PTY
readline groups=FD,READLINE,TERMIOS
sctp-connect:: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,SCTP
sctp-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP4,IP6,SCTP
sctp4-connect:: groups=FD,SOCKET,CHILD,RETRY,IP4,SCTP
sctp4-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP4,SCTP
sctp6-connect:: groups=FD,SOCKET,CHILD,RETRY,IP6,SCTP
sctp6-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP6,SCTP
socket-connect::: groups=FD,SOCKET,CHILD,RETRY
socket-datagram:::: groups=FD,SOCKET,RANGE
socket-listen::: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE
socket-recv:::: groups=FD,SOCKET,RANGE
socket-recvfrom:::: groups=FD,SOCKET,CHILD,RANGE
socket-sendto:::: groups=FD,SOCKET
socks4::: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,TCP,SOCKS4
socks4a::: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,TCP,SOCKS4
stderr groups=FD,FIFO,CHR,BLK,REG,SOCKET,TERMIOS,UNIX,IP4,IP6,UDP,TCP,SCTP
stdin groups=FD,FIFO,CHR,BLK,REG,SOCKET,TERMIOS,UNIX,IP4,IP6,UDP,TCP,SCTP
stdio groups=FD,FIFO,CHR,BLK,REG,SOCKET,TERMIOS,UNIX,IP4,IP6,UDP,TCP,SCTP
stdout groups=FD,FIFO,CHR,BLK,REG,SOCKET,TERMIOS,UNIX,IP4,IP6,UDP,TCP,SCTP
system: groups=FD,FIFO,SOCKET,EXEC,FORK,TERMIOS,PTY,PARENT,UNIX
tcp-connect:: groups=FD,SOCKET,CHILD,RETRY,IP4,IP6,TCP
tcp-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP4,IP6,TCP
tcp4-connect:: groups=FD,SOCKET,CHILD,RETRY,IP4,TCP
tcp4-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP4,TCP
tcp6-connect:: groups=FD,SOCKET,CHILD,RETRY,IP6,TCP
tcp6-listen: groups=FD,SOCKET,LISTEN,CHILD,RETRY,RANGE,IP6,TCP
tun:/ groups=FD,CHR,NAMED,OPEN,INTERFACE
udp-connect:: groups=FD,SOCKET,IP4,IP6,UDP
udp-datagram:: groups=FD,SOCKET,RANGE,IP4,IP6,UDP
udp-listen: groups=FD,SOCKET,LISTEN,CHILD,RANGE,IP4,IP6,UDP
udp-recv: groups=FD,SOCKET,RANGE,IP4,IP6,UDP
udp-recvfrom: groups=FD,SOCKET,CHILD,RANGE,IP4,IP6,UDP
udp-sendto:: groups=FD,SOCKET,IP4,IP6,UDP
udp4-connect:: groups=FD,SOCKET,IP4,UDP
udp4-datagram:: groups=FD,SOCKET,RANGE,IP4,UDP
udp4-listen: groups=FD,SOCKET,LISTEN,CHILD,RANGE,IP4,UDP
udp4-recv: groups=FD,SOCKET,RANGE,IP4,UDP
udp4-recvfrom:: groups=FD,SOCKET,CHILD,RANGE,IP4,UDP
udp4-sendto:: groups=FD,SOCKET,IP4,UDP
udp6-con 
