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new address options shut-null, null-eof

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This commit is contained in:
Gerhard Rieger 2009-04-02 17:02:29 +02:00
parent 793763677a
commit 806bccbf94
13 changed files with 96 additions and 10 deletions

10
doc/socat.yo
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@ -1490,6 +1490,16 @@ label(OPTION_SHUT_DOWN)dit(bf(tt(shut-down)))
label(OPTION_SHUT_CLOSE)dit(bf(tt(shut-close)))
Changes the (address dependent) method of shutting down the write part of a
connection to tt(close\(fd)).
label(OPTION_SHUT_NULL)dit(bf(tt(shut-null)))
When one address indicates EOF, socat() will send a zero sized packet to the
write channel of the other address to transfer the EOF condition. This is
useful with UDP and other datagram protocols. Has been tested against
netcat and socat with option link(null-eof)(OPTION_NULL_EOF).
label(OPTION_NULL_EOF)dit(bf(tt(null-eof)))
Normally socat() will ignore empty (zero size payload) packets arriving on
datagram sockets, so it survives port scans. With this option socat()
interprets empty datagram packets as EOF indicator (see
link(shut-null)(OPTION_SHUT_NULL).
label(OPTION_IOCTL_VOID)dit(bf(tt(ioctl-void=<request>)))
Calls tt(ioctl()) with the request value as second argument and NULL as
third argument. This option allows to utilize ioctls that are not