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Added options setsockopt-socket and setsockopt-connected

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Gerhard 2025-02-13 11:25:09 +01:00
parent e6aa3d1787
commit c8aec28b82
6 changed files with 19 additions and 0 deletions

3
CHANGES
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@ -110,6 +110,9 @@ Features:
Socat now prints an info message when implicitely setting SO_REUSEADDR.
Thanks to Michael Renner for this suggestion.
Added generic options setsockopt-socket and setsockopt-connected that
are applied after socket() or when connected.
Building:
Disabling certain features during configure could break build process.

6
doc/socat.yo
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@ -2408,6 +2408,12 @@ label(OPTION_SETSOCKOPT_STRING)dit(bf(tt(setsockopt-string=<level>:<optname>:<op
Like tt(setsockopt), but <optval> is a link(string)(TYPE_STRING).
This string is passed to the function with trailing null character, and the
length parameter is automatically derived from the data.
label(OPTION_SETSOCKOPT_SOCKET)dit(bf(tt(setsockopt-socket=<level>:<optname>:<optval>)))
Like tt(setsockopt), but is applied to the socket before other operations
(code(bind()), code(connect()), code(accept()), ...)
label(OPTION_SETSOCKOPT_CONNECTED)dit(bf(tt(setsockopt-connected=<level>:<optname>:<optval>)))
Like tt(setsockopt), but is applied only when the socket has been connected
by a code(connect()) or code(listen()) call.
enddit()
startdit()enddit()nl()

2
xio-socket.c
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@ -191,6 +191,8 @@ const struct optdesc opt_setsockopt_int = { "setsockopt-int", "sockopt-int
const struct optdesc opt_setsockopt_bin = { "setsockopt-bin", "sockopt-bin", OPT_SETSOCKOPT_BIN, GROUP_SOCKET,PH_CONNECTED, TYPE_INT_INT_BIN, OFUNC_SOCKOPT_GENERIC, 0, 0 };
const struct optdesc opt_setsockopt_string = { "setsockopt-string", "sockopt-string", OPT_SETSOCKOPT_STRING, GROUP_SOCKET,PH_CONNECTED, TYPE_INT_INT_STRING, OFUNC_SOCKOPT_GENERIC, 0, 0 };
const struct optdesc opt_setsockopt_listen = { "setsockopt-listen", "sockopt-listen", OPT_SETSOCKOPT_LISTEN, GROUP_SOCKET,PH_PREBIND, TYPE_INT_INT_BIN, OFUNC_SOCKOPT_GENERIC, 0, 0 };
const struct optdesc opt_setsockopt_socket = { "setsockopt-socket", "sockopt-sock", OPT_SETSOCKOPT_SOCKET, GROUP_SOCKET,PH_PASTSOCKET, TYPE_INT_INT_BIN, OFUNC_SOCKOPT_GENERIC, 0, 0 };
const struct optdesc opt_setsockopt_connected = { "setsockopt-connected", "sockopt-conn", OPT_SETSOCKOPT_CONNECTED, GROUP_SOCKET,PH_CONNECTED, TYPE_INT_INT_BIN, OFUNC_SOCKOPT_GENERIC, 0, 0 };
const struct optdesc opt_null_eof = { "null-eof", NULL, OPT_NULL_EOF, GROUP_SOCKET, PH_OFFSET, TYPE_BOOL, OFUNC_OFFSET, XIO_OFFSETOF(para.socket.null_eof) };

2
xio-socket.h
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@ -83,6 +83,8 @@ extern const struct optdesc opt_setsockopt_bin;
extern const struct optdesc opt_setsockopt_string;
extern const struct optdesc opt_setsockopt_listen;
extern const struct optdesc opt_null_eof;
extern const struct optdesc opt_setsockopt_socket;
extern const struct optdesc opt_setsockopt_connected;
extern

4
xioopts.c
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@ -1583,8 +1583,10 @@ const struct optname optionnames[] = {
#endif
IF_SOCKET ("setsockopt", &opt_setsockopt)
IF_SOCKET ("setsockopt-bin", &opt_setsockopt_bin)
IF_SOCKET ("setsockopt-connected", &opt_setsockopt_connected)
IF_SOCKET ("setsockopt-int", &opt_setsockopt_int)
IF_SOCKET ("setsockopt-listen", &opt_setsockopt_listen)
IF_SOCKET ("setsockopt-socket", &opt_setsockopt_socket)
IF_SOCKET ("setsockopt-string", &opt_setsockopt_string)
IF_ANY ("setuid", &opt_setuid)
IF_ANY ("setuid-early", &opt_setuid_early)
@ -1719,8 +1721,10 @@ const struct optname optionnames[] = {
#endif /* SO_USELOOPBACK */
IF_SOCKET ("sockopt", &opt_setsockopt)
IF_SOCKET ("sockopt-bin", &opt_setsockopt_bin)
IF_SOCKET ("sockopt-conn", &opt_setsockopt_connected)
IF_SOCKET ("sockopt-int", &opt_setsockopt_int)
IF_SOCKET ("sockopt-listen", &opt_setsockopt_listen)
IF_SOCKET ("sockopt-sock", &opt_setsockopt_socket)
IF_SOCKET ("sockopt-string", &opt_setsockopt_string)
IF_SOCKS4 ("socksport", &opt_socksport)
IF_SOCKS4 ("socksuser", &opt_socksuser)

2
xioopts.h
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@ -663,8 +663,10 @@ enum e_optcode {
OPT_SETPGID,
OPT_SETSID,
OPT_SETSOCKOPT_BIN,
OPT_SETSOCKOPT_CONNECTED,
OPT_SETSOCKOPT_INT,
OPT_SETSOCKOPT_LISTEN,
OPT_SETSOCKOPT_SOCKET,
OPT_SETSOCKOPT_STRING,
OPT_SETUID,
OPT_SETUID_EARLY,