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17253: ztcp -L gives parseable information on tcp session

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Peter Stephenson 2002-05-30 15:16:18 +00:00
parent 4446df3dff
commit 69b570e28c
3 changed files with 78 additions and 10 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2002-05-30 Peter Stephenson <pws@csr.com>
* 17253: Src/Modules/tcp.c, Doc/Zsh/mod_tcp.c: ztcp -l provides
parseable information on sessions.
2002-05-29 Sven Wischnowsky <wischnow@zsh.org>
* 17252: Completion/Unix/Type/_path_files: fix for use of (z)

50
Doc/Zsh/mod_tcp.yo
View file

@ -7,12 +7,60 @@ startitem()
findex(ztcp)
cindex(TCP)
cindex(sockets, TCP)
item(tt(ztcp) [ tt(-acdfltv) ] [ var(args) ])(
item(tt(ztcp) [ tt(-acdflLtv) ] [ var(args) ])(
tt(ztcp) is implemented as a builtin to allow full use of shell
command line editing, file I/O, and job control mechanisms.
If tt(ztcp) is run with no options, it will output
the contents of its session table.
If it is run with only the option tt(-L), it will output the contents of
the session table in a format suitable for automatic parsing. The option
is ignored if given with a command to open or close a session. The output
consists of a set of lines, one per session, each containing the following
elements separated by spaces:
startitem()
item(File descriptor)(
The file descriptor in use for the connection. For normal inbound (tt(I))
and outbound (tt(O)) connections this may be read and written by the usual
shell mechanisms. However, it should only be close with `tt(ztcp -c)'.
)
item(Connection type)(
A letter indicating how the session was created:
startitem()
item(tt(Z))(
A session created with the tt(zftp) command.
)
item(tt(L))(
A connection opened for listening with `tt(ztcp -l)'.
)
item(tt(I))(
An inbound connection accepted with `tt(ztcp -a)'.
)
item(tt(O))(
An outbound connection created with `tt(ztcp) var(host) var(...)'.
)
enditem()
)
item(The local host)(
This is usually set to an all-zero IP address as the address of the
localhost is irrelevant.
)
item(The local port)(
This is likely to be zero unless the connection is for listening.
)
item(The remote host)(
This is the fully qualified domain name of the peer, if available, else an
IP address. It is an all-zero IP adress for a session opened for
listening.
)
item(The remote port)(
This is zero for a connection opened for listening.
)
enditem()
)
enditem()

33
Src/Modules/tcp.c
View file

@ -369,7 +369,6 @@ bin_ztcp(char *nam, char **args, char *ops, int func)
dargs = args;
if (ops['c']) {
if (!dargs[0]) {
tcp_cleanup();
@ -575,13 +574,29 @@ bin_ztcp(char *nam, char **args, char *ops, int func)
remotename = ztpeer->h_name;
else
remotename = ztrdup(inet_ntoa(sess->peer.in.sin_addr));
printf("%s:%d %s %s:%d is on fd %d%s\n",
localname, ntohs(sess->sock.in.sin_port),
((sess->flags & ZTCP_LISTEN) ? "-<" :
((sess->flags & ZTCP_INBOUND) ? "<-" : "->")),
remotename, ntohs(sess->peer.in.sin_port),
sess->fd,
(sess->flags & ZTCP_ZFTP) ? " ZFTP" : "");
if (ops['L']) {
int schar;
if (sess->flags & ZTCP_ZFTP)
schar = 'Z';
else if (sess->flags & ZTCP_LISTEN)
schar = 'L';
else if (sess->flags & ZTCP_INBOUND)
schar = 'I';
else
schar = 'O';
printf("%d %c %s %d %s %d\n",
sess->fd, schar,
localname, ntohs(sess->sock.in.sin_port),
remotename, ntohs(sess->peer.in.sin_port));
} else {
printf("%s:%d %s %s:%d is on fd %d%s\n",
localname, ntohs(sess->sock.in.sin_port),
((sess->flags & ZTCP_LISTEN) ? "-<" :
((sess->flags & ZTCP_INBOUND) ? "<-" : "->")),
remotename, ntohs(sess->peer.in.sin_port),
sess->fd,
(sess->flags & ZTCP_ZFTP) ? " ZFTP" : "");
}
}
}
return 0;
@ -660,7 +675,7 @@ bin_ztcp(char *nam, char **args, char *ops, int func)
}
static struct builtin bintab[] = {
BUILTIN("ztcp", 0, bin_ztcp, 0, 3, 0, "acdfltv", NULL),
BUILTIN("ztcp", 0, bin_ztcp, 0, 3, 0, "acdflLtv", NULL),
};
/* The load/unload routines required by the zsh library interface */