From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 11 Jun 2008 14:49:04 +0200
From: Enrico Weigelt <weigelt@metux.de>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Message-ID: <20080611124904.GA32143@nibiru.local>
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Subject: [9fans] [PATCH] p9p: 9pserve proxy support
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Hi folks,


here's a patch against p9p for an "proxy mode" in 9pserve, like Russ
suggested. It just adds an new "-c" option which tells 9pserve to
dial to an address as it's input connection (instead of taking stdio).

This way, 9pserve can eg. be used as a proxy between a unix socket
and TCP, making p9p servers available via TCP.

cu
--
----------------------------------------------------------------------
 Enrico Weigelt, metux IT service -- http://www.metux.de/

 cellphone: +49 174 7066481   email: info@metux.de   skype: nekrad666
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 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
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Index: src/cmd/9pserve.c
===================================================================
--- src/cmd/9pserve.c	(revision 707)
+++ src/cmd/9pserve.c	(working copy)
@@ -136,7 +136,7 @@
 void
 usage(void)
 {
-	fprint(2, "usage: 9pserve [-lnv] [-A aname afid] [-M msize] address\n");
+	fprint(2, "usage: 9pserve [-c pipe] [-lnv] [-A aname afid] [-M msize] address\n");
 	fprint(2, "\treads/writes 9P messages on stdin/stdout\n");
 	threadexitsall("usage");
 }
@@ -157,6 +157,19 @@
 	ARGBEGIN{
 	default:
 		usage();
+	case 'c':
+	{
+		char* pipename = EARGF(usage());
+		printf("pipename=\"%s\"\n", pipename);
+
+                if((fd = dial(pipename, nil, nil, nil)) < 0)
+            	    sysfatal("dial %s: %r");
+		dup(fd, 0);
+		dup(fd, 1);
+		if(fd > 1)
+		    close(fd);
+	}
+	break;
 	case 'A':
 		attached = 1;
 		xaname = EARGF(usage());

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