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ip/ppp: update the test-program

--- a/sys/src/cmd/ip/ppp/testppp.c

+++ b/sys/src/cmd/ip/ppp/testppp.c

@@ -6,15 +6,17 @@

 long	errrate;

 long	droprate;

 int	framing;

+int	noauth;

 int	nocompress;

 int	noipcompress;

-char	*ppp = "8.out";

+int	proxy;

+char	*ppp = "6.out";

 char	*mtu;

 void

 pppopen(int fd, char *net, char *local, char *remote)

 {

-	char *argv[16];

+	char *argv[32];

 	int argc;

 	switch(fork()){

@@ -29,11 +31,19 @@

 	dup(fd, 0);

 	dup(fd, 1);

-

 	argc = 0;

 	argv[argc++] = ppp;

 	if(debug)

 		argv[argc++] = "-d";

+	if(local){

+		/* server */

+		argv[argc++] = "-S";

+		if(noauth)

+			argv[argc++] = "-a";

+	} else {

+		/* client */

+		argv[argc++] = "-P";

+	}

 	if(framing)

 		argv[argc++] = "-f";

 	if(nocompress)

@@ -46,12 +56,15 @@

 	}

 	argv[argc++] = "-x";

 	argv[argc++] = net;

+	if(proxy){

+		argv[argc++] = "-y";

+	}

 	if(local){

 		argv[argc++] = local;

 		if(remote)

 			argv[argc++] = remote;

 	}

-	argv[argc] = 0;

+	argv[argc] = nil;

 	exec(ppp, argv);

 }

@@ -129,7 +142,7 @@

 void

 usage(void)

 {

-	fprint(2, "usage: testppp [-cCDf] [-e errrate] [-d droprate] [-m mtu] [-p ppp]\n");

+	fprint(2, "usage: testppp [-cCDf] [-e errrate] [-d droprate] [-m mtu] [-p ppp] local remote\n");

 	exits("usage");

 }

@@ -143,6 +156,9 @@

 	errrate = 0;

 	droprate = 0;

 	ARGBEGIN{

+	case 'a':

+		noauth = 1;

+		break;

 	case 'c':

 		nocompress = 1;

 		break;

@@ -173,19 +189,21 @@

 		if(ppp == nil)

 			usage();

 		break;

+	case 'y':

+		proxy = 1;

+		break;

 	default:

 		usage();

 		break;

 	}ARGEND

-	if(argc)

+

+	if(argc != 2)

 		usage();

 	pipe(pfd1);

 	pipe(pfd2);

-	bind("#I2", "/net.alt2", MCREATE);

-	bind("#I1", "/net.alt", MCREATE);

-	pppopen(pfd1[0], "/net.alt2", "135.104.99.1", "135.104.99.2");

+	pppopen(pfd1[0], "/net", argv[0], argv[1]);

 	pppopen(pfd2[0], "/net.alt", 0, 0);

 	close(pfd1[0]);