o Make telnet[d] -S (IP TOS) flag really work. We do not have

/etc/iptos implementation so only numeric values supported.

o telnetd.8: steal the -S flag description from telnet.1, bump
the date of the document.

MFC after:	6 weeks


git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@139937 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f

telnet/main.c

@@ -39,7 +39,7 @@ static const char sccsid[] = "@(#)main.c	8.3 (Berkeley) 5/30/95";
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
-#include <sys/types.h>
+#include <sys/param.h>
 #include <sys/socket.h>
 #include <stdlib.h>
 #include <string.h>
@@ -66,6 +66,8 @@ char *ipsec_policy_in = NULL;
 char *ipsec_policy_out = NULL;
 #endif
 
+extern int tos;
+
 int family = AF_UNSPEC;
 
 /*
@@ -115,8 +117,9 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
+	u_long ultmp;
 	int ch;
-	char *user;
+	char *ep, *user;
 	char *src_addr = NULL;
 #ifdef	FORWARD
 	extern int forward_flags;
@@ -181,9 +184,7 @@ main(int argc, char *argv[])
 			doaddrlookup = 0;
 			break;
 		case 'S':
-		    {
 #ifdef	HAS_GETTOS
-			extern int tos;
 
 			if ((tos = parsetos(optarg, "tcp")) < 0)
 				fprintf(stderr, "%s%s%s%s\n",
@@ -191,11 +192,16 @@ main(int argc, char *argv[])
 					optarg,
 					"; will try to use default TOS");
 #else
-			fprintf(stderr,
-			   "%s: Warning: -S ignored, no parsetos() support.\n",
-								prompt);
+#define	MAXTOS	255
+			ultmp = strtoul(optarg, &ep, 0);
+			if (*ep || ep == optarg || ultmp > MAXTOS)
+				fprintf(stderr, "%s%s%s%s\n",
+					prompt, ": Bad TOS argument '",
+					optarg,
+					"; will try to use default TOS");
+			else
+				tos = ultmp;
 #endif
-		    }
 			break;
 		case 'X':
 #ifdef	AUTHENTICATION

telnetd/telnetd.8

@@ -32,7 +32,7 @@
 .\"	@(#)telnetd.8	8.4 (Berkeley) 6/1/94
 .\" $FreeBSD$
 .\"
-.Dd January 5, 2005
+.Dd January 9, 2005
 .Dt TELNETD 8
 .Os
 .Sh NAME
@@ -251,6 +251,13 @@ Specify an alternate
 command to run to complete the login.  The alternate command must
 understand the same command arguments as the standard login.
 .It Fl S Ar tos
+Sets the IP type-of-service (TOS) option for the telnet
+connection to the value
+.Ar tos ,
+which can be a numeric TOS value or, on systems that support it, a symbolic
+TOS name found in the
+.Pa /etc/iptos
+file.
 .It Fl u Ar len
 This option is used to specify the size of the field
 in the

telnetd/telnetd.c

@@ -131,12 +131,14 @@ char user_name[256];
 int
 main(int argc, char *argv[])
 {
+	u_long ultmp;
 	struct sockaddr_storage from;
 	int on = 1, fromlen;
 	int ch;
 #if	defined(IPPROTO_IP) && defined(IP_TOS)
 	int tos = -1;
 #endif
+	char *ep;
 
 	pfrontp = pbackp = ptyobuf;
 	netip = netibuf;
@@ -273,7 +275,14 @@ main(int argc, char *argv[])
 					"bad TOS argument '", optarg,
 					"'; will try to use default TOS");
 #else
-			warnx("TOS option unavailable; -S flag not supported");
+#define	MAXTOS	255
+			ultmp = strtoul(optarg, &ep, 0);
+			if (*ep || ep == optarg || ultmp > MAXTOS)
+				warnx("%s%s%s",
+					"bad TOS argument '", optarg,
+					"'; will try to use default TOS");
+			else
+				tos = ultmp;
 #endif
 			break;