Make it more convenient to query NICs other than InterNIC. Explain in the

man page what each database contains.

usr.bin/whois/whois.1

@@ -29,28 +29,54 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     @(#)whois.1	8.1 (Berkeley) 6/6/93
+.\"     From: @(#)whois.1	8.1 (Berkeley) 6/6/93
+.\"	$Id$
 .\"
-.Dd June 6, 1993
+.Dd February 19, 1998
 .Dt WHOIS 1
 .Os BSD 4.3
 .Sh NAME
 .Nm whois
-.Nd Internet user name directory service
+.Nd Internet domain name and network number directory service
 .Sh SYNOPSIS
 .Nm whois
-.Op Fl h Ar hostname
+.Op Fl adpr
+.Op Fl h Ar host
 .Ar name ...
 .Sh DESCRIPTION
 .Nm Whois
-looks up records in the Network Information Center
+looks up records in the databases maintained by several
-.Pq Tn NIC
+Network Information Centers
-database.
+.Pq Tn NICs .
 .Pp
 The options are as follows:
 .Bl -tag -width Ds
-.It Fl h
+.It Fl a
-Use the specified host instead of the default NIC (whois.internic.net).
+Use the American Registry for Internet Numbers
+.Pq Tn ARIN
+database.  It contains network numbers used in those parts of the world
+covered neither by
+.Tn APNIC nor by
+.Tn RIPE .
+.It Fl d
+Use the (US Military) Defense Data Network
+.Pq Tn DDN
+database.  It contains points of contact for subdomains of
+.Tn \&.MIL .
+.It Fl h Ar host
+Use the specified host instead of the default NIC
+(whois.internic.net).
+Either a host name or an IP address may be specified.
+.It Fl p
+Use the Asia/Pacific Network Information Center
+.Pq Tn APNIC
+database.  It contains network numbers used in East Asia, Australia,
+New Zealand, and the Pacific islands.
+.It Fl r
+Use the R\(aaeseaux IP Europ\(aaeens
+.Pq Tn RIPE
+database.  It contains network numbers and domain contact information
+for Europe.
 .El
 .Pp
 The operands specified to

usr.bin/whois/whois.c

@@ -42,7 +42,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)whois.c	8.1 (Berkeley) 6/6/93";
 #endif
 static const char rcsid[] =
-	"$Id$";
+	"$Id: whois.c,v 1.4 1997/08/26 11:16:08 charnier Exp $";
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -52,9 +52,15 @@ static const char rcsid[] =
 #include <netdb.h>
 #include <stdio.h>
 #include <string.h>
+#include <sysexits.h>
 #include <unistd.h>
 
-#define	NICHOST	"whois.internic.net"
+#define	NICHOST		"whois.internic.net"
+#define	DNICHOST	"nic.ddn.mil"
+#define	ANICHOST	"whois.arin.net"
+#define	RNICHOST	"whois.ripe.net"
+#define	PNICHOST	"whois.apnic.net"
+#define	WHOIS_PORT	43
 
 static void usage __P((void));
 
@@ -76,11 +82,23 @@ main(argc, argv)
 #endif
 
 	host = NICHOST;
-	while ((ch = getopt(argc, argv, "h:")) != -1)
+	while ((ch = getopt(argc, argv, "adh:pr")) != -1)
 		switch((char)ch) {
+		case 'a':
+			host = ANICHOST;
+			break;
+		case 'd':
+			host = DNICHOST;
+			break;
 		case 'h':
 			host = optarg;
 			break;
+		case 'p':
+			host = PNICHOST;
+			break;
+		case 'r':
+			host = RNICHOST;
+			break;
 		case '?':
 		default:
 			usage();
@@ -91,32 +109,35 @@ main(argc, argv)
 	if (!argc)
 		usage();
 
-	hp = gethostbyname(host);
+	s = socket(PF_INET, SOCK_STREAM, 0);
-	if (hp == NULL) {
-		(void)fprintf(stderr, "whois: %s: ", host);
-		herror((char *)NULL);
-		exit(1);
-	}
-	host = hp->h_name;
-	s = socket(hp->h_addrtype, SOCK_STREAM, 0);
 	if (s < 0)
-		err(1, "socket");
+		err(EX_OSERR, "socket");
-	bzero((caddr_t)&sin, sizeof (sin));
+
-	sin.sin_family = hp->h_addrtype;
+	memset(&sin, 0, sizeof sin);
-	bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length);
+	sin.sin_len = sizeof sin;
+	sin.sin_family = AF_INET;
+	
+	if (inet_aton(host, &sin.sin_addr) == 0) {
+		hp = gethostbyname2(host, AF_INET);
+		if (hp == NULL)
+			errx(EX_NOHOST, "%s: %s", host, hstrerror(h_errno));
+		host = hp->h_name;
+		sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
+	}
+
 	sp = getservbyname("whois", "tcp");
 	if (sp == NULL)
-		errx(1, "whois/tcp: unknown service");
+		sin.sin_port = htons(WHOIS_PORT);
-	sin.sin_port = sp->s_port;
+	else
+		sin.sin_port = sp->s_port;
+
 	if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0)
-		err(1, "connect");
+		err(EX_OSERR, "connect");
+
 	sfi = fdopen(s, "r");
 	sfo = fdopen(s, "w");
-	if (sfi == NULL || sfo == NULL) {
+	if (sfi == NULL || sfo == NULL)
-		warn("fdopen");
+		err(EX_OSERR, "fdopen");
-		(void)close(s);
-		exit(1);
-	}
 	while (argc-- > 1)
 		(void)fprintf(sfo, "%s ", *argv++);
 	(void)fprintf(sfo, "%s\r\n", *argv);
@@ -129,6 +150,6 @@ main(argc, argv)
 static void
 usage()
 {
-	(void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
+	(void)fprintf(stderr, "usage: whois [-adpr] [-h hostname] name ...\n");
-	exit(1);
+	exit(EX_USAGE);
 }