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https://github.com/freebsd/freebsd-src
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Use err(3).
This commit is contained in:
parent
0abcff762c
commit
741d304e2d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28792
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@ -54,10 +54,10 @@ Use the specified host instead of the default NIC (whois.internic.net).
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.El
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.Pp
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The operands specified to
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.Nm whois
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.Nm
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are concatenated together (separated by white-space) and presented to
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the
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.Nm whois
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.Nm
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server.
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.Pp
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The default action, unless directed otherwise with a special
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@ -75,6 +75,6 @@ the special name
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RFC 812: Nicname/Whois
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.Sh HISTORY
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The
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.Nm whois
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.Nm
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command appeared in
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.Bx 4.3 .
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@ -32,29 +32,37 @@
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*/
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#ifndef lint
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static char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <err.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#define NICHOST "whois.internic.net"
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static void usage __P((void));
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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extern char *optarg;
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extern int optind;
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register FILE *sfi, *sfo;
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register int ch;
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struct sockaddr_in sin;
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@ -91,27 +99,21 @@ main(argc, argv)
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}
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host = hp->h_name;
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s = socket(hp->h_addrtype, SOCK_STREAM, 0);
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if (s < 0) {
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perror("whois: socket");
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exit(1);
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}
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if (s < 0)
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err(1, "socket");
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bzero((caddr_t)&sin, sizeof (sin));
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sin.sin_family = hp->h_addrtype;
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bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length);
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sp = getservbyname("whois", "tcp");
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if (sp == NULL) {
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(void)fprintf(stderr, "whois: whois/tcp: unknown service\n");
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exit(1);
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}
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if (sp == NULL)
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errx(1, "whois/tcp: unknown service");
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sin.sin_port = sp->s_port;
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if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
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perror("whois: connect");
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exit(1);
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}
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if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0)
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err(1, "connect");
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sfi = fdopen(s, "r");
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sfo = fdopen(s, "w");
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if (sfi == NULL || sfo == NULL) {
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perror("whois: fdopen");
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warn("fdopen");
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(void)close(s);
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exit(1);
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}
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@ -124,6 +126,7 @@ main(argc, argv)
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exit(0);
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}
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static void
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usage()
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{
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(void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
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