1*11be35a1SLionel Sambuc /* $NetBSD: h_servent.c,v 1.2 2011/04/07 18:14:09 jruoho Exp $ */
2*11be35a1SLionel Sambuc
3*11be35a1SLionel Sambuc /*-
4*11be35a1SLionel Sambuc * Copyright (c) 2011 The NetBSD Foundation, Inc.
5*11be35a1SLionel Sambuc * All rights reserved.
6*11be35a1SLionel Sambuc *
7*11be35a1SLionel Sambuc * Redistribution and use in source and binary forms, with or without
8*11be35a1SLionel Sambuc * modification, are permitted provided that the following conditions
9*11be35a1SLionel Sambuc * are met:
10*11be35a1SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
11*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer.
12*11be35a1SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
13*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
14*11be35a1SLionel Sambuc * documentation and/or other materials provided with the distribution.
15*11be35a1SLionel Sambuc *
16*11be35a1SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17*11be35a1SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18*11be35a1SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19*11be35a1SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20*11be35a1SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21*11be35a1SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22*11be35a1SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23*11be35a1SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24*11be35a1SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25*11be35a1SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26*11be35a1SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
27*11be35a1SLionel Sambuc */
28*11be35a1SLionel Sambuc
29*11be35a1SLionel Sambuc #include <netdb.h>
30*11be35a1SLionel Sambuc #include <stdint.h>
31*11be35a1SLionel Sambuc #include <stdlib.h>
32*11be35a1SLionel Sambuc #include <unistd.h>
33*11be35a1SLionel Sambuc #include <netinet/in.h>
34*11be35a1SLionel Sambuc #include <sys/types.h>
35*11be35a1SLionel Sambuc #include <stdio.h>
36*11be35a1SLionel Sambuc
37*11be35a1SLionel Sambuc static void
pserv(const struct servent * svp)38*11be35a1SLionel Sambuc pserv(const struct servent *svp)
39*11be35a1SLionel Sambuc {
40*11be35a1SLionel Sambuc char **pp;
41*11be35a1SLionel Sambuc
42*11be35a1SLionel Sambuc printf("name=%s, port=%d, proto=%s, aliases=",
43*11be35a1SLionel Sambuc svp->s_name, ntohs((uint16_t)svp->s_port), svp->s_proto);
44*11be35a1SLionel Sambuc for (pp = svp->s_aliases; *pp; pp++)
45*11be35a1SLionel Sambuc printf("%s ", *pp);
46*11be35a1SLionel Sambuc printf("\n");
47*11be35a1SLionel Sambuc }
48*11be35a1SLionel Sambuc
49*11be35a1SLionel Sambuc static void
usage(void)50*11be35a1SLionel Sambuc usage(void)
51*11be35a1SLionel Sambuc {
52*11be35a1SLionel Sambuc (void)fprintf(stderr, "Usage: %s\n"
53*11be35a1SLionel Sambuc "\t%s -p <port> [-P <proto>]\n"
54*11be35a1SLionel Sambuc "\t%s -n <name> [-P <proto>]\n", getprogname(), getprogname(),
55*11be35a1SLionel Sambuc getprogname());
56*11be35a1SLionel Sambuc exit(1);
57*11be35a1SLionel Sambuc }
58*11be35a1SLionel Sambuc
59*11be35a1SLionel Sambuc int
main(int argc,char * argv[])60*11be35a1SLionel Sambuc main(int argc, char *argv[])
61*11be35a1SLionel Sambuc {
62*11be35a1SLionel Sambuc struct servent *svp;
63*11be35a1SLionel Sambuc const char *port = NULL, *proto = NULL, *name = NULL;
64*11be35a1SLionel Sambuc int c;
65*11be35a1SLionel Sambuc
66*11be35a1SLionel Sambuc while ((c = getopt(argc, argv, "p:n:P:")) != -1) {
67*11be35a1SLionel Sambuc switch (c) {
68*11be35a1SLionel Sambuc case 'n':
69*11be35a1SLionel Sambuc name = optarg;
70*11be35a1SLionel Sambuc break;
71*11be35a1SLionel Sambuc case 'p':
72*11be35a1SLionel Sambuc port = optarg;
73*11be35a1SLionel Sambuc break;
74*11be35a1SLionel Sambuc case 'P':
75*11be35a1SLionel Sambuc proto = optarg;
76*11be35a1SLionel Sambuc break;
77*11be35a1SLionel Sambuc default:
78*11be35a1SLionel Sambuc usage();
79*11be35a1SLionel Sambuc }
80*11be35a1SLionel Sambuc }
81*11be35a1SLionel Sambuc
82*11be35a1SLionel Sambuc if (port && name)
83*11be35a1SLionel Sambuc usage();
84*11be35a1SLionel Sambuc if (port) {
85*11be35a1SLionel Sambuc if ((svp = getservbyport(htons(atoi(port)), proto)) != NULL)
86*11be35a1SLionel Sambuc pserv(svp);
87*11be35a1SLionel Sambuc return 0;
88*11be35a1SLionel Sambuc }
89*11be35a1SLionel Sambuc if (name) {
90*11be35a1SLionel Sambuc if ((svp = getservbyname(name, proto)) != NULL)
91*11be35a1SLionel Sambuc pserv(svp);
92*11be35a1SLionel Sambuc return 0;
93*11be35a1SLionel Sambuc }
94*11be35a1SLionel Sambuc
95*11be35a1SLionel Sambuc setservent(0);
96*11be35a1SLionel Sambuc while ((svp = getservent()) != NULL)
97*11be35a1SLionel Sambuc pserv(svp);
98*11be35a1SLionel Sambuc endservent();
99*11be35a1SLionel Sambuc return 0;
100*11be35a1SLionel Sambuc }
101