tests/lib/libc/net/h_protoent.c

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