usr/src/cmd/getent/dogetproto.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 #ident  "%Z%%M% %I%     %E% SMI"
  23
  24 /*
  25  * Copyright (c) 1994, by Sun Microsystems, Inc.
  26  */
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <sys/types.h>
  31 #include <sys/socket.h>
  32 #include <netinet/in.h>
  33 #include <netdb.h>
  34 #include "getent.h"
  35
  36 static int
  37 putprotoent(const struct protoent *pp, FILE *fp)
  38 {
  39         char **p;
  40         int rc = 0;
  41
  42         if (pp == NULL) {
  43                 return (1);
  44         }
  45
  46         if (fprintf(fp, "%-20s %d",
  47                     pp->p_name, pp->p_proto) == EOF)
  48                 rc = 1;
  49         for (p = pp->p_aliases; *p != 0; p++) {
  50                 if (fprintf(fp, " %s", *p) == EOF)
  51                         rc = 1;
  52         }
  53         if (putc('\n', fp) == EOF)
  54                 rc = 1;
  55         return (rc);
  56 }
  57
  58 /*
  59  * getprotobyname/addr - get entries from protocols database
  60  */
  61 int
  62 dogetproto(const char **list)
  63 {
  64         struct protoent *pp;
  65         int rc = EXC_SUCCESS;
  66
  67         if (list == NULL || *list == NULL) {
  68                 while ((pp = getprotoent()) != NULL)
  69                         (void) putprotoent(pp, stdout);
  70         } else {
  71                 for (; *list != NULL; list++) {
  72                         int protocol = atoi(*list);
  73                         if (protocol != 0)
  74                                 pp = getprotobynumber(protocol);
  75                         else
  76                                 pp = getprotobyname(*list);
  77                         if (pp == NULL)
  78                                 rc = EXC_NAME_NOT_FOUND;
  79                         else
  80                                 (void) putprotoent(pp, stdout);
  81                 }
  82         }
  83
  84         return (rc);
  85 }