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1 /*
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2 * CDDL HEADER START
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3 *
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4 * The contents of this file are subject to the terms of the
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5 * Common Development and Distribution License, Version 1.0 only
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6 * (the "License"). You may not use this file except in compliance
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7 * with the License.
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8 *
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9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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10 * or http://www.opensolaris.org/os/licensing.
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11 * See the License for the specific language governing permissions
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12 * and limitations under the License.
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13 *
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14 * When distributing Covered Code, include this CDDL HEADER in each
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15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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16 * If applicable, add the following below this CDDL HEADER, with the
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17 * fields enclosed by brackets "[]" replaced with your own identifying
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18 * information: Portions Copyright [yyyy] [name of copyright owner]
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19 *
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20 * CDDL HEADER END
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21 */
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22 #ident "@(#)dogetipnodes.c 1.4 05/06/08 SMI"
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23
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24 /*
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25 * Copyright (c) 1994-1999, by Sun Microsystems, Inc.
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26 */
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27
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28 #include <stdio.h>
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29 #include <stdlib.h>
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30 #include <sys/types.h>
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31 #include <sys/socket.h>
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32 #include <netinet/in.h>
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33 #include <arpa/inet.h>
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34 #include <string.h>
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35 #include <netdb.h>
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36 #include "getent.h"
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37
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38 static int
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39 puthostent(const struct hostent *hp, FILE *fp)
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40 {
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41 char **p;
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42 int rc = 0;
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43 char obuf[INET6_ADDRSTRLEN];
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44
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45 if (hp == NULL) {
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46 return (1);
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47 }
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48
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49 for (p = hp->h_addr_list; *p != 0; p++) {
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50 void *addr;
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51 struct in_addr in4;
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52 int af;
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53 const char *res;
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54 char **q;
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55
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56 if (hp->h_addrtype == AF_INET6) {
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57 if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)*p)) {
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58 IN6_V4MAPPED_TO_INADDR((struct in6_addr *)*p,
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59 &in4);
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60 af = AF_INET;
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61 addr = &in4;
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62 } else {
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63 af = AF_INET6;
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64 addr = *p;
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65 }
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66 } else {
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67 af = AF_INET;
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68 addr = *p;
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69 }
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70 res = inet_ntop(af, addr, obuf, sizeof (obuf));
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71 if (res == 0) {
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72 rc = 1;
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73 continue;
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74 }
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75 if (fprintf(fp, "%s\t%s", res, hp->h_name) == EOF)
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76 rc = 1;
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77 for (q = hp->h_aliases; q && *q; q++) {
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78 if (fprintf(fp, " %s", *q) == EOF)
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79 rc = 1;
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80 }
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81 if (putc('\n', fp) == EOF)
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82 rc = 1;
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83 }
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84 return (rc);
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85 }
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86
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87 /*
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88 * getipnodebyname/addr - get entries from ipnodes database
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89 */
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90 int
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91 dogetipnodes(const char **list)
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92 {
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93 struct hostent *hp;
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94 int rc = EXC_SUCCESS;
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95 struct in6_addr in6;
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96 struct in_addr in4;
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97 int af, len;
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98 void *addr;
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99 int err_ret;
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100
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101 if (list == NULL || *list == NULL) {
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102 (void) fprintf(stdout,
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103 "Enumeration not supported on ipnodes\n");
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104 } else {
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105 for (; *list != NULL; list++) {
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106 if (strchr(*list, ':') != 0) {
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107 af = AF_INET6;
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108 len = sizeof (in6);
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109 addr = &in6;
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110 } else {
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111 af = AF_INET;
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112 len = sizeof (in4);
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113 addr = &in4;
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114 }
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115 if (inet_pton(af, *list, addr) == 1)
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116 hp = getipnodebyaddr(addr, len, af, &err_ret);
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117 else
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118 hp = getipnodebyname(
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119 *list,
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120 AF_INET6,
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121 AI_V4MAPPED|AI_ALL,
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122 &err_ret);
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123 if (hp == NULL)
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124 rc = EXC_NAME_NOT_FOUND;
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125 else
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126 (void) puthostent(hp, stdout);
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127 }
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128 }
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129
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130 return (rc);
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131 }
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