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annotate packages/net/snmp/lib/current/src/tools.c @ 103:95f3e12a6327 ecos-sw-2000-06-23

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Merge from eCos master repository on 2000-06-23-16:41:10-BST
author jlarmour
date Fri, 23 Jun 2000 17:06:31 +0000
parents
children e0c0827131d1
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1 //==========================================================================
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2 //
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3 // ./lib/current/src/tools.c
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4 //
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5 //
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6 //==========================================================================
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7 //####COPYRIGHTBEGIN####
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8 //
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9 // -------------------------------------------
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10 // The contents of this file are subject to the Red Hat eCos Public License
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11 // Version 1.1 (the "License"); you may not use this file except in
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12 // compliance with the License. You may obtain a copy of the License at
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13 // http://www.redhat.com/
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14 //
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15 // Software distributed under the License is distributed on an "AS IS"
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16 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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17 // License for the specific language governing rights and limitations under
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18 // the License.
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19 //
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20 // The Original Code is eCos - Embedded Configurable Operating System,
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21 // released September 30, 1998.
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22 //
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23 // The Initial Developer of the Original Code is Red Hat.
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24 // Portions created by Red Hat are
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25 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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26 // All Rights Reserved.
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27 // -------------------------------------------
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28 //
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29 //####COPYRIGHTEND####
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30 //####UCDSNMPCOPYRIGHTBEGIN####
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31 //
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32 // -------------------------------------------
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33 //
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34 // Portions of this software may have been derived from the UCD-SNMP
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35 // project, <http://ucd-snmp.ucdavis.edu/> from the University of
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36 // California at Davis, which was originally based on the Carnegie Mellon
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37 // University SNMP implementation. Portions of this software are therefore
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38 // covered by the appropriate copyright disclaimers included herein.
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39 //
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40 // The release used was version 4.1.2 of May 2000. "ucd-snmp-4.1.2"
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41 // -------------------------------------------
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42 //
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43 //####UCDSNMPCOPYRIGHTEND####
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44 //==========================================================================
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45 //#####DESCRIPTIONBEGIN####
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46 //
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47 // Author(s): hmt
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48 // Contributors: hmt
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49 // Date: 2000-05-30
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50 // Purpose: Port of UCD-SNMP distribution to eCos.
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51 // Description:
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52 //
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53 //
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54 //####DESCRIPTIONEND####
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55 //
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56 //==========================================================================
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57 /********************************************************************
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58 Copyright 1989, 1991, 1992 by Carnegie Mellon University
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59
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60 Derivative Work -
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61 Copyright 1996, 1998, 1999, 2000 The Regents of the University of California
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62
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63 All Rights Reserved
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64
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65 Permission to use, copy, modify and distribute this software and its
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66 documentation for any purpose and without fee is hereby granted,
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67 provided that the above copyright notice appears in all copies and
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68 that both that copyright notice and this permission notice appear in
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69 supporting documentation, and that the name of CMU and The Regents of
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70 the University of California not be used in advertising or publicity
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71 pertaining to distribution of the software without specific written
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72 permission.
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73
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74 CMU AND THE REGENTS OF THE UNIVERSITY OF CALIFORNIA DISCLAIM ALL
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75 WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
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76 WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL CMU OR
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77 THE REGENTS OF THE UNIVERSITY OF CALIFORNIA BE LIABLE FOR ANY SPECIAL,
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78 INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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79 FROM THE LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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80 CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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81 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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82 *********************************************************************/
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83 /*
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84 * tools.c
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85 */
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86
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87 #include <config.h>
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88
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89 #include <ctype.h>
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90 #include <stdio.h>
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91 #include <sys/types.h>
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92 #if TIME_WITH_SYS_TIME
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93 # ifdef WIN32
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94 # include <sys/timeb.h>
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95 # else
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96 # include <sys/time.h>
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97 # endif
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98 # include <time.h>
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99 #else
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100 # if HAVE_SYS_TIME_H
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101 # include <sys/time.h>
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102 # else
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103 # include <time.h>
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104 # endif
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105 #endif
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106 #ifdef HAVE_SYS_SOCKET_H
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107 #include <sys/socket.h>
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108 #endif
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109 #if HAVE_WINSOCK_H
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110 #include <winsock.h>
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111 #endif
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112 #ifdef HAVE_STDLIB_H
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113 #include <stdlib.h>
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114 #endif
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115 #if HAVE_STRING_H
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116 #include <string.h>
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117 #else
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118 #include <strings.h>
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119 #endif
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120 #ifdef HAVE_NETINET_IN_H
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121 #include <netinet/in.h>
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122 #endif
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123 #ifdef HAVE_ARPA_INET_H
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124 #include <arpa/inet.h>
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125 #endif
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126
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127 #if HAVE_DMALLOC_H
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128 #include <dmalloc.h>
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129 #endif
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130
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131 #include "asn1.h"
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132 #include "system.h"
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133 #include "snmp_api.h"
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134 #include "snmp_debug.h"
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135 #include "snmp_debug.h"
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136 #include "tools.h"
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137 #include "mib.h"
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138 #include "scapi.h"
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139
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140
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141 /*******************************************************************-o-******
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142 * free_zero
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143 *
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144 * Parameters:
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145 * *buf Pointer at bytes to free.
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146 * size Number of bytes in buf.
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147 */
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148 void
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149 free_zero(void *buf, size_t size)
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150 {
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151 if (buf) {
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152 memset(buf, 0, size);
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153 free(buf);
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154 }
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155
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156 } /* end free_zero() */
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157
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158
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159
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160
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161 /*******************************************************************-o-******
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162 * malloc_random
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163 *
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164 * Parameters:
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165 * size Number of bytes to malloc() and fill with random bytes.
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166 *
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167 * Returns pointer to allocaed & set buffer on success, size contains
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168 * number of random bytes filled.
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169 *
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170 * buf is NULL and *size set to KMT error value upon failure.
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171 *
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172 */
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173 u_char *
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174 malloc_random(size_t *size)
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175 {
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176 int rval = SNMPERR_SUCCESS;
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177 u_char *buf = (u_char *)calloc (1, *size);
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178
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179 if (buf) {
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180 rval = sc_random(buf, size);
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181
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182 if (rval < 0) {
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183 free_zero(buf, *size);
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184 buf = NULL;
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185 } else {
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186 *size = rval;
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187 }
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188 }
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189
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190 return buf;
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191
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192 } /* end malloc_random() */
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193
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194
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195
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196
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197 /*******************************************************************-o-******
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198 * memdup
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199 *
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200 * Parameters:
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201 * to Pointer to allocate and copy memory to.
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202 * from Pointer to copy memory from.
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203 * size Size of the data to be copied.
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204 *
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205 * Returns
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206 * SNMPERR_SUCCESS On success.
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207 * SNMPERR_GENERR On failure.
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208 */
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209 int
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210 memdup(u_char **to, const u_char *from, size_t size)
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211 {
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212 if (to == NULL)
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213 return SNMPERR_GENERR;
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214 if (from == NULL) {
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215 *to = NULL;
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216 return SNMPERR_SUCCESS;
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217 }
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218 if ((*to = (u_char *)malloc(size)) == NULL)
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219 return SNMPERR_GENERR;
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220 memcpy(*to, from, size);
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221 return SNMPERR_SUCCESS;
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222
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223 } /* end memdup() */
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224
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225
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226
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227
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228 /*******************************************************************-o-******
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229 * binary_to_hex
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230 *
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231 * Parameters:
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232 * *input Binary data.
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233 * len Length of binary data.
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234 * **output NULL terminated string equivalent in hex.
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235 *
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236 * Returns:
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237 * olen Length of output string not including NULL terminator.
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238 *
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239 * FIX Is there already one of these in the UCD SNMP codebase?
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240 * The old one should be used, or this one should be moved to
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241 * snmplib/snmp_api.c.
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242 */
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243 u_int
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244 binary_to_hex(const u_char *input, size_t len, char **output)
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245 {
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246 u_int olen = (len * 2) + 1;
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247 char *s = (char *) calloc(1,olen),
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248 *op = s;
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249 const u_char *ip = input;
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250
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251
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252 while (ip-input < (int)len) {
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253 *op++ = VAL2HEX( (*ip >> 4) & 0xf );
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254 *op++ = VAL2HEX( *ip & 0xf );
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255 ip++;
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256 }
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257 *op = '\0';
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258
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259 *output = s;
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260 return olen;
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261
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262 } /* end binary_to_hex() */
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263
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264
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265
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266
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267 /*******************************************************************-o-******
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268 * hex_to_binary2
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269 *
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270 * Parameters:
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271 * *input Printable data in base16.
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272 * len Length in bytes of data.
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273 * **output Binary data equivalent to input.
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274 *
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275 * Returns:
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276 * SNMPERR_GENERR Failure.
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277 * <len> Otherwise, Length of allocated string.
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278 *
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279 *
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280 * Input of an odd length is right aligned.
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281 *
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282 * FIX Another version of "hex-to-binary" which takes odd length input
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283 * strings. It also allocates the memory to hold the binary data.
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284 * Should be integrated with the official hex_to_binary() function.
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285 */
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286 int
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287 hex_to_binary2(const u_char *input, size_t len, char **output)
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288 {
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289 u_int olen = (len/2) + (len%2);
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290 char *s = (char *)calloc (1,olen),
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291 *op = s;
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292 const u_char *ip = input;
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293
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294
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295 *output = NULL;
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296 *op = 0;
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297 if (len%2) {
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298 if(!isxdigit(*ip)) goto hex_to_binary2_quit;
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299 *op++ = HEX2VAL( *ip ); ip++;
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300 }
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301
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302 while (ip-input < (int)len) {
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303 if(!isxdigit(*ip)) goto hex_to_binary2_quit;
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304 *op = HEX2VAL( *ip ) << 4; ip++;
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305
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306 if(!isxdigit(*ip)) goto hex_to_binary2_quit;
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307 *op++ += HEX2VAL( *ip ); ip++;
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308 }
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309
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310 *output = s;
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311 return olen;
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312
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313 hex_to_binary2_quit:
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314 free_zero(s, olen);
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315 return -1;
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316
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317 } /* end hex_to_binary2() */
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318
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319
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320
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321
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322 /*******************************************************************-o-******
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323 * dump_chunk
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324 *
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325 * Parameters:
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326 * *title (May be NULL.)
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327 * *buf
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328 * size
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329 */
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330 void
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331 dump_chunk(const char *debugtoken, const char *title, const u_char *buf, int size)
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332 {
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333 u_int printunit = 64; /* XXX Make global. */
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334 char chunk[SNMP_MAXBUF],
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335 *s, *sp;
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336
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337 if ( title && (*title != '\0') ) {
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338 DEBUGMSGTL((debugtoken, "%s\n", title));
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339 }
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340
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341
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342 memset(chunk, 0, SNMP_MAXBUF);
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343 size = binary_to_hex(buf, size, &s);
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344 sp = s;
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345
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346 while (size > 0)
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347 {
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348 if (size > (int)printunit) {
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349 strncpy(chunk, sp, printunit);
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350 chunk[printunit] = '\0';
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351 DEBUGMSGTL((debugtoken, "\t%s\n", chunk));
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352 } else {
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353 DEBUGMSGTL((debugtoken, "\t%s\n", sp));
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354 }
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355
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356 sp += printunit;
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357 size -= printunit;
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358 }
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359
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360
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361 SNMP_FREE(s);
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362
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363 } /* end dump_chunk() */
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364
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365
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366
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367
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368 /*******************************************************************-o-******
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369 * dump_snmpEngineID
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370 *
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371 * Parameters:
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372 * *estring
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373 * *estring_len
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diff changeset
374 *
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diff changeset
375 * Returns:
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diff changeset
376 * Allocated memory pointing to a string of buflen char representing
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diff changeset
377 * a printf'able form of the snmpEngineID.
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diff changeset
378 *
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379 * -OR- NULL on error.
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diff changeset
380 *
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diff changeset
381 *
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382 * Translates the snmpEngineID TC into a printable string. From RFC 2271,
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diff changeset
383 * Section 5 (pp. 36-37):
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diff changeset
384 *
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diff changeset
385 * First bit: 0 Bit string structured by means non-SNMPv3.
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diff changeset
386 * 1 Structure described by SNMPv3 SnmpEngineID TC.
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diff changeset
387 *
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diff changeset
388 * Bytes 1-4: Enterprise ID. (High bit of first byte is ignored.)
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diff changeset
389 *
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diff changeset
390 * Byte 5: 0 (RESERVED by IANA.)
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diff changeset
391 * 1 IPv4 address. ( 4 octets)
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diff changeset
392 * 2 IPv6 address. ( 16 octets)
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diff changeset
393 * 3 MAC address. ( 6 octets)
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diff changeset
394 * 4 Locally defined text. (0-27 octets)
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diff changeset
395 * 5 Locally defined octets. (0-27 octets)
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diff changeset
396 * 6-127 (RESERVED for enterprise.)
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diff changeset
397 *
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diff changeset
398 * Bytes 6-32: (Determined by byte 5.)
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diff changeset
399 *
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diff changeset
400 *
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diff changeset
401 * Non-printable characters are given in hex. Text is given in quotes.
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402 * IP and MAC addresses are given in standard (UN*X) conventions. Sections
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diff changeset
403 * are comma separated.
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diff changeset
404 *
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405 * esp, remaining_len and s trace the state of the constructed buffer.
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406 * s will be defined if there is something to return, and it will point
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diff changeset
407 * to the end of the constructed buffer.
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diff changeset
408 *
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diff changeset
409 *
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diff changeset
410 * ASSUME "Text" means printable characters.
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diff changeset
411 *
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diff changeset
412 * XXX Must the snmpEngineID always have a minimum length of 12?
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413 * (Cf. part 2 of the TC definition.)
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diff changeset
414 * XXX Does not enforce upper-bound of 32 bytes.
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diff changeset
415 * XXX Need a switch to decide whether to use DNS name instead of a simple
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diff changeset
416 * IP address.
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jlarmour
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diff changeset
417 *
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diff changeset
418 * FIX Use something other than sprint_hexstring which doesn't add
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419 * trailing spaces and (sometimes embedded) newlines...
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420 */
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diff changeset
421 #ifdef SNMP_TESTING_CODE
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diff changeset
422 char *
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423 dump_snmpEngineID(const u_char *estring, size_t *estring_len)
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424 {
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diff changeset
425 #define eb(b) ( *(esp+b) & 0xff )
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426
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diff changeset
427 int rval = SNMPERR_SUCCESS,
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428 gotviolation = 0,
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429 slen = 0;
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430 u_int remaining_len;
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diff changeset
431
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432 char buf[SNMP_MAXBUF],
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diff changeset
433 *s = NULL,
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434 *t;
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435 const u_char *esp = estring;
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diff changeset
436
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diff changeset
437 struct in_addr iaddr;
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diff changeset
438
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parents:
diff changeset
439
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
440
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
441 /*
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
442 * Sanity check.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
443 */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
444 if ( !estring || (*estring_len <= 0) ) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
445 QUITFUN(SNMPERR_GENERR, dump_snmpEngineID_quit);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
446 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
447 remaining_len = *estring_len;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
448 memset(buf, 0, SNMP_MAXBUF);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
449
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
450
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
451
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
452 /*
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
453 * Test first bit. Return immediately with a hex string, or
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
454 * begin by formatting the enterprise ID.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
455 */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
456 if ( !(*esp & 0x80) ) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
457 sprint_hexstring(buf, esp, remaining_len);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
458 s = strchr(buf, '\0');
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
459 s -= 1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
460 goto dump_snmpEngineID_quit;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
461 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
462
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
463 s = buf;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
464 s += sprintf(s, "enterprise %d, ", ((*(esp+0)&0x7f) << 24) |
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
465 ((*(esp+1)&0xff) << 16) |
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
466 ((*(esp+2)&0xff) << 8) |
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
467 ((*(esp+3)&0xff)) );
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
468 /* XXX Ick. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
469
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
470 if (remaining_len < 5) { /* XXX Violating string. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
471 goto dump_snmpEngineID_quit;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
472 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
473
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
474 esp += 4; /* Incremented one more in the switch below. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
475 remaining_len -= 5;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
476
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
477
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
478
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
479 /*
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
480 * Act on the fifth byte.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
481 */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
482 switch ((int) *esp++) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
483 case 1: /* IPv4 address. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
484
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
485 if (remaining_len < 4) goto dump_snmpEngineID_violation;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
486 memcpy(&iaddr.s_addr, esp, 4);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
487
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
488 if ( !(t = inet_ntoa(iaddr)) ) goto dump_snmpEngineID_violation;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
489 s += sprintf(s, "%s", t);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
490
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
491 esp += 4;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
492 remaining_len -= 4;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
493 break;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
494
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
495 case 2: /* IPv6 address. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
496
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
497 if (remaining_len < 16) goto dump_snmpEngineID_violation;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
498
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
499 s += sprintf( s,
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
500 "%02X%02X %02X%02X %02X%02X %02X%02X::"
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
501 "%02X%02X %02X%02X %02X%02X %02X%02X",
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
502 eb(0), eb(1), eb(2), eb(3),
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
503 eb(4), eb(5), eb(6), eb(7),
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
504 eb(8), eb(9), eb(10), eb(11),
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
505 eb(12), eb(13), eb(14), eb(15) );
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
506
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
507 esp += 16;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
508 remaining_len -= 16;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
509 break;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
510
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
511 case 3: /* MAC address. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
512
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
513 if (remaining_len < 6) goto dump_snmpEngineID_violation;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
514
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
515 s += sprintf( s, "%02X:%02X:%02X:%02X:%02X:%02X",
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
516 eb(0), eb(1), eb(2), eb(3), eb(4), eb(5) );
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
517
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
518 esp += 6;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
519 remaining_len -= 6;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
520 break;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
521
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
522 case 4: /* Text. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
523
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
524 /* Doesn't exist on all (many) architectures */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
525 /* s += snprintf(s, remaining_len+3, "\"%s\"", esp); */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
526 s += sprintf(s, "\"%s\"", esp);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
527 goto dump_snmpEngineID_quit;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
528 break; /*NOTREACHED*/
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
529
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
530 case 5: /* Octets. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
531
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
532 sprint_hexstring(s, esp, remaining_len);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
533 s = strchr(buf, '\0');
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
534 s -= 1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
535 goto dump_snmpEngineID_quit;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
536 break; /*NOTREACHED*/
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
537
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
538
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
539 dump_snmpEngineID_violation:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
540 case 0: /* Violation of RESERVED,
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
541 * -OR- of expected length.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
542 */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
543 gotviolation = 1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
544 s += sprintf(s, "!!! ");
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
545
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
546 default: /* Unknown encoding. */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
547
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
548 if ( !gotviolation ) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
549 s += sprintf(s, "??? ");
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
550 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
551 sprint_hexstring(s, esp, remaining_len);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
552 s = strchr(buf, '\0');
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
553 s -= 1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
554
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
555 goto dump_snmpEngineID_quit;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
556
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
557 } /* endswitch */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
558
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
559
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
560
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
561 /*
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
562 * Cases 1-3 (IP and MAC addresses) should not have trailing
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
563 * octets, but perhaps they do. Throw them in too. XXX
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
564 */
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
565 if (remaining_len > 0) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
566 s += sprintf(s, " (??? ");
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
567
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
568 sprint_hexstring(s, esp, remaining_len);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
569 s = strchr(buf, '\0');
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
570 s -= 1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
571
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
572 s += sprintf(s, ")");
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
573 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
574
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
575
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
576
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
577 dump_snmpEngineID_quit:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
578 if (s) {
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
579 slen = s-buf+1;
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
580 s = calloc(1,slen);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
581 memcpy(s, buf, (slen)-1);
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
582 }
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
583
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST
jlarmour
parents:
diff changeset
584 memset(buf, 0, SNMP_MAXBUF); /* XXX -- Overkill? XXX: Yes! */
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585
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586 return s;
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587
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588 #undef eb
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589 } /* end dump_snmpEngineID() */
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590 #endif /* SNMP_TESTING_CODE */
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591
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592
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593 /*
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594 * create a new time marker.
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595 * NOTE: Caller must free time marker when no longer needed.
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596 */
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597 marker_t atime_newMarker(void)
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598 {
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599 marker_t pm = (marker_t)calloc(1,sizeof(struct timeval));
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600 gettimeofday((struct timeval *)pm, 0);
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601 return pm;
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602 }
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603
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604 /*
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605 * set a time marker.
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606 */
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607 void atime_setMarker(marker_t pm)
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608 {
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609 if (! pm) return;
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610
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611 gettimeofday((struct timeval *)pm, 0);
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612 }
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613
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614 /*
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615 * Test: Has (marked time plus delta) exceeded current time ?
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616 * Returns 0 if test fails or cannot be tested (no marker).
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617 */
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618 int atime_ready( marker_t pm, int deltaT)
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619 {
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620 struct timeval txdelta, txnow;
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621 if (! pm) return 0;
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622
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623 memcpy((void *)&txdelta, pm, sizeof(txdelta));
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624 while (deltaT > 1000) {
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625 txdelta.tv_sec ++;
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626 deltaT -= 1000;
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627 }
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628 txdelta.tv_usec = (deltaT * 1000) + txdelta.tv_usec;
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629
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630 gettimeofday(&txnow, 0);
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631 if (timercmp(&txnow, &txdelta, <))
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632 return 0;
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633
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634 return 1;
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635 }