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annotate packages/net/snmp/lib/current/include/tools.h @ 2729:74dbf4c3f2e1 after-copyright-change-20090129

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Update all copyright banners to reflect FSF ownership; fix and improve licence text.
author jlarmour
date Thu, 29 Jan 2009 17:47:46 +0000
parents d2c90368aeef
children
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1 //==========================================================================
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2 //
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3 // ./lib/current/include/tools.h
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4 //
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5 //
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6 //==========================================================================
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7 // ####ECOSGPLCOPYRIGHTBEGIN####
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8 // -------------------------------------------
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9 // This file is part of eCos, the Embedded Configurable Operating System.
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10 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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11 //
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12 // eCos is free software; you can redistribute it and/or modify it under
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13 // the terms of the GNU General Public License as published by the Free
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14 // Software Foundation; either version 2 or (at your option) any later
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15 // version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT
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18 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License
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23 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use
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27 // macros or inline functions from this file, or you compile this file
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28 // and link it with other works to produce a work based on this file,
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29 // this file does not by itself cause the resulting work to be covered by
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30 // the GNU General Public License. However the source code for this file
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31 // must still be made available in accordance with section (3) of the GNU
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32 // General Public License v2.
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33 //
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34 // This exception does not invalidate any other reasons why a work based
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35 // on this file might be covered by the GNU General Public License.
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36 // -------------------------------------------
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37 // ####ECOSGPLCOPYRIGHTEND####
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38 //####UCDSNMPCOPYRIGHTBEGIN####
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39 //
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40 // -------------------------------------------
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41 //
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42 // Portions of this software may have been derived from the UCD-SNMP
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43 // project, <http://ucd-snmp.ucdavis.edu/> from the University of
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44 // California at Davis, which was originally based on the Carnegie Mellon
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45 // University SNMP implementation. Portions of this software are therefore
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46 // covered by the appropriate copyright disclaimers included herein.
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47 //
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48 // The release used was version 4.1.2 of May 2000. "ucd-snmp-4.1.2"
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49 // -------------------------------------------
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50 //
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51 //####UCDSNMPCOPYRIGHTEND####
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52 //==========================================================================
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53 //#####DESCRIPTIONBEGIN####
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54 //
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55 // Author(s): hmt
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56 // Contributors: hmt
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57 // Date: 2000-05-30
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58 // Purpose: Port of UCD-SNMP distribution to eCos.
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59 // Description:
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60 //
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61 //
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62 //####DESCRIPTIONEND####
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63 //
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64 //==========================================================================
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65 /********************************************************************
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66 Copyright 1989, 1991, 1992 by Carnegie Mellon University
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67
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68 Derivative Work -
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69 Copyright 1996, 1998, 1999, 2000 The Regents of the University of California
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70
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71 All Rights Reserved
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72
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73 Permission to use, copy, modify and distribute this software and its
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74 documentation for any purpose and without fee is hereby granted,
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75 provided that the above copyright notice appears in all copies and
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76 that both that copyright notice and this permission notice appear in
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77 supporting documentation, and that the name of CMU and The Regents of
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78 the University of California not be used in advertising or publicity
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79 pertaining to distribution of the software without specific written
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80 permission.
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81
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82 CMU AND THE REGENTS OF THE UNIVERSITY OF CALIFORNIA DISCLAIM ALL
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83 WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
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84 WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL CMU OR
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85 THE REGENTS OF THE UNIVERSITY OF CALIFORNIA BE LIABLE FOR ANY SPECIAL,
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86 INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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87 FROM THE LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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88 CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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89 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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90 *********************************************************************/
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91 /*
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92 * tools.h
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93 */
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94
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95 #ifndef _TOOLS_H
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96 #define _TOOLS_H
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97
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98 #ifdef __cplusplus
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99 extern "C" {
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100 #endif
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101
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102
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103
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104 /*
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105 * General acros and constants.
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106 */
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107 #ifdef WIN32
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108 # define SNMP_MAXPATH MAX_PATH
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109 #else
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110 # ifdef PATH_MAX
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111 # define SNMP_MAXPATH PATH_MAX
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112 # else
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113 # define SNMP_MAXPATH MAXPATHLEN
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114 # endif
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115 #endif
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116
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117 #define SNMP_MAXBUF (1024 * 4)
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118 #define SNMP_MAXBUF_MEDIUM 1024
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119 #define SNMP_MAXBUF_SMALL 512
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120
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121 #define SNMP_MAXBUF_MESSAGE 1500
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122
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123 #define SNMP_MAXOID 64
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124
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125 #define SNMP_FILEMODE_CLOSED 0600
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126 #define SNMP_FILEMODE_OPEN 0644
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127
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128 #define BYTESIZE(bitsize) ((bitsize + 7) >> 3)
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129 #define ROUNDUP8(x) ( ( (x+7) >> 3 ) * 8 )
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130
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131
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132
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133 #define SNMP_FREE(s) if (s) { free((void *)s); s=NULL; }
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134
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135 /* XXX Not optimal everywhere. */
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136 #define SNMP_MALLOC_STRUCT(s) (struct s *) calloc(1, sizeof(struct s))
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137 #define SNMP_ZERO(s,l) if (s) memset(s, 0, l);
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138
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139
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140 #define TOUPPER(c) (c >= 'a' && c <= 'z' ? c - ('a' - 'A') : c)
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141 #define TOLOWER(c) (c >= 'A' && c <= 'Z' ? c + ('a' - 'A') : c)
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142
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143 #define HEX2VAL(s) \
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144 ((isalpha(s) ? (TOLOWER(s)-'a'+10) : (TOLOWER(s)-'0')) & 0xf)
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145 #define VAL2HEX(s) ( (s) + (((s) >= 10) ? ('a'-10) : '0') )
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146
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147
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148 #define SNMP_MAX(a,b) ((a) > (b) ? (a) : (b))
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149 #define SNMP_MIN(a,b) ((a) > (b) ? (b) : (a))
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150
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151 #ifndef FALSE
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152 #define FALSE 0
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153 #endif
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154 #ifndef TRUE
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155 #define TRUE 1
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156 #endif
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157
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158 /*
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159 * QUIT the FUNction:
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160 * e Error code variable
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161 * l Label to goto to cleanup and get out of the function.
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162 *
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163 * XXX It would be nice if the label could be constructed by the
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164 * preprocessor in context. Limited to a single error return value.
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165 * Temporary hack at best.
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166 */
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167 #define QUITFUN(e, l) \
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168 if ( (e) != SNMPERR_SUCCESS) { \
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169 rval = SNMPERR_GENERR; \
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170 goto l ; \
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171 }
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172
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173 /*
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174 * DIFFTIMEVAL
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175 * Set <diff> to the difference between <now> (current) and <then> (past).
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176 *
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177 * ASSUMES that all inputs are (struct timeval)'s.
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178 * Cf. system.c:calculate_time_diff().
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179 */
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180 #define DIFFTIMEVAL(now, then, diff) \
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181 { \
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182 now.tv_sec--; \
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183 now.tv_usec += 1000000L; \
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184 diff.tv_sec = now.tv_sec - then.tv_sec; \
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185 diff.tv_usec = now.tv_usec - then.tv_usec; \
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186 if (diff.tv_usec > 1000000L){ \
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187 diff.tv_usec -= 1000000L; \
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188 diff.tv_sec++; \
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189 } \
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190 }
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191
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192
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193 /*
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194 * ISTRANSFORM
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195 * ASSUMES the minimum length for ttype and toid.
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196 */
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197 #define USM_LENGTH_OID_TRANSFORM 10
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198
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199 #define ISTRANSFORM(ttype, toid) \
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200 !snmp_oid_compare(ttype, USM_LENGTH_OID_TRANSFORM, \
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201 usm ## toid ## Protocol, USM_LENGTH_OID_TRANSFORM)
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202
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203 #define ENGINETIME_MAX 2147483647 /* ((2^31)-1) */
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204 #define ENGINEBOOT_MAX 2147483647 /* ((2^31)-1) */
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205
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206
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207
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208
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209 /*
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210 * Prototypes.
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211 */
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212 void free_zero (void *buf, size_t size);
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213
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214 u_char *malloc_random (size_t *size);
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215 u_char *malloc_zero (size_t size);
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216 int memdup (u_char **to, const u_char *from, size_t size);
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217
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218 u_int binary_to_hex (const u_char *input, size_t len, char **output);
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219 int hex_to_binary2 (const u_char *input, size_t len, char **output);
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220
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221 void dump_chunk (const char *debugtoken, const char *title, const u_char *buf, int size);
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222 char *dump_snmpEngineID (const u_char *buf, size_t *buflen);
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223
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224 typedef void * marker_t;
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225 marker_t atime_newMarker(void);
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226 void atime_setMarker(marker_t pm);
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227 int atime_ready( marker_t pm, int deltaT);
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228
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229 #ifdef __cplusplus
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230 }
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231 #endif
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232
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233 #endif /* _TOOLS_H */