annotate nspr/pr/src/misc/prerrortable.c @ 3:150b72113545

Add DBM and legacydb support
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:32:02 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5
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6
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7
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8 /*
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9
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10 Copyright 1987, 1988 by the Student Information Processing Board
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11 of the Massachusetts Institute of Technology
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12
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13 Permission to use, copy, modify, and distribute this software
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14 and its documentation for any purpose and without fee is
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15 hereby granted, provided that the above copyright notice
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16 appear in all copies and that both that copyright notice and
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17 this permission notice appear in supporting documentation,
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18 and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
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19 used in advertising or publicity pertaining to distribution
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20 of the software without specific, written prior permission.
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21 M.I.T. and the M.I.T. S.I.P.B. make no representations about
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22 the suitability of this software for any purpose. It is
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23 provided "as is" without express or implied warranty.
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24
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25 */
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26
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27 #include <string.h>
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28 #include <assert.h>
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29 #include <errno.h>
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30 #include "prmem.h"
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31 #include "prerror.h"
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32
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33 #define ERRCODE_RANGE 8 /* # of bits to shift table number */
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34 #define BITS_PER_CHAR 6 /* # bits to shift per character in name */
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35
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36 #ifdef NEED_SYS_ERRLIST
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37 extern char const * const sys_errlist[];
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38 extern const int sys_nerr;
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39 #endif
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40
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41 /* List of error tables */
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42 struct PRErrorTableList {
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43 struct PRErrorTableList *next;
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44 const struct PRErrorTable *table;
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45 struct PRErrorCallbackTablePrivate *table_private;
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46 };
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47 static struct PRErrorTableList * Table_List = (struct PRErrorTableList *) NULL;
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48
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49 /* Supported languages */
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50 static const char * default_languages[] = { "i-default", "en", 0 };
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51 static const char * const * callback_languages = default_languages;
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52
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53 /* Callback info */
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54 static struct PRErrorCallbackPrivate *callback_private = 0;
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55 static PRErrorCallbackLookupFn *callback_lookup = 0;
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56 static PRErrorCallbackNewTableFn *callback_newtable = 0;
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57
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58
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59 static const char char_set[] =
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60 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
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61
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62 static const char *
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63 error_table_name (PRErrorCode num)
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64 {
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65 static char buf[6]; /* only used if internal code problems exist */
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66
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67 long ch;
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68 int i;
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69 char *p;
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70
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71 /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
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72 p = buf;
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73 num >>= ERRCODE_RANGE;
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74 /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
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75 num &= 077777777;
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76 /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
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77 for (i = 4; i >= 0; i--) {
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78 ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
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79 if (ch != 0)
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80 *p++ = char_set[ch-1];
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81 }
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82 *p = '\0';
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83 return(buf);
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84 }
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85
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86 PR_IMPLEMENT(const char *)
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87 PR_ErrorToString(PRErrorCode code, PRLanguageCode language)
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88 {
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89 /* static buffer only used if code is using inconsistent error message
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90 * numbers, so just ignore the possible thread contention
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91 */
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92 static char buffer[25];
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93
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94 const char *msg;
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95 int offset;
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96 PRErrorCode table_num;
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97 struct PRErrorTableList *et;
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98 int started = 0;
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99 char *cp;
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100
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101 for (et = Table_List; et; et = et->next) {
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102 if (et->table->base <= code &&
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103 et->table->base + et->table->n_msgs > code) {
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104 /* This is the right table */
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105 if (callback_lookup) {
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106 msg = callback_lookup(code, language, et->table,
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107 callback_private, et->table_private);
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108 if (msg) return msg;
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109 }
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110
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111 return(et->table->msgs[code - et->table->base].en_text);
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112 }
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113 }
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114
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115 if (code >= 0 && code < 256) {
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116 return strerror(code);
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117 }
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118
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119 offset = (int) (code & ((1<<ERRCODE_RANGE)-1));
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120 table_num = code - offset;
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121 strcpy (buffer, "Unknown code ");
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122 if (table_num) {
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123 strcat(buffer, error_table_name (table_num));
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124 strcat(buffer, " ");
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125 }
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126 for (cp = buffer; *cp; cp++)
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127 ;
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128 if (offset >= 100) {
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129 *cp++ = (char)('0' + offset / 100);
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130 offset %= 100;
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131 started++;
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132 }
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133 if (started || offset >= 10) {
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134 *cp++ = (char)('0' + offset / 10);
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135 offset %= 10;
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Andre Heinecke <andre.heinecke@intevation.de>
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136 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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137 *cp++ = (char)('0' + offset);
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Andre Heinecke <andre.heinecke@intevation.de>
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138 *cp = '\0';
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Andre Heinecke <andre.heinecke@intevation.de>
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139 return(buffer);
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Andre Heinecke <andre.heinecke@intevation.de>
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140 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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141
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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142 PR_IMPLEMENT(const char *)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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143 PR_ErrorToName(PRErrorCode code)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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144 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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145 struct PRErrorTableList *et;
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146
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147 for (et = Table_List; et; et = et->next) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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148 if (et->table->base <= code &&
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149 et->table->base + et->table->n_msgs > code) {
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150 /* This is the right table */
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151 return(et->table->msgs[code - et->table->base].name);
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152 }
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153 }
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154
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155 return 0;
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156 }
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157
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158 PR_IMPLEMENT(const char * const *)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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159 PR_ErrorLanguages(void)
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Andre Heinecke <andre.heinecke@intevation.de>
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160 {
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Andre Heinecke <andre.heinecke@intevation.de>
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161 return callback_languages;
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162 }
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Andre Heinecke <andre.heinecke@intevation.de>
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163
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Andre Heinecke <andre.heinecke@intevation.de>
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164 PR_IMPLEMENT(PRErrorCode)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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165 PR_ErrorInstallTable(const struct PRErrorTable *table)
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166 {
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167 struct PRErrorTableList * new_et;
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168
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169 new_et = (struct PRErrorTableList *)
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170 PR_Malloc(sizeof(struct PRErrorTableList));
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171 if (!new_et)
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172 return errno; /* oops */
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173 new_et->table = table;
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Andre Heinecke <andre.heinecke@intevation.de>
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174 if (callback_newtable) {
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175 new_et->table_private = callback_newtable(table, callback_private);
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176 } else {
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177 new_et->table_private = 0;
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178 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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179 new_et->next = Table_List;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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180 Table_List = new_et;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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181 return 0;
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Andre Heinecke <andre.heinecke@intevation.de>
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182 }
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183
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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184 PR_IMPLEMENT(void)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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185 PR_ErrorInstallCallback(const char * const * languages,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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186 PRErrorCallbackLookupFn *lookup,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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187 PRErrorCallbackNewTableFn *newtable,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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188 struct PRErrorCallbackPrivate *cb_private)
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Andre Heinecke <andre.heinecke@intevation.de>
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189 {
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Andre Heinecke <andre.heinecke@intevation.de>
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190 struct PRErrorTableList *et;
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
191
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Andre Heinecke <andre.heinecke@intevation.de>
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192 assert(strcmp(languages[0], "i-default") == 0);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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193 assert(strcmp(languages[1], "en") == 0);
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Andre Heinecke <andre.heinecke@intevation.de>
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194
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Andre Heinecke <andre.heinecke@intevation.de>
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195 callback_languages = languages;
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Andre Heinecke <andre.heinecke@intevation.de>
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196 callback_lookup = lookup;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
197 callback_newtable = newtable;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
198 callback_private = cb_private;
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
199
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
200 if (callback_newtable) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
201 for (et = Table_List; et; et = et->next) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202 et->table_private = callback_newtable(et->table, callback_private);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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203 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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204 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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205 }
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