annotate cinst/windowsstore.c @ 321:824ef90a6721

Move is_elevated into common/util.c file for better reuse
author Andre Heinecke <aheinecke@intevation.de>
date Mon, 07 Apr 2014 10:58:47 +0000
parents 759a898990d1
children 17e1c8f37d72
rev   line source
137
4904fe01055d Factor out windows specific parts
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1 #ifdef WIN32
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2
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3 #include <stdio.h>
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4
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5 #include "windowsstore.h"
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6 #include "errorcodes.h"
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7 #include "listutil.h"
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8 #include "strhelp.h"
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9 #include "logging.h"
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10 #include "util.h"
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11
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12 static PCCERT_CONTEXT
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13 b64_to_cert_context(char *b64_data, size_t b64_size)
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14 {
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15 size_t buf_size = 0;
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16 char *buf = NULL;
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17 PCCERT_CONTEXT pCert = NULL;
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18 int ret = -1;
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19
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20 ret = str_base64_decode (&buf, &buf_size, b64_data, b64_size);
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21
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22 if (ret != 0)
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23 {
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24 printf ("decoding certificate failed\n");
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25 return NULL;
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26 }
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27
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28 pCert = CertCreateContext (CERT_STORE_CERTIFICATE_CONTEXT,
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29 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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30 (const PBYTE) buf,
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31 (DWORD) buf_size,
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32 0,
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33 NULL);
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34 free (buf); /* Windows has a copy */
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35
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36 if (pCert == NULL)
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37 {
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38 char *error = getLastErrorMsg();
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39 if (error)
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40 {
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41 printf ("Failed to create cert context: %s \n", error);
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42 free (error);
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43 }
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44 return NULL;
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45 }
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46 return pCert;
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47 }
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48
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49 void
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50 do_remove(HCERTSTORE hStore, char **to_remove)
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51 {
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52 PCCERT_CONTEXT pCert = NULL;
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53 unsigned int i = 0;
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54
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55 if (!to_remove)
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56 {
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57 return;
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58 }
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59
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60 for (i=0; to_remove[i]; i++)
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61 {
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62 PCCERT_CONTEXT pc_to_remove = NULL;
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63
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64 pc_to_remove = b64_to_cert_context(to_remove[i],
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65 strnlen(to_remove[i], MAX_LINE_LENGTH));
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66
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67 if (pc_to_remove == NULL)
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68 {
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69 char *error = getLastErrorMsg();
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70 if (error)
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71 {
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72 printf ("Failed to create cert context: %s \n", error);
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73 free (error);
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74 }
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75 continue;
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76 }
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77
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78 pCert = CertFindCertificateInStore (hStore,
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8fb12af98960 According to MSDN you Must also provide message encoding flag.
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79 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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80 0,
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81 CERT_FIND_EXISTING,
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82 pc_to_remove,
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83 NULL);
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84
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85 CertFreeCertificateContext (pc_to_remove);
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86
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87 if (pCert == NULL)
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88 {
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89 printf ("Did not find certificate\n");
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90 continue;
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91 }
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92
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93 if (!CertDeleteCertificateFromStore (pCert))
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94 {
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95 /* From MSDN:
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96 The CertDeleteCertificateFromStore function always frees
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97 pCertContext by calling the CertFreeCertificateContext
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98 function, even if an error is encountered. */
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99 char *error = getLastErrorMsg();
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100 printf ("Error deleting certificate. %s", error);
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101 free (error);
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102 continue;
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103 }
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104 }
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105 return;
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106 }
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107
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108 void
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109 do_install(HCERTSTORE hStore, char **to_install)
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110 {
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111 int i = 0,
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112 ret = -1;
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113
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114 if (!to_install)
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115 {
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116 return;
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117 }
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118
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119 for (i = 0; to_install[i]; i++)
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120 {
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121 PCCERT_CONTEXT pc_to_add = NULL;
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122 PCCERT_CONTEXT found_cert = NULL;
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123
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124 pc_to_add = b64_to_cert_context(to_install[i],
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125 strnlen(to_install[i], MAX_LINE_LENGTH));
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126
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127 if (pc_to_add == NULL)
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128 {
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129 continue;
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130 }
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131
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132 found_cert = CertFindCertificateInStore (hStore,
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133 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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134 0,
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135 CERT_FIND_EXISTING,
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136 pc_to_add,
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137 NULL);
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138 if (found_cert != NULL)
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139 {
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140 printf ("Certificate already in store\n");
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141 CertFreeCertificateContext (found_cert);
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142 CertFreeCertificateContext (pc_to_add);
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143 continue;
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144 }
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145
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146 ret = CertAddCertificateContextToStore (hStore,
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147 pc_to_add,
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148 CERT_STORE_ADD_ALWAYS,
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149 NULL);
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150 CertFreeCertificateContext (pc_to_add);
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151 if (!ret)
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152 {
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153 char *error = getLastErrorMsg();
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154 if (error)
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155 {
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156 printf ("Failed to add certificate: %s \n", error);
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157 free (error);
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158 }
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159 }
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160 }
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161 return;
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162 }
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163
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164 int
247
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165 write_stores_win (char **to_install, char **to_remove)
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166 {
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167 HCERTSTORE hStore = NULL;
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168
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169 if (!to_install && !to_remove)
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170 {
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171 /* Nothing to do */
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172 return 0;
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173 }
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174
247
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175 if (!is_elevated())
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176 {
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177 hStore = CertOpenStore (CERT_STORE_PROV_SYSTEM, 0,
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178 0, CERT_SYSTEM_STORE_CURRENT_USER, L"Root");
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179 }
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180 else
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181 {
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182 hStore = CertOpenStore (CERT_STORE_PROV_SYSTEM, 0,
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183 0, CERT_SYSTEM_STORE_LOCAL_MACHINE, L"Root");
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184 }
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185
163
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186 if (!hStore)
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187 {
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188 return ERR_STORE_ACCESS_DENIED;
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189 }
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190
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191 /* Do the actual work */
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192 do_install (hStore, to_install);
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193
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194 do_remove (hStore, to_remove);
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195
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196 if (hStore)
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197 {
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198 CertCloseStore (hStore, 0);
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199 }
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200 return 0;
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201 }
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202 #endif // WIN32

http://wald.intevation.org/projects/trustbridge/