annotate cinst/windowsstore.c @ 289:9ad00a3255f4

Change cinst from stdin input to use arguments. As we have to execute this process on Windows over the shell a stdin / stdout communication is not really possible without some major hacks. So you now have to supply an instructions file and the path to the certificatelist as arguments when this process is called
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 02 Apr 2014 13:52:02 +0000
parents 759a898990d1
children 824ef90a6721
rev   line source
137
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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
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11 static PCCERT_CONTEXT
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12 b64_to_cert_context(char *b64_data, size_t b64_size)
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13 {
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14 size_t buf_size = 0;
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15 char *buf = NULL;
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16 PCCERT_CONTEXT pCert = NULL;
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17 int ret = -1;
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18
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19 ret = str_base64_decode (&buf, &buf_size, b64_data, b64_size);
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20
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21 if (ret != 0)
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22 {
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23 printf ("decoding certificate failed\n");
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24 return NULL;
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25 }
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26
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27 pCert = CertCreateContext (CERT_STORE_CERTIFICATE_CONTEXT,
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28 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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29 (const PBYTE) buf,
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30 (DWORD) buf_size,
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31 0,
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32 NULL);
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33 free (buf); /* Windows has a copy */
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34
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35 if (pCert == NULL)
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36 {
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37 char *error = getLastErrorMsg();
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38 if (error)
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39 {
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40 printf ("Failed to create cert context: %s \n", error);
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41 free (error);
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42 }
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43 return NULL;
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44 }
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45 return pCert;
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46 }
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47
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48 void
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49 do_remove(HCERTSTORE hStore, char **to_remove)
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50 {
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51 PCCERT_CONTEXT pCert = NULL;
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52 unsigned int i = 0;
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53
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54 if (!to_remove)
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55 {
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56 return;
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57 }
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58
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59 for (i=0; to_remove[i]; i++)
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60 {
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61 PCCERT_CONTEXT pc_to_remove = NULL;
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62
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63 pc_to_remove = b64_to_cert_context(to_remove[i],
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64 strnlen(to_remove[i], MAX_LINE_LENGTH));
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65
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66 if (pc_to_remove == NULL)
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67 {
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68 char *error = getLastErrorMsg();
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69 if (error)
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70 {
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71 printf ("Failed to create cert context: %s \n", error);
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72 free (error);
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73 }
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74 continue;
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75 }
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76
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77 pCert = CertFindCertificateInStore (hStore,
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8fb12af98960 According to MSDN you Must also provide message encoding flag.
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78 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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79 0,
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80 CERT_FIND_EXISTING,
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81 pc_to_remove,
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82 NULL);
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83
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84 CertFreeCertificateContext (pc_to_remove);
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85
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86 if (pCert == NULL)
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87 {
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88 printf ("Did not find certificate\n");
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89 continue;
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90 }
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91
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92 if (!CertDeleteCertificateFromStore (pCert))
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93 {
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94 /* From MSDN:
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95 The CertDeleteCertificateFromStore function always frees
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96 pCertContext by calling the CertFreeCertificateContext
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97 function, even if an error is encountered. */
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98 char *error = getLastErrorMsg();
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99 printf ("Error deleting certificate. %s", error);
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100 free (error);
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101 continue;
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102 }
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103 }
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104 return;
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105 }
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106
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107 void
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108 do_install(HCERTSTORE hStore, char **to_install)
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109 {
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110 int i = 0,
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111 ret = -1;
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112
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113 if (!to_install)
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114 {
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115 return;
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116 }
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117
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118 for (i = 0; to_install[i]; i++)
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119 {
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120 PCCERT_CONTEXT pc_to_add = NULL;
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121 PCCERT_CONTEXT found_cert = NULL;
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122
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123 pc_to_add = b64_to_cert_context(to_install[i],
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124 strnlen(to_install[i], MAX_LINE_LENGTH));
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125
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126 if (pc_to_add == NULL)
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127 {
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128 continue;
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129 }
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130
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131 found_cert = CertFindCertificateInStore (hStore,
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132 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
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133 0,
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134 CERT_FIND_EXISTING,
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135 pc_to_add,
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136 NULL);
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137 if (found_cert != NULL)
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138 {
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139 printf ("Certificate already in store\n");
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140 CertFreeCertificateContext (found_cert);
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141 CertFreeCertificateContext (pc_to_add);
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142 continue;
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143 }
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144
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145 ret = CertAddCertificateContextToStore (hStore,
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146 pc_to_add,
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147 CERT_STORE_ADD_ALWAYS,
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148 NULL);
222
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149 CertFreeCertificateContext (pc_to_add);
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150 if (!ret)
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151 {
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152 char *error = getLastErrorMsg();
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153 if (error)
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154 {
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155 printf ("Failed to add certificate: %s \n", error);
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156 free (error);
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157 }
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158 }
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159 }
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160 return;
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161 }
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162
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163 static bool is_elevated() {
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164 HANDLE hToken = NULL;
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165 bool ret = false;
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166 if (OpenProcessToken (GetCurrentProcess(), TOKEN_QUERY, &hToken))
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167 {
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168 DWORD elevation;
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169 DWORD cbSize = sizeof (DWORD);
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170 if (GetTokenInformation (hToken, TokenElevation, &elevation,
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171 sizeof (TokenElevation), &cbSize))
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172 {
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173 ret = elevation;
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174 }
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175 }
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176 if (hToken)
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177 CloseHandle (hToken);
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178
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179 return ret;
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180 }
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181
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182 int
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183 write_stores_win (char **to_install, char **to_remove)
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184 {
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185 HCERTSTORE hStore = NULL;
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186
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187 if (!to_install && !to_remove)
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188 {
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189 /* Nothing to do */
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190 return 0;
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191 }
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192
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193 if (!is_elevated())
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194 {
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195 hStore = CertOpenStore (CERT_STORE_PROV_SYSTEM, 0,
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196 0, CERT_SYSTEM_STORE_CURRENT_USER, L"Root");
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197 }
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198 else
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199 {
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200 hStore = CertOpenStore (CERT_STORE_PROV_SYSTEM, 0,
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201 0, CERT_SYSTEM_STORE_LOCAL_MACHINE, L"Root");
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202 }
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203
163
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204 if (!hStore)
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205 {
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206 return ERR_STORE_ACCESS_DENIED;
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207 }
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208
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209 /* Do the actual work */
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210 do_install (hStore, to_install);
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211
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212 do_remove (hStore, to_remove);
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213
163
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214 if (hStore)
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215 {
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216 CertCloseStore (hStore, 0);
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217 }
163
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218 return 0;
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219 }
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220 #endif // WIN32

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