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annotate cinst/mozilla.c @ 99:bc1e6732f43c

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Add specification and some cleanups
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 21 Mar 2014 11:54:35 +0000
parents b3e8e047bc2c
children 0c8ea71a89cd
rev   line source
44
b3e8e047bc2c Commit first scratch of mozilla installer
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1
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2 #include <stdio.h>
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3 #include <stdlib.h>
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4 #include <sys/stat.h>
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5 #include <unistd.h>
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6 #include <string.h>
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7 #include <fcntl.h>
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8 #include <errno.h>
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9
99
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10 /* @file Mozilla installation process
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11 *
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12 * Reads from stdin a list of instructions in the form:
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13 *
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14 * I:<base64 DER econded certificate>\r\n
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15 * R:<base64 DER econded certificate>\r\n
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16 * ...
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17 *
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18 * The maximum size of an input line is 1000 characters
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19 * (including the \r\n) at the end of the line.
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20 *
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21 * Certificates marked with I: will be installed and the ones
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22 * marked with R: will be searched and if available removed from
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23 * the databases.
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24 *
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25 * This tool tries to find all NSS databases the user has
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26 * access to and to execute the instructions on all of them.
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27 *
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28 * If there are other processes accessing the databases the caller
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29 * has to ensure that those are terminated before this process is
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30 * executed.
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31 *
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32 * Returns 0 on success (Even when no stores where found) an error value
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33 * as defined in errorcodes.h otherwise.
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34 *
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35 * Success messages are written to stdout. Errors to stderr. For logging
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36 * purposes each installation / removal of a certificate will be reported
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37 * with the profile name that it modified.
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38 *
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39 */
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40
44
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41 /* @brief IniParser for mozilla profiles.ini
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42 *
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43 * Parse data to find values formed in
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44 *
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45 * [Profile99]
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46 * IsRelative=1
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47 * Path=Profiles/fooo.bar
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48 *
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49 * or
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50 * [Profile0]
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51 * IsRelative=0
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52 * Path=c:\foo\bar\baz
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53 *
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54 * Mozilla also accepts the ini file on Windows even if it is UTF-16
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55 * encoded.
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56 * */
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57
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58
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59 /**
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60 * @brief Read a file into memory.
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61 *
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62 * @param[in] fileName Name of the file (UTF-8 encoded).
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63 * @param[out] data Newly allocated pointer to the file content.
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64 * @param[out] size Size in Bytes of the file content.
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65 * @param[in] maxSize the maximum size to read.
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66 *
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67 * @return 0 on success an error code otherwise.
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68 */
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69
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70 #define RAF_UNKNOWN -1
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71 #define RAF_UNREADABLE -2
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72 #define RAF_STATFAILED -3
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73 #define RAF_TOOLARGE -4
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74 #define RAF_OUTOFCORE -5
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75 int readFile(const char *fileName, char **data, size_t *size,
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76 const size_t maxSize)
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77 {
99
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78 /* TODO
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79 * split out the read file from common/listutil.c and use that. */
44
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80 int fd = -1;
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81 struct stat fileStat;
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82 int rc = 0;
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83 ssize_t bRead = 0;
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84 int retval = -1;
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85
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86 memset(&fileStat, 0, sizeof(fileStat));
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87
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88 fd = open(fileName, O_RDONLY);
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89 if (fd == -1) {
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90 retval = RAF_UNREADABLE;
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91 goto cleanup;
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92 }
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93
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94 rc = fstat(fd, &fileStat);
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95 if (rc < 0) {
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96 retval = RAF_STATFAILED;
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97 goto cleanup;
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98 }
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99
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100 // Check the size of the file
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101 if (!fileStat.st_size) {
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102 retval = RAF_STATFAILED;
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103 goto cleanup;
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104 }
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105
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106 if (fileStat.st_size > maxSize &&
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107 fileStat.st_size > 0) {
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108 retval = RAF_TOOLARGE;
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109 goto cleanup;
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110 }
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111
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112 *size = (size_t) fileStat.st_size;
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113
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114 *data = (char*) malloc(*size);
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115
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116 if (*data == NULL) {
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117 retval = RAF_OUTOFCORE;
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118 goto cleanup;
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119 }
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120
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121 bRead = read(fd, *data, *size);
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122
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123 if (bRead < 0 || (size_t) bRead != *size) {
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124 if (bRead == -1) {
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125 printf("Error: %s \n", strerror(errno));
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126 }
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127 retval = RAF_UNKNOWN;
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128 *size = 0;
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129 if (*data) {
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130 free(*data);
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131 *data = NULL;
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132 }
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133 goto cleanup;
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134 }
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135
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136 cleanup:
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137
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138 if (fd && fd != -1) {
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139 close(fd);
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140 fd = -1;
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141 }
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142
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143 return retval;
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144 }
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145
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146
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147 #ifndef _WIN32
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148
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149 #define INI_LOCATIONS { \
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150 "/.mozilla/firefox/profiles.ini", \
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151 "/.mozilla/thunderbird/profiles.ini", \
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152 NULL }
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153
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154 /**
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155 * @brief Get a list of all mozilla profile directories for this user
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156 *
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157 * Read the profiles.ini and extract all profile paths from that.
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158 *
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159 * @return NULL terminated array of strings containing containing the
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160 * absolute path of the profile directories. The array needs to
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161 * be freed by the caller.
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162 */
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163 char **getProfilePaths() {
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164 char *homedir = NULL,
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165 **retval = NULL;
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166 const char* const iniLocations[] = INI_LOCATIONS;
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167 int i = 0;
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168
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169 homedir = getenv ("HOME");
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170
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171 if (!homedir) {
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172 printf ("Could not get HOME\n");
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173 return NULL;
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174 }
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175
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176 for (i = 0; iniLocations[i] != NULL; i++) {
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177 char *candidate[MAX_PATH_LEN],
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178 *fileContent = NULL;
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179 const size_t needed = strnlen (homedir, MAX_PATH_LEN) +
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180 strnlen (iniLocations[i], MAX_PATH_LEN);
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181 fileSize = 0;
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182 int err = 0;
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183
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184 memset (candidate, 0, MAX_PATH_LEN);
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185
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186 /* Verify that addition of strlen did not overflow and
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187 * that the buffer is large enough */
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188 if (needed < strnlen (homedir, MAX_PATH_LEN_LEN) || needed >= MAX_PATH - 1) {
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189 printf ("Error invalid HOME environment variable");
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190 return NULL;
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191 }
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192
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193 strncpy (candidate, homedir, MAX_PATH_LEN);
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194 /* Environment might have been modified */
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195 if (candidate[MAX_PATH_LEN - 1] != '\0') {
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196 printf ("Error invalid HOME");
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197 return NULL;
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198 }
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199 strncat (candidate, iniLocations[i], MAX_PATH_LEN - strnlen(candidate,
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200 MAX_PATH_LEN) - 1);
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201
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202 rc = readFile (candidate, &fileContent, &fileSize, MAX_FILESIZE);
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203
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204 if (err) {
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205 printf ("Failed to read file.\n");
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206 continue;
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207 }
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208 parseIni (fileContent, &retval);
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209 }
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210 }
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211 #else /* _WIN32 */
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212 char **getProfilePaths() {
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213 return NULL;
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214 }
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215 #endif
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216
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217 int main(int argc, char *argv) {
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218 }
http://wald.intevation.org/projects/trustbridge/