Mon, 19 Aug 2013 12:50:42 +0200
fixed put bugs
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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2013 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include <stdio.h> |
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30 | #include <stdlib.h> |
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31 | #include <string.h> |
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32 | #include <sys/types.h> |
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33 | #include <sys/stat.h> |
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34 | #include <ucx/map.h> |
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35 | #include <errno.h> |
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36 | #include <libxml/tree.h> |
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37 | |
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38 | #include "config.h" |
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39 | #include "utils.h" |
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40 | |
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41 | #define xstreq(a,b) xmlStrEqual(BAD_CAST a, BAD_CAST b) |
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42 | |
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43 | static UcxMap *repos; |
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44 | static UcxMap *keys; |
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45 | |
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46 | int check_config_dir() { |
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47 | char *file = util_concat_path(getenv("HOME"), ".dav"); |
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48 | int ret = 0; |
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49 | if(mkdir(file, S_IRWXU)) { |
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50 | if(errno != EEXIST) { |
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51 | ret = 1; |
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52 | } |
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53 | } |
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54 | free(file); |
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55 | return ret; |
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56 | } |
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57 | |
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58 | void load_config() { |
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59 | repos = ucx_map_new(16); |
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60 | keys = ucx_map_new(16); |
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61 | if(check_config_dir()) { |
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62 | return; |
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63 | } |
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64 | |
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65 | char *file = util_concat_path(getenv("HOME"), ".dav/config.xml"); |
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66 | xmlDoc *doc = xmlReadFile(file, NULL, 0); |
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67 | if(!doc) { |
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68 | doc = xmlNewDoc(BAD_CAST "1.0"); |
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69 | xmlNode *root = xmlNewNode(NULL, BAD_CAST "configuration"); |
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70 | xmlDocSetRootElement(doc, root); |
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71 | xmlSaveFormatFileEnc(file, doc, "UTF-8", 1); |
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72 | xmlFreeDoc(doc); |
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73 | free(file); |
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74 | return; |
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75 | } |
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76 | free(file); |
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77 | |
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78 | xmlNode *xml_root = xmlDocGetRootElement(doc); |
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79 | xmlNode *node = xml_root->children; |
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80 | while(node) { |
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81 | if(node->type == XML_ELEMENT_NODE) { |
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82 | if(xstreq(node->name, "repository")) { |
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83 | load_repository(node); |
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84 | } else if(xstreq(node->name, "key")) { |
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85 | load_key(node); |
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86 | } |
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87 | } |
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88 | node = node->next; |
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89 | } |
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90 | |
9 | 91 | xmlFreeDoc(doc); |
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92 | } |
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93 | |
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94 | void load_repository(xmlNode *reponode) { |
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95 | xmlNode *node = reponode->children; |
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96 | Repository *repo = calloc(1, sizeof(Repository)); |
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97 | repo->store_key_property = true; |
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98 | repo->decrypt = false; |
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99 | while(node) { |
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100 | if(node->type == XML_ELEMENT_NODE) { |
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101 | char *value = util_xml_get_text(node); |
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102 | if(!value) { |
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103 | // next |
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104 | } else if(xstreq(node->name, "name")) { |
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105 | repo->name = strdup(value); |
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106 | } else if(xstreq(node->name, "url")) { |
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107 | repo->url = strdup(value); |
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108 | } else if(xstreq(node->name, "user")) { |
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109 | repo->user = strdup(value); |
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110 | } else if(xstreq(node->name, "password")) { |
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111 | repo->password = util_base64decode(value); |
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112 | } else if(xstreq(node->name, "default-key")) { |
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113 | repo->default_key = strdup(value); |
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114 | } else if(xstreq(node->name, "encrypt")) { |
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115 | repo->encrypt = util_getboolean(value); |
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116 | } else if(xstreq(node->name, "decrypt")) { |
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117 | repo->decrypt = util_getboolean(value); |
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118 | } else if(xstreq(node->name, "store-key-property")) { |
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119 | repo->store_key_property = util_getboolean(value); |
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120 | } |
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121 | } |
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122 | node = node->next; |
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123 | } |
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124 | |
21 | 125 | if(!repo->name) { |
126 | fprintf( | |
127 | stderr, | |
128 | "Cannot load config.xml: missing name for repository.\n"); | |
129 | fprintf(stderr, "Abort.\n"); | |
130 | exit(-1); | |
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131 | } |
21 | 132 | if(!repo->url) { |
133 | fprintf( | |
134 | stderr, | |
135 | "Cannot load config.xml: " | |
136 | "missing url for repository '%s'.\n", repo->name); | |
137 | fprintf(stderr, "Abort.\n"); | |
138 | exit(-1); | |
139 | } | |
140 | ||
141 | ucx_map_cstr_put(repos, repo->name, repo); | |
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142 | } |
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143 | |
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144 | void load_key(xmlNode *keynode) { |
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145 | xmlNode *node = keynode->children; |
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146 | Key *key = calloc(1, sizeof(Key)); |
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147 | key->type = KEY_AES256; |
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148 | |
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149 | while(node) { |
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150 | if(node->type == XML_ELEMENT_NODE) { |
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151 | char *value = util_xml_get_text(node); |
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152 | if(!value) { |
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153 | // next |
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154 | } else if(xstreq(node->name, "name")) { |
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155 | key->name = strdup(value); |
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156 | } else if(xstreq(node->name, "file")) { |
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157 | // load key file |
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158 | sstr_t key_data = load_key_file(value); |
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159 | if(key_data.length > 0) { |
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160 | key->data = key_data.ptr; |
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161 | key->length = key_data.length; |
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162 | } |
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163 | } else if(xstreq(node->name, "type")) { |
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164 | if(!strcmp(value, "aes128")) { |
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165 | key->type = KEY_AES128; |
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166 | } else if(!strcmp(value, "aes256")) { |
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167 | key->type = KEY_AES256; |
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168 | } |
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169 | } |
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170 | |
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171 | } |
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172 | node = node->next; |
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173 | } |
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174 | |
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175 | if(key->name) { |
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176 | if(key->type == KEY_AES128) { |
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177 | if(key->length < 16) { |
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178 | return; |
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179 | } |
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180 | key->length = 16; |
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181 | } |
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182 | if(key->type == KEY_AES256) { |
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183 | if(key->length < 32) { |
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184 | return; |
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185 | } |
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186 | key->length = 32; |
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187 | } |
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188 | ucx_map_cstr_put(keys, key->name, key); |
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189 | } else { |
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190 | // TODO: free |
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191 | } |
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192 | } |
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193 | |
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194 | sstr_t load_key_file(char *filename) { |
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195 | sstr_t k; |
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196 | k.ptr = NULL; |
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197 | k.length = 0; |
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198 | |
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199 | FILE *file = NULL; |
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200 | if(filename[0] == '/') { |
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201 | file = fopen(filename, "r"); |
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202 | } else { |
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203 | char *path = util_concat_path(getenv("HOME"), ".dav/"); |
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204 | char *p2 = util_concat_path(path, filename); |
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205 | file = fopen(p2, "r"); |
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206 | free(path); |
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207 | free(p2); |
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208 | } |
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209 | |
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210 | if(!file) { |
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211 | return k; |
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212 | } |
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213 | |
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214 | char *data = malloc(256); |
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215 | size_t r = fread(data, 1, 256, file); |
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216 | k.ptr = data; |
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217 | k.length = r; |
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218 | |
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219 | fclose(file); |
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220 | return k; |
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221 | } |
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222 | |
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223 | Repository* get_repository(char *name) { |
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224 | if(!name) { |
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225 | return NULL; |
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226 | } |
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227 | return ucx_map_cstr_get(repos, name); |
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228 | } |
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229 | |
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230 | Key* get_key(char *name) { |
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231 | if(!name) { |
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232 | return NULL; |
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233 | } |
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234 | return ucx_map_cstr_get(keys, name); |
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235 | } |