1 | /* |
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2 | * Copyright (C) 2020-2021 Soleta Networks <info@soleta.eu> |
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3 | * |
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4 | * This program is free software: you can redistribute it and/or modify it under |
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5 | * the terms of the GNU Affero General Public License as published by the |
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6 | * Free Software Foundation; either version 3 of the License, or |
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7 | * (at your option) any later version. |
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8 | */ |
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9 | |
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10 | #include "json.h" |
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11 | #include <stdint.h> |
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12 | |
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13 | int og_json_parse_string(json_t *element, const char **str) |
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14 | { |
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15 | if (json_typeof(element) != JSON_STRING) |
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16 | return -1; |
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17 | |
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18 | *str = json_string_value(element); |
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19 | return 0; |
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20 | } |
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21 | |
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22 | int og_json_parse_string_copy(json_t *element, char *str, size_t size) |
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23 | { |
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24 | const char *reference_str; |
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25 | int err = 0; |
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26 | |
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27 | err = og_json_parse_string(element, &reference_str); |
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28 | if (err != 0) |
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29 | return err; |
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30 | |
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31 | err = snprintf(str, size, "%s", reference_str); |
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32 | if (err >= size) |
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33 | return -1; |
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34 | return 0; |
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35 | } |
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36 | |
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37 | int og_json_parse_uint64(json_t *element, uint64_t *integer) |
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38 | { |
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39 | if (json_typeof(element) != JSON_INTEGER) |
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40 | return -1; |
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41 | |
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42 | *integer = json_integer_value(element); |
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43 | return 0; |
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44 | } |
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45 | |
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46 | int og_json_parse_uint(json_t *element, uint32_t *integer) |
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47 | { |
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48 | if (json_typeof(element) != JSON_INTEGER) |
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49 | return -1; |
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50 | |
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51 | *integer = json_integer_value(element); |
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52 | return 0; |
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53 | } |
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54 | |
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55 | int og_json_parse_bool(json_t *element, bool *value) |
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56 | { |
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57 | if (json_typeof(element) == JSON_TRUE) |
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58 | *value = true; |
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59 | else if (json_typeof(element) == JSON_FALSE) |
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60 | *value = false; |
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61 | else |
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62 | return -1; |
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63 | |
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64 | return 0; |
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65 | } |
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66 | |
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67 | int og_json_parse_scope(json_t *element, struct og_scope *scope, |
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68 | const uint64_t required_flags) |
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69 | { |
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70 | uint64_t flags = 0UL; |
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71 | const char *key; |
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72 | json_t *value; |
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73 | int err = 0; |
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74 | |
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75 | json_object_foreach(element, key, value) { |
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76 | if (!strcmp(key, "id")) { |
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77 | err = og_json_parse_uint(value, &scope->id); |
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78 | flags |= OG_PARAM_SCOPE_ID; |
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79 | } else if (!strcmp(key, "type")) { |
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80 | err = og_json_parse_string(value, &scope->type); |
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81 | flags |= OG_PARAM_SCOPE_TYPE; |
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82 | } else { |
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83 | err = -1; |
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84 | } |
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85 | |
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86 | if (err < 0) |
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87 | return err; |
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88 | } |
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89 | |
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90 | if (flags != required_flags) |
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91 | return -1; |
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92 | |
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93 | return err; |
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94 | } |
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95 | |
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96 | int og_json_parse_partition(json_t *element, struct og_partition *part, |
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97 | uint64_t required_flags) |
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98 | { |
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99 | uint64_t flags = 0UL; |
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100 | const char *key; |
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101 | json_t *value; |
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102 | int err = 0; |
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103 | |
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104 | json_object_foreach(element, key, value) { |
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105 | if (!strcmp(key, "partition")) { |
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106 | err = og_json_parse_string(value, &part->number); |
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107 | flags |= OG_PARAM_PART_NUMBER; |
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108 | } else if (!strcmp(key, "code")) { |
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109 | err = og_json_parse_string(value, &part->code); |
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110 | flags |= OG_PARAM_PART_CODE; |
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111 | } else if (!strcmp(key, "filesystem")) { |
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112 | err = og_json_parse_string(value, &part->filesystem); |
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113 | flags |= OG_PARAM_PART_FILESYSTEM; |
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114 | } else if (!strcmp(key, "size")) { |
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115 | err = og_json_parse_string(value, &part->size); |
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116 | flags |= OG_PARAM_PART_SIZE; |
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117 | } else if (!strcmp(key, "format")) { |
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118 | err = og_json_parse_string(value, &part->format); |
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119 | flags |= OG_PARAM_PART_FORMAT; |
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120 | } else if (!strcmp(key, "disk")) { |
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121 | err = og_json_parse_string(value, &part->disk); |
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122 | flags |= OG_PARAM_PART_DISK; |
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123 | } else if (!strcmp(key, "disk_type")) { |
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124 | err = og_json_parse_string(value, &part->disk_type); |
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125 | flags |= OG_PARAM_PART_DISK_TYPE; |
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126 | } else if (!strcmp(key, "os")) { |
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127 | err = og_json_parse_string(value, &part->os); |
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128 | flags |= OG_PARAM_PART_OS; |
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129 | } else if (!strcmp(key, "used_size")) { |
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130 | err = og_json_parse_string(value, &part->used_size); |
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131 | flags |= OG_PARAM_PART_USED_SIZE; |
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132 | } |
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133 | |
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134 | if (err < 0) |
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135 | return err; |
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136 | } |
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137 | |
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138 | if ((flags & required_flags) != required_flags) |
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139 | return -1; |
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140 | |
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141 | return err; |
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142 | } |
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143 | |
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144 | static int og_json_parse_procedure_cmd(json_t *element, int position, |
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145 | struct og_procedure *proc) |
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146 | { |
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147 | struct og_procedure_step *step; |
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148 | uint32_t err = 0; |
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149 | const char *key; |
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150 | json_t *value; |
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151 | |
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152 | step = &proc->steps[proc->num_steps++]; |
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153 | step->type = OG_STEP_COMMAND; |
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154 | step->position = position; |
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155 | |
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156 | json_object_foreach(element, key, value) { |
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157 | if (!strcmp(key, "command")) |
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158 | err = og_json_parse_string(value, &step->cmd.type); |
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159 | else if (!strcmp(key, "params")) |
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160 | step->cmd.json = value; |
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161 | else |
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162 | return -1; |
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163 | } |
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164 | |
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165 | return err; |
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166 | } |
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167 | |
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168 | static int og_json_parse_procedure_call(json_t *element, int position, |
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169 | struct og_procedure *proc) |
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170 | { |
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171 | struct og_procedure_step *step; |
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172 | uint32_t err = 0; |
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173 | const char *key; |
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174 | json_t *value; |
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175 | |
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176 | step = &proc->steps[proc->num_steps++]; |
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177 | step->type = OG_STEP_PROCEDURE; |
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178 | step->position = position; |
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179 | |
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180 | json_object_foreach(element, key, value) { |
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181 | if (!strcmp(key, "procedure")) |
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182 | err = og_json_parse_uint64(value, &step->procedure.id); |
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183 | else |
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184 | return -1; |
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185 | } |
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186 | |
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187 | return err; |
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188 | } |
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189 | |
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190 | int og_json_parse_procedure(json_t *element, struct og_procedure *proc) |
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191 | { |
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192 | unsigned int i; |
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193 | json_t *item; |
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194 | int err = 0; |
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195 | |
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196 | if (json_typeof(element) != JSON_ARRAY) |
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197 | return -1; |
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198 | |
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199 | for (i = 0; i < json_array_size(element) && i < OG_PROCEDURE_STEPS_MAX; ++i) { |
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200 | item = json_array_get(element, i); |
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201 | |
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202 | if (json_object_get(item, "command")) |
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203 | err = og_json_parse_procedure_cmd(item, i, proc); |
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204 | else if (json_object_get(item, "procedure")) |
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205 | err = og_json_parse_procedure_call(item, i, proc); |
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206 | else |
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207 | err = -1; |
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208 | |
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209 | if (err) |
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210 | break; |
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211 | } |
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212 | |
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213 | return err; |
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214 | } |
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