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1 /* |
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2 zip_error.c -- zip_error_t helper functions |
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3 Copyright (C) 1999-2015 Dieter Baron and Thomas Klausner |
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4 |
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5 This file is part of libzip, a library to manipulate ZIP archives. |
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6 The authors can be contacted at <libzip@nih.at> |
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7 |
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8 Redistribution and use in source and binary forms, with or without |
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9 modification, are permitted provided that the following conditions |
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10 are met: |
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11 1. Redistributions of source code must retain the above copyright |
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12 notice, this list of conditions and the following disclaimer. |
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13 2. Redistributions in binary form must reproduce the above copyright |
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14 notice, this list of conditions and the following disclaimer in |
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15 the documentation and/or other materials provided with the |
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16 distribution. |
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17 3. The names of the authors may not be used to endorse or promote |
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18 products derived from this software without specific prior |
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19 written permission. |
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20 |
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21 THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
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22 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
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25 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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26 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
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27 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
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29 IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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30 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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31 IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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32 */ |
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33 |
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34 #include <stdlib.h> |
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35 |
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36 #include "zipint.h" |
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37 |
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38 |
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39 ZIP_EXTERN int |
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40 zip_error_code_system(const zip_error_t *error) { |
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41 return error->sys_err; |
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42 } |
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43 |
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44 |
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45 ZIP_EXTERN int |
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46 zip_error_code_zip(const zip_error_t *error) { |
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47 return error->zip_err; |
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48 } |
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49 |
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50 |
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51 ZIP_EXTERN void |
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52 zip_error_fini(zip_error_t *err) |
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53 { |
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54 free(err->str); |
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55 err->str = NULL; |
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56 } |
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57 |
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58 |
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59 ZIP_EXTERN void |
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60 zip_error_init(zip_error_t *err) |
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61 { |
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62 err->zip_err = ZIP_ER_OK; |
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63 err->sys_err = 0; |
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64 err->str = NULL; |
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65 } |
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66 |
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67 ZIP_EXTERN void |
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68 zip_error_init_with_code(zip_error_t *error, int ze) |
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69 { |
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70 zip_error_init(error); |
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71 error->zip_err = ze; |
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72 switch (zip_error_system_type(error)) { |
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73 case ZIP_ET_SYS: |
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74 error->sys_err = errno; |
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75 break; |
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76 |
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77 default: |
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78 error->sys_err = 0; |
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79 break; |
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80 } |
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81 } |
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82 |
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83 |
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84 ZIP_EXTERN int |
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85 zip_error_system_type(const zip_error_t *error) { |
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86 if (error->zip_err < 0 || error->zip_err >= _zip_nerr_str) |
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87 return ZIP_ET_NONE; |
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88 |
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89 return _zip_err_type[error->zip_err]; |
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90 } |
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91 |
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92 |
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93 void |
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94 _zip_error_clear(zip_error_t *err) |
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95 { |
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96 if (err == NULL) |
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97 return; |
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98 |
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99 err->zip_err = ZIP_ER_OK; |
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100 err->sys_err = 0; |
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101 } |
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102 |
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103 |
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104 void |
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105 _zip_error_copy(zip_error_t *dst, const zip_error_t *src) |
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106 { |
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107 dst->zip_err = src->zip_err; |
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108 dst->sys_err = src->sys_err; |
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109 } |
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110 |
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111 |
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112 void |
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113 _zip_error_get(const zip_error_t *err, int *zep, int *sep) |
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114 { |
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115 if (zep) |
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116 *zep = err->zip_err; |
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117 if (sep) { |
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118 if (zip_error_system_type(err) != ZIP_ET_NONE) |
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119 *sep = err->sys_err; |
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120 else |
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121 *sep = 0; |
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122 } |
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123 } |
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124 |
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125 |
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126 void |
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127 zip_error_set(zip_error_t *err, int ze, int se) |
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128 { |
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129 if (err) { |
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130 err->zip_err = ze; |
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131 err->sys_err = se; |
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132 } |
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133 } |
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134 |
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135 |
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136 void |
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137 _zip_error_set_from_source(zip_error_t *err, zip_source_t *src) |
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138 { |
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139 _zip_error_copy(err, zip_source_error(src)); |
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140 } |
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141 |
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142 |
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143 zip_int64_t |
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144 zip_error_to_data(const zip_error_t *error, void *data, zip_uint64_t length) |
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145 { |
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146 int *e = (int *)data; |
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147 |
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148 if (length < sizeof(int)*2) { |
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149 return -1; |
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150 } |
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151 |
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152 e[0] = zip_error_code_zip(error); |
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153 e[1] = zip_error_code_system(error); |
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154 return sizeof(int)*2; |
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155 } |
