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1 | office | 1 | /** |
2 | * @file NCDBProcessOpts.c |
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3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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4 | * |
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5 | * @section LICENSE |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are met: |
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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 | * 2. Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * 3. Neither the name of the author nor the |
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15 | * names of its contributors may be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | #include <stddef.h> |
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31 | |||
32 | #include <misc/balloc.h> |
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33 | |||
34 | #include <ncd/extra/value_utils.h> |
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35 | |||
36 | #include "NCDBProcessOpts.h" |
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37 | |||
38 | int NCDBProcessOpts_Init (NCDBProcessOpts *o, NCDValRef opts_arg, NCDBProcessOpts_func_unknown func_unknown, void *func_unknown_user, NCDModuleInst *i, int blog_channel) |
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39 | { |
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40 | return NCDBProcessOpts_Init2(o, opts_arg, func_unknown, func_unknown_user, i, blog_channel, NULL, NULL); |
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41 | } |
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42 | |||
43 | int NCDBProcessOpts_Init2 (NCDBProcessOpts *o, NCDValRef opts_arg, NCDBProcessOpts_func_unknown func_unknown, void *func_unknown_user, NCDModuleInst *i, int blog_channel, |
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44 | int *out_keep_stdout, int *out_keep_stderr) |
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45 | { |
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46 | if (!NCDVal_IsInvalid(opts_arg) && !NCDVal_IsMap(opts_arg)) { |
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47 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "options must be a map"); |
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48 | goto fail0; |
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49 | } |
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50 | |||
51 | o->username = NULL; |
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52 | o->do_setsid = 0; |
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53 | |||
54 | int keep_stdout = 0; |
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55 | int keep_stderr = 0; |
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56 | |||
57 | if (!NCDVal_IsInvalid(opts_arg)) { |
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58 | for (NCDValMapElem me = NCDVal_MapFirst(opts_arg); !NCDVal_MapElemInvalid(me); me = NCDVal_MapNext(opts_arg, me)) { |
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59 | NCDValRef key = NCDVal_MapElemKey(opts_arg, me); |
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60 | NCDValRef val = NCDVal_MapElemVal(opts_arg, me); |
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61 | |||
62 | if (NCDVal_IsString(key) && NCDVal_StringEquals(key, "keep_stdout")) { |
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63 | if (!ncd_read_boolean(val, &keep_stdout)) { |
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64 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "bad keep_stdout"); |
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65 | goto fail1; |
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66 | } |
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67 | } |
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68 | else if (NCDVal_IsString(key) && NCDVal_StringEquals(key, "keep_stderr")) { |
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69 | if (!ncd_read_boolean(val, &keep_stderr)) { |
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70 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "bad keep_stderr"); |
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71 | goto fail1; |
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72 | } |
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73 | } |
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74 | else if (NCDVal_IsString(key) && NCDVal_StringEquals(key, "do_setsid")) { |
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75 | if (!ncd_read_boolean(val, &o->do_setsid)) { |
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76 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "bad do_setsid"); |
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77 | goto fail1; |
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78 | } |
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79 | } |
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80 | else if (NCDVal_IsString(key) && NCDVal_StringEquals(key, "username")) { |
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81 | if (!NCDVal_IsStringNoNulls(val)) { |
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82 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "username must be a string without nulls"); |
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83 | goto fail1; |
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84 | } |
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85 | o->username = MemRef_StrDup(NCDVal_StringMemRef(val)); |
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86 | if (!o->username) { |
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87 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "MemRef_StrDup failed"); |
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88 | goto fail1; |
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89 | } |
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90 | } |
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91 | else { |
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92 | if (!func_unknown || !func_unknown(func_unknown_user, key, val)) { |
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93 | NCDModuleInst_Backend_Log(i, blog_channel, BLOG_ERROR, "unknown option"); |
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94 | goto fail1; |
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95 | } |
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96 | } |
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97 | } |
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98 | } |
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99 | |||
100 | o->nfds = 0; |
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101 | if (keep_stdout) { |
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102 | o->fds[o->nfds] = 1; |
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103 | o->fds_map[o->nfds++] = 1; |
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104 | } |
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105 | if (keep_stderr) { |
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106 | o->fds[o->nfds] = 2; |
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107 | o->fds_map[o->nfds++] = 2; |
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108 | } |
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109 | o->fds[o->nfds] = -1; |
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110 | |||
111 | if (out_keep_stdout) { |
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112 | *out_keep_stdout = keep_stdout; |
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113 | } |
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114 | if (out_keep_stderr) { |
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115 | *out_keep_stderr = keep_stderr; |
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116 | } |
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117 | |||
118 | return 1; |
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119 | |||
120 | fail1: |
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121 | if (o->username) { |
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122 | BFree(o->username); |
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123 | } |
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124 | fail0: |
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125 | return 0; |
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126 | } |
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127 | |||
128 | void NCDBProcessOpts_InitOld (NCDBProcessOpts *o, int keep_stdout, int keep_stderr, int do_setsid) |
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129 | { |
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130 | o->username = NULL; |
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131 | o->do_setsid = do_setsid; |
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132 | |||
133 | o->nfds = 0; |
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134 | if (keep_stdout) { |
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135 | o->fds[o->nfds] = 1; |
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136 | o->fds_map[o->nfds++] = 1; |
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137 | } |
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138 | if (keep_stderr) { |
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139 | o->fds[o->nfds] = 2; |
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140 | o->fds_map[o->nfds++] = 2; |
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141 | } |
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142 | o->fds[o->nfds] = -1; |
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143 | } |
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144 | |||
145 | void NCDBProcessOpts_Free (NCDBProcessOpts *o) |
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146 | { |
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147 | if (o->username) { |
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148 | BFree(o->username); |
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149 | } |
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150 | } |
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151 | |||
152 | struct BProcess_params NCDBProcessOpts_GetParams (NCDBProcessOpts *o) |
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153 | { |
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154 | struct BProcess_params params; |
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155 | |||
156 | params.username = o->username; |
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157 | params.fds = o->fds; |
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158 | params.fds_map = o->fds_map; |
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159 | params.do_setsid = o->do_setsid; |
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160 | |||
161 | return params; |
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162 | } |