0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <nginx.h>
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11
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12
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13 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle);
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2
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14 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv);
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15 static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv);
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0
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16 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle);
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17 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf);
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18 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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22
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19 static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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0
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20
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21
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10
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22 static ngx_conf_enum_t ngx_debug_points[] = {
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23 { ngx_string("stop"), NGX_DEBUG_POINTS_STOP },
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24 { ngx_string("abort"), NGX_DEBUG_POINTS_ABORT },
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25 { ngx_null_string, 0 }
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26 };
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27
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28
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0
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29 static ngx_command_t ngx_core_commands[] = {
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30
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31 { ngx_string("daemon"),
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32 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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33 ngx_conf_set_flag_slot,
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34 0,
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35 offsetof(ngx_core_conf_t, daemon),
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36 NULL },
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37
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38 { ngx_string("master_process"),
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39 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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40 ngx_conf_set_flag_slot,
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41 0,
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42 offsetof(ngx_core_conf_t, master),
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43 NULL },
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44
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45 { ngx_string("worker_processes"),
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46 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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47 ngx_conf_set_num_slot,
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48 0,
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49 offsetof(ngx_core_conf_t, worker_processes),
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50 NULL },
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51
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10
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52 { ngx_string("debug_points"),
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53 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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54 ngx_conf_set_enum_slot,
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55 0,
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56 offsetof(ngx_core_conf_t, debug_points),
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57 &ngx_debug_points },
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58
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0
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59 #if (NGX_THREADS)
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60
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61 { ngx_string("worker_threads"),
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62 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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63 ngx_conf_set_num_slot,
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64 0,
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65 offsetof(ngx_core_conf_t, worker_threads),
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66 NULL },
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67
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68 { ngx_string("thread_stack_size"),
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69 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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70 ngx_conf_set_size_slot,
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71 0,
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72 offsetof(ngx_core_conf_t, thread_stack_size),
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73 NULL },
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74
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75 #endif
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76
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77 { ngx_string("user"),
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78 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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79 ngx_set_user,
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80 0,
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81 0,
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82 NULL },
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83
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22
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84 { ngx_string("worker_priority"),
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85 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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86 ngx_set_priority,
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87 0,
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88 0,
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89 NULL },
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90
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0
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91 { ngx_string("pid"),
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92 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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93 ngx_conf_set_str_slot,
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94 0,
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95 offsetof(ngx_core_conf_t, pid),
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96 NULL },
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97
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70
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98 { ngx_string("working_directory"),
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99 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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100 ngx_conf_set_str_slot,
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101 0,
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102 offsetof(ngx_core_conf_t, working_directory),
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103 NULL },
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104
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0
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105 ngx_null_command
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106 };
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107
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108
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109 static ngx_core_module_t ngx_core_module_ctx = {
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110 ngx_string("core"),
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111 ngx_core_module_create_conf,
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112 ngx_core_module_init_conf
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113 };
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114
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115
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116 ngx_module_t ngx_core_module = {
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58
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117 NGX_MODULE_V1,
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0
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118 &ngx_core_module_ctx, /* module context */
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119 ngx_core_commands, /* module directives */
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120 NGX_CORE_MODULE, /* module type */
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90
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121 NULL, /* init master */
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0
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122 NULL, /* init module */
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90
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123 NULL, /* init process */
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124 NULL, /* init thread */
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125 NULL, /* exit thread */
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126 NULL, /* exit process */
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127 NULL, /* exit master */
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128 NGX_MODULE_V1_PADDING
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0
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129 };
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130
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131
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132 ngx_uint_t ngx_max_module;
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133
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134
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52
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135 int ngx_cdecl
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48
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136 main(int argc, char *const *argv)
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0
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137 {
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2
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138 ngx_int_t i;
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139 ngx_log_t *log;
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140 ngx_cycle_t *cycle, init_cycle;
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141 ngx_core_conf_t *ccf;
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0
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142
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4
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143 #if (NGX_FREEBSD)
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0
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144 ngx_debug_init();
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145 #endif
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146
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147 /* TODO */ ngx_max_sockets = -1;
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148
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149 ngx_time_init();
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150
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4
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151 #if (NGX_PCRE)
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0
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152 ngx_regex_init();
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153 #endif
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154
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155 ngx_pid = ngx_getpid();
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156
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50
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157 log = ngx_log_init();
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158 if (log == NULL) {
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0
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159 return 1;
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160 }
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161
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90
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162 /* STUB */
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0
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163 #if (NGX_OPENSSL)
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164 ngx_ssl_init(log);
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165 #endif
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166
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167 /* init_cycle->log is required for signal handlers and ngx_getopt() */
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168
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169 ngx_memzero(&init_cycle, sizeof(ngx_cycle_t));
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170 init_cycle.log = log;
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171 ngx_cycle = &init_cycle;
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172
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50
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173 init_cycle.pool = ngx_create_pool(1024, log);
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174 if (init_cycle.pool == NULL) {
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0
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175 return 1;
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176 }
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177
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4
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178 if (ngx_save_argv(&init_cycle, argc, argv) == NGX_ERROR) {
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2
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179 return 1;
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180 }
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181
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4
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182 if (ngx_getopt(&init_cycle, argc, ngx_argv) == NGX_ERROR) {
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0
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183 return 1;
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184 }
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185
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186 if (ngx_test_config) {
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187 log->log_level = NGX_LOG_INFO;
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188 }
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189
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190 if (ngx_os_init(log) == NGX_ERROR) {
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191 return 1;
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192 }
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193
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194 if (ngx_add_inherited_sockets(&init_cycle) == NGX_ERROR) {
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195 return 1;
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196 }
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197
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198 ngx_max_module = 0;
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199 for (i = 0; ngx_modules[i]; i++) {
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200 ngx_modules[i]->index = ngx_max_module++;
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201 }
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202
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203 cycle = ngx_init_cycle(&init_cycle);
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204 if (cycle == NULL) {
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205 if (ngx_test_config) {
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206 ngx_log_error(NGX_LOG_EMERG, log, 0,
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10
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207 "the configuration file \"%s\" test failed",
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0
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208 init_cycle.conf_file.data);
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209 }
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210
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211 return 1;
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212 }
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213
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214 if (ngx_test_config) {
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215 ngx_log_error(NGX_LOG_INFO, log, 0,
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10
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216 "the configuration file \"%s\" was tested successfully",
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4
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217 cycle->conf_file.data);
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0
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218 return 0;
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219 }
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220
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221 ngx_os_status(cycle->log);
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222
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223 ngx_cycle = cycle;
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224
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225 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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226
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227 ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE;
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228
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10
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229 #if (NGX_WIN32)
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0
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230
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231 #if 0
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232
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233 TODO:
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234
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235 if (ccf->run_as_service) {
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236 if (ngx_service(cycle->log) == NGX_ERROR) {
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237 return 1;
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238 }
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239
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240 return 0;
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241 }
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242 #endif
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243
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244 #else
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245
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88
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246 if (ngx_init_signals(cycle->log) == NGX_ERROR) {
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247 return 1;
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248 }
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249
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0
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250 if (!ngx_inherited && ccf->daemon) {
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251 if (ngx_daemon(cycle->log) == NGX_ERROR) {
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252 return 1;
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253 }
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254
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255 ngx_daemonized = 1;
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256 }
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257
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258 if (ngx_create_pidfile(cycle, NULL) == NGX_ERROR) {
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259 return 1;
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260 }
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261
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262 #endif
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263
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264 if (ngx_process == NGX_PROCESS_MASTER) {
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2
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265 ngx_master_process_cycle(cycle);
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0
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266
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267 } else {
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2
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268 ngx_single_process_cycle(cycle);
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0
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269 }
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270
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271 return 0;
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272 }
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273
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274
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48
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275 static ngx_int_t
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276 ngx_add_inherited_sockets(ngx_cycle_t *cycle)
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0
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277 {
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50
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278 u_char *p, *v, *inherited;
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279 ngx_int_t s;
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280 ngx_listening_t *ls;
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0
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281
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282 inherited = (u_char *) getenv(NGINX_VAR);
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283
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284 if (inherited == NULL) {
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285 return NGX_OK;
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286 }
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287
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10
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288 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
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0
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289 "using inherited sockets from \"%s\"", inherited);
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290
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10
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291 if (ngx_array_init(&cycle->listening, cycle->pool, 10,
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292 sizeof(ngx_listening_t)) == NGX_ERROR)
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293 {
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294 return NGX_ERROR;
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295 }
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0
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296
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297 for (p = inherited, v = p; *p; p++) {
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298 if (*p == ':' || *p == ';') {
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299 s = ngx_atoi(v, p - v);
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300 if (s == NGX_ERROR) {
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301 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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86
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302 "invalid socket number \"%s\" in " NGINX_VAR
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303 " environment variable, ignoring the rest"
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304 " of the variable", v);
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0
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305 break;
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306 }
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307
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308 v = p + 1;
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309
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50
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310 ls = ngx_array_push(&cycle->listening);
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311 if (ls == NULL) {
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0
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312 return NGX_ERROR;
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313 }
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314
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72
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315 ngx_memzero(ls, sizeof(ngx_listening_t));
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316
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50
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317 ls->fd = (ngx_socket_t) s;
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0
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318 }
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319 }
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320
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321 ngx_inherited = 1;
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322
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323 return ngx_set_inherited_sockets(cycle);
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324 }
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325
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326
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327 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv)
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328 {
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10
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329 char *env[3], *var;
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330 u_char *p;
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0
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331 ngx_uint_t i;
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332 ngx_pid_t pid;
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333 ngx_exec_ctx_t ctx;
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334 ngx_listening_t *ls;
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335
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336 ctx.path = argv[0];
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337 ctx.name = "new binary process";
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338 ctx.argv = argv;
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339
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340 var = ngx_alloc(sizeof(NGINX_VAR)
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50
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341 + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2,
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0
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342 cycle->log);
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343
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10
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344 p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR));
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0
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345
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346 ls = cycle->listening.elts;
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347 for (i = 0; i < cycle->listening.nelts; i++) {
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10
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348 p = ngx_sprintf(p, "%ud;", ls[i].fd);
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0
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349 }
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350
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10
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351 *p = '\0';
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352
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0
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353 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "inherited: %s", var);
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354
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355 env[0] = var;
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2
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356
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357 #if (NGX_SETPROCTITLE_USES_ENV)
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358
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10
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359 /* allocate the spare 300 bytes for the new binary process title */
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2
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360
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361 env[1] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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362 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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363 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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364 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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365 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
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366
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367 env[2] = NULL;
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368
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369 #else
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370
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0
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371 env[1] = NULL;
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2
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372
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373 #endif
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374
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0
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375 ctx.envp = (char *const *) &env;
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376
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377 pid = ngx_execute(cycle, &ctx);
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378
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379 ngx_free(var);
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380
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381 return pid;
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382 }
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383
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384
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2
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385 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
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0
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386 {
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387 ngx_int_t i;
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388
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2
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389 for (i = 1; i < argc; i++) {
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390 if (argv[i][0] != '-') {
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0
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391 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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392 "invalid option: \"%s\"", argv[i]);
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0
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393 return NGX_ERROR;
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394 }
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395
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2
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396 switch (argv[i][1]) {
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0
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397
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398 case 't':
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399 ngx_test_config = 1;
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400 break;
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401
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402 case 'c':
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2
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403 if (argv[i + 1] == NULL) {
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0
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404 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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405 "the option: \"%s\" requires file name",
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2
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406 argv[i]);
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0
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407 return NGX_ERROR;
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408 }
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409
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2
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410 cycle->conf_file.data = (u_char *) argv[++i];
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0
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411 cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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412 break;
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413
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414 default:
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415 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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416 "invalid option: \"%s\"", argv[i]);
|
0
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417 return NGX_ERROR;
|
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418 }
|
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419 }
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420
|
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421 if (cycle->conf_file.data == NULL) {
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422 cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1;
|
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423 cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
|
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424 }
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425
|
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426 if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
|
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427 return NGX_ERROR;
|
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428 }
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429
|
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430 return NGX_OK;
|
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431 }
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432
|
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433
|
48
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434 static ngx_int_t
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435 ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv)
|
2
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436 {
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50
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437 #if (NGX_FREEBSD)
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438
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439 ngx_os_argv = (char **) argv;
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440 ngx_argc = argc;
|
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441 ngx_argv = (char **) argv;
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442
|
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443 #else
|
2
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444 size_t len;
|
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445 ngx_int_t i;
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446
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447 ngx_os_argv = (char **) argv;
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448 ngx_argc = argc;
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449
|
50
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450 ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log);
|
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451 if (ngx_argv == NULL) {
|
2
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452 return NGX_ERROR;
|
|
453 }
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454
|
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455 for (i = 0; i < argc; i++) {
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456 len = ngx_strlen(argv[i]) + 1;
|
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457
|
50
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458 ngx_argv[i] = ngx_alloc(len, cycle->log);
|
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459 if (ngx_argv[i] == NULL) {
|
2
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460 return NGX_ERROR;
|
|
461 }
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462
|
66
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463 (void) ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len);
|
2
|
464 }
|
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465
|
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466 ngx_argv[i] = NULL;
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467
|
|
468 #endif
|
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469
|
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470 return NGX_OK;
|
|
471 }
|
|
472
|
|
473
|
48
|
474 static void *
|
|
475 ngx_core_module_create_conf(ngx_cycle_t *cycle)
|
0
|
476 {
|
|
477 ngx_core_conf_t *ccf;
|
|
478
|
50
|
479 ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t));
|
|
480 if (ccf == NULL) {
|
0
|
481 return NULL;
|
|
482 }
|
28
|
483
|
|
484 /*
|
|
485 * set by pcalloc()
|
0
|
486 *
|
28
|
487 * ccf->pid = NULL;
|
|
488 * ccf->newpid = NULL;
|
|
489 * ccf->priority = 0;
|
0
|
490 */
|
28
|
491
|
0
|
492 ccf->daemon = NGX_CONF_UNSET;
|
|
493 ccf->master = NGX_CONF_UNSET;
|
|
494 ccf->worker_processes = NGX_CONF_UNSET;
|
10
|
495 ccf->debug_points = NGX_CONF_UNSET;
|
66
|
496 ccf->user = (ngx_uid_t) NGX_CONF_UNSET_UINT;
|
|
497 ccf->group = (ngx_gid_t) NGX_CONF_UNSET_UINT;
|
0
|
498 #if (NGX_THREADS)
|
|
499 ccf->worker_threads = NGX_CONF_UNSET;
|
10
|
500 ccf->thread_stack_size = NGX_CONF_UNSET_SIZE;
|
0
|
501 #endif
|
|
502
|
|
503 return ccf;
|
|
504 }
|
|
505
|
|
506
|
48
|
507 static char *
|
|
508 ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
|
0
|
509 {
|
|
510 ngx_core_conf_t *ccf = conf;
|
|
511
|
10
|
512 #if !(NGX_WIN32)
|
0
|
513 struct passwd *pwd;
|
|
514 struct group *grp;
|
|
515 #endif
|
|
516
|
|
517 ngx_conf_init_value(ccf->daemon, 1);
|
|
518 ngx_conf_init_value(ccf->master, 1);
|
|
519 ngx_conf_init_value(ccf->worker_processes, 1);
|
10
|
520 ngx_conf_init_value(ccf->debug_points, 0);
|
0
|
521
|
|
522 #if (NGX_THREADS)
|
|
523 ngx_conf_init_value(ccf->worker_threads, 0);
|
|
524 ngx_threads_n = ccf->worker_threads;
|
|
525 ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024);
|
|
526 #endif
|
|
527
|
10
|
528 #if !(NGX_WIN32)
|
0
|
529
|
66
|
530 if (ccf->user == (uid_t) NGX_CONF_UNSET_UINT && geteuid() == 0) {
|
0
|
531
|
4
|
532 pwd = getpwnam(NGX_USER);
|
0
|
533 if (pwd == NULL) {
|
|
534 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
4
|
535 "getpwnam(\"" NGX_USER "\") failed");
|
0
|
536 return NGX_CONF_ERROR;
|
|
537 }
|
|
538
|
22
|
539 ccf->username = NGX_USER;
|
0
|
540 ccf->user = pwd->pw_uid;
|
|
541
|
4
|
542 grp = getgrnam(NGX_GROUP);
|
0
|
543 if (grp == NULL) {
|
|
544 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
4
|
545 "getgrnam(\"" NGX_GROUP "\") failed");
|
0
|
546 return NGX_CONF_ERROR;
|
|
547 }
|
|
548
|
|
549 ccf->group = grp->gr_gid;
|
|
550 }
|
|
551
|
|
552 if (ccf->pid.len == 0) {
|
|
553 ccf->pid.len = sizeof(NGX_PID_PATH) - 1;
|
2
|
554 ccf->pid.data = (u_char *) NGX_PID_PATH;
|
0
|
555 }
|
|
556
|
|
557 if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
|
|
558 return NGX_CONF_ERROR;
|
|
559 }
|
|
560
|
|
561 ccf->newpid.len = ccf->pid.len + sizeof(NGX_NEWPID_EXT);
|
|
562
|
50
|
563 ccf->newpid.data = ngx_palloc(cycle->pool, ccf->newpid.len);
|
|
564 if (ccf->newpid.data == NULL) {
|
0
|
565 return NGX_CONF_ERROR;
|
|
566 }
|
|
567
|
|
568 ngx_memcpy(ngx_cpymem(ccf->newpid.data, ccf->pid.data, ccf->pid.len),
|
|
569 NGX_NEWPID_EXT, sizeof(NGX_NEWPID_EXT));
|
|
570
|
|
571 #endif
|
|
572
|
|
573 return NGX_CONF_OK;
|
|
574 }
|
|
575
|
|
576
|
48
|
577 static char *
|
|
578 ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
0
|
579 {
|
10
|
580 #if (NGX_WIN32)
|
0
|
581
|
|
582 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
583 "\"user\" is not supported, ignored");
|
|
584
|
|
585 return NGX_CONF_OK;
|
|
586
|
|
587 #else
|
|
588
|
|
589 ngx_core_conf_t *ccf = conf;
|
|
590
|
4
|
591 char *group;
|
0
|
592 struct passwd *pwd;
|
|
593 struct group *grp;
|
|
594 ngx_str_t *value;
|
|
595
|
66
|
596 if (ccf->user != (uid_t) NGX_CONF_UNSET_UINT) {
|
0
|
597 return "is duplicate";
|
|
598 }
|
|
599
|
4
|
600 if (geteuid() != 0) {
|
|
601 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
602 "the \"user\" directive makes sense only "
|
|
603 "if the master process runs "
|
|
604 "with super-user privileges, ignored");
|
|
605 return NGX_CONF_OK;
|
|
606 }
|
|
607
|
0
|
608 value = (ngx_str_t *) cf->args->elts;
|
|
609
|
22
|
610 ccf->username = (char *) value[1].data;
|
|
611
|
0
|
612 pwd = getpwnam((const char *) value[1].data);
|
|
613 if (pwd == NULL) {
|
|
614 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
2
|
615 "getpwnam(\"%s\") failed", value[1].data);
|
0
|
616 return NGX_CONF_ERROR;
|
|
617 }
|
|
618
|
|
619 ccf->user = pwd->pw_uid;
|
|
620
|
4
|
621 group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data);
|
0
|
622
|
4
|
623 grp = getgrnam(group);
|
0
|
624 if (grp == NULL) {
|
|
625 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
4
|
626 "getgrnam(\"%s\") failed", group);
|
0
|
627 return NGX_CONF_ERROR;
|
|
628 }
|
|
629
|
|
630 ccf->group = grp->gr_gid;
|
|
631
|
|
632 return NGX_CONF_OK;
|
|
633
|
|
634 #endif
|
|
635 }
|
22
|
636
|
|
637
|
48
|
638 static char *
|
|
639 ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
22
|
640 {
|
|
641 ngx_core_conf_t *ccf = conf;
|
|
642
|
|
643 ngx_str_t *value;
|
|
644 ngx_uint_t n, minus;
|
|
645
|
|
646 if (ccf->priority != 0) {
|
|
647 return "is duplicate";
|
|
648 }
|
|
649
|
|
650 value = cf->args->elts;
|
|
651
|
|
652 if (value[1].data[0] == '-') {
|
|
653 n = 1;
|
|
654 minus = 1;
|
|
655
|
|
656 } else if (value[1].data[0] == '+') {
|
|
657 n = 1;
|
|
658 minus = 0;
|
|
659
|
|
660 } else {
|
|
661 n = 0;
|
|
662 minus = 0;
|
|
663 }
|
|
664
|
|
665 ccf->priority = ngx_atoi(&value[1].data[n], value[1].len - n);
|
|
666 if (ccf->priority == NGX_ERROR) {
|
|
667 return "invalid number";
|
|
668 }
|
|
669
|
|
670 if (minus) {
|
|
671 ccf->priority = -ccf->priority;
|
|
672 }
|
|
673
|
|
674 return NGX_CONF_OK;
|
|
675 }
|