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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
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10
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42
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11 u_char *
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12 ngx_cpystrn(u_char *dst, u_char *src, size_t n)
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0
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13 {
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14 if (n == 0) {
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15 return dst;
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16 }
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17
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66
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18 for ( /* void */ ; --n; dst++, src++) {
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0
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19 *dst = *src;
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20
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21 if (*dst == '\0') {
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22 return dst;
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23 }
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24 }
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25
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26 *dst = '\0';
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27
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28 return dst;
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29 }
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30
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31
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42
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32 u_char *
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33 ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src)
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34
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34 {
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35 u_char *dst;
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36
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50
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37 dst = ngx_palloc(pool, src->len);
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38 if (dst == NULL) {
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34
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39 return NULL;
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40 }
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41
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42 ngx_memcpy(dst, src->data, src->len);
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43
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44 return dst;
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45 }
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46
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47
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4
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48 /*
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49 * supported formats:
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22
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50 * %[0][width][x][X]O off_t
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10
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51 * %[0][width]T time_t
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52 * %[0][width][u][x|X]z ssize_t/size_t
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53 * %[0][width][u][x|X]d int/u_int
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54 * %[0][width][u][x|X]l long
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55 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
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56 * %[0][width][u][x|X]D int32_t/uint32_t
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57 * %[0][width][u][x|X]L int64_t/uint64_t
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44
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58 * %[0][width|m][u][x|X]A ngx_atomic_int_t/ngx_atomic_uint_t
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10
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59 * %P ngx_pid_t
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106
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60 * %M ngx_msec_t
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10
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61 * %r rlim_t
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62 * %p pointer
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63 * %V pointer to ngx_str_t
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64 * %s null-terminated string
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65 * %Z '\0'
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74
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66 * %N '\n'
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10
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67 * %c char
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68 * %% %
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4
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69 *
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10
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70 * reserved:
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71 * %t ptrdiff_t
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72 * %S null-teminated wchar string
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73 * %C wchar
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4
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74 */
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75
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10
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76
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52
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77 u_char * ngx_cdecl
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42
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78 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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79 {
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80 u_char *p;
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81 va_list args;
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82
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83 va_start(args, fmt);
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84 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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85 va_end(args);
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86
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87 return p;
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88 }
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89
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90
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52
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91 u_char * ngx_cdecl
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42
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92 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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93 {
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10
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94 u_char *p;
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95 va_list args;
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96
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97 va_start(args, fmt);
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98 p = ngx_vsnprintf(buf, max, fmt, args);
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99 va_end(args);
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100
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101 return p;
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102 }
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103
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4
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104
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42
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105 u_char *
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106 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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107 {
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320
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108 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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28
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109 /*
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110 * really we need temp[NGX_INT64_LEN] only,
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42
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111 * but icc issues the warning
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28
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112 */
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320
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113 int d;
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114 size_t len;
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115 uint32_t ui32;
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116 int64_t i64;
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117 uint64_t ui64;
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118 ngx_msec_t ms;
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119 ngx_uint_t width, sign, hexadecimal, max_width;
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120 ngx_variable_value_t *v;
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121 static u_char hex[] = "0123456789abcdef";
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122 static u_char HEX[] = "0123456789ABCDEF";
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4
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123
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10
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124 if (max == 0) {
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125 return buf;
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126 }
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127
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128 last = buf + max;
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129
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130 while (*fmt && buf < last) {
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131
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132 /*
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133 * "buf < last" means that we could copy at least one character:
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134 * the plain character, "%%", "%c", and minus without the checking
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135 */
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136
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4
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137 if (*fmt == '%') {
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138
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10
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139 i64 = 0;
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140 ui64 = 0;
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141
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142 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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143 width = 0;
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144 sign = 1;
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145 hexadecimal = 0;
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42
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146 max_width = 0;
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4
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147
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26
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148 p = temp + NGX_INT64_LEN;
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4
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149
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150 while (*fmt >= '0' && *fmt <= '9') {
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151 width = width * 10 + *fmt++ - '0';
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152 }
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153
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154
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155 for ( ;; ) {
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156 switch (*fmt) {
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157
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158 case 'u':
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159 sign = 0;
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160 fmt++;
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161 continue;
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162
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16
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163 case 'm':
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42
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164 max_width = 1;
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16
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165 fmt++;
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166 continue;
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167
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10
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168 case 'X':
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169 hexadecimal = 2;
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170 sign = 0;
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171 fmt++;
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172 continue;
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173
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4
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174 case 'x':
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175 hexadecimal = 1;
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10
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176 sign = 0;
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4
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177 fmt++;
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178 continue;
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179
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180 default:
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181 break;
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182 }
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183
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184 break;
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185 }
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186
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187
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188 switch (*fmt) {
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189
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10
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190 case 'V':
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320
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191 v = va_arg(args, ngx_variable_value_t *);
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4
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192
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320
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193 len = v->len;
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122
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194 len = (buf + len < last) ? len : (size_t) (last - buf);
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195
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320
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196 buf = ngx_cpymem(buf, v->data, len);
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10
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197 fmt++;
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4
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198
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10
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199 continue;
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4
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200
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201 case 's':
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10
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202 p = va_arg(args, u_char *);
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4
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203
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10
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204 while (*p && buf < last) {
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4
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205 *buf++ = *p++;
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206 }
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207 fmt++;
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208
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209 continue;
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210
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10
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211 case 'O':
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212 i64 = (int64_t) va_arg(args, off_t);
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213 sign = 1;
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214 break;
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215
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216 case 'P':
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217 i64 = (int64_t) va_arg(args, ngx_pid_t);
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218 sign = 1;
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219 break;
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220
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221 case 'T':
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222 i64 = (int64_t) va_arg(args, time_t);
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223 sign = 1;
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224 break;
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225
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106
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226 case 'M':
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110
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227 ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
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228 if ((ngx_msec_int_t) ms == -1) {
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229 sign = 1;
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230 i64 = -1;
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231 } else {
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232 sign = 0;
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233 ui64 = (uint64_t) ms;
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234 }
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106
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235 break;
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236
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10
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237 case 'z':
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238 if (sign) {
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239 i64 = (int64_t) va_arg(args, ssize_t);
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240 } else {
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241 ui64 = (uint64_t) va_arg(args, size_t);
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242 }
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243 break;
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244
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245 case 'i':
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246 if (sign) {
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247 i64 = (int64_t) va_arg(args, ngx_int_t);
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248 } else {
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249 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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250 }
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42
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251
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252 if (max_width) {
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253 width = NGX_INT_T_LEN;
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254 }
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255
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10
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256 break;
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257
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258 case 'd':
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259 if (sign) {
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260 i64 = (int64_t) va_arg(args, int);
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261 } else {
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262 ui64 = (uint64_t) va_arg(args, u_int);
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263 }
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264 break;
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265
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266 case 'l':
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267 if (sign) {
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268 i64 = (int64_t) va_arg(args, long);
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269 } else {
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270 ui64 = (uint64_t) va_arg(args, u_long);
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271 }
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272 break;
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273
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274 case 'D':
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275 if (sign) {
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276 i64 = (int64_t) va_arg(args, int32_t);
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277 } else {
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278 ui64 = (uint64_t) va_arg(args, uint32_t);
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279 }
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280 break;
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281
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282 case 'L':
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283 if (sign) {
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284 i64 = va_arg(args, int64_t);
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285 } else {
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286 ui64 = va_arg(args, uint64_t);
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287 }
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288 break;
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289
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42
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290 case 'A':
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291 if (sign) {
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292 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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293 } else {
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44
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294 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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295 }
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296
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297 if (max_width) {
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298 width = NGX_ATOMIC_T_LEN;
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299 }
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300
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301 break;
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302
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10
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303 #if !(NGX_WIN32)
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304 case 'r':
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305 i64 = (int64_t) va_arg(args, rlim_t);
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306 sign = 1;
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307 break;
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308 #endif
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309
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310 case 'p':
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311 ui64 = (uintptr_t) va_arg(args, void *);
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312 hexadecimal = 2;
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313 sign = 0;
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314 zero = '0';
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162
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315 width = NGX_PTR_SIZE * 2;
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10
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316 break;
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317
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6
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318 case 'c':
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10
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319 d = va_arg(args, int);
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6
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320 *buf++ = (u_char) (d & 0xff);
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321 fmt++;
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322
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323 continue;
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324
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10
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325 case 'Z':
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326 *buf++ = '\0';
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327 fmt++;
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328
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329 continue;
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330
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74
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331 case 'N':
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332 #if (NGX_WIN32)
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333 *buf++ = CR;
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334 #endif
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335 *buf++ = LF;
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336 fmt++;
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337
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338 continue;
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339
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4
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340 case '%':
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341 *buf++ = '%';
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342 fmt++;
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343
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344 continue;
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345
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346 default:
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347 *buf++ = *fmt++;
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348
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349 continue;
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350 }
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351
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10
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352 if (sign) {
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353 if (i64 < 0) {
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354 *buf++ = '-';
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355 ui64 = (uint64_t) -i64;
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356
|
|
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357 } else {
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358 ui64 = (uint64_t) i64;
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359 }
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360 }
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361
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362 if (hexadecimal == 1) {
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363 do {
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364
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365 /* the "(uint32_t)" cast disables the BCC's warning */
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366 *--p = hex[(uint32_t) (ui64 & 0xf)];
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367
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|
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368 } while (ui64 >>= 4);
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369
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370 } else if (hexadecimal == 2) {
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371 do {
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372
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|
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373 /* the "(uint32_t)" cast disables the BCC's warning */
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374 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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375
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|
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376 } while (ui64 >>= 4);
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377
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|
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378 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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379
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380 /*
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381 * To divide 64-bit number and to find the remainder
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382 * on the x86 platform gcc and icc call the libc functions
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383 * [u]divdi3() and [u]moddi3(), they call another function
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42
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384 * in its turn. On FreeBSD it is the qdivrem() function,
|
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10
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385 * its source code is about 170 lines of the code.
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386 * The glibc counterpart is about 150 lines of the code.
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387 *
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42
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388 * For 32-bit numbers and some divisors gcc and icc use
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389 * the inlined multiplication and shifts. For example,
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390 * unsigned "i32 / 10" is compiled to
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391 *
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392 * (i32 * 0xCCCCCCCD) >> 35
|
|
10
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393 */
|
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394
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|
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395 ui32 = (uint32_t) ui64;
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|
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396
|
|
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397 do {
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398 *--p = (u_char) (ui32 % 10 + '0');
|
|
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399 } while (ui32 /= 10);
|
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400
|
|
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401 } else {
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402 do {
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403 *--p = (u_char) (ui64 % 10 + '0');
|
|
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404 } while (ui64 /= 10);
|
|
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405 }
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406
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26
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407 len = (temp + NGX_INT64_LEN) - p;
|
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4
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408
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10
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409 while (len++ < width && buf < last) {
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410 *buf++ = zero;
|
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4
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411 }
|
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412
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26
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413 len = (temp + NGX_INT64_LEN) - p;
|
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10
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414 if (buf + len > last) {
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415 len = last - buf;
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416 }
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417
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|
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418 buf = ngx_cpymem(buf, p, len);
|
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4
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419
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|
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420 fmt++;
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421
|
|
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422 } else {
|
|
|
423 *buf++ = *fmt++;
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|
|
424 }
|
|
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425 }
|
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426
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|
|
427 return buf;
|
|
|
428 }
|
|
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429
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|
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430
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286
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431 /*
|
|
|
432 * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII string only,
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|
|
433 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
|
|
|
434 * to avoid libc locale overhead. Besides, we use the ngx_uint_t's
|
|
|
435 * instead of the u_char's, because they are slightly faster.
|
|
|
436 */
|
|
|
437
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|
|
438 ngx_int_t
|
|
|
439 ngx_strcasecmp(u_char *s1, u_char *s2)
|
|
|
440 {
|
|
|
441 ngx_uint_t c1, c2;
|
|
|
442
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|
|
443 for ( ;; ) {
|
|
|
444 c1 = (ngx_uint_t) *s1++;
|
|
|
445 c2 = (ngx_uint_t) *s2++;
|
|
|
446
|
|
|
447 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
448 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
449
|
|
|
450 if (c1 == c2) {
|
|
|
451
|
|
|
452 if (c1) {
|
|
|
453 continue;
|
|
|
454 }
|
|
|
455
|
|
|
456 return 0;
|
|
|
457 }
|
|
|
458
|
|
|
459 return c1 - c2;
|
|
|
460 }
|
|
|
461 }
|
|
|
462
|
|
|
463
|
|
|
464 ngx_int_t
|
|
|
465 ngx_strncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
|
466 {
|
|
|
467 ngx_uint_t c1, c2;
|
|
|
468
|
|
|
469 while (n) {
|
|
|
470 c1 = (ngx_uint_t) *s1++;
|
|
|
471 c2 = (ngx_uint_t) *s2++;
|
|
|
472
|
|
|
473 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
474 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
475
|
|
|
476 if (c1 == c2) {
|
|
|
477
|
|
|
478 if (c1) {
|
|
|
479 n--;
|
|
|
480 continue;
|
|
|
481 }
|
|
|
482
|
|
|
483 return 0;
|
|
|
484 }
|
|
|
485
|
|
|
486 return c1 - c2;
|
|
|
487 }
|
|
|
488
|
|
|
489 return 0;
|
|
|
490 }
|
|
|
491
|
|
|
492
|
|
42
|
493 ngx_int_t
|
|
|
494 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
|
495 {
|
|
|
496 if (n == 0) {
|
|
|
497 return 0;
|
|
|
498 }
|
|
|
499
|
|
|
500 n--;
|
|
|
501
|
|
|
502 for ( ;; ) {
|
|
|
503 if (s1[n] != s2[n]) {
|
|
|
504 return s1[n] - s2[n];
|
|
|
505 }
|
|
|
506
|
|
|
507 if (n == 0) {
|
|
|
508 return 0;
|
|
|
509 }
|
|
|
510
|
|
|
511 n--;
|
|
|
512 }
|
|
|
513 }
|
|
|
514
|
|
|
515
|
|
42
|
516 ngx_int_t
|
|
|
517 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
518 {
|
|
|
519 u_char c1, c2;
|
|
|
520
|
|
|
521 if (n == 0) {
|
|
|
522 return 0;
|
|
|
523 }
|
|
|
524
|
|
|
525 n--;
|
|
|
526
|
|
|
527 for ( ;; ) {
|
|
|
528 c1 = s1[n];
|
|
|
529 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
530 c1 -= 'a' - 'A';
|
|
|
531 }
|
|
|
532
|
|
|
533 c2 = s2[n];
|
|
|
534 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
535 c2 -= 'a' - 'A';
|
|
|
536 }
|
|
|
537
|
|
|
538 if (c1 != c2) {
|
|
|
539 return c1 - c2;
|
|
|
540 }
|
|
|
541
|
|
|
542 if (n == 0) {
|
|
|
543 return 0;
|
|
|
544 }
|
|
|
545
|
|
|
546 n--;
|
|
|
547 }
|
|
|
548 }
|
|
|
549
|
|
|
550
|
|
42
|
551 ngx_int_t
|
|
274
|
552 ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
|
|
|
553 {
|
|
|
554 size_t n;
|
|
|
555 ngx_int_t m, z;
|
|
|
556
|
|
|
557 if (n1 <= n2) {
|
|
|
558 n = n1;
|
|
|
559 z = -1;
|
|
|
560
|
|
|
561 } else {
|
|
|
562 n = n2;
|
|
|
563 z = 1;
|
|
|
564 }
|
|
|
565
|
|
|
566 m = ngx_memcmp(s1, s2, n);
|
|
|
567
|
|
|
568 if (m || n1 == n2) {
|
|
|
569 return m;
|
|
|
570 }
|
|
|
571
|
|
|
572 return z;
|
|
|
573 }
|
|
|
574
|
|
|
575
|
|
|
576 ngx_int_t
|
|
42
|
577 ngx_atoi(u_char *line, size_t n)
|
|
0
|
578 {
|
|
|
579 ngx_int_t value;
|
|
|
580
|
|
|
581 if (n == 0) {
|
|
|
582 return NGX_ERROR;
|
|
|
583 }
|
|
|
584
|
|
|
585 for (value = 0; n--; line++) {
|
|
|
586 if (*line < '0' || *line > '9') {
|
|
|
587 return NGX_ERROR;
|
|
|
588 }
|
|
|
589
|
|
|
590 value = value * 10 + (*line - '0');
|
|
|
591 }
|
|
|
592
|
|
|
593 if (value < 0) {
|
|
|
594 return NGX_ERROR;
|
|
|
595
|
|
|
596 } else {
|
|
|
597 return value;
|
|
|
598 }
|
|
|
599 }
|
|
|
600
|
|
|
601
|
|
50
|
602 ssize_t
|
|
|
603 ngx_atosz(u_char *line, size_t n)
|
|
|
604 {
|
|
|
605 ssize_t value;
|
|
|
606
|
|
|
607 if (n == 0) {
|
|
|
608 return NGX_ERROR;
|
|
|
609 }
|
|
|
610
|
|
|
611 for (value = 0; n--; line++) {
|
|
|
612 if (*line < '0' || *line > '9') {
|
|
|
613 return NGX_ERROR;
|
|
|
614 }
|
|
|
615
|
|
|
616 value = value * 10 + (*line - '0');
|
|
|
617 }
|
|
|
618
|
|
|
619 if (value < 0) {
|
|
|
620 return NGX_ERROR;
|
|
|
621
|
|
|
622 } else {
|
|
|
623 return value;
|
|
|
624 }
|
|
|
625 }
|
|
|
626
|
|
|
627
|
|
|
628 off_t
|
|
|
629 ngx_atoof(u_char *line, size_t n)
|
|
|
630 {
|
|
|
631 off_t value;
|
|
|
632
|
|
|
633 if (n == 0) {
|
|
|
634 return NGX_ERROR;
|
|
|
635 }
|
|
|
636
|
|
|
637 for (value = 0; n--; line++) {
|
|
|
638 if (*line < '0' || *line > '9') {
|
|
|
639 return NGX_ERROR;
|
|
|
640 }
|
|
|
641
|
|
|
642 value = value * 10 + (*line - '0');
|
|
|
643 }
|
|
|
644
|
|
|
645 if (value < 0) {
|
|
|
646 return NGX_ERROR;
|
|
|
647
|
|
|
648 } else {
|
|
|
649 return value;
|
|
|
650 }
|
|
|
651 }
|
|
|
652
|
|
|
653
|
|
|
654 time_t
|
|
|
655 ngx_atotm(u_char *line, size_t n)
|
|
|
656 {
|
|
|
657 time_t value;
|
|
|
658
|
|
|
659 if (n == 0) {
|
|
|
660 return NGX_ERROR;
|
|
|
661 }
|
|
|
662
|
|
|
663 for (value = 0; n--; line++) {
|
|
|
664 if (*line < '0' || *line > '9') {
|
|
|
665 return NGX_ERROR;
|
|
|
666 }
|
|
|
667
|
|
|
668 value = value * 10 + (*line - '0');
|
|
|
669 }
|
|
|
670
|
|
|
671 if (value < 0) {
|
|
|
672 return NGX_ERROR;
|
|
|
673
|
|
|
674 } else {
|
|
|
675 return value;
|
|
|
676 }
|
|
|
677 }
|
|
|
678
|
|
|
679
|
|
42
|
680 ngx_int_t
|
|
|
681 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
682 {
|
|
250
|
683 u_char c, ch;
|
|
0
|
684 ngx_int_t value;
|
|
|
685
|
|
|
686 if (n == 0) {
|
|
|
687 return NGX_ERROR;
|
|
|
688 }
|
|
|
689
|
|
|
690 for (value = 0; n--; line++) {
|
|
|
691 ch = *line;
|
|
|
692
|
|
|
693 if (ch >= '0' && ch <= '9') {
|
|
|
694 value = value * 16 + (ch - '0');
|
|
|
695 continue;
|
|
|
696 }
|
|
|
697
|
|
250
|
698 c = (u_char) (ch | 0x20);
|
|
0
|
699
|
|
250
|
700 if (c >= 'a' && c <= 'f') {
|
|
|
701 value = value * 16 + (c - 'a' + 10);
|
|
0
|
702 continue;
|
|
|
703 }
|
|
|
704
|
|
|
705 return NGX_ERROR;
|
|
|
706 }
|
|
|
707
|
|
|
708 if (value < 0) {
|
|
|
709 return NGX_ERROR;
|
|
|
710
|
|
|
711 } else {
|
|
|
712 return value;
|
|
|
713 }
|
|
|
714 }
|
|
|
715
|
|
|
716
|
|
42
|
717 void
|
|
|
718 ngx_md5_text(u_char *text, u_char *md5)
|
|
0
|
719 {
|
|
|
720 int i;
|
|
|
721 static u_char hex[] = "0123456789abcdef";
|
|
|
722
|
|
|
723 for (i = 0; i < 16; i++) {
|
|
|
724 *text++ = hex[md5[i] >> 4];
|
|
|
725 *text++ = hex[md5[i] & 0xf];
|
|
|
726 }
|
|
|
727
|
|
|
728 *text = '\0';
|
|
|
729 }
|
|
|
730
|
|
|
731
|
|
42
|
732 void
|
|
|
733 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
734 {
|
|
|
735 u_char *d, *s;
|
|
|
736 size_t len;
|
|
|
737 static u_char basis64[] =
|
|
|
738 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
739
|
|
|
740 len = src->len;
|
|
|
741 s = src->data;
|
|
|
742 d = dst->data;
|
|
|
743
|
|
|
744 while (len > 2) {
|
|
|
745 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
746 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
747 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
748 *d++ = basis64[s[2] & 0x3f];
|
|
|
749
|
|
|
750 s += 3;
|
|
|
751 len -= 3;
|
|
|
752 }
|
|
|
753
|
|
|
754 if (len) {
|
|
|
755 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
756
|
|
|
757 if (len == 1) {
|
|
|
758 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
759 *d++ = '=';
|
|
|
760
|
|
|
761 } else {
|
|
|
762 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
763 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
764 }
|
|
|
765
|
|
|
766 *d++ = '=';
|
|
|
767 }
|
|
|
768
|
|
|
769 dst->len = d - dst->data;
|
|
|
770 }
|
|
|
771
|
|
|
772
|
|
42
|
773 ngx_int_t
|
|
|
774 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
775 {
|
|
|
776 size_t len;
|
|
|
777 u_char *d, *s;
|
|
254
|
778 static u_char basis64[] = {
|
|
|
779 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
780 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
781 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
782 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
783 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
784 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
785 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
786 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
0
|
787
|
|
254
|
788 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
789 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
790 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
791 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
792 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
793 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
794 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
795 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
|
|
|
796 };
|
|
0
|
797
|
|
|
798 for (len = 0; len < src->len; len++) {
|
|
|
799 if (src->data[len] == '=') {
|
|
|
800 break;
|
|
|
801 }
|
|
|
802
|
|
|
803 if (basis64[src->data[len]] == 77) {
|
|
|
804 return NGX_ERROR;
|
|
|
805 }
|
|
|
806 }
|
|
|
807
|
|
|
808 if (len % 4 == 1) {
|
|
|
809 return NGX_ERROR;
|
|
|
810 }
|
|
|
811
|
|
|
812 s = src->data;
|
|
|
813 d = dst->data;
|
|
|
814
|
|
|
815 while (len > 3) {
|
|
|
816 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
817 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
818 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
819
|
|
|
820 s += 4;
|
|
|
821 len -= 4;
|
|
|
822 }
|
|
|
823
|
|
|
824 if (len > 1) {
|
|
|
825 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
826 }
|
|
|
827
|
|
|
828 if (len > 2) {
|
|
|
829 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
830 }
|
|
|
831
|
|
|
832 dst->len = d - dst->data;
|
|
|
833
|
|
|
834 return NGX_OK;
|
|
|
835 }
|
|
|
836
|
|
|
837
|
|
206
|
838 /*
|
|
|
839 * ngx_utf_decode() decodes two and more bytes UTF sequences only
|
|
|
840 * the return values:
|
|
|
841 * 0x80 - 0x10ffff valid character
|
|
|
842 * 0x10ffff - 0xfffffffd invalid sequence
|
|
|
843 * 0xfffffffe incomplete sequence
|
|
|
844 * 0xffffffff error
|
|
|
845 */
|
|
|
846
|
|
|
847 uint32_t
|
|
|
848 ngx_utf_decode(u_char **p, size_t n)
|
|
|
849 {
|
|
|
850 size_t len;
|
|
|
851 uint32_t u, i, valid;
|
|
|
852
|
|
|
853 u = **p;
|
|
|
854
|
|
|
855 if (u > 0xf0) {
|
|
|
856
|
|
|
857 u &= 0x07;
|
|
|
858 valid = 0xffff;
|
|
|
859 len = 3;
|
|
|
860
|
|
|
861 } else if (u > 0xe0) {
|
|
|
862
|
|
|
863 u &= 0x0f;
|
|
|
864 valid = 0x7ff;
|
|
|
865 len = 2;
|
|
|
866
|
|
|
867 } else if (u > 0xc0) {
|
|
|
868
|
|
|
869 u &= 0x1f;
|
|
|
870 valid = 0x7f;
|
|
|
871 len = 1;
|
|
|
872
|
|
|
873 } else {
|
|
|
874 (*p)++;
|
|
|
875 return 0xffffffff;
|
|
|
876 }
|
|
|
877
|
|
|
878 if (n - 1 < len) {
|
|
|
879 return 0xfffffffe;
|
|
|
880 }
|
|
|
881
|
|
|
882 (*p)++;
|
|
|
883
|
|
|
884 while (len) {
|
|
|
885 i = *(*p)++;
|
|
|
886
|
|
|
887 if (i < 0x80) {
|
|
|
888 return 0xffffffff;
|
|
|
889 }
|
|
|
890
|
|
|
891 u = (u << 6) | (i & 0x3f);
|
|
|
892
|
|
|
893 len--;
|
|
|
894 }
|
|
|
895
|
|
|
896 if (u > valid) {
|
|
|
897 return u;
|
|
|
898 }
|
|
|
899
|
|
|
900 return 0xffffffff;
|
|
|
901 }
|
|
|
902
|
|
|
903
|
|
72
|
904 size_t
|
|
206
|
905 ngx_utf_length(u_char *p, size_t n)
|
|
72
|
906 {
|
|
|
907 u_char c;
|
|
|
908 size_t len;
|
|
|
909 ngx_uint_t i;
|
|
|
910
|
|
206
|
911 for (len = 0, i = 0; i < n; len++, i++) {
|
|
72
|
912
|
|
206
|
913 c = p[i];
|
|
72
|
914
|
|
|
915 if (c < 0x80) {
|
|
|
916 continue;
|
|
|
917 }
|
|
|
918
|
|
76
|
919 if (c >= 0xc0) {
|
|
|
920 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
921 i++;
|
|
|
922 }
|
|
|
923
|
|
|
924 continue;
|
|
72
|
925 }
|
|
|
926
|
|
76
|
927 /* invalid utf */
|
|
|
928
|
|
206
|
929 return n;
|
|
72
|
930 }
|
|
|
931
|
|
|
932 return len;
|
|
|
933 }
|
|
|
934
|
|
|
935
|
|
76
|
936 u_char *
|
|
|
937 ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n)
|
|
|
938 {
|
|
|
939 u_char c;
|
|
|
940
|
|
|
941 if (n == 0) {
|
|
|
942 return dst;
|
|
|
943 }
|
|
|
944
|
|
|
945 for ( /* void */ ; --n; dst++, src++) {
|
|
|
946
|
|
|
947 c = *src;
|
|
|
948 *dst = c;
|
|
|
949
|
|
|
950 if (c < 0x80) {
|
|
|
951 if (*dst != '\0') {
|
|
|
952 continue;
|
|
|
953 }
|
|
|
954
|
|
|
955 return dst;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (c >= 0xc0) {
|
|
|
959 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
960 *++dst = *++src;
|
|
|
961 }
|
|
|
962
|
|
|
963 continue;
|
|
|
964 }
|
|
|
965
|
|
|
966 /* invalid utf */
|
|
|
967 }
|
|
|
968
|
|
|
969 *dst = '\0';
|
|
|
970
|
|
|
971 return dst;
|
|
|
972 }
|
|
|
973
|
|
|
974
|
|
42
|
975 uintptr_t
|
|
|
976 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
977 {
|
|
254
|
978 ngx_uint_t i, n;
|
|
|
979 uint32_t *escape;
|
|
|
980 static u_char hex[] = "0123456789abcdef";
|
|
10
|
981
|
|
254
|
982 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
983
|
|
254
|
984 static uint32_t uri[] = {
|
|
|
985 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
986
|
|
254
|
987 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
988 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
|
989
|
|
|
990 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
991 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
2
|
992
|
|
254
|
993 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
994 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
995
|
|
254
|
996 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
997 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
998 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
999 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1000 };
|
|
2
|
1001
|
|
254
|
1002 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
1003
|
|
254
|
1004 static uint32_t args[] = {
|
|
|
1005 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1006
|
|
|
1007 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1008 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
1009
|
|
254
|
1010 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1011 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1012
|
|
254
|
1013 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1014 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1015
|
|
254
|
1016 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1017 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1018 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1019 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1020 };
|
|
34
|
1021
|
|
254
|
1022 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
34
|
1023
|
|
254
|
1024 static uint32_t html[] = {
|
|
|
1025 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
10
|
1026
|
|
254
|
1027 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
320
|
1028 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
254
|
1029
|
|
|
1030 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1031 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1032
|
|
254
|
1033 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1034 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1035
|
|
254
|
1036 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1037 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1038 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1039 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1040 };
|
|
10
|
1041
|
|
320
|
1042 /* " ", """, "'", %00-%1F, %7F-%FF */
|
|
10
|
1043
|
|
320
|
1044 static uint32_t refresh[] = {
|
|
|
1045 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1046
|
|
|
1047 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1048 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */
|
|
|
1049
|
|
|
1050 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1051 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1052
|
|
|
1053 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1054 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1055
|
|
|
1056 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1057 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1058 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1059 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1060 };
|
|
|
1061
|
|
322
|
1062 /* " ", %00-%1F */
|
|
|
1063
|
|
|
1064 static uint32_t memcached[] = {
|
|
|
1065 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1066
|
|
|
1067 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1068 0x00000001, /* 0000 0000 0000 0000 0000 0000 0000 0001 */
|
|
|
1069
|
|
|
1070 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1071 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1072
|
|
|
1073 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1074 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1075
|
|
|
1076 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1077 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1078 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1079 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1080 };
|
|
|
1081
|
|
|
1082 static uint32_t *map[] = { uri, args, html, refresh, memcached };
|
|
320
|
1083
|
|
|
1084
|
|
|
1085 escape = map[type];
|
|
10
|
1086
|
|
2
|
1087 if (dst == NULL) {
|
|
|
1088
|
|
|
1089 /* find the number of the characters to be escaped */
|
|
0
|
1090
|
|
2
|
1091 n = 0;
|
|
|
1092
|
|
|
1093 for (i = 0; i < size; i++) {
|
|
|
1094 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1095 n++;
|
|
|
1096 }
|
|
|
1097 src++;
|
|
|
1098 }
|
|
|
1099
|
|
34
|
1100 return (uintptr_t) n;
|
|
0
|
1101 }
|
|
|
1102
|
|
2
|
1103 for (i = 0; i < size; i++) {
|
|
|
1104 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1105 *dst++ = '%';
|
|
|
1106 *dst++ = hex[*src >> 4];
|
|
|
1107 *dst++ = hex[*src & 0xf];
|
|
|
1108 src++;
|
|
0
|
1109
|
|
2
|
1110 } else {
|
|
|
1111 *dst++ = *src++;
|
|
|
1112 }
|
|
0
|
1113 }
|
|
|
1114
|
|
34
|
1115 return (uintptr_t) dst;
|
|
0
|
1116 }
|
|
126
|
1117
|
|
|
1118
|
|
|
1119 void
|
|
150
|
1120 ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type)
|
|
126
|
1121 {
|
|
|
1122 u_char *d, *s, ch, c, decoded;
|
|
|
1123 enum {
|
|
|
1124 sw_usual = 0,
|
|
|
1125 sw_quoted,
|
|
|
1126 sw_quoted_second
|
|
|
1127 } state;
|
|
|
1128
|
|
|
1129 d = *dst;
|
|
|
1130 s = *src;
|
|
|
1131
|
|
|
1132 state = 0;
|
|
|
1133 decoded = 0;
|
|
|
1134
|
|
|
1135 while (size--) {
|
|
|
1136
|
|
|
1137 ch = *s++;
|
|
|
1138
|
|
|
1139 switch (state) {
|
|
|
1140 case sw_usual:
|
|
150
|
1141 if (ch == '?' && type == NGX_UNESCAPE_URI) {
|
|
126
|
1142 *d++ = ch;
|
|
|
1143 goto done;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 if (ch == '%') {
|
|
|
1147 state = sw_quoted;
|
|
|
1148 break;
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 *d++ = ch;
|
|
|
1152 break;
|
|
|
1153
|
|
|
1154 case sw_quoted:
|
|
|
1155
|
|
|
1156 if (ch >= '0' && ch <= '9') {
|
|
|
1157 decoded = (u_char) (ch - '0');
|
|
|
1158 state = sw_quoted_second;
|
|
|
1159 break;
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 c = (u_char) (ch | 0x20);
|
|
|
1163 if (c >= 'a' && c <= 'f') {
|
|
|
1164 decoded = (u_char) (c - 'a' + 10);
|
|
|
1165 state = sw_quoted_second;
|
|
|
1166 break;
|
|
|
1167 }
|
|
|
1168
|
|
138
|
1169 /* the invalid quoted character */
|
|
126
|
1170
|
|
138
|
1171 state = sw_usual;
|
|
|
1172
|
|
|
1173 *d++ = ch;
|
|
126
|
1174
|
|
|
1175 break;
|
|
|
1176
|
|
|
1177 case sw_quoted_second:
|
|
|
1178
|
|
138
|
1179 state = sw_usual;
|
|
|
1180
|
|
126
|
1181 if (ch >= '0' && ch <= '9') {
|
|
|
1182 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
1183
|
|
150
|
1184 if (type == NGX_UNESCAPE_URI) {
|
|
|
1185 if (ch > '%' && ch < 0x7f) {
|
|
|
1186 *d++ = ch;
|
|
|
1187 break;
|
|
|
1188 }
|
|
|
1189
|
|
|
1190 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
|
1191
|
|
126
|
1192 break;
|
|
|
1193 }
|
|
|
1194
|
|
150
|
1195 *d++ = ch;
|
|
126
|
1196
|
|
|
1197 break;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 c = (u_char) (ch | 0x20);
|
|
|
1201 if (c >= 'a' && c <= 'f') {
|
|
|
1202 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
1203
|
|
150
|
1204 if (type == NGX_UNESCAPE_URI) {
|
|
|
1205 if (ch == '?') {
|
|
|
1206 *d++ = ch;
|
|
|
1207 goto done;
|
|
|
1208 }
|
|
126
|
1209
|
|
150
|
1210 if (ch > '%' && ch < 0x7f) {
|
|
|
1211 *d++ = ch;
|
|
|
1212 break;
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
126
|
1216 break;
|
|
|
1217 }
|
|
|
1218
|
|
150
|
1219 *d++ = ch;
|
|
126
|
1220
|
|
|
1221 break;
|
|
|
1222 }
|
|
|
1223
|
|
138
|
1224 /* the invalid quoted character */
|
|
126
|
1225
|
|
|
1226 break;
|
|
|
1227 }
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 done:
|
|
|
1231
|
|
|
1232 *dst = d;
|
|
|
1233 *src = s;
|
|
|
1234 }
|
|
132
|
1235
|
|
|
1236
|
|
302
|
1237 /* ngx_sort() is implemented as insertion sort because we need stable sort */
|
|
|
1238
|
|
|
1239 void
|
|
|
1240 ngx_sort(void *base, size_t n, size_t size,
|
|
|
1241 int (*cmp)(const void *, const void *))
|
|
|
1242 {
|
|
|
1243 u_char *p1, *p2;
|
|
|
1244 u_char buf[256];
|
|
|
1245
|
|
|
1246 for (p1 = (u_char *) base + size;
|
|
|
1247 p1 < (u_char *) base + n * size;
|
|
|
1248 p1 += size)
|
|
|
1249 {
|
|
|
1250 ngx_memcpy(buf, p1, size);
|
|
|
1251
|
|
|
1252 for (p2 = p1;
|
|
|
1253 p2 > (u_char *) base && cmp(p2 - size, buf) > 0;
|
|
|
1254 p2 -= size)
|
|
|
1255 {
|
|
|
1256 ngx_memcpy(p2, p2 - size, size);
|
|
|
1257 }
|
|
|
1258
|
|
|
1259 ngx_memcpy(p2, buf, size);
|
|
|
1260 }
|
|
|
1261 }
|
|
|
1262
|
|
|
1263
|
|
132
|
1264 #if (NGX_MEMCPY_LIMIT)
|
|
|
1265
|
|
|
1266 void *
|
|
|
1267 ngx_memcpy(void *dst, void *src, size_t n)
|
|
|
1268 {
|
|
|
1269 if (n > NGX_MEMCPY_LIMIT) {
|
|
|
1270 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n);
|
|
|
1271 ngx_debug_point();
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 return memcpy(dst, src, n);
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 #endif
|
