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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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60 * %r rlim_t
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61 * %p pointer
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62 * %V pointer to ngx_str_t
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63 * %s null-terminated string
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64 * %Z '\0'
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65 * %c char
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66 * %% %
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4
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67 *
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10
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68 * TODO:
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69 * %M ngx_msec_t
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70 *
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71 * reserved:
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72 * %t ptrdiff_t
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73 * %S null-teminated wchar string
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74 * %C wchar
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4
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75 */
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76
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10
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77
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52
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78 u_char * ngx_cdecl
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42
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79 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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80 {
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81 u_char *p;
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82 va_list args;
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83
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84 va_start(args, fmt);
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85 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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86 va_end(args);
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87
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88 return p;
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89 }
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90
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91
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52
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92 u_char * ngx_cdecl
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42
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93 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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94 {
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10
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95 u_char *p;
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96 va_list args;
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97
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98 va_start(args, fmt);
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99 p = ngx_vsnprintf(buf, max, fmt, args);
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100 va_end(args);
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101
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102 return p;
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103 }
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104
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4
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105
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42
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106 u_char *
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107 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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108 {
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28
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109 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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110 /*
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111 * really we need temp[NGX_INT64_LEN] only,
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42
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112 * but icc issues the warning
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28
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113 */
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10
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114 int d;
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115 size_t len;
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116 uint32_t ui32;
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117 int64_t i64;
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118 uint64_t ui64;
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119 ngx_str_t *s;
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42
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120 ngx_uint_t width, sign, hexadecimal, max_width;
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10
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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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191 s = va_arg(args, ngx_str_t *);
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4
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192
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10
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193 len = (buf + s->len < last) ? s->len : (size_t) (last - buf);
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194 buf = ngx_cpymem(buf, s->data, len);
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195 fmt++;
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4
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196
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10
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197 continue;
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4
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198
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199 case 's':
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10
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200 p = va_arg(args, u_char *);
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4
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201
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10
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202 while (*p && buf < last) {
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4
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203 *buf++ = *p++;
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204 }
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205 fmt++;
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206
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207 continue;
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208
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10
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209 case 'O':
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210 i64 = (int64_t) va_arg(args, off_t);
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211 sign = 1;
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212 break;
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213
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214 case 'P':
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215 i64 = (int64_t) va_arg(args, ngx_pid_t);
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216 sign = 1;
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217 break;
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218
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219 case 'T':
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220 i64 = (int64_t) va_arg(args, time_t);
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221 sign = 1;
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222 break;
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223
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224 case 'z':
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225 if (sign) {
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226 i64 = (int64_t) va_arg(args, ssize_t);
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227 } else {
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228 ui64 = (uint64_t) va_arg(args, size_t);
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229 }
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230 break;
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231
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232 case 'i':
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233 if (sign) {
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234 i64 = (int64_t) va_arg(args, ngx_int_t);
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235 } else {
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236 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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237 }
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42
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238
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239 if (max_width) {
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240 width = NGX_INT_T_LEN;
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241 }
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242
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10
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243 break;
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244
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245 case 'd':
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246 if (sign) {
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247 i64 = (int64_t) va_arg(args, int);
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248 } else {
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249 ui64 = (uint64_t) va_arg(args, u_int);
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250 }
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251 break;
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252
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253 case 'l':
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254 if (sign) {
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255 i64 = (int64_t) va_arg(args, long);
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256 } else {
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257 ui64 = (uint64_t) va_arg(args, u_long);
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258 }
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259 break;
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260
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261 case 'D':
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262 if (sign) {
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263 i64 = (int64_t) va_arg(args, int32_t);
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264 } else {
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265 ui64 = (uint64_t) va_arg(args, uint32_t);
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266 }
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267 break;
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268
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269 case 'L':
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270 if (sign) {
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271 i64 = va_arg(args, int64_t);
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272 } else {
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273 ui64 = va_arg(args, uint64_t);
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274 }
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275 break;
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276
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42
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277 case 'A':
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278 if (sign) {
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279 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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280 } else {
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44
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281 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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282 }
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283
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284 if (max_width) {
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285 width = NGX_ATOMIC_T_LEN;
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286 }
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287
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288 break;
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289
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10
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290 #if !(NGX_WIN32)
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291 case 'r':
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292 i64 = (int64_t) va_arg(args, rlim_t);
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293 sign = 1;
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294 break;
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295 #endif
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296
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297 case 'p':
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298 ui64 = (uintptr_t) va_arg(args, void *);
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299 hexadecimal = 2;
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300 sign = 0;
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301 zero = '0';
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302 width = 8;
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303 break;
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304
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6
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305 case 'c':
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10
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306 d = va_arg(args, int);
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6
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307 *buf++ = (u_char) (d & 0xff);
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308 fmt++;
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309
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310 continue;
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311
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10
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312 case 'Z':
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313 *buf++ = '\0';
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314 fmt++;
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315
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316 continue;
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317
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4
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318 case '%':
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319 *buf++ = '%';
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320 fmt++;
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321
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322 continue;
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323
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324 default:
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325 *buf++ = *fmt++;
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326
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327 continue;
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328 }
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329
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10
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330 if (sign) {
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331 if (i64 < 0) {
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332 *buf++ = '-';
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333 ui64 = (uint64_t) -i64;
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334
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335 } else {
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336 ui64 = (uint64_t) i64;
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337 }
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338 }
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339
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340 if (hexadecimal == 1) {
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341 do {
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342
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343 /* the "(uint32_t)" cast disables the BCC's warning */
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344 *--p = hex[(uint32_t) (ui64 & 0xf)];
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345
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346 } while (ui64 >>= 4);
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347
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348 } else if (hexadecimal == 2) {
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349 do {
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350
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351 /* the "(uint32_t)" cast disables the BCC's warning */
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352 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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353
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354 } while (ui64 >>= 4);
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355
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356 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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357
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358 /*
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359 * To divide 64-bit number and to find the remainder
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360 * on the x86 platform gcc and icc call the libc functions
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361 * [u]divdi3() and [u]moddi3(), they call another function
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42
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362 * in its turn. On FreeBSD it is the qdivrem() function,
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10
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363 * its source code is about 170 lines of the code.
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364 * The glibc counterpart is about 150 lines of the code.
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365 *
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42
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366 * For 32-bit numbers and some divisors gcc and icc use
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367 * the inlined multiplication and shifts. For example,
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368 * unsigned "i32 / 10" is compiled to
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369 *
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370 * (i32 * 0xCCCCCCCD) >> 35
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10
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371 */
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372
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373 ui32 = (uint32_t) ui64;
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374
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375 do {
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376 *--p = (u_char) (ui32 % 10 + '0');
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377 } while (ui32 /= 10);
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378
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379 } else {
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380 do {
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381 *--p = (u_char) (ui64 % 10 + '0');
|
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382 } while (ui64 /= 10);
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383 }
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384
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26
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385 len = (temp + NGX_INT64_LEN) - p;
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4
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386
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10
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387 while (len++ < width && buf < last) {
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388 *buf++ = zero;
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4
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389 }
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390
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26
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391 len = (temp + NGX_INT64_LEN) - p;
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10
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392 if (buf + len > last) {
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393 len = last - buf;
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394 }
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395
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396 buf = ngx_cpymem(buf, p, len);
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4
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397
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398 fmt++;
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399
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|
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400 } else {
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401 *buf++ = *fmt++;
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402 }
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403 }
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404
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405 return buf;
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406 }
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407
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408
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42
|
409 ngx_int_t
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|
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410 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
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0
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411 {
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|
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412 if (n == 0) {
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413 return 0;
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414 }
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415
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|
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416 n--;
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417
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|
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418 for ( ;; ) {
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419 if (s1[n] != s2[n]) {
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420 return s1[n] - s2[n];
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421 }
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422
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|
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423 if (n == 0) {
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424 return 0;
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425 }
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426
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427 n--;
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428 }
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|
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429 }
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430
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431
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42
|
432 ngx_int_t
|
|
|
433 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
434 {
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|
|
435 u_char c1, c2;
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436
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|
|
437 if (n == 0) {
|
|
|
438 return 0;
|
|
|
439 }
|
|
|
440
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|
|
441 n--;
|
|
|
442
|
|
|
443 for ( ;; ) {
|
|
|
444 c1 = s1[n];
|
|
|
445 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
446 c1 -= 'a' - 'A';
|
|
|
447 }
|
|
|
448
|
|
|
449 c2 = s2[n];
|
|
|
450 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
451 c2 -= 'a' - 'A';
|
|
|
452 }
|
|
|
453
|
|
|
454 if (c1 != c2) {
|
|
|
455 return c1 - c2;
|
|
|
456 }
|
|
|
457
|
|
|
458 if (n == 0) {
|
|
|
459 return 0;
|
|
|
460 }
|
|
|
461
|
|
|
462 n--;
|
|
|
463 }
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
42
|
467 ngx_int_t
|
|
|
468 ngx_atoi(u_char *line, size_t n)
|
|
0
|
469 {
|
|
|
470 ngx_int_t value;
|
|
|
471
|
|
|
472 if (n == 0) {
|
|
|
473 return NGX_ERROR;
|
|
|
474 }
|
|
|
475
|
|
|
476 for (value = 0; n--; line++) {
|
|
|
477 if (*line < '0' || *line > '9') {
|
|
|
478 return NGX_ERROR;
|
|
|
479 }
|
|
|
480
|
|
|
481 value = value * 10 + (*line - '0');
|
|
|
482 }
|
|
|
483
|
|
|
484 if (value < 0) {
|
|
|
485 return NGX_ERROR;
|
|
|
486
|
|
|
487 } else {
|
|
|
488 return value;
|
|
|
489 }
|
|
|
490 }
|
|
|
491
|
|
|
492
|
|
50
|
493 ssize_t
|
|
|
494 ngx_atosz(u_char *line, size_t n)
|
|
|
495 {
|
|
|
496 ssize_t value;
|
|
|
497
|
|
|
498 if (n == 0) {
|
|
|
499 return NGX_ERROR;
|
|
|
500 }
|
|
|
501
|
|
|
502 for (value = 0; n--; line++) {
|
|
|
503 if (*line < '0' || *line > '9') {
|
|
|
504 return NGX_ERROR;
|
|
|
505 }
|
|
|
506
|
|
|
507 value = value * 10 + (*line - '0');
|
|
|
508 }
|
|
|
509
|
|
|
510 if (value < 0) {
|
|
|
511 return NGX_ERROR;
|
|
|
512
|
|
|
513 } else {
|
|
|
514 return value;
|
|
|
515 }
|
|
|
516 }
|
|
|
517
|
|
|
518
|
|
|
519 off_t
|
|
|
520 ngx_atoof(u_char *line, size_t n)
|
|
|
521 {
|
|
|
522 off_t value;
|
|
|
523
|
|
|
524 if (n == 0) {
|
|
|
525 return NGX_ERROR;
|
|
|
526 }
|
|
|
527
|
|
|
528 for (value = 0; n--; line++) {
|
|
|
529 if (*line < '0' || *line > '9') {
|
|
|
530 return NGX_ERROR;
|
|
|
531 }
|
|
|
532
|
|
|
533 value = value * 10 + (*line - '0');
|
|
|
534 }
|
|
|
535
|
|
|
536 if (value < 0) {
|
|
|
537 return NGX_ERROR;
|
|
|
538
|
|
|
539 } else {
|
|
|
540 return value;
|
|
|
541 }
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
|
545 time_t
|
|
|
546 ngx_atotm(u_char *line, size_t n)
|
|
|
547 {
|
|
|
548 time_t value;
|
|
|
549
|
|
|
550 if (n == 0) {
|
|
|
551 return NGX_ERROR;
|
|
|
552 }
|
|
|
553
|
|
|
554 for (value = 0; n--; line++) {
|
|
|
555 if (*line < '0' || *line > '9') {
|
|
|
556 return NGX_ERROR;
|
|
|
557 }
|
|
|
558
|
|
|
559 value = value * 10 + (*line - '0');
|
|
|
560 }
|
|
|
561
|
|
|
562 if (value < 0) {
|
|
|
563 return NGX_ERROR;
|
|
|
564
|
|
|
565 } else {
|
|
|
566 return value;
|
|
|
567 }
|
|
|
568 }
|
|
|
569
|
|
|
570
|
|
42
|
571 ngx_int_t
|
|
|
572 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
573 {
|
|
|
574 u_char ch;
|
|
|
575 ngx_int_t value;
|
|
|
576
|
|
|
577 if (n == 0) {
|
|
|
578 return NGX_ERROR;
|
|
|
579 }
|
|
|
580
|
|
|
581 for (value = 0; n--; line++) {
|
|
|
582 ch = *line;
|
|
|
583
|
|
|
584 if (ch >= '0' && ch <= '9') {
|
|
|
585 value = value * 16 + (ch - '0');
|
|
|
586 continue;
|
|
|
587 }
|
|
|
588
|
|
|
589 if (ch >= 'A' && ch <= 'F') {
|
|
|
590 value = value * 16 + (ch - 'A' + 10);
|
|
|
591 continue;
|
|
|
592 }
|
|
|
593
|
|
|
594 if (ch >= 'a' && ch <= 'f') {
|
|
|
595 value = value * 16 + (ch - 'a' + 10);
|
|
|
596 continue;
|
|
|
597 }
|
|
|
598
|
|
|
599 return NGX_ERROR;
|
|
|
600 }
|
|
|
601
|
|
|
602 if (value < 0) {
|
|
|
603 return NGX_ERROR;
|
|
|
604
|
|
|
605 } else {
|
|
|
606 return value;
|
|
|
607 }
|
|
|
608 }
|
|
|
609
|
|
|
610
|
|
42
|
611 void
|
|
|
612 ngx_md5_text(u_char *text, u_char *md5)
|
|
0
|
613 {
|
|
|
614 int i;
|
|
|
615 static u_char hex[] = "0123456789abcdef";
|
|
|
616
|
|
|
617 for (i = 0; i < 16; i++) {
|
|
|
618 *text++ = hex[md5[i] >> 4];
|
|
|
619 *text++ = hex[md5[i] & 0xf];
|
|
|
620 }
|
|
|
621
|
|
|
622 *text = '\0';
|
|
|
623 }
|
|
|
624
|
|
|
625
|
|
42
|
626 void
|
|
|
627 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
628 {
|
|
|
629 u_char *d, *s;
|
|
|
630 size_t len;
|
|
|
631 static u_char basis64[] =
|
|
|
632 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
633
|
|
|
634 len = src->len;
|
|
|
635 s = src->data;
|
|
|
636 d = dst->data;
|
|
|
637
|
|
|
638 while (len > 2) {
|
|
|
639 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
640 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
641 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
642 *d++ = basis64[s[2] & 0x3f];
|
|
|
643
|
|
|
644 s += 3;
|
|
|
645 len -= 3;
|
|
|
646 }
|
|
|
647
|
|
|
648 if (len) {
|
|
|
649 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
650
|
|
|
651 if (len == 1) {
|
|
|
652 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
653 *d++ = '=';
|
|
|
654
|
|
|
655 } else {
|
|
|
656 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
657 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
658 }
|
|
|
659
|
|
|
660 *d++ = '=';
|
|
|
661 }
|
|
|
662
|
|
|
663 dst->len = d - dst->data;
|
|
|
664 }
|
|
|
665
|
|
|
666
|
|
42
|
667 ngx_int_t
|
|
|
668 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
669 {
|
|
|
670 size_t len;
|
|
|
671 u_char *d, *s;
|
|
|
672 static u_char basis64[] =
|
|
|
673 { 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
674 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
675 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
676 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
677 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
678 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
679 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
680 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
|
681
|
|
|
682 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
683 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
684 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
685 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
686 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
687 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
688 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
689 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
|
690
|
|
|
691 for (len = 0; len < src->len; len++) {
|
|
|
692 if (src->data[len] == '=') {
|
|
|
693 break;
|
|
|
694 }
|
|
|
695
|
|
|
696 if (basis64[src->data[len]] == 77) {
|
|
|
697 return NGX_ERROR;
|
|
|
698 }
|
|
|
699 }
|
|
|
700
|
|
|
701 if (len % 4 == 1) {
|
|
|
702 return NGX_ERROR;
|
|
|
703 }
|
|
|
704
|
|
|
705 s = src->data;
|
|
|
706 d = dst->data;
|
|
|
707
|
|
|
708 while (len > 3) {
|
|
|
709 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
710 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
711 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
712
|
|
|
713 s += 4;
|
|
|
714 len -= 4;
|
|
|
715 }
|
|
|
716
|
|
|
717 if (len > 1) {
|
|
|
718 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
719 }
|
|
|
720
|
|
|
721 if (len > 2) {
|
|
|
722 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
723 }
|
|
|
724
|
|
|
725 dst->len = d - dst->data;
|
|
|
726
|
|
|
727 return NGX_OK;
|
|
|
728 }
|
|
|
729
|
|
|
730
|
|
42
|
731 uintptr_t
|
|
|
732 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
733 {
|
|
10
|
734 ngx_uint_t i, n;
|
|
|
735 uint32_t *escape;
|
|
2
|
736 static u_char hex[] = "0123456789abcdef";
|
|
10
|
737
|
|
42
|
738 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
739
|
|
10
|
740 static uint32_t uri[] =
|
|
2
|
741 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
742
|
|
2
|
743 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
744 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
2
|
745
|
|
|
746 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
747 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
748
|
|
|
749 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
750 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
751
|
|
2
|
752 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
753 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
754 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
755 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
756
|
|
42
|
757 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
758
|
|
|
759 static uint32_t args[] =
|
|
|
760 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
761
|
|
|
762 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
763 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
764
|
|
|
765 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
766 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
767
|
|
|
768 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
769 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
770
|
|
|
771 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
772 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
773 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
774 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
775
|
|
|
776 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
|
777
|
|
10
|
778 static uint32_t html[] =
|
|
|
779 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
780
|
|
|
781 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
782 0x800000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
10
|
783
|
|
|
784 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
785 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
786
|
|
|
787 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
788 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
789
|
|
|
790 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
791 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
792 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
793 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
794
|
|
70
|
795 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
|
796
|
|
|
797 static uint32_t utf[] =
|
|
|
798 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
799
|
|
|
800 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
801 0x800000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
|
802
|
|
|
803 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
804 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
805
|
|
|
806 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
807 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
808
|
|
|
809 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
810 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
811 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
812 0x00000000 /* 0000 0000 0000 0000 0000 0000 0000 0000 */ };
|
|
|
813
|
|
10
|
814
|
|
34
|
815 switch (type) {
|
|
70
|
816 case NGX_ESCAPE_UTF:
|
|
|
817 escape = utf;
|
|
|
818 break;
|
|
34
|
819 case NGX_ESCAPE_HTML:
|
|
10
|
820 escape = html;
|
|
34
|
821 break;
|
|
|
822 case NGX_ESCAPE_ARGS:
|
|
|
823 escape = args;
|
|
|
824 break;
|
|
|
825 default:
|
|
10
|
826 escape = uri;
|
|
34
|
827 break;
|
|
10
|
828 }
|
|
|
829
|
|
2
|
830 if (dst == NULL) {
|
|
|
831
|
|
|
832 /* find the number of the characters to be escaped */
|
|
0
|
833
|
|
2
|
834 n = 0;
|
|
|
835
|
|
|
836 for (i = 0; i < size; i++) {
|
|
|
837 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
838 n++;
|
|
|
839 }
|
|
|
840 src++;
|
|
|
841 }
|
|
|
842
|
|
34
|
843 return (uintptr_t) n;
|
|
0
|
844 }
|
|
|
845
|
|
2
|
846 for (i = 0; i < size; i++) {
|
|
|
847 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
848 *dst++ = '%';
|
|
|
849 *dst++ = hex[*src >> 4];
|
|
|
850 *dst++ = hex[*src & 0xf];
|
|
|
851 src++;
|
|
0
|
852
|
|
2
|
853 } else {
|
|
|
854 *dst++ = *src++;
|
|
|
855 }
|
|
0
|
856 }
|
|
|
857
|
|
34
|
858 return (uintptr_t) dst;
|
|
0
|
859 }
|
