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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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18 for (/* void */; --n; dst++, src++) {
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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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37 if (!(dst = ngx_palloc(pool, src->len))) {
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38 return NULL;
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39 }
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40
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41 ngx_memcpy(dst, src->data, src->len);
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42
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43 return dst;
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44 }
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45
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46
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4
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47 /*
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48 * supported formats:
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22
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49 * %[0][width][x][X]O off_t
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10
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50 * %[0][width]T time_t
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51 * %[0][width][u][x|X]z ssize_t/size_t
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52 * %[0][width][u][x|X]d int/u_int
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53 * %[0][width][u][x|X]l long
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54 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
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55 * %[0][width][u][x|X]D int32_t/uint32_t
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56 * %[0][width][u][x|X]L int64_t/uint64_t
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42
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57 * %[0][width|m][u][x|X]A ngx_atomic_int_t
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10
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58 * %P ngx_pid_t
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59 * %r rlim_t
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60 * %p pointer
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61 * %V pointer to ngx_str_t
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62 * %s null-terminated string
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63 * %Z '\0'
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64 * %c char
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65 * %% %
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4
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66 *
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10
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67 * TODO:
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68 * %M ngx_msec_t
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69 *
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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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42
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77 u_char *
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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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42
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91 u_char *
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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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28
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108 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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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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10
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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_str_t *s;
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42
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119 ngx_uint_t width, sign, hexadecimal, max_width;
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10
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120 static u_char hex[] = "0123456789abcdef";
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121 static u_char HEX[] = "0123456789ABCDEF";
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4
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122
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10
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123 if (max == 0) {
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124 return buf;
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125 }
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126
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127 last = buf + max;
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128
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129 while (*fmt && buf < last) {
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130
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131 /*
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132 * "buf < last" means that we could copy at least one character:
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133 * the plain character, "%%", "%c", and minus without the checking
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134 */
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135
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4
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136 if (*fmt == '%') {
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137
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10
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138 i64 = 0;
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139 ui64 = 0;
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140
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141 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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142 width = 0;
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143 sign = 1;
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144 hexadecimal = 0;
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42
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145 max_width = 0;
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4
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146
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26
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147 p = temp + NGX_INT64_LEN;
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4
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148
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149 while (*fmt >= '0' && *fmt <= '9') {
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150 width = width * 10 + *fmt++ - '0';
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151 }
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152
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153
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154 for ( ;; ) {
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155 switch (*fmt) {
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156
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157 case 'u':
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158 sign = 0;
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159 fmt++;
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160 continue;
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161
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16
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162 case 'm':
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42
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163 max_width = 1;
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16
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164 fmt++;
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165 continue;
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166
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10
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167 case 'X':
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168 hexadecimal = 2;
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169 sign = 0;
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170 fmt++;
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171 continue;
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172
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4
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173 case 'x':
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174 hexadecimal = 1;
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10
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175 sign = 0;
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4
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176 fmt++;
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177 continue;
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178
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179 default:
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180 break;
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181 }
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182
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183 break;
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184 }
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185
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186
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187 switch (*fmt) {
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188
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10
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189 case 'V':
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190 s = va_arg(args, ngx_str_t *);
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4
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191
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10
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192 len = (buf + s->len < last) ? s->len : (size_t) (last - buf);
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193 buf = ngx_cpymem(buf, s->data, len);
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194 fmt++;
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4
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195
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10
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196 continue;
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4
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197
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198 case 's':
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10
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199 p = va_arg(args, u_char *);
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4
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200
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10
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201 while (*p && buf < last) {
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4
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202 *buf++ = *p++;
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203 }
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204 fmt++;
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205
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206 continue;
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207
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10
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208 case 'O':
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209 i64 = (int64_t) va_arg(args, off_t);
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210 sign = 1;
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211 break;
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212
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213 case 'P':
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214 i64 = (int64_t) va_arg(args, ngx_pid_t);
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215 sign = 1;
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216 break;
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217
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218 case 'T':
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219 i64 = (int64_t) va_arg(args, time_t);
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220 sign = 1;
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221 break;
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222
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223 case 'z':
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224 if (sign) {
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225 i64 = (int64_t) va_arg(args, ssize_t);
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226 } else {
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227 ui64 = (uint64_t) va_arg(args, size_t);
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228 }
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229 break;
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230
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231 case 'i':
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232 if (sign) {
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233 i64 = (int64_t) va_arg(args, ngx_int_t);
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234 } else {
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235 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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236 }
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42
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237
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238 if (max_width) {
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239 width = NGX_INT_T_LEN;
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240 }
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241
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10
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242 break;
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243
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244 case 'd':
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245 if (sign) {
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246 i64 = (int64_t) va_arg(args, int);
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247 } else {
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248 ui64 = (uint64_t) va_arg(args, u_int);
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249 }
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250 break;
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251
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252 case 'l':
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253 if (sign) {
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254 i64 = (int64_t) va_arg(args, long);
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255 } else {
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256 ui64 = (uint64_t) va_arg(args, u_long);
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257 }
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258 break;
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259
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260 case 'D':
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261 if (sign) {
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262 i64 = (int64_t) va_arg(args, int32_t);
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263 } else {
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264 ui64 = (uint64_t) va_arg(args, uint32_t);
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265 }
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266 break;
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267
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268 case 'L':
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269 if (sign) {
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270 i64 = va_arg(args, int64_t);
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271 } else {
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272 ui64 = va_arg(args, uint64_t);
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273 }
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274 break;
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275
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42
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276 case 'A':
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277 if (sign) {
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278 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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279 } else {
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280 ui64 = (uint64_t) va_arg(args, ngx_atomic_int_t);
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281 }
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282
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283 if (max_width) {
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284 width = NGX_ATOMIC_T_LEN;
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285 }
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286
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287 break;
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288
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10
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289 #if !(NGX_WIN32)
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290 case 'r':
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291 i64 = (int64_t) va_arg(args, rlim_t);
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292 sign = 1;
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293 break;
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294 #endif
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295
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296 case 'p':
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297 ui64 = (uintptr_t) va_arg(args, void *);
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298 hexadecimal = 2;
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299 sign = 0;
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300 zero = '0';
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301 width = 8;
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302 break;
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303
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6
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304 case 'c':
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10
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305 d = va_arg(args, int);
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6
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306 *buf++ = (u_char) (d & 0xff);
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307 fmt++;
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308
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309 continue;
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310
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10
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311 case 'Z':
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312 *buf++ = '\0';
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313 fmt++;
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314
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315 continue;
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316
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4
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317 case '%':
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318 *buf++ = '%';
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319 fmt++;
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320
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321 continue;
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322
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323 default:
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324 *buf++ = *fmt++;
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325
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326 continue;
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327 }
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328
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10
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329 if (sign) {
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330 if (i64 < 0) {
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331 *buf++ = '-';
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332 ui64 = (uint64_t) -i64;
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333
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334 } else {
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335 ui64 = (uint64_t) i64;
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336 }
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337 }
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338
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339 if (hexadecimal == 1) {
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340 do {
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341
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342 /* the "(uint32_t)" cast disables the BCC's warning */
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343 *--p = hex[(uint32_t) (ui64 & 0xf)];
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344
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345 } while (ui64 >>= 4);
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346
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347 } else if (hexadecimal == 2) {
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348 do {
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349
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350 /* the "(uint32_t)" cast disables the BCC's warning */
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351 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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352
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353 } while (ui64 >>= 4);
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354
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355 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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356
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357 /*
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358 * To divide 64-bit number and to find the remainder
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359 * on the x86 platform gcc and icc call the libc functions
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360 * [u]divdi3() and [u]moddi3(), they call another function
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42
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361 * in its turn. On FreeBSD it is the qdivrem() function,
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10
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362 * its source code is about 170 lines of the code.
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363 * The glibc counterpart is about 150 lines of the code.
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364 *
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42
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365 * For 32-bit numbers and some divisors gcc and icc use
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366 * the inlined multiplication and shifts. For example,
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367 * unsigned "i32 / 10" is compiled to
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368 *
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369 * (i32 * 0xCCCCCCCD) >> 35
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10
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370 */
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371
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372 ui32 = (uint32_t) ui64;
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373
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374 do {
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375 *--p = (u_char) (ui32 % 10 + '0');
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376 } while (ui32 /= 10);
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377
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378 } else {
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379 do {
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380 *--p = (u_char) (ui64 % 10 + '0');
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381 } while (ui64 /= 10);
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382 }
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383
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26
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384 len = (temp + NGX_INT64_LEN) - p;
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4
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385
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10
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386 while (len++ < width && buf < last) {
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387 *buf++ = zero;
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4
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388 }
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389
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26
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390 len = (temp + NGX_INT64_LEN) - p;
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10
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391 if (buf + len > last) {
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392 len = last - buf;
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393 }
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394
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395 buf = ngx_cpymem(buf, p, len);
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4
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396
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397 fmt++;
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398
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399 } else {
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400 *buf++ = *fmt++;
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401 }
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402 }
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403
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404 return buf;
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405 }
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406
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407
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42
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408 ngx_int_t
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409 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
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0
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410 {
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411 if (n == 0) {
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412 return 0;
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413 }
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414
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415 n--;
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416
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|
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417 for ( ;; ) {
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418 if (s1[n] != s2[n]) {
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419 return s1[n] - s2[n];
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420 }
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421
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422 if (n == 0) {
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423 return 0;
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424 }
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425
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426 n--;
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427 }
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428 }
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429
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430
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42
|
431 ngx_int_t
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|
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432 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
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4
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433 {
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434 u_char c1, c2;
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435
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|
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436 if (n == 0) {
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437 return 0;
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|
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438 }
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439
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|
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440 n--;
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441
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|
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442 for ( ;; ) {
|
|
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443 c1 = s1[n];
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|
444 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
445 c1 -= 'a' - 'A';
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|
|
446 }
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447
|
|
|
448 c2 = s2[n];
|
|
|
449 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
450 c2 -= 'a' - 'A';
|
|
|
451 }
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452
|
|
|
453 if (c1 != c2) {
|
|
|
454 return c1 - c2;
|
|
|
455 }
|
|
|
456
|
|
|
457 if (n == 0) {
|
|
|
458 return 0;
|
|
|
459 }
|
|
|
460
|
|
|
461 n--;
|
|
|
462 }
|
|
|
463 }
|
|
|
464
|
|
|
465
|
|
42
|
466 ngx_int_t
|
|
|
467 ngx_atoi(u_char *line, size_t n)
|
|
0
|
468 {
|
|
|
469 ngx_int_t value;
|
|
|
470
|
|
|
471 if (n == 0) {
|
|
|
472 return NGX_ERROR;
|
|
|
473 }
|
|
|
474
|
|
|
475 for (value = 0; n--; line++) {
|
|
|
476 if (*line < '0' || *line > '9') {
|
|
|
477 return NGX_ERROR;
|
|
|
478 }
|
|
|
479
|
|
|
480 value = value * 10 + (*line - '0');
|
|
|
481 }
|
|
|
482
|
|
|
483 if (value < 0) {
|
|
|
484 return NGX_ERROR;
|
|
|
485
|
|
|
486 } else {
|
|
|
487 return value;
|
|
|
488 }
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
42
|
492 ngx_int_t
|
|
|
493 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
494 {
|
|
|
495 u_char ch;
|
|
|
496 ngx_int_t value;
|
|
|
497
|
|
|
498 if (n == 0) {
|
|
|
499 return NGX_ERROR;
|
|
|
500 }
|
|
|
501
|
|
|
502 for (value = 0; n--; line++) {
|
|
|
503 ch = *line;
|
|
|
504
|
|
|
505 if (ch >= '0' && ch <= '9') {
|
|
|
506 value = value * 16 + (ch - '0');
|
|
|
507 continue;
|
|
|
508 }
|
|
|
509
|
|
|
510 if (ch >= 'A' && ch <= 'F') {
|
|
|
511 value = value * 16 + (ch - 'A' + 10);
|
|
|
512 continue;
|
|
|
513 }
|
|
|
514
|
|
|
515 if (ch >= 'a' && ch <= 'f') {
|
|
|
516 value = value * 16 + (ch - 'a' + 10);
|
|
|
517 continue;
|
|
|
518 }
|
|
|
519
|
|
|
520 return NGX_ERROR;
|
|
|
521 }
|
|
|
522
|
|
|
523 if (value < 0) {
|
|
|
524 return NGX_ERROR;
|
|
|
525
|
|
|
526 } else {
|
|
|
527 return value;
|
|
|
528 }
|
|
|
529 }
|
|
|
530
|
|
|
531
|
|
42
|
532 void
|
|
|
533 ngx_md5_text(u_char *text, u_char *md5)
|
|
0
|
534 {
|
|
|
535 int i;
|
|
|
536 static u_char hex[] = "0123456789abcdef";
|
|
|
537
|
|
|
538 for (i = 0; i < 16; i++) {
|
|
|
539 *text++ = hex[md5[i] >> 4];
|
|
|
540 *text++ = hex[md5[i] & 0xf];
|
|
|
541 }
|
|
|
542
|
|
|
543 *text = '\0';
|
|
|
544 }
|
|
|
545
|
|
|
546
|
|
42
|
547 void
|
|
|
548 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
549 {
|
|
|
550 u_char *d, *s;
|
|
|
551 size_t len;
|
|
|
552 static u_char basis64[] =
|
|
|
553 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
554
|
|
|
555 len = src->len;
|
|
|
556 s = src->data;
|
|
|
557 d = dst->data;
|
|
|
558
|
|
|
559 while (len > 2) {
|
|
|
560 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
561 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
562 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
563 *d++ = basis64[s[2] & 0x3f];
|
|
|
564
|
|
|
565 s += 3;
|
|
|
566 len -= 3;
|
|
|
567 }
|
|
|
568
|
|
|
569 if (len) {
|
|
|
570 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
571
|
|
|
572 if (len == 1) {
|
|
|
573 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
574 *d++ = '=';
|
|
|
575
|
|
|
576 } else {
|
|
|
577 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
578 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
579 }
|
|
|
580
|
|
|
581 *d++ = '=';
|
|
|
582 }
|
|
|
583
|
|
|
584 dst->len = d - dst->data;
|
|
|
585 }
|
|
|
586
|
|
|
587
|
|
42
|
588 ngx_int_t
|
|
|
589 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
590 {
|
|
|
591 size_t len;
|
|
|
592 u_char *d, *s;
|
|
|
593 static u_char basis64[] =
|
|
|
594 { 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
595 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
596 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
597 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
598 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
599 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
600 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
601 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
|
602
|
|
|
603 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
604 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
605 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
606 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
607 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
608 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
609 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
610 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
|
611
|
|
|
612 for (len = 0; len < src->len; len++) {
|
|
|
613 if (src->data[len] == '=') {
|
|
|
614 break;
|
|
|
615 }
|
|
|
616
|
|
|
617 if (basis64[src->data[len]] == 77) {
|
|
|
618 return NGX_ERROR;
|
|
|
619 }
|
|
|
620 }
|
|
|
621
|
|
|
622 if (len % 4 == 1) {
|
|
|
623 return NGX_ERROR;
|
|
|
624 }
|
|
|
625
|
|
|
626 s = src->data;
|
|
|
627 d = dst->data;
|
|
|
628
|
|
|
629 while (len > 3) {
|
|
|
630 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
631 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
632 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
633
|
|
|
634 s += 4;
|
|
|
635 len -= 4;
|
|
|
636 }
|
|
|
637
|
|
|
638 if (len > 1) {
|
|
|
639 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
640 }
|
|
|
641
|
|
|
642 if (len > 2) {
|
|
|
643 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
644 }
|
|
|
645
|
|
|
646 dst->len = d - dst->data;
|
|
|
647
|
|
|
648 return NGX_OK;
|
|
|
649 }
|
|
|
650
|
|
|
651
|
|
42
|
652 uintptr_t
|
|
|
653 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
654 {
|
|
10
|
655 ngx_uint_t i, n;
|
|
|
656 uint32_t *escape;
|
|
2
|
657 static u_char hex[] = "0123456789abcdef";
|
|
10
|
658
|
|
42
|
659 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
660
|
|
10
|
661 static uint32_t uri[] =
|
|
2
|
662 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
663
|
|
2
|
664 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
665 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
2
|
666
|
|
|
667 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
668 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
669
|
|
|
670 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
671 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
672
|
|
2
|
673 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
674 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
675 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
676 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
677
|
|
42
|
678 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
679
|
|
|
680 static uint32_t args[] =
|
|
|
681 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
682
|
|
|
683 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
684 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
685
|
|
|
686 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
687 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
688
|
|
|
689 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
690 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
691
|
|
|
692 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
693 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
694 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
695 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
696
|
|
|
697 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
|
698
|
|
10
|
699 static uint32_t html[] =
|
|
|
700 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
701
|
|
|
702 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
703 0x800000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
10
|
704
|
|
|
705 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
706 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
707
|
|
|
708 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
709 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
710
|
|
|
711 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
712 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
713 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
714 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
715
|
|
|
716
|
|
34
|
717 switch (type) {
|
|
|
718 case NGX_ESCAPE_HTML:
|
|
10
|
719 escape = html;
|
|
34
|
720 break;
|
|
|
721 case NGX_ESCAPE_ARGS:
|
|
|
722 escape = args;
|
|
|
723 break;
|
|
|
724 default:
|
|
10
|
725 escape = uri;
|
|
34
|
726 break;
|
|
10
|
727 }
|
|
|
728
|
|
2
|
729 if (dst == NULL) {
|
|
|
730
|
|
|
731 /* find the number of the characters to be escaped */
|
|
0
|
732
|
|
2
|
733 n = 0;
|
|
|
734
|
|
|
735 for (i = 0; i < size; i++) {
|
|
|
736 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
737 n++;
|
|
|
738 }
|
|
|
739 src++;
|
|
|
740 }
|
|
|
741
|
|
34
|
742 return (uintptr_t) n;
|
|
0
|
743 }
|
|
|
744
|
|
2
|
745 for (i = 0; i < size; i++) {
|
|
|
746 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
747 *dst++ = '%';
|
|
|
748 *dst++ = hex[*src >> 4];
|
|
|
749 *dst++ = hex[*src & 0xf];
|
|
|
750 src++;
|
|
0
|
751
|
|
2
|
752 } else {
|
|
|
753 *dst++ = *src++;
|
|
|
754 }
|
|
0
|
755 }
|
|
|
756
|
|
34
|
757 return (uintptr_t) dst;
|
|
0
|
758 }
|
