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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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74
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65 * %N '\n'
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10
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66 * %c char
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67 * %% %
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4
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68 *
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10
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69 * TODO:
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70 * %M ngx_msec_t
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71 *
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72 * reserved:
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73 * %t ptrdiff_t
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74 * %S null-teminated wchar string
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75 * %C wchar
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4
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76 */
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77
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10
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78
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52
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79 u_char * ngx_cdecl
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42
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80 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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81 {
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82 u_char *p;
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83 va_list args;
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84
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85 va_start(args, fmt);
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86 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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87 va_end(args);
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88
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89 return p;
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90 }
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91
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92
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52
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93 u_char * ngx_cdecl
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42
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94 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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95 {
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10
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96 u_char *p;
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97 va_list args;
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98
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99 va_start(args, fmt);
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100 p = ngx_vsnprintf(buf, max, fmt, args);
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101 va_end(args);
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102
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103 return p;
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104 }
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105
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4
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106
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42
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107 u_char *
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108 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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109 {
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28
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110 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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111 /*
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112 * really we need temp[NGX_INT64_LEN] only,
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42
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113 * but icc issues the warning
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28
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114 */
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10
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115 int d;
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116 size_t len;
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117 uint32_t ui32;
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118 int64_t i64;
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119 uint64_t ui64;
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120 ngx_str_t *s;
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42
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121 ngx_uint_t width, sign, hexadecimal, max_width;
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10
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122 static u_char hex[] = "0123456789abcdef";
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123 static u_char HEX[] = "0123456789ABCDEF";
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4
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124
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10
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125 if (max == 0) {
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126 return buf;
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127 }
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128
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129 last = buf + max;
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130
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131 while (*fmt && buf < last) {
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132
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133 /*
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134 * "buf < last" means that we could copy at least one character:
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135 * the plain character, "%%", "%c", and minus without the checking
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136 */
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137
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4
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138 if (*fmt == '%') {
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139
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10
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140 i64 = 0;
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141 ui64 = 0;
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142
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143 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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144 width = 0;
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145 sign = 1;
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146 hexadecimal = 0;
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42
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147 max_width = 0;
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4
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148
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26
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149 p = temp + NGX_INT64_LEN;
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4
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150
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151 while (*fmt >= '0' && *fmt <= '9') {
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152 width = width * 10 + *fmt++ - '0';
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153 }
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154
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155
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156 for ( ;; ) {
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157 switch (*fmt) {
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158
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159 case 'u':
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160 sign = 0;
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161 fmt++;
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162 continue;
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163
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16
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164 case 'm':
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42
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165 max_width = 1;
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16
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166 fmt++;
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167 continue;
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168
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10
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169 case 'X':
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170 hexadecimal = 2;
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171 sign = 0;
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172 fmt++;
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173 continue;
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174
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4
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175 case 'x':
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176 hexadecimal = 1;
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10
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177 sign = 0;
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4
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178 fmt++;
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179 continue;
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180
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181 default:
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182 break;
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183 }
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184
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185 break;
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186 }
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187
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188
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189 switch (*fmt) {
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190
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10
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191 case 'V':
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192 s = va_arg(args, ngx_str_t *);
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4
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193
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10
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194 len = (buf + s->len < last) ? s->len : (size_t) (last - buf);
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195 buf = ngx_cpymem(buf, s->data, len);
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196 fmt++;
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4
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197
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10
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198 continue;
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4
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199
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200 case 's':
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10
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201 p = va_arg(args, u_char *);
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4
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202
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10
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203 while (*p && buf < last) {
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4
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204 *buf++ = *p++;
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205 }
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206 fmt++;
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207
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208 continue;
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209
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10
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210 case 'O':
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211 i64 = (int64_t) va_arg(args, off_t);
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212 sign = 1;
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213 break;
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214
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215 case 'P':
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216 i64 = (int64_t) va_arg(args, ngx_pid_t);
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217 sign = 1;
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218 break;
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219
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220 case 'T':
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221 i64 = (int64_t) va_arg(args, time_t);
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222 sign = 1;
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223 break;
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224
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225 case 'z':
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226 if (sign) {
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227 i64 = (int64_t) va_arg(args, ssize_t);
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228 } else {
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229 ui64 = (uint64_t) va_arg(args, size_t);
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230 }
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231 break;
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232
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233 case 'i':
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234 if (sign) {
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235 i64 = (int64_t) va_arg(args, ngx_int_t);
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236 } else {
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237 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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238 }
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42
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239
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240 if (max_width) {
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241 width = NGX_INT_T_LEN;
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242 }
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243
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10
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244 break;
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245
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246 case 'd':
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247 if (sign) {
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248 i64 = (int64_t) va_arg(args, int);
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249 } else {
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250 ui64 = (uint64_t) va_arg(args, u_int);
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251 }
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252 break;
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253
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254 case 'l':
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255 if (sign) {
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256 i64 = (int64_t) va_arg(args, long);
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257 } else {
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258 ui64 = (uint64_t) va_arg(args, u_long);
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259 }
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260 break;
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261
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262 case 'D':
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263 if (sign) {
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264 i64 = (int64_t) va_arg(args, int32_t);
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265 } else {
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266 ui64 = (uint64_t) va_arg(args, uint32_t);
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267 }
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268 break;
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269
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270 case 'L':
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271 if (sign) {
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272 i64 = va_arg(args, int64_t);
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273 } else {
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274 ui64 = va_arg(args, uint64_t);
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275 }
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276 break;
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277
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42
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278 case 'A':
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279 if (sign) {
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280 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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281 } else {
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44
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282 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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283 }
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284
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285 if (max_width) {
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286 width = NGX_ATOMIC_T_LEN;
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287 }
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288
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289 break;
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290
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10
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291 #if !(NGX_WIN32)
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292 case 'r':
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293 i64 = (int64_t) va_arg(args, rlim_t);
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294 sign = 1;
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295 break;
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296 #endif
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297
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298 case 'p':
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299 ui64 = (uintptr_t) va_arg(args, void *);
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300 hexadecimal = 2;
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301 sign = 0;
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302 zero = '0';
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303 width = 8;
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304 break;
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305
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6
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306 case 'c':
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10
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307 d = va_arg(args, int);
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6
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308 *buf++ = (u_char) (d & 0xff);
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309 fmt++;
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310
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311 continue;
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312
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10
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313 case 'Z':
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314 *buf++ = '\0';
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315 fmt++;
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316
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317 continue;
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318
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74
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319 case 'N':
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320 #if (NGX_WIN32)
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321 *buf++ = CR;
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322 #endif
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323 *buf++ = LF;
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324 fmt++;
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325
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326 continue;
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327
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4
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328 case '%':
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329 *buf++ = '%';
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330 fmt++;
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331
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332 continue;
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333
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334 default:
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335 *buf++ = *fmt++;
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336
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337 continue;
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338 }
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339
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10
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340 if (sign) {
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341 if (i64 < 0) {
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342 *buf++ = '-';
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343 ui64 = (uint64_t) -i64;
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344
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345 } else {
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346 ui64 = (uint64_t) i64;
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347 }
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348 }
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349
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350 if (hexadecimal == 1) {
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351 do {
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352
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353 /* the "(uint32_t)" cast disables the BCC's warning */
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354 *--p = hex[(uint32_t) (ui64 & 0xf)];
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355
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356 } while (ui64 >>= 4);
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357
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358 } else if (hexadecimal == 2) {
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359 do {
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360
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361 /* the "(uint32_t)" cast disables the BCC's warning */
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362 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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363
|
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364 } while (ui64 >>= 4);
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365
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366 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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367
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368 /*
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369 * To divide 64-bit number and to find the remainder
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370 * on the x86 platform gcc and icc call the libc functions
|
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371 * [u]divdi3() and [u]moddi3(), they call another function
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42
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372 * in its turn. On FreeBSD it is the qdivrem() function,
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10
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373 * its source code is about 170 lines of the code.
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374 * The glibc counterpart is about 150 lines of the code.
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375 *
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42
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376 * For 32-bit numbers and some divisors gcc and icc use
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377 * the inlined multiplication and shifts. For example,
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378 * unsigned "i32 / 10" is compiled to
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379 *
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380 * (i32 * 0xCCCCCCCD) >> 35
|
|
10
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381 */
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382
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383 ui32 = (uint32_t) ui64;
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384
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385 do {
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386 *--p = (u_char) (ui32 % 10 + '0');
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387 } while (ui32 /= 10);
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388
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|
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389 } else {
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390 do {
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391 *--p = (u_char) (ui64 % 10 + '0');
|
|
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392 } while (ui64 /= 10);
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393 }
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394
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26
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395 len = (temp + NGX_INT64_LEN) - p;
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4
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396
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10
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397 while (len++ < width && buf < last) {
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398 *buf++ = zero;
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4
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399 }
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400
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26
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401 len = (temp + NGX_INT64_LEN) - p;
|
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10
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402 if (buf + len > last) {
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403 len = last - buf;
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404 }
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405
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406 buf = ngx_cpymem(buf, p, len);
|
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4
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407
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|
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408 fmt++;
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409
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|
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410 } else {
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411 *buf++ = *fmt++;
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412 }
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413 }
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414
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415 return buf;
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|
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416 }
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417
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418
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42
|
419 ngx_int_t
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|
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420 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
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421 {
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|
|
422 if (n == 0) {
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423 return 0;
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|
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424 }
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|
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425
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|
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426 n--;
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427
|
|
|
428 for ( ;; ) {
|
|
|
429 if (s1[n] != s2[n]) {
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430 return s1[n] - s2[n];
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|
|
431 }
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432
|
|
|
433 if (n == 0) {
|
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|
434 return 0;
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|
|
435 }
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436
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|
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437 n--;
|
|
|
438 }
|
|
|
439 }
|
|
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440
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|
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441
|
|
42
|
442 ngx_int_t
|
|
|
443 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
444 {
|
|
|
445 u_char c1, c2;
|
|
|
446
|
|
|
447 if (n == 0) {
|
|
|
448 return 0;
|
|
|
449 }
|
|
|
450
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|
|
451 n--;
|
|
|
452
|
|
|
453 for ( ;; ) {
|
|
|
454 c1 = s1[n];
|
|
|
455 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
456 c1 -= 'a' - 'A';
|
|
|
457 }
|
|
|
458
|
|
|
459 c2 = s2[n];
|
|
|
460 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
461 c2 -= 'a' - 'A';
|
|
|
462 }
|
|
|
463
|
|
|
464 if (c1 != c2) {
|
|
|
465 return c1 - c2;
|
|
|
466 }
|
|
|
467
|
|
|
468 if (n == 0) {
|
|
|
469 return 0;
|
|
|
470 }
|
|
|
471
|
|
|
472 n--;
|
|
|
473 }
|
|
|
474 }
|
|
|
475
|
|
|
476
|
|
42
|
477 ngx_int_t
|
|
|
478 ngx_atoi(u_char *line, size_t n)
|
|
0
|
479 {
|
|
|
480 ngx_int_t value;
|
|
|
481
|
|
|
482 if (n == 0) {
|
|
|
483 return NGX_ERROR;
|
|
|
484 }
|
|
|
485
|
|
|
486 for (value = 0; n--; line++) {
|
|
|
487 if (*line < '0' || *line > '9') {
|
|
|
488 return NGX_ERROR;
|
|
|
489 }
|
|
|
490
|
|
|
491 value = value * 10 + (*line - '0');
|
|
|
492 }
|
|
|
493
|
|
|
494 if (value < 0) {
|
|
|
495 return NGX_ERROR;
|
|
|
496
|
|
|
497 } else {
|
|
|
498 return value;
|
|
|
499 }
|
|
|
500 }
|
|
|
501
|
|
|
502
|
|
50
|
503 ssize_t
|
|
|
504 ngx_atosz(u_char *line, size_t n)
|
|
|
505 {
|
|
|
506 ssize_t value;
|
|
|
507
|
|
|
508 if (n == 0) {
|
|
|
509 return NGX_ERROR;
|
|
|
510 }
|
|
|
511
|
|
|
512 for (value = 0; n--; line++) {
|
|
|
513 if (*line < '0' || *line > '9') {
|
|
|
514 return NGX_ERROR;
|
|
|
515 }
|
|
|
516
|
|
|
517 value = value * 10 + (*line - '0');
|
|
|
518 }
|
|
|
519
|
|
|
520 if (value < 0) {
|
|
|
521 return NGX_ERROR;
|
|
|
522
|
|
|
523 } else {
|
|
|
524 return value;
|
|
|
525 }
|
|
|
526 }
|
|
|
527
|
|
|
528
|
|
|
529 off_t
|
|
|
530 ngx_atoof(u_char *line, size_t n)
|
|
|
531 {
|
|
|
532 off_t value;
|
|
|
533
|
|
|
534 if (n == 0) {
|
|
|
535 return NGX_ERROR;
|
|
|
536 }
|
|
|
537
|
|
|
538 for (value = 0; n--; line++) {
|
|
|
539 if (*line < '0' || *line > '9') {
|
|
|
540 return NGX_ERROR;
|
|
|
541 }
|
|
|
542
|
|
|
543 value = value * 10 + (*line - '0');
|
|
|
544 }
|
|
|
545
|
|
|
546 if (value < 0) {
|
|
|
547 return NGX_ERROR;
|
|
|
548
|
|
|
549 } else {
|
|
|
550 return value;
|
|
|
551 }
|
|
|
552 }
|
|
|
553
|
|
|
554
|
|
|
555 time_t
|
|
|
556 ngx_atotm(u_char *line, size_t n)
|
|
|
557 {
|
|
|
558 time_t value;
|
|
|
559
|
|
|
560 if (n == 0) {
|
|
|
561 return NGX_ERROR;
|
|
|
562 }
|
|
|
563
|
|
|
564 for (value = 0; n--; line++) {
|
|
|
565 if (*line < '0' || *line > '9') {
|
|
|
566 return NGX_ERROR;
|
|
|
567 }
|
|
|
568
|
|
|
569 value = value * 10 + (*line - '0');
|
|
|
570 }
|
|
|
571
|
|
|
572 if (value < 0) {
|
|
|
573 return NGX_ERROR;
|
|
|
574
|
|
|
575 } else {
|
|
|
576 return value;
|
|
|
577 }
|
|
|
578 }
|
|
|
579
|
|
|
580
|
|
42
|
581 ngx_int_t
|
|
|
582 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
583 {
|
|
|
584 u_char ch;
|
|
|
585 ngx_int_t value;
|
|
|
586
|
|
|
587 if (n == 0) {
|
|
|
588 return NGX_ERROR;
|
|
|
589 }
|
|
|
590
|
|
|
591 for (value = 0; n--; line++) {
|
|
|
592 ch = *line;
|
|
|
593
|
|
|
594 if (ch >= '0' && ch <= '9') {
|
|
|
595 value = value * 16 + (ch - '0');
|
|
|
596 continue;
|
|
|
597 }
|
|
|
598
|
|
|
599 if (ch >= 'A' && ch <= 'F') {
|
|
|
600 value = value * 16 + (ch - 'A' + 10);
|
|
|
601 continue;
|
|
|
602 }
|
|
|
603
|
|
|
604 if (ch >= 'a' && ch <= 'f') {
|
|
|
605 value = value * 16 + (ch - 'a' + 10);
|
|
|
606 continue;
|
|
|
607 }
|
|
|
608
|
|
|
609 return NGX_ERROR;
|
|
|
610 }
|
|
|
611
|
|
|
612 if (value < 0) {
|
|
|
613 return NGX_ERROR;
|
|
|
614
|
|
|
615 } else {
|
|
|
616 return value;
|
|
|
617 }
|
|
|
618 }
|
|
|
619
|
|
|
620
|
|
42
|
621 void
|
|
|
622 ngx_md5_text(u_char *text, u_char *md5)
|
|
0
|
623 {
|
|
|
624 int i;
|
|
|
625 static u_char hex[] = "0123456789abcdef";
|
|
|
626
|
|
|
627 for (i = 0; i < 16; i++) {
|
|
|
628 *text++ = hex[md5[i] >> 4];
|
|
|
629 *text++ = hex[md5[i] & 0xf];
|
|
|
630 }
|
|
|
631
|
|
|
632 *text = '\0';
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
42
|
636 void
|
|
|
637 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
638 {
|
|
|
639 u_char *d, *s;
|
|
|
640 size_t len;
|
|
|
641 static u_char basis64[] =
|
|
|
642 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
643
|
|
|
644 len = src->len;
|
|
|
645 s = src->data;
|
|
|
646 d = dst->data;
|
|
|
647
|
|
|
648 while (len > 2) {
|
|
|
649 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
650 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
651 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
652 *d++ = basis64[s[2] & 0x3f];
|
|
|
653
|
|
|
654 s += 3;
|
|
|
655 len -= 3;
|
|
|
656 }
|
|
|
657
|
|
|
658 if (len) {
|
|
|
659 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
660
|
|
|
661 if (len == 1) {
|
|
|
662 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
663 *d++ = '=';
|
|
|
664
|
|
|
665 } else {
|
|
|
666 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
667 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
668 }
|
|
|
669
|
|
|
670 *d++ = '=';
|
|
|
671 }
|
|
|
672
|
|
|
673 dst->len = d - dst->data;
|
|
|
674 }
|
|
|
675
|
|
|
676
|
|
42
|
677 ngx_int_t
|
|
|
678 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
679 {
|
|
|
680 size_t len;
|
|
|
681 u_char *d, *s;
|
|
|
682 static u_char basis64[] =
|
|
|
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, 62, 77, 77, 77, 63,
|
|
|
686 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
687 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
688 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
689 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
690 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
|
691
|
|
|
692 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
693 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
694 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
695 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
696 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
697 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
698 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
699 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
|
700
|
|
|
701 for (len = 0; len < src->len; len++) {
|
|
|
702 if (src->data[len] == '=') {
|
|
|
703 break;
|
|
|
704 }
|
|
|
705
|
|
|
706 if (basis64[src->data[len]] == 77) {
|
|
|
707 return NGX_ERROR;
|
|
|
708 }
|
|
|
709 }
|
|
|
710
|
|
|
711 if (len % 4 == 1) {
|
|
|
712 return NGX_ERROR;
|
|
|
713 }
|
|
|
714
|
|
|
715 s = src->data;
|
|
|
716 d = dst->data;
|
|
|
717
|
|
|
718 while (len > 3) {
|
|
|
719 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
720 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
721 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
722
|
|
|
723 s += 4;
|
|
|
724 len -= 4;
|
|
|
725 }
|
|
|
726
|
|
|
727 if (len > 1) {
|
|
|
728 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
729 }
|
|
|
730
|
|
|
731 if (len > 2) {
|
|
|
732 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
733 }
|
|
|
734
|
|
|
735 dst->len = d - dst->data;
|
|
|
736
|
|
|
737 return NGX_OK;
|
|
|
738 }
|
|
|
739
|
|
|
740
|
|
72
|
741 size_t
|
|
|
742 ngx_utf_length(ngx_str_t *utf)
|
|
|
743 {
|
|
|
744 u_char c;
|
|
|
745 size_t len;
|
|
|
746 ngx_uint_t i;
|
|
|
747
|
|
|
748 for (len = 0, i = 0; i < utf->len; len++, i++) {
|
|
|
749
|
|
|
750 c = utf->data[i];
|
|
|
751
|
|
|
752 if (c < 0x80) {
|
|
|
753 continue;
|
|
|
754 }
|
|
|
755
|
|
|
756 if (c < 0xC0) {
|
|
|
757 /* invalid utf */
|
|
|
758 return utf->len;
|
|
|
759 }
|
|
|
760
|
|
|
761 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
762 i++;
|
|
|
763 }
|
|
|
764 }
|
|
|
765
|
|
|
766 return len;
|
|
|
767 }
|
|
|
768
|
|
|
769
|
|
42
|
770 uintptr_t
|
|
|
771 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
772 {
|
|
10
|
773 ngx_uint_t i, n;
|
|
|
774 uint32_t *escape;
|
|
2
|
775 static u_char hex[] = "0123456789abcdef";
|
|
10
|
776
|
|
42
|
777 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
778
|
|
10
|
779 static uint32_t uri[] =
|
|
2
|
780 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
781
|
|
2
|
782 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
783 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
2
|
784
|
|
|
785 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
786 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
787
|
|
|
788 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
789 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
790
|
|
2
|
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 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
795
|
|
42
|
796 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
797
|
|
|
798 static uint32_t args[] =
|
|
|
799 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
800
|
|
|
801 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
802 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
803
|
|
|
804 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
805 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
806
|
|
|
807 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
808 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
809
|
|
|
810 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
811 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
812 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
813 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
814
|
|
|
815 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
|
816
|
|
10
|
817 static uint32_t html[] =
|
|
|
818 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
819
|
|
|
820 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
821 0x800000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
10
|
822
|
|
|
823 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
824 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
825
|
|
|
826 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
827 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
828
|
|
|
829 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
830 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
831 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
832 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
833
|
|
|
834
|
|
34
|
835 switch (type) {
|
|
|
836 case NGX_ESCAPE_HTML:
|
|
10
|
837 escape = html;
|
|
34
|
838 break;
|
|
|
839 case NGX_ESCAPE_ARGS:
|
|
|
840 escape = args;
|
|
|
841 break;
|
|
|
842 default:
|
|
10
|
843 escape = uri;
|
|
34
|
844 break;
|
|
10
|
845 }
|
|
|
846
|
|
2
|
847 if (dst == NULL) {
|
|
|
848
|
|
|
849 /* find the number of the characters to be escaped */
|
|
0
|
850
|
|
2
|
851 n = 0;
|
|
|
852
|
|
|
853 for (i = 0; i < size; i++) {
|
|
|
854 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
855 n++;
|
|
|
856 }
|
|
|
857 src++;
|
|
|
858 }
|
|
|
859
|
|
34
|
860 return (uintptr_t) n;
|
|
0
|
861 }
|
|
|
862
|
|
2
|
863 for (i = 0; i < size; i++) {
|
|
|
864 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
865 *dst++ = '%';
|
|
|
866 *dst++ = hex[*src >> 4];
|
|
|
867 *dst++ = hex[*src & 0xf];
|
|
|
868 src++;
|
|
0
|
869
|
|
2
|
870 } else {
|
|
|
871 *dst++ = *src++;
|
|
|
872 }
|
|
0
|
873 }
|
|
|
874
|
|
34
|
875 return (uintptr_t) dst;
|
|
0
|
876 }
|
