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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9
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10
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42
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11 u_char *
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12 ngx_cpystrn(u_char *dst, u_char *src, size_t n)
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0
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13 {
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14 if (n == 0) {
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15 return dst;
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16 }
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17
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66
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18 for ( /* void */ ; --n; dst++, src++) {
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0
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19 *dst = *src;
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20
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21 if (*dst == '\0') {
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22 return dst;
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23 }
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24 }
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25
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26 *dst = '\0';
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27
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28 return dst;
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29 }
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30
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31
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42
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32 u_char *
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33 ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src)
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34
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34 {
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35 u_char *dst;
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36
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50
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37 dst = ngx_palloc(pool, src->len);
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38 if (dst == NULL) {
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34
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39 return NULL;
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40 }
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41
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42 ngx_memcpy(dst, src->data, src->len);
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43
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44 return dst;
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45 }
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46
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47
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4
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48 /*
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49 * supported formats:
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22
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50 * %[0][width][x][X]O off_t
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10
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51 * %[0][width]T time_t
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52 * %[0][width][u][x|X]z ssize_t/size_t
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53 * %[0][width][u][x|X]d int/u_int
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54 * %[0][width][u][x|X]l long
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55 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
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56 * %[0][width][u][x|X]D int32_t/uint32_t
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57 * %[0][width][u][x|X]L int64_t/uint64_t
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44
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58 * %[0][width|m][u][x|X]A ngx_atomic_int_t/ngx_atomic_uint_t
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10
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59 * %P ngx_pid_t
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106
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60 * %M ngx_msec_t
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10
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61 * %r rlim_t
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62 * %p pointer
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63 * %V pointer to ngx_str_t
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64 * %s null-terminated string
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65 * %Z '\0'
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74
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66 * %N '\n'
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10
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67 * %c char
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68 * %% %
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4
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69 *
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10
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70 * reserved:
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71 * %t ptrdiff_t
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72 * %S null-teminated wchar string
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73 * %C wchar
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4
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74 */
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75
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10
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76
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52
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77 u_char * ngx_cdecl
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42
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78 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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79 {
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80 u_char *p;
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81 va_list args;
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82
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83 va_start(args, fmt);
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84 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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85 va_end(args);
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86
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87 return p;
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88 }
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89
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90
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52
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91 u_char * ngx_cdecl
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42
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92 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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93 {
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10
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94 u_char *p;
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95 va_list args;
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96
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97 va_start(args, fmt);
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98 p = ngx_vsnprintf(buf, max, fmt, args);
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99 va_end(args);
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100
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101 return p;
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102 }
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103
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4
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104
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42
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105 u_char *
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106 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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107 {
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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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106
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223 case 'M':
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224 ui64 = (uint64_t) va_arg(args, ngx_msec_t);
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225 sign = 0;
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226 break;
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227
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10
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228 case 'z':
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229 if (sign) {
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230 i64 = (int64_t) va_arg(args, ssize_t);
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231 } else {
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232 ui64 = (uint64_t) va_arg(args, size_t);
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233 }
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234 break;
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235
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236 case 'i':
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237 if (sign) {
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238 i64 = (int64_t) va_arg(args, ngx_int_t);
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239 } else {
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240 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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241 }
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42
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242
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243 if (max_width) {
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244 width = NGX_INT_T_LEN;
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245 }
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246
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10
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247 break;
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248
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249 case 'd':
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250 if (sign) {
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251 i64 = (int64_t) va_arg(args, int);
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252 } else {
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253 ui64 = (uint64_t) va_arg(args, u_int);
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254 }
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255 break;
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256
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257 case 'l':
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258 if (sign) {
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259 i64 = (int64_t) va_arg(args, long);
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260 } else {
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261 ui64 = (uint64_t) va_arg(args, u_long);
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262 }
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263 break;
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264
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265 case 'D':
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266 if (sign) {
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267 i64 = (int64_t) va_arg(args, int32_t);
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268 } else {
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269 ui64 = (uint64_t) va_arg(args, uint32_t);
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270 }
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271 break;
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272
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273 case 'L':
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274 if (sign) {
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275 i64 = va_arg(args, int64_t);
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276 } else {
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277 ui64 = va_arg(args, uint64_t);
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278 }
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279 break;
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280
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42
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281 case 'A':
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282 if (sign) {
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283 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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284 } else {
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44
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285 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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286 }
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287
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288 if (max_width) {
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289 width = NGX_ATOMIC_T_LEN;
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290 }
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291
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292 break;
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293
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10
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294 #if !(NGX_WIN32)
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295 case 'r':
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296 i64 = (int64_t) va_arg(args, rlim_t);
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297 sign = 1;
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298 break;
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299 #endif
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300
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301 case 'p':
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302 ui64 = (uintptr_t) va_arg(args, void *);
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303 hexadecimal = 2;
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304 sign = 0;
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305 zero = '0';
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306 width = 8;
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307 break;
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308
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6
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309 case 'c':
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10
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310 d = va_arg(args, int);
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6
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311 *buf++ = (u_char) (d & 0xff);
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312 fmt++;
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313
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314 continue;
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315
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10
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316 case 'Z':
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317 *buf++ = '\0';
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318 fmt++;
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319
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320 continue;
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321
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74
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322 case 'N':
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323 #if (NGX_WIN32)
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324 *buf++ = CR;
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325 #endif
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326 *buf++ = LF;
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327 fmt++;
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328
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329 continue;
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330
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4
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331 case '%':
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332 *buf++ = '%';
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333 fmt++;
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334
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335 continue;
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336
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337 default:
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338 *buf++ = *fmt++;
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339
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340 continue;
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341 }
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342
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10
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343 if (sign) {
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344 if (i64 < 0) {
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345 *buf++ = '-';
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346 ui64 = (uint64_t) -i64;
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347
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348 } else {
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349 ui64 = (uint64_t) i64;
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350 }
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351 }
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352
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353 if (hexadecimal == 1) {
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354 do {
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355
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356 /* the "(uint32_t)" cast disables the BCC's warning */
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357 *--p = hex[(uint32_t) (ui64 & 0xf)];
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358
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359 } while (ui64 >>= 4);
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360
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361 } else if (hexadecimal == 2) {
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362 do {
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363
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364 /* the "(uint32_t)" cast disables the BCC's warning */
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365 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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366
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367 } while (ui64 >>= 4);
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368
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369 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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370
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371 /*
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372 * To divide 64-bit number and to find the remainder
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373 * on the x86 platform gcc and icc call the libc functions
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374 * [u]divdi3() and [u]moddi3(), they call another function
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42
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375 * in its turn. On FreeBSD it is the qdivrem() function,
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10
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376 * its source code is about 170 lines of the code.
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377 * The glibc counterpart is about 150 lines of the code.
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378 *
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42
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379 * For 32-bit numbers and some divisors gcc and icc use
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380 * the inlined multiplication and shifts. For example,
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381 * unsigned "i32 / 10" is compiled to
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382 *
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383 * (i32 * 0xCCCCCCCD) >> 35
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|
10
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384 */
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385
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386 ui32 = (uint32_t) ui64;
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387
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388 do {
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389 *--p = (u_char) (ui32 % 10 + '0');
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390 } while (ui32 /= 10);
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391
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|
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392 } else {
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393 do {
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394 *--p = (u_char) (ui64 % 10 + '0');
|
|
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395 } while (ui64 /= 10);
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396 }
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397
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26
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398 len = (temp + NGX_INT64_LEN) - p;
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4
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399
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10
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400 while (len++ < width && buf < last) {
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401 *buf++ = zero;
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4
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402 }
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403
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26
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404 len = (temp + NGX_INT64_LEN) - p;
|
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10
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405 if (buf + len > last) {
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406 len = last - buf;
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407 }
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408
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409 buf = ngx_cpymem(buf, p, len);
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4
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410
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|
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411 fmt++;
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412
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|
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413 } else {
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414 *buf++ = *fmt++;
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415 }
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416 }
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417
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418 return buf;
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419 }
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420
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421
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42
|
422 ngx_int_t
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|
|
423 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
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0
|
424 {
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|
|
425 if (n == 0) {
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|
|
426 return 0;
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|
|
427 }
|
|
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428
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|
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429 n--;
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430
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|
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431 for ( ;; ) {
|
|
|
432 if (s1[n] != s2[n]) {
|
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|
433 return s1[n] - s2[n];
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|
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434 }
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435
|
|
|
436 if (n == 0) {
|
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|
437 return 0;
|
|
|
438 }
|
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|
439
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|
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440 n--;
|
|
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441 }
|
|
|
442 }
|
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443
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|
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444
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|
42
|
445 ngx_int_t
|
|
|
446 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
447 {
|
|
|
448 u_char c1, c2;
|
|
|
449
|
|
|
450 if (n == 0) {
|
|
|
451 return 0;
|
|
|
452 }
|
|
|
453
|
|
|
454 n--;
|
|
|
455
|
|
|
456 for ( ;; ) {
|
|
|
457 c1 = s1[n];
|
|
|
458 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
459 c1 -= 'a' - 'A';
|
|
|
460 }
|
|
|
461
|
|
|
462 c2 = s2[n];
|
|
|
463 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
464 c2 -= 'a' - 'A';
|
|
|
465 }
|
|
|
466
|
|
|
467 if (c1 != c2) {
|
|
|
468 return c1 - c2;
|
|
|
469 }
|
|
|
470
|
|
|
471 if (n == 0) {
|
|
|
472 return 0;
|
|
|
473 }
|
|
|
474
|
|
|
475 n--;
|
|
|
476 }
|
|
|
477 }
|
|
|
478
|
|
|
479
|
|
42
|
480 ngx_int_t
|
|
|
481 ngx_atoi(u_char *line, size_t n)
|
|
0
|
482 {
|
|
|
483 ngx_int_t value;
|
|
|
484
|
|
|
485 if (n == 0) {
|
|
|
486 return NGX_ERROR;
|
|
|
487 }
|
|
|
488
|
|
|
489 for (value = 0; n--; line++) {
|
|
|
490 if (*line < '0' || *line > '9') {
|
|
|
491 return NGX_ERROR;
|
|
|
492 }
|
|
|
493
|
|
|
494 value = value * 10 + (*line - '0');
|
|
|
495 }
|
|
|
496
|
|
|
497 if (value < 0) {
|
|
|
498 return NGX_ERROR;
|
|
|
499
|
|
|
500 } else {
|
|
|
501 return value;
|
|
|
502 }
|
|
|
503 }
|
|
|
504
|
|
|
505
|
|
50
|
506 ssize_t
|
|
|
507 ngx_atosz(u_char *line, size_t n)
|
|
|
508 {
|
|
|
509 ssize_t value;
|
|
|
510
|
|
|
511 if (n == 0) {
|
|
|
512 return NGX_ERROR;
|
|
|
513 }
|
|
|
514
|
|
|
515 for (value = 0; n--; line++) {
|
|
|
516 if (*line < '0' || *line > '9') {
|
|
|
517 return NGX_ERROR;
|
|
|
518 }
|
|
|
519
|
|
|
520 value = value * 10 + (*line - '0');
|
|
|
521 }
|
|
|
522
|
|
|
523 if (value < 0) {
|
|
|
524 return NGX_ERROR;
|
|
|
525
|
|
|
526 } else {
|
|
|
527 return value;
|
|
|
528 }
|
|
|
529 }
|
|
|
530
|
|
|
531
|
|
|
532 off_t
|
|
|
533 ngx_atoof(u_char *line, size_t n)
|
|
|
534 {
|
|
|
535 off_t value;
|
|
|
536
|
|
|
537 if (n == 0) {
|
|
|
538 return NGX_ERROR;
|
|
|
539 }
|
|
|
540
|
|
|
541 for (value = 0; n--; line++) {
|
|
|
542 if (*line < '0' || *line > '9') {
|
|
|
543 return NGX_ERROR;
|
|
|
544 }
|
|
|
545
|
|
|
546 value = value * 10 + (*line - '0');
|
|
|
547 }
|
|
|
548
|
|
|
549 if (value < 0) {
|
|
|
550 return NGX_ERROR;
|
|
|
551
|
|
|
552 } else {
|
|
|
553 return value;
|
|
|
554 }
|
|
|
555 }
|
|
|
556
|
|
|
557
|
|
|
558 time_t
|
|
|
559 ngx_atotm(u_char *line, size_t n)
|
|
|
560 {
|
|
|
561 time_t value;
|
|
|
562
|
|
|
563 if (n == 0) {
|
|
|
564 return NGX_ERROR;
|
|
|
565 }
|
|
|
566
|
|
|
567 for (value = 0; n--; line++) {
|
|
|
568 if (*line < '0' || *line > '9') {
|
|
|
569 return NGX_ERROR;
|
|
|
570 }
|
|
|
571
|
|
|
572 value = value * 10 + (*line - '0');
|
|
|
573 }
|
|
|
574
|
|
|
575 if (value < 0) {
|
|
|
576 return NGX_ERROR;
|
|
|
577
|
|
|
578 } else {
|
|
|
579 return value;
|
|
|
580 }
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
42
|
584 ngx_int_t
|
|
|
585 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
586 {
|
|
|
587 u_char ch;
|
|
|
588 ngx_int_t value;
|
|
|
589
|
|
|
590 if (n == 0) {
|
|
|
591 return NGX_ERROR;
|
|
|
592 }
|
|
|
593
|
|
|
594 for (value = 0; n--; line++) {
|
|
|
595 ch = *line;
|
|
|
596
|
|
|
597 if (ch >= '0' && ch <= '9') {
|
|
|
598 value = value * 16 + (ch - '0');
|
|
|
599 continue;
|
|
|
600 }
|
|
|
601
|
|
|
602 if (ch >= 'A' && ch <= 'F') {
|
|
|
603 value = value * 16 + (ch - 'A' + 10);
|
|
|
604 continue;
|
|
|
605 }
|
|
|
606
|
|
|
607 if (ch >= 'a' && ch <= 'f') {
|
|
|
608 value = value * 16 + (ch - 'a' + 10);
|
|
|
609 continue;
|
|
|
610 }
|
|
|
611
|
|
|
612 return NGX_ERROR;
|
|
|
613 }
|
|
|
614
|
|
|
615 if (value < 0) {
|
|
|
616 return NGX_ERROR;
|
|
|
617
|
|
|
618 } else {
|
|
|
619 return value;
|
|
|
620 }
|
|
|
621 }
|
|
|
622
|
|
|
623
|
|
42
|
624 void
|
|
|
625 ngx_md5_text(u_char *text, u_char *md5)
|
|
0
|
626 {
|
|
|
627 int i;
|
|
|
628 static u_char hex[] = "0123456789abcdef";
|
|
|
629
|
|
|
630 for (i = 0; i < 16; i++) {
|
|
|
631 *text++ = hex[md5[i] >> 4];
|
|
|
632 *text++ = hex[md5[i] & 0xf];
|
|
|
633 }
|
|
|
634
|
|
|
635 *text = '\0';
|
|
|
636 }
|
|
|
637
|
|
|
638
|
|
42
|
639 void
|
|
|
640 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
641 {
|
|
|
642 u_char *d, *s;
|
|
|
643 size_t len;
|
|
|
644 static u_char basis64[] =
|
|
|
645 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
646
|
|
|
647 len = src->len;
|
|
|
648 s = src->data;
|
|
|
649 d = dst->data;
|
|
|
650
|
|
|
651 while (len > 2) {
|
|
|
652 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
653 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
654 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
655 *d++ = basis64[s[2] & 0x3f];
|
|
|
656
|
|
|
657 s += 3;
|
|
|
658 len -= 3;
|
|
|
659 }
|
|
|
660
|
|
|
661 if (len) {
|
|
|
662 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
663
|
|
|
664 if (len == 1) {
|
|
|
665 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
666 *d++ = '=';
|
|
|
667
|
|
|
668 } else {
|
|
|
669 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
670 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
671 }
|
|
|
672
|
|
|
673 *d++ = '=';
|
|
|
674 }
|
|
|
675
|
|
|
676 dst->len = d - dst->data;
|
|
|
677 }
|
|
|
678
|
|
|
679
|
|
42
|
680 ngx_int_t
|
|
|
681 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
682 {
|
|
|
683 size_t len;
|
|
|
684 u_char *d, *s;
|
|
|
685 static u_char basis64[] =
|
|
|
686 { 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
687 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
688 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
689 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
690 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
691 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
692 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
693 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
|
694
|
|
|
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 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
701 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
702 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
|
703
|
|
|
704 for (len = 0; len < src->len; len++) {
|
|
|
705 if (src->data[len] == '=') {
|
|
|
706 break;
|
|
|
707 }
|
|
|
708
|
|
|
709 if (basis64[src->data[len]] == 77) {
|
|
|
710 return NGX_ERROR;
|
|
|
711 }
|
|
|
712 }
|
|
|
713
|
|
|
714 if (len % 4 == 1) {
|
|
|
715 return NGX_ERROR;
|
|
|
716 }
|
|
|
717
|
|
|
718 s = src->data;
|
|
|
719 d = dst->data;
|
|
|
720
|
|
|
721 while (len > 3) {
|
|
|
722 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
723 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
724 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
725
|
|
|
726 s += 4;
|
|
|
727 len -= 4;
|
|
|
728 }
|
|
|
729
|
|
|
730 if (len > 1) {
|
|
|
731 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
732 }
|
|
|
733
|
|
|
734 if (len > 2) {
|
|
|
735 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
736 }
|
|
|
737
|
|
|
738 dst->len = d - dst->data;
|
|
|
739
|
|
|
740 return NGX_OK;
|
|
|
741 }
|
|
|
742
|
|
|
743
|
|
72
|
744 size_t
|
|
|
745 ngx_utf_length(ngx_str_t *utf)
|
|
|
746 {
|
|
|
747 u_char c;
|
|
|
748 size_t len;
|
|
|
749 ngx_uint_t i;
|
|
|
750
|
|
|
751 for (len = 0, i = 0; i < utf->len; len++, i++) {
|
|
|
752
|
|
|
753 c = utf->data[i];
|
|
|
754
|
|
|
755 if (c < 0x80) {
|
|
|
756 continue;
|
|
|
757 }
|
|
|
758
|
|
76
|
759 if (c >= 0xc0) {
|
|
|
760 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
761 i++;
|
|
|
762 }
|
|
|
763
|
|
|
764 continue;
|
|
72
|
765 }
|
|
|
766
|
|
76
|
767 /* invalid utf */
|
|
|
768
|
|
|
769 return utf->len;
|
|
72
|
770 }
|
|
|
771
|
|
|
772 return len;
|
|
|
773 }
|
|
|
774
|
|
|
775
|
|
76
|
776 u_char *
|
|
|
777 ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n)
|
|
|
778 {
|
|
|
779 u_char c;
|
|
|
780
|
|
|
781 if (n == 0) {
|
|
|
782 return dst;
|
|
|
783 }
|
|
|
784
|
|
|
785 for ( /* void */ ; --n; dst++, src++) {
|
|
|
786
|
|
|
787 c = *src;
|
|
|
788 *dst = c;
|
|
|
789
|
|
|
790 if (c < 0x80) {
|
|
|
791 if (*dst != '\0') {
|
|
|
792 continue;
|
|
|
793 }
|
|
|
794
|
|
|
795 return dst;
|
|
|
796 }
|
|
|
797
|
|
|
798 if (c >= 0xc0) {
|
|
|
799 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
800 *++dst = *++src;
|
|
|
801 }
|
|
|
802
|
|
|
803 continue;
|
|
|
804 }
|
|
|
805
|
|
|
806 /* invalid utf */
|
|
|
807 }
|
|
|
808
|
|
|
809 *dst = '\0';
|
|
|
810
|
|
|
811 return dst;
|
|
|
812 }
|
|
|
813
|
|
|
814
|
|
42
|
815 uintptr_t
|
|
|
816 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
817 {
|
|
10
|
818 ngx_uint_t i, n;
|
|
|
819 uint32_t *escape;
|
|
2
|
820 static u_char hex[] = "0123456789abcdef";
|
|
10
|
821
|
|
42
|
822 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
823
|
|
10
|
824 static uint32_t uri[] =
|
|
2
|
825 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
826
|
|
2
|
827 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
828 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
2
|
829
|
|
|
830 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
831 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
832
|
|
|
833 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
834 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
835
|
|
2
|
836 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
837 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
838 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
839 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
840
|
|
42
|
841 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
842
|
|
|
843 static uint32_t args[] =
|
|
|
844 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
845
|
|
|
846 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
847 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
848
|
|
|
849 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
850 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
851
|
|
|
852 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
853 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
854
|
|
|
855 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
856 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
857 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
858 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
859
|
|
|
860 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
|
861
|
|
10
|
862 static uint32_t html[] =
|
|
|
863 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
864
|
|
|
865 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
42
|
866 0x800000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
10
|
867
|
|
|
868 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
869 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
870
|
|
|
871 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
872 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
873
|
|
|
874 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
875 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
876 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
877 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
878
|
|
|
879
|
|
34
|
880 switch (type) {
|
|
|
881 case NGX_ESCAPE_HTML:
|
|
10
|
882 escape = html;
|
|
34
|
883 break;
|
|
|
884 case NGX_ESCAPE_ARGS:
|
|
|
885 escape = args;
|
|
|
886 break;
|
|
|
887 default:
|
|
10
|
888 escape = uri;
|
|
34
|
889 break;
|
|
10
|
890 }
|
|
|
891
|
|
2
|
892 if (dst == NULL) {
|
|
|
893
|
|
|
894 /* find the number of the characters to be escaped */
|
|
0
|
895
|
|
2
|
896 n = 0;
|
|
|
897
|
|
|
898 for (i = 0; i < size; i++) {
|
|
|
899 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
900 n++;
|
|
|
901 }
|
|
|
902 src++;
|
|
|
903 }
|
|
|
904
|
|
34
|
905 return (uintptr_t) n;
|
|
0
|
906 }
|
|
|
907
|
|
2
|
908 for (i = 0; i < size; i++) {
|
|
|
909 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
910 *dst++ = '%';
|
|
|
911 *dst++ = hex[*src >> 4];
|
|
|
912 *dst++ = hex[*src & 0xf];
|
|
|
913 src++;
|
|
0
|
914
|
|
2
|
915 } else {
|
|
|
916 *dst++ = *src++;
|
|
|
917 }
|
|
0
|
918 }
|
|
|
919
|
|
34
|
920 return (uintptr_t) dst;
|
|
0
|
921 }
|
