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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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328
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62 * %p void *
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63 * %V ngx_str_t *
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64 * %v ngx_variable_value_t *
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10
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65 * %s null-terminated string
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66 * %Z '\0'
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74
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67 * %N '\n'
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10
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68 * %c char
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69 * %% %
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4
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70 *
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10
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71 * reserved:
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72 * %t ptrdiff_t
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73 * %S null-teminated wchar string
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74 * %C wchar
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4
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75 */
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76
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10
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77
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52
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78 u_char * ngx_cdecl
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42
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79 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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80 {
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81 u_char *p;
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82 va_list args;
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83
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84 va_start(args, fmt);
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85 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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86 va_end(args);
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87
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88 return p;
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89 }
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90
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91
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52
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92 u_char * ngx_cdecl
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42
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93 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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94 {
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10
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95 u_char *p;
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96 va_list args;
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97
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98 va_start(args, fmt);
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99 p = ngx_vsnprintf(buf, max, fmt, args);
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100 va_end(args);
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101
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102 return p;
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103 }
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104
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4
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105
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42
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106 u_char *
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107 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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108 {
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320
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109 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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28
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110 /*
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111 * really we need temp[NGX_INT64_LEN] only,
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42
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112 * but icc issues the warning
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28
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113 */
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320
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114 int d;
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115 size_t len;
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116 uint32_t ui32;
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117 int64_t i64;
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118 uint64_t ui64;
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119 ngx_msec_t ms;
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120 ngx_uint_t width, sign, hexadecimal, max_width;
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328
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121 ngx_str_t *v;
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122 ngx_variable_value_t *vv;
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320
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123 static u_char hex[] = "0123456789abcdef";
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124 static u_char HEX[] = "0123456789ABCDEF";
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4
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125
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10
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126 if (max == 0) {
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127 return buf;
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128 }
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129
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130 last = buf + max;
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131
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132 while (*fmt && buf < last) {
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133
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134 /*
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135 * "buf < last" means that we could copy at least one character:
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136 * the plain character, "%%", "%c", and minus without the checking
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137 */
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138
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4
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139 if (*fmt == '%') {
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140
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10
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141 i64 = 0;
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142 ui64 = 0;
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143
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144 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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145 width = 0;
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146 sign = 1;
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147 hexadecimal = 0;
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42
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148 max_width = 0;
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4
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149
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26
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150 p = temp + NGX_INT64_LEN;
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4
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151
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152 while (*fmt >= '0' && *fmt <= '9') {
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153 width = width * 10 + *fmt++ - '0';
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154 }
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155
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156
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157 for ( ;; ) {
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158 switch (*fmt) {
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159
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160 case 'u':
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161 sign = 0;
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162 fmt++;
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163 continue;
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164
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16
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165 case 'm':
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42
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166 max_width = 1;
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16
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167 fmt++;
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168 continue;
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169
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10
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170 case 'X':
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171 hexadecimal = 2;
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172 sign = 0;
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173 fmt++;
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174 continue;
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175
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4
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176 case 'x':
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177 hexadecimal = 1;
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10
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178 sign = 0;
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4
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179 fmt++;
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180 continue;
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181
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182 default:
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183 break;
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184 }
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185
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186 break;
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187 }
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188
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189
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190 switch (*fmt) {
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191
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10
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192 case 'V':
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328
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193 v = va_arg(args, ngx_str_t *);
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4
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194
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320
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195 len = v->len;
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122
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196 len = (buf + len < last) ? len : (size_t) (last - buf);
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197
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320
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198 buf = ngx_cpymem(buf, v->data, len);
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10
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199 fmt++;
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4
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200
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10
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201 continue;
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4
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202
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328
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203 case 'v':
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204 vv = va_arg(args, ngx_variable_value_t *);
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205
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206 len = vv->len;
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207 len = (buf + len < last) ? len : (size_t) (last - buf);
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208
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209 buf = ngx_cpymem(buf, vv->data, len);
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210 fmt++;
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211
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212 continue;
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213
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4
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214 case 's':
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10
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215 p = va_arg(args, u_char *);
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4
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216
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10
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217 while (*p && buf < last) {
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4
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218 *buf++ = *p++;
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219 }
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220 fmt++;
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221
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222 continue;
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223
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10
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224 case 'O':
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225 i64 = (int64_t) va_arg(args, off_t);
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226 sign = 1;
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227 break;
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228
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229 case 'P':
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230 i64 = (int64_t) va_arg(args, ngx_pid_t);
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231 sign = 1;
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232 break;
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233
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234 case 'T':
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235 i64 = (int64_t) va_arg(args, time_t);
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236 sign = 1;
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237 break;
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238
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106
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239 case 'M':
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110
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240 ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
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241 if ((ngx_msec_int_t) ms == -1) {
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242 sign = 1;
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243 i64 = -1;
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244 } else {
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245 sign = 0;
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246 ui64 = (uint64_t) ms;
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247 }
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106
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248 break;
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249
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10
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250 case 'z':
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251 if (sign) {
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252 i64 = (int64_t) va_arg(args, ssize_t);
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253 } else {
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254 ui64 = (uint64_t) va_arg(args, size_t);
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255 }
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256 break;
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257
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258 case 'i':
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259 if (sign) {
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260 i64 = (int64_t) va_arg(args, ngx_int_t);
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261 } else {
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262 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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263 }
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42
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264
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265 if (max_width) {
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266 width = NGX_INT_T_LEN;
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267 }
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268
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10
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269 break;
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270
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271 case 'd':
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272 if (sign) {
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273 i64 = (int64_t) va_arg(args, int);
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274 } else {
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275 ui64 = (uint64_t) va_arg(args, u_int);
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276 }
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277 break;
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278
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279 case 'l':
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280 if (sign) {
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281 i64 = (int64_t) va_arg(args, long);
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282 } else {
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283 ui64 = (uint64_t) va_arg(args, u_long);
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284 }
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285 break;
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286
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287 case 'D':
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288 if (sign) {
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289 i64 = (int64_t) va_arg(args, int32_t);
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290 } else {
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291 ui64 = (uint64_t) va_arg(args, uint32_t);
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292 }
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293 break;
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294
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295 case 'L':
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296 if (sign) {
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297 i64 = va_arg(args, int64_t);
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298 } else {
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299 ui64 = va_arg(args, uint64_t);
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300 }
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301 break;
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302
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42
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303 case 'A':
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304 if (sign) {
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305 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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306 } else {
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44
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307 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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308 }
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309
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310 if (max_width) {
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311 width = NGX_ATOMIC_T_LEN;
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312 }
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313
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314 break;
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315
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10
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316 #if !(NGX_WIN32)
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317 case 'r':
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318 i64 = (int64_t) va_arg(args, rlim_t);
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319 sign = 1;
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320 break;
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321 #endif
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322
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323 case 'p':
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324 ui64 = (uintptr_t) va_arg(args, void *);
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325 hexadecimal = 2;
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326 sign = 0;
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327 zero = '0';
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162
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328 width = NGX_PTR_SIZE * 2;
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10
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329 break;
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330
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6
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331 case 'c':
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10
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332 d = va_arg(args, int);
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6
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333 *buf++ = (u_char) (d & 0xff);
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334 fmt++;
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335
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336 continue;
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337
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10
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338 case 'Z':
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339 *buf++ = '\0';
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340 fmt++;
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341
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342 continue;
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343
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74
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344 case 'N':
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345 #if (NGX_WIN32)
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346 *buf++ = CR;
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347 #endif
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348 *buf++ = LF;
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349 fmt++;
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350
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351 continue;
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352
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4
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353 case '%':
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354 *buf++ = '%';
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355 fmt++;
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356
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357 continue;
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358
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359 default:
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360 *buf++ = *fmt++;
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361
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362 continue;
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363 }
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364
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10
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365 if (sign) {
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366 if (i64 < 0) {
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367 *buf++ = '-';
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368 ui64 = (uint64_t) -i64;
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369
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|
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370 } else {
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371 ui64 = (uint64_t) i64;
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372 }
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373 }
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374
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375 if (hexadecimal == 1) {
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376 do {
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377
|
|
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378 /* the "(uint32_t)" cast disables the BCC's warning */
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379 *--p = hex[(uint32_t) (ui64 & 0xf)];
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380
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|
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381 } while (ui64 >>= 4);
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382
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|
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383 } else if (hexadecimal == 2) {
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384 do {
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385
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386 /* the "(uint32_t)" cast disables the BCC's warning */
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387 *--p = HEX[(uint32_t) (ui64 & 0xf)];
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388
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|
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389 } while (ui64 >>= 4);
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390
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|
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391 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
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392
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393 /*
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394 * To divide 64-bit number and to find the remainder
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395 * on the x86 platform gcc and icc call the libc functions
|
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396 * [u]divdi3() and [u]moddi3(), they call another function
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42
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397 * in its turn. On FreeBSD it is the qdivrem() function,
|
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10
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398 * its source code is about 170 lines of the code.
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399 * The glibc counterpart is about 150 lines of the code.
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400 *
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42
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401 * For 32-bit numbers and some divisors gcc and icc use
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402 * the inlined multiplication and shifts. For example,
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403 * unsigned "i32 / 10" is compiled to
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404 *
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|
|
405 * (i32 * 0xCCCCCCCD) >> 35
|
|
10
|
406 */
|
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407
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|
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408 ui32 = (uint32_t) ui64;
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409
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|
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410 do {
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411 *--p = (u_char) (ui32 % 10 + '0');
|
|
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412 } while (ui32 /= 10);
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413
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|
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414 } else {
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415 do {
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416 *--p = (u_char) (ui64 % 10 + '0');
|
|
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417 } while (ui64 /= 10);
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418 }
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419
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26
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420 len = (temp + NGX_INT64_LEN) - p;
|
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4
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421
|
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10
|
422 while (len++ < width && buf < last) {
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423 *buf++ = zero;
|
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4
|
424 }
|
|
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425
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|
26
|
426 len = (temp + NGX_INT64_LEN) - p;
|
|
10
|
427 if (buf + len > last) {
|
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428 len = last - buf;
|
|
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429 }
|
|
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430
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|
|
431 buf = ngx_cpymem(buf, p, len);
|
|
4
|
432
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|
|
433 fmt++;
|
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434
|
|
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435 } else {
|
|
|
436 *buf++ = *fmt++;
|
|
|
437 }
|
|
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438 }
|
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439
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|
|
440 return buf;
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|
|
441 }
|
|
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442
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443
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|
286
|
444 /*
|
|
340
|
445 * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
|
|
286
|
446 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
|
|
|
447 * to avoid libc locale overhead. Besides, we use the ngx_uint_t's
|
|
|
448 * instead of the u_char's, because they are slightly faster.
|
|
|
449 */
|
|
|
450
|
|
|
451 ngx_int_t
|
|
|
452 ngx_strcasecmp(u_char *s1, u_char *s2)
|
|
|
453 {
|
|
|
454 ngx_uint_t c1, c2;
|
|
|
455
|
|
|
456 for ( ;; ) {
|
|
|
457 c1 = (ngx_uint_t) *s1++;
|
|
|
458 c2 = (ngx_uint_t) *s2++;
|
|
|
459
|
|
|
460 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
461 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
462
|
|
|
463 if (c1 == c2) {
|
|
|
464
|
|
|
465 if (c1) {
|
|
|
466 continue;
|
|
|
467 }
|
|
|
468
|
|
|
469 return 0;
|
|
|
470 }
|
|
|
471
|
|
|
472 return c1 - c2;
|
|
|
473 }
|
|
|
474 }
|
|
|
475
|
|
|
476
|
|
|
477 ngx_int_t
|
|
|
478 ngx_strncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
|
479 {
|
|
|
480 ngx_uint_t c1, c2;
|
|
|
481
|
|
|
482 while (n) {
|
|
|
483 c1 = (ngx_uint_t) *s1++;
|
|
|
484 c2 = (ngx_uint_t) *s2++;
|
|
|
485
|
|
|
486 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
487 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
488
|
|
|
489 if (c1 == c2) {
|
|
|
490
|
|
|
491 if (c1) {
|
|
|
492 n--;
|
|
|
493 continue;
|
|
|
494 }
|
|
|
495
|
|
|
496 return 0;
|
|
|
497 }
|
|
|
498
|
|
|
499 return c1 - c2;
|
|
|
500 }
|
|
|
501
|
|
|
502 return 0;
|
|
|
503 }
|
|
|
504
|
|
|
505
|
|
340
|
506 u_char *
|
|
|
507 ngx_strnstr(u_char *s1, char *s2, size_t len)
|
|
|
508 {
|
|
|
509 u_char c1, c2;
|
|
|
510 size_t n;
|
|
|
511
|
|
|
512 c2 = *(u_char *) s2++;
|
|
|
513
|
|
|
514 n = ngx_strlen(s2);
|
|
|
515
|
|
|
516 do {
|
|
|
517 do {
|
|
|
518 if (len-- == 0) {
|
|
|
519 return NULL;
|
|
|
520 }
|
|
|
521
|
|
|
522 c1 = *s1++;
|
|
|
523
|
|
|
524 if (c1 == 0) {
|
|
|
525 return NULL;
|
|
|
526 }
|
|
|
527
|
|
|
528 } while (c1 != c2);
|
|
|
529
|
|
|
530 if (n > len) {
|
|
|
531 return NULL;
|
|
|
532 }
|
|
|
533
|
|
|
534 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
535
|
|
|
536 return --s1;
|
|
|
537 }
|
|
|
538
|
|
|
539
|
|
|
540 /*
|
|
|
541 * ngx_strstrn() and ngx_strcasestrn() are intended to search for static
|
|
|
542 * substring with known length in null-terminated string. The argument n
|
|
|
543 * must be length of the second substring - 1.
|
|
|
544 */
|
|
|
545
|
|
|
546 u_char *
|
|
|
547 ngx_strstrn(u_char *s1, char *s2, size_t n)
|
|
|
548 {
|
|
|
549 u_char c1, c2;
|
|
|
550
|
|
|
551 c2 = *(u_char *) s2++;
|
|
|
552
|
|
|
553 do {
|
|
|
554 do {
|
|
|
555 c1 = *s1++;
|
|
|
556
|
|
|
557 if (c1 == 0) {
|
|
|
558 return NULL;
|
|
|
559 }
|
|
|
560
|
|
|
561 } while (c1 != c2);
|
|
|
562
|
|
|
563 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
564
|
|
|
565 return --s1;
|
|
|
566 }
|
|
|
567
|
|
|
568
|
|
|
569 u_char *
|
|
|
570 ngx_strcasestrn(u_char *s1, char *s2, size_t n)
|
|
|
571 {
|
|
|
572 ngx_uint_t c1, c2;
|
|
|
573
|
|
|
574 c2 = (ngx_uint_t) *s2++;
|
|
|
575 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
576
|
|
|
577 do {
|
|
|
578 do {
|
|
|
579 c1 = (ngx_uint_t) *s1++;
|
|
|
580
|
|
|
581 if (c1 == 0) {
|
|
|
582 return NULL;
|
|
|
583 }
|
|
|
584
|
|
|
585 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
586
|
|
|
587 } while (c1 != c2);
|
|
|
588
|
|
|
589 } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
|
|
|
590
|
|
|
591 return --s1;
|
|
|
592 }
|
|
|
593
|
|
|
594
|
|
42
|
595 ngx_int_t
|
|
|
596 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
|
597 {
|
|
|
598 if (n == 0) {
|
|
|
599 return 0;
|
|
|
600 }
|
|
|
601
|
|
|
602 n--;
|
|
|
603
|
|
|
604 for ( ;; ) {
|
|
|
605 if (s1[n] != s2[n]) {
|
|
|
606 return s1[n] - s2[n];
|
|
|
607 }
|
|
|
608
|
|
|
609 if (n == 0) {
|
|
|
610 return 0;
|
|
|
611 }
|
|
|
612
|
|
|
613 n--;
|
|
|
614 }
|
|
|
615 }
|
|
|
616
|
|
|
617
|
|
42
|
618 ngx_int_t
|
|
|
619 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
620 {
|
|
|
621 u_char c1, c2;
|
|
|
622
|
|
|
623 if (n == 0) {
|
|
|
624 return 0;
|
|
|
625 }
|
|
|
626
|
|
|
627 n--;
|
|
|
628
|
|
|
629 for ( ;; ) {
|
|
|
630 c1 = s1[n];
|
|
|
631 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
632 c1 -= 'a' - 'A';
|
|
|
633 }
|
|
|
634
|
|
|
635 c2 = s2[n];
|
|
|
636 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
637 c2 -= 'a' - 'A';
|
|
|
638 }
|
|
|
639
|
|
|
640 if (c1 != c2) {
|
|
|
641 return c1 - c2;
|
|
|
642 }
|
|
|
643
|
|
|
644 if (n == 0) {
|
|
|
645 return 0;
|
|
|
646 }
|
|
|
647
|
|
|
648 n--;
|
|
|
649 }
|
|
|
650 }
|
|
|
651
|
|
|
652
|
|
42
|
653 ngx_int_t
|
|
274
|
654 ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
|
|
|
655 {
|
|
|
656 size_t n;
|
|
|
657 ngx_int_t m, z;
|
|
|
658
|
|
|
659 if (n1 <= n2) {
|
|
|
660 n = n1;
|
|
|
661 z = -1;
|
|
|
662
|
|
|
663 } else {
|
|
|
664 n = n2;
|
|
|
665 z = 1;
|
|
|
666 }
|
|
|
667
|
|
|
668 m = ngx_memcmp(s1, s2, n);
|
|
|
669
|
|
|
670 if (m || n1 == n2) {
|
|
|
671 return m;
|
|
|
672 }
|
|
|
673
|
|
|
674 return z;
|
|
|
675 }
|
|
|
676
|
|
|
677
|
|
|
678 ngx_int_t
|
|
42
|
679 ngx_atoi(u_char *line, size_t n)
|
|
0
|
680 {
|
|
|
681 ngx_int_t value;
|
|
|
682
|
|
|
683 if (n == 0) {
|
|
|
684 return NGX_ERROR;
|
|
|
685 }
|
|
|
686
|
|
|
687 for (value = 0; n--; line++) {
|
|
|
688 if (*line < '0' || *line > '9') {
|
|
|
689 return NGX_ERROR;
|
|
|
690 }
|
|
|
691
|
|
|
692 value = value * 10 + (*line - '0');
|
|
|
693 }
|
|
|
694
|
|
|
695 if (value < 0) {
|
|
|
696 return NGX_ERROR;
|
|
|
697
|
|
|
698 } else {
|
|
|
699 return value;
|
|
|
700 }
|
|
|
701 }
|
|
|
702
|
|
|
703
|
|
50
|
704 ssize_t
|
|
|
705 ngx_atosz(u_char *line, size_t n)
|
|
|
706 {
|
|
|
707 ssize_t value;
|
|
|
708
|
|
|
709 if (n == 0) {
|
|
|
710 return NGX_ERROR;
|
|
|
711 }
|
|
|
712
|
|
|
713 for (value = 0; n--; line++) {
|
|
|
714 if (*line < '0' || *line > '9') {
|
|
|
715 return NGX_ERROR;
|
|
|
716 }
|
|
|
717
|
|
|
718 value = value * 10 + (*line - '0');
|
|
|
719 }
|
|
|
720
|
|
|
721 if (value < 0) {
|
|
|
722 return NGX_ERROR;
|
|
|
723
|
|
|
724 } else {
|
|
|
725 return value;
|
|
|
726 }
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
|
730 off_t
|
|
|
731 ngx_atoof(u_char *line, size_t n)
|
|
|
732 {
|
|
|
733 off_t value;
|
|
|
734
|
|
|
735 if (n == 0) {
|
|
|
736 return NGX_ERROR;
|
|
|
737 }
|
|
|
738
|
|
|
739 for (value = 0; n--; line++) {
|
|
|
740 if (*line < '0' || *line > '9') {
|
|
|
741 return NGX_ERROR;
|
|
|
742 }
|
|
|
743
|
|
|
744 value = value * 10 + (*line - '0');
|
|
|
745 }
|
|
|
746
|
|
|
747 if (value < 0) {
|
|
|
748 return NGX_ERROR;
|
|
|
749
|
|
|
750 } else {
|
|
|
751 return value;
|
|
|
752 }
|
|
|
753 }
|
|
|
754
|
|
|
755
|
|
|
756 time_t
|
|
|
757 ngx_atotm(u_char *line, size_t n)
|
|
|
758 {
|
|
|
759 time_t value;
|
|
|
760
|
|
|
761 if (n == 0) {
|
|
|
762 return NGX_ERROR;
|
|
|
763 }
|
|
|
764
|
|
|
765 for (value = 0; n--; line++) {
|
|
|
766 if (*line < '0' || *line > '9') {
|
|
|
767 return NGX_ERROR;
|
|
|
768 }
|
|
|
769
|
|
|
770 value = value * 10 + (*line - '0');
|
|
|
771 }
|
|
|
772
|
|
|
773 if (value < 0) {
|
|
|
774 return NGX_ERROR;
|
|
|
775
|
|
|
776 } else {
|
|
|
777 return value;
|
|
|
778 }
|
|
|
779 }
|
|
|
780
|
|
|
781
|
|
42
|
782 ngx_int_t
|
|
|
783 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
784 {
|
|
250
|
785 u_char c, ch;
|
|
0
|
786 ngx_int_t value;
|
|
|
787
|
|
|
788 if (n == 0) {
|
|
|
789 return NGX_ERROR;
|
|
|
790 }
|
|
|
791
|
|
|
792 for (value = 0; n--; line++) {
|
|
|
793 ch = *line;
|
|
|
794
|
|
|
795 if (ch >= '0' && ch <= '9') {
|
|
|
796 value = value * 16 + (ch - '0');
|
|
|
797 continue;
|
|
|
798 }
|
|
|
799
|
|
250
|
800 c = (u_char) (ch | 0x20);
|
|
0
|
801
|
|
250
|
802 if (c >= 'a' && c <= 'f') {
|
|
|
803 value = value * 16 + (c - 'a' + 10);
|
|
0
|
804 continue;
|
|
|
805 }
|
|
|
806
|
|
|
807 return NGX_ERROR;
|
|
|
808 }
|
|
|
809
|
|
|
810 if (value < 0) {
|
|
|
811 return NGX_ERROR;
|
|
|
812
|
|
|
813 } else {
|
|
|
814 return value;
|
|
|
815 }
|
|
|
816 }
|
|
|
817
|
|
|
818
|
|
356
|
819 u_char *
|
|
|
820 ngx_hex_dump(u_char *dst, u_char *src, size_t len)
|
|
0
|
821 {
|
|
|
822 static u_char hex[] = "0123456789abcdef";
|
|
|
823
|
|
356
|
824 while (len--) {
|
|
|
825 *dst++ = hex[*src >> 4];
|
|
|
826 *dst++ = hex[*src++ & 0xf];
|
|
0
|
827 }
|
|
|
828
|
|
356
|
829 return dst;
|
|
0
|
830 }
|
|
|
831
|
|
|
832
|
|
42
|
833 void
|
|
|
834 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
835 {
|
|
|
836 u_char *d, *s;
|
|
|
837 size_t len;
|
|
|
838 static u_char basis64[] =
|
|
|
839 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
840
|
|
|
841 len = src->len;
|
|
|
842 s = src->data;
|
|
|
843 d = dst->data;
|
|
|
844
|
|
|
845 while (len > 2) {
|
|
|
846 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
847 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
848 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
849 *d++ = basis64[s[2] & 0x3f];
|
|
|
850
|
|
|
851 s += 3;
|
|
|
852 len -= 3;
|
|
|
853 }
|
|
|
854
|
|
|
855 if (len) {
|
|
|
856 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
857
|
|
|
858 if (len == 1) {
|
|
|
859 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
860 *d++ = '=';
|
|
|
861
|
|
|
862 } else {
|
|
|
863 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
864 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
865 }
|
|
|
866
|
|
|
867 *d++ = '=';
|
|
|
868 }
|
|
|
869
|
|
|
870 dst->len = d - dst->data;
|
|
|
871 }
|
|
|
872
|
|
|
873
|
|
42
|
874 ngx_int_t
|
|
|
875 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
876 {
|
|
|
877 size_t len;
|
|
|
878 u_char *d, *s;
|
|
254
|
879 static u_char basis64[] = {
|
|
|
880 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
881 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
882 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
883 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
884 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
885 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
886 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
887 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
0
|
888
|
|
254
|
889 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
890 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
891 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
892 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
893 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
894 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
895 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
896 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
|
|
|
897 };
|
|
0
|
898
|
|
|
899 for (len = 0; len < src->len; len++) {
|
|
|
900 if (src->data[len] == '=') {
|
|
|
901 break;
|
|
|
902 }
|
|
|
903
|
|
|
904 if (basis64[src->data[len]] == 77) {
|
|
|
905 return NGX_ERROR;
|
|
|
906 }
|
|
|
907 }
|
|
|
908
|
|
|
909 if (len % 4 == 1) {
|
|
|
910 return NGX_ERROR;
|
|
|
911 }
|
|
|
912
|
|
|
913 s = src->data;
|
|
|
914 d = dst->data;
|
|
|
915
|
|
|
916 while (len > 3) {
|
|
|
917 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
918 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
919 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
920
|
|
|
921 s += 4;
|
|
|
922 len -= 4;
|
|
|
923 }
|
|
|
924
|
|
|
925 if (len > 1) {
|
|
|
926 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
927 }
|
|
|
928
|
|
|
929 if (len > 2) {
|
|
|
930 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
931 }
|
|
|
932
|
|
|
933 dst->len = d - dst->data;
|
|
|
934
|
|
|
935 return NGX_OK;
|
|
|
936 }
|
|
|
937
|
|
|
938
|
|
206
|
939 /*
|
|
|
940 * ngx_utf_decode() decodes two and more bytes UTF sequences only
|
|
|
941 * the return values:
|
|
|
942 * 0x80 - 0x10ffff valid character
|
|
|
943 * 0x10ffff - 0xfffffffd invalid sequence
|
|
|
944 * 0xfffffffe incomplete sequence
|
|
|
945 * 0xffffffff error
|
|
|
946 */
|
|
|
947
|
|
|
948 uint32_t
|
|
|
949 ngx_utf_decode(u_char **p, size_t n)
|
|
|
950 {
|
|
|
951 size_t len;
|
|
|
952 uint32_t u, i, valid;
|
|
|
953
|
|
|
954 u = **p;
|
|
|
955
|
|
|
956 if (u > 0xf0) {
|
|
|
957
|
|
|
958 u &= 0x07;
|
|
|
959 valid = 0xffff;
|
|
|
960 len = 3;
|
|
|
961
|
|
|
962 } else if (u > 0xe0) {
|
|
|
963
|
|
|
964 u &= 0x0f;
|
|
|
965 valid = 0x7ff;
|
|
|
966 len = 2;
|
|
|
967
|
|
|
968 } else if (u > 0xc0) {
|
|
|
969
|
|
|
970 u &= 0x1f;
|
|
|
971 valid = 0x7f;
|
|
|
972 len = 1;
|
|
|
973
|
|
|
974 } else {
|
|
|
975 (*p)++;
|
|
|
976 return 0xffffffff;
|
|
|
977 }
|
|
|
978
|
|
|
979 if (n - 1 < len) {
|
|
|
980 return 0xfffffffe;
|
|
|
981 }
|
|
|
982
|
|
|
983 (*p)++;
|
|
|
984
|
|
|
985 while (len) {
|
|
|
986 i = *(*p)++;
|
|
|
987
|
|
|
988 if (i < 0x80) {
|
|
|
989 return 0xffffffff;
|
|
|
990 }
|
|
|
991
|
|
|
992 u = (u << 6) | (i & 0x3f);
|
|
|
993
|
|
|
994 len--;
|
|
|
995 }
|
|
|
996
|
|
|
997 if (u > valid) {
|
|
|
998 return u;
|
|
|
999 }
|
|
|
1000
|
|
|
1001 return 0xffffffff;
|
|
|
1002 }
|
|
|
1003
|
|
|
1004
|
|
72
|
1005 size_t
|
|
206
|
1006 ngx_utf_length(u_char *p, size_t n)
|
|
72
|
1007 {
|
|
|
1008 u_char c;
|
|
|
1009 size_t len;
|
|
|
1010 ngx_uint_t i;
|
|
|
1011
|
|
206
|
1012 for (len = 0, i = 0; i < n; len++, i++) {
|
|
72
|
1013
|
|
206
|
1014 c = p[i];
|
|
72
|
1015
|
|
|
1016 if (c < 0x80) {
|
|
|
1017 continue;
|
|
|
1018 }
|
|
|
1019
|
|
76
|
1020 if (c >= 0xc0) {
|
|
|
1021 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
1022 i++;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 continue;
|
|
72
|
1026 }
|
|
|
1027
|
|
76
|
1028 /* invalid utf */
|
|
|
1029
|
|
206
|
1030 return n;
|
|
72
|
1031 }
|
|
|
1032
|
|
|
1033 return len;
|
|
|
1034 }
|
|
|
1035
|
|
|
1036
|
|
76
|
1037 u_char *
|
|
|
1038 ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n)
|
|
|
1039 {
|
|
|
1040 u_char c;
|
|
|
1041
|
|
|
1042 if (n == 0) {
|
|
|
1043 return dst;
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 for ( /* void */ ; --n; dst++, src++) {
|
|
|
1047
|
|
|
1048 c = *src;
|
|
|
1049 *dst = c;
|
|
|
1050
|
|
|
1051 if (c < 0x80) {
|
|
|
1052 if (*dst != '\0') {
|
|
|
1053 continue;
|
|
|
1054 }
|
|
|
1055
|
|
|
1056 return dst;
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 if (c >= 0xc0) {
|
|
|
1060 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
1061 *++dst = *++src;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 continue;
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 /* invalid utf */
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 *dst = '\0';
|
|
|
1071
|
|
|
1072 return dst;
|
|
|
1073 }
|
|
|
1074
|
|
|
1075
|
|
42
|
1076 uintptr_t
|
|
|
1077 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
1078 {
|
|
254
|
1079 ngx_uint_t i, n;
|
|
|
1080 uint32_t *escape;
|
|
|
1081 static u_char hex[] = "0123456789abcdef";
|
|
10
|
1082
|
|
254
|
1083 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
1084
|
|
254
|
1085 static uint32_t uri[] = {
|
|
|
1086 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
1087
|
|
254
|
1088 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1089 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
|
1090
|
|
|
1091 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1092 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
2
|
1093
|
|
254
|
1094 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1095 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
1096
|
|
254
|
1097 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1098 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1099 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1100 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1101 };
|
|
2
|
1102
|
|
254
|
1103 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
1104
|
|
254
|
1105 static uint32_t args[] = {
|
|
|
1106 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1107
|
|
|
1108 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1109 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
1110
|
|
254
|
1111 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1112 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1113
|
|
254
|
1114 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1115 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1116
|
|
254
|
1117 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1118 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1119 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1120 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1121 };
|
|
34
|
1122
|
|
328
|
1123 /* " ", "#", """, "%", "'", %00-%1F, %7F-%FF */
|
|
34
|
1124
|
|
254
|
1125 static uint32_t html[] = {
|
|
|
1126 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
10
|
1127
|
|
254
|
1128 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
320
|
1129 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
254
|
1130
|
|
|
1131 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1132 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1133
|
|
254
|
1134 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1135 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1136
|
|
254
|
1137 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1138 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1139 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1140 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1141 };
|
|
10
|
1142
|
|
328
|
1143 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
10
|
1144
|
|
320
|
1145 static uint32_t refresh[] = {
|
|
|
1146 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1147
|
|
|
1148 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
346
|
1149 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */
|
|
320
|
1150
|
|
|
1151 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1152 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1153
|
|
|
1154 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1155 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1156
|
|
|
1157 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1158 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1159 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1160 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1161 };
|
|
|
1162
|
|
328
|
1163 /* " ", "%", %00-%1F */
|
|
322
|
1164
|
|
|
1165 static uint32_t memcached[] = {
|
|
|
1166 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1167
|
|
|
1168 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
328
|
1169 0x00000021, /* 0000 0000 0000 0000 0000 0000 0010 0001 */
|
|
322
|
1170
|
|
|
1171 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1172 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1173
|
|
|
1174 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1175 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1176
|
|
|
1177 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1178 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1179 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1180 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1181 };
|
|
|
1182
|
|
328
|
1183 /* mail_auth is the same as memcached */
|
|
|
1184
|
|
|
1185 static uint32_t *map[] =
|
|
|
1186 { uri, args, html, refresh, memcached, memcached };
|
|
320
|
1187
|
|
|
1188
|
|
|
1189 escape = map[type];
|
|
10
|
1190
|
|
2
|
1191 if (dst == NULL) {
|
|
|
1192
|
|
|
1193 /* find the number of the characters to be escaped */
|
|
0
|
1194
|
|
2
|
1195 n = 0;
|
|
|
1196
|
|
|
1197 for (i = 0; i < size; i++) {
|
|
|
1198 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1199 n++;
|
|
|
1200 }
|
|
|
1201 src++;
|
|
|
1202 }
|
|
|
1203
|
|
34
|
1204 return (uintptr_t) n;
|
|
0
|
1205 }
|
|
|
1206
|
|
2
|
1207 for (i = 0; i < size; i++) {
|
|
|
1208 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1209 *dst++ = '%';
|
|
|
1210 *dst++ = hex[*src >> 4];
|
|
|
1211 *dst++ = hex[*src & 0xf];
|
|
|
1212 src++;
|
|
0
|
1213
|
|
2
|
1214 } else {
|
|
|
1215 *dst++ = *src++;
|
|
|
1216 }
|
|
0
|
1217 }
|
|
|
1218
|
|
34
|
1219 return (uintptr_t) dst;
|
|
0
|
1220 }
|
|
126
|
1221
|
|
|
1222
|
|
|
1223 void
|
|
150
|
1224 ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type)
|
|
126
|
1225 {
|
|
|
1226 u_char *d, *s, ch, c, decoded;
|
|
|
1227 enum {
|
|
|
1228 sw_usual = 0,
|
|
|
1229 sw_quoted,
|
|
|
1230 sw_quoted_second
|
|
|
1231 } state;
|
|
|
1232
|
|
|
1233 d = *dst;
|
|
|
1234 s = *src;
|
|
|
1235
|
|
|
1236 state = 0;
|
|
|
1237 decoded = 0;
|
|
|
1238
|
|
|
1239 while (size--) {
|
|
|
1240
|
|
|
1241 ch = *s++;
|
|
|
1242
|
|
|
1243 switch (state) {
|
|
|
1244 case sw_usual:
|
|
342
|
1245 if (ch == '?'
|
|
|
1246 && (type & (NGX_UNESCAPE_URI|NGX_UNESCAPE_REDIRECT)))
|
|
|
1247 {
|
|
126
|
1248 *d++ = ch;
|
|
|
1249 goto done;
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 if (ch == '%') {
|
|
|
1253 state = sw_quoted;
|
|
|
1254 break;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 *d++ = ch;
|
|
|
1258 break;
|
|
|
1259
|
|
|
1260 case sw_quoted:
|
|
|
1261
|
|
|
1262 if (ch >= '0' && ch <= '9') {
|
|
|
1263 decoded = (u_char) (ch - '0');
|
|
|
1264 state = sw_quoted_second;
|
|
|
1265 break;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 c = (u_char) (ch | 0x20);
|
|
|
1269 if (c >= 'a' && c <= 'f') {
|
|
|
1270 decoded = (u_char) (c - 'a' + 10);
|
|
|
1271 state = sw_quoted_second;
|
|
|
1272 break;
|
|
|
1273 }
|
|
|
1274
|
|
138
|
1275 /* the invalid quoted character */
|
|
126
|
1276
|
|
138
|
1277 state = sw_usual;
|
|
|
1278
|
|
|
1279 *d++ = ch;
|
|
126
|
1280
|
|
|
1281 break;
|
|
|
1282
|
|
|
1283 case sw_quoted_second:
|
|
|
1284
|
|
138
|
1285 state = sw_usual;
|
|
|
1286
|
|
126
|
1287 if (ch >= '0' && ch <= '9') {
|
|
|
1288 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
1289
|
|
342
|
1290 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1291 if (ch > '%' && ch < 0x7f) {
|
|
|
1292 *d++ = ch;
|
|
|
1293 break;
|
|
|
1294 }
|
|
|
1295
|
|
|
1296 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
|
1297
|
|
126
|
1298 break;
|
|
|
1299 }
|
|
|
1300
|
|
150
|
1301 *d++ = ch;
|
|
126
|
1302
|
|
|
1303 break;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 c = (u_char) (ch | 0x20);
|
|
|
1307 if (c >= 'a' && c <= 'f') {
|
|
|
1308 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
1309
|
|
342
|
1310 if (type & NGX_UNESCAPE_URI) {
|
|
|
1311 if (ch == '?') {
|
|
|
1312 *d++ = ch;
|
|
|
1313 goto done;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 *d++ = ch;
|
|
|
1317 break;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1321 if (ch == '?') {
|
|
|
1322 *d++ = ch;
|
|
|
1323 goto done;
|
|
|
1324 }
|
|
126
|
1325
|
|
150
|
1326 if (ch > '%' && ch < 0x7f) {
|
|
|
1327 *d++ = ch;
|
|
|
1328 break;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
126
|
1332 break;
|
|
|
1333 }
|
|
|
1334
|
|
150
|
1335 *d++ = ch;
|
|
126
|
1336
|
|
|
1337 break;
|
|
|
1338 }
|
|
|
1339
|
|
138
|
1340 /* the invalid quoted character */
|
|
126
|
1341
|
|
|
1342 break;
|
|
|
1343 }
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 done:
|
|
|
1347
|
|
|
1348 *dst = d;
|
|
|
1349 *src = s;
|
|
|
1350 }
|
|
132
|
1351
|
|
|
1352
|
|
340
|
1353 uintptr_t
|
|
|
1354 ngx_escape_html(u_char *dst, u_char *src, size_t size)
|
|
|
1355 {
|
|
|
1356 u_char ch;
|
|
|
1357 ngx_uint_t i, len;
|
|
|
1358
|
|
|
1359 if (dst == NULL) {
|
|
|
1360
|
|
|
1361 len = 0;
|
|
|
1362
|
|
|
1363 for (i = 0; i < size; i++) {
|
|
|
1364 switch (*src++) {
|
|
|
1365
|
|
|
1366 case '<':
|
|
|
1367 len += sizeof("<") - 2;
|
|
|
1368 break;
|
|
|
1369
|
|
|
1370 case '>':
|
|
|
1371 len += sizeof(">") - 2;
|
|
|
1372 break;
|
|
|
1373
|
|
|
1374 case '&':
|
|
|
1375 len += sizeof("&") - 2;
|
|
|
1376 break;
|
|
|
1377
|
|
|
1378 default:
|
|
|
1379 break;
|
|
|
1380 }
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 return (uintptr_t) len;
|
|
|
1384 }
|
|
|
1385
|
|
|
1386 for (i = 0; i < size; i++) {
|
|
|
1387 ch = *src++;
|
|
|
1388
|
|
|
1389 switch (ch) {
|
|
|
1390
|
|
|
1391 case '<':
|
|
|
1392 *dst++ = '&'; *dst++ = 'l'; *dst++ = 't'; *dst++ = ';';
|
|
|
1393 break;
|
|
|
1394
|
|
|
1395 case '>':
|
|
|
1396 *dst++ = '&'; *dst++ = 'g'; *dst++ = 't'; *dst++ = ';';
|
|
|
1397 break;
|
|
|
1398
|
|
|
1399 case '&':
|
|
|
1400 *dst++ = '&'; *dst++ = 'a'; *dst++ = 'm'; *dst++ = 'p';
|
|
|
1401 *dst++ = ';';
|
|
|
1402 break;
|
|
|
1403
|
|
|
1404 default:
|
|
|
1405 *dst++ = ch;
|
|
|
1406 break;
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 return (uintptr_t) dst;
|
|
|
1411 }
|
|
|
1412
|
|
|
1413
|
|
302
|
1414 /* ngx_sort() is implemented as insertion sort because we need stable sort */
|
|
|
1415
|
|
|
1416 void
|
|
|
1417 ngx_sort(void *base, size_t n, size_t size,
|
|
|
1418 int (*cmp)(const void *, const void *))
|
|
|
1419 {
|
|
|
1420 u_char *p1, *p2;
|
|
|
1421 u_char buf[256];
|
|
|
1422
|
|
|
1423 for (p1 = (u_char *) base + size;
|
|
|
1424 p1 < (u_char *) base + n * size;
|
|
|
1425 p1 += size)
|
|
|
1426 {
|
|
|
1427 ngx_memcpy(buf, p1, size);
|
|
|
1428
|
|
|
1429 for (p2 = p1;
|
|
|
1430 p2 > (u_char *) base && cmp(p2 - size, buf) > 0;
|
|
|
1431 p2 -= size)
|
|
|
1432 {
|
|
|
1433 ngx_memcpy(p2, p2 - size, size);
|
|
|
1434 }
|
|
|
1435
|
|
|
1436 ngx_memcpy(p2, buf, size);
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439
|
|
|
1440
|
|
132
|
1441 #if (NGX_MEMCPY_LIMIT)
|
|
|
1442
|
|
|
1443 void *
|
|
|
1444 ngx_memcpy(void *dst, void *src, size_t n)
|
|
|
1445 {
|
|
|
1446 if (n > NGX_MEMCPY_LIMIT) {
|
|
|
1447 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n);
|
|
|
1448 ngx_debug_point();
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 return memcpy(dst, src, n);
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 #endif
|
