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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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358
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66 * %*s length and string
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10
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67 * %Z '\0'
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74
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68 * %N '\n'
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10
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69 * %c char
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70 * %% %
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4
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71 *
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10
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72 * reserved:
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73 * %t ptrdiff_t
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74 * %S null-teminated wchar string
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75 * %C wchar
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4
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76 */
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77
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10
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78
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52
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79 u_char * ngx_cdecl
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42
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80 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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81 {
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82 u_char *p;
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83 va_list args;
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84
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85 va_start(args, fmt);
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86 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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87 va_end(args);
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88
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89 return p;
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90 }
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91
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92
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52
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93 u_char * ngx_cdecl
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42
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94 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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95 {
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10
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96 u_char *p;
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97 va_list args;
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98
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99 va_start(args, fmt);
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100 p = ngx_vsnprintf(buf, max, fmt, args);
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101 va_end(args);
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102
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103 return p;
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104 }
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105
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4
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106
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42
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107 u_char *
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108 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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109 {
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320
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110 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
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28
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111 /*
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112 * really we need temp[NGX_INT64_LEN] only,
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42
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113 * but icc issues the warning
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28
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114 */
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320
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115 int d;
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358
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116 size_t len, slen;
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320
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117 uint32_t ui32;
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118 int64_t i64;
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119 uint64_t ui64;
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120 ngx_msec_t ms;
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121 ngx_uint_t width, sign, hexadecimal, max_width;
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328
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122 ngx_str_t *v;
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123 ngx_variable_value_t *vv;
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320
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124 static u_char hex[] = "0123456789abcdef";
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125 static u_char HEX[] = "0123456789ABCDEF";
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4
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126
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10
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127 if (max == 0) {
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128 return buf;
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129 }
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130
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131 last = buf + max;
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132
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133 while (*fmt && buf < last) {
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134
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135 /*
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136 * "buf < last" means that we could copy at least one character:
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137 * the plain character, "%%", "%c", and minus without the checking
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138 */
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139
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4
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140 if (*fmt == '%') {
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141
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10
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142 i64 = 0;
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143 ui64 = 0;
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144
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145 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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146 width = 0;
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147 sign = 1;
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148 hexadecimal = 0;
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42
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149 max_width = 0;
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364
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150 slen = (size_t) -1;
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4
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151
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26
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152 p = temp + NGX_INT64_LEN;
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4
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153
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154 while (*fmt >= '0' && *fmt <= '9') {
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155 width = width * 10 + *fmt++ - '0';
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156 }
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157
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158
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159 for ( ;; ) {
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160 switch (*fmt) {
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161
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162 case 'u':
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163 sign = 0;
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164 fmt++;
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165 continue;
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166
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16
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167 case 'm':
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42
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168 max_width = 1;
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16
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169 fmt++;
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170 continue;
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171
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10
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172 case 'X':
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173 hexadecimal = 2;
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174 sign = 0;
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175 fmt++;
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176 continue;
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177
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4
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178 case 'x':
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179 hexadecimal = 1;
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10
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180 sign = 0;
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4
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181 fmt++;
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182 continue;
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183
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358
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184 case '*':
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364
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185 slen = va_arg(args, size_t);
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358
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186 fmt++;
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187 continue;
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188
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4
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189 default:
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190 break;
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191 }
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192
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193 break;
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194 }
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195
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196
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197 switch (*fmt) {
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198
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10
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199 case 'V':
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328
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200 v = va_arg(args, ngx_str_t *);
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4
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201
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320
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202 len = v->len;
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122
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203 len = (buf + len < last) ? len : (size_t) (last - buf);
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204
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320
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205 buf = ngx_cpymem(buf, v->data, len);
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10
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206 fmt++;
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4
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207
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10
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208 continue;
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4
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209
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328
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210 case 'v':
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211 vv = va_arg(args, ngx_variable_value_t *);
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212
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213 len = vv->len;
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214 len = (buf + len < last) ? len : (size_t) (last - buf);
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215
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216 buf = ngx_cpymem(buf, vv->data, len);
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217 fmt++;
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218
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219 continue;
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220
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4
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221 case 's':
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10
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222 p = va_arg(args, u_char *);
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4
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223
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364
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224 if (slen == (size_t) -1) {
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358
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225 while (*p && buf < last) {
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226 *buf++ = *p++;
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227 }
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228
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229 } else {
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364
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230 len = (buf + slen < last) ? slen : (size_t) (last - buf);
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231
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232 buf = ngx_cpymem(buf, p, len);
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4
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233 }
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358
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234
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4
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235 fmt++;
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236
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237 continue;
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238
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10
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239 case 'O':
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240 i64 = (int64_t) va_arg(args, off_t);
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241 sign = 1;
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242 break;
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243
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244 case 'P':
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245 i64 = (int64_t) va_arg(args, ngx_pid_t);
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246 sign = 1;
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247 break;
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248
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249 case 'T':
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250 i64 = (int64_t) va_arg(args, time_t);
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251 sign = 1;
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252 break;
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253
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106
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254 case 'M':
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110
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255 ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
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256 if ((ngx_msec_int_t) ms == -1) {
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257 sign = 1;
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258 i64 = -1;
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259 } else {
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260 sign = 0;
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261 ui64 = (uint64_t) ms;
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262 }
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106
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263 break;
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264
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10
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265 case 'z':
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266 if (sign) {
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267 i64 = (int64_t) va_arg(args, ssize_t);
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268 } else {
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269 ui64 = (uint64_t) va_arg(args, size_t);
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270 }
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271 break;
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272
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273 case 'i':
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274 if (sign) {
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275 i64 = (int64_t) va_arg(args, ngx_int_t);
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276 } else {
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277 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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278 }
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42
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279
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280 if (max_width) {
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281 width = NGX_INT_T_LEN;
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282 }
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283
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10
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284 break;
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285
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286 case 'd':
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287 if (sign) {
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288 i64 = (int64_t) va_arg(args, int);
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289 } else {
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290 ui64 = (uint64_t) va_arg(args, u_int);
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291 }
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292 break;
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293
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294 case 'l':
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295 if (sign) {
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296 i64 = (int64_t) va_arg(args, long);
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297 } else {
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298 ui64 = (uint64_t) va_arg(args, u_long);
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299 }
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300 break;
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301
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302 case 'D':
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303 if (sign) {
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304 i64 = (int64_t) va_arg(args, int32_t);
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305 } else {
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306 ui64 = (uint64_t) va_arg(args, uint32_t);
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307 }
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308 break;
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309
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310 case 'L':
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311 if (sign) {
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312 i64 = va_arg(args, int64_t);
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313 } else {
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314 ui64 = va_arg(args, uint64_t);
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315 }
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316 break;
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317
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42
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318 case 'A':
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319 if (sign) {
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320 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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321 } else {
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44
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322 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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323 }
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324
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325 if (max_width) {
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326 width = NGX_ATOMIC_T_LEN;
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327 }
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328
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329 break;
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330
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10
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331 #if !(NGX_WIN32)
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332 case 'r':
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333 i64 = (int64_t) va_arg(args, rlim_t);
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334 sign = 1;
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335 break;
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336 #endif
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337
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338 case 'p':
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339 ui64 = (uintptr_t) va_arg(args, void *);
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340 hexadecimal = 2;
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341 sign = 0;
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342 zero = '0';
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162
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343 width = NGX_PTR_SIZE * 2;
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10
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344 break;
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345
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6
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346 case 'c':
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10
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347 d = va_arg(args, int);
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6
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348 *buf++ = (u_char) (d & 0xff);
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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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10
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353 case 'Z':
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354 *buf++ = '\0';
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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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74
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359 case 'N':
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360 #if (NGX_WIN32)
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361 *buf++ = CR;
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362 #endif
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363 *buf++ = LF;
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364 fmt++;
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365
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366 continue;
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367
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4
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368 case '%':
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369 *buf++ = '%';
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370 fmt++;
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371
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372 continue;
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373
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|
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374 default:
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375 *buf++ = *fmt++;
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376
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377 continue;
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|
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378 }
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|
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379
|
|
10
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380 if (sign) {
|
|
|
381 if (i64 < 0) {
|
|
|
382 *buf++ = '-';
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|
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383 ui64 = (uint64_t) -i64;
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|
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384
|
|
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385 } else {
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386 ui64 = (uint64_t) i64;
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|
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387 }
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|
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388 }
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389
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|
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390 if (hexadecimal == 1) {
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391 do {
|
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392
|
|
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393 /* the "(uint32_t)" cast disables the BCC's warning */
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394 *--p = hex[(uint32_t) (ui64 & 0xf)];
|
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395
|
|
|
396 } while (ui64 >>= 4);
|
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397
|
|
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398 } else if (hexadecimal == 2) {
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|
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399 do {
|
|
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400
|
|
|
401 /* the "(uint32_t)" cast disables the BCC's warning */
|
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402 *--p = HEX[(uint32_t) (ui64 & 0xf)];
|
|
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403
|
|
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404 } while (ui64 >>= 4);
|
|
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405
|
|
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406 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
|
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407
|
|
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408 /*
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|
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409 * To divide 64-bit number and to find the remainder
|
|
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410 * on the x86 platform gcc and icc call the libc functions
|
|
|
411 * [u]divdi3() and [u]moddi3(), they call another function
|
|
42
|
412 * in its turn. On FreeBSD it is the qdivrem() function,
|
|
10
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413 * its source code is about 170 lines of the code.
|
|
|
414 * The glibc counterpart is about 150 lines of the code.
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|
|
415 *
|
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42
|
416 * For 32-bit numbers and some divisors gcc and icc use
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|
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417 * the inlined multiplication and shifts. For example,
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|
|
418 * unsigned "i32 / 10" is compiled to
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|
|
419 *
|
|
|
420 * (i32 * 0xCCCCCCCD) >> 35
|
|
10
|
421 */
|
|
|
422
|
|
|
423 ui32 = (uint32_t) ui64;
|
|
|
424
|
|
|
425 do {
|
|
|
426 *--p = (u_char) (ui32 % 10 + '0');
|
|
|
427 } while (ui32 /= 10);
|
|
|
428
|
|
|
429 } else {
|
|
|
430 do {
|
|
|
431 *--p = (u_char) (ui64 % 10 + '0');
|
|
|
432 } while (ui64 /= 10);
|
|
|
433 }
|
|
|
434
|
|
26
|
435 len = (temp + NGX_INT64_LEN) - p;
|
|
4
|
436
|
|
10
|
437 while (len++ < width && buf < last) {
|
|
|
438 *buf++ = zero;
|
|
4
|
439 }
|
|
|
440
|
|
26
|
441 len = (temp + NGX_INT64_LEN) - p;
|
|
10
|
442 if (buf + len > last) {
|
|
|
443 len = last - buf;
|
|
|
444 }
|
|
|
445
|
|
|
446 buf = ngx_cpymem(buf, p, len);
|
|
4
|
447
|
|
|
448 fmt++;
|
|
|
449
|
|
|
450 } else {
|
|
|
451 *buf++ = *fmt++;
|
|
|
452 }
|
|
|
453 }
|
|
|
454
|
|
|
455 return buf;
|
|
|
456 }
|
|
|
457
|
|
|
458
|
|
286
|
459 /*
|
|
340
|
460 * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
|
|
286
|
461 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
|
|
|
462 * to avoid libc locale overhead. Besides, we use the ngx_uint_t's
|
|
|
463 * instead of the u_char's, because they are slightly faster.
|
|
|
464 */
|
|
|
465
|
|
|
466 ngx_int_t
|
|
|
467 ngx_strcasecmp(u_char *s1, u_char *s2)
|
|
|
468 {
|
|
|
469 ngx_uint_t c1, c2;
|
|
|
470
|
|
|
471 for ( ;; ) {
|
|
|
472 c1 = (ngx_uint_t) *s1++;
|
|
|
473 c2 = (ngx_uint_t) *s2++;
|
|
|
474
|
|
|
475 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
476 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
477
|
|
|
478 if (c1 == c2) {
|
|
|
479
|
|
|
480 if (c1) {
|
|
|
481 continue;
|
|
|
482 }
|
|
|
483
|
|
|
484 return 0;
|
|
|
485 }
|
|
|
486
|
|
|
487 return c1 - c2;
|
|
|
488 }
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
|
492 ngx_int_t
|
|
|
493 ngx_strncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
|
494 {
|
|
|
495 ngx_uint_t c1, c2;
|
|
|
496
|
|
|
497 while (n) {
|
|
|
498 c1 = (ngx_uint_t) *s1++;
|
|
|
499 c2 = (ngx_uint_t) *s2++;
|
|
|
500
|
|
|
501 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
502 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
503
|
|
|
504 if (c1 == c2) {
|
|
|
505
|
|
|
506 if (c1) {
|
|
|
507 n--;
|
|
|
508 continue;
|
|
|
509 }
|
|
|
510
|
|
|
511 return 0;
|
|
|
512 }
|
|
|
513
|
|
|
514 return c1 - c2;
|
|
|
515 }
|
|
|
516
|
|
|
517 return 0;
|
|
|
518 }
|
|
|
519
|
|
|
520
|
|
340
|
521 u_char *
|
|
|
522 ngx_strnstr(u_char *s1, char *s2, size_t len)
|
|
|
523 {
|
|
|
524 u_char c1, c2;
|
|
|
525 size_t n;
|
|
|
526
|
|
|
527 c2 = *(u_char *) s2++;
|
|
|
528
|
|
|
529 n = ngx_strlen(s2);
|
|
|
530
|
|
|
531 do {
|
|
|
532 do {
|
|
|
533 if (len-- == 0) {
|
|
|
534 return NULL;
|
|
|
535 }
|
|
|
536
|
|
|
537 c1 = *s1++;
|
|
|
538
|
|
|
539 if (c1 == 0) {
|
|
|
540 return NULL;
|
|
|
541 }
|
|
|
542
|
|
|
543 } while (c1 != c2);
|
|
|
544
|
|
|
545 if (n > len) {
|
|
|
546 return NULL;
|
|
|
547 }
|
|
|
548
|
|
|
549 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
550
|
|
|
551 return --s1;
|
|
|
552 }
|
|
|
553
|
|
|
554
|
|
|
555 /*
|
|
|
556 * ngx_strstrn() and ngx_strcasestrn() are intended to search for static
|
|
|
557 * substring with known length in null-terminated string. The argument n
|
|
|
558 * must be length of the second substring - 1.
|
|
|
559 */
|
|
|
560
|
|
|
561 u_char *
|
|
|
562 ngx_strstrn(u_char *s1, char *s2, size_t n)
|
|
|
563 {
|
|
|
564 u_char c1, c2;
|
|
|
565
|
|
|
566 c2 = *(u_char *) s2++;
|
|
|
567
|
|
|
568 do {
|
|
|
569 do {
|
|
|
570 c1 = *s1++;
|
|
|
571
|
|
|
572 if (c1 == 0) {
|
|
|
573 return NULL;
|
|
|
574 }
|
|
|
575
|
|
|
576 } while (c1 != c2);
|
|
|
577
|
|
|
578 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
579
|
|
|
580 return --s1;
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
|
584 u_char *
|
|
|
585 ngx_strcasestrn(u_char *s1, char *s2, size_t n)
|
|
|
586 {
|
|
|
587 ngx_uint_t c1, c2;
|
|
|
588
|
|
|
589 c2 = (ngx_uint_t) *s2++;
|
|
|
590 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
591
|
|
|
592 do {
|
|
|
593 do {
|
|
|
594 c1 = (ngx_uint_t) *s1++;
|
|
|
595
|
|
|
596 if (c1 == 0) {
|
|
|
597 return NULL;
|
|
|
598 }
|
|
|
599
|
|
|
600 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
601
|
|
|
602 } while (c1 != c2);
|
|
|
603
|
|
|
604 } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
|
|
|
605
|
|
|
606 return --s1;
|
|
|
607 }
|
|
|
608
|
|
|
609
|
|
42
|
610 ngx_int_t
|
|
|
611 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
|
612 {
|
|
|
613 if (n == 0) {
|
|
|
614 return 0;
|
|
|
615 }
|
|
|
616
|
|
|
617 n--;
|
|
|
618
|
|
|
619 for ( ;; ) {
|
|
|
620 if (s1[n] != s2[n]) {
|
|
|
621 return s1[n] - s2[n];
|
|
|
622 }
|
|
|
623
|
|
|
624 if (n == 0) {
|
|
|
625 return 0;
|
|
|
626 }
|
|
|
627
|
|
|
628 n--;
|
|
|
629 }
|
|
|
630 }
|
|
|
631
|
|
|
632
|
|
42
|
633 ngx_int_t
|
|
|
634 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
635 {
|
|
|
636 u_char c1, c2;
|
|
|
637
|
|
|
638 if (n == 0) {
|
|
|
639 return 0;
|
|
|
640 }
|
|
|
641
|
|
|
642 n--;
|
|
|
643
|
|
|
644 for ( ;; ) {
|
|
|
645 c1 = s1[n];
|
|
|
646 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
647 c1 -= 'a' - 'A';
|
|
|
648 }
|
|
|
649
|
|
|
650 c2 = s2[n];
|
|
|
651 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
652 c2 -= 'a' - 'A';
|
|
|
653 }
|
|
|
654
|
|
|
655 if (c1 != c2) {
|
|
|
656 return c1 - c2;
|
|
|
657 }
|
|
|
658
|
|
|
659 if (n == 0) {
|
|
|
660 return 0;
|
|
|
661 }
|
|
|
662
|
|
|
663 n--;
|
|
|
664 }
|
|
|
665 }
|
|
|
666
|
|
|
667
|
|
42
|
668 ngx_int_t
|
|
274
|
669 ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
|
|
|
670 {
|
|
|
671 size_t n;
|
|
|
672 ngx_int_t m, z;
|
|
|
673
|
|
|
674 if (n1 <= n2) {
|
|
|
675 n = n1;
|
|
|
676 z = -1;
|
|
|
677
|
|
|
678 } else {
|
|
|
679 n = n2;
|
|
|
680 z = 1;
|
|
|
681 }
|
|
|
682
|
|
|
683 m = ngx_memcmp(s1, s2, n);
|
|
|
684
|
|
|
685 if (m || n1 == n2) {
|
|
|
686 return m;
|
|
|
687 }
|
|
|
688
|
|
|
689 return z;
|
|
|
690 }
|
|
|
691
|
|
|
692
|
|
|
693 ngx_int_t
|
|
42
|
694 ngx_atoi(u_char *line, size_t n)
|
|
0
|
695 {
|
|
|
696 ngx_int_t value;
|
|
|
697
|
|
|
698 if (n == 0) {
|
|
|
699 return NGX_ERROR;
|
|
|
700 }
|
|
|
701
|
|
|
702 for (value = 0; n--; line++) {
|
|
|
703 if (*line < '0' || *line > '9') {
|
|
|
704 return NGX_ERROR;
|
|
|
705 }
|
|
|
706
|
|
|
707 value = value * 10 + (*line - '0');
|
|
|
708 }
|
|
|
709
|
|
|
710 if (value < 0) {
|
|
|
711 return NGX_ERROR;
|
|
|
712
|
|
|
713 } else {
|
|
|
714 return value;
|
|
|
715 }
|
|
|
716 }
|
|
|
717
|
|
|
718
|
|
50
|
719 ssize_t
|
|
|
720 ngx_atosz(u_char *line, size_t n)
|
|
|
721 {
|
|
|
722 ssize_t value;
|
|
|
723
|
|
|
724 if (n == 0) {
|
|
|
725 return NGX_ERROR;
|
|
|
726 }
|
|
|
727
|
|
|
728 for (value = 0; n--; line++) {
|
|
|
729 if (*line < '0' || *line > '9') {
|
|
|
730 return NGX_ERROR;
|
|
|
731 }
|
|
|
732
|
|
|
733 value = value * 10 + (*line - '0');
|
|
|
734 }
|
|
|
735
|
|
|
736 if (value < 0) {
|
|
|
737 return NGX_ERROR;
|
|
|
738
|
|
|
739 } else {
|
|
|
740 return value;
|
|
|
741 }
|
|
|
742 }
|
|
|
743
|
|
|
744
|
|
|
745 off_t
|
|
|
746 ngx_atoof(u_char *line, size_t n)
|
|
|
747 {
|
|
|
748 off_t value;
|
|
|
749
|
|
|
750 if (n == 0) {
|
|
|
751 return NGX_ERROR;
|
|
|
752 }
|
|
|
753
|
|
|
754 for (value = 0; n--; line++) {
|
|
|
755 if (*line < '0' || *line > '9') {
|
|
|
756 return NGX_ERROR;
|
|
|
757 }
|
|
|
758
|
|
|
759 value = value * 10 + (*line - '0');
|
|
|
760 }
|
|
|
761
|
|
|
762 if (value < 0) {
|
|
|
763 return NGX_ERROR;
|
|
|
764
|
|
|
765 } else {
|
|
|
766 return value;
|
|
|
767 }
|
|
|
768 }
|
|
|
769
|
|
|
770
|
|
|
771 time_t
|
|
|
772 ngx_atotm(u_char *line, size_t n)
|
|
|
773 {
|
|
|
774 time_t value;
|
|
|
775
|
|
|
776 if (n == 0) {
|
|
|
777 return NGX_ERROR;
|
|
|
778 }
|
|
|
779
|
|
|
780 for (value = 0; n--; line++) {
|
|
|
781 if (*line < '0' || *line > '9') {
|
|
|
782 return NGX_ERROR;
|
|
|
783 }
|
|
|
784
|
|
|
785 value = value * 10 + (*line - '0');
|
|
|
786 }
|
|
|
787
|
|
|
788 if (value < 0) {
|
|
|
789 return NGX_ERROR;
|
|
|
790
|
|
|
791 } else {
|
|
|
792 return value;
|
|
|
793 }
|
|
|
794 }
|
|
|
795
|
|
|
796
|
|
42
|
797 ngx_int_t
|
|
|
798 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
799 {
|
|
250
|
800 u_char c, ch;
|
|
0
|
801 ngx_int_t value;
|
|
|
802
|
|
|
803 if (n == 0) {
|
|
|
804 return NGX_ERROR;
|
|
|
805 }
|
|
|
806
|
|
|
807 for (value = 0; n--; line++) {
|
|
|
808 ch = *line;
|
|
|
809
|
|
|
810 if (ch >= '0' && ch <= '9') {
|
|
|
811 value = value * 16 + (ch - '0');
|
|
|
812 continue;
|
|
|
813 }
|
|
|
814
|
|
250
|
815 c = (u_char) (ch | 0x20);
|
|
0
|
816
|
|
250
|
817 if (c >= 'a' && c <= 'f') {
|
|
|
818 value = value * 16 + (c - 'a' + 10);
|
|
0
|
819 continue;
|
|
|
820 }
|
|
|
821
|
|
|
822 return NGX_ERROR;
|
|
|
823 }
|
|
|
824
|
|
|
825 if (value < 0) {
|
|
|
826 return NGX_ERROR;
|
|
|
827
|
|
|
828 } else {
|
|
|
829 return value;
|
|
|
830 }
|
|
|
831 }
|
|
|
832
|
|
|
833
|
|
356
|
834 u_char *
|
|
|
835 ngx_hex_dump(u_char *dst, u_char *src, size_t len)
|
|
0
|
836 {
|
|
|
837 static u_char hex[] = "0123456789abcdef";
|
|
|
838
|
|
356
|
839 while (len--) {
|
|
|
840 *dst++ = hex[*src >> 4];
|
|
|
841 *dst++ = hex[*src++ & 0xf];
|
|
0
|
842 }
|
|
|
843
|
|
356
|
844 return dst;
|
|
0
|
845 }
|
|
|
846
|
|
|
847
|
|
42
|
848 void
|
|
|
849 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
850 {
|
|
|
851 u_char *d, *s;
|
|
|
852 size_t len;
|
|
|
853 static u_char basis64[] =
|
|
|
854 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
855
|
|
|
856 len = src->len;
|
|
|
857 s = src->data;
|
|
|
858 d = dst->data;
|
|
|
859
|
|
|
860 while (len > 2) {
|
|
|
861 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
862 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
863 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
864 *d++ = basis64[s[2] & 0x3f];
|
|
|
865
|
|
|
866 s += 3;
|
|
|
867 len -= 3;
|
|
|
868 }
|
|
|
869
|
|
|
870 if (len) {
|
|
|
871 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
872
|
|
|
873 if (len == 1) {
|
|
|
874 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
875 *d++ = '=';
|
|
|
876
|
|
|
877 } else {
|
|
|
878 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
879 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
880 }
|
|
|
881
|
|
|
882 *d++ = '=';
|
|
|
883 }
|
|
|
884
|
|
|
885 dst->len = d - dst->data;
|
|
|
886 }
|
|
|
887
|
|
|
888
|
|
42
|
889 ngx_int_t
|
|
|
890 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
891 {
|
|
|
892 size_t len;
|
|
|
893 u_char *d, *s;
|
|
254
|
894 static u_char basis64[] = {
|
|
|
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 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
898 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
899 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
900 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
901 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
902 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
0
|
903
|
|
254
|
904 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
905 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
906 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
907 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
908 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
909 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
910 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
911 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
|
|
|
912 };
|
|
0
|
913
|
|
|
914 for (len = 0; len < src->len; len++) {
|
|
|
915 if (src->data[len] == '=') {
|
|
|
916 break;
|
|
|
917 }
|
|
|
918
|
|
|
919 if (basis64[src->data[len]] == 77) {
|
|
|
920 return NGX_ERROR;
|
|
|
921 }
|
|
|
922 }
|
|
|
923
|
|
|
924 if (len % 4 == 1) {
|
|
|
925 return NGX_ERROR;
|
|
|
926 }
|
|
|
927
|
|
|
928 s = src->data;
|
|
|
929 d = dst->data;
|
|
|
930
|
|
|
931 while (len > 3) {
|
|
|
932 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
933 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
934 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
935
|
|
|
936 s += 4;
|
|
|
937 len -= 4;
|
|
|
938 }
|
|
|
939
|
|
|
940 if (len > 1) {
|
|
|
941 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
942 }
|
|
|
943
|
|
|
944 if (len > 2) {
|
|
|
945 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
946 }
|
|
|
947
|
|
|
948 dst->len = d - dst->data;
|
|
|
949
|
|
|
950 return NGX_OK;
|
|
|
951 }
|
|
|
952
|
|
|
953
|
|
206
|
954 /*
|
|
|
955 * ngx_utf_decode() decodes two and more bytes UTF sequences only
|
|
|
956 * the return values:
|
|
|
957 * 0x80 - 0x10ffff valid character
|
|
|
958 * 0x10ffff - 0xfffffffd invalid sequence
|
|
|
959 * 0xfffffffe incomplete sequence
|
|
|
960 * 0xffffffff error
|
|
|
961 */
|
|
|
962
|
|
|
963 uint32_t
|
|
|
964 ngx_utf_decode(u_char **p, size_t n)
|
|
|
965 {
|
|
|
966 size_t len;
|
|
|
967 uint32_t u, i, valid;
|
|
|
968
|
|
|
969 u = **p;
|
|
|
970
|
|
|
971 if (u > 0xf0) {
|
|
|
972
|
|
|
973 u &= 0x07;
|
|
|
974 valid = 0xffff;
|
|
|
975 len = 3;
|
|
|
976
|
|
|
977 } else if (u > 0xe0) {
|
|
|
978
|
|
|
979 u &= 0x0f;
|
|
|
980 valid = 0x7ff;
|
|
|
981 len = 2;
|
|
|
982
|
|
|
983 } else if (u > 0xc0) {
|
|
|
984
|
|
|
985 u &= 0x1f;
|
|
|
986 valid = 0x7f;
|
|
|
987 len = 1;
|
|
|
988
|
|
|
989 } else {
|
|
|
990 (*p)++;
|
|
|
991 return 0xffffffff;
|
|
|
992 }
|
|
|
993
|
|
|
994 if (n - 1 < len) {
|
|
|
995 return 0xfffffffe;
|
|
|
996 }
|
|
|
997
|
|
|
998 (*p)++;
|
|
|
999
|
|
|
1000 while (len) {
|
|
|
1001 i = *(*p)++;
|
|
|
1002
|
|
|
1003 if (i < 0x80) {
|
|
|
1004 return 0xffffffff;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 u = (u << 6) | (i & 0x3f);
|
|
|
1008
|
|
|
1009 len--;
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 if (u > valid) {
|
|
|
1013 return u;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 return 0xffffffff;
|
|
|
1017 }
|
|
|
1018
|
|
|
1019
|
|
72
|
1020 size_t
|
|
206
|
1021 ngx_utf_length(u_char *p, size_t n)
|
|
72
|
1022 {
|
|
|
1023 u_char c;
|
|
|
1024 size_t len;
|
|
|
1025 ngx_uint_t i;
|
|
|
1026
|
|
206
|
1027 for (len = 0, i = 0; i < n; len++, i++) {
|
|
72
|
1028
|
|
206
|
1029 c = p[i];
|
|
72
|
1030
|
|
|
1031 if (c < 0x80) {
|
|
|
1032 continue;
|
|
|
1033 }
|
|
|
1034
|
|
76
|
1035 if (c >= 0xc0) {
|
|
|
1036 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
1037 i++;
|
|
|
1038 }
|
|
|
1039
|
|
|
1040 continue;
|
|
72
|
1041 }
|
|
|
1042
|
|
76
|
1043 /* invalid utf */
|
|
|
1044
|
|
206
|
1045 return n;
|
|
72
|
1046 }
|
|
|
1047
|
|
|
1048 return len;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051
|
|
76
|
1052 u_char *
|
|
|
1053 ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n)
|
|
|
1054 {
|
|
|
1055 u_char c;
|
|
|
1056
|
|
|
1057 if (n == 0) {
|
|
|
1058 return dst;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 for ( /* void */ ; --n; dst++, src++) {
|
|
|
1062
|
|
|
1063 c = *src;
|
|
|
1064 *dst = c;
|
|
|
1065
|
|
|
1066 if (c < 0x80) {
|
|
|
1067 if (*dst != '\0') {
|
|
|
1068 continue;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 return dst;
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 if (c >= 0xc0) {
|
|
|
1075 for (c <<= 1; c & 0x80; c <<= 1) {
|
|
|
1076 *++dst = *++src;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 continue;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 /* invalid utf */
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 *dst = '\0';
|
|
|
1086
|
|
|
1087 return dst;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090
|
|
42
|
1091 uintptr_t
|
|
|
1092 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
1093 {
|
|
254
|
1094 ngx_uint_t i, n;
|
|
|
1095 uint32_t *escape;
|
|
|
1096 static u_char hex[] = "0123456789abcdef";
|
|
10
|
1097
|
|
254
|
1098 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
1099
|
|
254
|
1100 static uint32_t uri[] = {
|
|
|
1101 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
1102
|
|
254
|
1103 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1104 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
|
1105
|
|
|
1106 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1107 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
2
|
1108
|
|
254
|
1109 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1110 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
1111
|
|
254
|
1112 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1113 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1114 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1115 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1116 };
|
|
2
|
1117
|
|
254
|
1118 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
1119
|
|
254
|
1120 static uint32_t args[] = {
|
|
|
1121 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1122
|
|
|
1123 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1124 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
1125
|
|
254
|
1126 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1127 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1128
|
|
254
|
1129 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1130 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1131
|
|
254
|
1132 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1133 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1134 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1135 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1136 };
|
|
34
|
1137
|
|
328
|
1138 /* " ", "#", """, "%", "'", %00-%1F, %7F-%FF */
|
|
34
|
1139
|
|
254
|
1140 static uint32_t html[] = {
|
|
|
1141 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
10
|
1142
|
|
254
|
1143 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
320
|
1144 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
254
|
1145
|
|
|
1146 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1147 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1148
|
|
254
|
1149 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1150 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1151
|
|
254
|
1152 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1153 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1154 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1155 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1156 };
|
|
10
|
1157
|
|
328
|
1158 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
10
|
1159
|
|
320
|
1160 static uint32_t refresh[] = {
|
|
|
1161 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1162
|
|
|
1163 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
346
|
1164 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */
|
|
320
|
1165
|
|
|
1166 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1167 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1168
|
|
|
1169 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1170 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1171
|
|
|
1172 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1173 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1174 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1175 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1176 };
|
|
|
1177
|
|
328
|
1178 /* " ", "%", %00-%1F */
|
|
322
|
1179
|
|
|
1180 static uint32_t memcached[] = {
|
|
|
1181 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1182
|
|
|
1183 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
328
|
1184 0x00000021, /* 0000 0000 0000 0000 0000 0000 0010 0001 */
|
|
322
|
1185
|
|
|
1186 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1187 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1188
|
|
|
1189 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1190 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1191
|
|
|
1192 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1193 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1194 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1195 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1196 };
|
|
|
1197
|
|
328
|
1198 /* mail_auth is the same as memcached */
|
|
|
1199
|
|
|
1200 static uint32_t *map[] =
|
|
|
1201 { uri, args, html, refresh, memcached, memcached };
|
|
320
|
1202
|
|
|
1203
|
|
|
1204 escape = map[type];
|
|
10
|
1205
|
|
2
|
1206 if (dst == NULL) {
|
|
|
1207
|
|
|
1208 /* find the number of the characters to be escaped */
|
|
0
|
1209
|
|
2
|
1210 n = 0;
|
|
|
1211
|
|
|
1212 for (i = 0; i < size; i++) {
|
|
|
1213 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1214 n++;
|
|
|
1215 }
|
|
|
1216 src++;
|
|
|
1217 }
|
|
|
1218
|
|
34
|
1219 return (uintptr_t) n;
|
|
0
|
1220 }
|
|
|
1221
|
|
2
|
1222 for (i = 0; i < size; i++) {
|
|
|
1223 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1224 *dst++ = '%';
|
|
|
1225 *dst++ = hex[*src >> 4];
|
|
|
1226 *dst++ = hex[*src & 0xf];
|
|
|
1227 src++;
|
|
0
|
1228
|
|
2
|
1229 } else {
|
|
|
1230 *dst++ = *src++;
|
|
|
1231 }
|
|
0
|
1232 }
|
|
|
1233
|
|
34
|
1234 return (uintptr_t) dst;
|
|
0
|
1235 }
|
|
126
|
1236
|
|
|
1237
|
|
|
1238 void
|
|
150
|
1239 ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type)
|
|
126
|
1240 {
|
|
|
1241 u_char *d, *s, ch, c, decoded;
|
|
|
1242 enum {
|
|
|
1243 sw_usual = 0,
|
|
|
1244 sw_quoted,
|
|
|
1245 sw_quoted_second
|
|
|
1246 } state;
|
|
|
1247
|
|
|
1248 d = *dst;
|
|
|
1249 s = *src;
|
|
|
1250
|
|
|
1251 state = 0;
|
|
|
1252 decoded = 0;
|
|
|
1253
|
|
|
1254 while (size--) {
|
|
|
1255
|
|
|
1256 ch = *s++;
|
|
|
1257
|
|
|
1258 switch (state) {
|
|
|
1259 case sw_usual:
|
|
342
|
1260 if (ch == '?'
|
|
|
1261 && (type & (NGX_UNESCAPE_URI|NGX_UNESCAPE_REDIRECT)))
|
|
|
1262 {
|
|
126
|
1263 *d++ = ch;
|
|
|
1264 goto done;
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 if (ch == '%') {
|
|
|
1268 state = sw_quoted;
|
|
|
1269 break;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 *d++ = ch;
|
|
|
1273 break;
|
|
|
1274
|
|
|
1275 case sw_quoted:
|
|
|
1276
|
|
|
1277 if (ch >= '0' && ch <= '9') {
|
|
|
1278 decoded = (u_char) (ch - '0');
|
|
|
1279 state = sw_quoted_second;
|
|
|
1280 break;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 c = (u_char) (ch | 0x20);
|
|
|
1284 if (c >= 'a' && c <= 'f') {
|
|
|
1285 decoded = (u_char) (c - 'a' + 10);
|
|
|
1286 state = sw_quoted_second;
|
|
|
1287 break;
|
|
|
1288 }
|
|
|
1289
|
|
138
|
1290 /* the invalid quoted character */
|
|
126
|
1291
|
|
138
|
1292 state = sw_usual;
|
|
|
1293
|
|
|
1294 *d++ = ch;
|
|
126
|
1295
|
|
|
1296 break;
|
|
|
1297
|
|
|
1298 case sw_quoted_second:
|
|
|
1299
|
|
138
|
1300 state = sw_usual;
|
|
|
1301
|
|
126
|
1302 if (ch >= '0' && ch <= '9') {
|
|
|
1303 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
1304
|
|
342
|
1305 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1306 if (ch > '%' && ch < 0x7f) {
|
|
|
1307 *d++ = ch;
|
|
|
1308 break;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
|
1312
|
|
126
|
1313 break;
|
|
|
1314 }
|
|
|
1315
|
|
150
|
1316 *d++ = ch;
|
|
126
|
1317
|
|
|
1318 break;
|
|
|
1319 }
|
|
|
1320
|
|
|
1321 c = (u_char) (ch | 0x20);
|
|
|
1322 if (c >= 'a' && c <= 'f') {
|
|
|
1323 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
1324
|
|
342
|
1325 if (type & NGX_UNESCAPE_URI) {
|
|
|
1326 if (ch == '?') {
|
|
|
1327 *d++ = ch;
|
|
|
1328 goto done;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 *d++ = ch;
|
|
|
1332 break;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1336 if (ch == '?') {
|
|
|
1337 *d++ = ch;
|
|
|
1338 goto done;
|
|
|
1339 }
|
|
126
|
1340
|
|
150
|
1341 if (ch > '%' && ch < 0x7f) {
|
|
|
1342 *d++ = ch;
|
|
|
1343 break;
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
126
|
1347 break;
|
|
|
1348 }
|
|
|
1349
|
|
150
|
1350 *d++ = ch;
|
|
126
|
1351
|
|
|
1352 break;
|
|
|
1353 }
|
|
|
1354
|
|
138
|
1355 /* the invalid quoted character */
|
|
126
|
1356
|
|
|
1357 break;
|
|
|
1358 }
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 done:
|
|
|
1362
|
|
|
1363 *dst = d;
|
|
|
1364 *src = s;
|
|
|
1365 }
|
|
132
|
1366
|
|
|
1367
|
|
340
|
1368 uintptr_t
|
|
|
1369 ngx_escape_html(u_char *dst, u_char *src, size_t size)
|
|
|
1370 {
|
|
|
1371 u_char ch;
|
|
|
1372 ngx_uint_t i, len;
|
|
|
1373
|
|
|
1374 if (dst == NULL) {
|
|
|
1375
|
|
|
1376 len = 0;
|
|
|
1377
|
|
|
1378 for (i = 0; i < size; i++) {
|
|
|
1379 switch (*src++) {
|
|
|
1380
|
|
|
1381 case '<':
|
|
|
1382 len += sizeof("<") - 2;
|
|
|
1383 break;
|
|
|
1384
|
|
|
1385 case '>':
|
|
|
1386 len += sizeof(">") - 2;
|
|
|
1387 break;
|
|
|
1388
|
|
|
1389 case '&':
|
|
|
1390 len += sizeof("&") - 2;
|
|
|
1391 break;
|
|
|
1392
|
|
|
1393 default:
|
|
|
1394 break;
|
|
|
1395 }
|
|
|
1396 }
|
|
|
1397
|
|
|
1398 return (uintptr_t) len;
|
|
|
1399 }
|
|
|
1400
|
|
|
1401 for (i = 0; i < size; i++) {
|
|
|
1402 ch = *src++;
|
|
|
1403
|
|
|
1404 switch (ch) {
|
|
|
1405
|
|
|
1406 case '<':
|
|
|
1407 *dst++ = '&'; *dst++ = 'l'; *dst++ = 't'; *dst++ = ';';
|
|
|
1408 break;
|
|
|
1409
|
|
|
1410 case '>':
|
|
|
1411 *dst++ = '&'; *dst++ = 'g'; *dst++ = 't'; *dst++ = ';';
|
|
|
1412 break;
|
|
|
1413
|
|
|
1414 case '&':
|
|
|
1415 *dst++ = '&'; *dst++ = 'a'; *dst++ = 'm'; *dst++ = 'p';
|
|
|
1416 *dst++ = ';';
|
|
|
1417 break;
|
|
|
1418
|
|
|
1419 default:
|
|
|
1420 *dst++ = ch;
|
|
|
1421 break;
|
|
|
1422 }
|
|
|
1423 }
|
|
|
1424
|
|
|
1425 return (uintptr_t) dst;
|
|
|
1426 }
|
|
|
1427
|
|
|
1428
|
|
302
|
1429 /* ngx_sort() is implemented as insertion sort because we need stable sort */
|
|
|
1430
|
|
|
1431 void
|
|
|
1432 ngx_sort(void *base, size_t n, size_t size,
|
|
|
1433 int (*cmp)(const void *, const void *))
|
|
|
1434 {
|
|
|
1435 u_char *p1, *p2;
|
|
|
1436 u_char buf[256];
|
|
|
1437
|
|
|
1438 for (p1 = (u_char *) base + size;
|
|
|
1439 p1 < (u_char *) base + n * size;
|
|
|
1440 p1 += size)
|
|
|
1441 {
|
|
|
1442 ngx_memcpy(buf, p1, size);
|
|
|
1443
|
|
|
1444 for (p2 = p1;
|
|
|
1445 p2 > (u_char *) base && cmp(p2 - size, buf) > 0;
|
|
|
1446 p2 -= size)
|
|
|
1447 {
|
|
|
1448 ngx_memcpy(p2, p2 - size, size);
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 ngx_memcpy(p2, buf, size);
|
|
|
1452 }
|
|
|
1453 }
|
|
|
1454
|
|
|
1455
|
|
132
|
1456 #if (NGX_MEMCPY_LIMIT)
|
|
|
1457
|
|
|
1458 void *
|
|
|
1459 ngx_memcpy(void *dst, void *src, size_t n)
|
|
|
1460 {
|
|
|
1461 if (n > NGX_MEMCPY_LIMIT) {
|
|
|
1462 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n);
|
|
|
1463 ngx_debug_point();
|
|
|
1464 }
|
|
|
1465
|
|
|
1466 return memcpy(dst, src, n);
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 #endif
|
