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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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416
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11 static u_char *ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64,
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12 u_char zero, ngx_uint_t hexadecimal, ngx_uint_t width);
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13
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14
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392
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15 void
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16 ngx_strlow(u_char *dst, u_char *src, size_t n)
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17 {
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540
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18 while (n) {
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392
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19 *dst = ngx_tolower(*src);
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20 dst++;
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21 src++;
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540
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22 n--;
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392
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23 }
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24 }
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25
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26
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42
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27 u_char *
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28 ngx_cpystrn(u_char *dst, u_char *src, size_t n)
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0
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29 {
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30 if (n == 0) {
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31 return dst;
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32 }
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33
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498
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34 while (--n) {
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0
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35 *dst = *src;
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36
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37 if (*dst == '\0') {
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38 return dst;
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39 }
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498
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40
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41 dst++;
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42 src++;
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0
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43 }
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44
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45 *dst = '\0';
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46
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47 return dst;
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48 }
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49
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50
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42
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51 u_char *
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52 ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src)
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34
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53 {
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54 u_char *dst;
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55
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382
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56 dst = ngx_pnalloc(pool, src->len);
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50
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57 if (dst == NULL) {
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34
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58 return NULL;
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59 }
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60
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61 ngx_memcpy(dst, src->data, src->len);
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62
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63 return dst;
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64 }
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65
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66
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4
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67 /*
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68 * supported formats:
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22
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69 * %[0][width][x][X]O off_t
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10
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70 * %[0][width]T time_t
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71 * %[0][width][u][x|X]z ssize_t/size_t
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72 * %[0][width][u][x|X]d int/u_int
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73 * %[0][width][u][x|X]l long
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74 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
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75 * %[0][width][u][x|X]D int32_t/uint32_t
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76 * %[0][width][u][x|X]L int64_t/uint64_t
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44
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77 * %[0][width|m][u][x|X]A ngx_atomic_int_t/ngx_atomic_uint_t
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416
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78 * %[0][width][.width]f float
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10
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79 * %P ngx_pid_t
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106
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80 * %M ngx_msec_t
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10
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81 * %r rlim_t
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328
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82 * %p void *
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83 * %V ngx_str_t *
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84 * %v ngx_variable_value_t *
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10
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85 * %s null-terminated string
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358
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86 * %*s length and string
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10
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87 * %Z '\0'
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74
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88 * %N '\n'
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10
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89 * %c char
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90 * %% %
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4
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91 *
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10
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92 * reserved:
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93 * %t ptrdiff_t
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518
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94 * %S null-terminated wchar string
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10
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95 * %C wchar
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4
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96 */
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97
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10
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98
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52
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99 u_char * ngx_cdecl
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42
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100 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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101 {
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102 u_char *p;
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103 va_list args;
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104
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105 va_start(args, fmt);
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484
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106 p = ngx_vslprintf(buf, (void *) -1, fmt, args);
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10
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107 va_end(args);
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108
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109 return p;
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110 }
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111
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112
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52
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113 u_char * ngx_cdecl
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42
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114 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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115 {
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10
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116 u_char *p;
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117 va_list args;
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118
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119 va_start(args, fmt);
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484
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120 p = ngx_vslprintf(buf, buf + max, fmt, args);
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121 va_end(args);
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122
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123 return p;
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124 }
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125
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126
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127 u_char * ngx_cdecl
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128 ngx_slprintf(u_char *buf, u_char *last, const char *fmt, ...)
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129 {
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130 u_char *p;
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131 va_list args;
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132
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133 va_start(args, fmt);
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134 p = ngx_vslprintf(buf, last, fmt, args);
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10
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135 va_end(args);
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136
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137 return p;
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138 }
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139
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4
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140
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42
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141 u_char *
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484
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142 ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args)
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10
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143 {
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484
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144 u_char *p, zero;
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320
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145 int d;
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416
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146 float f, scale;
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358
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147 size_t len, slen;
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320
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148 int64_t i64;
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149 uint64_t ui64;
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150 ngx_msec_t ms;
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540
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151 ngx_uint_t width, sign, hex, max_width, frac_width, n;
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328
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152 ngx_str_t *v;
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153 ngx_variable_value_t *vv;
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4
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154
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10
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155 while (*fmt && buf < last) {
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156
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157 /*
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158 * "buf < last" means that we could copy at least one character:
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159 * the plain character, "%%", "%c", and minus without the checking
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160 */
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161
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4
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162 if (*fmt == '%') {
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163
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10
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164 i64 = 0;
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165 ui64 = 0;
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166
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167 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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168 width = 0;
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169 sign = 1;
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416
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170 hex = 0;
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42
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171 max_width = 0;
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416
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172 frac_width = 0;
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364
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173 slen = (size_t) -1;
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4
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174
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175 while (*fmt >= '0' && *fmt <= '9') {
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176 width = width * 10 + *fmt++ - '0';
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177 }
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178
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179
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180 for ( ;; ) {
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181 switch (*fmt) {
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182
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183 case 'u':
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184 sign = 0;
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185 fmt++;
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186 continue;
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187
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16
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188 case 'm':
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42
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189 max_width = 1;
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16
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190 fmt++;
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191 continue;
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192
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10
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193 case 'X':
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416
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194 hex = 2;
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10
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195 sign = 0;
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196 fmt++;
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197 continue;
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198
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4
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199 case 'x':
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416
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200 hex = 1;
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10
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201 sign = 0;
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4
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202 fmt++;
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203 continue;
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204
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416
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205 case '.':
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206 fmt++;
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207
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208 while (*fmt >= '0' && *fmt <= '9') {
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209 frac_width = frac_width * 10 + *fmt++ - '0';
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210 }
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211
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212 break;
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213
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358
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214 case '*':
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364
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215 slen = va_arg(args, size_t);
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358
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216 fmt++;
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217 continue;
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218
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4
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219 default:
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220 break;
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221 }
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222
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223 break;
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224 }
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225
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226
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227 switch (*fmt) {
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228
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10
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229 case 'V':
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328
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230 v = va_arg(args, ngx_str_t *);
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4
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231
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320
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232 len = v->len;
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122
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233 len = (buf + len < last) ? len : (size_t) (last - buf);
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234
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320
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235 buf = ngx_cpymem(buf, v->data, len);
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10
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236 fmt++;
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4
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237
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10
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238 continue;
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4
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239
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328
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240 case 'v':
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241 vv = va_arg(args, ngx_variable_value_t *);
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242
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243 len = vv->len;
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244 len = (buf + len < last) ? len : (size_t) (last - buf);
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245
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246 buf = ngx_cpymem(buf, vv->data, len);
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247 fmt++;
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248
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249 continue;
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250
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4
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251 case 's':
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10
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252 p = va_arg(args, u_char *);
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4
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253
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364
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254 if (slen == (size_t) -1) {
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358
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255 while (*p && buf < last) {
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256 *buf++ = *p++;
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257 }
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258
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259 } else {
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364
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260 len = (buf + slen < last) ? slen : (size_t) (last - buf);
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261
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262 buf = ngx_cpymem(buf, p, len);
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4
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263 }
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358
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264
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4
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265 fmt++;
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266
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267 continue;
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268
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10
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269 case 'O':
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270 i64 = (int64_t) va_arg(args, off_t);
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271 sign = 1;
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272 break;
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273
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274 case 'P':
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275 i64 = (int64_t) va_arg(args, ngx_pid_t);
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276 sign = 1;
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277 break;
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278
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279 case 'T':
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280 i64 = (int64_t) va_arg(args, time_t);
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281 sign = 1;
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282 break;
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283
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106
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284 case 'M':
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110
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285 ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
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286 if ((ngx_msec_int_t) ms == -1) {
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287 sign = 1;
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288 i64 = -1;
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289 } else {
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290 sign = 0;
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291 ui64 = (uint64_t) ms;
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292 }
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106
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293 break;
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294
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10
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295 case 'z':
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296 if (sign) {
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297 i64 = (int64_t) va_arg(args, ssize_t);
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298 } else {
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299 ui64 = (uint64_t) va_arg(args, size_t);
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300 }
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301 break;
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302
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303 case 'i':
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304 if (sign) {
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305 i64 = (int64_t) va_arg(args, ngx_int_t);
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306 } else {
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307 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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308 }
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42
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309
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310 if (max_width) {
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311 width = NGX_INT_T_LEN;
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312 }
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313
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10
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314 break;
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315
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316 case 'd':
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317 if (sign) {
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318 i64 = (int64_t) va_arg(args, int);
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319 } else {
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320 ui64 = (uint64_t) va_arg(args, u_int);
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321 }
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322 break;
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323
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324 case 'l':
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325 if (sign) {
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326 i64 = (int64_t) va_arg(args, long);
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327 } else {
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328 ui64 = (uint64_t) va_arg(args, u_long);
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329 }
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330 break;
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331
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332 case 'D':
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333 if (sign) {
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334 i64 = (int64_t) va_arg(args, int32_t);
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335 } else {
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336 ui64 = (uint64_t) va_arg(args, uint32_t);
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337 }
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338 break;
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339
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340 case 'L':
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341 if (sign) {
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342 i64 = va_arg(args, int64_t);
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343 } else {
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344 ui64 = va_arg(args, uint64_t);
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345 }
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346 break;
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347
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42
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348 case 'A':
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349 if (sign) {
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350 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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351 } else {
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44
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352 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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353 }
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354
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355 if (max_width) {
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356 width = NGX_ATOMIC_T_LEN;
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357 }
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358
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359 break;
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360
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416
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361 case 'f':
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362 f = (float) va_arg(args, double);
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363
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364 if (f < 0) {
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365 *buf++ = '-';
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366 f = -f;
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367 }
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368
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369 ui64 = (int64_t) f;
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370
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371 buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width);
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372
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373 if (frac_width) {
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374
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375 if (buf < last) {
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376 *buf++ = '.';
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377 }
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378
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379 scale = 1.0;
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380
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540
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381 for (n = frac_width; n; n--) {
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416
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382 scale *= 10.0;
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383 }
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384
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385 /*
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386 * (int64_t) cast is required for msvc6:
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387 * it can not convert uint64_t to double
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388 */
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389 ui64 = (uint64_t) ((f - (int64_t) ui64) * scale);
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390
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391 buf = ngx_sprintf_num(buf, last, ui64, '0', 0, frac_width);
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392 }
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393
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394 fmt++;
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395
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396 continue;
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397
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10
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398 #if !(NGX_WIN32)
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399 case 'r':
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400 i64 = (int64_t) va_arg(args, rlim_t);
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401 sign = 1;
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402 break;
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403 #endif
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404
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405 case 'p':
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406 ui64 = (uintptr_t) va_arg(args, void *);
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416
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407 hex = 2;
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10
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408 sign = 0;
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409 zero = '0';
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162
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410 width = NGX_PTR_SIZE * 2;
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10
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411 break;
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412
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6
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413 case 'c':
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10
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414 d = va_arg(args, int);
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6
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415 *buf++ = (u_char) (d & 0xff);
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416 fmt++;
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417
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418 continue;
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419
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10
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420 case 'Z':
|
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421 *buf++ = '\0';
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422 fmt++;
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423
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424 continue;
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425
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74
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426 case 'N':
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427 #if (NGX_WIN32)
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428 *buf++ = CR;
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429 #endif
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430 *buf++ = LF;
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431 fmt++;
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432
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433 continue;
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434
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4
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435 case '%':
|
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436 *buf++ = '%';
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437 fmt++;
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438
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439 continue;
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440
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|
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441 default:
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|
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442 *buf++ = *fmt++;
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443
|
|
|
444 continue;
|
|
|
445 }
|
|
|
446
|
|
10
|
447 if (sign) {
|
|
|
448 if (i64 < 0) {
|
|
|
449 *buf++ = '-';
|
|
|
450 ui64 = (uint64_t) -i64;
|
|
|
451
|
|
|
452 } else {
|
|
|
453 ui64 = (uint64_t) i64;
|
|
|
454 }
|
|
|
455 }
|
|
|
456
|
|
416
|
457 buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width);
|
|
4
|
458
|
|
|
459 fmt++;
|
|
|
460
|
|
|
461 } else {
|
|
|
462 *buf++ = *fmt++;
|
|
|
463 }
|
|
|
464 }
|
|
|
465
|
|
|
466 return buf;
|
|
|
467 }
|
|
|
468
|
|
|
469
|
|
416
|
470 static u_char *
|
|
|
471 ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64, u_char zero,
|
|
|
472 ngx_uint_t hexadecimal, ngx_uint_t width)
|
|
|
473 {
|
|
|
474 u_char *p, temp[NGX_INT64_LEN + 1];
|
|
|
475 /*
|
|
|
476 * we need temp[NGX_INT64_LEN] only,
|
|
|
477 * but icc issues the warning
|
|
|
478 */
|
|
|
479 size_t len;
|
|
|
480 uint32_t ui32;
|
|
|
481 static u_char hex[] = "0123456789abcdef";
|
|
|
482 static u_char HEX[] = "0123456789ABCDEF";
|
|
|
483
|
|
|
484 p = temp + NGX_INT64_LEN;
|
|
|
485
|
|
|
486 if (hexadecimal == 0) {
|
|
|
487
|
|
|
488 if (ui64 <= NGX_MAX_UINT32_VALUE) {
|
|
|
489
|
|
|
490 /*
|
|
|
491 * To divide 64-bit numbers and to find remainders
|
|
|
492 * on the x86 platform gcc and icc call the libc functions
|
|
|
493 * [u]divdi3() and [u]moddi3(), they call another function
|
|
|
494 * in its turn. On FreeBSD it is the qdivrem() function,
|
|
|
495 * its source code is about 170 lines of the code.
|
|
|
496 * The glibc counterpart is about 150 lines of the code.
|
|
|
497 *
|
|
|
498 * For 32-bit numbers and some divisors gcc and icc use
|
|
|
499 * a inlined multiplication and shifts. For example,
|
|
|
500 * unsigned "i32 / 10" is compiled to
|
|
|
501 *
|
|
|
502 * (i32 * 0xCCCCCCCD) >> 35
|
|
|
503 */
|
|
|
504
|
|
|
505 ui32 = (uint32_t) ui64;
|
|
|
506
|
|
|
507 do {
|
|
|
508 *--p = (u_char) (ui32 % 10 + '0');
|
|
|
509 } while (ui32 /= 10);
|
|
|
510
|
|
|
511 } else {
|
|
|
512 do {
|
|
|
513 *--p = (u_char) (ui64 % 10 + '0');
|
|
|
514 } while (ui64 /= 10);
|
|
|
515 }
|
|
|
516
|
|
|
517 } else if (hexadecimal == 1) {
|
|
|
518
|
|
|
519 do {
|
|
|
520
|
|
|
521 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
|
522 *--p = hex[(uint32_t) (ui64 & 0xf)];
|
|
|
523
|
|
|
524 } while (ui64 >>= 4);
|
|
|
525
|
|
|
526 } else { /* hexadecimal == 2 */
|
|
|
527
|
|
|
528 do {
|
|
|
529
|
|
|
530 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
|
531 *--p = HEX[(uint32_t) (ui64 & 0xf)];
|
|
|
532
|
|
|
533 } while (ui64 >>= 4);
|
|
|
534 }
|
|
|
535
|
|
|
536 /* zero or space padding */
|
|
|
537
|
|
|
538 len = (temp + NGX_INT64_LEN) - p;
|
|
|
539
|
|
|
540 while (len++ < width && buf < last) {
|
|
|
541 *buf++ = zero;
|
|
|
542 }
|
|
|
543
|
|
|
544 /* number safe copy */
|
|
|
545
|
|
|
546 len = (temp + NGX_INT64_LEN) - p;
|
|
|
547
|
|
|
548 if (buf + len > last) {
|
|
|
549 len = last - buf;
|
|
|
550 }
|
|
|
551
|
|
|
552 return ngx_cpymem(buf, p, len);
|
|
|
553 }
|
|
|
554
|
|
|
555
|
|
286
|
556 /*
|
|
340
|
557 * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
|
|
286
|
558 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
|
|
|
559 * to avoid libc locale overhead. Besides, we use the ngx_uint_t's
|
|
|
560 * instead of the u_char's, because they are slightly faster.
|
|
|
561 */
|
|
|
562
|
|
|
563 ngx_int_t
|
|
|
564 ngx_strcasecmp(u_char *s1, u_char *s2)
|
|
|
565 {
|
|
|
566 ngx_uint_t c1, c2;
|
|
|
567
|
|
|
568 for ( ;; ) {
|
|
|
569 c1 = (ngx_uint_t) *s1++;
|
|
|
570 c2 = (ngx_uint_t) *s2++;
|
|
|
571
|
|
526
|
572 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
573 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
286
|
574
|
|
|
575 if (c1 == c2) {
|
|
|
576
|
|
|
577 if (c1) {
|
|
|
578 continue;
|
|
|
579 }
|
|
|
580
|
|
|
581 return 0;
|
|
|
582 }
|
|
|
583
|
|
|
584 return c1 - c2;
|
|
|
585 }
|
|
|
586 }
|
|
|
587
|
|
|
588
|
|
|
589 ngx_int_t
|
|
|
590 ngx_strncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
|
591 {
|
|
|
592 ngx_uint_t c1, c2;
|
|
|
593
|
|
|
594 while (n) {
|
|
|
595 c1 = (ngx_uint_t) *s1++;
|
|
|
596 c2 = (ngx_uint_t) *s2++;
|
|
|
597
|
|
526
|
598 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
599 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
286
|
600
|
|
|
601 if (c1 == c2) {
|
|
|
602
|
|
|
603 if (c1) {
|
|
|
604 n--;
|
|
|
605 continue;
|
|
|
606 }
|
|
|
607
|
|
|
608 return 0;
|
|
|
609 }
|
|
|
610
|
|
|
611 return c1 - c2;
|
|
|
612 }
|
|
|
613
|
|
|
614 return 0;
|
|
|
615 }
|
|
|
616
|
|
|
617
|
|
340
|
618 u_char *
|
|
|
619 ngx_strnstr(u_char *s1, char *s2, size_t len)
|
|
|
620 {
|
|
|
621 u_char c1, c2;
|
|
|
622 size_t n;
|
|
|
623
|
|
|
624 c2 = *(u_char *) s2++;
|
|
|
625
|
|
|
626 n = ngx_strlen(s2);
|
|
|
627
|
|
|
628 do {
|
|
|
629 do {
|
|
|
630 if (len-- == 0) {
|
|
|
631 return NULL;
|
|
|
632 }
|
|
|
633
|
|
|
634 c1 = *s1++;
|
|
|
635
|
|
|
636 if (c1 == 0) {
|
|
|
637 return NULL;
|
|
|
638 }
|
|
|
639
|
|
|
640 } while (c1 != c2);
|
|
|
641
|
|
|
642 if (n > len) {
|
|
|
643 return NULL;
|
|
|
644 }
|
|
|
645
|
|
|
646 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
647
|
|
|
648 return --s1;
|
|
|
649 }
|
|
|
650
|
|
|
651
|
|
|
652 /*
|
|
|
653 * ngx_strstrn() and ngx_strcasestrn() are intended to search for static
|
|
|
654 * substring with known length in null-terminated string. The argument n
|
|
|
655 * must be length of the second substring - 1.
|
|
|
656 */
|
|
|
657
|
|
|
658 u_char *
|
|
|
659 ngx_strstrn(u_char *s1, char *s2, size_t n)
|
|
|
660 {
|
|
|
661 u_char c1, c2;
|
|
|
662
|
|
|
663 c2 = *(u_char *) s2++;
|
|
|
664
|
|
|
665 do {
|
|
|
666 do {
|
|
|
667 c1 = *s1++;
|
|
|
668
|
|
|
669 if (c1 == 0) {
|
|
|
670 return NULL;
|
|
|
671 }
|
|
|
672
|
|
|
673 } while (c1 != c2);
|
|
|
674
|
|
|
675 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
676
|
|
|
677 return --s1;
|
|
|
678 }
|
|
|
679
|
|
|
680
|
|
|
681 u_char *
|
|
|
682 ngx_strcasestrn(u_char *s1, char *s2, size_t n)
|
|
|
683 {
|
|
|
684 ngx_uint_t c1, c2;
|
|
|
685
|
|
|
686 c2 = (ngx_uint_t) *s2++;
|
|
526
|
687 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
340
|
688
|
|
|
689 do {
|
|
|
690 do {
|
|
|
691 c1 = (ngx_uint_t) *s1++;
|
|
|
692
|
|
|
693 if (c1 == 0) {
|
|
|
694 return NULL;
|
|
|
695 }
|
|
|
696
|
|
526
|
697 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
340
|
698
|
|
|
699 } while (c1 != c2);
|
|
|
700
|
|
|
701 } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
|
|
|
702
|
|
|
703 return --s1;
|
|
|
704 }
|
|
|
705
|
|
|
706
|
|
472
|
707 /*
|
|
|
708 * ngx_strlcasestrn() is intended to search for static substring
|
|
|
709 * with known length in string until the argument last. The argument n
|
|
|
710 * must be length of the second substring - 1.
|
|
|
711 */
|
|
|
712
|
|
|
713 u_char *
|
|
|
714 ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n)
|
|
|
715 {
|
|
|
716 ngx_uint_t c1, c2;
|
|
|
717
|
|
|
718 c2 = (ngx_uint_t) *s2++;
|
|
526
|
719 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
472
|
720 last -= n;
|
|
|
721
|
|
|
722 do {
|
|
|
723 do {
|
|
476
|
724 if (s1 >= last) {
|
|
472
|
725 return NULL;
|
|
|
726 }
|
|
|
727
|
|
|
728 c1 = (ngx_uint_t) *s1++;
|
|
|
729
|
|
526
|
730 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
472
|
731
|
|
|
732 } while (c1 != c2);
|
|
|
733
|
|
|
734 } while (ngx_strncasecmp(s1, s2, n) != 0);
|
|
|
735
|
|
|
736 return --s1;
|
|
|
737 }
|
|
|
738
|
|
|
739
|
|
42
|
740 ngx_int_t
|
|
|
741 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
|
742 {
|
|
|
743 if (n == 0) {
|
|
|
744 return 0;
|
|
|
745 }
|
|
|
746
|
|
|
747 n--;
|
|
|
748
|
|
|
749 for ( ;; ) {
|
|
|
750 if (s1[n] != s2[n]) {
|
|
|
751 return s1[n] - s2[n];
|
|
|
752 }
|
|
|
753
|
|
|
754 if (n == 0) {
|
|
|
755 return 0;
|
|
|
756 }
|
|
|
757
|
|
|
758 n--;
|
|
|
759 }
|
|
|
760 }
|
|
|
761
|
|
|
762
|
|
42
|
763 ngx_int_t
|
|
|
764 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
765 {
|
|
|
766 u_char c1, c2;
|
|
|
767
|
|
|
768 if (n == 0) {
|
|
|
769 return 0;
|
|
|
770 }
|
|
|
771
|
|
|
772 n--;
|
|
|
773
|
|
|
774 for ( ;; ) {
|
|
|
775 c1 = s1[n];
|
|
|
776 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
777 c1 -= 'a' - 'A';
|
|
|
778 }
|
|
|
779
|
|
|
780 c2 = s2[n];
|
|
|
781 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
782 c2 -= 'a' - 'A';
|
|
|
783 }
|
|
|
784
|
|
|
785 if (c1 != c2) {
|
|
|
786 return c1 - c2;
|
|
|
787 }
|
|
|
788
|
|
|
789 if (n == 0) {
|
|
|
790 return 0;
|
|
|
791 }
|
|
|
792
|
|
|
793 n--;
|
|
|
794 }
|
|
|
795 }
|
|
|
796
|
|
|
797
|
|
42
|
798 ngx_int_t
|
|
274
|
799 ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
|
|
|
800 {
|
|
|
801 size_t n;
|
|
|
802 ngx_int_t m, z;
|
|
|
803
|
|
|
804 if (n1 <= n2) {
|
|
|
805 n = n1;
|
|
|
806 z = -1;
|
|
|
807
|
|
|
808 } else {
|
|
|
809 n = n2;
|
|
|
810 z = 1;
|
|
|
811 }
|
|
|
812
|
|
|
813 m = ngx_memcmp(s1, s2, n);
|
|
|
814
|
|
|
815 if (m || n1 == n2) {
|
|
|
816 return m;
|
|
|
817 }
|
|
|
818
|
|
|
819 return z;
|
|
|
820 }
|
|
|
821
|
|
|
822
|
|
|
823 ngx_int_t
|
|
526
|
824 ngx_dns_strcmp(u_char *s1, u_char *s2)
|
|
|
825 {
|
|
|
826 ngx_uint_t c1, c2;
|
|
|
827
|
|
|
828 for ( ;; ) {
|
|
|
829 c1 = (ngx_uint_t) *s1++;
|
|
|
830 c2 = (ngx_uint_t) *s2++;
|
|
|
831
|
|
|
832 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
833 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
834
|
|
|
835 if (c1 == c2) {
|
|
|
836
|
|
|
837 if (c1) {
|
|
|
838 continue;
|
|
|
839 }
|
|
|
840
|
|
|
841 return 0;
|
|
|
842 }
|
|
|
843
|
|
|
844 /* in ASCII '.' > '-', but we need '.' to be the lowest character */
|
|
|
845
|
|
|
846 c1 = (c1 == '.') ? ' ' : c1;
|
|
|
847 c2 = (c2 == '.') ? ' ' : c2;
|
|
|
848
|
|
|
849 return c1 - c2;
|
|
|
850 }
|
|
|
851 }
|
|
|
852
|
|
|
853
|
|
|
854 ngx_int_t
|
|
42
|
855 ngx_atoi(u_char *line, size_t n)
|
|
0
|
856 {
|
|
|
857 ngx_int_t value;
|
|
|
858
|
|
|
859 if (n == 0) {
|
|
|
860 return NGX_ERROR;
|
|
|
861 }
|
|
|
862
|
|
|
863 for (value = 0; n--; line++) {
|
|
|
864 if (*line < '0' || *line > '9') {
|
|
|
865 return NGX_ERROR;
|
|
|
866 }
|
|
|
867
|
|
|
868 value = value * 10 + (*line - '0');
|
|
|
869 }
|
|
|
870
|
|
|
871 if (value < 0) {
|
|
|
872 return NGX_ERROR;
|
|
|
873
|
|
|
874 } else {
|
|
|
875 return value;
|
|
|
876 }
|
|
|
877 }
|
|
|
878
|
|
|
879
|
|
50
|
880 ssize_t
|
|
|
881 ngx_atosz(u_char *line, size_t n)
|
|
|
882 {
|
|
|
883 ssize_t value;
|
|
|
884
|
|
|
885 if (n == 0) {
|
|
|
886 return NGX_ERROR;
|
|
|
887 }
|
|
|
888
|
|
|
889 for (value = 0; n--; line++) {
|
|
|
890 if (*line < '0' || *line > '9') {
|
|
|
891 return NGX_ERROR;
|
|
|
892 }
|
|
|
893
|
|
|
894 value = value * 10 + (*line - '0');
|
|
|
895 }
|
|
|
896
|
|
|
897 if (value < 0) {
|
|
|
898 return NGX_ERROR;
|
|
|
899
|
|
|
900 } else {
|
|
|
901 return value;
|
|
|
902 }
|
|
|
903 }
|
|
|
904
|
|
|
905
|
|
|
906 off_t
|
|
|
907 ngx_atoof(u_char *line, size_t n)
|
|
|
908 {
|
|
|
909 off_t value;
|
|
|
910
|
|
|
911 if (n == 0) {
|
|
|
912 return NGX_ERROR;
|
|
|
913 }
|
|
|
914
|
|
|
915 for (value = 0; n--; line++) {
|
|
|
916 if (*line < '0' || *line > '9') {
|
|
|
917 return NGX_ERROR;
|
|
|
918 }
|
|
|
919
|
|
|
920 value = value * 10 + (*line - '0');
|
|
|
921 }
|
|
|
922
|
|
|
923 if (value < 0) {
|
|
|
924 return NGX_ERROR;
|
|
|
925
|
|
|
926 } else {
|
|
|
927 return value;
|
|
|
928 }
|
|
|
929 }
|
|
|
930
|
|
|
931
|
|
|
932 time_t
|
|
|
933 ngx_atotm(u_char *line, size_t n)
|
|
|
934 {
|
|
|
935 time_t value;
|
|
|
936
|
|
|
937 if (n == 0) {
|
|
|
938 return NGX_ERROR;
|
|
|
939 }
|
|
|
940
|
|
|
941 for (value = 0; n--; line++) {
|
|
|
942 if (*line < '0' || *line > '9') {
|
|
|
943 return NGX_ERROR;
|
|
|
944 }
|
|
|
945
|
|
|
946 value = value * 10 + (*line - '0');
|
|
|
947 }
|
|
|
948
|
|
|
949 if (value < 0) {
|
|
|
950 return NGX_ERROR;
|
|
|
951
|
|
|
952 } else {
|
|
|
953 return value;
|
|
|
954 }
|
|
|
955 }
|
|
|
956
|
|
|
957
|
|
42
|
958 ngx_int_t
|
|
|
959 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
960 {
|
|
250
|
961 u_char c, ch;
|
|
0
|
962 ngx_int_t value;
|
|
|
963
|
|
|
964 if (n == 0) {
|
|
|
965 return NGX_ERROR;
|
|
|
966 }
|
|
|
967
|
|
|
968 for (value = 0; n--; line++) {
|
|
|
969 ch = *line;
|
|
|
970
|
|
|
971 if (ch >= '0' && ch <= '9') {
|
|
|
972 value = value * 16 + (ch - '0');
|
|
|
973 continue;
|
|
|
974 }
|
|
|
975
|
|
250
|
976 c = (u_char) (ch | 0x20);
|
|
0
|
977
|
|
250
|
978 if (c >= 'a' && c <= 'f') {
|
|
|
979 value = value * 16 + (c - 'a' + 10);
|
|
0
|
980 continue;
|
|
|
981 }
|
|
|
982
|
|
|
983 return NGX_ERROR;
|
|
|
984 }
|
|
|
985
|
|
|
986 if (value < 0) {
|
|
|
987 return NGX_ERROR;
|
|
|
988
|
|
|
989 } else {
|
|
|
990 return value;
|
|
|
991 }
|
|
|
992 }
|
|
|
993
|
|
|
994
|
|
356
|
995 u_char *
|
|
|
996 ngx_hex_dump(u_char *dst, u_char *src, size_t len)
|
|
0
|
997 {
|
|
|
998 static u_char hex[] = "0123456789abcdef";
|
|
|
999
|
|
356
|
1000 while (len--) {
|
|
|
1001 *dst++ = hex[*src >> 4];
|
|
|
1002 *dst++ = hex[*src++ & 0xf];
|
|
0
|
1003 }
|
|
|
1004
|
|
356
|
1005 return dst;
|
|
0
|
1006 }
|
|
|
1007
|
|
|
1008
|
|
42
|
1009 void
|
|
|
1010 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
1011 {
|
|
|
1012 u_char *d, *s;
|
|
|
1013 size_t len;
|
|
|
1014 static u_char basis64[] =
|
|
|
1015 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
1016
|
|
|
1017 len = src->len;
|
|
|
1018 s = src->data;
|
|
|
1019 d = dst->data;
|
|
|
1020
|
|
|
1021 while (len > 2) {
|
|
|
1022 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
1023 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
1024 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
1025 *d++ = basis64[s[2] & 0x3f];
|
|
|
1026
|
|
|
1027 s += 3;
|
|
|
1028 len -= 3;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 if (len) {
|
|
|
1032 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
1033
|
|
|
1034 if (len == 1) {
|
|
|
1035 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
1036 *d++ = '=';
|
|
|
1037
|
|
|
1038 } else {
|
|
|
1039 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
1040 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 *d++ = '=';
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 dst->len = d - dst->data;
|
|
|
1047 }
|
|
|
1048
|
|
|
1049
|
|
42
|
1050 ngx_int_t
|
|
|
1051 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
1052 {
|
|
|
1053 size_t len;
|
|
|
1054 u_char *d, *s;
|
|
254
|
1055 static u_char basis64[] = {
|
|
|
1056 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1057 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1058 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
1059 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
1060 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
1061 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
1062 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
1063 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
0
|
1064
|
|
254
|
1065 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1066 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1067 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1068 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1069 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1070 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1071 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
1072 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
|
|
|
1073 };
|
|
0
|
1074
|
|
|
1075 for (len = 0; len < src->len; len++) {
|
|
|
1076 if (src->data[len] == '=') {
|
|
|
1077 break;
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 if (basis64[src->data[len]] == 77) {
|
|
|
1081 return NGX_ERROR;
|
|
|
1082 }
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 if (len % 4 == 1) {
|
|
|
1086 return NGX_ERROR;
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 s = src->data;
|
|
|
1090 d = dst->data;
|
|
|
1091
|
|
|
1092 while (len > 3) {
|
|
|
1093 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
1094 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
1095 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
1096
|
|
|
1097 s += 4;
|
|
|
1098 len -= 4;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 if (len > 1) {
|
|
|
1102 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 if (len > 2) {
|
|
|
1106 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 dst->len = d - dst->data;
|
|
|
1110
|
|
|
1111 return NGX_OK;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114
|
|
206
|
1115 /*
|
|
390
|
1116 * ngx_utf8_decode() decodes two and more bytes UTF sequences only
|
|
206
|
1117 * the return values:
|
|
|
1118 * 0x80 - 0x10ffff valid character
|
|
390
|
1119 * 0x110000 - 0xfffffffd invalid sequence
|
|
206
|
1120 * 0xfffffffe incomplete sequence
|
|
|
1121 * 0xffffffff error
|
|
|
1122 */
|
|
|
1123
|
|
|
1124 uint32_t
|
|
390
|
1125 ngx_utf8_decode(u_char **p, size_t n)
|
|
206
|
1126 {
|
|
|
1127 size_t len;
|
|
|
1128 uint32_t u, i, valid;
|
|
|
1129
|
|
|
1130 u = **p;
|
|
|
1131
|
|
|
1132 if (u > 0xf0) {
|
|
|
1133
|
|
|
1134 u &= 0x07;
|
|
|
1135 valid = 0xffff;
|
|
|
1136 len = 3;
|
|
|
1137
|
|
|
1138 } else if (u > 0xe0) {
|
|
|
1139
|
|
|
1140 u &= 0x0f;
|
|
|
1141 valid = 0x7ff;
|
|
|
1142 len = 2;
|
|
|
1143
|
|
|
1144 } else if (u > 0xc0) {
|
|
|
1145
|
|
|
1146 u &= 0x1f;
|
|
|
1147 valid = 0x7f;
|
|
|
1148 len = 1;
|
|
|
1149
|
|
|
1150 } else {
|
|
|
1151 (*p)++;
|
|
|
1152 return 0xffffffff;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 if (n - 1 < len) {
|
|
|
1156 return 0xfffffffe;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 (*p)++;
|
|
|
1160
|
|
|
1161 while (len) {
|
|
|
1162 i = *(*p)++;
|
|
|
1163
|
|
|
1164 if (i < 0x80) {
|
|
|
1165 return 0xffffffff;
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 u = (u << 6) | (i & 0x3f);
|
|
|
1169
|
|
|
1170 len--;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 if (u > valid) {
|
|
|
1174 return u;
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 return 0xffffffff;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180
|
|
72
|
1181 size_t
|
|
390
|
1182 ngx_utf8_length(u_char *p, size_t n)
|
|
72
|
1183 {
|
|
390
|
1184 u_char c, *last;
|
|
|
1185 size_t len;
|
|
72
|
1186
|
|
390
|
1187 last = p + n;
|
|
72
|
1188
|
|
390
|
1189 for (len = 0; p < last; len++) {
|
|
|
1190
|
|
|
1191 c = *p;
|
|
72
|
1192
|
|
|
1193 if (c < 0x80) {
|
|
390
|
1194 p++;
|
|
72
|
1195 continue;
|
|
|
1196 }
|
|
|
1197
|
|
390
|
1198 if (ngx_utf8_decode(&p, n) > 0x10ffff) {
|
|
|
1199 /* invalid UTF-8 */
|
|
|
1200 return n;
|
|
72
|
1201 }
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 return len;
|
|
|
1205 }
|
|
|
1206
|
|
|
1207
|
|
76
|
1208 u_char *
|
|
390
|
1209 ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len)
|
|
76
|
1210 {
|
|
390
|
1211 u_char c, *next;
|
|
76
|
1212
|
|
|
1213 if (n == 0) {
|
|
|
1214 return dst;
|
|
|
1215 }
|
|
|
1216
|
|
390
|
1217 while (--n) {
|
|
76
|
1218
|
|
|
1219 c = *src;
|
|
|
1220 *dst = c;
|
|
|
1221
|
|
|
1222 if (c < 0x80) {
|
|
390
|
1223
|
|
|
1224 if (c != '\0') {
|
|
|
1225 dst++;
|
|
|
1226 src++;
|
|
|
1227 len--;
|
|
|
1228
|
|
76
|
1229 continue;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 return dst;
|
|
|
1233 }
|
|
|
1234
|
|
390
|
1235 next = src;
|
|
76
|
1236
|
|
390
|
1237 if (ngx_utf8_decode(&next, len) > 0x10ffff) {
|
|
|
1238 /* invalid UTF-8 */
|
|
|
1239 break;
|
|
76
|
1240 }
|
|
|
1241
|
|
390
|
1242 len--;
|
|
|
1243
|
|
|
1244 while (src < next) {
|
|
|
1245 *++dst = *++src;
|
|
|
1246 len--;
|
|
|
1247 }
|
|
76
|
1248 }
|
|
|
1249
|
|
|
1250 *dst = '\0';
|
|
|
1251
|
|
|
1252 return dst;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255
|
|
42
|
1256 uintptr_t
|
|
|
1257 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
1258 {
|
|
540
|
1259 ngx_uint_t n;
|
|
254
|
1260 uint32_t *escape;
|
|
|
1261 static u_char hex[] = "0123456789abcdef";
|
|
10
|
1262
|
|
254
|
1263 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
1264
|
|
254
|
1265 static uint32_t uri[] = {
|
|
|
1266 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
1267
|
|
254
|
1268 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1269 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
|
1270
|
|
|
1271 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1272 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
2
|
1273
|
|
254
|
1274 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1275 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
1276
|
|
254
|
1277 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1278 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1279 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1280 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1281 };
|
|
2
|
1282
|
|
254
|
1283 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
1284
|
|
254
|
1285 static uint32_t args[] = {
|
|
|
1286 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1287
|
|
|
1288 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1289 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
1290
|
|
254
|
1291 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1292 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1293
|
|
254
|
1294 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1295 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1296
|
|
254
|
1297 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1298 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1299 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1300 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1301 };
|
|
34
|
1302
|
|
328
|
1303 /* " ", "#", """, "%", "'", %00-%1F, %7F-%FF */
|
|
34
|
1304
|
|
254
|
1305 static uint32_t html[] = {
|
|
|
1306 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
10
|
1307
|
|
254
|
1308 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
320
|
1309 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
254
|
1310
|
|
|
1311 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1312 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1313
|
|
254
|
1314 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1315 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1316
|
|
254
|
1317 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1318 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1319 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1320 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1321 };
|
|
10
|
1322
|
|
328
|
1323 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
10
|
1324
|
|
320
|
1325 static uint32_t refresh[] = {
|
|
|
1326 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1327
|
|
|
1328 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
346
|
1329 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */
|
|
320
|
1330
|
|
|
1331 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1332 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1333
|
|
|
1334 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1335 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1336
|
|
|
1337 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1338 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1339 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1340 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1341 };
|
|
|
1342
|
|
328
|
1343 /* " ", "%", %00-%1F */
|
|
322
|
1344
|
|
|
1345 static uint32_t memcached[] = {
|
|
|
1346 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1347
|
|
|
1348 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
328
|
1349 0x00000021, /* 0000 0000 0000 0000 0000 0000 0010 0001 */
|
|
322
|
1350
|
|
|
1351 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1352 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1353
|
|
|
1354 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1355 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1356
|
|
|
1357 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1358 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1359 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1360 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1361 };
|
|
|
1362
|
|
328
|
1363 /* mail_auth is the same as memcached */
|
|
|
1364
|
|
|
1365 static uint32_t *map[] =
|
|
|
1366 { uri, args, html, refresh, memcached, memcached };
|
|
320
|
1367
|
|
|
1368
|
|
|
1369 escape = map[type];
|
|
10
|
1370
|
|
2
|
1371 if (dst == NULL) {
|
|
|
1372
|
|
|
1373 /* find the number of the characters to be escaped */
|
|
0
|
1374
|
|
526
|
1375 n = 0;
|
|
2
|
1376
|
|
540
|
1377 while (size) {
|
|
2
|
1378 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1379 n++;
|
|
|
1380 }
|
|
|
1381 src++;
|
|
540
|
1382 size--;
|
|
2
|
1383 }
|
|
|
1384
|
|
34
|
1385 return (uintptr_t) n;
|
|
0
|
1386 }
|
|
|
1387
|
|
540
|
1388 while (size) {
|
|
2
|
1389 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1390 *dst++ = '%';
|
|
|
1391 *dst++ = hex[*src >> 4];
|
|
|
1392 *dst++ = hex[*src & 0xf];
|
|
|
1393 src++;
|
|
0
|
1394
|
|
2
|
1395 } else {
|
|
|
1396 *dst++ = *src++;
|
|
|
1397 }
|
|
540
|
1398 size--;
|
|
0
|
1399 }
|
|
|
1400
|
|
34
|
1401 return (uintptr_t) dst;
|
|
0
|
1402 }
|
|
126
|
1403
|
|
|
1404
|
|
|
1405 void
|
|
150
|
1406 ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type)
|
|
126
|
1407 {
|
|
|
1408 u_char *d, *s, ch, c, decoded;
|
|
|
1409 enum {
|
|
|
1410 sw_usual = 0,
|
|
|
1411 sw_quoted,
|
|
|
1412 sw_quoted_second
|
|
|
1413 } state;
|
|
|
1414
|
|
|
1415 d = *dst;
|
|
|
1416 s = *src;
|
|
|
1417
|
|
|
1418 state = 0;
|
|
|
1419 decoded = 0;
|
|
|
1420
|
|
|
1421 while (size--) {
|
|
|
1422
|
|
|
1423 ch = *s++;
|
|
|
1424
|
|
|
1425 switch (state) {
|
|
|
1426 case sw_usual:
|
|
342
|
1427 if (ch == '?'
|
|
|
1428 && (type & (NGX_UNESCAPE_URI|NGX_UNESCAPE_REDIRECT)))
|
|
|
1429 {
|
|
126
|
1430 *d++ = ch;
|
|
|
1431 goto done;
|
|
|
1432 }
|
|
|
1433
|
|
|
1434 if (ch == '%') {
|
|
|
1435 state = sw_quoted;
|
|
|
1436 break;
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 *d++ = ch;
|
|
|
1440 break;
|
|
|
1441
|
|
|
1442 case sw_quoted:
|
|
|
1443
|
|
|
1444 if (ch >= '0' && ch <= '9') {
|
|
|
1445 decoded = (u_char) (ch - '0');
|
|
|
1446 state = sw_quoted_second;
|
|
|
1447 break;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 c = (u_char) (ch | 0x20);
|
|
|
1451 if (c >= 'a' && c <= 'f') {
|
|
|
1452 decoded = (u_char) (c - 'a' + 10);
|
|
|
1453 state = sw_quoted_second;
|
|
|
1454 break;
|
|
|
1455 }
|
|
|
1456
|
|
138
|
1457 /* the invalid quoted character */
|
|
126
|
1458
|
|
138
|
1459 state = sw_usual;
|
|
|
1460
|
|
|
1461 *d++ = ch;
|
|
126
|
1462
|
|
|
1463 break;
|
|
|
1464
|
|
|
1465 case sw_quoted_second:
|
|
|
1466
|
|
138
|
1467 state = sw_usual;
|
|
|
1468
|
|
126
|
1469 if (ch >= '0' && ch <= '9') {
|
|
|
1470 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
1471
|
|
342
|
1472 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1473 if (ch > '%' && ch < 0x7f) {
|
|
|
1474 *d++ = ch;
|
|
|
1475 break;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
|
1479
|
|
126
|
1480 break;
|
|
|
1481 }
|
|
|
1482
|
|
150
|
1483 *d++ = ch;
|
|
126
|
1484
|
|
|
1485 break;
|
|
|
1486 }
|
|
|
1487
|
|
|
1488 c = (u_char) (ch | 0x20);
|
|
|
1489 if (c >= 'a' && c <= 'f') {
|
|
|
1490 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
1491
|
|
342
|
1492 if (type & NGX_UNESCAPE_URI) {
|
|
|
1493 if (ch == '?') {
|
|
|
1494 *d++ = ch;
|
|
|
1495 goto done;
|
|
|
1496 }
|
|
|
1497
|
|
|
1498 *d++ = ch;
|
|
|
1499 break;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1503 if (ch == '?') {
|
|
|
1504 *d++ = ch;
|
|
|
1505 goto done;
|
|
|
1506 }
|
|
126
|
1507
|
|
150
|
1508 if (ch > '%' && ch < 0x7f) {
|
|
|
1509 *d++ = ch;
|
|
|
1510 break;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
126
|
1514 break;
|
|
|
1515 }
|
|
|
1516
|
|
150
|
1517 *d++ = ch;
|
|
126
|
1518
|
|
|
1519 break;
|
|
|
1520 }
|
|
|
1521
|
|
138
|
1522 /* the invalid quoted character */
|
|
126
|
1523
|
|
|
1524 break;
|
|
|
1525 }
|
|
|
1526 }
|
|
|
1527
|
|
|
1528 done:
|
|
|
1529
|
|
|
1530 *dst = d;
|
|
|
1531 *src = s;
|
|
|
1532 }
|
|
132
|
1533
|
|
|
1534
|
|
340
|
1535 uintptr_t
|
|
|
1536 ngx_escape_html(u_char *dst, u_char *src, size_t size)
|
|
|
1537 {
|
|
|
1538 u_char ch;
|
|
540
|
1539 ngx_uint_t len;
|
|
340
|
1540
|
|
|
1541 if (dst == NULL) {
|
|
|
1542
|
|
|
1543 len = 0;
|
|
|
1544
|
|
540
|
1545 while (size) {
|
|
340
|
1546 switch (*src++) {
|
|
|
1547
|
|
|
1548 case '<':
|
|
|
1549 len += sizeof("<") - 2;
|
|
|
1550 break;
|
|
|
1551
|
|
|
1552 case '>':
|
|
|
1553 len += sizeof(">") - 2;
|
|
|
1554 break;
|
|
|
1555
|
|
|
1556 case '&':
|
|
|
1557 len += sizeof("&") - 2;
|
|
|
1558 break;
|
|
|
1559
|
|
|
1560 default:
|
|
|
1561 break;
|
|
|
1562 }
|
|
540
|
1563 size--;
|
|
340
|
1564 }
|
|
|
1565
|
|
|
1566 return (uintptr_t) len;
|
|
|
1567 }
|
|
|
1568
|
|
540
|
1569 while (size) {
|
|
340
|
1570 ch = *src++;
|
|
|
1571
|
|
|
1572 switch (ch) {
|
|
|
1573
|
|
|
1574 case '<':
|
|
|
1575 *dst++ = '&'; *dst++ = 'l'; *dst++ = 't'; *dst++ = ';';
|
|
|
1576 break;
|
|
|
1577
|
|
|
1578 case '>':
|
|
|
1579 *dst++ = '&'; *dst++ = 'g'; *dst++ = 't'; *dst++ = ';';
|
|
|
1580 break;
|
|
|
1581
|
|
|
1582 case '&':
|
|
|
1583 *dst++ = '&'; *dst++ = 'a'; *dst++ = 'm'; *dst++ = 'p';
|
|
|
1584 *dst++ = ';';
|
|
|
1585 break;
|
|
|
1586
|
|
|
1587 default:
|
|
|
1588 *dst++ = ch;
|
|
|
1589 break;
|
|
|
1590 }
|
|
540
|
1591 size--;
|
|
340
|
1592 }
|
|
|
1593
|
|
|
1594 return (uintptr_t) dst;
|
|
|
1595 }
|
|
|
1596
|
|
|
1597
|
|
302
|
1598 /* ngx_sort() is implemented as insertion sort because we need stable sort */
|
|
|
1599
|
|
|
1600 void
|
|
|
1601 ngx_sort(void *base, size_t n, size_t size,
|
|
372
|
1602 ngx_int_t (*cmp)(const void *, const void *))
|
|
302
|
1603 {
|
|
372
|
1604 u_char *p1, *p2, *p;
|
|
|
1605
|
|
|
1606 p = ngx_alloc(size, ngx_cycle->log);
|
|
|
1607 if (p == NULL) {
|
|
|
1608 return;
|
|
|
1609 }
|
|
302
|
1610
|
|
|
1611 for (p1 = (u_char *) base + size;
|
|
|
1612 p1 < (u_char *) base + n * size;
|
|
|
1613 p1 += size)
|
|
|
1614 {
|
|
372
|
1615 ngx_memcpy(p, p1, size);
|
|
302
|
1616
|
|
|
1617 for (p2 = p1;
|
|
372
|
1618 p2 > (u_char *) base && cmp(p2 - size, p) > 0;
|
|
302
|
1619 p2 -= size)
|
|
|
1620 {
|
|
|
1621 ngx_memcpy(p2, p2 - size, size);
|
|
|
1622 }
|
|
|
1623
|
|
372
|
1624 ngx_memcpy(p2, p, size);
|
|
302
|
1625 }
|
|
372
|
1626
|
|
|
1627 ngx_free(p);
|
|
302
|
1628 }
|
|
|
1629
|
|
|
1630
|
|
132
|
1631 #if (NGX_MEMCPY_LIMIT)
|
|
|
1632
|
|
|
1633 void *
|
|
|
1634 ngx_memcpy(void *dst, void *src, size_t n)
|
|
|
1635 {
|
|
|
1636 if (n > NGX_MEMCPY_LIMIT) {
|
|
|
1637 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n);
|
|
|
1638 ngx_debug_point();
|
|
|
1639 }
|
|
|
1640
|
|
|
1641 return memcpy(dst, src, n);
|
|
|
1642 }
|
|
|
1643
|
|
|
1644 #endif
|
