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