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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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66
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33 for ( /* void */ ; --n; dst++, src++) {
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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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39 }
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40
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41 *dst = '\0';
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42
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43 return dst;
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44 }
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45
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46
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42
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47 u_char *
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48 ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src)
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34
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49 {
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50 u_char *dst;
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51
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382
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52 dst = ngx_pnalloc(pool, src->len);
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50
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53 if (dst == NULL) {
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34
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54 return NULL;
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55 }
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56
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57 ngx_memcpy(dst, src->data, src->len);
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58
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59 return dst;
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60 }
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61
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62
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4
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63 /*
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64 * supported formats:
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22
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65 * %[0][width][x][X]O off_t
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10
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66 * %[0][width]T time_t
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67 * %[0][width][u][x|X]z ssize_t/size_t
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68 * %[0][width][u][x|X]d int/u_int
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69 * %[0][width][u][x|X]l long
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70 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
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71 * %[0][width][u][x|X]D int32_t/uint32_t
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72 * %[0][width][u][x|X]L int64_t/uint64_t
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44
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73 * %[0][width|m][u][x|X]A ngx_atomic_int_t/ngx_atomic_uint_t
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416
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74 * %[0][width][.width]f float
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10
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75 * %P ngx_pid_t
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106
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76 * %M ngx_msec_t
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10
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77 * %r rlim_t
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328
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78 * %p void *
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79 * %V ngx_str_t *
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80 * %v ngx_variable_value_t *
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10
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81 * %s null-terminated string
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358
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82 * %*s length and string
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10
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83 * %Z '\0'
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74
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84 * %N '\n'
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10
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85 * %c char
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86 * %% %
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4
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87 *
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10
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88 * reserved:
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89 * %t ptrdiff_t
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90 * %S null-teminated wchar string
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91 * %C wchar
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4
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92 */
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93
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10
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94
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52
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95 u_char * ngx_cdecl
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42
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96 ngx_sprintf(u_char *buf, const char *fmt, ...)
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10
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97 {
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98 u_char *p;
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99 va_list args;
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100
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101 va_start(args, fmt);
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102 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
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103 va_end(args);
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104
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105 return p;
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106 }
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107
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108
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52
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109 u_char * ngx_cdecl
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42
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110 ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
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4
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111 {
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10
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112 u_char *p;
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113 va_list args;
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114
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115 va_start(args, fmt);
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116 p = ngx_vsnprintf(buf, max, fmt, args);
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117 va_end(args);
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118
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119 return p;
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120 }
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121
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4
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122
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42
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123 u_char *
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124 ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
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10
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125 {
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416
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126 u_char *p, zero, *last;
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320
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127 int d;
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416
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128 float f, scale;
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358
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129 size_t len, slen;
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320
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130 int64_t i64;
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131 uint64_t ui64;
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132 ngx_msec_t ms;
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416
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133 ngx_uint_t width, sign, hex, max_width, frac_width, i;
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328
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134 ngx_str_t *v;
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135 ngx_variable_value_t *vv;
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4
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136
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10
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137 if (max == 0) {
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138 return buf;
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139 }
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140
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141 last = buf + max;
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142
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143 while (*fmt && buf < last) {
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144
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145 /*
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146 * "buf < last" means that we could copy at least one character:
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147 * the plain character, "%%", "%c", and minus without the checking
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148 */
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149
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4
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150 if (*fmt == '%') {
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151
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10
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152 i64 = 0;
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153 ui64 = 0;
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154
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155 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
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4
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156 width = 0;
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157 sign = 1;
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416
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158 hex = 0;
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42
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159 max_width = 0;
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416
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160 frac_width = 0;
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364
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161 slen = (size_t) -1;
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4
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162
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163 while (*fmt >= '0' && *fmt <= '9') {
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164 width = width * 10 + *fmt++ - '0';
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165 }
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166
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167
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168 for ( ;; ) {
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169 switch (*fmt) {
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170
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171 case 'u':
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172 sign = 0;
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173 fmt++;
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174 continue;
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175
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16
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176 case 'm':
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42
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177 max_width = 1;
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16
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178 fmt++;
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179 continue;
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180
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10
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181 case 'X':
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416
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182 hex = 2;
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10
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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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4
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187 case 'x':
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416
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188 hex = 1;
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10
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189 sign = 0;
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4
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190 fmt++;
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191 continue;
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192
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416
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193 case '.':
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194 fmt++;
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195
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196 while (*fmt >= '0' && *fmt <= '9') {
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197 frac_width = frac_width * 10 + *fmt++ - '0';
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198 }
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199
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200 break;
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201
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358
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202 case '*':
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364
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203 slen = va_arg(args, size_t);
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358
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204 fmt++;
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205 continue;
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206
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4
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207 default:
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208 break;
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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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213
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214
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215 switch (*fmt) {
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216
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10
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217 case 'V':
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328
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218 v = va_arg(args, ngx_str_t *);
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4
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219
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320
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220 len = v->len;
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122
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221 len = (buf + len < last) ? len : (size_t) (last - buf);
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222
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320
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223 buf = ngx_cpymem(buf, v->data, len);
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10
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224 fmt++;
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4
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225
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10
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226 continue;
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4
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227
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328
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228 case 'v':
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229 vv = va_arg(args, ngx_variable_value_t *);
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230
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231 len = vv->len;
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232 len = (buf + len < last) ? len : (size_t) (last - buf);
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233
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234 buf = ngx_cpymem(buf, vv->data, len);
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235 fmt++;
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236
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237 continue;
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238
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4
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239 case 's':
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10
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240 p = va_arg(args, u_char *);
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4
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241
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364
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242 if (slen == (size_t) -1) {
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358
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243 while (*p && buf < last) {
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244 *buf++ = *p++;
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245 }
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246
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247 } else {
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364
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248 len = (buf + slen < last) ? slen : (size_t) (last - buf);
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249
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250 buf = ngx_cpymem(buf, p, len);
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4
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251 }
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358
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252
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4
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253 fmt++;
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254
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255 continue;
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256
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10
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257 case 'O':
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258 i64 = (int64_t) va_arg(args, off_t);
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259 sign = 1;
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260 break;
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261
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262 case 'P':
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263 i64 = (int64_t) va_arg(args, ngx_pid_t);
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264 sign = 1;
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265 break;
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266
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267 case 'T':
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268 i64 = (int64_t) va_arg(args, time_t);
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269 sign = 1;
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270 break;
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271
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106
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272 case 'M':
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110
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273 ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
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274 if ((ngx_msec_int_t) ms == -1) {
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275 sign = 1;
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276 i64 = -1;
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277 } else {
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278 sign = 0;
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279 ui64 = (uint64_t) ms;
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280 }
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106
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281 break;
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282
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10
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283 case 'z':
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284 if (sign) {
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285 i64 = (int64_t) va_arg(args, ssize_t);
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286 } else {
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287 ui64 = (uint64_t) va_arg(args, size_t);
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288 }
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289 break;
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290
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291 case 'i':
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292 if (sign) {
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293 i64 = (int64_t) va_arg(args, ngx_int_t);
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294 } else {
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295 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
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296 }
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42
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297
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298 if (max_width) {
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299 width = NGX_INT_T_LEN;
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300 }
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301
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10
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302 break;
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303
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304 case 'd':
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305 if (sign) {
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306 i64 = (int64_t) va_arg(args, int);
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307 } else {
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308 ui64 = (uint64_t) va_arg(args, u_int);
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309 }
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310 break;
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311
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312 case 'l':
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313 if (sign) {
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314 i64 = (int64_t) va_arg(args, long);
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315 } else {
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316 ui64 = (uint64_t) va_arg(args, u_long);
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317 }
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318 break;
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319
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320 case 'D':
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321 if (sign) {
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322 i64 = (int64_t) va_arg(args, int32_t);
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323 } else {
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324 ui64 = (uint64_t) va_arg(args, uint32_t);
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325 }
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326 break;
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327
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328 case 'L':
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329 if (sign) {
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330 i64 = va_arg(args, int64_t);
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331 } else {
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332 ui64 = va_arg(args, uint64_t);
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333 }
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334 break;
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335
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42
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336 case 'A':
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337 if (sign) {
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338 i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
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339 } else {
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44
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340 ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
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42
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341 }
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342
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343 if (max_width) {
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344 width = NGX_ATOMIC_T_LEN;
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345 }
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346
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347 break;
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348
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416
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349 case 'f':
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350 f = (float) va_arg(args, double);
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351
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352 if (f < 0) {
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353 *buf++ = '-';
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354 f = -f;
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355 }
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356
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357 ui64 = (int64_t) f;
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358
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359 buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width);
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360
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361 if (frac_width) {
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362
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363 if (buf < last) {
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364 *buf++ = '.';
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365 }
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366
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367 scale = 1.0;
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368
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369 for (i = 0; i < frac_width; i++) {
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370 scale *= 10.0;
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371 }
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372
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373 /*
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374 * (int64_t) cast is required for msvc6:
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375 * it can not convert uint64_t to double
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376 */
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377 ui64 = (uint64_t) ((f - (int64_t) ui64) * scale);
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378
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379 buf = ngx_sprintf_num(buf, last, ui64, '0', 0, frac_width);
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380 }
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381
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382 fmt++;
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383
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384 continue;
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385
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10
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386 #if !(NGX_WIN32)
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387 case 'r':
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388 i64 = (int64_t) va_arg(args, rlim_t);
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389 sign = 1;
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390 break;
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391 #endif
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392
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393 case 'p':
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394 ui64 = (uintptr_t) va_arg(args, void *);
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416
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395 hex = 2;
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10
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396 sign = 0;
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397 zero = '0';
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162
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398 width = NGX_PTR_SIZE * 2;
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10
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399 break;
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400
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6
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401 case 'c':
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10
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402 d = va_arg(args, int);
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6
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403 *buf++ = (u_char) (d & 0xff);
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404 fmt++;
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405
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406 continue;
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407
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10
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408 case 'Z':
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409 *buf++ = '\0';
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410 fmt++;
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411
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412 continue;
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413
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74
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414 case 'N':
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415 #if (NGX_WIN32)
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416 *buf++ = CR;
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417 #endif
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418 *buf++ = LF;
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419 fmt++;
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420
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421 continue;
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422
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4
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423 case '%':
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424 *buf++ = '%';
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425 fmt++;
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426
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427 continue;
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428
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429 default:
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430 *buf++ = *fmt++;
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431
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432 continue;
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433 }
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434
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10
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435 if (sign) {
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436 if (i64 < 0) {
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437 *buf++ = '-';
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438 ui64 = (uint64_t) -i64;
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439
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|
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440 } else {
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441 ui64 = (uint64_t) i64;
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442 }
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|
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443 }
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444
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416
|
445 buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width);
|
|
4
|
446
|
|
|
447 fmt++;
|
|
|
448
|
|
|
449 } else {
|
|
|
450 *buf++ = *fmt++;
|
|
|
451 }
|
|
|
452 }
|
|
|
453
|
|
|
454 return buf;
|
|
|
455 }
|
|
|
456
|
|
|
457
|
|
416
|
458 static u_char *
|
|
|
459 ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64, u_char zero,
|
|
|
460 ngx_uint_t hexadecimal, ngx_uint_t width)
|
|
|
461 {
|
|
|
462 u_char *p, temp[NGX_INT64_LEN + 1];
|
|
|
463 /*
|
|
|
464 * we need temp[NGX_INT64_LEN] only,
|
|
|
465 * but icc issues the warning
|
|
|
466 */
|
|
|
467 size_t len;
|
|
|
468 uint32_t ui32;
|
|
|
469 static u_char hex[] = "0123456789abcdef";
|
|
|
470 static u_char HEX[] = "0123456789ABCDEF";
|
|
|
471
|
|
|
472 p = temp + NGX_INT64_LEN;
|
|
|
473
|
|
|
474 if (hexadecimal == 0) {
|
|
|
475
|
|
|
476 if (ui64 <= NGX_MAX_UINT32_VALUE) {
|
|
|
477
|
|
|
478 /*
|
|
|
479 * To divide 64-bit numbers and to find remainders
|
|
|
480 * on the x86 platform gcc and icc call the libc functions
|
|
|
481 * [u]divdi3() and [u]moddi3(), they call another function
|
|
|
482 * in its turn. On FreeBSD it is the qdivrem() function,
|
|
|
483 * its source code is about 170 lines of the code.
|
|
|
484 * The glibc counterpart is about 150 lines of the code.
|
|
|
485 *
|
|
|
486 * For 32-bit numbers and some divisors gcc and icc use
|
|
|
487 * a inlined multiplication and shifts. For example,
|
|
|
488 * unsigned "i32 / 10" is compiled to
|
|
|
489 *
|
|
|
490 * (i32 * 0xCCCCCCCD) >> 35
|
|
|
491 */
|
|
|
492
|
|
|
493 ui32 = (uint32_t) ui64;
|
|
|
494
|
|
|
495 do {
|
|
|
496 *--p = (u_char) (ui32 % 10 + '0');
|
|
|
497 } while (ui32 /= 10);
|
|
|
498
|
|
|
499 } else {
|
|
|
500 do {
|
|
|
501 *--p = (u_char) (ui64 % 10 + '0');
|
|
|
502 } while (ui64 /= 10);
|
|
|
503 }
|
|
|
504
|
|
|
505 } else if (hexadecimal == 1) {
|
|
|
506
|
|
|
507 do {
|
|
|
508
|
|
|
509 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
|
510 *--p = hex[(uint32_t) (ui64 & 0xf)];
|
|
|
511
|
|
|
512 } while (ui64 >>= 4);
|
|
|
513
|
|
|
514 } else { /* hexadecimal == 2 */
|
|
|
515
|
|
|
516 do {
|
|
|
517
|
|
|
518 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
|
519 *--p = HEX[(uint32_t) (ui64 & 0xf)];
|
|
|
520
|
|
|
521 } while (ui64 >>= 4);
|
|
|
522 }
|
|
|
523
|
|
|
524 /* zero or space padding */
|
|
|
525
|
|
|
526 len = (temp + NGX_INT64_LEN) - p;
|
|
|
527
|
|
|
528 while (len++ < width && buf < last) {
|
|
|
529 *buf++ = zero;
|
|
|
530 }
|
|
|
531
|
|
|
532 /* number safe copy */
|
|
|
533
|
|
|
534 len = (temp + NGX_INT64_LEN) - p;
|
|
|
535
|
|
|
536 if (buf + len > last) {
|
|
|
537 len = last - buf;
|
|
|
538 }
|
|
|
539
|
|
|
540 return ngx_cpymem(buf, p, len);
|
|
|
541 }
|
|
|
542
|
|
|
543
|
|
286
|
544 /*
|
|
340
|
545 * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
|
|
286
|
546 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
|
|
|
547 * to avoid libc locale overhead. Besides, we use the ngx_uint_t's
|
|
|
548 * instead of the u_char's, because they are slightly faster.
|
|
|
549 */
|
|
|
550
|
|
|
551 ngx_int_t
|
|
|
552 ngx_strcasecmp(u_char *s1, u_char *s2)
|
|
|
553 {
|
|
|
554 ngx_uint_t c1, c2;
|
|
|
555
|
|
|
556 for ( ;; ) {
|
|
|
557 c1 = (ngx_uint_t) *s1++;
|
|
|
558 c2 = (ngx_uint_t) *s2++;
|
|
|
559
|
|
|
560 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
561 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
562
|
|
|
563 if (c1 == c2) {
|
|
|
564
|
|
|
565 if (c1) {
|
|
|
566 continue;
|
|
|
567 }
|
|
|
568
|
|
|
569 return 0;
|
|
|
570 }
|
|
|
571
|
|
|
572 return c1 - c2;
|
|
|
573 }
|
|
|
574 }
|
|
|
575
|
|
|
576
|
|
|
577 ngx_int_t
|
|
|
578 ngx_strncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
|
579 {
|
|
|
580 ngx_uint_t c1, c2;
|
|
|
581
|
|
|
582 while (n) {
|
|
|
583 c1 = (ngx_uint_t) *s1++;
|
|
|
584 c2 = (ngx_uint_t) *s2++;
|
|
|
585
|
|
|
586 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
587 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
588
|
|
|
589 if (c1 == c2) {
|
|
|
590
|
|
|
591 if (c1) {
|
|
|
592 n--;
|
|
|
593 continue;
|
|
|
594 }
|
|
|
595
|
|
|
596 return 0;
|
|
|
597 }
|
|
|
598
|
|
|
599 return c1 - c2;
|
|
|
600 }
|
|
|
601
|
|
|
602 return 0;
|
|
|
603 }
|
|
|
604
|
|
|
605
|
|
340
|
606 u_char *
|
|
|
607 ngx_strnstr(u_char *s1, char *s2, size_t len)
|
|
|
608 {
|
|
|
609 u_char c1, c2;
|
|
|
610 size_t n;
|
|
|
611
|
|
|
612 c2 = *(u_char *) s2++;
|
|
|
613
|
|
|
614 n = ngx_strlen(s2);
|
|
|
615
|
|
|
616 do {
|
|
|
617 do {
|
|
|
618 if (len-- == 0) {
|
|
|
619 return NULL;
|
|
|
620 }
|
|
|
621
|
|
|
622 c1 = *s1++;
|
|
|
623
|
|
|
624 if (c1 == 0) {
|
|
|
625 return NULL;
|
|
|
626 }
|
|
|
627
|
|
|
628 } while (c1 != c2);
|
|
|
629
|
|
|
630 if (n > len) {
|
|
|
631 return NULL;
|
|
|
632 }
|
|
|
633
|
|
|
634 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
635
|
|
|
636 return --s1;
|
|
|
637 }
|
|
|
638
|
|
|
639
|
|
|
640 /*
|
|
|
641 * ngx_strstrn() and ngx_strcasestrn() are intended to search for static
|
|
|
642 * substring with known length in null-terminated string. The argument n
|
|
|
643 * must be length of the second substring - 1.
|
|
|
644 */
|
|
|
645
|
|
|
646 u_char *
|
|
|
647 ngx_strstrn(u_char *s1, char *s2, size_t n)
|
|
|
648 {
|
|
|
649 u_char c1, c2;
|
|
|
650
|
|
|
651 c2 = *(u_char *) s2++;
|
|
|
652
|
|
|
653 do {
|
|
|
654 do {
|
|
|
655 c1 = *s1++;
|
|
|
656
|
|
|
657 if (c1 == 0) {
|
|
|
658 return NULL;
|
|
|
659 }
|
|
|
660
|
|
|
661 } while (c1 != c2);
|
|
|
662
|
|
|
663 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
|
|
|
664
|
|
|
665 return --s1;
|
|
|
666 }
|
|
|
667
|
|
|
668
|
|
|
669 u_char *
|
|
|
670 ngx_strcasestrn(u_char *s1, char *s2, size_t n)
|
|
|
671 {
|
|
|
672 ngx_uint_t c1, c2;
|
|
|
673
|
|
|
674 c2 = (ngx_uint_t) *s2++;
|
|
|
675 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
|
|
|
676
|
|
|
677 do {
|
|
|
678 do {
|
|
|
679 c1 = (ngx_uint_t) *s1++;
|
|
|
680
|
|
|
681 if (c1 == 0) {
|
|
|
682 return NULL;
|
|
|
683 }
|
|
|
684
|
|
|
685 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
|
|
|
686
|
|
|
687 } while (c1 != c2);
|
|
|
688
|
|
|
689 } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
|
|
|
690
|
|
|
691 return --s1;
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
42
|
695 ngx_int_t
|
|
|
696 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
0
|
697 {
|
|
|
698 if (n == 0) {
|
|
|
699 return 0;
|
|
|
700 }
|
|
|
701
|
|
|
702 n--;
|
|
|
703
|
|
|
704 for ( ;; ) {
|
|
|
705 if (s1[n] != s2[n]) {
|
|
|
706 return s1[n] - s2[n];
|
|
|
707 }
|
|
|
708
|
|
|
709 if (n == 0) {
|
|
|
710 return 0;
|
|
|
711 }
|
|
|
712
|
|
|
713 n--;
|
|
|
714 }
|
|
|
715 }
|
|
|
716
|
|
|
717
|
|
42
|
718 ngx_int_t
|
|
|
719 ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
4
|
720 {
|
|
|
721 u_char c1, c2;
|
|
|
722
|
|
|
723 if (n == 0) {
|
|
|
724 return 0;
|
|
|
725 }
|
|
|
726
|
|
|
727 n--;
|
|
|
728
|
|
|
729 for ( ;; ) {
|
|
|
730 c1 = s1[n];
|
|
|
731 if (c1 >= 'a' && c1 <= 'z') {
|
|
|
732 c1 -= 'a' - 'A';
|
|
|
733 }
|
|
|
734
|
|
|
735 c2 = s2[n];
|
|
|
736 if (c2 >= 'a' && c2 <= 'z') {
|
|
|
737 c2 -= 'a' - 'A';
|
|
|
738 }
|
|
|
739
|
|
|
740 if (c1 != c2) {
|
|
|
741 return c1 - c2;
|
|
|
742 }
|
|
|
743
|
|
|
744 if (n == 0) {
|
|
|
745 return 0;
|
|
|
746 }
|
|
|
747
|
|
|
748 n--;
|
|
|
749 }
|
|
|
750 }
|
|
|
751
|
|
|
752
|
|
42
|
753 ngx_int_t
|
|
274
|
754 ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
|
|
|
755 {
|
|
|
756 size_t n;
|
|
|
757 ngx_int_t m, z;
|
|
|
758
|
|
|
759 if (n1 <= n2) {
|
|
|
760 n = n1;
|
|
|
761 z = -1;
|
|
|
762
|
|
|
763 } else {
|
|
|
764 n = n2;
|
|
|
765 z = 1;
|
|
|
766 }
|
|
|
767
|
|
|
768 m = ngx_memcmp(s1, s2, n);
|
|
|
769
|
|
|
770 if (m || n1 == n2) {
|
|
|
771 return m;
|
|
|
772 }
|
|
|
773
|
|
|
774 return z;
|
|
|
775 }
|
|
|
776
|
|
|
777
|
|
|
778 ngx_int_t
|
|
42
|
779 ngx_atoi(u_char *line, size_t n)
|
|
0
|
780 {
|
|
|
781 ngx_int_t value;
|
|
|
782
|
|
|
783 if (n == 0) {
|
|
|
784 return NGX_ERROR;
|
|
|
785 }
|
|
|
786
|
|
|
787 for (value = 0; n--; line++) {
|
|
|
788 if (*line < '0' || *line > '9') {
|
|
|
789 return NGX_ERROR;
|
|
|
790 }
|
|
|
791
|
|
|
792 value = value * 10 + (*line - '0');
|
|
|
793 }
|
|
|
794
|
|
|
795 if (value < 0) {
|
|
|
796 return NGX_ERROR;
|
|
|
797
|
|
|
798 } else {
|
|
|
799 return value;
|
|
|
800 }
|
|
|
801 }
|
|
|
802
|
|
|
803
|
|
50
|
804 ssize_t
|
|
|
805 ngx_atosz(u_char *line, size_t n)
|
|
|
806 {
|
|
|
807 ssize_t value;
|
|
|
808
|
|
|
809 if (n == 0) {
|
|
|
810 return NGX_ERROR;
|
|
|
811 }
|
|
|
812
|
|
|
813 for (value = 0; n--; line++) {
|
|
|
814 if (*line < '0' || *line > '9') {
|
|
|
815 return NGX_ERROR;
|
|
|
816 }
|
|
|
817
|
|
|
818 value = value * 10 + (*line - '0');
|
|
|
819 }
|
|
|
820
|
|
|
821 if (value < 0) {
|
|
|
822 return NGX_ERROR;
|
|
|
823
|
|
|
824 } else {
|
|
|
825 return value;
|
|
|
826 }
|
|
|
827 }
|
|
|
828
|
|
|
829
|
|
|
830 off_t
|
|
|
831 ngx_atoof(u_char *line, size_t n)
|
|
|
832 {
|
|
|
833 off_t value;
|
|
|
834
|
|
|
835 if (n == 0) {
|
|
|
836 return NGX_ERROR;
|
|
|
837 }
|
|
|
838
|
|
|
839 for (value = 0; n--; line++) {
|
|
|
840 if (*line < '0' || *line > '9') {
|
|
|
841 return NGX_ERROR;
|
|
|
842 }
|
|
|
843
|
|
|
844 value = value * 10 + (*line - '0');
|
|
|
845 }
|
|
|
846
|
|
|
847 if (value < 0) {
|
|
|
848 return NGX_ERROR;
|
|
|
849
|
|
|
850 } else {
|
|
|
851 return value;
|
|
|
852 }
|
|
|
853 }
|
|
|
854
|
|
|
855
|
|
|
856 time_t
|
|
|
857 ngx_atotm(u_char *line, size_t n)
|
|
|
858 {
|
|
|
859 time_t value;
|
|
|
860
|
|
|
861 if (n == 0) {
|
|
|
862 return NGX_ERROR;
|
|
|
863 }
|
|
|
864
|
|
|
865 for (value = 0; n--; line++) {
|
|
|
866 if (*line < '0' || *line > '9') {
|
|
|
867 return NGX_ERROR;
|
|
|
868 }
|
|
|
869
|
|
|
870 value = value * 10 + (*line - '0');
|
|
|
871 }
|
|
|
872
|
|
|
873 if (value < 0) {
|
|
|
874 return NGX_ERROR;
|
|
|
875
|
|
|
876 } else {
|
|
|
877 return value;
|
|
|
878 }
|
|
|
879 }
|
|
|
880
|
|
|
881
|
|
42
|
882 ngx_int_t
|
|
|
883 ngx_hextoi(u_char *line, size_t n)
|
|
0
|
884 {
|
|
250
|
885 u_char c, ch;
|
|
0
|
886 ngx_int_t value;
|
|
|
887
|
|
|
888 if (n == 0) {
|
|
|
889 return NGX_ERROR;
|
|
|
890 }
|
|
|
891
|
|
|
892 for (value = 0; n--; line++) {
|
|
|
893 ch = *line;
|
|
|
894
|
|
|
895 if (ch >= '0' && ch <= '9') {
|
|
|
896 value = value * 16 + (ch - '0');
|
|
|
897 continue;
|
|
|
898 }
|
|
|
899
|
|
250
|
900 c = (u_char) (ch | 0x20);
|
|
0
|
901
|
|
250
|
902 if (c >= 'a' && c <= 'f') {
|
|
|
903 value = value * 16 + (c - 'a' + 10);
|
|
0
|
904 continue;
|
|
|
905 }
|
|
|
906
|
|
|
907 return NGX_ERROR;
|
|
|
908 }
|
|
|
909
|
|
|
910 if (value < 0) {
|
|
|
911 return NGX_ERROR;
|
|
|
912
|
|
|
913 } else {
|
|
|
914 return value;
|
|
|
915 }
|
|
|
916 }
|
|
|
917
|
|
|
918
|
|
356
|
919 u_char *
|
|
|
920 ngx_hex_dump(u_char *dst, u_char *src, size_t len)
|
|
0
|
921 {
|
|
|
922 static u_char hex[] = "0123456789abcdef";
|
|
|
923
|
|
356
|
924 while (len--) {
|
|
|
925 *dst++ = hex[*src >> 4];
|
|
|
926 *dst++ = hex[*src++ & 0xf];
|
|
0
|
927 }
|
|
|
928
|
|
356
|
929 return dst;
|
|
0
|
930 }
|
|
|
931
|
|
|
932
|
|
42
|
933 void
|
|
|
934 ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
935 {
|
|
|
936 u_char *d, *s;
|
|
|
937 size_t len;
|
|
|
938 static u_char basis64[] =
|
|
|
939 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
940
|
|
|
941 len = src->len;
|
|
|
942 s = src->data;
|
|
|
943 d = dst->data;
|
|
|
944
|
|
|
945 while (len > 2) {
|
|
|
946 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
947 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
948 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
949 *d++ = basis64[s[2] & 0x3f];
|
|
|
950
|
|
|
951 s += 3;
|
|
|
952 len -= 3;
|
|
|
953 }
|
|
|
954
|
|
|
955 if (len) {
|
|
|
956 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
957
|
|
|
958 if (len == 1) {
|
|
|
959 *d++ = basis64[(s[0] & 3) << 4];
|
|
|
960 *d++ = '=';
|
|
|
961
|
|
|
962 } else {
|
|
|
963 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
964 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
|
965 }
|
|
|
966
|
|
|
967 *d++ = '=';
|
|
|
968 }
|
|
|
969
|
|
|
970 dst->len = d - dst->data;
|
|
|
971 }
|
|
|
972
|
|
|
973
|
|
42
|
974 ngx_int_t
|
|
|
975 ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
|
0
|
976 {
|
|
|
977 size_t len;
|
|
|
978 u_char *d, *s;
|
|
254
|
979 static u_char basis64[] = {
|
|
|
980 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
981 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
982 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
983 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
984 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
985 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
986 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
987 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
0
|
988
|
|
254
|
989 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
990 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
991 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
992 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
993 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
994 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
995 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
996 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
|
|
|
997 };
|
|
0
|
998
|
|
|
999 for (len = 0; len < src->len; len++) {
|
|
|
1000 if (src->data[len] == '=') {
|
|
|
1001 break;
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 if (basis64[src->data[len]] == 77) {
|
|
|
1005 return NGX_ERROR;
|
|
|
1006 }
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 if (len % 4 == 1) {
|
|
|
1010 return NGX_ERROR;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 s = src->data;
|
|
|
1014 d = dst->data;
|
|
|
1015
|
|
|
1016 while (len > 3) {
|
|
|
1017 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
1018 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
1019 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
|
1020
|
|
|
1021 s += 4;
|
|
|
1022 len -= 4;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 if (len > 1) {
|
|
|
1026 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 if (len > 2) {
|
|
|
1030 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 dst->len = d - dst->data;
|
|
|
1034
|
|
|
1035 return NGX_OK;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038
|
|
206
|
1039 /*
|
|
390
|
1040 * ngx_utf8_decode() decodes two and more bytes UTF sequences only
|
|
206
|
1041 * the return values:
|
|
|
1042 * 0x80 - 0x10ffff valid character
|
|
390
|
1043 * 0x110000 - 0xfffffffd invalid sequence
|
|
206
|
1044 * 0xfffffffe incomplete sequence
|
|
|
1045 * 0xffffffff error
|
|
|
1046 */
|
|
|
1047
|
|
|
1048 uint32_t
|
|
390
|
1049 ngx_utf8_decode(u_char **p, size_t n)
|
|
206
|
1050 {
|
|
|
1051 size_t len;
|
|
|
1052 uint32_t u, i, valid;
|
|
|
1053
|
|
|
1054 u = **p;
|
|
|
1055
|
|
|
1056 if (u > 0xf0) {
|
|
|
1057
|
|
|
1058 u &= 0x07;
|
|
|
1059 valid = 0xffff;
|
|
|
1060 len = 3;
|
|
|
1061
|
|
|
1062 } else if (u > 0xe0) {
|
|
|
1063
|
|
|
1064 u &= 0x0f;
|
|
|
1065 valid = 0x7ff;
|
|
|
1066 len = 2;
|
|
|
1067
|
|
|
1068 } else if (u > 0xc0) {
|
|
|
1069
|
|
|
1070 u &= 0x1f;
|
|
|
1071 valid = 0x7f;
|
|
|
1072 len = 1;
|
|
|
1073
|
|
|
1074 } else {
|
|
|
1075 (*p)++;
|
|
|
1076 return 0xffffffff;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 if (n - 1 < len) {
|
|
|
1080 return 0xfffffffe;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 (*p)++;
|
|
|
1084
|
|
|
1085 while (len) {
|
|
|
1086 i = *(*p)++;
|
|
|
1087
|
|
|
1088 if (i < 0x80) {
|
|
|
1089 return 0xffffffff;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 u = (u << 6) | (i & 0x3f);
|
|
|
1093
|
|
|
1094 len--;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 if (u > valid) {
|
|
|
1098 return u;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 return 0xffffffff;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104
|
|
72
|
1105 size_t
|
|
390
|
1106 ngx_utf8_length(u_char *p, size_t n)
|
|
72
|
1107 {
|
|
390
|
1108 u_char c, *last;
|
|
|
1109 size_t len;
|
|
72
|
1110
|
|
390
|
1111 last = p + n;
|
|
72
|
1112
|
|
390
|
1113 for (len = 0; p < last; len++) {
|
|
|
1114
|
|
|
1115 c = *p;
|
|
72
|
1116
|
|
|
1117 if (c < 0x80) {
|
|
390
|
1118 p++;
|
|
72
|
1119 continue;
|
|
|
1120 }
|
|
|
1121
|
|
390
|
1122 if (ngx_utf8_decode(&p, n) > 0x10ffff) {
|
|
|
1123 /* invalid UTF-8 */
|
|
|
1124 return n;
|
|
72
|
1125 }
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 return len;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131
|
|
76
|
1132 u_char *
|
|
390
|
1133 ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len)
|
|
76
|
1134 {
|
|
390
|
1135 u_char c, *next;
|
|
76
|
1136
|
|
|
1137 if (n == 0) {
|
|
|
1138 return dst;
|
|
|
1139 }
|
|
|
1140
|
|
390
|
1141 while (--n) {
|
|
76
|
1142
|
|
|
1143 c = *src;
|
|
|
1144 *dst = c;
|
|
|
1145
|
|
|
1146 if (c < 0x80) {
|
|
390
|
1147
|
|
|
1148 if (c != '\0') {
|
|
|
1149 dst++;
|
|
|
1150 src++;
|
|
|
1151 len--;
|
|
|
1152
|
|
76
|
1153 continue;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 return dst;
|
|
|
1157 }
|
|
|
1158
|
|
390
|
1159 next = src;
|
|
76
|
1160
|
|
390
|
1161 if (ngx_utf8_decode(&next, len) > 0x10ffff) {
|
|
|
1162 /* invalid UTF-8 */
|
|
|
1163 break;
|
|
76
|
1164 }
|
|
|
1165
|
|
390
|
1166 len--;
|
|
|
1167
|
|
|
1168 while (src < next) {
|
|
|
1169 *++dst = *++src;
|
|
|
1170 len--;
|
|
|
1171 }
|
|
76
|
1172 }
|
|
|
1173
|
|
|
1174 *dst = '\0';
|
|
|
1175
|
|
|
1176 return dst;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179
|
|
42
|
1180 uintptr_t
|
|
|
1181 ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
|
|
0
|
1182 {
|
|
254
|
1183 ngx_uint_t i, n;
|
|
|
1184 uint32_t *escape;
|
|
|
1185 static u_char hex[] = "0123456789abcdef";
|
|
10
|
1186
|
|
254
|
1187 /* " ", "#", "%", "?", %00-%1F, %7F-%FF */
|
|
34
|
1188
|
|
254
|
1189 static uint32_t uri[] = {
|
|
|
1190 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0
|
1191
|
|
254
|
1192 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1193 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */
|
|
|
1194
|
|
|
1195 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1196 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
2
|
1197
|
|
254
|
1198 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1199 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
0
|
1200
|
|
254
|
1201 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1202 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1203 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1204 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1205 };
|
|
2
|
1206
|
|
254
|
1207 /* " ", "#", "%", "+", "?", %00-%1F, %7F-%FF */
|
|
34
|
1208
|
|
254
|
1209 static uint32_t args[] = {
|
|
|
1210 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1211
|
|
|
1212 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
1213 0x80000829, /* 1000 0000 0000 0000 0000 1000 0010 1001 */
|
|
34
|
1214
|
|
254
|
1215 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1216 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1217
|
|
254
|
1218 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1219 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
34
|
1220
|
|
254
|
1221 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1222 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1223 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1224 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1225 };
|
|
34
|
1226
|
|
328
|
1227 /* " ", "#", """, "%", "'", %00-%1F, %7F-%FF */
|
|
34
|
1228
|
|
254
|
1229 static uint32_t html[] = {
|
|
|
1230 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
10
|
1231
|
|
254
|
1232 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
320
|
1233 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */
|
|
254
|
1234
|
|
|
1235 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1236 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1237
|
|
254
|
1238 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1239 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
10
|
1240
|
|
254
|
1241 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1242 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1243 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1244 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1245 };
|
|
10
|
1246
|
|
328
|
1247 /* " ", """, "%", "'", %00-%1F, %7F-%FF */
|
|
10
|
1248
|
|
320
|
1249 static uint32_t refresh[] = {
|
|
|
1250 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1251
|
|
|
1252 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
346
|
1253 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */
|
|
320
|
1254
|
|
|
1255 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1256 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1257
|
|
|
1258 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1259 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1260
|
|
|
1261 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1262 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1263 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1264 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1265 };
|
|
|
1266
|
|
328
|
1267 /* " ", "%", %00-%1F */
|
|
322
|
1268
|
|
|
1269 static uint32_t memcached[] = {
|
|
|
1270 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
1271
|
|
|
1272 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
328
|
1273 0x00000021, /* 0000 0000 0000 0000 0000 0000 0010 0001 */
|
|
322
|
1274
|
|
|
1275 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
1276 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1277
|
|
|
1278 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
1279 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1280
|
|
|
1281 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1282 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1283 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1284 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
1285 };
|
|
|
1286
|
|
328
|
1287 /* mail_auth is the same as memcached */
|
|
|
1288
|
|
|
1289 static uint32_t *map[] =
|
|
|
1290 { uri, args, html, refresh, memcached, memcached };
|
|
320
|
1291
|
|
|
1292
|
|
|
1293 escape = map[type];
|
|
10
|
1294
|
|
2
|
1295 if (dst == NULL) {
|
|
|
1296
|
|
|
1297 /* find the number of the characters to be escaped */
|
|
0
|
1298
|
|
2
|
1299 n = 0;
|
|
|
1300
|
|
|
1301 for (i = 0; i < size; i++) {
|
|
|
1302 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1303 n++;
|
|
|
1304 }
|
|
|
1305 src++;
|
|
|
1306 }
|
|
|
1307
|
|
34
|
1308 return (uintptr_t) n;
|
|
0
|
1309 }
|
|
|
1310
|
|
2
|
1311 for (i = 0; i < size; i++) {
|
|
|
1312 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
1313 *dst++ = '%';
|
|
|
1314 *dst++ = hex[*src >> 4];
|
|
|
1315 *dst++ = hex[*src & 0xf];
|
|
|
1316 src++;
|
|
0
|
1317
|
|
2
|
1318 } else {
|
|
|
1319 *dst++ = *src++;
|
|
|
1320 }
|
|
0
|
1321 }
|
|
|
1322
|
|
34
|
1323 return (uintptr_t) dst;
|
|
0
|
1324 }
|
|
126
|
1325
|
|
|
1326
|
|
|
1327 void
|
|
150
|
1328 ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type)
|
|
126
|
1329 {
|
|
|
1330 u_char *d, *s, ch, c, decoded;
|
|
|
1331 enum {
|
|
|
1332 sw_usual = 0,
|
|
|
1333 sw_quoted,
|
|
|
1334 sw_quoted_second
|
|
|
1335 } state;
|
|
|
1336
|
|
|
1337 d = *dst;
|
|
|
1338 s = *src;
|
|
|
1339
|
|
|
1340 state = 0;
|
|
|
1341 decoded = 0;
|
|
|
1342
|
|
|
1343 while (size--) {
|
|
|
1344
|
|
|
1345 ch = *s++;
|
|
|
1346
|
|
|
1347 switch (state) {
|
|
|
1348 case sw_usual:
|
|
342
|
1349 if (ch == '?'
|
|
|
1350 && (type & (NGX_UNESCAPE_URI|NGX_UNESCAPE_REDIRECT)))
|
|
|
1351 {
|
|
126
|
1352 *d++ = ch;
|
|
|
1353 goto done;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 if (ch == '%') {
|
|
|
1357 state = sw_quoted;
|
|
|
1358 break;
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 *d++ = ch;
|
|
|
1362 break;
|
|
|
1363
|
|
|
1364 case sw_quoted:
|
|
|
1365
|
|
|
1366 if (ch >= '0' && ch <= '9') {
|
|
|
1367 decoded = (u_char) (ch - '0');
|
|
|
1368 state = sw_quoted_second;
|
|
|
1369 break;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 c = (u_char) (ch | 0x20);
|
|
|
1373 if (c >= 'a' && c <= 'f') {
|
|
|
1374 decoded = (u_char) (c - 'a' + 10);
|
|
|
1375 state = sw_quoted_second;
|
|
|
1376 break;
|
|
|
1377 }
|
|
|
1378
|
|
138
|
1379 /* the invalid quoted character */
|
|
126
|
1380
|
|
138
|
1381 state = sw_usual;
|
|
|
1382
|
|
|
1383 *d++ = ch;
|
|
126
|
1384
|
|
|
1385 break;
|
|
|
1386
|
|
|
1387 case sw_quoted_second:
|
|
|
1388
|
|
138
|
1389 state = sw_usual;
|
|
|
1390
|
|
126
|
1391 if (ch >= '0' && ch <= '9') {
|
|
|
1392 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
1393
|
|
342
|
1394 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1395 if (ch > '%' && ch < 0x7f) {
|
|
|
1396 *d++ = ch;
|
|
|
1397 break;
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
|
1401
|
|
126
|
1402 break;
|
|
|
1403 }
|
|
|
1404
|
|
150
|
1405 *d++ = ch;
|
|
126
|
1406
|
|
|
1407 break;
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 c = (u_char) (ch | 0x20);
|
|
|
1411 if (c >= 'a' && c <= 'f') {
|
|
|
1412 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
1413
|
|
342
|
1414 if (type & NGX_UNESCAPE_URI) {
|
|
|
1415 if (ch == '?') {
|
|
|
1416 *d++ = ch;
|
|
|
1417 goto done;
|
|
|
1418 }
|
|
|
1419
|
|
|
1420 *d++ = ch;
|
|
|
1421 break;
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 if (type & NGX_UNESCAPE_REDIRECT) {
|
|
150
|
1425 if (ch == '?') {
|
|
|
1426 *d++ = ch;
|
|
|
1427 goto done;
|
|
|
1428 }
|
|
126
|
1429
|
|
150
|
1430 if (ch > '%' && ch < 0x7f) {
|
|
|
1431 *d++ = ch;
|
|
|
1432 break;
|
|
|
1433 }
|
|
|
1434
|
|
|
1435 *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1);
|
|
126
|
1436 break;
|
|
|
1437 }
|
|
|
1438
|
|
150
|
1439 *d++ = ch;
|
|
126
|
1440
|
|
|
1441 break;
|
|
|
1442 }
|
|
|
1443
|
|
138
|
1444 /* the invalid quoted character */
|
|
126
|
1445
|
|
|
1446 break;
|
|
|
1447 }
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 done:
|
|
|
1451
|
|
|
1452 *dst = d;
|
|
|
1453 *src = s;
|
|
|
1454 }
|
|
132
|
1455
|
|
|
1456
|
|
340
|
1457 uintptr_t
|
|
|
1458 ngx_escape_html(u_char *dst, u_char *src, size_t size)
|
|
|
1459 {
|
|
|
1460 u_char ch;
|
|
|
1461 ngx_uint_t i, len;
|
|
|
1462
|
|
|
1463 if (dst == NULL) {
|
|
|
1464
|
|
|
1465 len = 0;
|
|
|
1466
|
|
|
1467 for (i = 0; i < size; i++) {
|
|
|
1468 switch (*src++) {
|
|
|
1469
|
|
|
1470 case '<':
|
|
|
1471 len += sizeof("<") - 2;
|
|
|
1472 break;
|
|
|
1473
|
|
|
1474 case '>':
|
|
|
1475 len += sizeof(">") - 2;
|
|
|
1476 break;
|
|
|
1477
|
|
|
1478 case '&':
|
|
|
1479 len += sizeof("&") - 2;
|
|
|
1480 break;
|
|
|
1481
|
|
|
1482 default:
|
|
|
1483 break;
|
|
|
1484 }
|
|
|
1485 }
|
|
|
1486
|
|
|
1487 return (uintptr_t) len;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 for (i = 0; i < size; i++) {
|
|
|
1491 ch = *src++;
|
|
|
1492
|
|
|
1493 switch (ch) {
|
|
|
1494
|
|
|
1495 case '<':
|
|
|
1496 *dst++ = '&'; *dst++ = 'l'; *dst++ = 't'; *dst++ = ';';
|
|
|
1497 break;
|
|
|
1498
|
|
|
1499 case '>':
|
|
|
1500 *dst++ = '&'; *dst++ = 'g'; *dst++ = 't'; *dst++ = ';';
|
|
|
1501 break;
|
|
|
1502
|
|
|
1503 case '&':
|
|
|
1504 *dst++ = '&'; *dst++ = 'a'; *dst++ = 'm'; *dst++ = 'p';
|
|
|
1505 *dst++ = ';';
|
|
|
1506 break;
|
|
|
1507
|
|
|
1508 default:
|
|
|
1509 *dst++ = ch;
|
|
|
1510 break;
|
|
|
1511 }
|
|
|
1512 }
|
|
|
1513
|
|
|
1514 return (uintptr_t) dst;
|
|
|
1515 }
|
|
|
1516
|
|
|
1517
|
|
302
|
1518 /* ngx_sort() is implemented as insertion sort because we need stable sort */
|
|
|
1519
|
|
|
1520 void
|
|
|
1521 ngx_sort(void *base, size_t n, size_t size,
|
|
372
|
1522 ngx_int_t (*cmp)(const void *, const void *))
|
|
302
|
1523 {
|
|
372
|
1524 u_char *p1, *p2, *p;
|
|
|
1525
|
|
|
1526 p = ngx_alloc(size, ngx_cycle->log);
|
|
|
1527 if (p == NULL) {
|
|
|
1528 return;
|
|
|
1529 }
|
|
302
|
1530
|
|
|
1531 for (p1 = (u_char *) base + size;
|
|
|
1532 p1 < (u_char *) base + n * size;
|
|
|
1533 p1 += size)
|
|
|
1534 {
|
|
372
|
1535 ngx_memcpy(p, p1, size);
|
|
302
|
1536
|
|
|
1537 for (p2 = p1;
|
|
372
|
1538 p2 > (u_char *) base && cmp(p2 - size, p) > 0;
|
|
302
|
1539 p2 -= size)
|
|
|
1540 {
|
|
|
1541 ngx_memcpy(p2, p2 - size, size);
|
|
|
1542 }
|
|
|
1543
|
|
372
|
1544 ngx_memcpy(p2, p, size);
|
|
302
|
1545 }
|
|
372
|
1546
|
|
|
1547 ngx_free(p);
|
|
302
|
1548 }
|
|
|
1549
|
|
|
1550
|
|
132
|
1551 #if (NGX_MEMCPY_LIMIT)
|
|
|
1552
|
|
|
1553 void *
|
|
|
1554 ngx_memcpy(void *dst, void *src, size_t n)
|
|
|
1555 {
|
|
|
1556 if (n > NGX_MEMCPY_LIMIT) {
|
|
|
1557 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n);
|
|
|
1558 ngx_debug_point();
|
|
|
1559 }
|
|
|
1560
|
|
|
1561 return memcpy(dst, src, n);
|
|
|
1562 }
|
|
|
1563
|
|
|
1564 #endif
|
