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