Mercurial > hg > nginx
annotate src/os/win32/ngx_files.c @ 3382:6be1f25bae90
fix Win32 error messages when an temporary file replaces an existent file:
*) do not rename an already renamed file
*) now ngx_win32_rename_file() returns error code
*) do not log failure inside ngx_win32_rename_file()
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 15 Dec 2009 13:47:02 +0000 |
parents | 26784c34e8be |
children | 15017418fd84 |
rev | line source |
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441
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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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42
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
8
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11 #define NGX_UTF16_BUFLEN 256 |
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12 |
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13 static u_short *ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t len); |
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14 |
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15 |
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16 /* FILE_FLAG_BACKUP_SEMANTICS allows to obtain a handle to a directory */ |
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17 |
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18 ngx_fd_t |
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19 ngx_open_file(u_char *name, u_long mode, u_long create, u_long access) |
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20 { |
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21 u_short *u; |
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22 ngx_fd_t fd; |
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23 ngx_err_t err; |
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24 u_short utf16[NGX_UTF16_BUFLEN]; |
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25 |
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26 u = ngx_utf8_to_utf16(utf16, name, NGX_UTF16_BUFLEN); |
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27 |
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28 if (u == NULL) { |
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29 return INVALID_HANDLE_VALUE; |
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30 } |
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31 |
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32 fd = CreateFileW(u, mode, |
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33 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, |
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34 NULL, create, FILE_FLAG_BACKUP_SEMANTICS, NULL); |
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35 |
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36 if (u != utf16) { |
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37 err = ngx_errno; |
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38 ngx_free(u); |
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39 ngx_set_errno(err); |
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40 } |
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41 |
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42 return fd; |
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43 } |
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44 |
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45 |
561 | 46 ssize_t |
47 ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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48 { |
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49 u_long n; |
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50 ngx_err_t err; |
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51 OVERLAPPED ovlp, *povlp; |
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52 |
3156 | 53 ovlp.Internal = 0; |
54 ovlp.InternalHigh = 0; | |
55 ovlp.Offset = (u_long) offset; | |
56 ovlp.OffsetHigh = (u_long) (offset >> 32); | |
57 ovlp.hEvent = NULL; | |
461 | 58 |
3156 | 59 povlp = &ovlp; |
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60 |
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61 if (ReadFile(file->fd, buf, size, &n, povlp) == 0) { |
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62 err = ngx_errno; |
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63 |
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64 if (err == ERROR_HANDLE_EOF) { |
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65 return 0; |
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66 } |
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67 |
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68 ngx_log_error(NGX_LOG_ERR, file->log, err, |
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69 "ReadFile() \"%s\" failed", file->name.data); |
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70 return NGX_ERROR; |
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71 } |
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72 |
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73 file->offset += n; |
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74 |
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75 return n; |
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76 } |
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77 |
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78 |
561 | 79 ssize_t |
80 ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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81 { |
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82 u_long n; |
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83 OVERLAPPED ovlp, *povlp; |
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84 |
3156 | 85 ovlp.Internal = 0; |
86 ovlp.InternalHigh = 0; | |
87 ovlp.Offset = (u_long) offset; | |
88 ovlp.OffsetHigh = (u_long) (offset >> 32); | |
89 ovlp.hEvent = NULL; | |
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90 |
3156 | 91 povlp = &ovlp; |
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92 |
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93 if (WriteFile(file->fd, buf, size, &n, povlp) == 0) { |
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94 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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95 "WriteFile() \"%s\" failed", file->name.data); |
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96 return NGX_ERROR; |
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97 } |
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98 |
3158 | 99 if (n != size) { |
100 ngx_log_error(NGX_LOG_CRIT, file->log, 0, | |
101 "WriteFile() \"%s\" has written only %ul of %uz", | |
102 file->name.data, n, size); | |
103 return NGX_ERROR; | |
104 } | |
105 | |
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106 file->offset += n; |
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107 |
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108 return n; |
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109 } |
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110 |
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111 |
561 | 112 ssize_t |
113 ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, | |
114 ngx_pool_t *pool) | |
184
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115 { |
292
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116 u_char *buf, *prev; |
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117 size_t size; |
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118 ssize_t total, n; |
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119 |
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120 total = 0; |
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121 |
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122 while (cl) { |
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123 buf = cl->buf->pos; |
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124 prev = buf; |
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125 size = 0; |
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126 |
344
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127 /* coalesce the neighbouring bufs */ |
184
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128 |
343
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129 while (cl && prev == cl->buf->pos) { |
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130 size += cl->buf->last - cl->buf->pos; |
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131 prev = cl->buf->last; |
184
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132 cl = cl->next; |
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133 } |
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134 |
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135 n = ngx_write_file(file, buf, size, offset); |
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136 |
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137 if (n == NGX_ERROR) { |
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138 return NGX_ERROR; |
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139 } |
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140 |
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141 total += n; |
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142 offset += n; |
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143 } |
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144 |
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145 return total; |
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146 } |
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147 |
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148 |
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149 ssize_t |
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150 ngx_read_fd(ngx_fd_t fd, void *buf, size_t size) |
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151 { |
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152 u_long n; |
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153 |
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154 if (ReadFile(fd, buf, size, &n, NULL) != 0) { |
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155 return (size_t) n; |
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156 } |
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157 |
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158 return -1; |
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159 } |
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160 |
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161 |
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162 ssize_t |
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163 ngx_write_fd(ngx_fd_t fd, void *buf, size_t size) |
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164 { |
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165 u_long n; |
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166 |
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167 if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
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168 return (size_t) n; |
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169 } |
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170 |
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171 return -1; |
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172 } |
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173 |
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174 |
2769
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175 ssize_t |
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176 ngx_write_console(ngx_fd_t fd, void *buf, size_t size) |
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177 { |
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178 u_long n; |
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179 |
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180 (void) CharToOemBuff(buf, buf, size); |
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181 |
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182 if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
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183 return (size_t) n; |
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184 } |
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185 |
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186 return -1; |
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187 } |
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188 |
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189 |
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190 ngx_err_t |
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191 ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log) |
184
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192 { |
499 | 193 u_char *name; |
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194 ngx_err_t err; |
499 | 195 ngx_uint_t collision; |
196 ngx_atomic_uint_t num; | |
184
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197 |
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198 name = ngx_alloc(to->len + 1 + 10 + 1 + sizeof("DELETE"), log); |
501 | 199 if (name == NULL) { |
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200 return NGX_ENOMEM; |
186
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185
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201 } |
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185
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202 |
184
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203 ngx_memcpy(name, to->data, to->len); |
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204 |
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205 collision = 0; |
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206 |
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207 /* mutex_lock() (per cache or single ?) */ |
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208 |
499 | 209 for ( ;; ) { |
184
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210 num = ngx_next_temp_number(collision); |
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211 |
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212 ngx_sprintf(name + to->len, ".%0muA.DELETE%Z", num); |
184
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213 |
499 | 214 if (MoveFile((const char *) to->data, (const char *) name) != 0) { |
215 break; | |
184
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216 } |
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217 |
499 | 218 collision = 1; |
219 | |
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220 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, |
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221 "MoveFile() \"%s\" to \"%s\" failed", to->data, name); |
499 | 222 } |
184
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223 |
292
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290
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|
224 if (MoveFile((const char *) from->data, (const char *) to->data) == 0) { |
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225 err = ngx_errno; |
186
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226 |
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227 } else { |
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228 err = 0; |
186
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229 } |
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230 |
1051 | 231 if (DeleteFile((const char *) name) == 0) { |
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232 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, |
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233 "DeleteFile() \"%s\" failed", name); |
184
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234 } |
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235 |
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236 /* mutex_unlock() */ |
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237 |
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238 ngx_free(name); |
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239 |
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240 return err; |
184
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241 } |
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242 |
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243 |
561 | 244 ngx_int_t |
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245 ngx_file_info(u_char *file, ngx_file_info_t *sb) |
185
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246 { |
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247 long rc; |
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248 u_short *u; |
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249 ngx_err_t err; |
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250 WIN32_FILE_ATTRIBUTE_DATA fa; |
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251 u_short utf16[NGX_UTF16_BUFLEN]; |
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252 |
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253 u = ngx_utf8_to_utf16(utf16, file, NGX_UTF16_BUFLEN); |
185
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254 |
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255 if (u == NULL) { |
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256 return NGX_FILE_ERROR; |
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257 } |
185
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258 |
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259 rc = GetFileAttributesExW(u, GetFileExInfoStandard, &fa); |
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260 |
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261 if (u != utf16) { |
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262 err = ngx_errno; |
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263 ngx_free(u); |
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264 ngx_set_errno(err); |
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265 } |
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266 |
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267 sb->dwFileAttributes = fa.dwFileAttributes; |
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268 sb->ftCreationTime = fa.ftCreationTime; |
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269 sb->ftLastAccessTime = fa.ftLastAccessTime; |
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270 sb->ftLastWriteTime = fa.ftLastWriteTime; |
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271 sb->nFileSizeHigh = fa.nFileSizeHigh; |
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272 sb->nFileSizeLow = fa.nFileSizeLow; |
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273 |
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274 return rc; |
185
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275 } |
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276 |
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277 |
561 | 278 ngx_int_t |
681 | 279 ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) |
280 { | |
281 uint64_t intervals; | |
282 FILETIME ft; | |
283 | |
284 /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ | |
285 | |
286 intervals = s * 10000000 + 116444736000000000; | |
287 | |
288 ft.dwLowDateTime = (DWORD) intervals; | |
289 ft.dwHighDateTime = (DWORD) (intervals >> 32); | |
290 | |
291 if (SetFileTime(fd, NULL, NULL, &ft) != 0) { | |
292 return NGX_OK; | |
293 } | |
294 | |
295 return NGX_ERROR; | |
296 } | |
297 | |
298 | |
2259 | 299 char * |
300 ngx_realpath(u_char *path, u_char *resolved) | |
301 { | |
302 /* STUB */ | |
303 return (char *) path; | |
304 } | |
305 | |
306 | |
561 | 307 ngx_int_t |
308 ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) | |
186
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309 { |
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310 ngx_cpystrn(name->data + name->len, NGX_DIR_MASK, NGX_DIR_MASK_LEN + 1); |
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311 |
727 | 312 dir->dir = FindFirstFile((const char *) name->data, &dir->finddata); |
577 | 313 |
186
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314 if (dir->dir == INVALID_HANDLE_VALUE) { |
577 | 315 return NGX_ERROR; |
186
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316 } |
577 | 317 |
457 | 318 dir->valid_info = 1; |
186
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319 dir->ready = 1; |
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320 |
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321 return NGX_OK; |
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322 } |
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323 |
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324 |
561 | 325 ngx_int_t |
326 ngx_read_dir(ngx_dir_t *dir) | |
186
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327 { |
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328 if (dir->ready) { |
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329 dir->ready = 0; |
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330 return NGX_OK; |
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331 } |
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332 |
727 | 333 if (FindNextFile(dir->dir, &dir->finddata) != 0) { |
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334 dir->type = 1; |
681 | 335 return NGX_OK; |
186
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336 } |
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337 |
681 | 338 return NGX_ERROR; |
186
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339 } |
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340 |
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341 |
501 | 342 ngx_int_t |
727 | 343 ngx_open_glob(ngx_glob_t *gl) |
344 { | |
2459 | 345 u_char *p; |
346 size_t len; | |
347 ngx_err_t err; | |
1632 | 348 |
727 | 349 gl->dir = FindFirstFile((const char *) gl->pattern, &gl->finddata); |
350 | |
351 if (gl->dir == INVALID_HANDLE_VALUE) { | |
1980 | 352 |
2459 | 353 err = ngx_errno; |
354 | |
355 if ((err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND) | |
356 && gl->test) | |
357 { | |
1980 | 358 gl->no_match = 1; |
359 return NGX_OK; | |
360 } | |
361 | |
727 | 362 return NGX_ERROR; |
363 } | |
364 | |
1632 | 365 for (p = gl->pattern; *p; p++) { |
366 if (*p == '/') { | |
367 gl->last = p + 1 - gl->pattern; | |
368 } | |
369 } | |
370 | |
371 len = ngx_strlen(gl->finddata.cFileName); | |
372 gl->name.len = gl->last + len; | |
373 | |
374 gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); | |
375 if (gl->name.data == NULL) { | |
376 return NGX_ERROR; | |
377 } | |
378 | |
379 ngx_memcpy(gl->name.data, gl->pattern, gl->last); | |
380 ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, | |
381 len + 1); | |
382 | |
727 | 383 gl->ready = 1; |
384 | |
385 return NGX_OK; | |
386 } | |
387 | |
388 | |
389 ngx_int_t | |
390 ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) | |
391 { | |
1632 | 392 size_t len; |
727 | 393 ngx_err_t err; |
394 | |
1980 | 395 if (gl->no_match) { |
396 return NGX_DONE; | |
397 } | |
398 | |
727 | 399 if (gl->ready) { |
1632 | 400 *name = gl->name; |
727 | 401 |
402 gl->ready = 0; | |
403 return NGX_OK; | |
404 } | |
405 | |
1632 | 406 ngx_free(gl->name.data); |
407 gl->name.data = NULL; | |
408 | |
727 | 409 if (FindNextFile(gl->dir, &gl->finddata) != 0) { |
1632 | 410 |
411 len = ngx_strlen(gl->finddata.cFileName); | |
412 gl->name.len = gl->last + len; | |
413 | |
414 gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); | |
415 if (gl->name.data == NULL) { | |
416 return NGX_ERROR; | |
417 } | |
418 | |
419 ngx_memcpy(gl->name.data, gl->pattern, gl->last); | |
420 ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, | |
421 len + 1); | |
422 | |
423 *name = gl->name; | |
727 | 424 |
425 return NGX_OK; | |
426 } | |
427 | |
428 err = ngx_errno; | |
429 | |
430 if (err == NGX_ENOMOREFILES) { | |
431 return NGX_DONE; | |
432 } | |
433 | |
434 ngx_log_error(NGX_LOG_ALERT, gl->log, err, | |
435 "FindNextFile(%s) failed", gl->pattern); | |
436 | |
437 return NGX_ERROR; | |
438 } | |
439 | |
440 | |
441 void | |
442 ngx_close_glob(ngx_glob_t *gl) | |
443 { | |
1632 | 444 if (gl->name.data) { |
445 ngx_free(gl->name.data); | |
446 } | |
447 | |
1980 | 448 if (gl->dir == INVALID_HANDLE_VALUE) { |
449 return; | |
450 } | |
451 | |
1632 | 452 if (FindClose(gl->dir) == 0) { |
727 | 453 ngx_log_error(NGX_LOG_ALERT, gl->log, ngx_errno, |
454 "FindClose(%s) failed", gl->pattern); | |
455 } | |
456 } | |
457 | |
458 | |
459 ngx_int_t | |
501 | 460 ngx_de_info(u_char *name, ngx_dir_t *dir) |
461 { | |
462 return NGX_OK; | |
463 } | |
464 | |
465 | |
466 ngx_int_t | |
467 ngx_de_link_info(u_char *name, ngx_dir_t *dir) | |
468 { | |
469 return NGX_OK; | |
470 } | |
471 | |
472 | |
561 | 473 ngx_int_t |
3178 | 474 ngx_read_ahead(ngx_fd_t fd, size_t n) |
475 { | |
476 return ~NGX_FILE_ERROR; | |
477 } | |
478 | |
479 | |
480 ngx_int_t | |
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481 ngx_directio_on(ngx_fd_t fd) |
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482 { |
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483 return ~NGX_FILE_ERROR; |
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484 } |
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485 |
2615 | 486 |
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487 ngx_int_t |
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488 ngx_directio_off(ngx_fd_t fd) |
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489 { |
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490 return ~NGX_FILE_ERROR; |
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491 } |
2615 | 492 |
493 | |
494 size_t | |
495 ngx_fs_bsize(u_char *name) | |
496 { | |
497 u_char root[4]; | |
498 u_long sc, bs, nfree, ncl; | |
499 | |
500 if (name[2] == ':') { | |
501 ngx_cpystrn(root, name, 4); | |
502 name = root; | |
503 } | |
504 | |
505 if (GetDiskFreeSpace((const char *) name, &sc, &bs, &nfree, &ncl) == 0) { | |
506 return 512; | |
507 } | |
508 | |
509 return sc * bs; | |
510 } | |
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511 |
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512 |
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513 static u_short * |
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514 ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t len) |
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515 { |
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516 u_char *p; |
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517 u_short *u, *last; |
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518 uint32_t n; |
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519 |
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520 p = utf8; |
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521 u = utf16; |
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522 last = utf16 + len; |
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523 |
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524 while (u < last) { |
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525 |
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526 if (*p < 0x80) { |
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527 *u = (u_short) *p; |
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528 |
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529 if (*p == 0) { |
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530 return utf16; |
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531 } |
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532 |
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533 u++; |
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534 p++; |
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535 |
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536 continue; |
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537 } |
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538 |
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539 n = ngx_utf8_decode(&p, 4); |
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540 |
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541 if (n > 0xffff) { |
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542 free(utf16); |
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543 ngx_set_errno(NGX_EILSEQ); |
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544 return NULL; |
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545 } |
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546 |
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547 *u++ = (u_short) n; |
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548 } |
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549 |
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550 /* the given buffer is not enough, allocate a new one */ |
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551 |
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552 u = malloc(((p - utf8) + ngx_strlen(p) + 1) * sizeof(u_short)); |
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553 if (u == NULL) { |
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554 return NULL; |
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555 } |
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556 |
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557 ngx_memcpy(u, utf16, len * 2); |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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558 |
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559 utf16 = u; |
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560 u += len; |
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561 |
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562 for ( ;; ) { |
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|
563 |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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564 if (*p < 0x80) { |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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565 *u = (u_short) *p; |
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|
566 |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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567 if (*p == 0) { |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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|
568 return utf16; |
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|
569 } |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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|
570 |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
571 u++; |
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572 p++; |
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|
573 |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
574 continue; |
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|
575 } |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
576 |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
577 n = ngx_utf8_decode(&p, 4); |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
578 |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
579 if (n > 0xffff) { |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
580 free(utf16); |
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|
581 ngx_set_errno(NGX_EILSEQ); |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
582 return NULL; |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
583 } |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
584 |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
585 *u++ = (u_short) n; |
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
586 } |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
587 |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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changeset
|
588 /* unreachable */ |
64a10d6b97bd
win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
Igor Sysoev <igor@sysoev.ru>
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|
589 } |