| 1 | /* $Id: ntstat.c 2851 2016-08-31 17:30:52Z bird $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * MSC + NT stat, lstat and fstat.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (c) 2005-2013 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
|
|---|
| 8 | *
|
|---|
| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
|
|---|
| 10 | * copy of this software and associated documentation files (the "Software"),
|
|---|
| 11 | * to deal in the Software without restriction, including without limitation
|
|---|
| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|---|
| 13 | * and/or sell copies of the Software, and to permit persons to whom the
|
|---|
| 14 | * Software is furnished to do so, subject to the following conditions:
|
|---|
| 15 | *
|
|---|
| 16 | * The above copyright notice and this permission notice shall be included
|
|---|
| 17 | * in all copies or substantial portions of the Software.
|
|---|
| 18 | *
|
|---|
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|---|
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|---|
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|---|
| 22 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|---|
| 23 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|---|
| 24 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|---|
| 25 | * IN THE SOFTWARE.
|
|---|
| 26 | *
|
|---|
| 27 | * Alternatively, the content of this file may be used under the terms of the
|
|---|
| 28 | * GPL version 2 or later, or LGPL version 2.1 or later.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 32 | /*******************************************************************************
|
|---|
| 33 | * Header Files *
|
|---|
| 34 | *******************************************************************************/
|
|---|
| 35 | #include <stdio.h>
|
|---|
| 36 | #include <errno.h>
|
|---|
| 37 | #include <malloc.h>
|
|---|
| 38 |
|
|---|
| 39 | #include "ntstuff.h"
|
|---|
| 40 | #include "nthlp.h"
|
|---|
| 41 | #include "ntstat.h"
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 | #undef stat
|
|---|
| 45 |
|
|---|
| 46 | static int birdIsExecutableExtension(const char *pszExt)
|
|---|
| 47 | {
|
|---|
| 48 | return !strcmp(pszExt, "exe")
|
|---|
| 49 | || !strcmp(pszExt, "cmd")
|
|---|
| 50 | || !strcmp(pszExt, "bat")
|
|---|
| 51 | || !strcmp(pszExt, "vbs")
|
|---|
| 52 | || !strcmp(pszExt, "com")
|
|---|
| 53 | ;
|
|---|
| 54 | }
|
|---|
| 55 |
|
|---|
| 56 |
|
|---|
| 57 | static int birdIsFileExecutable(const char *pszName)
|
|---|
| 58 | {
|
|---|
| 59 | const char *pszExt = NULL;
|
|---|
| 60 | char szExt[8];
|
|---|
| 61 | size_t cchExt;
|
|---|
| 62 | unsigned i;
|
|---|
| 63 | char ch;
|
|---|
| 64 |
|
|---|
| 65 | /* Look for a 3 char extension. */
|
|---|
| 66 | ch = *pszName++;
|
|---|
| 67 | if (!ch)
|
|---|
| 68 | return 0;
|
|---|
| 69 |
|
|---|
| 70 | while ((ch = *pszName++) != '\0')
|
|---|
| 71 | if (ch == '.')
|
|---|
| 72 | pszExt = pszName;
|
|---|
| 73 |
|
|---|
| 74 | if (!pszExt)
|
|---|
| 75 | return 0;
|
|---|
| 76 | pszExt++;
|
|---|
| 77 | cchExt = pszName - pszExt;
|
|---|
| 78 | if (cchExt != 3)
|
|---|
| 79 | return 0;
|
|---|
| 80 |
|
|---|
| 81 | /* Copy the extension out and lower case it. */
|
|---|
| 82 | for (i = 0; i < cchExt; i++, pszExt++)
|
|---|
| 83 | {
|
|---|
| 84 | ch = *pszExt;
|
|---|
| 85 | if (ch >= 'A' && ch <= 'Z')
|
|---|
| 86 | ch += 'a' - 'A';
|
|---|
| 87 | szExt[i] = ch;
|
|---|
| 88 | }
|
|---|
| 89 | szExt[i] = '\0';
|
|---|
| 90 |
|
|---|
| 91 | return birdIsExecutableExtension(szExt);
|
|---|
| 92 | }
|
|---|
| 93 |
|
|---|
| 94 |
|
|---|
| 95 | static int birdIsFileExecutableW(WCHAR const *pwcName, ULONG cwcName)
|
|---|
| 96 | {
|
|---|
| 97 | char szExt[8];
|
|---|
| 98 | unsigned cchExt;
|
|---|
| 99 | unsigned i;
|
|---|
| 100 | WCHAR const *pwc;
|
|---|
| 101 |
|
|---|
| 102 | /* Look for a 3 char extension. */
|
|---|
| 103 | if (cwcName > 2 && pwcName[cwcName - 2] == '.')
|
|---|
| 104 | return 0;
|
|---|
| 105 | else if (cwcName > 3 && pwcName[cwcName - 3] == '.')
|
|---|
| 106 | return 0;
|
|---|
| 107 | else if (cwcName > 4 && pwcName[cwcName - 4] == '.')
|
|---|
| 108 | cchExt = 3;
|
|---|
| 109 | else
|
|---|
| 110 | return 0;
|
|---|
| 111 |
|
|---|
| 112 | /* Copy the extension out and lower case it. */
|
|---|
| 113 | pwc = &pwcName[cwcName - cchExt];
|
|---|
| 114 | for (i = 0; i < cchExt; i++, pwc++)
|
|---|
| 115 | {
|
|---|
| 116 | WCHAR wc = *pwc;
|
|---|
| 117 | if (wc >= 'A' && wc <= 'Z')
|
|---|
| 118 | wc += 'a' - 'A';
|
|---|
| 119 | else if (wc > 255)
|
|---|
| 120 | wc = 255;
|
|---|
| 121 | szExt[i] = (char)wc;
|
|---|
| 122 | }
|
|---|
| 123 | szExt[i] = '\0';
|
|---|
| 124 |
|
|---|
| 125 | return birdIsExecutableExtension(szExt);
|
|---|
| 126 | }
|
|---|
| 127 |
|
|---|
| 128 |
|
|---|
| 129 | static unsigned short birdFileInfoToMode(HANDLE hFile, ULONG fAttribs, const char *pszName,
|
|---|
| 130 | MY_FILE_NAME_INFORMATION *pNameInfo, __int16 *pfIsDirSymlink)
|
|---|
| 131 | {
|
|---|
| 132 | unsigned short fMode;
|
|---|
| 133 |
|
|---|
| 134 | /* File type. */
|
|---|
| 135 | if ( (fAttribs & FILE_ATTRIBUTE_REPARSE_POINT)
|
|---|
| 136 | && hFile != INVALID_HANDLE_VALUE)
|
|---|
| 137 | {
|
|---|
| 138 | MY_FILE_ATTRIBUTE_TAG_INFORMATION TagInfo;
|
|---|
| 139 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 140 | MY_NTSTATUS rcNt;
|
|---|
| 141 | Ios.Information = 0;
|
|---|
| 142 | Ios.u.Status = -1;
|
|---|
| 143 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, &TagInfo, sizeof(TagInfo), MyFileAttributeTagInformation);
|
|---|
| 144 | if ( !MY_NT_SUCCESS(rcNt)
|
|---|
| 145 | || !MY_NT_SUCCESS(Ios.u.Status)
|
|---|
| 146 | || TagInfo.ReparseTag != IO_REPARSE_TAG_SYMLINK)
|
|---|
| 147 | fAttribs &= ~FILE_ATTRIBUTE_REPARSE_POINT;
|
|---|
| 148 | }
|
|---|
| 149 |
|
|---|
| 150 | if (fAttribs & FILE_ATTRIBUTE_REPARSE_POINT)
|
|---|
| 151 | {
|
|---|
| 152 | *pfIsDirSymlink = !!(fAttribs & FILE_ATTRIBUTE_DIRECTORY);
|
|---|
| 153 | fMode = S_IFLNK;
|
|---|
| 154 | }
|
|---|
| 155 | else
|
|---|
| 156 | {
|
|---|
| 157 | *pfIsDirSymlink = 0;
|
|---|
| 158 | if (fAttribs & FILE_ATTRIBUTE_DIRECTORY)
|
|---|
| 159 | fMode = S_IFDIR;
|
|---|
| 160 | else
|
|---|
| 161 | fMode = S_IFREG;
|
|---|
| 162 | }
|
|---|
| 163 |
|
|---|
| 164 | /* Access mask. */
|
|---|
| 165 | fMode |= S_IROTH | S_IRGRP | S_IRUSR;
|
|---|
| 166 | if (!(fAttribs & FILE_ATTRIBUTE_READONLY))
|
|---|
| 167 | fMode |= S_IWOTH | S_IWGRP | S_IWUSR;
|
|---|
| 168 | if ( (fAttribs & FILE_ATTRIBUTE_DIRECTORY)
|
|---|
| 169 | || (pszName
|
|---|
| 170 | ? birdIsFileExecutable(pszName)
|
|---|
| 171 | : birdIsFileExecutableW(pNameInfo->FileName, pNameInfo->FileNameLength)) )
|
|---|
| 172 | fMode |= S_IXOTH | S_IXGRP | S_IXUSR;
|
|---|
| 173 |
|
|---|
| 174 | return fMode;
|
|---|
| 175 | }
|
|---|
| 176 |
|
|---|
| 177 |
|
|---|
| 178 | static void birdNtTimeToTimeSpec(__int64 iNtTime, BirdTimeSpec_T *pTimeSpec)
|
|---|
| 179 | {
|
|---|
| 180 | iNtTime -= BIRD_NT_EPOCH_OFFSET_UNIX_100NS;
|
|---|
| 181 | pTimeSpec->tv_sec = iNtTime / 10000000;
|
|---|
| 182 | pTimeSpec->tv_nsec = (iNtTime % 10000000) * 100;
|
|---|
| 183 | }
|
|---|
| 184 |
|
|---|
| 185 |
|
|---|
| 186 | /**
|
|---|
| 187 | * Fills in a stat structure from an MY_FILE_ID_FULL_DIR_INFORMATION entry.
|
|---|
| 188 | *
|
|---|
| 189 | * @param pStat The stat structure.
|
|---|
| 190 | * @param pBuf The MY_FILE_ID_FULL_DIR_INFORMATION entry.
|
|---|
| 191 | * @param pszPath Optionally, the path for X bit checks.
|
|---|
| 192 | * @remarks Caller sets st_dev.
|
|---|
| 193 | */
|
|---|
| 194 | void birdStatFillFromFileIdFullDirInfo(BirdStat_T *pStat, MY_FILE_ID_FULL_DIR_INFORMATION const *pBuf, const char *pszPath)
|
|---|
| 195 | {
|
|---|
| 196 | pStat->st_mode = birdFileInfoToMode(INVALID_HANDLE_VALUE, pBuf->FileAttributes, pszPath,
|
|---|
| 197 | NULL, &pStat->st_dirsymlink);
|
|---|
| 198 | pStat->st_padding0[0] = 0;
|
|---|
| 199 | pStat->st_padding0[1] = 0;
|
|---|
| 200 | pStat->st_size = pBuf->EndOfFile.QuadPart;
|
|---|
| 201 | birdNtTimeToTimeSpec(pBuf->CreationTime.QuadPart, &pStat->st_birthtim);
|
|---|
| 202 | birdNtTimeToTimeSpec(pBuf->ChangeTime.QuadPart, &pStat->st_ctim);
|
|---|
| 203 | birdNtTimeToTimeSpec(pBuf->LastWriteTime.QuadPart, &pStat->st_mtim);
|
|---|
| 204 | birdNtTimeToTimeSpec(pBuf->LastAccessTime.QuadPart, &pStat->st_atim);
|
|---|
| 205 | pStat->st_ino = pBuf->FileId.QuadPart;
|
|---|
| 206 | pStat->st_nlink = 1;
|
|---|
| 207 | pStat->st_rdev = 0;
|
|---|
| 208 | pStat->st_uid = 0;
|
|---|
| 209 | pStat->st_gid = 0;
|
|---|
| 210 | pStat->st_padding1[0] = 0;
|
|---|
| 211 | pStat->st_padding1[1] = 0;
|
|---|
| 212 | pStat->st_padding1[2] = 0;
|
|---|
| 213 | pStat->st_blksize = 65536;
|
|---|
| 214 | pStat->st_blocks = (pBuf->AllocationSize.QuadPart + BIRD_STAT_BLOCK_SIZE - 1)
|
|---|
| 215 | / BIRD_STAT_BLOCK_SIZE;
|
|---|
| 216 | }
|
|---|
| 217 |
|
|---|
| 218 |
|
|---|
| 219 | /**
|
|---|
| 220 | * Fills in a stat structure from an MY_FILE_ID_BOTH_DIR_INFORMATION entry.
|
|---|
| 221 | *
|
|---|
| 222 | * @param pStat The stat structure.
|
|---|
| 223 | * @param pBuf The MY_FILE_ID_BOTH_DIR_INFORMATION entry.
|
|---|
| 224 | * @param pszPath Optionally, the path for X bit checks.
|
|---|
| 225 | * @remarks Caller sets st_dev.
|
|---|
| 226 | */
|
|---|
| 227 | void birdStatFillFromFileIdBothDirInfo(BirdStat_T *pStat, MY_FILE_ID_BOTH_DIR_INFORMATION const *pBuf, const char *pszPath)
|
|---|
| 228 | {
|
|---|
| 229 | pStat->st_mode = birdFileInfoToMode(INVALID_HANDLE_VALUE, pBuf->FileAttributes, pszPath,
|
|---|
| 230 | NULL, &pStat->st_dirsymlink);
|
|---|
| 231 | pStat->st_padding0[0] = 0;
|
|---|
| 232 | pStat->st_padding0[1] = 0;
|
|---|
| 233 | pStat->st_size = pBuf->EndOfFile.QuadPart;
|
|---|
| 234 | birdNtTimeToTimeSpec(pBuf->CreationTime.QuadPart, &pStat->st_birthtim);
|
|---|
| 235 | birdNtTimeToTimeSpec(pBuf->ChangeTime.QuadPart, &pStat->st_ctim);
|
|---|
| 236 | birdNtTimeToTimeSpec(pBuf->LastWriteTime.QuadPart, &pStat->st_mtim);
|
|---|
| 237 | birdNtTimeToTimeSpec(pBuf->LastAccessTime.QuadPart, &pStat->st_atim);
|
|---|
| 238 | pStat->st_ino = pBuf->FileId.QuadPart;
|
|---|
| 239 | pStat->st_nlink = 1;
|
|---|
| 240 | pStat->st_rdev = 0;
|
|---|
| 241 | pStat->st_uid = 0;
|
|---|
| 242 | pStat->st_gid = 0;
|
|---|
| 243 | pStat->st_padding1[0] = 0;
|
|---|
| 244 | pStat->st_padding1[1] = 0;
|
|---|
| 245 | pStat->st_padding1[2] = 0;
|
|---|
| 246 | pStat->st_blksize = 65536;
|
|---|
| 247 | pStat->st_blocks = (pBuf->AllocationSize.QuadPart + BIRD_STAT_BLOCK_SIZE - 1)
|
|---|
| 248 | / BIRD_STAT_BLOCK_SIZE;
|
|---|
| 249 | }
|
|---|
| 250 |
|
|---|
| 251 |
|
|---|
| 252 | /**
|
|---|
| 253 | * Fills in a stat structure from an MY_FILE_BOTH_DIR_INFORMATION entry.
|
|---|
| 254 | *
|
|---|
| 255 | * @param pStat The stat structure.
|
|---|
| 256 | * @param pBuf The MY_FILE_BOTH_DIR_INFORMATION entry.
|
|---|
| 257 | * @param pszPath Optionally, the path for X bit checks.
|
|---|
| 258 | * @remarks Caller sets st_dev.
|
|---|
| 259 | */
|
|---|
| 260 | void birdStatFillFromFileBothDirInfo(BirdStat_T *pStat, MY_FILE_BOTH_DIR_INFORMATION const *pBuf, const char *pszPath)
|
|---|
| 261 | {
|
|---|
| 262 | pStat->st_mode = birdFileInfoToMode(INVALID_HANDLE_VALUE, pBuf->FileAttributes, pszPath,
|
|---|
| 263 | NULL, &pStat->st_dirsymlink);
|
|---|
| 264 | pStat->st_padding0[0] = 0;
|
|---|
| 265 | pStat->st_padding0[1] = 0;
|
|---|
| 266 | pStat->st_size = pBuf->EndOfFile.QuadPart;
|
|---|
| 267 | birdNtTimeToTimeSpec(pBuf->CreationTime.QuadPart, &pStat->st_birthtim);
|
|---|
| 268 | birdNtTimeToTimeSpec(pBuf->ChangeTime.QuadPart, &pStat->st_ctim);
|
|---|
| 269 | birdNtTimeToTimeSpec(pBuf->LastWriteTime.QuadPart, &pStat->st_mtim);
|
|---|
| 270 | birdNtTimeToTimeSpec(pBuf->LastAccessTime.QuadPart, &pStat->st_atim);
|
|---|
| 271 | pStat->st_ino = 0;
|
|---|
| 272 | pStat->st_nlink = 1;
|
|---|
| 273 | pStat->st_rdev = 0;
|
|---|
| 274 | pStat->st_uid = 0;
|
|---|
| 275 | pStat->st_gid = 0;
|
|---|
| 276 | pStat->st_padding1[0] = 0;
|
|---|
| 277 | pStat->st_padding1[1] = 0;
|
|---|
| 278 | pStat->st_padding1[2] = 0;
|
|---|
| 279 | pStat->st_blksize = 65536;
|
|---|
| 280 | pStat->st_blocks = (pBuf->AllocationSize.QuadPart + BIRD_STAT_BLOCK_SIZE - 1)
|
|---|
| 281 | / BIRD_STAT_BLOCK_SIZE;
|
|---|
| 282 | }
|
|---|
| 283 |
|
|---|
| 284 |
|
|---|
| 285 | int birdStatHandle(HANDLE hFile, BirdStat_T *pStat, const char *pszPath)
|
|---|
| 286 | {
|
|---|
| 287 | int rc;
|
|---|
| 288 | MY_NTSTATUS rcNt;
|
|---|
| 289 | #if 0
|
|---|
| 290 | ULONG cbAll = sizeof(MY_FILE_ALL_INFORMATION) + 0x10000;
|
|---|
| 291 | MY_FILE_ALL_INFORMATION *pAll = (MY_FILE_ALL_INFORMATION *)birdTmpAlloc(cbAll);
|
|---|
| 292 | if (pAll)
|
|---|
| 293 | {
|
|---|
| 294 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 295 | Ios.Information = 0;
|
|---|
| 296 | Ios.u.Status = -1;
|
|---|
| 297 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, pAll, cbAll, MyFileAllInformation);
|
|---|
| 298 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 299 | rcNt = Ios.u.Status;
|
|---|
| 300 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 301 | {
|
|---|
| 302 | pStat->st_mode = birdFileInfoToMode(hFile, pAll->BasicInformation.FileAttributes, pszPath,
|
|---|
| 303 | &pAll->NameInformation, &pStat->st_dirsymlink);
|
|---|
| 304 | pStat->st_padding0[0] = 0;
|
|---|
| 305 | pStat->st_padding0[1] = 0;
|
|---|
| 306 | pStat->st_size = pAll->StandardInformation.EndOfFile.QuadPart;
|
|---|
| 307 | birdNtTimeToTimeSpec(pAll->BasicInformation.CreationTime.QuadPart, &pStat->st_birthtim);
|
|---|
| 308 | birdNtTimeToTimeSpec(pAll->BasicInformation.ChangeTime.QuadPart, &pStat->st_ctim);
|
|---|
| 309 | birdNtTimeToTimeSpec(pAll->BasicInformation.LastWriteTime.QuadPart, &pStat->st_mtim);
|
|---|
| 310 | birdNtTimeToTimeSpec(pAll->BasicInformation.LastAccessTime.QuadPart, &pStat->st_atim);
|
|---|
| 311 | pStat->st_ino = pAll->InternalInformation.IndexNumber.QuadPart;
|
|---|
| 312 | pStat->st_nlink = pAll->StandardInformation.NumberOfLinks;
|
|---|
| 313 | pStat->st_rdev = 0;
|
|---|
| 314 | pStat->st_uid = 0;
|
|---|
| 315 | pStat->st_gid = 0;
|
|---|
| 316 | pStat->st_padding1[0] = 0;
|
|---|
| 317 | pStat->st_padding1[1] = 0;
|
|---|
| 318 | pStat->st_padding1[2] = 0;
|
|---|
| 319 | pStat->st_blksize = 65536;
|
|---|
| 320 | pStat->st_blocks = (pAll->StandardInformation.AllocationSize.QuadPart + BIRD_STAT_BLOCK_SIZE - 1)
|
|---|
| 321 | / BIRD_STAT_BLOCK_SIZE;
|
|---|
| 322 |
|
|---|
| 323 | /* Get the serial number, reusing the buffer from above. */
|
|---|
| 324 | rcNt = g_pfnNtQueryVolumeInformationFile(hFile, &Ios, pAll, cbAll, MyFileFsVolumeInformation);
|
|---|
| 325 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 326 | rcNt = Ios.u.Status;
|
|---|
| 327 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 328 | {
|
|---|
| 329 | MY_FILE_FS_VOLUME_INFORMATION const *pVolInfo = (MY_FILE_FS_VOLUME_INFORMATION const *)pAll;
|
|---|
| 330 | pStat->st_dev = pVolInfo->VolumeSerialNumber
|
|---|
| 331 | | (pVolInfo->VolumeCreationTime.QuadPart << 32);
|
|---|
| 332 | rc = 0;
|
|---|
| 333 | }
|
|---|
| 334 | else
|
|---|
| 335 | {
|
|---|
| 336 | pStat->st_dev = 0;
|
|---|
| 337 | rc = birdSetErrnoFromNt(rcNt);
|
|---|
| 338 | }
|
|---|
| 339 | }
|
|---|
| 340 | else
|
|---|
| 341 | rc = birdSetErrnoFromNt(rcNt);
|
|---|
| 342 | }
|
|---|
| 343 | else
|
|---|
| 344 | rc = birdSetErrnoToNoMem();
|
|---|
| 345 | #else
|
|---|
| 346 | ULONG cbNameInfo = 0;
|
|---|
| 347 | MY_FILE_NAME_INFORMATION *pNameInfo = NULL;
|
|---|
| 348 | MY_FILE_STANDARD_INFORMATION StdInfo;
|
|---|
| 349 | MY_FILE_BASIC_INFORMATION BasicInfo;
|
|---|
| 350 | MY_FILE_INTERNAL_INFORMATION InternalInfo;
|
|---|
| 351 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 352 |
|
|---|
| 353 | Ios.Information = 0;
|
|---|
| 354 | Ios.u.Status = -1;
|
|---|
| 355 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, &StdInfo, sizeof(StdInfo), MyFileStandardInformation);
|
|---|
| 356 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 357 | rcNt = Ios.u.Status;
|
|---|
| 358 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 359 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, &BasicInfo, sizeof(BasicInfo), MyFileBasicInformation);
|
|---|
| 360 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 361 | rcNt = Ios.u.Status;
|
|---|
| 362 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 363 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, &InternalInfo, sizeof(InternalInfo), MyFileInternalInformation);
|
|---|
| 364 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 365 | rcNt = Ios.u.Status;
|
|---|
| 366 | if (MY_NT_SUCCESS(rcNt) && !pszPath)
|
|---|
| 367 | {
|
|---|
| 368 | cbNameInfo = 0x10020;
|
|---|
| 369 | pNameInfo = (MY_FILE_NAME_INFORMATION *)alloca(cbNameInfo);
|
|---|
| 370 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, pNameInfo, cbNameInfo, MyFileNameInformation);
|
|---|
| 371 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 372 | rcNt = Ios.u.Status;
|
|---|
| 373 | }
|
|---|
| 374 |
|
|---|
| 375 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 376 | {
|
|---|
| 377 | pStat->st_mode = birdFileInfoToMode(hFile, BasicInfo.FileAttributes, pszPath,
|
|---|
| 378 | pNameInfo, &pStat->st_dirsymlink);
|
|---|
| 379 | pStat->st_padding0[0] = 0;
|
|---|
| 380 | pStat->st_padding0[1] = 0;
|
|---|
| 381 | pStat->st_size = StdInfo.EndOfFile.QuadPart;
|
|---|
| 382 | birdNtTimeToTimeSpec(BasicInfo.CreationTime.QuadPart, &pStat->st_birthtim);
|
|---|
| 383 | birdNtTimeToTimeSpec(BasicInfo.ChangeTime.QuadPart, &pStat->st_ctim);
|
|---|
| 384 | birdNtTimeToTimeSpec(BasicInfo.LastWriteTime.QuadPart, &pStat->st_mtim);
|
|---|
| 385 | birdNtTimeToTimeSpec(BasicInfo.LastAccessTime.QuadPart, &pStat->st_atim);
|
|---|
| 386 | pStat->st_ino = InternalInfo.IndexNumber.QuadPart;
|
|---|
| 387 | pStat->st_nlink = StdInfo.NumberOfLinks;
|
|---|
| 388 | pStat->st_rdev = 0;
|
|---|
| 389 | pStat->st_uid = 0;
|
|---|
| 390 | pStat->st_gid = 0;
|
|---|
| 391 | pStat->st_padding1[0] = 0;
|
|---|
| 392 | pStat->st_padding1[1] = 0;
|
|---|
| 393 | pStat->st_padding1[2] = 0;
|
|---|
| 394 | pStat->st_blksize = 65536;
|
|---|
| 395 | pStat->st_blocks = (StdInfo.AllocationSize.QuadPart + BIRD_STAT_BLOCK_SIZE - 1)
|
|---|
| 396 | / BIRD_STAT_BLOCK_SIZE;
|
|---|
| 397 |
|
|---|
| 398 | /* Get the serial number, reusing the buffer from above. */
|
|---|
| 399 | if (!cbNameInfo)
|
|---|
| 400 | {
|
|---|
| 401 | cbNameInfo = sizeof(MY_FILE_FS_VOLUME_INFORMATION) + 1024;
|
|---|
| 402 | pNameInfo = (MY_FILE_NAME_INFORMATION *)alloca(cbNameInfo);
|
|---|
| 403 | }
|
|---|
| 404 | rcNt = g_pfnNtQueryVolumeInformationFile(hFile, &Ios, pNameInfo, cbNameInfo, MyFileFsVolumeInformation);
|
|---|
| 405 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 406 | rcNt = Ios.u.Status;
|
|---|
| 407 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 408 | {
|
|---|
| 409 | MY_FILE_FS_VOLUME_INFORMATION const *pVolInfo = (MY_FILE_FS_VOLUME_INFORMATION const *)pNameInfo;
|
|---|
| 410 | pStat->st_dev = pVolInfo->VolumeSerialNumber
|
|---|
| 411 | | (pVolInfo->VolumeCreationTime.QuadPart << 32);
|
|---|
| 412 | rc = 0;
|
|---|
| 413 | }
|
|---|
| 414 | else
|
|---|
| 415 | {
|
|---|
| 416 | pStat->st_dev = 0;
|
|---|
| 417 | rc = birdSetErrnoFromNt(rcNt);
|
|---|
| 418 | }
|
|---|
| 419 | }
|
|---|
| 420 | else
|
|---|
| 421 | rc = birdSetErrnoFromNt(rcNt);
|
|---|
| 422 |
|
|---|
| 423 | #endif
|
|---|
| 424 | return rc;
|
|---|
| 425 | }
|
|---|
| 426 |
|
|---|
| 427 |
|
|---|
| 428 | /**
|
|---|
| 429 | * Generates a device number from the volume information.
|
|---|
| 430 | *
|
|---|
| 431 | * @returns Device number.
|
|---|
| 432 | * @param pVolInfo Volume information.
|
|---|
| 433 | */
|
|---|
| 434 | unsigned __int64 birdVolumeInfoToDeviceNumber(const MY_FILE_FS_VOLUME_INFORMATION *pVolInfo)
|
|---|
| 435 | {
|
|---|
| 436 | return pVolInfo->VolumeSerialNumber
|
|---|
| 437 | | (pVolInfo->VolumeCreationTime.QuadPart << 32);
|
|---|
| 438 | }
|
|---|
| 439 |
|
|---|
| 440 |
|
|---|
| 441 | /**
|
|---|
| 442 | * Quries the volume information and generates a device number from it.
|
|---|
| 443 | *
|
|---|
| 444 | * @returns NT status code.
|
|---|
| 445 | * @param hFile The file/dir/whatever to query the volume info
|
|---|
| 446 | * and device number for.
|
|---|
| 447 | * @param pVolInfo User provided buffer for volume information.
|
|---|
| 448 | * @param cbVolInfo The size of the buffer.
|
|---|
| 449 | * @param puDevNo Where to return the device number. This is set
|
|---|
| 450 | * to zero on failure.
|
|---|
| 451 | */
|
|---|
| 452 | MY_NTSTATUS birdQueryVolumeDeviceNumber(HANDLE hFile, MY_FILE_FS_VOLUME_INFORMATION *pVolInfo, size_t cbVolInfo,
|
|---|
| 453 | unsigned __int64 *puDevNo)
|
|---|
| 454 | {
|
|---|
| 455 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 456 | MY_NTSTATUS rcNt;
|
|---|
| 457 |
|
|---|
| 458 | Ios.u.Status = -1;
|
|---|
| 459 | Ios.Information = -1;
|
|---|
| 460 |
|
|---|
| 461 | pVolInfo->VolumeSerialNumber = 0;
|
|---|
| 462 | pVolInfo->VolumeCreationTime.QuadPart = 0;
|
|---|
| 463 |
|
|---|
| 464 | rcNt = g_pfnNtQueryVolumeInformationFile(hFile, &Ios, pVolInfo, (LONG)cbVolInfo, MyFileFsVolumeInformation);
|
|---|
| 465 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 466 | {
|
|---|
| 467 | *puDevNo = birdVolumeInfoToDeviceNumber(pVolInfo);
|
|---|
| 468 | return Ios.u.Status;
|
|---|
| 469 | }
|
|---|
| 470 | *puDevNo = 0;
|
|---|
| 471 | return rcNt;
|
|---|
| 472 | }
|
|---|
| 473 |
|
|---|
| 474 |
|
|---|
| 475 | static int birdStatInternal(const char *pszPath, BirdStat_T *pStat, int fFollow)
|
|---|
| 476 | {
|
|---|
| 477 | int rc;
|
|---|
| 478 | HANDLE hFile = birdOpenFile(pszPath,
|
|---|
| 479 | FILE_READ_ATTRIBUTES,
|
|---|
| 480 | FILE_ATTRIBUTE_NORMAL,
|
|---|
| 481 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|---|
| 482 | FILE_OPEN,
|
|---|
| 483 | FILE_OPEN_FOR_BACKUP_INTENT | (fFollow ? 0 : FILE_OPEN_REPARSE_POINT),
|
|---|
| 484 | OBJ_CASE_INSENSITIVE);
|
|---|
| 485 | if (hFile != INVALID_HANDLE_VALUE)
|
|---|
| 486 | {
|
|---|
| 487 | rc = birdStatHandle(hFile, pStat, pszPath);
|
|---|
| 488 | birdCloseFile(hFile);
|
|---|
| 489 |
|
|---|
| 490 | #if 0
|
|---|
| 491 | {
|
|---|
| 492 | static char s_szPrev[256];
|
|---|
| 493 | size_t cchPath = strlen(pszPath);
|
|---|
| 494 | if (memcmp(s_szPrev, pszPath, cchPath >= 255 ? 255 : cchPath + 1) == 0)
|
|---|
| 495 | fprintf(stderr, "stat: %s -> rc/errno=%d/%u\n", pszPath, rc, errno);
|
|---|
| 496 | else
|
|---|
| 497 | memcpy(s_szPrev, pszPath, cchPath + 1);
|
|---|
| 498 | }
|
|---|
| 499 | #endif
|
|---|
| 500 | //fprintf(stderr, "stat: %s -> rc/errno=%d/%u\n", pszPath, rc, errno);
|
|---|
| 501 | }
|
|---|
| 502 | else
|
|---|
| 503 | {
|
|---|
| 504 | //fprintf(stderr, "stat: %s -> %u\n", pszPath, GetLastError());
|
|---|
| 505 |
|
|---|
| 506 | /*
|
|---|
| 507 | * On things like pagefile.sys we may get sharing violation. We fall
|
|---|
| 508 | * back on directory enumeration for dealing with that.
|
|---|
| 509 | */
|
|---|
| 510 | if ( errno == ETXTBSY
|
|---|
| 511 | && strchr(pszPath, '*') == NULL /* Serious paranoia... */
|
|---|
| 512 | && strchr(pszPath, '?') == NULL)
|
|---|
| 513 | {
|
|---|
| 514 | MY_UNICODE_STRING NameUniStr;
|
|---|
| 515 | hFile = birdOpenParentDir(pszPath,
|
|---|
| 516 | FILE_READ_DATA | SYNCHRONIZE,
|
|---|
| 517 | FILE_ATTRIBUTE_NORMAL,
|
|---|
| 518 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|---|
| 519 | FILE_OPEN,
|
|---|
| 520 | FILE_DIRECTORY_FILE | FILE_OPEN_FOR_BACKUP_INTENT | FILE_SYNCHRONOUS_IO_NONALERT,
|
|---|
| 521 | OBJ_CASE_INSENSITIVE,
|
|---|
| 522 | &NameUniStr);
|
|---|
| 523 | if (hFile != INVALID_HANDLE_VALUE)
|
|---|
| 524 | {
|
|---|
| 525 | MY_FILE_ID_FULL_DIR_INFORMATION *pBuf;
|
|---|
| 526 | ULONG cbBuf = sizeof(*pBuf) + NameUniStr.MaximumLength + 1024;
|
|---|
| 527 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 528 | MY_NTSTATUS rcNt;
|
|---|
| 529 |
|
|---|
| 530 | pBuf = (MY_FILE_ID_FULL_DIR_INFORMATION *)alloca(cbBuf);
|
|---|
| 531 | Ios.u.Status = -1;
|
|---|
| 532 | Ios.Information = -1;
|
|---|
| 533 | rcNt = g_pfnNtQueryDirectoryFile(hFile, NULL, NULL, NULL, &Ios, pBuf, cbBuf,
|
|---|
| 534 | MyFileIdFullDirectoryInformation, FALSE, &NameUniStr, TRUE);
|
|---|
| 535 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 536 | rcNt = Ios.u.Status;
|
|---|
| 537 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 538 | {
|
|---|
| 539 | /*
|
|---|
| 540 | * Convert the data.
|
|---|
| 541 | */
|
|---|
| 542 | birdStatFillFromFileIdFullDirInfo(pStat, pBuf, pszPath);
|
|---|
| 543 |
|
|---|
| 544 | /* Get the serial number, reusing the buffer from above. */
|
|---|
| 545 | rcNt = birdQueryVolumeDeviceNumber(hFile, (MY_FILE_FS_VOLUME_INFORMATION *)pBuf, cbBuf, &pStat->st_dev);
|
|---|
| 546 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 547 | rc = 0;
|
|---|
| 548 | else
|
|---|
| 549 | rc = birdSetErrnoFromNt(rcNt);
|
|---|
| 550 | }
|
|---|
| 551 |
|
|---|
| 552 | birdFreeNtPath(&NameUniStr);
|
|---|
| 553 | birdCloseFile(hFile);
|
|---|
| 554 |
|
|---|
| 555 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 556 | return 0;
|
|---|
| 557 | birdSetErrnoFromNt(rcNt);
|
|---|
| 558 | }
|
|---|
| 559 | }
|
|---|
| 560 | rc = -1;
|
|---|
| 561 | }
|
|---|
| 562 |
|
|---|
| 563 | return rc;
|
|---|
| 564 | }
|
|---|
| 565 |
|
|---|
| 566 |
|
|---|
| 567 | /**
|
|---|
| 568 | * Implements UNIX fstat().
|
|---|
| 569 | */
|
|---|
| 570 | int birdStatOnFd(int fd, BirdStat_T *pStat)
|
|---|
| 571 | {
|
|---|
| 572 | int rc;
|
|---|
| 573 | HANDLE hFile = (HANDLE)_get_osfhandle(fd);
|
|---|
| 574 | if (hFile != INVALID_HANDLE_VALUE)
|
|---|
| 575 | {
|
|---|
| 576 | DWORD fFileType;
|
|---|
| 577 |
|
|---|
| 578 | birdResolveImports();
|
|---|
| 579 |
|
|---|
| 580 | SetLastError(NO_ERROR);
|
|---|
| 581 | fFileType = GetFileType(hFile) & ~FILE_TYPE_REMOTE;
|
|---|
| 582 | switch (fFileType)
|
|---|
| 583 | {
|
|---|
| 584 | case FILE_TYPE_DISK:
|
|---|
| 585 | rc = birdStatHandle(hFile, pStat, NULL);
|
|---|
| 586 | break;
|
|---|
| 587 |
|
|---|
| 588 | case FILE_TYPE_CHAR:
|
|---|
| 589 | case FILE_TYPE_PIPE:
|
|---|
| 590 | if (fFileType == FILE_TYPE_PIPE)
|
|---|
| 591 | pStat->st_mode = S_IFIFO | 0666;
|
|---|
| 592 | else
|
|---|
| 593 | pStat->st_mode = S_IFCHR | 0666;
|
|---|
| 594 | pStat->st_padding0[0] = 0;
|
|---|
| 595 | pStat->st_padding0[1] = 0;
|
|---|
| 596 | pStat->st_size = 0;
|
|---|
| 597 | pStat->st_atim.tv_sec = 0;
|
|---|
| 598 | pStat->st_atim.tv_nsec = 0;
|
|---|
| 599 | pStat->st_mtim.tv_sec = 0;
|
|---|
| 600 | pStat->st_mtim.tv_nsec = 0;
|
|---|
| 601 | pStat->st_ctim.tv_sec = 0;
|
|---|
| 602 | pStat->st_ctim.tv_nsec = 0;
|
|---|
| 603 | pStat->st_birthtim.tv_sec = 0;
|
|---|
| 604 | pStat->st_birthtim.tv_nsec = 0;
|
|---|
| 605 | pStat->st_ino = 0;
|
|---|
| 606 | pStat->st_dev = 0;
|
|---|
| 607 | pStat->st_rdev = 0;
|
|---|
| 608 | pStat->st_uid = 0;
|
|---|
| 609 | pStat->st_gid = 0;
|
|---|
| 610 | pStat->st_padding1[0] = 0;
|
|---|
| 611 | pStat->st_padding1[1] = 0;
|
|---|
| 612 | pStat->st_padding1[2] = 0;
|
|---|
| 613 | pStat->st_blksize = 512;
|
|---|
| 614 | pStat->st_blocks = 0;
|
|---|
| 615 | if (fFileType == FILE_TYPE_PIPE)
|
|---|
| 616 | {
|
|---|
| 617 | DWORD cbAvail;
|
|---|
| 618 | if (PeekNamedPipe(hFile, NULL, 0, NULL, &cbAvail, NULL))
|
|---|
| 619 | pStat->st_size = cbAvail;
|
|---|
| 620 | }
|
|---|
| 621 | rc = 0;
|
|---|
| 622 | break;
|
|---|
| 623 |
|
|---|
| 624 | case FILE_TYPE_UNKNOWN:
|
|---|
| 625 | default:
|
|---|
| 626 | if (GetLastError() == NO_ERROR)
|
|---|
| 627 | rc = birdSetErrnoToBadFileNo();
|
|---|
| 628 | else
|
|---|
| 629 | rc = birdSetErrnoFromWin32(GetLastError());
|
|---|
| 630 | break;
|
|---|
| 631 | }
|
|---|
| 632 | }
|
|---|
| 633 | else
|
|---|
| 634 | rc = -1;
|
|---|
| 635 | return rc;
|
|---|
| 636 | }
|
|---|
| 637 |
|
|---|
| 638 |
|
|---|
| 639 | /**
|
|---|
| 640 | * Special case that only gets the file size and nothing else.
|
|---|
| 641 | */
|
|---|
| 642 | int birdStatOnFdJustSize(int fd, __int64 *pcbFile)
|
|---|
| 643 | {
|
|---|
| 644 | int rc;
|
|---|
| 645 | HANDLE hFile = (HANDLE)_get_osfhandle(fd);
|
|---|
| 646 | if (hFile != INVALID_HANDLE_VALUE)
|
|---|
| 647 | {
|
|---|
| 648 | LARGE_INTEGER cbLocal;
|
|---|
| 649 | if (GetFileSizeEx(hFile, &cbLocal))
|
|---|
| 650 | {
|
|---|
| 651 | *pcbFile = cbLocal.QuadPart;
|
|---|
| 652 | rc = 0;
|
|---|
| 653 | }
|
|---|
| 654 | else
|
|---|
| 655 | {
|
|---|
| 656 | BirdStat_T Stat;
|
|---|
| 657 | rc = birdStatOnFd(fd, &Stat);
|
|---|
| 658 | if (rc == 0)
|
|---|
| 659 | *pcbFile = Stat.st_size;
|
|---|
| 660 | }
|
|---|
| 661 | }
|
|---|
| 662 | else
|
|---|
| 663 | rc = -1;
|
|---|
| 664 | return rc;
|
|---|
| 665 | }
|
|---|
| 666 |
|
|---|
| 667 |
|
|---|
| 668 | /**
|
|---|
| 669 | * Implements UNIX stat().
|
|---|
| 670 | */
|
|---|
| 671 | int birdStatFollowLink(const char *pszPath, BirdStat_T *pStat)
|
|---|
| 672 | {
|
|---|
| 673 | return birdStatInternal(pszPath, pStat, 1 /*fFollow*/);
|
|---|
| 674 | }
|
|---|
| 675 |
|
|---|
| 676 |
|
|---|
| 677 | /**
|
|---|
| 678 | * Implements UNIX lstat().
|
|---|
| 679 | */
|
|---|
| 680 | int birdStatOnLink(const char *pszPath, BirdStat_T *pStat)
|
|---|
| 681 | {
|
|---|
| 682 | return birdStatInternal(pszPath, pStat, 0 /*fFollow*/);
|
|---|
| 683 | }
|
|---|
| 684 |
|
|---|
| 685 |
|
|---|
| 686 | /**
|
|---|
| 687 | * Internal worker for birdStatModTimeOnly.
|
|---|
| 688 | */
|
|---|
| 689 | static int birdStatOnlyInternal(const char *pszPath, int fFollowLink, MY_FILE_BASIC_INFORMATION *pBasicInfo)
|
|---|
| 690 | {
|
|---|
| 691 | int rc;
|
|---|
| 692 | HANDLE hFile = birdOpenFile(pszPath,
|
|---|
| 693 | FILE_READ_ATTRIBUTES,
|
|---|
| 694 | FILE_ATTRIBUTE_NORMAL,
|
|---|
| 695 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|---|
| 696 | FILE_OPEN,
|
|---|
| 697 | FILE_OPEN_FOR_BACKUP_INTENT | (fFollowLink ? 0 : FILE_OPEN_REPARSE_POINT),
|
|---|
| 698 | OBJ_CASE_INSENSITIVE);
|
|---|
| 699 | if (hFile != INVALID_HANDLE_VALUE)
|
|---|
| 700 | {
|
|---|
| 701 | MY_NTSTATUS rcNt = 0;
|
|---|
| 702 | MY_IO_STATUS_BLOCK Ios;
|
|---|
| 703 | Ios.Information = 0;
|
|---|
| 704 | Ios.u.Status = -1;
|
|---|
| 705 |
|
|---|
| 706 | if (pBasicInfo)
|
|---|
| 707 | {
|
|---|
| 708 | rcNt = g_pfnNtQueryInformationFile(hFile, &Ios, pBasicInfo, sizeof(*pBasicInfo), MyFileBasicInformation);
|
|---|
| 709 | if (MY_NT_SUCCESS(rcNt))
|
|---|
| 710 | rcNt = Ios.u.Status;
|
|---|
| 711 | }
|
|---|
| 712 | birdCloseFile(hFile);
|
|---|
| 713 |
|
|---|
| 714 | if (!MY_NT_SUCCESS(rcNt))
|
|---|
| 715 | birdSetErrnoFromNt(rcNt);
|
|---|
| 716 | }
|
|---|
| 717 | else
|
|---|
| 718 | {
|
|---|
| 719 | //fprintf(stderr, "stat: %s -> %u\n", pszPath, GetLastError());
|
|---|
| 720 |
|
|---|
| 721 | /* On things like pagefile.sys we may get sharing violation. */
|
|---|
| 722 | if (GetLastError() == ERROR_SHARING_VIOLATION)
|
|---|
| 723 | {
|
|---|
| 724 | /** @todo Fall back on the parent directory enum if we run into a sharing
|
|---|
| 725 | * violation. */
|
|---|
| 726 | }
|
|---|
| 727 | rc = -1;
|
|---|
| 728 | }
|
|---|
| 729 | return rc;
|
|---|
| 730 | }
|
|---|
| 731 |
|
|---|
| 732 |
|
|---|
| 733 | /**
|
|---|
| 734 | * Special function for getting the modification time.
|
|---|
| 735 | */
|
|---|
| 736 | int birdStatModTimeOnly(const char *pszPath, BirdTimeSpec_T *pTimeSpec, int fFollowLink)
|
|---|
| 737 | {
|
|---|
| 738 | MY_FILE_BASIC_INFORMATION BasicInfo;
|
|---|
| 739 | int rc = birdStatOnlyInternal(pszPath, fFollowLink, &BasicInfo);
|
|---|
| 740 | if (!rc)
|
|---|
| 741 | birdNtTimeToTimeSpec(BasicInfo.LastWriteTime.QuadPart, pTimeSpec);
|
|---|
| 742 | return rc;
|
|---|
| 743 | }
|
|---|
| 744 |
|
|---|
| 745 |
|
|---|
| 746 |
|
|---|