Module: wine Branch: master Commit: c72de7bce2c4c5bda08caa61f140fb4a5358997f URL: http://source.winehq.org/git/wine.git/?a=commit;h=c72de7bce2c4c5bda08caa61f1...
Author: Rob Shearman rob@codeweavers.com Date: Thu Feb 7 12:43:25 2008 +0000
kernel32: Implement ReplaceFileW.
Based on a patch by Erich Hoover.
---
dlls/kernel32/file.c | 163 ++++++++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 158 insertions(+), 5 deletions(-)
diff --git a/dlls/kernel32/file.c b/dlls/kernel32/file.c index acc762b..a5da6c6 100644 --- a/dlls/kernel32/file.c +++ b/dlls/kernel32/file.c @@ -1524,14 +1524,167 @@ BOOL WINAPI DeleteFileA( LPCSTR path ) * ReplaceFileW (KERNEL32.@) * ReplaceFile (KERNEL32.@) */ -BOOL WINAPI ReplaceFileW(LPCWSTR lpReplacedFileName,LPCWSTR lpReplacementFileName, +BOOL WINAPI ReplaceFileW(LPCWSTR lpReplacedFileName, LPCWSTR lpReplacementFileName, LPCWSTR lpBackupFileName, DWORD dwReplaceFlags, LPVOID lpExclude, LPVOID lpReserved) { - FIXME("(%s,%s,%s,%08x,%p,%p) stub\n",debugstr_w(lpReplacedFileName),debugstr_w(lpReplacementFileName), - debugstr_w(lpBackupFileName),dwReplaceFlags,lpExclude,lpReserved); - SetLastError(ERROR_UNABLE_TO_MOVE_REPLACEMENT); - return FALSE; + UNICODE_STRING nt_replaced_name, nt_replacement_name; + ANSI_STRING unix_replaced_name, unix_replacement_name, unix_backup_name; + HANDLE hReplaced = NULL, hReplacement = NULL, hBackup = NULL; + DWORD error = ERROR_SUCCESS; + UINT replaced_flags; + BOOL ret = FALSE; + NTSTATUS status; + IO_STATUS_BLOCK io; + OBJECT_ATTRIBUTES attr; + + if (dwReplaceFlags) + FIXME("Ignoring flags %x\n", dwReplaceFlags); + + /* First two arguments are mandatory */ + if (!lpReplacedFileName || !lpReplacementFileName) + { + SetLastError(ERROR_INVALID_PARAMETER); + return FALSE; + } + + unix_replaced_name.Buffer = NULL; + unix_replacement_name.Buffer = NULL; + unix_backup_name.Buffer = NULL; + + attr.Length = sizeof(attr); + attr.RootDirectory = 0; + attr.Attributes = OBJ_CASE_INSENSITIVE; + attr.ObjectName = NULL; + attr.SecurityDescriptor = NULL; + attr.SecurityQualityOfService = NULL; + + /* Open the "replaced" file for reading and writing */ + if (!(RtlDosPathNameToNtPathName_U(lpReplacedFileName, &nt_replaced_name, NULL, NULL))) + { + error = ERROR_PATH_NOT_FOUND; + goto fail; + } + replaced_flags = lpBackupFileName ? FILE_OPEN : FILE_OPEN_IF; + attr.ObjectName = &nt_replaced_name; + status = NtOpenFile(&hReplaced, GENERIC_READ|GENERIC_WRITE|DELETE|SYNCHRONIZE, + &attr, &io, + FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, + FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE); + if (status == STATUS_SUCCESS) + status = wine_nt_to_unix_file_name(&nt_replaced_name, &unix_replaced_name, replaced_flags, FALSE); + RtlFreeUnicodeString(&nt_replaced_name); + if (status != STATUS_SUCCESS) + { + if (status == STATUS_OBJECT_NAME_NOT_FOUND) + error = ERROR_FILE_NOT_FOUND; + else + error = ERROR_UNABLE_TO_REMOVE_REPLACED; + goto fail; + } + + /* + * Open the replacement file for reading, writing, and deleting + * (writing and deleting are needed when finished) + */ + if (!(RtlDosPathNameToNtPathName_U(lpReplacementFileName, &nt_replacement_name, NULL, NULL))) + { + error = ERROR_PATH_NOT_FOUND; + goto fail; + } + attr.ObjectName = &nt_replacement_name; + status = NtOpenFile(&hReplacement, + GENERIC_READ|GENERIC_WRITE|DELETE|WRITE_DAC|SYNCHRONIZE, + &attr, &io, 0, + FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE); + if (status == STATUS_SUCCESS) + status = wine_nt_to_unix_file_name(&nt_replacement_name, &unix_replacement_name, FILE_OPEN, FALSE); + RtlFreeUnicodeString(&nt_replacement_name); + if (status != STATUS_SUCCESS) + { + error = RtlNtStatusToDosError(status); + goto fail; + } + + /* If the user wants a backup then that needs to be performed first */ + if (lpBackupFileName) + { + UNICODE_STRING nt_backup_name; + FILE_BASIC_INFORMATION replaced_info; + + /* Obtain the file attributes from the "replaced" file */ + status = NtQueryInformationFile(hReplaced, &io, &replaced_info, + sizeof(replaced_info), + FileBasicInformation); + if (status != STATUS_SUCCESS) + { + error = RtlNtStatusToDosError(status); + goto fail; + } + + if (!(RtlDosPathNameToNtPathName_U(lpBackupFileName, &nt_backup_name, NULL, NULL))) + { + error = ERROR_PATH_NOT_FOUND; + goto fail; + } + attr.ObjectName = &nt_backup_name; + /* Open the backup with permissions to write over it */ + status = NtCreateFile(&hBackup, GENERIC_WRITE, + &attr, &io, NULL, replaced_info.FileAttributes, + FILE_SHARE_WRITE, FILE_OPEN_IF, + FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE, + NULL, 0); + if (status == STATUS_SUCCESS) + status = wine_nt_to_unix_file_name(&nt_backup_name, &unix_backup_name, FILE_OPEN_IF, FALSE); + if (status != STATUS_SUCCESS) + { + error = RtlNtStatusToDosError(status); + goto fail; + } + + /* If an existing backup exists then copy over it */ + if (rename(unix_replaced_name.Buffer, unix_backup_name.Buffer) == -1) + { + error = ERROR_UNABLE_TO_REMOVE_REPLACED; /* is this correct? */ + goto fail; + } + } + + /* + * Now that the backup has been performed (if requested), copy the replacement + * into place + */ + if (rename(unix_replacement_name.Buffer, unix_replaced_name.Buffer) == -1) + { + if (errno == EACCES) + { + /* Inappropriate permissions on "replaced", rename will fail */ + error = ERROR_UNABLE_TO_REMOVE_REPLACED; + goto fail; + } + /* on failure we need to indicate whether a backup was made */ + if (!lpBackupFileName) + error = ERROR_UNABLE_TO_MOVE_REPLACEMENT; + else + error = ERROR_UNABLE_TO_MOVE_REPLACEMENT_2; + goto fail; + } + /* Success! */ + ret = TRUE; + + /* Perform resource cleanup */ +fail: + if (hBackup) CloseHandle(hBackup); + if (hReplaced) CloseHandle(hReplaced); + if (hReplacement) CloseHandle(hReplacement); + RtlFreeAnsiString(&unix_backup_name); + RtlFreeAnsiString(&unix_replacement_name); + RtlFreeAnsiString(&unix_replaced_name); + + /* If there was an error, set the error code */ + if(!ret) + SetLastError(error); + return ret; }
-
Alexandre Julliard