[PATCH v3 0/1] MR246: Allow renaming a file/directory to a different case of itself
-- v3: ntdll: Allow renaming a file/directory to a different case of itself. https://gitlab.winehq.org/wine/wine/-/merge_requests/246
From: Gabriel Ivăncescu <gabrielopcode(a)gmail.com> Renaming a file or directory from e.g. foobar to FooBar (or any other case change) should work, like on Windows, instead of being a no-op. Clobbering an existing file must also respect the new case. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46203 Signed-off-by: Gabriel Ivăncescu <gabrielopcode(a)gmail.com> --- dlls/kernel32/tests/file.c | 4 +- dlls/ntdll/tests/file.c | 4 +- dlls/ntdll/unix/file.c | 58 +++++++++++++++++++- server/fd.c | 108 ++++++++++++++++++++++++++----------- server/protocol.def | 2 + 5 files changed, 138 insertions(+), 38 deletions(-) diff --git a/dlls/kernel32/tests/file.c b/dlls/kernel32/tests/file.c index 73ae75d52af..2ac876692bf 100644 --- a/dlls/kernel32/tests/file.c +++ b/dlls/kernel32/tests/file.c @@ -2032,7 +2032,7 @@ static void test_MoveFileA(void) ok(hfile != INVALID_HANDLE_VALUE, "FindFirstFileA: failed, error %ld\n", GetLastError()); if (hfile != INVALID_HANDLE_VALUE) { - todo_wine ok(!lstrcmpA(strrchr(tempdir, '\\') + 1, find_data.cFileName), + ok(!lstrcmpA(strrchr(tempdir, '\\') + 1, find_data.cFileName), "MoveFile failed to change casing on same file: got %s\n", find_data.cFileName); } CloseHandle(hfile); @@ -2077,7 +2077,7 @@ static void test_MoveFileA(void) ok(hfile != INVALID_HANDLE_VALUE, "FindFirstFileA: failed, error %ld\n", GetLastError()); if (hfile != INVALID_HANDLE_VALUE) { - todo_wine ok(!lstrcmpA(strrchr(tempdir, '\\') + 1, find_data.cFileName), + ok(!lstrcmpA(strrchr(tempdir, '\\') + 1, find_data.cFileName), "MoveFile failed to change casing on same directory: got %s\n", find_data.cFileName); } CloseHandle(hfile); diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c index 6186afdfb63..08b6f29afc4 100644 --- a/dlls/ntdll/tests/file.c +++ b/dlls/ntdll/tests/file.c @@ -2308,7 +2308,7 @@ static void test_file_link_information(void) ok(handle != INVALID_HANDLE_VALUE, "FindFirstFileW: failed, error %ld\n", GetLastError()); if (handle != INVALID_HANDLE_VALUE) { - todo_wine ok(!lstrcmpW(wcsrchr(newpath, '\\') + 1, find_data.cFileName), + ok(!lstrcmpW(wcsrchr(newpath, '\\') + 1, find_data.cFileName), "Link did not change casing on existing target file: got %s\n", wine_dbgstr_w(find_data.cFileName)); } @@ -2893,7 +2893,7 @@ static void test_file_link_information(void) ok(handle != INVALID_HANDLE_VALUE, "FindFirstFileW: failed, error %ld\n", GetLastError()); if (handle != INVALID_HANDLE_VALUE) { - todo_wine ok(!lstrcmpW(wcsrchr(oldpath, '\\') + 1, find_data.cFileName), + ok(!lstrcmpW(wcsrchr(oldpath, '\\') + 1, find_data.cFileName), "Link did not change casing on same file: got %s\n", wine_dbgstr_w(find_data.cFileName)); } diff --git a/dlls/ntdll/unix/file.c b/dlls/ntdll/unix/file.c index 7a724c87025..2668b6c6179 100644 --- a/dlls/ntdll/unix/file.c +++ b/dlls/ntdll/unix/file.c @@ -3819,6 +3819,52 @@ NTSTATUS WINAPI wine_unix_to_nt_file_name( const char *name, WCHAR *buffer, ULON } +/*********************************************************************** + * get_filename_case + * + * Get the unix filename, with the case from NT name's last component. + */ +static char *get_filename_case( const OBJECT_ATTRIBUTES *attr ) +{ + const WCHAR *p, *nt_filename = attr->ObjectName->Buffer; + int len = attr->ObjectName->Length / sizeof(WCHAR); + char *file_case; + + /* skip the device and prefix (allow slashes for unix namespace) */ + if (!attr->RootDirectory) + { + int pos = get_dos_prefix_len( attr->ObjectName ); + while (pos < len) + { + WCHAR c = nt_filename[pos++]; + if (c == '\\' || c == '/') break; + } + nt_filename += pos; + len -= pos; + } + + /* strip off trailing backslashes */ + for (; len; len--) + if (nt_filename[len - 1] != '\\' && nt_filename[len - 1] != '/') + break; + + /* get the last component */ + for (p = nt_filename + len; p != nt_filename; p--) + if (p[-1] == '\\' || p[-1] == '/') + break; + len -= p - nt_filename; + nt_filename = p; + + if ((file_case = malloc( len * 3 + 1 ))) + { + len = ntdll_wcstoumbs( nt_filename, len, file_case, len * 3, TRUE ); + if (len < 0 || len > MAX_DIR_ENTRY_LEN) len = 0; + file_case[len] = 0; + } + return file_case; +} + + /*********************************************************************** * get_full_path * @@ -4759,8 +4805,8 @@ NTSTATUS WINAPI NtSetInformationFile( HANDLE handle, IO_STATUS_BLOCK *io, { FILE_RENAME_INFORMATION *info = ptr; UNICODE_STRING name_str, redir; + char *unix_name, *file_case; OBJECT_ATTRIBUTES attr; - char *unix_name; name_str.Buffer = info->FileName; name_str.Length = info->FileNameLength; @@ -4771,20 +4817,24 @@ NTSTATUS WINAPI NtSetInformationFile( HANDLE handle, IO_STATUS_BLOCK *io, status = nt_to_unix_file_name( &attr, &unix_name, FILE_OPEN_IF ); if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE) { + file_case = get_filename_case( &attr ); SERVER_START_REQ( set_fd_name_info ) { req->handle = wine_server_obj_handle( handle ); req->rootdir = wine_server_obj_handle( attr.RootDirectory ); req->namelen = attr.ObjectName->Length; + req->caselen = file_case ? strlen( file_case ) : 0; req->link = FALSE; req->replace = info->ReplaceIfExists; wine_server_add_data( req, attr.ObjectName->Buffer, attr.ObjectName->Length ); + wine_server_add_data( req, file_case, req->caselen ); wine_server_add_data( req, unix_name, strlen(unix_name) ); status = wine_server_call( req ); } SERVER_END_REQ; free( unix_name ); + free( file_case ); } free( redir.Buffer ); } @@ -4796,8 +4846,8 @@ NTSTATUS WINAPI NtSetInformationFile( HANDLE handle, IO_STATUS_BLOCK *io, { FILE_LINK_INFORMATION *info = ptr; UNICODE_STRING name_str, redir; + char *unix_name, *file_case; OBJECT_ATTRIBUTES attr; - char *unix_name; name_str.Buffer = info->FileName; name_str.Length = info->FileNameLength; @@ -4808,20 +4858,24 @@ NTSTATUS WINAPI NtSetInformationFile( HANDLE handle, IO_STATUS_BLOCK *io, status = nt_to_unix_file_name( &attr, &unix_name, FILE_OPEN_IF ); if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE) { + file_case = get_filename_case( &attr ); SERVER_START_REQ( set_fd_name_info ) { req->handle = wine_server_obj_handle( handle ); req->rootdir = wine_server_obj_handle( attr.RootDirectory ); req->namelen = attr.ObjectName->Length; + req->caselen = file_case ? strlen( file_case ) : 0; req->link = TRUE; req->replace = info->ReplaceIfExists; wine_server_add_data( req, attr.ObjectName->Buffer, attr.ObjectName->Length ); + wine_server_add_data( req, file_case, req->caselen ); wine_server_add_data( req, unix_name, strlen(unix_name) ); status = wine_server_call( req ); } SERVER_END_REQ; free( unix_name ); + free( file_case ); } free( redir.Buffer ); } diff --git a/server/fd.c b/server/fd.c index eaebe044f37..3225024bcc9 100644 --- a/server/fd.c +++ b/server/fd.c @@ -2531,11 +2531,14 @@ static void set_fd_disposition( struct fd *fd, int unlink ) /* set new name for the fd */ static void set_fd_name( struct fd *fd, struct fd *root, const char *nameptr, data_size_t len, - struct unicode_str nt_name, int create_link, int replace ) + const char *file_case, data_size_t caselen, struct unicode_str nt_name, + int create_link, int replace ) { + size_t pathlen = 0, filenamelen; struct inode *inode; struct stat st, st2; - char *name; + int different_case; + char *name, *p; if (!fd->inode || !fd->unix_name) { @@ -2569,6 +2572,30 @@ static void set_fd_name( struct fd *fd, struct fd *root, const char *nameptr, da name = combined_name; } + /* get path len up to last component, ignoring trailing slashes */ + for (p = name; *p;) + if (*p++ == '/' && *p) + pathlen = p - name; + + /* get filename ptr and len, without trailing slashes */ + filenamelen = p - name - pathlen; + p = name + pathlen; + while (filenamelen && p[filenamelen - 1] == '/') + filenamelen--; + + different_case = caselen && (filenamelen != caselen || memcmp( p, file_case, caselen )); + + if (filenamelen < caselen) + { + p = realloc( name, pathlen + caselen + 1 ); + if (!p) + { + set_error( STATUS_NO_MEMORY ); + goto failed; + } + name = p; + } + /* when creating a hard link, source cannot be a dir */ if (create_link && !fstat( fd->unix_fd, &st ) && S_ISDIR( st.st_mode )) { @@ -2581,47 +2608,61 @@ static void set_fd_name( struct fd *fd, struct fd *root, const char *nameptr, da if (!fstat( fd->unix_fd, &st2 ) && st.st_ino == st2.st_ino && st.st_dev == st2.st_dev) { if (create_link && !replace) set_error( STATUS_OBJECT_NAME_COLLISION ); - free( name ); - return; - } + if (!different_case) + { + free( name ); + return; + } - if (!replace) - { - set_error( STATUS_OBJECT_NAME_COLLISION ); - goto failed; + /* creating a link with a different case on itself renames the file */ + create_link = 0; } - - /* can't replace directories or special files */ - if (!S_ISREG( st.st_mode )) + else { - set_error( STATUS_ACCESS_DENIED ); - goto failed; - } + if (!replace) + { + set_error( STATUS_OBJECT_NAME_COLLISION ); + goto failed; + } - /* can't replace an opened file */ - if ((inode = get_inode( st.st_dev, st.st_ino, -1 ))) - { - int is_empty = list_empty( &inode->open ); - release_object( inode ); - if (!is_empty) + /* can't replace directories or special files */ + if (!S_ISREG( st.st_mode )) { set_error( STATUS_ACCESS_DENIED ); goto failed; } - } - /* link() expects that the target doesn't exist */ - /* rename() cannot replace files with directories */ - if (create_link || S_ISDIR( st2.st_mode )) - { - if (unlink( name )) + /* can't replace an opened file */ + if ((inode = get_inode( st.st_dev, st.st_ino, -1 ))) { - file_set_error(); - goto failed; + int is_empty = list_empty( &inode->open ); + release_object( inode ); + if (!is_empty) + { + set_error( STATUS_ACCESS_DENIED ); + goto failed; + } + } + + /* link() expects that the target doesn't exist */ + /* rename() cannot replace files with directories */ + if (create_link || S_ISDIR( st2.st_mode ) || different_case) + { + if (unlink( name )) + { + file_set_error(); + goto failed; + } } } } + if (different_case) + { + memcpy( name + pathlen, file_case, caselen ); + name[pathlen + caselen] = 0; + } + if (create_link) { if (link( fd->unix_name, name )) @@ -2963,16 +3004,19 @@ DECL_HANDLER(set_fd_disp_info) /* set fd name information */ DECL_HANDLER(set_fd_name_info) { + const char *fullname, *file_case; struct fd *fd, *root_fd = NULL; struct unicode_str nt_name; - if (req->namelen > get_req_data_size()) + if (req->namelen > get_req_data_size() || get_req_data_size() - req->namelen < req->caselen) { set_error( STATUS_INVALID_PARAMETER ); return; } nt_name.str = get_req_data(); nt_name.len = (req->namelen / sizeof(WCHAR)) * sizeof(WCHAR); + file_case = (const char *)get_req_data() + req->namelen; + fullname = file_case + req->caselen; if (req->rootdir) { @@ -2986,8 +3030,8 @@ DECL_HANDLER(set_fd_name_info) if ((fd = get_handle_fd_obj( current->process, req->handle, 0 ))) { - set_fd_name( fd, root_fd, (const char *)get_req_data() + req->namelen, - get_req_data_size() - req->namelen, nt_name, req->link, req->replace ); + set_fd_name( fd, root_fd, fullname, (const char *)get_req_data() + get_req_data_size() - fullname, + file_case, req->caselen, nt_name, req->link, req->replace ); release_object( fd ); } if (root_fd) release_object( root_fd ); diff --git a/server/protocol.def b/server/protocol.def index c857f72ce68..956e5abb594 100644 --- a/server/protocol.def +++ b/server/protocol.def @@ -3609,9 +3609,11 @@ struct handle_info obj_handle_t handle; /* handle to a file or directory */ obj_handle_t rootdir; /* root directory */ data_size_t namelen; /* length of NT name in bytes */ + data_size_t caselen; /* length of the actual case filename */ int link; /* link instead of renaming */ int replace; /* replace an existing file? */ VARARG(name,unicode_str,namelen); /* NT name */ + VARARG(actual_case,string,caselen); /* new file name's actual case (without path) */ VARARG(filename,string); /* new file name */ @END -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/246
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Gabriel Ivăncescu