From: Maotong Zhang zmtong1988@gmail.com
Example: start /d "c:\temp" notepad.exe --- programs/cmd/builtins.c | 130 ++++++++++++++++++++++++++++------------ 1 file changed, 93 insertions(+), 37 deletions(-)
diff --git a/programs/cmd/builtins.c b/programs/cmd/builtins.c index c2379598976..a235ce888e8 100644 --- a/programs/cmd/builtins.c +++ b/programs/cmd/builtins.c @@ -3304,6 +3304,7 @@ RETURN_CODE WCMD_start(WCHAR *args) WCHAR *cmdline, *cmdline_params; STARTUPINFOW st; PROCESS_INFORMATION pi; + WCHAR current_dir[MAX_PATH] = {0};
GetSystemDirectoryW( file, MAX_PATH ); lstrcatW(file, L"\start.exe"); @@ -3313,43 +3314,43 @@ RETURN_CODE WCMD_start(WCHAR *args) cmdline_params = cmdline + lstrlenW(cmdline);
/* The start built-in has some special command-line parsing properties - * which will be outlined here. - * - * both '\t' and ' ' are argument separators - * '/' has a special double role as both separator and switch prefix, e.g. - * - * > start /low/i - * or - * > start "title"/i - * - * are valid ways to pass multiple options to start. In the latter case - * '/i' is not a part of the title but parsed as a switch. - * - * However, '=', ';' and ',' are not separators: - * > start "deus"=ex,machina - * - * will in fact open a console titled 'deus=ex,machina' - * - * The title argument parsing code is only interested in quotes themselves, - * it does not respect escaping of any kind and all quotes are dropped - * from the resulting title, therefore: - * - * > start """ hello"/low - * - * actually opens a console titled '\ hello' with low priorities. - * - * To not break compatibility with wine programs relying on - * wine's separate 'start.exe', this program's peculiar console - * title parsing is actually implemented in 'cmd.exe' which is the - * application native Windows programs will use to invoke 'start'. - * - * WCMD_parameter_with_delims will take care of everything for us. - */ + * which will be outlined here. + * + * both '\t' and ' ' are argument separators + * '/' has a special double role as both separator and switch prefix, e.g. + * + * > start /low/i + * or + * > start "title"/i + * + * are valid ways to pass multiple options to start. In the latter case + * '/i' is not a part of the title but parsed as a switch. + * + * However, '=', ';' and ',' are not separators: + * > start "deus"=ex,machina + * + * will in fact open a console titled 'deus=ex,machina' + * + * The title argument parsing code is only interested in quotes themselves, + * it does not respect escaping of any kind and all quotes are dropped + * from the resulting title, therefore: + * + * > start """ hello"/low + * + * actually opens a console titled '\ hello' with low priorities. + * + * To not break compatibility with wine programs relying on + * wine's separate 'start.exe', this program's peculiar console + * title parsing is actually implemented in 'cmd.exe' which is the + * application native Windows programs will use to invoke 'start'. + * + * WCMD_parameter_with_delims will take care of everything for us. + */ /* FIXME: using an external start.exe has several caveats: - * - cannot discriminate syntax error in arguments from child's return code - * - need to access start.exe's child to get its running state - * (not start.exe itself) - */ + * - cannot discriminate syntax error in arguments from child's return code + * - need to access start.exe's child to get its running state + * (not start.exe itself) + */ have_title = FALSE; for (argno=0; ; argno++) { WCHAR *thisArg, *argN; @@ -3361,6 +3362,61 @@ RETURN_CODE WCMD_start(WCHAR *args) if (!argN) break;
+ if (wcsicmp(thisArg, L"D") == 0) + { + WCHAR *dirArg, *nextN; + DWORD attr; + dirArg = WCMD_parameter_with_delims(args, ++argno, &nextN, FALSE, FALSE, L" \t/"); + if (dirArg) + { + lstrcpynW(current_dir, dirArg, MAX_PATH); + attr = GetFileAttributesW(current_dir); + if (attr == INVALID_FILE_ATTRIBUTES || !(attr & FILE_ATTRIBUTE_DIRECTORY)) + { + WCHAR tmpPath[MAX_PATH]; + WCHAR *pSlash; + + lstrcpynW(tmpPath, current_dir, MAX_PATH); + pSlash = tmpPath; + + if (tmpPath[0] && tmpPath[1] == L':' && tmpPath[2] == L'\') + pSlash = tmpPath + 3; + else if (wcsncmp(tmpPath, L"\\?\", 4) == 0 && tmpPath[5] == L':' && tmpPath[6] == L'\') + pSlash = tmpPath + 7; + + for (; *pSlash; pSlash++) + { + if (*pSlash == L'\') + { + *pSlash = 0; + if (GetFileAttributesW(tmpPath) == INVALID_FILE_ATTRIBUTES) + { + if (!CreateDirectoryW(tmpPath, NULL) && GetLastError() != ERROR_ALREADY_EXISTS) + { + WCMD_output_asis(L"start: failed to create directory\n"); + return ERROR_PATH_NOT_FOUND;\ + } + } + *pSlash = L'\'; + } + else if (*(pSlash + 1) == L'\0') + { + if (GetFileAttributesW(tmpPath) == INVALID_FILE_ATTRIBUTES) + { + if (!CreateDirectoryW(tmpPath, NULL) && GetLastError() != ERROR_ALREADY_EXISTS) + { + WCMD_output_asis(L"start: failed to create directory\n"); + return ERROR_PATH_NOT_FOUND; + } + } + } + } + } + continue; + } + + } + /* Found the title */ if (argN[0] == '"') { TRACE("detected console title: %s\n", wine_dbgstr_w(thisArg)); @@ -3401,7 +3457,7 @@ RETURN_CODE WCMD_start(WCHAR *args) memset( &st, 0, sizeof(STARTUPINFOW) ); st.cb = sizeof(STARTUPINFOW);
- if (CreateProcessW( file, cmdline, NULL, NULL, TRUE, 0, NULL, NULL, &st, &pi )) + if (CreateProcessW( file, cmdline, NULL, NULL, TRUE, 0, NULL, current_dir[0] ? current_dir : NULL, &st, &pi )) { DWORD exit_code; WaitForSingleObject( pi.hProcess, INFINITE );