2 * Process environment management
4 * Copyright 1996, 1998 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
30 #define WIN32_NO_STATUS
34 #include "wine/library.h"
36 #include "wine/unicode.h"
37 #include "wine/debug.h"
39 #include "kernel_private.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(environ);
44 * - contrary to Microsoft docs, the environment strings do not appear
45 * to be sorted on Win95 (although they are on NT); so we don't bother
46 * to sort them either.
49 static STARTUPINFOW startup_infoW;
50 static STARTUPINFOA startup_infoA;
53 /***********************************************************************
54 * GetCommandLineA (KERNEL32.@)
56 * WARNING: there's a Windows incompatibility lurking here !
57 * Win32s always includes the full path of the program file,
58 * whereas Windows NT only returns the full file path plus arguments
59 * in case the program has been started with a full path.
60 * Win9x seems to have inherited NT behaviour.
62 * Note that both Start Menu Execute and Explorer start programs with
63 * fully specified quoted app file paths, which is why probably the only case
64 * where you'll see single file names is in case of direct launch
65 * via CreateProcess or WinExec.
67 * Perhaps we should take care of Win3.1 programs here (Win32s "feature").
69 * References: MS KB article q102762.txt (special Win32s handling)
71 LPSTR WINAPI GetCommandLineA(void)
73 static char *cmdlineA; /* ASCII command line */
75 if (!cmdlineA) /* make an ansi version if we don't have it */
80 cmdlineA = (RtlUnicodeStringToAnsiString( &ansi, &NtCurrentTeb()->Peb->ProcessParameters->CommandLine, TRUE) == STATUS_SUCCESS) ?
87 /***********************************************************************
88 * GetCommandLineW (KERNEL32.@)
90 LPWSTR WINAPI GetCommandLineW(void)
92 return NtCurrentTeb()->Peb->ProcessParameters->CommandLine.Buffer;
96 /***********************************************************************
97 * GetEnvironmentStringsA (KERNEL32.@)
98 * GetEnvironmentStrings (KERNEL32.@)
100 LPSTR WINAPI GetEnvironmentStringsA(void)
110 ptrW = NtCurrentTeb()->Peb->ProcessParameters->Environment;
113 slen = strlenW(ptrW) + 1;
114 len += WideCharToMultiByte( CP_ACP, 0, ptrW, slen, NULL, 0, NULL, NULL );
118 if ((ret = HeapAlloc( GetProcessHeap(), 0, len )) != NULL)
120 ptrW = NtCurrentTeb()->Peb->ProcessParameters->Environment;
124 slen = strlenW(ptrW) + 1;
125 WideCharToMultiByte( CP_ACP, 0, ptrW, slen, ptrA, len, NULL, NULL );
127 ptrA += strlen(ptrA) + 1;
137 /***********************************************************************
138 * GetEnvironmentStringsW (KERNEL32.@)
140 LPWSTR WINAPI GetEnvironmentStringsW(void)
142 return NtCurrentTeb()->Peb->ProcessParameters->Environment;
146 /***********************************************************************
147 * FreeEnvironmentStringsA (KERNEL32.@)
149 BOOL WINAPI FreeEnvironmentStringsA( LPSTR ptr )
151 return HeapFree( GetProcessHeap(), 0, ptr );
155 /***********************************************************************
156 * FreeEnvironmentStringsW (KERNEL32.@)
158 BOOL WINAPI FreeEnvironmentStringsW( LPWSTR ptr )
164 /***********************************************************************
165 * GetEnvironmentVariableA (KERNEL32.@)
167 DWORD WINAPI GetEnvironmentVariableA( LPCSTR name, LPSTR value, DWORD size )
169 UNICODE_STRING us_name;
175 SetLastError(ERROR_ENVVAR_NOT_FOUND);
179 if (!(valueW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR))))
182 RtlCreateUnicodeStringFromAsciiz( &us_name, name );
184 ret = GetEnvironmentVariableW( us_name.Buffer, valueW, size);
185 if (ret && ret < size)
187 WideCharToMultiByte( CP_ACP, 0, valueW, ret + 1, value, size, NULL, NULL );
189 /* this is needed to tell, with 0 as a return value, the difference between:
190 * - an error (GetLastError() != 0)
191 * - returning an empty string (in this case, we need to update the buffer)
193 if (ret == 0 && size && GetLastError() == 0)
196 RtlFreeUnicodeString( &us_name );
197 HeapFree(GetProcessHeap(), 0, valueW);
203 /***********************************************************************
204 * GetEnvironmentVariableW (KERNEL32.@)
206 DWORD WINAPI GetEnvironmentVariableW( LPCWSTR name, LPWSTR val, DWORD size )
208 UNICODE_STRING us_name;
209 UNICODE_STRING us_value;
213 TRACE("(%s %p %u)\n", debugstr_w(name), val, size);
217 SetLastError(ERROR_ENVVAR_NOT_FOUND);
221 RtlInitUnicodeString(&us_name, name);
223 us_value.MaximumLength = (size ? size - 1 : 0) * sizeof(WCHAR);
224 us_value.Buffer = val;
226 status = RtlQueryEnvironmentVariable_U(NULL, &us_name, &us_value);
227 len = us_value.Length / sizeof(WCHAR);
228 if (status != STATUS_SUCCESS)
230 SetLastError( RtlNtStatusToDosError(status) );
231 return (status == STATUS_BUFFER_TOO_SMALL) ? len + 1 : 0;
233 if (size) val[len] = '\0';
235 return us_value.Length / sizeof(WCHAR);
239 /***********************************************************************
240 * SetEnvironmentVariableA (KERNEL32.@)
242 BOOL WINAPI SetEnvironmentVariableA( LPCSTR name, LPCSTR value )
244 UNICODE_STRING us_name;
249 SetLastError(ERROR_ENVVAR_NOT_FOUND);
253 RtlCreateUnicodeStringFromAsciiz( &us_name, name );
256 UNICODE_STRING us_value;
258 RtlCreateUnicodeStringFromAsciiz( &us_value, value );
259 ret = SetEnvironmentVariableW( us_name.Buffer, us_value.Buffer );
260 RtlFreeUnicodeString( &us_value );
262 else ret = SetEnvironmentVariableW( us_name.Buffer, NULL );
264 RtlFreeUnicodeString( &us_name );
270 /***********************************************************************
271 * SetEnvironmentVariableW (KERNEL32.@)
273 BOOL WINAPI SetEnvironmentVariableW( LPCWSTR name, LPCWSTR value )
275 UNICODE_STRING us_name;
278 TRACE("(%s %s)\n", debugstr_w(name), debugstr_w(value));
282 SetLastError(ERROR_ENVVAR_NOT_FOUND);
286 RtlInitUnicodeString(&us_name, name);
289 UNICODE_STRING us_value;
291 RtlInitUnicodeString(&us_value, value);
292 status = RtlSetEnvironmentVariable(NULL, &us_name, &us_value);
294 else status = RtlSetEnvironmentVariable(NULL, &us_name, NULL);
296 if (status != STATUS_SUCCESS)
298 SetLastError( RtlNtStatusToDosError(status) );
305 /***********************************************************************
306 * ExpandEnvironmentStringsA (KERNEL32.@)
308 * See ExpandEnvironmentStringsW.
310 * Note: overlapping buffers are not supported; this is how it should be.
311 * FIXME: return value is wrong for MBCS
313 DWORD WINAPI ExpandEnvironmentStringsA( LPCSTR src, LPSTR dst, DWORD count )
315 UNICODE_STRING us_src;
319 RtlCreateUnicodeStringFromAsciiz( &us_src, src );
322 if (!(dstW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
324 ret = ExpandEnvironmentStringsW( us_src.Buffer, dstW, count);
326 WideCharToMultiByte( CP_ACP, 0, dstW, ret, dst, count, NULL, NULL );
328 else ret = ExpandEnvironmentStringsW( us_src.Buffer, NULL, 0);
330 RtlFreeUnicodeString( &us_src );
331 HeapFree(GetProcessHeap(), 0, dstW);
337 /***********************************************************************
338 * ExpandEnvironmentStringsW (KERNEL32.@)
340 * Replaces references to environment variables of the form '%EnvVar%'
341 * by their value. If the environment variable does not exist, then the
342 * reference is left as is.
345 * src [I] The string to be expanded.
346 * dst [O] The buffer in which to put the expanded string.
347 * len [I] The buffer size, in characters.
350 * The number of characters copied into the buffer. If the buffer is
351 * too small, then the required buffer size, in characters including the
352 * trailing '\0', is returned.
353 * If the function fails for some other reason, then it returns 0.
355 DWORD WINAPI ExpandEnvironmentStringsW( LPCWSTR src, LPWSTR dst, DWORD len )
357 UNICODE_STRING us_src;
358 UNICODE_STRING us_dst;
362 TRACE("(%s %p %u)\n", debugstr_w(src), dst, len);
364 RtlInitUnicodeString(&us_src, src);
366 /* make sure we don't overflow the maximum UNICODE_STRING size */
371 us_dst.MaximumLength = len * sizeof(WCHAR);
375 status = RtlExpandEnvironmentStrings_U(NULL, &us_src, &us_dst, &res);
376 res /= sizeof(WCHAR);
377 if (status != STATUS_SUCCESS)
379 SetLastError( RtlNtStatusToDosError(status) );
380 if (status != STATUS_BUFFER_TOO_SMALL) return 0;
381 if (len && dst) dst[len - 1] = '\0';
388 /***********************************************************************
389 * GetStdHandle (KERNEL32.@)
391 HANDLE WINAPI GetStdHandle( DWORD std_handle )
395 case STD_INPUT_HANDLE: return NtCurrentTeb()->Peb->ProcessParameters->hStdInput;
396 case STD_OUTPUT_HANDLE: return NtCurrentTeb()->Peb->ProcessParameters->hStdOutput;
397 case STD_ERROR_HANDLE: return NtCurrentTeb()->Peb->ProcessParameters->hStdError;
399 SetLastError( ERROR_INVALID_PARAMETER );
400 return INVALID_HANDLE_VALUE;
404 /***********************************************************************
405 * SetStdHandle (KERNEL32.@)
407 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
411 case STD_INPUT_HANDLE: NtCurrentTeb()->Peb->ProcessParameters->hStdInput = handle; return TRUE;
412 case STD_OUTPUT_HANDLE: NtCurrentTeb()->Peb->ProcessParameters->hStdOutput = handle; return TRUE;
413 case STD_ERROR_HANDLE: NtCurrentTeb()->Peb->ProcessParameters->hStdError = handle; return TRUE;
415 SetLastError( ERROR_INVALID_PARAMETER );
419 /***********************************************************************
420 * GetStartupInfoA (KERNEL32.@)
422 VOID WINAPI GetStartupInfoA( LPSTARTUPINFOA info )
424 *info = startup_infoA;
428 /***********************************************************************
429 * GetStartupInfoW (KERNEL32.@)
431 VOID WINAPI GetStartupInfoW( LPSTARTUPINFOW info )
433 *info = startup_infoW;
436 /******************************************************************
437 * ENV_CopyStartupInformation (internal)
439 * Creates the STARTUPINFO information from the ntdll information
441 void ENV_CopyStartupInformation(void)
443 RTL_USER_PROCESS_PARAMETERS* rupp;
448 rupp = NtCurrentTeb()->Peb->ProcessParameters;
450 startup_infoW.cb = sizeof(startup_infoW);
451 startup_infoW.lpReserved = NULL;
452 startup_infoW.lpDesktop = rupp->Desktop.Buffer;
453 startup_infoW.lpTitle = rupp->WindowTitle.Buffer;
454 startup_infoW.dwX = rupp->dwX;
455 startup_infoW.dwY = rupp->dwY;
456 startup_infoW.dwXSize = rupp->dwXSize;
457 startup_infoW.dwYSize = rupp->dwYSize;
458 startup_infoW.dwXCountChars = rupp->dwXCountChars;
459 startup_infoW.dwYCountChars = rupp->dwYCountChars;
460 startup_infoW.dwFillAttribute = rupp->dwFillAttribute;
461 startup_infoW.dwFlags = rupp->dwFlags;
462 startup_infoW.wShowWindow = rupp->wShowWindow;
463 startup_infoW.cbReserved2 = rupp->RuntimeInfo.MaximumLength;
464 startup_infoW.lpReserved2 = rupp->RuntimeInfo.MaximumLength ? (void*)rupp->RuntimeInfo.Buffer : NULL;
465 startup_infoW.hStdInput = rupp->hStdInput;
466 startup_infoW.hStdOutput = rupp->hStdOutput;
467 startup_infoW.hStdError = rupp->hStdError;
469 startup_infoA.cb = sizeof(startup_infoA);
470 startup_infoA.lpReserved = NULL;
471 startup_infoA.lpDesktop = (rupp->Desktop.Length &&
472 RtlUnicodeStringToAnsiString( &ansi, &rupp->Desktop, TRUE) == STATUS_SUCCESS) ?
474 startup_infoA.lpTitle = (rupp->WindowTitle.Length &&
475 RtlUnicodeStringToAnsiString( &ansi, &rupp->WindowTitle, TRUE) == STATUS_SUCCESS) ?
477 startup_infoA.dwX = rupp->dwX;
478 startup_infoA.dwY = rupp->dwY;
479 startup_infoA.dwXSize = rupp->dwXSize;
480 startup_infoA.dwYSize = rupp->dwYSize;
481 startup_infoA.dwXCountChars = rupp->dwXCountChars;
482 startup_infoA.dwYCountChars = rupp->dwYCountChars;
483 startup_infoA.dwFillAttribute = rupp->dwFillAttribute;
484 startup_infoA.dwFlags = rupp->dwFlags;
485 startup_infoA.wShowWindow = rupp->wShowWindow;
486 startup_infoA.cbReserved2 = rupp->RuntimeInfo.MaximumLength;
487 startup_infoA.lpReserved2 = rupp->RuntimeInfo.MaximumLength ? (void*)rupp->RuntimeInfo.Buffer : NULL;
488 startup_infoA.hStdInput = rupp->hStdInput;
489 startup_infoA.hStdOutput = rupp->hStdOutput;
490 startup_infoA.hStdError = rupp->hStdError;