2 * msvcrt.dll errno functions
4 * Copyright 2000 Jon Griffiths
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
26 #define WIN32_NO_STATUS
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
36 /* error strings generated with glibc strerror */
37 static char str_success[] = "Success";
38 static char str_EPERM[] = "Operation not permitted";
39 static char str_ENOENT[] = "No such file or directory";
40 static char str_ESRCH[] = "No such process";
41 static char str_EINTR[] = "Interrupted system call";
42 static char str_EIO[] = "Input/output error";
43 static char str_ENXIO[] = "No such device or address";
44 static char str_E2BIG[] = "Argument list too long";
45 static char str_ENOEXEC[] = "Exec format error";
46 static char str_EBADF[] = "Bad file descriptor";
47 static char str_ECHILD[] = "No child processes";
48 static char str_EAGAIN[] = "Resource temporarily unavailable";
49 static char str_ENOMEM[] = "Cannot allocate memory";
50 static char str_EACCES[] = "Permission denied";
51 static char str_EFAULT[] = "Bad address";
52 static char str_EBUSY[] = "Device or resource busy";
53 static char str_EEXIST[] = "File exists";
54 static char str_EXDEV[] = "Invalid cross-device link";
55 static char str_ENODEV[] = "No such device";
56 static char str_ENOTDIR[] = "Not a directory";
57 static char str_EISDIR[] = "Is a directory";
58 static char str_EINVAL[] = "Invalid argument";
59 static char str_ENFILE[] = "Too many open files in system";
60 static char str_EMFILE[] = "Too many open files";
61 static char str_ENOTTY[] = "Inappropriate ioctl for device";
62 static char str_EFBIG[] = "File too large";
63 static char str_ENOSPC[] = "No space left on device";
64 static char str_ESPIPE[] = "Illegal seek";
65 static char str_EROFS[] = "Read-only file system";
66 static char str_EMLINK[] = "Too many links";
67 static char str_EPIPE[] = "Broken pipe";
68 static char str_EDOM[] = "Numerical argument out of domain";
69 static char str_ERANGE[] = "Numerical result out of range";
70 static char str_EDEADLK[] = "Resource deadlock avoided";
71 static char str_ENAMETOOLONG[] = "File name too long";
72 static char str_ENOLCK[] = "No locks available";
73 static char str_ENOSYS[] = "Function not implemented";
74 static char str_ENOTEMPTY[] = "Directory not empty";
75 static char str_EILSEQ[] = "Invalid or incomplete multibyte or wide character";
76 static char str_generic_error[] = "Unknown error";
78 char *MSVCRT__sys_errlist[] =
126 unsigned int MSVCRT__sys_nerr = sizeof(MSVCRT__sys_errlist)/sizeof(MSVCRT__sys_errlist[0]) - 1;
128 static MSVCRT_invalid_parameter_handler invalid_parameter_handler = NULL;
130 /* INTERNAL: Set the crt and dos errno's from the OS error given. */
131 void msvcrt_set_errno(int err)
133 int *errno = MSVCRT__errno();
134 MSVCRT_ulong *doserrno = MSVCRT___doserrno();
140 #define ERR_CASE(oserr) case oserr:
141 #define ERR_MAPS(oserr, crterr) case oserr: *errno = crterr; break
142 ERR_CASE(ERROR_ACCESS_DENIED)
143 ERR_CASE(ERROR_NETWORK_ACCESS_DENIED)
144 ERR_CASE(ERROR_CANNOT_MAKE)
145 ERR_CASE(ERROR_SEEK_ON_DEVICE)
146 ERR_CASE(ERROR_LOCK_FAILED)
147 ERR_CASE(ERROR_FAIL_I24)
148 ERR_CASE(ERROR_CURRENT_DIRECTORY)
149 ERR_CASE(ERROR_DRIVE_LOCKED)
150 ERR_CASE(ERROR_NOT_LOCKED)
151 ERR_CASE(ERROR_INVALID_ACCESS)
152 ERR_CASE(ERROR_SHARING_VIOLATION)
153 ERR_MAPS(ERROR_LOCK_VIOLATION, MSVCRT_EACCES);
154 ERR_CASE(ERROR_FILE_NOT_FOUND)
155 ERR_CASE(ERROR_NO_MORE_FILES)
156 ERR_CASE(ERROR_BAD_PATHNAME)
157 ERR_CASE(ERROR_BAD_NETPATH)
158 ERR_CASE(ERROR_INVALID_DRIVE)
159 ERR_CASE(ERROR_BAD_NET_NAME)
160 ERR_CASE(ERROR_FILENAME_EXCED_RANGE)
161 ERR_MAPS(ERROR_PATH_NOT_FOUND, MSVCRT_ENOENT);
162 ERR_MAPS(ERROR_IO_DEVICE, MSVCRT_EIO);
163 ERR_MAPS(ERROR_BAD_FORMAT, MSVCRT_ENOEXEC);
164 ERR_MAPS(ERROR_INVALID_HANDLE, MSVCRT_EBADF);
165 ERR_CASE(ERROR_OUTOFMEMORY)
166 ERR_CASE(ERROR_INVALID_BLOCK)
167 ERR_CASE(ERROR_NOT_ENOUGH_QUOTA);
168 ERR_MAPS(ERROR_ARENA_TRASHED, MSVCRT_ENOMEM);
169 ERR_MAPS(ERROR_BUSY, MSVCRT_EBUSY);
170 ERR_CASE(ERROR_ALREADY_EXISTS)
171 ERR_MAPS(ERROR_FILE_EXISTS, MSVCRT_EEXIST);
172 ERR_MAPS(ERROR_BAD_DEVICE, MSVCRT_ENODEV);
173 ERR_MAPS(ERROR_TOO_MANY_OPEN_FILES, MSVCRT_EMFILE);
174 ERR_MAPS(ERROR_DISK_FULL, MSVCRT_ENOSPC);
175 ERR_MAPS(ERROR_BROKEN_PIPE, MSVCRT_EPIPE);
176 ERR_MAPS(ERROR_POSSIBLE_DEADLOCK, MSVCRT_EDEADLK);
177 ERR_MAPS(ERROR_DIR_NOT_EMPTY, MSVCRT_ENOTEMPTY);
178 ERR_MAPS(ERROR_BAD_ENVIRONMENT, MSVCRT_E2BIG);
179 ERR_CASE(ERROR_WAIT_NO_CHILDREN)
180 ERR_MAPS(ERROR_CHILD_NOT_COMPLETE, MSVCRT_ECHILD);
181 ERR_CASE(ERROR_NO_PROC_SLOTS)
182 ERR_CASE(ERROR_MAX_THRDS_REACHED)
183 ERR_MAPS(ERROR_NESTING_NOT_ALLOWED, MSVCRT_EAGAIN);
185 /* Remaining cases map to EINVAL */
186 /* FIXME: may be missing some errors above */
187 *errno = MSVCRT_EINVAL;
191 /*********************************************************************
194 int* CDECL MSVCRT__errno(void)
196 return &msvcrt_get_thread_data()->thread_errno;
199 /*********************************************************************
200 * __doserrno (MSVCRT.@)
202 MSVCRT_ulong* CDECL MSVCRT___doserrno(void)
204 return &msvcrt_get_thread_data()->thread_doserrno;
207 /*********************************************************************
208 * _get_errno (MSVCRT.@)
210 int CDECL _get_errno(int *pValue)
213 return MSVCRT_EINVAL;
215 *pValue = *MSVCRT__errno();
219 /*********************************************************************
220 * _get_doserrno (MSVCRT.@)
222 int CDECL _get_doserrno(int *pValue)
225 return MSVCRT_EINVAL;
227 *pValue = *MSVCRT___doserrno();
231 /*********************************************************************
232 * _set_errno (MSVCRT.@)
234 int CDECL _set_errno(int value)
236 *MSVCRT__errno() = value;
240 /*********************************************************************
241 * _set_doserrno (MSVCRT.@)
243 int CDECL _set_doserrno(int value)
245 *MSVCRT___doserrno() = value;
249 /*********************************************************************
250 * strerror (MSVCRT.@)
252 char* CDECL MSVCRT_strerror(int err)
254 thread_data_t *data = msvcrt_get_thread_data();
256 if (!data->strerror_buffer)
257 if (!(data->strerror_buffer = MSVCRT_malloc(256))) return NULL;
259 if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
260 strcpy( data->strerror_buffer, MSVCRT__sys_errlist[err] );
261 return data->strerror_buffer;
264 /**********************************************************************
265 * strerror_s (MSVCRT.@)
267 int CDECL strerror_s(char *buffer, MSVCRT_size_t numberOfElements, int errnum)
271 if (!buffer || !numberOfElements)
273 *MSVCRT__errno() = MSVCRT_EINVAL;
274 return MSVCRT_EINVAL;
277 if (errnum < 0 || errnum > MSVCRT__sys_nerr)
278 errnum = MSVCRT__sys_nerr;
280 ptr = MSVCRT__sys_errlist[errnum];
281 while (*ptr && numberOfElements > 1)
291 /**********************************************************************
292 * _strerror (MSVCRT.@)
294 char* CDECL _strerror(const char* str)
296 thread_data_t *data = msvcrt_get_thread_data();
299 if (!data->strerror_buffer)
300 if (!(data->strerror_buffer = MSVCRT_malloc(256))) return NULL;
302 err = data->thread_errno;
303 if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
306 sprintf( data->strerror_buffer, "%s: %s\n", str, MSVCRT__sys_errlist[err] );
308 sprintf( data->strerror_buffer, "%s\n", MSVCRT__sys_errlist[err] );
310 return data->strerror_buffer;
313 /*********************************************************************
316 void CDECL MSVCRT_perror(const char* str)
318 int err = *MSVCRT__errno();
319 if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
323 MSVCRT__write( 2, str, strlen(str) );
324 MSVCRT__write( 2, ": ", 2 );
326 MSVCRT__write( 2, MSVCRT__sys_errlist[err], strlen(MSVCRT__sys_errlist[err]) );
327 MSVCRT__write( 2, "\n", 1 );
330 /*********************************************************************
331 * _wcserror_s (MSVCRT.@)
333 int CDECL _wcserror_s(MSVCRT_wchar_t* buffer, MSVCRT_size_t nc, int err)
335 if (!MSVCRT_CHECK_PMT(buffer != NULL) || !MSVCRT_CHECK_PMT(nc > 0))
337 _set_errno(MSVCRT_EINVAL);
338 return MSVCRT_EINVAL;
340 if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
341 MultiByteToWideChar(CP_ACP, 0, MSVCRT__sys_errlist[err], -1, buffer, nc);
345 /*********************************************************************
346 * _wcserror (MSVCRT.@)
348 MSVCRT_wchar_t* CDECL _wcserror(int err)
350 thread_data_t *data = msvcrt_get_thread_data();
352 if (!data->wcserror_buffer)
353 if (!(data->wcserror_buffer = MSVCRT_malloc(256 * sizeof(MSVCRT_wchar_t)))) return NULL;
354 _wcserror_s(data->wcserror_buffer, 256, err);
355 return data->wcserror_buffer;
358 /**********************************************************************
359 * __wcserror_s (MSVCRT.@)
361 int CDECL __wcserror_s(MSVCRT_wchar_t* buffer, MSVCRT_size_t nc, const MSVCRT_wchar_t* str)
364 static const WCHAR colonW[] = {':', ' ', '\0'};
365 static const WCHAR nlW[] = {'\n', '\0'};
368 err = *MSVCRT__errno();
369 if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
371 len = MultiByteToWideChar(CP_ACP, 0, MSVCRT__sys_errlist[err], -1, NULL, 0) + 1 /* \n */;
372 if (str && *str) len += lstrlenW(str) + 2 /* ': ' */;
375 MSVCRT_INVALID_PMT("buffer[nc] is too small");
376 _set_errno(MSVCRT_ERANGE);
377 return MSVCRT_ERANGE;
381 lstrcpyW(buffer, str);
382 lstrcatW(buffer, colonW);
384 else buffer[0] = '\0';
385 len = lstrlenW(buffer);
386 MultiByteToWideChar(CP_ACP, 0, MSVCRT__sys_errlist[err], -1, buffer + len, 256 - len);
387 lstrcatW(buffer, nlW);
392 /**********************************************************************
393 * __wcserror (MSVCRT.@)
395 MSVCRT_wchar_t* CDECL __wcserror(const MSVCRT_wchar_t* str)
397 thread_data_t *data = msvcrt_get_thread_data();
400 if (!data->wcserror_buffer)
401 if (!(data->wcserror_buffer = MSVCRT_malloc(256 * sizeof(MSVCRT_wchar_t)))) return NULL;
403 err = __wcserror_s(data->wcserror_buffer, 256, str);
404 if (err) FIXME("bad wcserror call (%d)\n", err);
406 return data->wcserror_buffer;
409 /******************************************************************************
410 * _set_error_mode (MSVCRT.@)
412 * Set the error mode, which describes where the C run-time writes error
416 * mode - the new error mode
419 * The old error mode.
422 * This function does not have a proper implementation; the error mode is
425 int CDECL _set_error_mode(int mode)
427 static int current_mode = MSVCRT__OUT_TO_DEFAULT;
429 const int old = current_mode;
430 if ( MSVCRT__REPORT_ERRMODE != mode ) {
432 FIXME("dummy implementation (old mode: %d, new mode: %d)\n",
438 /******************************************************************************
439 * _seterrormode (MSVCRT.@)
441 void CDECL _seterrormode(int mode)
443 SetErrorMode( mode );
446 /******************************************************************************
447 * _invalid_parameter (MSVCRT.@)
449 void __cdecl MSVCRT__invalid_parameter(const MSVCRT_wchar_t *expr, const MSVCRT_wchar_t *func,
450 const MSVCRT_wchar_t *file, unsigned int line, MSVCRT_uintptr_t arg)
452 if (invalid_parameter_handler) invalid_parameter_handler( expr, func, file, line, arg );
455 ERR( "%s:%u %s: %s %lx\n", debugstr_w(file), line, debugstr_w(func), debugstr_w(expr), arg );
456 RaiseException( STATUS_INVALID_CRUNTIME_PARAMETER, EXCEPTION_NONCONTINUABLE, 0, NULL );
460 /* _get_invalid_parameter_handler - not exported in native msvcrt, added in msvcr80 */
461 MSVCRT_invalid_parameter_handler CDECL _get_invalid_parameter_handler(void)
464 return invalid_parameter_handler;
467 /* _set_invalid_parameter_handler - not exproted in native msvcrt, added in msvcr80 */
468 MSVCRT_invalid_parameter_handler CDECL _set_invalid_parameter_handler(
469 MSVCRT_invalid_parameter_handler handler)
471 MSVCRT_invalid_parameter_handler old = invalid_parameter_handler;
473 TRACE("(%p)\n", handler);
475 invalid_parameter_handler = handler;