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wine/dlls/msvcrt/errno.c

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/*
* msvcrt.dll errno functions
*
* Copyright 2000 Jon Griffiths
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <string.h>
#include "msvcrt.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/* error strings generated with glibc strerror */
static char str_success[] = "Success";
static char str_EPERM[] = "Operation not permitted";
static char str_ENOENT[] = "No such file or directory";
static char str_ESRCH[] = "No such process";
static char str_EINTR[] = "Interrupted system call";
static char str_EIO[] = "Input/output error";
static char str_ENXIO[] = "No such device or address";
static char str_E2BIG[] = "Argument list too long";
static char str_ENOEXEC[] = "Exec format error";
static char str_EBADF[] = "Bad file descriptor";
static char str_ECHILD[] = "No child processes";
static char str_EAGAIN[] = "Resource temporarily unavailable";
static char str_ENOMEM[] = "Cannot allocate memory";
static char str_EACCES[] = "Permission denied";
static char str_EFAULT[] = "Bad address";
static char str_EBUSY[] = "Device or resource busy";
static char str_EEXIST[] = "File exists";
static char str_EXDEV[] = "Invalid cross-device link";
static char str_ENODEV[] = "No such device";
static char str_ENOTDIR[] = "Not a directory";
static char str_EISDIR[] = "Is a directory";
static char str_EINVAL[] = "Invalid argument";
static char str_ENFILE[] = "Too many open files in system";
static char str_EMFILE[] = "Too many open files";
static char str_ENOTTY[] = "Inappropriate ioctl for device";
static char str_EFBIG[] = "File too large";
static char str_ENOSPC[] = "No space left on device";
static char str_ESPIPE[] = "Illegal seek";
static char str_EROFS[] = "Read-only file system";
static char str_EMLINK[] = "Too many links";
static char str_EPIPE[] = "Broken pipe";
static char str_EDOM[] = "Numerical argument out of domain";
static char str_ERANGE[] = "Numerical result out of range";
static char str_EDEADLK[] = "Resource deadlock avoided";
static char str_ENAMETOOLONG[] = "File name too long";
static char str_ENOLCK[] = "No locks available";
static char str_ENOSYS[] = "Function not implemented";
static char str_ENOTEMPTY[] = "Directory not empty";
static char str_EILSEQ[] = "Invalid or incomplete multibyte or wide character";
static char str_generic_error[] = "Unknown error";
char *MSVCRT__sys_errlist[] =
{
str_success,
str_EPERM,
str_ENOENT,
str_ESRCH,
str_EINTR,
str_EIO,
str_ENXIO,
str_E2BIG,
str_ENOEXEC,
str_EBADF,
str_ECHILD,
str_EAGAIN,
str_ENOMEM,
str_EACCES,
str_EFAULT,
str_generic_error,
str_EBUSY,
str_EEXIST,
str_EXDEV,
str_ENODEV,
str_ENOTDIR,
str_EISDIR,
str_EINVAL,
str_ENFILE,
str_EMFILE,
str_ENOTTY,
str_generic_error,
str_EFBIG,
str_ENOSPC,
str_ESPIPE,
str_EROFS,
str_EMLINK,
str_EPIPE,
str_EDOM,
str_ERANGE,
str_generic_error,
str_EDEADLK,
str_generic_error,
str_ENAMETOOLONG,
str_ENOLCK,
str_ENOSYS,
str_ENOTEMPTY,
str_EILSEQ,
str_generic_error
};
unsigned int MSVCRT__sys_nerr = sizeof(MSVCRT__sys_errlist)/sizeof(MSVCRT__sys_errlist[0]) - 1;
/* INTERNAL: Set the crt and dos errno's from the OS error given. */
void msvcrt_set_errno(int err)
{
int *errno = MSVCRT__errno();
unsigned long *doserrno = MSVCRT___doserrno();
*doserrno = err;
switch(err)
{
#define ERR_CASE(oserr) case oserr:
#define ERR_MAPS(oserr,crterr) case oserr:*errno = crterr;break;
ERR_CASE(ERROR_ACCESS_DENIED)
ERR_CASE(ERROR_NETWORK_ACCESS_DENIED)
ERR_CASE(ERROR_CANNOT_MAKE)
ERR_CASE(ERROR_SEEK_ON_DEVICE)
ERR_CASE(ERROR_LOCK_FAILED)
ERR_CASE(ERROR_FAIL_I24)
ERR_CASE(ERROR_CURRENT_DIRECTORY)
ERR_CASE(ERROR_DRIVE_LOCKED)
ERR_CASE(ERROR_NOT_LOCKED)
ERR_CASE(ERROR_INVALID_ACCESS)
ERR_MAPS(ERROR_LOCK_VIOLATION, MSVCRT_EACCES);
ERR_CASE(ERROR_FILE_NOT_FOUND)
ERR_CASE(ERROR_NO_MORE_FILES)
ERR_CASE(ERROR_BAD_PATHNAME)
ERR_CASE(ERROR_BAD_NETPATH)
ERR_CASE(ERROR_INVALID_DRIVE)
ERR_CASE(ERROR_BAD_NET_NAME)
ERR_CASE(ERROR_FILENAME_EXCED_RANGE)
ERR_MAPS(ERROR_PATH_NOT_FOUND, MSVCRT_ENOENT);
ERR_MAPS(ERROR_IO_DEVICE, MSVCRT_EIO);
ERR_MAPS(ERROR_BAD_FORMAT, MSVCRT_ENOEXEC);
ERR_MAPS(ERROR_INVALID_HANDLE, MSVCRT_EBADF);
ERR_CASE(ERROR_OUTOFMEMORY)
ERR_CASE(ERROR_INVALID_BLOCK)
ERR_CASE(ERROR_NOT_ENOUGH_QUOTA);
ERR_MAPS(ERROR_ARENA_TRASHED, MSVCRT_ENOMEM);
ERR_MAPS(ERROR_BUSY, MSVCRT_EBUSY);
ERR_CASE(ERROR_ALREADY_EXISTS)
ERR_MAPS(ERROR_FILE_EXISTS, MSVCRT_EEXIST);
ERR_MAPS(ERROR_BAD_DEVICE, MSVCRT_ENODEV);
ERR_MAPS(ERROR_TOO_MANY_OPEN_FILES, MSVCRT_EMFILE);
ERR_MAPS(ERROR_DISK_FULL, MSVCRT_ENOSPC);
ERR_MAPS(ERROR_BROKEN_PIPE, MSVCRT_EPIPE);
ERR_MAPS(ERROR_POSSIBLE_DEADLOCK, MSVCRT_EDEADLK);
ERR_MAPS(ERROR_DIR_NOT_EMPTY, MSVCRT_ENOTEMPTY);
ERR_MAPS(ERROR_BAD_ENVIRONMENT, MSVCRT_E2BIG);
ERR_CASE(ERROR_WAIT_NO_CHILDREN)
ERR_MAPS(ERROR_CHILD_NOT_COMPLETE, MSVCRT_ECHILD);
ERR_CASE(ERROR_NO_PROC_SLOTS)
ERR_CASE(ERROR_MAX_THRDS_REACHED)
ERR_MAPS(ERROR_NESTING_NOT_ALLOWED, MSVCRT_EAGAIN);
default:
/* Remaining cases map to EINVAL */
/* FIXME: may be missing some errors above */
*errno = MSVCRT_EINVAL;
}
}
/*********************************************************************
* _errno (MSVCRT.@)
*/
int* CDECL MSVCRT__errno(void)
{
return &msvcrt_get_thread_data()->thread_errno;
}
/*********************************************************************
* __doserrno (MSVCRT.@)
*/
unsigned long* CDECL MSVCRT___doserrno(void)
{
return &msvcrt_get_thread_data()->thread_doserrno;
}
/*********************************************************************
* strerror (MSVCRT.@)
*/
char* CDECL MSVCRT_strerror(int err)
{
thread_data_t *data = msvcrt_get_thread_data();
if (!data->strerror_buffer)
if (!(data->strerror_buffer = MSVCRT_malloc(256))) return NULL;
if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
strcpy( data->strerror_buffer, MSVCRT__sys_errlist[err] );
return data->strerror_buffer;
}
/**********************************************************************
* _strerror (MSVCRT.@)
*/
char* CDECL _strerror(const char* str)
{
thread_data_t *data = msvcrt_get_thread_data();
int err;
if (!data->strerror_buffer)
if (!(data->strerror_buffer = MSVCRT_malloc(256))) return NULL;
err = data->thread_errno;
if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
if (str && *str)
sprintf( data->strerror_buffer, "%s: %s\n", str, MSVCRT__sys_errlist[err] );
else
sprintf( data->strerror_buffer, "%s\n", MSVCRT__sys_errlist[err] );
return data->strerror_buffer;
}
/*********************************************************************
* perror (MSVCRT.@)
*/
void CDECL MSVCRT_perror(const char* str)
{
int err = *MSVCRT__errno();
if (err < 0 || err > MSVCRT__sys_nerr) err = MSVCRT__sys_nerr;
if (str && *str)
{
_write( 2, str, strlen(str) );
_write( 2, ": ", 2 );
}
_write( 2, MSVCRT__sys_errlist[err], strlen(MSVCRT__sys_errlist[err]) );
_write( 2, "\n", 1 );
}
/******************************************************************************
* _set_error_mode (MSVCRT.@)
*
* Set the error mode, which describes where the C run-time writes error
* messages.
*
* PARAMS
* mode - the new error mode
*
* RETURNS
* The old error mode.
*
* TODO
* This function does not have a proper implementation; the error mode is
* never used.
*/
int CDECL _set_error_mode(int mode)
{
static int current_mode = MSVCRT__OUT_TO_DEFAULT;
const int old = current_mode;
if ( MSVCRT__REPORT_ERRMODE != mode ) {
current_mode = mode;
FIXME("dummy implementation (old mode: %d, new mode: %d)\n",
old, mode);
}
return old;
}
/******************************************************************************
* _seterrormode (MSVCRT.@)
*/
void CDECL _seterrormode(int mode)
{
SetErrorMode( mode );
}
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