You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
221 lines
8.7 KiB
221 lines
8.7 KiB
/***
|
|
*dosmap.c - Maps OS errors to errno values
|
|
*
|
|
* Copyright (c) 1989-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* _dosmaperr: Maps OS errors to errno values
|
|
*
|
|
*Revision History:
|
|
* 06-06-89 PHG Module created, based on asm version
|
|
* 06-16-89 PHG Changed name to _dosmaperr
|
|
* 08-22-89 JCR ERROR_INVALID_DRIVE (15) now maps to ENOENT not EXDEV
|
|
* 03-07-90 GJF Made calling type _CALLTYPE1, added #include
|
|
* <cruntime.h> and fixed copyright. Also, cleaned up the
|
|
* formatting a bit.
|
|
* 09-27-90 GJF New-style function declarator.
|
|
* 12-04-90 SRW Changed to include <oscalls.h> instead of <doscalls.h>
|
|
* 12-06-90 SRW Added _CRUISER_ and _WIN32 conditionals.
|
|
* 04-26-91 SRW Added ERROR_LOCK_VIOLATION translation to EACCES
|
|
* 08-15-91 GJF Multi-thread support for Win32.
|
|
* 03-31-92 GJF Added more error codes (Win32 only) and removed OS/2
|
|
* specific nomenclature.
|
|
* 07-29-92 GJF Added ERROR_FILE_EXISTS to table for Win32. It gets
|
|
* mapped it to EEXIST.
|
|
* 09-14-92 SRW Added ERROR_BAD_PATHNAME table for Win32. It gets
|
|
* mapped it to ENOENT.
|
|
* 10-02-92 GJF Map ERROR_INVALID_PARAMETER to EINVAL (rather than
|
|
* EACCES). Added ERROR_NOT_LOCKED and mapped it to
|
|
* EACCES. Added ERROR_DIR_NOT_EMPTY and mapped it to
|
|
* ENOTEMPTY.
|
|
* 02-16-93 GJF Changed for new _getptd().
|
|
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
|
|
* 01-06-94 GJF Dumped obsolete Cruiser support, revised errentry
|
|
* struct definition and added mapping for infamous
|
|
* ERROR_NOT_ENOUGH_QUOTA (non-swappable memory pages)
|
|
* which might result from a CreateThread call.
|
|
* 02-08-95 JWM Spliced _WIN32 & Mac versions.
|
|
* 05-24-95 CFW Map dupFNErr to EEXIST rather than EACCESS.
|
|
* 07-01-96 GJF Replaced defined(_WIN32) with !defined(_MAC). Also,
|
|
* detab-ed and cleaned up the format a bit.
|
|
* 05-17-99 PML Remove all Macintosh support.
|
|
* 12-11-01 BWT Replace _getptd with _getptd_noexit - failure to
|
|
* allocate a ptd structure shouldn't terminate the app
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#include <cruntime.h>
|
|
#include <errno.h>
|
|
#include <oscalls.h>
|
|
#include <stdlib.h>
|
|
#include <internal.h>
|
|
#include <mtdll.h>
|
|
|
|
/* This is the error table that defines the mapping between OS error
|
|
codes and errno values */
|
|
|
|
struct errentry {
|
|
unsigned long oscode; /* OS return value */
|
|
int errnocode; /* System V error code */
|
|
};
|
|
|
|
static struct errentry errtable[] = {
|
|
{ ERROR_INVALID_FUNCTION, EINVAL }, /* 1 */
|
|
{ ERROR_FILE_NOT_FOUND, ENOENT }, /* 2 */
|
|
{ ERROR_PATH_NOT_FOUND, ENOENT }, /* 3 */
|
|
{ ERROR_TOO_MANY_OPEN_FILES, EMFILE }, /* 4 */
|
|
{ ERROR_ACCESS_DENIED, EACCES }, /* 5 */
|
|
{ ERROR_INVALID_HANDLE, EBADF }, /* 6 */
|
|
{ ERROR_ARENA_TRASHED, ENOMEM }, /* 7 */
|
|
{ ERROR_NOT_ENOUGH_MEMORY, ENOMEM }, /* 8 */
|
|
{ ERROR_INVALID_BLOCK, ENOMEM }, /* 9 */
|
|
{ ERROR_BAD_ENVIRONMENT, E2BIG }, /* 10 */
|
|
{ ERROR_BAD_FORMAT, ENOEXEC }, /* 11 */
|
|
{ ERROR_INVALID_ACCESS, EINVAL }, /* 12 */
|
|
{ ERROR_INVALID_DATA, EINVAL }, /* 13 */
|
|
{ ERROR_INVALID_DRIVE, ENOENT }, /* 15 */
|
|
{ ERROR_CURRENT_DIRECTORY, EACCES }, /* 16 */
|
|
{ ERROR_NOT_SAME_DEVICE, EXDEV }, /* 17 */
|
|
{ ERROR_NO_MORE_FILES, ENOENT }, /* 18 */
|
|
{ ERROR_LOCK_VIOLATION, EACCES }, /* 33 */
|
|
{ ERROR_BAD_NETPATH, ENOENT }, /* 53 */
|
|
{ ERROR_NETWORK_ACCESS_DENIED, EACCES }, /* 65 */
|
|
{ ERROR_BAD_NET_NAME, ENOENT }, /* 67 */
|
|
{ ERROR_FILE_EXISTS, EEXIST }, /* 80 */
|
|
{ ERROR_CANNOT_MAKE, EACCES }, /* 82 */
|
|
{ ERROR_FAIL_I24, EACCES }, /* 83 */
|
|
{ ERROR_INVALID_PARAMETER, EINVAL }, /* 87 */
|
|
{ ERROR_NO_PROC_SLOTS, EAGAIN }, /* 89 */
|
|
{ ERROR_DRIVE_LOCKED, EACCES }, /* 108 */
|
|
{ ERROR_BROKEN_PIPE, EPIPE }, /* 109 */
|
|
{ ERROR_DISK_FULL, ENOSPC }, /* 112 */
|
|
{ ERROR_INVALID_TARGET_HANDLE, EBADF }, /* 114 */
|
|
{ ERROR_INVALID_HANDLE, EINVAL }, /* 124 */
|
|
{ ERROR_WAIT_NO_CHILDREN, ECHILD }, /* 128 */
|
|
{ ERROR_CHILD_NOT_COMPLETE, ECHILD }, /* 129 */
|
|
{ ERROR_DIRECT_ACCESS_HANDLE, EBADF }, /* 130 */
|
|
{ ERROR_NEGATIVE_SEEK, EINVAL }, /* 131 */
|
|
{ ERROR_SEEK_ON_DEVICE, EACCES }, /* 132 */
|
|
{ ERROR_DIR_NOT_EMPTY, ENOTEMPTY }, /* 145 */
|
|
{ ERROR_NOT_LOCKED, EACCES }, /* 158 */
|
|
{ ERROR_BAD_PATHNAME, ENOENT }, /* 161 */
|
|
{ ERROR_MAX_THRDS_REACHED, EAGAIN }, /* 164 */
|
|
{ ERROR_LOCK_FAILED, EACCES }, /* 167 */
|
|
{ ERROR_ALREADY_EXISTS, EEXIST }, /* 183 */
|
|
{ ERROR_FILENAME_EXCED_RANGE, ENOENT }, /* 206 */
|
|
{ ERROR_NESTING_NOT_ALLOWED, EAGAIN }, /* 215 */
|
|
{ ERROR_NOT_ENOUGH_QUOTA, ENOMEM } /* 1816 */
|
|
};
|
|
|
|
/* size of the table */
|
|
#define ERRTABLESIZE (sizeof(errtable)/sizeof(errtable[0]))
|
|
|
|
/* The following two constants must be the minimum and maximum
|
|
values in the (contiguous) range of Exec Failure errors. */
|
|
#define MIN_EXEC_ERROR ERROR_INVALID_STARTING_CODESEG
|
|
#define MAX_EXEC_ERROR ERROR_INFLOOP_IN_RELOC_CHAIN
|
|
|
|
/* These are the low and high value in the range of errors that are
|
|
access violations */
|
|
#define MIN_EACCES_RANGE ERROR_WRITE_PROTECT
|
|
#define MAX_EACCES_RANGE ERROR_SHARING_BUFFER_EXCEEDED
|
|
|
|
|
|
/***
|
|
*void _dosmaperr(oserrno) - Map function number
|
|
*
|
|
*Purpose:
|
|
* This function takes an OS error number, and maps it to the
|
|
* corresponding errno value (based on UNIX System V values). The
|
|
* OS error number is stored in _doserrno (and the mapped value is
|
|
* stored in errno)
|
|
*
|
|
*Entry:
|
|
* ULONG oserrno = OS error value
|
|
*
|
|
*Exit:
|
|
* sets _doserrno and errno.
|
|
*
|
|
*Exceptions:
|
|
*
|
|
*******************************************************************************/
|
|
|
|
void __cdecl _dosmaperr (
|
|
unsigned long oserrno
|
|
)
|
|
{
|
|
int i;
|
|
|
|
_doserrno = oserrno; /* set _doserrno */
|
|
|
|
/* check the table for the OS error code */
|
|
for (i = 0; i < ERRTABLESIZE; ++i) {
|
|
if (oserrno == errtable[i].oscode) {
|
|
errno = errtable[i].errnocode;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* The error code wasn't in the table. We check for a range of */
|
|
/* EACCES errors or exec failure errors (ENOEXEC). Otherwise */
|
|
/* EINVAL is returned. */
|
|
|
|
if (oserrno >= MIN_EACCES_RANGE && oserrno <= MAX_EACCES_RANGE)
|
|
errno = EACCES;
|
|
else if (oserrno >= MIN_EXEC_ERROR && oserrno <= MAX_EXEC_ERROR)
|
|
errno = ENOEXEC;
|
|
else
|
|
errno = EINVAL;
|
|
}
|
|
|
|
#ifdef _MT
|
|
|
|
/***
|
|
*int * _errno() - return pointer to thread's errno
|
|
*unsigned long * __doserrno() - return pointer to thread's _doserrno
|
|
*
|
|
*Purpose:
|
|
* _errno() returns a pointer to the _terrno field in the current
|
|
* thread's _tiddata structure.
|
|
* __doserrno returns a pointer to the _tdoserrno field in the current
|
|
* thread's _tiddata structure
|
|
*
|
|
*Entry:
|
|
* None.
|
|
*
|
|
*Exit:
|
|
* See above.
|
|
*
|
|
*Exceptions:
|
|
*
|
|
*******************************************************************************/
|
|
|
|
static int ErrnoNoMem = ENOMEM;
|
|
static unsigned long DoserrorNoMem = ERROR_NOT_ENOUGH_MEMORY;
|
|
|
|
int * __cdecl _errno(
|
|
void
|
|
)
|
|
{
|
|
_ptiddata ptd = _getptd_noexit();
|
|
if (!ptd) {
|
|
return &ErrnoNoMem;
|
|
} else {
|
|
return ( &ptd->_terrno );
|
|
}
|
|
|
|
}
|
|
|
|
unsigned long * __cdecl __doserrno(
|
|
void
|
|
)
|
|
{
|
|
_ptiddata ptd = _getptd_noexit();
|
|
if (!ptd) {
|
|
return &DoserrorNoMem;
|
|
} else {
|
|
return ( &ptd->_tdoserrno );
|
|
}
|
|
}
|
|
|
|
#endif /* _MT */
|