mirror of
https://github.com/reactos/reactos.git
synced 2024-05-19 20:02:03 +00:00
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/sdk/crt/stdlib/errno.c
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* PURPOSE: Unknown
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* PROGRAMER: Unknown
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*
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*/
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#include <precomp.h>
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#include "doserrmap.h"
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#include <errno.h>
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#include <internal/wine/msvcrt.h>
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/*********************************************************************
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* _errno (MSVCRT.@)
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*/
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int* CDECL _errno(void)
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{
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return &(msvcrt_get_thread_data()->thread_errno);
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}
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/*********************************************************************
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* __doserrno (MSVCRT.@)
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*/
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unsigned long* CDECL __doserrno(void)
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{
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return &(msvcrt_get_thread_data()->thread_doserrno);
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}
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/*********************************************************************
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* _get_errno (MSVCRT.@)
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*/
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errno_t CDECL _get_errno(int *pValue)
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{
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if (!pValue)
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return EINVAL;
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*pValue = *_errno();
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return 0;
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}
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/*********************************************************************
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* _get_doserrno (MSVCRT.@)
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*/
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errno_t CDECL _get_doserrno(unsigned long *pValue)
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{
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if (!pValue)
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return EINVAL;
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*pValue = *__doserrno();
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return 0;
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}
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/*********************************************************************
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* _set_errno (MSVCRT.@)
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*/
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errno_t CDECL _set_errno(int value)
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{
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*_errno() = value;
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return 0;
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}
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/*********************************************************************
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* _set_doserrno (MSVCRT.@)
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*/
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errno_t CDECL _set_doserrno(unsigned long value)
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{
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*__doserrno() = value;
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return 0;
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}
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/*
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* This function sets both doserrno to the passed in OS error code
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* and also maps this to an appropriate errno code. The mapping
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* has been deduced automagically by running this functions, which
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* exists in MSVCRT but is undocumented, on all the error codes in
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* winerror.h.
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*/
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void CDECL _dosmaperr(unsigned long oserror)
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{
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int pos, base, lim;
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_set_doserrno(oserror);
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/* Use binary chop to find the corresponding errno code */
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for (base=0, lim=sizeof(doserrmap)/sizeof(doserrmap[0]); lim; lim >>= 1) {
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pos = base+(lim >> 1);
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if (doserrmap[pos].winerr == oserror) {
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_set_errno(doserrmap[pos].en);
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return;
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} else if (doserrmap[pos].winerr < oserror) {
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base = pos + 1;
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--lim;
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}
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}
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/* EINVAL appears to be the default */
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_set_errno(EINVAL);
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}
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/******************************************************************************
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* _set_error_mode (MSVCRT.@)
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*
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* Set the error mode, which describes where the C run-time writes error
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* messages.
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*
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* PARAMS
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* mode - the new error mode
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*
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* RETURNS
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* The old error mode.
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*
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*/
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int msvcrt_error_mode = MSVCRT__OUT_TO_DEFAULT;
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int CDECL _set_error_mode(int mode)
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{
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const int old = msvcrt_error_mode;
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if ( MSVCRT__REPORT_ERRMODE != mode ) {
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msvcrt_error_mode = mode;
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}
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return old;
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}
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/******************************************************************************
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* _seterrormode (MSVCRT.@)
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*/
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void CDECL _seterrormode(int mode)
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{
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SetErrorMode( mode );
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}
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