/* * COPYRIGHT: See COPYING in the top level directory * PROJECT: ReactOS system libraries * FILE: lib/crt/errno.c * PURPOSE: Unknown * PROGRAMER: Unknown * */ #include #include "doserrmap.h" #include #include static _invalid_parameter_handler invalid_parameter_handler = NULL; /* * @implemented */ unsigned long* __doserrno(void) { return (unsigned long*)(&GetThreadData()->tdoserrno); } /* * @implemented */ int *_errno(void) { return(&GetThreadData()->terrno); } int __set_doserrno(int error) { PTHREADDATA ThreadData; ThreadData = GetThreadData(); if (ThreadData) ThreadData->tdoserrno = error; return(error); } int __set_errno(int error) { PTHREADDATA ThreadData; ThreadData = GetThreadData(); if (ThreadData) ThreadData->terrno = error; return(error); } /* * This function sets both doserrno to the passed in OS error code * and also maps this to an appropriate errno code. The mapping * has been deduced automagically by running this functions, which * exists in MSVCRT but is undocumented, on all the error codes in * winerror.h. */ void _dosmaperr(unsigned long oserror) { int pos, base, lim; __set_doserrno(oserror); /* Use binary chop to find the corresponding errno code */ for (base=0, lim=sizeof(doserrmap)/sizeof(doserrmap[0]); lim; lim >>= 1) { pos = base+(lim >> 1); if (doserrmap[pos].winerr == oserror) { __set_errno(doserrmap[pos].en); return; } else if (doserrmap[pos].winerr < oserror) { base = pos + 1; --lim; } } /* EINVAL appears to be the default */ __set_errno(EINVAL); } /****************************************************************************** * _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; } return old; } /****************************************************************************** * _seterrormode (MSVCRT.@) */ void CDECL _seterrormode(int mode) { SetErrorMode( mode ); } /****************************************************************************** * _invalid_parameter (MSVCRT.@) */ void __cdecl _invalid_parameter(const wchar_t *expr, const wchar_t *func, const wchar_t *file, unsigned int line, uintptr_t arg) { if (invalid_parameter_handler) invalid_parameter_handler( expr, func, file, line, arg ); else { ERR( "%s:%u %s: %s %lx\n", debugstr_w(file), line, debugstr_w(func), debugstr_w(expr), arg ); RaiseException( STATUS_INVALID_CRUNTIME_PARAMETER, EXCEPTION_NONCONTINUABLE, 0, NULL ); } } /* _get_invalid_parameter_handler - not exported in native msvcrt, added in msvcr80 */ _invalid_parameter_handler CDECL _get_invalid_parameter_handler(void) { TRACE("\n"); return invalid_parameter_handler; } /* _set_invalid_parameter_handler - not exproted in native msvcrt, added in msvcr80 */ _invalid_parameter_handler CDECL _set_invalid_parameter_handler( _invalid_parameter_handler handler) { _invalid_parameter_handler old = invalid_parameter_handler; TRACE("(%p)\n", handler); invalid_parameter_handler = handler; return old; } /* EOF */