windows-nt/Source/XPSP1/NT/base/crts/crtw32/misc/wrt2err.c

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2020-09-26 03:20:57 -05:00
/***
*wrt2err.c - write an LSTRING to stderr (Win32 version)
*
* Copyright (c) 1989-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This module contains a routine __wrt2err that writes an LSTRING
* (one byte length followed by the several bytes of the string)
* to the standard error handle (2). This is a helper routine used
* for MATH error messages (and also FORTRAN error messages).
*
*Revision History:
* 06-30-89 PHG module created, based on asm version
* 03-16-90 GJF Made calling type _CALLTYPE1, added #include
* <cruntime.h> and fixed the copyright. Also, cleaned
* up the formatting a bit.
* 07-24-90 SBM Removed '32' from API names
* 10-04-90 GJF New-style function declarator.
* 12-04-90 SRW Changed to include <oscalls.h> instead of <doscalls.h>
* 04-26-91 SRW Removed level 3 warnings
* 07-18-91 GJF Replaced call to DbgPrint with WriteFile to standard
* error handle [_WIN32_].
* 04-06-93 SKS Add __cdecl keyword
* 09-06-94 CFW Remove Cruiser support.
* 12-03-94 SKS Clean up OS/2 references
* 06-13-95 GJF Replaced _osfhnd[] with _osfhnd() (macro referencing
* field in ioinfo struct).
*
*******************************************************************************/
#ifndef _POSIX_
#include <cruntime.h>
#include <oscalls.h>
#include <internal.h>
/***
*__wrt2err(msg) - write an LSTRING to stderr
*
*Purpose:
* Takes a pointer to an LSTRING which is to be written to standard error.
* An LSTRING is a one-byte length followed by that many bytes for the
* character string (as opposed to a null-terminated string).
*
*Entry:
* char *msg = pointer to LSTRING to write to standard error.
*
*Exit:
* Nothing returned.
*
*Exceptions:
* None handled.
*
*******************************************************************************/
void __cdecl __wrt2err (
char *msg
)
{
unsigned long length; /* length of string to write */
unsigned long numwritten; /* number of bytes written */
length = *msg++; /* 1st byte is length */
/* write the message to stderr */
WriteFile((HANDLE)_osfhnd(2), msg, length, &numwritten, NULL);
}
#endif /* _POSIX_ */