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/* $NetBSD: errmsg.c,v 1.8 2003/04/03 17:14:24 christos Exp $ */
/*
* Copyright (c) 1991 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the rights
* to redistribute these changes.
*/
/*****************************************************************
* HISTORY
* 04-Mar-85 Rudy Nedved (ern) at Carnegie-Mellon University
* Create a CMU version of the BBN errmsg routine from scratch. It
* differs from the BBN errmsg routine in the fact that it uses a
* negative value to indicate using the current errno value...the
* BBN uses a negative OR zero value.
*/
#include "supcdefs.h"
#include "supextern.h"
#ifndef __NetBSD__
static char *itoa(char *, unsigned);
static char *
itoa(char *p, unsigned n)
{
if (n >= 10)
p = itoa(p, n / 10);
*p++ = (n % 10) + '0';
return (p);
}
#endif
const char *
errmsg(int cod)
{
#ifndef errno
extern int errno;
extern int sys_nerr;
extern char *sys_errlist[];
static char unkmsg[] = "Unknown error ";
static char unk[sizeof(unkmsg) + 11]; /* trust us */
#endif
if (cod < 0)
cod = errno;
#ifndef errno
if ((cod >= 0) && (cod < sys_nerr))
return (sys_errlist[cod]);
strcpy(unk, unkmsg);
*itoa(&unk[sizeof(unkmsg) - 1], cod) = '\0';
return (unk);
#else
return strerror(cod);
#endif
}
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