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/* Version of strerror() for systems that need it.
Copyright (C) 1991, 1992 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
NAME
strerror -- map an error number to an error message string
SYNOPSIS
#include <string.h>
char *strerror (int errnum)
DESCRIPTION
Returns a pointer to a string containing an error message, the
contents of which are implementation defined. The implementation
shall behave as if no library function calls strerror. The string
pointed to shall not be modified by the caller and is only guaranteed
to be valid until a subsequent call to strerror.
BUGS
Requires that the system have sys_errlist and sys_nerr.
*/
#ifndef HAVE_STRERROR
extern int sys_nerr;
extern char *sys_errlist[];
char *
strerror (code)
int code;
{
return (((code < 0) || (code >= sys_nerr))
? "(unknown error)"
: sys_errlist [code]);
}
#endif /* HAVE_STRERROR */
/* end of strerror.c */
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