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- /* Version of strerror() for systems that need it.
- Copyright (C) 1991 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.
-
- */
-
- extern int sys_nerr;
- extern char *sys_errlist[];
-
- char *
- strerror (code)
- int code;
- {
- return (((code < 0) || (code >= sys_nerr))
- ? "(unknown error)"
- : sys_errlist [code]);
- }
-