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initial import

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This commit is contained in:
Roland McGrath
1995-02-18 01:27:10 +00:00
commit 28f540f45b
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sysdeps/mach/_strerror.c Normal file
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/* Copyright (C) 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stdio.h>
#include <string.h>
#include <mach/error.h>
#include <mach/errorlib.h>
/* Return a string describing the errno code in ERRNUM. */
char *
DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
{
int system;
int sub;
int code;
const struct error_system *es;
extern void __mach_error_map_compat (int *);
__mach_error_map_compat (&errnum);
system = err_get_system (errnum);
sub = err_get_sub (errnum);
code = err_get_code (errnum);
if (system > err_max_system)
{
sprintf (buf, "Unknown error system %d", system);
return buf;
}
es = &__mach_error_systems[system];
if (sub >= es->max_sub)
return (char *) es->bad_sub;
if (code >= es->subsystem[sub].max_code)
{
sprintf (buf, "Unknown error %d in system %d subsystem %d",
code, system, sub);
return buf;
}
return (char *) es->subsystem[sub].codes[code];
}