/* Copyright (C) 1993, 1995 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 #include #include #include #include "../stdio/_itoa.h" /* Return a string describing the errno code in ERRNUM. */ char * _strerror_internal (int errnum, char *buf, size_t buflen) { 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 || ! __mach_error_systems[system].bad_sub) { const char *unk = _("Error in unknown error system: "); const size_t unklen = strlen (unk); char *p = buf + buflen; *p-- = '\0'; p = _itoa (errnum, p, 16, 1); return memcpy (p - unklen, unk, unklen); } es = &__mach_error_systems[system]; if (sub >= es->max_sub) return (char *) es->bad_sub; if (code >= es->subsystem[sub].max_code) { const char *unk = _("Unknown error "); const size_t unklen = strlen (unk); char *p = buf + buflen; size_t len = strlen (es->subsystem[sub].subsys_name); *p-- = '\0'; p = _itoa (errnum, p, 16, 1); *p-- = ' '; p = memcpy (p - len, es->subsystem[sub].subsys_name, len); return memcpy (p - unklen, unk, unklen); } return (char *) _(es->subsystem[sub].codes[code]); }