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/* Copyright (C) 1993-2020 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <libintl.h>
#include <stdio.h>
#include <string.h>
#include <mach/error.h>
#include <errorlib.h>
#include <sys/param.h>
#include <_itoa.h>
/* It is critical here that we always use the `dcgettext' function for
the message translation. Since <libintl.h> only defines the macro
`dgettext' to use `dcgettext' for optimizing programs this is not
always guaranteed. */
#ifndef dgettext
# include <locale.h> /* We need LC_MESSAGES. */
# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
#endif
/* Return a string describing the errno code in ERRNUM. */
char *
__strerror_r (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)
{
/* Buffer we use to print the number in. For a maximum size for
`int' of 8 bytes we never need more than 20 digits. */
char numbuf[21];
const char *unk = _("Error in unknown error system: ");
const size_t unklen = strlen (unk);
char *p, *q;
numbuf[20] = '\0';
p = _itoa_word (errnum, &numbuf[20], 16, 1);
/* Now construct the result while taking care for the destination
buffer size. */
q = __mempcpy (buf, unk, MIN (unklen, buflen));
if (unklen < buflen)
memcpy (q, p, MIN (&numbuf[21] - p, buflen - unklen));
/* Terminate the string in any case. */
if (buflen > 0)
buf[buflen - 1] = '\0';
return buf;
}
es = &__mach_error_systems[system];
if (sub >= es->max_sub)
return (char *) es->bad_sub;
if (code >= es->subsystem[sub].max_code)
{
/* Buffer we use to print the number in. For a maximum size for
`int' of 8 bytes we never need more than 20 digits. */
char numbuf[21];
const char *unk = _("Unknown error ");
const size_t unklen = strlen (unk);
char *p, *q;
size_t len = strlen (es->subsystem[sub].subsys_name);
numbuf[20] = '\0';
p = _itoa_word (errnum, &numbuf[20], 10, 0);
/* Now construct the result while taking care for the destination
buffer size. */
q = __mempcpy (buf, unk, MIN (unklen, buflen));
if (unklen < buflen)
{
q = __mempcpy (q, es->subsystem[sub].subsys_name,
MIN (len, buflen - unklen));
if (unklen + len < buflen)
{
*q++ = ' ';
if (unklen + len + 1 < buflen)
memcpy (q, p,
MIN (&numbuf[21] - p, buflen - unklen - len - 1));
}
}
/* Terminate the string in any case. */
if (buflen > 0)
buf[buflen - 1] = '\0';
return buf;
}
return (char *) _(es->subsystem[sub].codes[code]);
}
libc_hidden_def (__strerror_r)
weak_alias (__strerror_r, strerror_r)
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