mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
d2e65aa7d6
For instance, 1073741906 leads to system 16, subsystem 0 and code 82, which is in range (max_code is 122), but not defined. Return EINVAL in that case, like
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/* Copyright (C) 1993-2024 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 <errno.h>
|
|
#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
|
|
|
|
/* Fill buf with a string describing the errno code in ERRNUM. */
|
|
int
|
|
__xpg_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 *);
|
|
const char *estr;
|
|
|
|
__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)
|
|
{
|
|
__snprintf (buf, buflen, "%s%X", _("Error in unknown error system: "),
|
|
errnum);
|
|
return EINVAL;
|
|
}
|
|
|
|
es = &__mach_error_systems[system];
|
|
|
|
if (sub >= es->max_sub)
|
|
estr = (const char *) es->bad_sub;
|
|
else if (code >= es->subsystem[sub].max_code)
|
|
{
|
|
__snprintf (buf, buflen, "%s%d", _("Unknown error code: "), code);
|
|
return EINVAL;
|
|
}
|
|
else
|
|
{
|
|
estr = (const char *) _(es->subsystem[sub].codes[code]);
|
|
if (estr == NULL)
|
|
{
|
|
__snprintf (buf, buflen, "%s%d", _("Unknown error code: "), code);
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
size_t estrlen = strlen (estr);
|
|
|
|
/* Terminate the string in any case. */
|
|
if (buflen > 0)
|
|
*((char *) __mempcpy (buf, estr, MIN (buflen - 1, estrlen))) = '\0';
|
|
|
|
return buflen <= estrlen ? ERANGE : 0;
|
|
}
|