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70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <libintl.h>
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#include <netdb.h>
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#include <stdint.h>
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#include <stdio.h>
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#define MSGSTRFIELD(line) MSGSTRFIELD1 (line)
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#define MSGSTRFIELD1(line) str##line
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static const union msgstr_t
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{
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struct
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{
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#define _S(n, s) char MSGSTRFIELD(__LINE__)[sizeof (s)];
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#include "gai_strerror-strs.h"
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#undef _S
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};
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char str[0];
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} msgstr =
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{
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{
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#define _S(n, s) s,
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#include "gai_strerror-strs.h"
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#undef _S
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}
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};
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static const struct
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{
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int16_t code;
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uint16_t idx;
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} msgidx[] =
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{
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#define _S(n, s) { n, offsetof (union msgstr_t, MSGSTRFIELD (__LINE__)) },
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#include "gai_strerror-strs.h"
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#undef _S
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};
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const char *
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gai_strerror (int code)
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{
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const char *result = "Unknown error";
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for (size_t i = 0; i < sizeof (msgidx) / sizeof (msgidx[0]); ++i)
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if (msgidx[i].code == code)
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{
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result = msgstr.str + msgidx[i].idx;
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break;
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}
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return _(result);
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}
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libc_hidden_def (gai_strerror)
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