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/* Print a message describing error code.
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Copyright (C) 2008-2017 Free Software Foundation, Inc.
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Written by Bruno Haible and Simon Josefsson.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "strerror-override.h"
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/* Use the system functions, not the gnulib overrides in this file. */
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#undef fprintf
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void
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perror (const char *string)
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{
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char stackbuf[STACKBUF_LEN];
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int ret;
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/* Our implementation guarantees that this will be a non-empty
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string, even if it returns EINVAL; and stackbuf should be sized
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large enough to avoid ERANGE. */
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ret = strerror_r (errno, stackbuf, sizeof stackbuf);
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if (ret == ERANGE)
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abort ();
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if (string != NULL && *string != '\0')
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fprintf (stderr, "%s: %s\n", string, stackbuf);
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else
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fprintf (stderr, "%s\n", stackbuf);
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}
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