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30 lines
844 B
C++
30 lines
844 B
C++
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// Copyright (c) 2020-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#if defined(HAVE_CONFIG_H)
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#include <config/bitcoin-config.h>
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#endif
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#include <tinyformat.h>
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#include <util/syserror.h>
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#include <cstring>
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std::string SysErrorString(int err)
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{
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char buf[256];
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buf[0] = 0;
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/* Too bad there are two incompatible implementations of the
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* thread-safe strerror. */
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const char *s;
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#ifdef STRERROR_R_CHAR_P /* GNU variant can return a pointer outside the passed buffer */
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s = strerror_r(err, buf, sizeof(buf));
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#else /* POSIX variant always returns message in buffer */
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s = buf;
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if (strerror_r(err, buf, sizeof(buf)))
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buf[0] = 0;
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#endif
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return strprintf("%s (%d)", s, err);
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}
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