diff options
Diffstat (limited to 'src/util/syserror.cpp')
-rw-r--r-- | src/util/syserror.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/util/syserror.cpp b/src/util/syserror.cpp new file mode 100644 index 0000000000..bcd249200d --- /dev/null +++ b/src/util/syserror.cpp @@ -0,0 +1,29 @@ +// Copyright (c) 2020-2022 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#if defined(HAVE_CONFIG_H) +#include <config/bitcoin-config.h> +#endif + +#include <tinyformat.h> +#include <util/syserror.h> + +#include <cstring> + +std::string SysErrorString(int err) +{ + char buf[256]; + buf[0] = 0; + /* Too bad there are two incompatible implementations of the + * thread-safe strerror. */ + const char *s; +#ifdef STRERROR_R_CHAR_P /* GNU variant can return a pointer outside the passed buffer */ + s = strerror_r(err, buf, sizeof(buf)); +#else /* POSIX variant always returns message in buffer */ + s = buf; + if (strerror_r(err, buf, sizeof(buf))) + buf[0] = 0; +#endif + return strprintf("%s (%d)", s, err); +} |