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d66f43666a
It's often inconvenient to switch sign of error when passing it into libbpf_strerror_r. It's better for it to handle that automatically. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Reviewed-by: Stanislav Fomichev <sdf@google.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
18 lines
522 B
C
18 lines
522 B
C
// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
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#undef _GNU_SOURCE
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#include <string.h>
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#include <stdio.h>
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#include "str_error.h"
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/*
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* Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl
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* libc, while checking strerror_r() return to avoid having to check this in
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* all places calling it.
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*/
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char *libbpf_strerror_r(int err, char *dst, int len)
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{
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int ret = strerror_r(err < 0 ? -err : err, dst, len);
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if (ret)
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snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret);
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return dst;
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}
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