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libbpf: Poison strlcpy()
author
Rong Tao
<rongtao@cestc.cn>
Thu, 5 Jan 2023 14:36:33 +0000
(22:36 +0800)
committer
Daniel Borkmann
<daniel@iogearbox.net>
Fri, 6 Jan 2023 15:57:23 +0000
(16:57 +0100)
Since commit
9fc205b413b3
("libbpf: Add sane strncpy alternative and use
it internally") introduce libbpf_strlcpy(), thus add strlcpy() to a poison
list to prevent accidental use of it.
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link:
https://lore.kernel.org/bpf/tencent_5695A257C4D16B4413036BA1DAACDECB0B07@qq.com
tools/lib/bpf/libbpf_internal.h
patch
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diff --git
a/tools/lib/bpf/libbpf_internal.h
b/tools/lib/bpf/libbpf_internal.h
index
e4d0566
..
fbaf683
100644
(file)
--- a/
tools/lib/bpf/libbpf_internal.h
+++ b/
tools/lib/bpf/libbpf_internal.h
@@
-20,8
+20,8
@@
/* make sure libbpf doesn't use kernel-only integer typedefs */
#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
-/* prevent accidental re-addition of reallocarray() */
-#pragma GCC poison reallocarray
+/* prevent accidental re-addition of reallocarray()
/strlcpy()
*/
+#pragma GCC poison reallocarray
strlcpy
#include "libbpf.h"
#include "btf.h"