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| author | Alejandro Colomar <alx@kernel.org> | 2023-11-15 22:31:02 +0100 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-11-16 15:26:45 +0100 |
| commit | fb3cf24b56f3d6c14a566161dc40a29e5406b41c (patch) | |
| tree | 51751c1c75262b7495c25d014b42250db4cef57d | |
| parent | 8711bc63fef4c6e186039bfb1ed543485ae478db (diff) | |
lib/strncpy.h: Add STRNCPY() wrapper for strncpy(3)
This wrapper calculates the destination buffer's size, to avoid errors
in the size calculation.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | lib/Makefile.am | 1 | ||||
| -rw-r--r-- | lib/strncpy.h | 21 |
2 files changed, 22 insertions, 0 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am index 96dfefe2..bfe13c33 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -141,6 +141,7 @@ libshadow_la_SOURCES = \ stpecpy.h \ stpeprintf.c \ stpeprintf.h \ + strncpy.h \ strtcpy.c \ strtcpy.h \ strtoday.c \ diff --git a/lib/strncpy.h b/lib/strncpy.h new file mode 100644 index 00000000..90e76f0f --- /dev/null +++ b/lib/strncpy.h @@ -0,0 +1,21 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_STRNCPY_H_ +#define SHADOW_INCLUDE_LIB_STRNCPY_H_ + + +#include <config.h> + +#include <string.h> + +#include "sizeof.h" + + +#define STRNCPY(dst, src) strncpy(dst, src, SIZEOF_ARRAY(dst)) + + +#endif // include guard |