diff options
Diffstat (limited to 'Documentation/process/deprecated.rst')
| -rw-r--r-- | Documentation/process/deprecated.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/process/deprecated.rst b/Documentation/process/deprecated.rst index 179f2a5625a0..a0ffdc8daef3 100644 --- a/Documentation/process/deprecated.rst +++ b/Documentation/process/deprecated.rst @@ -84,7 +84,7 @@ buffer. This could result in linear overflows beyond the end of the buffer, leading to all kinds of misbehaviors. While `CONFIG_FORTIFY_SOURCE=y` and various compiler flags help reduce the risk of using this function, there is no good reason to add new uses of -this function. The safe replacement is :c:func:`strscpy`. +this function. The safe replacement is stracpy() or strscpy(). strncpy() on NUL-terminated strings ----------------------------------- @@ -93,9 +93,9 @@ will be NUL terminated. This can lead to various linear read overflows and other misbehavior due to the missing termination. It also NUL-pads the destination buffer if the source contents are shorter than the destination buffer size, which may be a needless performance penalty for callers using -only NUL-terminated strings. The safe replacement is :c:func:`strscpy`. -(Users of :c:func:`strscpy` still needing NUL-padding will need an -explicit :c:func:`memset` added.) +only NUL-terminated strings. In this case, the safe replacement is +stracpy() or strscpy(). If, however, the destination buffer still needs +NUL-padding, the safe replacement is stracpy_pad(). If a caller is using non-NUL-terminated strings, :c:func:`strncpy()` can still be used, but destinations should be marked with the `__nonstring @@ -107,7 +107,7 @@ strlcpy() :c:func:`strlcpy` reads the entire source buffer first, possibly exceeding the given limit of bytes to copy. This is inefficient and can lead to linear read overflows if a source string is not NUL-terminated. The -safe replacement is :c:func:`strscpy`. +safe replacement is stracpy() or strscpy(). Variable Length Arrays (VLAs) ----------------------------- |