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4 Commits

Author SHA1 Message Date
Alejandro Colomar
93a5c47c2c lib/: Use ATTR_STRING() on stpecpy() and strtcpy() 
These functions consume a source string.  Document that.  There's no way
to mark that they also produce a string in dst, though.  That will be up
to the static analyzer to guess.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
 2023-12-04 12:22:47 +01:00
Alejandro Colomar
ad1e0e9f96 lib/string/strtcpy.h: Don't use a ternary op, to silence a -Wsign-compare warning 
Signed-off-by: Alejandro Colomar <alx@kernel.org>
 2023-12-04 11:45:09 +01:00
Alejandro Colomar
fc8389331e lib/string/: Fortify source of strtcpy(), stpecpy(), and zustr2stp() 
By writing the terminating null byte via stpcpy(3), we take advantage of
_FORTIFY_SOURCE for the last byte, which was unprotected before this
commit.

Reported-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
 2023-12-03 22:24:29 -06:00
Alejandro Colomar
dbb37b1b31 lib/string/: Move string-related files to string/ subdir 
Signed-off-by: Alejandro Colomar <alx@kernel.org>
 2023-12-03 12:22:11 -06:00