tree 1c045d0c847e1a7a4e07433f21c4c3de240390a6
parent 54045443a4607b364c01bd4e42b1ed92e5731823
author Vladimir Oltean <vladimir.oltean@nxp.com> 1632741721 +0300
committer Ramon Fried <rfried.dev@gmail.com> 1632844257 +0300

scripts: ensure the cocci script for miiphy_register does not leave NULL-unterminated strings

strncpy() simply bails out when copying a source string whose size
exceeds the destination string size, potentially leaving the destination
string unterminated.

One possible way to address is to pass MDIO_NAME_LEN - 1 and a
previously zero-initialized destination string, but this is more
difficult to maintain.

The chosen alternative is to use strlcpy(), which properly limits the
copy len in the (srclen >= size) case to "size - 1", and which is also
more efficient than the strncpy() byte-by-byte implementation by using
memcpy. The destination string returned by strlcpy() is always NULL
terminated.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>