[0/7] netfilter: refactor deprecated strncpy

Message

Justin Stitt Aug. 8, 2023, 10:48 p.m. UTC

`strncpy` is deprecated for use on NUL-terminated destination strings [1].

A suitable replacement is `strscpy` [2] due to the fact that it
guarantees NUL-termination on its destination buffer argument which is
_not_ the case for `strncpy`!

This series of patches aims to swap out `strncpy` for more robust and
less ambiguous interfaces like `strscpy` and `strtomem`. This patch
series, if applied in its entirety, removes most if not all instances of
`strncpy` in the `net/netfilter` directory.

[1]: www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings
[2]: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html

Link: https://github.com/KSPP/linux/issues/90
---
Justin Stitt (7):
      netfilter: ipset: refactor deprecated strncpy
      netfilter: nf_tables: refactor deprecated strncpy
      netfilter: nf_tables: refactor deprecated strncpy
      netfilter: nft_meta: refactor deprecated strncpy
      netfilter: nft_osf: refactor deprecated strncpy to strscpy
      netfilter: x_tables: refactor deprecated strncpy
      netfilter: xtables: refactor deprecated strncpy

 net/netfilter/ipset/ip_set_core.c | 10 +++++-----
 net/netfilter/nft_ct.c            |  2 +-
 net/netfilter/nft_fib.c           |  2 +-
 net/netfilter/nft_meta.c          |  6 +++---
 net/netfilter/nft_osf.c           |  6 +++---
 net/netfilter/x_tables.c          |  5 ++---
 net/netfilter/xt_repldata.h       |  2 +-
 7 files changed, 16 insertions(+), 17 deletions(-)
---
base-commit: 14f9643dc90adea074a0ffb7a17d337eafc6a5cc
change-id: 20230807-net-netfilter-4027219bb6e7

Best regards,
--
Justin Stitt <[e-mail]>