Add _FORTIFY_SOURCE support for inet_pton

Add function __inet_pton_chk which calls __chk_fail when the size of
argument dst is too small.   inet_pton is redirected to __inet_pton_chk
or __inet_pton_warn when _FORTIFY_SOURCE is > 0.

Also add tests to debug/tst-fortify.c, update the abilist with
__inet_pton_chk and mention inet_pton fortification in maint.texi.

Co-authored-by: Frédéric Bérat <fberat@redhat.com>
Reviewed-by: Florian Weimer <fweimer@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/manual/maint.texi b/manual/maint.texi
index ce6a556c68..b6ee5b6e3b 100644
--- a/manual/maint.texi
+++ b/manual/maint.texi
@@ -305,6 +305,8 @@ The following functions and macros are fortified in @theglibc{}:
 
 @item @code{inet_ntop}
 
+@item @code{inet_pton}
+
 @item @code{longjmp}
 
 @item @code{mbsnrtowcs}