GCC>=8 supports truncation checking, however the logic is somewhat fragile when it comes to evaluating strncpy().
In buffer.h we have implemented a wrapper called strncpynt() which ensures we always do the right hting in the code and reduce the chance of having bugs. This said, it seems that the gcc logic is not able to always understand if we are doing the right thing and throws a false positive. Toa void the noise, disable truncation checking on Linux by default. Signed-off-by: Antonio Quartulli <a...@unstable.cc> --- configure.ac | 1 + 1 file changed, 1 insertion(+) diff --git a/configure.ac b/configure.ac index 4159e450..807804e5 100644 --- a/configure.ac +++ b/configure.ac @@ -1283,6 +1283,7 @@ AC_DEFUN([ACL_CHECK_ADD_COMPILE_FLAGS], [ [AC_MSG_RESULT([no]); CFLAGS="$old_cflags"])] ) +ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-stringop-truncation]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-unused-function]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-unused-parameter]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wall]) -- 2.24.0 _______________________________________________ Openvpn-devel mailing list Openvpnfirstname.lastname@example.org https://lists.sourceforge.net/lists/listinfo/openvpn-devel