cmsg_len is supposed to be socklen_t according to standards, but it was made size_t on Linux, see BZ 16919. For ports that have it socklen_t, SIZE_MAX is too large. We can however explicitly cast it to the type of cmsg_len so it will fit according to that type. --- socket/tst-cmsghdr-skeleton.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/socket/tst-cmsghdr-skeleton.c b/socket/tst-cmsghdr-skeleton.c index 296a0a8581..9516139f87 100644 --- a/socket/tst-cmsghdr-skeleton.c +++ b/socket/tst-cmsghdr-skeleton.c @@ -49,7 +49,7 @@ RUN_TEST_FUNCNAME (CMSG_NXTHDR_IMPL) (void) /* The first header length is so big, using it would cause an overflow. */ cmsg = CMSG_FIRSTHDR (&m); TEST_VERIFY_EXIT ((char *) cmsg == cmsgbuf); - cmsg->cmsg_len = SIZE_MAX; + cmsg->cmsg_len = (__typeof (cmsg->cmsg_len)) SIZE_MAX; cmsg = CMSG_NXTHDR_IMPL (&m, cmsg); TEST_VERIFY_EXIT (cmsg == NULL); -- 2.39.2
