src: add xzalloc_array() and use it to allocate the expression hashtable

Otherwise, assertion to ensure that no colission occur is hit due to
uninitialized hashtable memory area:

nft: netlink_delinearize.c:1741: expr_handler_init: Assertion `expr_handle_ht[hash] == NULL' failed.

Fixes: c4058f96c6a5 ("netlink_delinearize: Fix suspicious calloc() call")
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/utils.h b/include/utils.h
index f45f2513..ffbe2cbb 100644
--- a/include/utils.h
+++ b/include/utils.h
@@ -133,6 +133,7 @@ extern void *xmalloc(size_t size);
 extern void *xmalloc_array(size_t nmemb, size_t size);
 extern void *xrealloc(void *ptr, size_t size);
 extern void *xzalloc(size_t size);
+extern void *xzalloc_array(size_t nmemb, size_t size);
 extern char *xstrdup(const char *s);
 extern void xstrunescape(const char *in, char *out);