addr: allow constructing all-zero addresses

Allow easy contruction of all-zero addresses by not passing a buf to
copy. Since the object is allocated with calloc, the address data will
default to all-zero, and only the length needs to be set.

Signed-off-by: Jonas Gorski <jonas.gorski@bisdn.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/addr.c b/lib/addr.c
index ab4bf22..d0b5f33 100644
--- a/lib/addr.c
+++ b/lib/addr.c
@@ -226,7 +226,7 @@ struct nl_addr *nl_addr_build(int family, const void *buf, size_t size)
 		addr->a_prefixlen = size*8;
 	}
 
-	if (size)
+	if (size && buf)
 		memcpy(addr->a_addr, buf, size);
 
 	return addr;