nl: Provide API to specify the default buffer size when receiving netlink messages

New functions:
  nl_socket_set_msg_buf_size(sk, size)
  nl_socket_get_msg_buf_size(sk)

Default remains getpagesize()

Signed-off-by: Thomas Graf <tgraf@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/nl.c b/lib/nl.c
index ea3e0871..5b37c2a3 100644
--- a/lib/nl.c
+++ b/lib/nl.c
@@ -447,7 +447,7 @@ int nl_recv(struct nl_sock *sk, struct sockaddr_nl *nla,
 	if (page_size == 0)
 		page_size = getpagesize();
 
-	iov.iov_len = page_size;
+	iov.iov_len = sk->s_bufsize ? : page_size;
 	iov.iov_base = *buf = malloc(iov.iov_len);
 
 	if (sk->s_flags & NL_SOCK_PASSCRED) {