From d79a8cb46f1078372a2cbe986468eb22b457712b Mon Sep 17 00:00:00 2001
From: laforge <laforge>
Date: Fri, 14 Nov 2003 19:17:45 +0000
Subject: check if received netlink messages are really from the kernel
 (pid==0)

---
 libipq/libipq.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libipq')

diff --git a/libipq/libipq.c b/libipq/libipq.c
index 709c8a2..a25ad4c 100644
--- a/libipq/libipq.c
+++ b/libipq/libipq.c
@@ -171,6 +171,10 @@ static ssize_t ipq_netlink_recvfrom(const struct ipq_handle *h,
 		ipq_errno = IPQ_ERR_RECV;
 		return -1;
 	}
+	if (h->peer.nl_pid != 0) {
+		ipq_errno = IPQ_ERR_RECV;
+		return -1;
+	}
 	if (status == 0) {
 		ipq_errno = IPQ_ERR_NLEOF;
 		return -1;
-- 
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