From: Dmitry V. Levin <ldv@altlinux.org>
Date: Wed, 21 Dec 2016 15:36:50 +0000 (+0000)
Subject: msghdr: cast pointers to kernel_ureg_t instead of long
X-Git-Tag: v4.16~249
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=aa350a2b9714c1f5bb0cce9a62a2c1f7919ef66e;p=strace

msghdr: cast pointers to kernel_ureg_t instead of long

* msghdr.c (print_struct_msghdr): Cast msghdr.msg_name pointer
to kernel_ureg_t instead of long.
(dumpiov_in_msghdr): Cast msghdr.msg_iov pointer to kernel_ureg_t
instead of long.
---

diff --git a/msghdr.c b/msghdr.c
index 727d2ea9..75efcd58 100644
--- a/msghdr.c
+++ b/msghdr.c
@@ -340,7 +340,7 @@ print_struct_msghdr(struct tcb *tcp, const struct msghdr *msg,
 
 	tprints("{msg_name=");
 	const int family =
-		decode_sockaddr(tcp, (long) msg->msg_name, msg_namelen);
+		decode_sockaddr(tcp, (kernel_ureg_t) msg->msg_name, msg_namelen);
 	const enum iov_decode decode =
 		(family == AF_NETLINK) ? IOV_DECODE_NETLINK : IOV_DECODE_STR;
 
@@ -394,8 +394,10 @@ dumpiov_in_msghdr(struct tcb *tcp, long addr, unsigned long data_size)
 {
 	struct msghdr msg;
 
-	if (fetch_struct_msghdr(tcp, addr, &msg))
-		dumpiov_upto(tcp, msg.msg_iovlen, (long)msg.msg_iov, data_size);
+	if (fetch_struct_msghdr(tcp, addr, &msg)) {
+		dumpiov_upto(tcp, msg.msg_iovlen,
+			     (kernel_ureg_t) msg.msg_iov, data_size);
+	}
 }
 
 SYS_FUNC(sendmsg)