From 0c9c620f39e56c42802504003fd05664aba670a4 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Wed, 10 Mar 2010 14:50:33 -0800
Subject: fix type-punned pointer warnings from gcc

R=rsc
http://codereview.appspot.com/396042
---
 src/lib9/_p9dialparse.c | 2 +-
 src/lib9/sendfd.c       | 2 +-
 src/lib9/truerand.c     | 4 +++-
 3 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'src/lib9')

diff --git a/src/lib9/_p9dialparse.c b/src/lib9/_p9dialparse.c
index b7f5385a..0c84ecdb 100644
--- a/src/lib9/_p9dialparse.c
+++ b/src/lib9/_p9dialparse.c
@@ -71,7 +71,7 @@ parseip(char *host, u32int *pip)
 			return -1;
 		break;
 	}
-	*pip = *(u32int*)addr;
+	memmove(pip, addr, 4);
 	return 0;
 }
 
diff --git a/src/lib9/sendfd.c b/src/lib9/sendfd.c
index 10966828..b5e332ca 100644
--- a/src/lib9/sendfd.c
+++ b/src/lib9/sendfd.c
@@ -46,7 +46,7 @@ sendfd(int s, int fd)
 	cmsg->cmsg_len = CMSG_LEN(sizeof(int));
 	cmsg->cmsg_level = SOL_SOCKET;
 	cmsg->cmsg_type = SCM_RIGHTS;
-	*(int*)CMSG_DATA(cmsg) = fd;
+	memmove(CMSG_DATA(cmsg), &fd, sizeof(int));
 
 	if((n=sendmsg(s, &msg, 0)) != iov.iov_len)
 		return -1;
diff --git a/src/lib9/truerand.c b/src/lib9/truerand.c
index 03f3dce1..45f739e1 100644
--- a/src/lib9/truerand.c
+++ b/src/lib9/truerand.c
@@ -6,6 +6,7 @@ truerand(void)
 {
 	int i, n;
 	uchar buf[sizeof(ulong)];
+	ulong x;
 	static int randfd = -1;
 	static char *randfile;
 
@@ -21,5 +22,6 @@ truerand(void)
 	for(i=0; i<sizeof(buf); i += n)
 		if((n = readn(randfd, buf+i, sizeof(buf)-i)) < 0)
 			sysfatal("can't read %s: %r", randfile);
-	return *((ulong*)buf);
+	memmove(&x, buf, sizeof x);
+	return x;
 }
-- 
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