diff --git a/bt-host.c b/bt-host.c
index 2092754..2da3c32 100644
--- a/bt-host.c
+++ b/bt-host.c
@@ -171,7 +171,7 @@ struct HCIInfo *bt_host_hci(const char *id)
     hci_filter_all_ptypes(&flt);
     hci_filter_all_events(&flt);
 
-    if (setsockopt(fd, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) {
+    if (qemu_setsockopt(fd, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) {
         fprintf(stderr, "qemu: Can't set HCI filter on socket (%i)\n", errno);
         return 0;
     }
diff --git a/gdbstub.c b/gdbstub.c
index 43b7d4d..decb505 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -2887,7 +2887,7 @@ static int gdbserver_open(int port)
 
     /* allow fast reuse */
     val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val));
+    qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 
     sockaddr.sin_family = AF_INET;
     sockaddr.sin_port = htons(port);
diff --git a/net/socket.c b/net/socket.c
index 396dc8c..d8b35a2 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -262,8 +262,7 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
     }
 
     val = 1;
-    ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
-                   (const char *)&val, sizeof(val));
+    ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
     if (ret < 0) {
         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
         goto fail;
@@ -283,8 +282,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
         imr.imr_interface.s_addr = htonl(INADDR_ANY);
     }
 
-    ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
-                     (const char *)&imr, sizeof(struct ip_mreq));
+    ret = qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+                          &imr, sizeof(struct ip_mreq));
     if (ret < 0) {
         perror("setsockopt(IP_ADD_MEMBERSHIP)");
         goto fail;
@@ -292,8 +291,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
 
     /* Force mcast msgs to loopback (eg. several QEMUs in same host */
     loop = 1;
-    ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
-                   (const char *)&loop, sizeof(loop));
+    ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
+                          &loop, sizeof(loop));
     if (ret < 0) {
         perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
         goto fail;
@@ -301,8 +300,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
 
     /* If a bind address is given, only send packets from that address */
     if (localaddr != NULL) {
-        ret = setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
-                         (const char *)localaddr, sizeof(*localaddr));
+        ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
+                              localaddr, sizeof(*localaddr));
         if (ret < 0) {
             perror("setsockopt(IP_MULTICAST_IF)");
             goto fail;
@@ -521,7 +520,7 @@ static int net_socket_listen_init(NetClientState *peer,
 
     /* allow fast reuse */
     val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
+    qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 
     ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
     if (ret < 0) {
@@ -659,8 +658,8 @@ static int net_socket_udp_init(NetClientState *peer,
         return -1;
     }
     val = 1;
-    ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
-                   (const char *)&val, sizeof(val));
+    ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
+                          &val, sizeof(val));
     if (ret < 0) {
         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
         closesocket(fd);
diff --git a/slirp/misc.c b/slirp/misc.c
index d4df972..6b9c2c4 100644
--- a/slirp/misc.c
+++ b/slirp/misc.c
@@ -212,9 +212,9 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
                 } while (so->s < 0 && errno == EINTR);
                 closesocket(s);
                 opt = 1;
-                setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int));
+                qemu_setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
                 opt = 1;
-                setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int));
+                qemu_setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
 		socket_set_nonblock(so->s);
 
 		/* Append the telnet options now */
diff --git a/slirp/socket.c b/slirp/socket.c
index bb639ae..8e8819c 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -627,7 +627,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 	addr.sin_port = hport;
 
 	if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) ||
-	    (setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
+	    (qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)) < 0) ||
 	    (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
 	    (listen(s,1) < 0)) {
 		int tmperrno = errno; /* Don't clobber the real reason we failed */
@@ -642,7 +642,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 #endif
 		return NULL;
 	}
-	setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
+	qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
 
 	getsockname(s,(struct sockaddr *)&addr,&addrlen);
 	so->so_fport = addr.sin_port;
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
index 7b7ad60..84a6bb5 100644
--- a/slirp/tcp_subr.c
+++ b/slirp/tcp_subr.c
@@ -338,9 +338,9 @@ int tcp_fconnect(struct socket *so)
 
     socket_set_nonblock(s);
     opt = 1;
-    setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(opt ));
+    qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
     opt = 1;
-    setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(opt ));
+    qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(opt));
 
     addr.sin_family = AF_INET;
     if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
@@ -427,9 +427,9 @@ void tcp_connect(struct socket *inso)
     }
     socket_set_nonblock(s);
     opt = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int));
+    qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
     opt = 1;
-    setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int));
+    qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
     socket_set_nodelay(s);
 
     so->so_fport = addr.sin_port;
diff --git a/slirp/udp.c b/slirp/udp.c
index 9286cb7..b105f87 100644
--- a/slirp/udp.c
+++ b/slirp/udp.c
@@ -372,7 +372,7 @@ udp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 		udp_detach(so);
 		return NULL;
 	}
-	setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
+	qemu_setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
 
 	getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
 	so->so_fport = addr.sin_port;
diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index 83e4e08..d70bbf0 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -156,12 +156,12 @@ int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp)
             continue;
         }
 
-        setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
+        qemu_setsockopt(slisten, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 #ifdef IPV6_V6ONLY
         if (e->ai_family == PF_INET6) {
             /* listen on both ipv4 and ipv6 */
-            setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
-                sizeof(off));
+            qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off,
+                            sizeof(off));
         }
 #endif
 
@@ -229,7 +229,7 @@ static void wait_for_connect(void *opaque)
     qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
 
     do {
-        rc = getsockopt(s->fd, SOL_SOCKET, SO_ERROR, (void *) &val, &valsize);
+        rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize);
     } while (rc == -1 && socket_error() == EINTR);
 
     /* update rc to contain error */
@@ -456,7 +456,7 @@ int inet_dgram_opts(QemuOpts *opts, Error **errp)
         error_set_errno(errp, errno, QERR_SOCKET_CREATE_FAILED);
         goto err;
     }
-    setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
+    qemu_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 
     /* bind socket */
     if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) {
