sys/net* : for pointers replace 0 with NULL.

Mostly cosmetical, no functional change.

Found with devel/coccinelle.

5 files changed, 10 insertions, 10 deletions

diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 797093a..48f05e7 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -1823,7 +1823,7 @@ in6_ifawithifp(struct ifnet *ifp, struct in6_addr *dst)
 {
 	int dst_scope =	in6_addrscope(dst), blen = -1, tlen;
 	struct ifaddr *ifa;
-	struct in6_ifaddr *besta = 0;
+	struct in6_ifaddr *besta = NULL;
 	struct in6_ifaddr *dep[2];	/* last-resort: deprecated */
 
 	dep[0] = dep[1] = NULL;
diff --git a/sys/netinet6/ip6_output.c b/sys/netinet6/ip6_output.c
index 7895139..f64d305 100644
--- a/sys/netinet6/ip6_output.c
+++ b/sys/netinet6/ip6_output.c
@@ -256,7 +256,7 @@ ip6_fragment(struct ifnet *ifp, struct mbuf *m0, int hlen, u_char nextproto,
 			ip6f->ip6f_offlg |= IP6F_MORE_FRAG;
 		mhip6->ip6_plen = htons((u_short)(mtu + hlen +
 		    sizeof(*ip6f) - sizeof(struct ip6_hdr)));
-		if ((m_frgpart = m_copy(m0, off, mtu)) == 0) {
+		if ((m_frgpart = m_copy(m0, off, mtu)) == NULL) {
 			IP6STAT_INC(ip6s_odropped);
 			return (ENOBUFS);
 		}
@@ -503,7 +503,7 @@ ip6_output(struct mbuf *m0, struct ip6_pktopts *opt,
 	/*
 	 * Route packet.
 	 */
-	if (ro == 0) {
+	if (ro == NULL) {
 		ro = &ip6route;
 		bzero((caddr_t)ro, sizeof(*ro));
 	}
@@ -1116,7 +1116,7 @@ ip6_insert_jumboopt(struct ip6_exthdrs *exthdrs, u_int32_t plen)
 	 * jumbo payload option, allocate a cluster to store the whole options.
 	 * Otherwise, use it to store the options.
 	 */
-	if (exthdrs->ip6e_hbh == 0) {
+	if (exthdrs->ip6e_hbh == NULL) {
 		mopt = m_get(M_NOWAIT, MT_DATA);
 		if (mopt == NULL)
 			return (ENOBUFS);
@@ -1198,7 +1198,7 @@ ip6_insertfraghdr(struct mbuf *m0, struct mbuf *m, int hlen,
 	if (hlen > sizeof(struct ip6_hdr)) {
 		n = m_copym(m0, sizeof(struct ip6_hdr),
 		    hlen - sizeof(struct ip6_hdr), M_NOWAIT);
-		if (n == 0)
+		if (n == NULL)
 			return (ENOBUFS);
 		m->m_next = n;
 	} else
@@ -2515,7 +2515,7 @@ int
 ip6_setpktopts(struct mbuf *control, struct ip6_pktopts *opt,
     struct ip6_pktopts *stickyopt, struct ucred *cred, int uproto)
 {
-	struct cmsghdr *cm = 0;
+	struct cmsghdr *cm = NULL;
 
 	if (control == NULL || opt == NULL)
 		return (EINVAL);
diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index 6fee830..aa7baad 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -1510,7 +1510,7 @@ pfxlist_onlink_check()
 			    find_pfxlist_reachable_router(pr) == NULL)
 				pr->ndpr_stateflags |= NDPRF_DETACHED;
 			if ((pr->ndpr_stateflags & NDPRF_DETACHED) != 0 &&
-			    find_pfxlist_reachable_router(pr) != 0)
+			    find_pfxlist_reachable_router(pr) != NULL)
 				pr->ndpr_stateflags &= ~NDPRF_DETACHED;
 		}
 	} else {
diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c
index 972eb9f..2b95e48 100644
--- a/sys/netinet6/raw_ip6.c
+++ b/sys/netinet6/raw_ip6.c
@@ -163,7 +163,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto)
 	struct mbuf *m = *mp;
 	register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
 	register struct inpcb *in6p;
-	struct inpcb *last = 0;
+	struct inpcb *last = NULL;
 	struct mbuf *opts = NULL;
 	struct sockaddr_in6 fromsa;
 
diff --git a/sys/netinet6/udp6_usrreq.c b/sys/netinet6/udp6_usrreq.c
index ebcf6d6..03479fd 100644
--- a/sys/netinet6/udp6_usrreq.c
+++ b/sys/netinet6/udp6_usrreq.c
@@ -1212,9 +1212,9 @@ udp6_send(struct socket *so, int flags, struct mbuf *m,
 #ifdef INET
 	if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0) {
 		int hasv4addr;
-		struct sockaddr_in6 *sin6 = 0;
+		struct sockaddr_in6 *sin6 = NULL;
 
-		if (addr == 0)
+		if (addr == NULL)
 			hasv4addr = (inp->inp_vflag & INP_IPV4);
 		else {
 			sin6 = (struct sockaddr_in6 *)addr;