netinet: for pointers replace 0 with NULL.

These are mostly cosmetical, no functional change.

Found with devel/coccinelle.

Reviewed by:	ae. tuexen

13 files changed, 20 insertions, 20 deletions

diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c
index 7a06beaf7cc0..eac3c1d24782 100644
--- a/sys/netinet/if_ether.c
+++ b/sys/netinet/if_ether.c
@@ -578,7 +578,7 @@ int
 arpresolve(struct ifnet *ifp, int is_gw, struct mbuf *m,
 	const struct sockaddr *dst, u_char *desten, uint32_t *pflags)
 {
-	struct llentry *la = 0;
+	struct llentry *la = NULL;
 
 	if (pflags != NULL)
 		*pflags = 0;
diff --git a/sys/netinet/igmp.c b/sys/netinet/igmp.c
index 2154149bc7b0..dcadec559e68 100644
--- a/sys/netinet/igmp.c
+++ b/sys/netinet/igmp.c
@@ -1469,7 +1469,7 @@ igmp_input(struct mbuf **mp, int *offp, int proto)
 	else
 		minlen += IGMP_MINLEN;
 	if ((!M_WRITABLE(m) || m->m_len < minlen) &&
-	    (m = m_pullup(m, minlen)) == 0) {
+	    (m = m_pullup(m, minlen)) == NULL) {
 		IGMPSTAT_INC(igps_rcv_tooshort);
 		return (IPPROTO_DONE);
 	}
diff --git a/sys/netinet/in_mcast.c b/sys/netinet/in_mcast.c
index f2a985b79ef5..4037dbfbff4d 100644
--- a/sys/netinet/in_mcast.c
+++ b/sys/netinet/in_mcast.c
@@ -1810,7 +1810,7 @@ inp_getmoptions(struct inpcb *inp, struct sockopt *sopt)
 		break;
 
 	case IP_MULTICAST_TTL:
-		if (imo == 0)
+		if (imo == NULL)
 			optval = coptval = IP_DEFAULT_MULTICAST_TTL;
 		else
 			optval = coptval = imo->imo_multicast_ttl;
@@ -1822,7 +1822,7 @@ inp_getmoptions(struct inpcb *inp, struct sockopt *sopt)
 		break;
 
 	case IP_MULTICAST_LOOP:
-		if (imo == 0)
+		if (imo == NULL)
 			optval = coptval = IP_DEFAULT_MULTICAST_LOOP;
 		else
 			optval = coptval = imo->imo_multicast_loop;
diff --git a/sys/netinet/ip_divert.c b/sys/netinet/ip_divert.c
index f23a3a87fe23..233d1af7cda9 100644
--- a/sys/netinet/ip_divert.c
+++ b/sys/netinet/ip_divert.c
@@ -205,7 +205,7 @@ divert_packet(struct mbuf *m, int incoming)
 	}
 	/* Assure header */
 	if (m->m_len < sizeof(struct ip) &&
-	    (m = m_pullup(m, sizeof(struct ip))) == 0)
+	    (m = m_pullup(m, sizeof(struct ip))) == NULL)
 		return;
 	ip = mtod(m, struct ip *);
 
@@ -600,7 +600,7 @@ div_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
 
 	/* Packet must have a header (but that's about it) */
 	if (m->m_len < sizeof (struct ip) &&
-	    (m = m_pullup(m, sizeof (struct ip))) == 0) {
+	    (m = m_pullup(m, sizeof (struct ip))) == NULL) {
 		KMOD_IPSTAT_INC(ips_toosmall);
 		m_freem(m);
 		return EINVAL;
@@ -666,7 +666,7 @@ div_pcblist(SYSCTL_HANDLER_ARGS)
 		return error;
 
 	inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK);
-	if (inp_list == 0)
+	if (inp_list == NULL)
 		return ENOMEM;
 	
 	INP_INFO_RLOCK(&V_divcbinfo);
diff --git a/sys/netinet/ip_icmp.c b/sys/netinet/ip_icmp.c
index cc3e1f514f93..fee980f4cb5a 100644
--- a/sys/netinet/ip_icmp.c
+++ b/sys/netinet/ip_icmp.c
@@ -674,7 +674,7 @@ icmp_reflect(struct mbuf *m)
 	struct in_ifaddr *ia;
 	struct in_addr t;
 	struct nhop4_extended nh_ext;
-	struct mbuf *opts = 0;
+	struct mbuf *opts = NULL;
 	int optlen = (ip->ip_hl << 2) - sizeof(struct ip);
 
 	if (IN_MULTICAST(ntohl(ip->ip_src.s_addr)) ||
@@ -790,7 +790,7 @@ match:
 		 * add on any record-route or timestamp options.
 		 */
 		cp = (u_char *) (ip + 1);
-		if ((opts = ip_srcroute(m)) == 0 &&
+		if ((opts = ip_srcroute(m)) == NULL &&
 		    (opts = m_gethdr(M_NOWAIT, MT_DATA))) {
 			opts->m_len = sizeof(struct in_addr);
 			mtod(opts, struct in_addr *)->s_addr = 0;
diff --git a/sys/netinet/ip_mroute.c b/sys/netinet/ip_mroute.c
index 69e12c3cd5b5..ba21edccbb1d 100644
--- a/sys/netinet/ip_mroute.c
+++ b/sys/netinet/ip_mroute.c
@@ -2601,7 +2601,7 @@ pim_input(struct mbuf **mp, int *offp, int proto)
      * Get the IP and PIM headers in contiguous memory, and
      * possibly the PIM REGISTER header.
      */
-    if (m->m_len < minlen && (m = m_pullup(m, minlen)) == 0) {
+    if (m->m_len < minlen && (m = m_pullup(m, minlen)) == NULL) {
 	CTR1(KTR_IPMF, "%s: m_pullup() failed", __func__);
 	return (IPPROTO_DONE);
     }
diff --git a/sys/netinet/ip_options.c b/sys/netinet/ip_options.c
index 5daf653baa8a..b0504234e306 100644
--- a/sys/netinet/ip_options.c
+++ b/sys/netinet/ip_options.c
@@ -608,7 +608,7 @@ ip_pcbopts(struct inpcb *inp, int optname, struct mbuf *m)
 	/* turn off any old options */
 	if (*pcbopt)
 		(void)m_free(*pcbopt);
-	*pcbopt = 0;
+	*pcbopt = NULL;
 	if (m == NULL || m->m_len == 0) {
 		/*
 		 * Only turning off any previous options.
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c
index afdf1a782782..3a8be2747303 100644
--- a/sys/netinet/ip_output.c
+++ b/sys/netinet/ip_output.c
@@ -1348,7 +1348,7 @@ ip_ctloutput(struct socket *so, struct sockopt *sopt)
 			caddr_t req = NULL;
 			size_t len = 0;
 
-			if (m != 0) {
+			if (m != NULL) {
 				req = mtod(m, caddr_t);
 				len = m->m_len;
 			}
diff --git a/sys/netinet/libalias/alias_db.c b/sys/netinet/libalias/alias_db.c
index cceccd56e6e5..4f8159ba753a 100644
--- a/sys/netinet/libalias/alias_db.c
+++ b/sys/netinet/libalias/alias_db.c
@@ -784,9 +784,9 @@ FindNewPortGroup(struct libalias *la,
 		struct alias_link *search_result;
 
 		for (j = 0; j < port_count; j++)
-			if (0 != (search_result = FindLinkIn(la, dst_addr, alias_addr,
-			    dst_port, htons(port_sys + j),
-			    link_type, 0)))
+			if ((search_result = FindLinkIn(la, dst_addr,
+			    alias_addr, dst_port, htons(port_sys + j),
+			    link_type, 0)) != NULL)
 				break;
 
 		/* Found a good range, return base */
diff --git a/sys/netinet/raw_ip.c b/sys/netinet/raw_ip.c
index 9f29444cb712..8de3108c8a98 100644
--- a/sys/netinet/raw_ip.c
+++ b/sys/netinet/raw_ip.c
@@ -1046,7 +1046,7 @@ rip_pcblist(SYSCTL_HANDLER_ARGS)
 		return (error);
 
 	inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK);
-	if (inp_list == 0)
+	if (inp_list == NULL)
 		return (ENOMEM);
 
 	INP_INFO_RLOCK(&V_ripcbinfo);
diff --git a/sys/netinet/sctp_syscalls.c b/sys/netinet/sctp_syscalls.c
index 71e2f722a72e..5c16e8d3555e 100644
--- a/sys/netinet/sctp_syscalls.c
+++ b/sys/netinet/sctp_syscalls.c
@@ -562,7 +562,7 @@ sys_sctp_generic_recvmsg(td, uap)
 
 	if (fromlen && uap->from) {
 		len = fromlen;
-		if (len <= 0 || fromsa == 0)
+		if (len <= 0 || fromsa == NULL)
 			len = 0;
 		else {
 			len = MIN(len, fromsa->sa_len);
diff --git a/sys/netinet/sctp_usrreq.c b/sys/netinet/sctp_usrreq.c
index 1b23abca7f10..81d2478294d4 100644
--- a/sys/netinet/sctp_usrreq.c
+++ b/sys/netinet/sctp_usrreq.c
@@ -469,7 +469,7 @@ sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUS
 	uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 
 	inp = (struct sctp_inpcb *)so->so_pcb;
-	if (inp != 0) {
+	if (inp != NULL) {
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 		return (EINVAL);
 	}
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
index 56aa56f5da0a..fdc2e76dbcfb 100644
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -308,7 +308,7 @@ udp_append(struct inpcb *inp, struct ip *ip, struct mbuf *n, int off,
 {
 	struct sockaddr *append_sa;
 	struct socket *so;
-	struct mbuf *opts = 0;
+	struct mbuf *opts = NULL;
 #ifdef INET6
 	struct sockaddr_in6 udp_in6;
 #endif
@@ -856,7 +856,7 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
 		return (error);
 
 	inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK);
-	if (inp_list == 0)
+	if (inp_list == NULL)
 		return (ENOMEM);
 
 	INP_INFO_RLOCK(&V_udbinfo);