Merge pull request #2994 from opensourcerouting/sa-warnings

fix remaining SA warnings

bfdd/bfd_packet.c

@@ -248,6 +248,8 @@ ssize_t bfd_recv_ipv4(int sd, uint8_t *msgbuf, size_t msgbuflen, uint8_t *ttl,
 	struct iovec iov[1];
 	uint8_t cmsgbuf[255];
 
+	port[0] = '\0';
+
 	/* Prepare the recvmsg params. */
 	iov[0].iov_base = msgbuf;
 	iov[0].iov_len = msgbuflen;

ldpd/lde.c

@@ -1620,10 +1620,8 @@ lde_address_list_free(struct lde_nbr *ln)
 {
 	struct lde_addr		*lde_addr;
 
-	while ((lde_addr = TAILQ_FIRST(&ln->addr_list)) != NULL) {
-		TAILQ_REMOVE(&ln->addr_list, lde_addr, entry);
+	while ((lde_addr = TAILQ_POP_FIRST(&ln->addr_list, entry)) != NULL)
 		free(lde_addr);
-	}
 }
 
 static void zclient_sync_init(unsigned short instance)

lib/command.c

@@ -1198,6 +1198,7 @@ static int handle_pipe_action(struct vty *vty, const char *cmd_in,
 
 	/* retrieve action */
 	token = strsep(&working, " ");
+	assert(token);
 
 	/* match result to known actions */
 	if (strmatch(token, "include")) {

lib/csv.c

@@ -563,6 +563,8 @@ void csv_decode(csv_t *csv, char *inbuf)
 	csv_record_t *rec;
 
 	buf = (inbuf) ? inbuf : csv->buf;
+	assert(buf);
+
 	pos = strpbrk(buf, "\n");
 	while (pos != NULL) {
 		rec = calloc(1, sizeof(csv_record_t));

lib/imsg-buffer.c

@@ -21,9 +21,9 @@
 #include "queue.h"
 #include "imsg.h"
 
-int ibuf_realloc(struct ibuf *, size_t);
-void ibuf_enqueue(struct msgbuf *, struct ibuf *);
-void ibuf_dequeue(struct msgbuf *, struct ibuf *);
+static int ibuf_realloc(struct ibuf *, size_t);
+static void ibuf_enqueue(struct msgbuf *, struct ibuf *);
+static void ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
 struct ibuf *ibuf_open(size_t len)
 {
@@ -57,7 +57,7 @@ struct ibuf *ibuf_dynamic(size_t len, size_t max)
 	return (buf);
 }
 
-int ibuf_realloc(struct ibuf *buf, size_t len)
+static int ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	uint8_t *b;
 
@@ -183,6 +183,8 @@ void msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
+
+			TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
@@ -195,7 +197,7 @@ void msgbuf_clear(struct msgbuf *msgbuf)
 {
 	struct ibuf *buf;
 
-	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
+	while ((buf = TAILQ_POP_FIRST(&msgbuf->bufs, entry)) != NULL)
 		ibuf_dequeue(msgbuf, buf);
 }
 
@@ -266,16 +268,15 @@ again:
 	return (1);
 }
 
-void ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
+static void ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
-void ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
+static void ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
-
+	/* TAILQ_REMOVE done by caller */
 	if (buf->fd != -1)
 		close(buf->fd);
 

lib/imsg.c

@@ -299,11 +299,10 @@ int imsg_get_fd(struct imsgbuf *ibuf)
 	int fd;
 	struct imsg_fd *ifd;
 
-	if ((ifd = TAILQ_FIRST(&ibuf->fds)) == NULL)
+	if ((ifd = TAILQ_POP_FIRST(&ibuf->fds, entry)) == NULL)
 		return (-1);
 
 	fd = ifd->fd;
-	TAILQ_REMOVE(&ibuf->fds, ifd, entry);
 	free(ifd);
 
 	return (fd);

lib/queue.h

@@ -72,4 +72,17 @@
 #include "freebsd-queue.h"
 #endif /* defined(__OpenBSD__) && !defined(STAILQ_HEAD) */
 
+#ifndef TAILQ_POP_FIRST
+#define TAILQ_POP_FIRST(head, field)                                           \
+	({  typeof((head)->tqh_first) _elm = TAILQ_FIRST(head);                \
+	    if (_elm) {                                                        \
+		if ((TAILQ_NEXT((_elm), field)) != NULL)                       \
+			TAILQ_NEXT((_elm), field)->field.tqe_prev =            \
+				&TAILQ_FIRST(head);                            \
+		else                                                           \
+			(head)->tqh_last = &TAILQ_FIRST(head);                 \
+		TAILQ_FIRST(head) = TAILQ_NEXT((_elm), field);                 \
+	}; _elm; })
+#endif
+
 #endif /* _FRR_QUEUE_H */

lib/skiplist.c

@@ -202,6 +202,7 @@ int skiplist_insert(register struct skiplist *l, register void *key,
 	}
 
 	k = randomLevel();
+	assert(k >= 0);
 	if (k > l->level) {
 		k = ++l->level;
 		update[k] = l->header;

ospf6d/ospf6_asbr.c

@@ -732,7 +732,8 @@ void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa,
 							? 1
 							: 2,
 						buf, listcount(route->paths),
-						listcount(route->nh_list));
+						route->nh_list ?
+						listcount(route->nh_list) : 0);
 				}
 
 				if (listcount(route->paths)) {

ospf6d/ospf6_route.c

@@ -732,7 +732,7 @@ struct ospf6_route *ospf6_route_add(struct ospf6_route *route,
 		route->next = next;
 
 		if (node->info == next) {
-			assert(next->rnode == node);
+			assert(next && next->rnode == node);
 			node->info = route;
 			UNSET_FLAG(next->flag, OSPF6_ROUTE_BEST);
 			SET_FLAG(route->flag, OSPF6_ROUTE_BEST);

ospfd/ospf_snmp.c

@@ -995,7 +995,6 @@ static struct ospf_lsa *ospfLsdbLookup(struct variable *v, oid *name,
 			if (len <= 0)
 				type_next = 1;
 			else {
-				len = 1;
 				type_next = 0;
 				*type = *offset;
 			}

staticd/static_vty.c

@@ -88,8 +88,8 @@ static struct list *static_list;
 
 static int static_list_compare_helper(const char *s1, const char *s2)
 {
-	/* Are Both NULL */
-	if (s1 == s2)
+	/* extra (!s1 && !s2) to keep SA happy */
+	if (s1 == s2 || (!s1 && !s2))
 		return 0;
 
 	if (!s1 && s2)

zebra/zebra_fpm_protobuf.c

@@ -129,6 +129,7 @@ static inline int add_nexthop(qpb_allocator_t *allocator, Fpm__AddRoute *msg,
 	}
 
 	// TODO: Use src.
+	(void)src;
 
 	return 1;
 }