fix more switch fall through

Coverity CID #199932, #199927, #164020, #164013, #150486, #58380,
    #58379, #58375, #58374, #40705, #40700, #40701

modules/compression/gz_helpers.c

@@ -167,6 +167,7 @@ int gzip_uncompress(unsigned char* in, unsigned long ilen, str* out, unsigned lo
 		switch (rc) {
 			case Z_NEED_DICT:
 				rc = Z_DATA_ERROR;
+				/* fall through */
 		case Z_DATA_ERROR:
 		case Z_MEM_ERROR:
 		case Z_BUF_ERROR:

modules/cpl_c/cpl_parser.c

@@ -217,6 +217,7 @@ static inline char *decode_mail_url(char *p, char *p_end, char *url,
 					case EMAIL_KNOWN_HDR_BODY:
 						if (((*len)&0x0001)==1) p++;
 						*len = htons(*len);
+						/* fall through */
 					case EMAIL_UNKNOWN_HDR_BODY:
 						hdr_len = 0;
 						status = EMAIL_HDR_NAME;
@@ -232,6 +233,7 @@ static inline char *decode_mail_url(char *p, char *p_end, char *url,
 								"address found in MAIL node!\n");
 							goto error;
 						}
+						/* fall through */
 					case EMAIL_KNOWN_HDR_BODY:
 						if (((*len)&0x0001)==1) p++;
 						*len = htons(*len);

modules/db_berkeley/bdb_lib.c

@@ -1325,6 +1325,7 @@ int bdblib_recover(table_p _tp, int _rc)
 	{
 		case DB_LOCK_DEADLOCK:
 		LM_ERR("DB_LOCK_DEADLOCK detected !!\n");
+		/* fall through */
 
 		case DB_RUNRECOVERY:
 		LM_ERR("DB_RUNRECOVERY detected !! \n");

modules/h350/h350_exp_fn.c

@@ -279,6 +279,7 @@ int h350_call_preferences(struct sip_msg* _msg, str* avp_name_prefix)
 				continue;
 			case REG_ESPACE:
 				LM_ERR("regexec returned REG_ESPACE - out of memory\n");
+				/* fall through */
 			default:
 				LM_ERR("regexec failed\n");
 				ldap_api.ldap_value_free_len(attr_vals);

modules/jabber/jabber.c

@@ -622,6 +622,7 @@ int xjab_manage_sipmsg(struct sip_msg *msg, int type)
 		case XJ_GO_OFFLINE:
 			dst.len = 0;
 			dst.s = 0;
+			/* fall through */
 		case XJ_JOIN_JCONF:
 		case XJ_EXIT_JCONF:
 			jsmsg->msg.len = 0;

modules/rabbitmq/rmq_servers.c

@@ -229,6 +229,7 @@ int rmq_reconnect(struct rmq_server *srv)
 		amqp_set_sockfd(srv->conn, socket);
 #endif
 		srv->state = RMQS_INIT;
+		/* fall through */
 	case RMQS_INIT:
 		if (rmq_error("Logging in", amqp_login(
 				srv->conn,
@@ -242,13 +243,15 @@ int rmq_reconnect(struct rmq_server *srv)
 			goto clean_rmq_server;
 		/* all good - return success */
 		srv->state = RMQS_CONN;
+		/* fall through */
 	case RMQS_CONN:
 		/* don't use more than 1 channel */
 		amqp_channel_open(srv->conn, 1);
 		if (rmq_error("Opening channel", amqp_get_rpc_reply(srv->conn)))
 			goto clean_rmq_server;
 		LM_DBG("[%.*s] successfully connected!\n", srv->cid.len, srv->cid.s);
 		srv->state = RMQS_ON;
+		/* fall through */
 	case RMQS_ON:
 		return 0;
 	default:

modules/rabbitmq_consumer/rmq_connection.c

@@ -356,6 +356,7 @@ static int rmq_connect(struct rmq_connection *conn)
 		}
 
 		conn->state = RMQ_CONN_SOCK;
+		/* fall through */
 	case RMQ_CONN_SOCK:
 		if (rmq_rpc_error(conn, "Logging in", amqp_login(
 			conn->amqp_conn,
@@ -369,6 +370,7 @@ static int rmq_connect(struct rmq_connection *conn)
 			goto err_close_rmq_conn;
 
 		conn->state = RMQ_CONN_LOGIN;
+		/* fall through */
 	case RMQ_CONN_LOGIN:
 		/* use only 1 channel */
 		amqp_channel_open(conn->amqp_conn, 1);
@@ -378,6 +380,7 @@ static int rmq_connect(struct rmq_connection *conn)
 
 		LM_DBG("successfully connected to: %s:%u\n", conn->uri.host, conn->uri.port);
 		conn->state = RMQ_CONN_CHAN;
+		/* fall through */
 	case RMQ_CONN_CHAN:
 		return 0;
 	default:

modules/tls_mgm/tls_conn_ops.h

@@ -90,6 +90,7 @@ static int tls_conn_shutdown(struct tcp_connection *c)
 
 			default:
 				LM_ERR("something wrong in SSL: %d, %d, %s\n",err,errno,strerror(errno));
+				/* fall through */
 
 			case SSL_ERROR_SYSCALL:
 				c->state = S_CONN_BAD;
@@ -240,6 +241,7 @@ static int _tls_read(struct tcp_connection *c, void *buf, size_t len)
 
 		case SSL_ERROR_SYSCALL:
 			LM_ERR("SYSCALL error -> (%d) <%s>\n",errno,strerror(errno));
+			/* fall through */
 		default:
 			LM_ERR("TLS connection to %s:%d read failed\n",
 				ip_addr2a(&c->rcv.src_ip), c->rcv.src_port);

modules/tls_mgm/tls_conn_server.h

@@ -472,6 +472,7 @@ static int tls_connect(struct tcp_connection *c, short *poll_events, trace_dest
 			case SSL_ERROR_SYSCALL:
 				LM_ERR("SSL_ERROR_SYSCALL err=%s(%d)\n",
 					strerror(errno), errno);
+				/* fall through */
 			default:
 				LM_ERR("New TLS connection to %s:%d failed\n",
 					ip_addr2a(&c->rcv.src_ip), c->rcv.src_port);