comment fall through switches

Fixes Coverity #40710, #211397, #40716, #40726, #40727, #40728, #40730,
    #40732, #58373, #58381, #199975, #200059, #200094, #211380, #211372,
    #211359

modules/b2b_sca/sca_db_handler.c

@@ -213,6 +213,7 @@ int update_sca_info_to_db(b2b_sca_record_t *record, unsigned int appearance_inde
 				call->call_info_apperance_uri.len, call->call_info_apperance_uri.s,
 				call->b2bl_key.len, call->b2bl_key.s);
 			n_q_vals += 3;
+			/* fall through */
 		default:
 			q_vals[app_shared_entity_col[i]].val.int_val = call->shared_entity;
 			q_vals[app_call_state_col[i]].val.int_val = call->call_state;

modules/proto_ws/proto_ws.c

@@ -272,6 +272,7 @@ static void ws_conn_clean(struct tcp_connection* c)
 			break;
 		case WS_ERR_NONE:
 			WS_CODE(c) = WS_ERR_NORMAL;
+			/* fall through */
 		default:
 			ws_close(c);
 			break;

modules/speeddial/sdlookup.c

@@ -174,6 +174,7 @@ int sd_lookup(struct sip_msg* _msg, str* table_s, str* uri_s)
 				RES_ROWS(db_res)[0].values[0].val.blob_val.len);
 			user_s.len = RES_ROWS(db_res)[0].values[0].val.blob_val.len;
 			user_s.s[user_s.len] = '\0';
+		break;
 		default:
 			LM_ERR("unknown type of DB new_uri column\n");
 			if (db_res != NULL && db_funcs.free_result(db_handle, db_res) < 0)

modules/tm/sip_msg.c

@@ -1000,6 +1000,8 @@ struct sip_msg*  sip_msg_cloner( struct sip_msg *org_msg, int *sip_msg_len,
 		new_msg->reply_lump = 0;
 		CLONE_RPL_LUMP_LIST( p, &(new_msg->reply_lump), org_msg->reply_lump);
 
+		/* fall through */
+
 	case 1: /* updatable and cloning now */
 		new_msg->msg_flags |= FL_SHM_UPDATABLE|FL_SHM_UPDATED;
 		/* msg is updatable -> the fields that can be updated are allocated in 

modules/tm/t_fifo.c

@@ -392,6 +392,7 @@ static inline int write_to_fifo(char *fifo, int cnt )
 		switch(errno){
 			case ENXIO:
 				LM_ERR("nobody listening on [%s] fifo for reading!\n",fifo);
+				break;
 			default:
 				LM_ERR("failed to open [%s] fifo : %s\n", fifo,
 						strerror(errno));

parser/parse_disposition.c

@@ -170,6 +170,7 @@ int parse_disposition( str *s, struct disposition *disp)
 						break;
 					case TYPE:
 						disp->type.len = tmp - disp->type.s;
+						/* fall through */
 					case END_TYPE:
 					case END_VAL:
 						state = FIND_PARAM;
@@ -192,6 +193,7 @@ int parse_disposition( str *s, struct disposition *disp)
 						break;
 					case PARAM:
 						disp_p->name.len = tmp - disp_p->name.s;
+						/* fall through */
 					case END_PARAM:
 						state = FIND_VAL;
 						break;
@@ -390,6 +392,7 @@ int parse_content_disposition( struct sip_msg *msg )
 			set_err_info(OSER_EC_PARSER, OSER_EL_MEDIUM,
 				"error parsing DISPOSITION header");
 			set_err_reply(400, "bad headers");
+			/* fall through */
 		case -1:
 			/* error when parsing the body */
 			free_disposition( &disp );

parser/parse_hname2.c

@@ -163,6 +163,7 @@ char* parse_hname2(char* begin, char* end, struct hdr_field* hdr)
 	switch(val) {
 
 		FIRST_QUATERNIONS;
+		/* fall through */
 
 		default:
 			switch(LOWER_BYTE(*p)) {

parser/parse_to.c

@@ -558,6 +558,7 @@ static inline char* _parse_to(char* buffer, char *end, struct to_body *to_b,
 					case URI_OR_TOKEN:
 						end_mark = tmp;
 						status = MAYBE_URI_END;
+						/* fall through */
 					case MAYBE_URI_END:
 					case DISPLAY_TOKEN:
 					case DISPLAY_TOKEN2:
@@ -651,6 +652,7 @@ static inline char* _parse_to(char* buffer, char *end, struct to_body *to_b,
 					case URI_OR_TOKEN:
 					case DISPLAY_TOKEN:
 						end_mark = tmp;
+						/* fall through */
 					case DISPLAY_TOKEN2:
 					case MAYBE_URI_END:
 						to_b->display.len=end_mark-to_b->display.s;
@@ -672,6 +674,7 @@ static inline char* _parse_to(char* buffer, char *end, struct to_body *to_b,
 						break;
 					case URI_ENCLOSED:
 						to_b->uri.len = tmp - to_b->uri.s;
+						/* fall through */
 					case E_URI_ENCLOSED:
 						status = END;
 						break;

parser/parse_via.c

@@ -1864,6 +1864,7 @@ char* parse_via(char* buffer, char* end, struct via_body *vbody)
 					case P_PORT:
 						/*mark the end*/
 						vb->port_str.len=tmp-vb->port_str.s;
+						/* fall through */
 					case L_PORT:
 					case L_PARAM:
 						state=F_PARAM;

ut.c

@@ -438,11 +438,14 @@ void _base32encode(unsigned char *out, unsigned char *in, int inlen,
 		case 1:
 			*out++ = pad_char;
 			*out++ = pad_char;
+			/* fall through */
 		case 2:
 			*out++ = pad_char;
+			/* fall through */
 		case 3:
 			*out++ = pad_char;
 			*out++ = pad_char;
+			/* fall through */
 		case 4:
 			*out++ = pad_char;
 		}