more cleanups (unused/uninitialized variables, forgotten free()s, etc.)

BasiliskII/src/Unix/clip_unix.cpp

@@ -650,14 +650,15 @@ static bool handle_selection(XSelectionRequestEvent *req, bool is_multiple)
 {
 	bool handled =false;
 
-	if (req->target == xa_timestamp)
+	if (req->target == xa_timestamp) {
 		handled = handle_selection_TIMESTAMP(req);
-	else if (req->target == xa_targets)
+	} else if (req->target == xa_targets) {
 		handled = handle_selection_TARGETS(req);
-	else if (req->target == XA_STRING)
+	} else if (req->target == XA_STRING) {
 		handled = handle_selection_STRING(req);
-	else if (req->target == xa_multiple)
+	} else if (req->target == xa_multiple) {
 		handled = handle_selection_MULTIPLE(req);
+	}
 
 	// Notify requestor only when we are done with his request
 	if (handled && !is_multiple) {
@@ -666,7 +667,7 @@ static bool handle_selection(XSelectionRequestEvent *req, bool is_multiple)
 		out_event.xselection.requestor = req->requestor;
 		out_event.xselection.selection = req->selection;
 		out_event.xselection.target    = req->target;
-		out_event.xselection.property  = handled ? req->property : None;
+		out_event.xselection.property  = req->property;
 		out_event.xselection.time      = req->time;
 		XSendEvent(x_display, req->requestor, False, 0, &out_event);
 	}

BasiliskII/src/Unix/ether_unix.cpp

@@ -96,7 +96,9 @@ enum {
 };
 
 // Constants
+#if ENABLE_TUNTAP
 static const char ETHERCONFIG_FILE_NAME[] = DATADIR "/tunconfig";
+#endif
 
 // Global variables
 static int fd = -1;							// fd of sheep_net device
@@ -650,11 +652,13 @@ static int16 ether_do_add_multicast(uint8 *addr)
 	case NET_IF_SHEEPNET:
 		if (ioctl(fd, SIOCADDMULTI, addr) < 0) {
 			D(bug("WARNING: Couldn't enable multicast address\n"));
-			if (net_if_type == NET_IF_ETHERTAP)
+			if (net_if_type == NET_IF_ETHERTAP) {
 				return noErr;
-			else
+			} else {
 				return eMultiErr;
+			}
 		}
+		return noErr;
 	default:
 		return noErr;
 	}
@@ -674,6 +678,7 @@ static int16 ether_do_del_multicast(uint8 *addr)
 			D(bug("WARNING: Couldn't disable multicast address\n"));
 			return eMultiErr;
 		}
+		return noErr;
 	default:
 		return noErr;
 	}

BasiliskII/src/Unix/extfs_unix.cpp

@@ -388,5 +388,3 @@ const char *macroman_to_host_encoding(const char *filename)
 {
 	return filename;
 }
-
-

BasiliskII/src/Unix/prefs_editor_gtk.cpp

@@ -200,7 +200,6 @@ static GtkWidget *table_make_option_menu(GtkWidget *table, int row, int label_id
 static GtkWidget *table_make_combobox(GtkWidget *table, int row, int label_id, const char *default_value, GList *glist)
 {
 	GtkWidget *label, *combo;
-	char str[32];
 
 	label = gtk_label_new(GetString(label_id));
 	gtk_widget_show(label);
@@ -654,7 +653,7 @@ static void read_volumes_settings(void)
 // Create "Volumes" pane
 static void create_volumes_pane(GtkWidget *top)
 {
-	GtkWidget *box, *scroll, *menu;
+	GtkWidget *box, *scroll;
 
 	box = make_pane(top, STR_VOLUMES_PANE_TITLE);
 
@@ -696,7 +695,7 @@ static void create_volumes_pane(GtkWidget *top)
 		case 0: active = 0; break;
 		case CDROMRefNum: active = 1; break;
 	}
-	menu = make_option_menu(box, STR_BOOTDRIVER_CTRL, options, active);
+	make_option_menu(box, STR_BOOTDRIVER_CTRL, options, active);
 
 	make_checkbox(box, STR_NOCDROM_CTRL, "nocdrom", GTK_SIGNAL_FUNC(tb_nocdrom));
 }
@@ -707,7 +706,6 @@ static void create_volumes_pane(GtkWidget *top)
  */
 
 static GtkWidget *w_jit_fpu;
-static GtkWidget *w_jit_atraps;
 static GtkWidget *w_jit_cache_size;
 static GtkWidget *w_jit_lazy_flush;
 static GtkWidget *w_jit_follow_const_jumps;
@@ -784,8 +782,7 @@ static void create_jit_pane(GtkWidget *top)
 	if (!is_jit_capable())
 		return;
 
-	GtkWidget *box, *table, *label, *menu;
-	char str[32];
+	GtkWidget *box;
 	
 	box = make_pane(top, STR_JIT_PANE_TITLE);
 	make_checkbox(box, STR_JIT_CTRL, "jit", GTK_SIGNAL_FUNC(tb_jit));
@@ -1163,7 +1160,7 @@ static void read_input_settings(void)
 // Create "Input" pane
 static void create_input_pane(GtkWidget *top)
 {
-	GtkWidget *box, *hbox, *menu, *label, *button;
+	GtkWidget *box, *hbox, *label, *button;
 	GtkObject *adj;
 
 	box = make_pane(top, STR_INPUT_PANE_TITLE);
@@ -1203,7 +1200,7 @@ static void create_input_pane(GtkWidget *top)
 		case 0: active = 0; break;
 		case 1: active = 1; break;
 	}
-	menu = make_option_menu(box, STR_MOUSEWHEELMODE_CTRL, options, active);
+	make_option_menu(box, STR_MOUSEWHEELMODE_CTRL, options, active);
 
 	hbox = gtk_hbox_new(FALSE, 4);
 	gtk_widget_show(hbox);
@@ -1475,7 +1472,7 @@ static void read_memory_settings(void)
 // Create "Memory/Misc" pane
 static void create_memory_pane(GtkWidget *top)
 {
-	GtkWidget *box, *hbox, *table, *label, *menu;
+	GtkWidget *box, *table;
 
 	box = make_pane(top, STR_MEMORY_MISC_PANE_TITLE);
 	table = make_table(box, 2, 5);

BasiliskII/src/Unix/rpc_unix.cpp

@@ -196,12 +196,14 @@ rpc_connection_t *rpc_init_server(const char *ident)
 
   if (bind(connection->server_socket, (struct sockaddr *)&addr, addr_len) < 0) {
 	perror("server bind");
+	close(connection->socket);
 	free(connection);
 	return NULL;
   }
 
   if (listen(connection->server_socket, 1) < 0) {
 	perror("server listen");
+	close(connection->socket);
 	free(connection);
 	return NULL;
   }
@@ -253,6 +255,7 @@ rpc_connection_t *rpc_init_client(const char *ident)
 	  break;
 	if (n_connect_attempts > 1 && errno != ECONNREFUSED && errno != ENOENT) {
 	  perror("client_connect");
+	  close(connection->socket);
 	  free(connection);
 	  return NULL;
 	}
@@ -260,6 +263,7 @@ rpc_connection_t *rpc_init_client(const char *ident)
 	usleep(N_CONNECT_WAIT_DELAY);
   }
   if (n_connect_attempts == 0) {
+	close(connection->socket);
 	free(connection);
 	return NULL;
   }
@@ -780,13 +784,15 @@ int rpc_message_recv_string(rpc_message_t *message, char **ret)
   if ((error = _rpc_message_recv_bytes(message, (unsigned char *)&r_value, sizeof(r_value))) < 0)
 	return error;
   length = ntohl(r_value);
-  if (length == 0)
+  if (length == 0) {
 	str = NULL;
-  else {
+  } else {
 	if ((str = (char *)malloc(length + 1)) == NULL)
 	  return RPC_ERROR_NO_MEMORY;
-	if ((error = _rpc_message_recv_bytes(message, (unsigned char *)str, length)) < 0)
+	if ((error = _rpc_message_recv_bytes(message, (unsigned char *)str, length)) < 0) {
+	  free(str);
 	  return error;
+	}
 	str[length] = '\0';
   }
   *ret = str;
@@ -838,8 +844,10 @@ static int rpc_message_recv_args(rpc_message_t *message, va_list args)
 		if ((array = (unsigned char *)malloc(array_size * sizeof(*array))) == NULL)
 		  return RPC_ERROR_NO_MEMORY;
 		error = _rpc_message_recv_bytes(message, array, array_size);
-		if (error != RPC_ERROR_NO_ERROR)
+		if (error != RPC_ERROR_NO_ERROR) {
+		  free(array);
 		  return error;
+		}
 		*((void **)p_value) = (void *)array;
 		break;
 	  }
@@ -850,8 +858,10 @@ static int rpc_message_recv_args(rpc_message_t *message, va_list args)
 		  return RPC_ERROR_NO_MEMORY;
 		for (i = 0; i < array_size; i++) {
 		  int32_t value;
-		  if ((error = rpc_message_recv_int32(message, &value)) < 0)
+		  if ((error = rpc_message_recv_int32(message, &value)) < 0) {
+		    free(array);
 			return error;
+		  }
 		  array[i] = value;
 		}
 		*((void **)p_value) = (void *)array;
@@ -863,8 +873,10 @@ static int rpc_message_recv_args(rpc_message_t *message, va_list args)
 		  return RPC_ERROR_NO_MEMORY;
 		for (i = 0; i < array_size; i++) {
 		  uint32_t value;
-		  if ((error = rpc_message_recv_uint32(message, &value)) < 0)
+		  if ((error = rpc_message_recv_uint32(message, &value)) < 0) {
+		    free(array);
 			return error;
+		  }
 		  array[i] = value;
 		}
 		*((void **)p_value) = (void *)array;
@@ -876,8 +888,10 @@ static int rpc_message_recv_args(rpc_message_t *message, va_list args)
 		  return RPC_ERROR_NO_MEMORY;
 		for (i = 0; i < array_size; i++) {
 		  char *str;
-		  if ((error = rpc_message_recv_string(message, &str)) < 0)
+		  if ((error = rpc_message_recv_string(message, &str)) < 0) {
+		    free(array);
 			return error;
+		  }
 		  array[i] = str;
 		}
 		*((void **)p_value) = (void *)array;
@@ -889,8 +903,10 @@ static int rpc_message_recv_args(rpc_message_t *message, va_list args)
 		  if ((array = (char *)malloc(array_size * desc->size)) == NULL)
 			return RPC_ERROR_NO_MEMORY;
 		  for (i = 0; i < array_size; i++) {
-			if ((error = desc->recv_callback(message, &array[i * desc->size])) < 0)
+			if ((error = desc->recv_callback(message, &array[i * desc->size])) < 0) {
+			  free(array);
 			  return error;
+			}
 		  }
 		  *((void **)p_value) = array;
 		}

BasiliskII/src/Unix/sigsegv.cpp

@@ -38,6 +38,7 @@
 #include <list>
 #include <stdio.h>
 #include <signal.h>
+#include <string.h>
 #include "sigsegv.h"
 
 #ifndef NO_STD_NAMESPACE
@@ -1060,11 +1061,13 @@ static bool ix86_skip_instruction(SIGSEGV_REGISTER_TYPE * regs)
 #endif
 	case 0x02: // ADD r8, r/m8
 		transfer_size = SIZE_BYTE;
+		// fall through
 	case 0x03: // ADD r32, r/m32
 		instruction_type = i_ADD;
 		goto do_transfer_load;
 	case 0x8a: // MOV r8, r/m8
 		transfer_size = SIZE_BYTE;
+		// fall through
 	case 0x8b: // MOV r32, r/m32 (or 16-bit operation)
 	  do_transfer_load:
 		switch (eip[op_len] & 0xc0) {
@@ -1085,11 +1088,13 @@ static bool ix86_skip_instruction(SIGSEGV_REGISTER_TYPE * regs)
 		break;
 	case 0x00: // ADD r/m8, r8
 		transfer_size = SIZE_BYTE;
+		// fall through
 	case 0x01: // ADD r/m32, r32
 		instruction_type = i_ADD;
 		goto do_transfer_store;
 	case 0x88: // MOV r/m8, r8
 		transfer_size = SIZE_BYTE;
+		// fall through
 	case 0x89: // MOV r/m32, r32 (or 16-bit operation)
 	  do_transfer_store:
 		switch (eip[op_len] & 0xc0) {
@@ -2857,6 +2862,7 @@ static bool sigsegv_do_install_handler(int sig)
 	// Setup SIGSEGV handler to process writes to frame buffer
 #ifdef HAVE_SIGACTION
 	struct sigaction sigsegv_sa;
+	memset(&sigsegv_sa, 0, sizeof(struct sigaction));
 	sigemptyset(&sigsegv_sa.sa_mask);
 	sigsegv_sa.sa_sigaction = sigsegv_handler;
 	sigsegv_sa.sa_flags = SA_SIGINFO;
@@ -2873,6 +2879,7 @@ static bool sigsegv_do_install_handler(int sig)
 	// Setup SIGSEGV handler to process writes to frame buffer
 #ifdef HAVE_SIGACTION
 	struct sigaction sigsegv_sa;
+	memset(&sigsegv_sa, 0, sizeof(struct sigaction));
 	sigemptyset(&sigsegv_sa.sa_mask);
 	sigsegv_sa.sa_handler = (signal_handler)sigsegv_handler;
 	sigsegv_sa.sa_flags = 0;

BasiliskII/src/Unix/video_x.cpp

@@ -386,6 +386,7 @@ static void add_mode(uint32 width, uint32 height, uint32 resolution_id, uint32 b
 	mode.resolution_id = resolution_id;
 	mode.bytes_per_row = bytes_per_row;
 	mode.depth = depth;
+	mode.user_data = 0;
 	VideoModes.push_back(mode);
 }
 
@@ -707,7 +708,8 @@ void driver_base::restore_mouse_accel(void)
 
 // Open display
 driver_window::driver_window(X11_monitor_desc &m)
- : driver_base(m), gc(0), img(NULL), have_shm(false), mac_cursor(0), mouse_grabbed(false)
+ : driver_base(m), gc(0), img(NULL), have_shm(false), mac_cursor(0),
+   mouse_grabbed(false), mouse_last_x(0), mouse_last_y(0)
 {
 	int width = mode.x, height = mode.y;
 	int aligned_width = (width + 15) & ~15;
@@ -2271,9 +2273,10 @@ static void update_display_dynamic(int ticker, driver_window *drv)
 
 	y2s = sm_uptd[ticker % 8];
 	y2a = 8;
-	for (i = 0; i < 6; i++)
+	for (i = 0; i < 6; i++) {
 		if (ticker % (2 << i))
 			break;
+	}
 	max_box = sm_no_boxes[i];
 
 	if (y2a) {

BasiliskII/src/cdrom.cpp

@@ -466,11 +466,13 @@ int16 CDROMPrime(uint32 pb, uint32 dce)
 				// Yes, fake (otherwise audio CDs won't get mounted)
 				memset(buffer, 0, 0x200);
 				actual = 0x200;
-			} else
+			} else {
 				return readErr;
+			}
 		}
-	} else
+	} else {
 		return wPrErr;
+	}
 
 	// Update ParamBlock and DCE
 	WriteMacInt32(pb + ioActCount, actual);
@@ -500,7 +502,7 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 			return noErr;
 		}
 
-		case 81:		// Set poll freq
+		case 81:	// Set poll freq
 			WriteMacInt16(dce + dCtlDelay, ReadMacInt16(pb + csParam));
 			return noErr;
 	}
@@ -508,10 +510,11 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 	// Drive valid?
 	drive_vec::iterator info = get_drive_info(ReadMacInt16(pb + ioVRefNum));
 	if (info == drives.end()) {
-		if (drives.empty())
+		if (drives.empty()) {
 			return nsDrvErr;
-		else
+		} else {
 			info = drives.begin();	// This is needed for Apple's Audio CD program
+		}
 	}
 
 	// Drive-specific codes
@@ -539,15 +542,15 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 			WriteMacInt32(pb + csParam, CDROMIconAddr);
 			return noErr;
 
-		case 23:		// drive_info
+		case 23:		// GetDriveInfo
 			WriteMacInt32(pb + csParam, 0x00000b01);	// Unspecified external removable SCSI disk
 			return noErr;
 
 		case 70: {		// SetPowerMode
 			uint8 mode = ReadMacInt8(pb + csParam);
-			if (mode > 3)
+			if (mode > 3) {
 				return paramErr;
-			else {
+			} else {
 				info->power_mode = mode;
 				return noErr;
 			}
@@ -560,9 +563,9 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 		case 79: {		// Change block size
 			uint16 size = ReadMacInt16(pb + csParam);
 			D(bug(" change block size to %d bytes\n", size));
-			if (size != 512 && size != 2048)
+			if (size != 512 && size != 2048) {
 				return paramErr;
-			else {
+			} else {
 				info->block_size = size;
 				return noErr;
 			}
@@ -575,8 +578,9 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 				else
 					SysPreventRemoval(info->fh);
 				return noErr;
-			} else
+			} else {
 				return offLinErr;
+			}
 
 		case 100: {		// ReadTOC
 			if (ReadMacInt8(info->status + dsDiskInPlace) == 0)
@@ -611,7 +615,7 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 					}
 
 					// Fill buffer
-					if (i != 804)
+					if (i != 804) {
 						while (buf_size > 0) {
 							WriteMacInt8(buf, info->toc[i+1] & 0x0f); buf++;	// Control
 							WriteMacInt8(buf, bin2bcd[info->toc[i+5]]); buf++;	// M
@@ -625,6 +629,7 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 							buf_size -= 4;
 							i += 8;
 						}
+					}
 					break;
 				}
 
@@ -665,8 +670,9 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 				WriteMacInt8(p, bin2bcd[pos[11]]); p++;	// F (abs)
 				WriteMacInt8(p, 0);
 				return noErr;
-			} else
+			} else {
 				return ioErr;
+			}
 		}
 
 		case 102:		// ReadHeader
@@ -786,10 +792,11 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 			if (!position2msf(*info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), false, start_m, start_s, start_f))
 				return paramErr;
 
-			if (!SysCDScan(info->fh, start_m, start_s, start_f, ReadMacInt16(pb + csParam + 6)))
+			if (!SysCDScan(info->fh, start_m, start_s, start_f, ReadMacInt16(pb + csParam + 6))) {
 				return paramErr;
-			else
+			} else {
 				return noErr;
+			}
 		}
 
 		case 109:		// AudioControl
@@ -805,7 +812,7 @@ int16 CDROMControl(uint32 pb, uint32 dce)
 			return controlErr;
 
 		case 112: {		// ReadAudioVolume
-			uint8 left, right;
+			uint8 left = 0, right = 0;
 			SysCDGetVolume(info->fh, left, right);
 			WriteMacInt8(pb + csParam, left);
 			WriteMacInt8(pb + csParam + 1, right);
@@ -940,8 +947,9 @@ int16 CDROMStatus(uint32 pb, uint32 dce)
 				WriteMacInt32(adr, SysGetFileSize(info->fh) / 512);	// Number of blocks
 				WriteMacInt32(adr + 4, 0);							// heads/track/sectors
 				return noErr;
-			} else
+			} else {
 				return paramErr;
+			}
 
 		case 8:			// DriveStatus
 			Mac2Mac_memcpy(pb + csParam, info->status, 22);
@@ -955,8 +963,9 @@ int16 CDROMStatus(uint32 pb, uint32 dce)
 			if (info->twok_offset > 0) {
 				WriteMacInt16(pb + csParam, info->twok_offset);
 				return noErr;
-			} else
+			} else {
 				return statusErr;
+			}
 
 		case 96:		// Get drive type
 			WriteMacInt16(pb + csParam, 3);			// Apple CD 300 or newer

BasiliskII/src/ether.cpp

@@ -327,7 +327,7 @@ int16 EtherControl(uint32 pb, uint32 dce)
 
 					// Extract destination address
 					uint32 dest_ip;
-					if (packet[0] == 'B' && packet[1] == '2')
+					if (len >= 6 && packet[0] == 'B' && packet[1] == '2')
 						dest_ip = (packet[2] << 24) | (packet[3] << 16) | (packet[4] << 8) | packet[5];
 					else if (is_apple_talk_broadcast(packet) || is_ethernet_broadcast(packet))
 						dest_ip = INADDR_BROADCAST;

BasiliskII/src/extfs.cpp

@@ -820,9 +820,9 @@ static int16 get_current_dir(uint32 pb, uint32 dirID, uint32 &current_dir, bool
 				break;
 
 			case dtmvWDRefNum:		// Determined by working directory refNum
-				if (dirID)
+				if (dirID) {
 					current_dir = dirID;
-				else {
+				} else {
 					D(bug("  resolving WDCB\n"));
 					r.d[0] = 0;
 					r.d[1] = 0;
@@ -838,9 +838,9 @@ static int16 get_current_dir(uint32 pb, uint32 dirID, uint32 &current_dir, bool
 				break;
 
 			case dtmvDefault:		// Determined by default volume
-				if (dirID)
+				if (dirID) {
 					current_dir = dirID;
-				else {
+				} else {
 					uint32 wdpb = fs_data + fsReturn;
 					WriteMacInt32(wdpb + ioNamePtr, 0);
 					D(bug("  getting default volume\n"));

BasiliskII/src/rom_patches.cpp

@@ -1011,7 +1011,6 @@ static bool patch_rom_classic(void)
 // ROM patches for 32-bit clean Mac-II ROMs (version $067c)
 static bool patch_rom_32(void)
 {
-	uint32 *lp;
 	uint16 *wp;
 	uint8 *bp;
 	uint32 base;

BasiliskII/src/scsi.cpp

@@ -115,10 +115,11 @@ static int16 exec_tib(uint32 tib)
 		switch (cmd) {
 			case scInc:
 				WriteMacInt32(tib - 8, ptr + len);
+				// fall through to scNoInc
 			case scNoInc:
-				if ((sg_index > 0) && (Mac2HostAddr(ptr) == sg_ptr[sg_index-1] + sg_len[sg_index-1]))
+				if ((sg_index > 0) && (Mac2HostAddr(ptr) == sg_ptr[sg_index-1] + sg_len[sg_index-1])) {
 					sg_len[sg_index-1] += len;				// Merge to previous entry
-				else {
+				} else {
 					if (sg_index == SG_TABLE_SIZE) {
 						ErrorAlert(GetString(STR_SCSI_SG_FULL_ERR));
 						return -108;
@@ -208,21 +209,20 @@ int16 SCSISelect(int id)
 		return scSequenceErr;
 
 	// ID valid?
-	if (id >= 0 && id <= 7) {
-		target_id = id;
+	if (id < 0 || id > 7)
+		return scBadParmsErr;
 
-		// Target present?
-		if (scsi_is_target_present(target_id)) {
-			phase = PH_SELECTED;
-			fake_status = 0x006a;			// Target selected, command phase
-			return 0;
-		}
+	// Target present?
+	target_id = id;
+	if (!scsi_is_target_present(target_id)) {
+		phase = PH_FREE;
+		fake_status = 0x0000;	// Bus free
+		return scCommErr;
 	}
 
-	// Error
-	phase = PH_FREE;
-	fake_status = 0x0000;		// Bus free
-	return scCommErr;
+	phase = PH_SELECTED;
+	fake_status = 0x006a;		// Target selected, command phase
+	return 0;
 }
 
 

BasiliskII/src/slirp/misc.c

@@ -333,6 +333,7 @@ fork_exec(so, ex, do_pty)
 			return 0;
 		}
 	} else {
+		memset(&addr, 0, sizeof(struct sockaddr_in));
 		addr.sin_family = AF_INET;
 		addr.sin_port = 0;
 		addr.sin_addr.s_addr = INADDR_ANY;

BasiliskII/src/slirp/socket.c

@@ -575,6 +575,7 @@ solisten(port, laddr, lport, flags)
 	so->so_lport = lport; /* Kept in network format */
 	so->so_laddr.s_addr = laddr; /* Ditto */
 	
+	memset(&addr, 0, sizeof(struct sockaddr_in));
 	addr.sin_family = AF_INET;
 	addr.sin_addr.s_addr = INADDR_ANY;
 	addr.sin_port = port;

BasiliskII/src/slirp/tcp_subr.c

@@ -400,6 +400,7 @@ int tcp_fconnect(so)
   if( (ret=so->s=socket(AF_INET,SOCK_STREAM,0)) >= 0) {
     int opt, s=so->s;
     struct sockaddr_in addr;
+    memset(&addr, 0, sizeof(struct sockaddr_in));
 
     fd_nonblock(s);
     opt = 1;

BasiliskII/src/slirp/udp.c

@@ -333,6 +333,7 @@ udp_attach(so)
      * (sendto() on an unbound socket will bind it), it's done
      * here so that emulation of ytalk etc. don't have to do it
      */
+	memset(&addr, 0, sizeof(struct sockaddr_in));
     addr.sin_family = AF_INET;
     addr.sin_port = 0;
     addr.sin_addr.s_addr = INADDR_ANY;
@@ -645,6 +646,7 @@ udp_listen(port, laddr, lport, flags)
 	so->so_expire = curtime + SO_EXPIRE;
 	insque(so,&udb);
 
+	memset(&addr, 0, sizeof(struct sockaddr_in));
 	addr.sin_family = AF_INET;
 	addr.sin_addr.s_addr = INADDR_ANY;
 	addr.sin_port = port;