NETSTAT(1): Initialize global variables

Use BSD program lock.

freebsd/usr.bin/netstat/inet.c

@@ -306,7 +306,6 @@ void
 protopr(u_long off, const char *name, int af1, int proto)
 {
 	int istcp;
-	static int first = 1;
 	char *buf;
 	const char *vchar;
 	struct tcpcb *tp = NULL;
@@ -394,7 +393,7 @@ protopr(u_long off, const char *name, int af1, int proto)
 		     ))
 			continue;
 
-		if (first) {
+		if (!protopr_initialized) {
 			if (!Lflag) {
 				printf("Active Internet connections");
 				if (aflag)
@@ -424,7 +423,7 @@ protopr(u_long off, const char *name, int af1, int proto)
 				else
 					printf("(state)\n");
 			}
-			first = 0;
+			protopr_initialized = 1;
 		}
 		if (Lflag && so->so_qlimit == 0)
 			continue;
@@ -913,7 +912,7 @@ arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 
 
 
-static	const char *icmpnames[ICMP_MAXTYPE + 1] = {
+static	const char *const icmpnames[ICMP_MAXTYPE + 1] = {
 	"echo reply",			/* RFC 792 */
 	"#1",
 	"#2",

freebsd/usr.bin/netstat/main.c

@@ -364,13 +364,54 @@ int	af;		/* address family */
 int	live;		/* true if we are examining a live system */
 
 #ifdef __rtems__
+int	protopr_initialized;
+int	do_rtent;
+struct	radix_node_head **rt_tables;
+
 static int main(int argc, char *argv[]);
 
 int rtems_bsd_command_netstat(int argc, char *argv[])
 {
-  noutputs = 0;
+	int exit_code;
 
-  return rtems_bsd_program_call_main("netstat", main, argc, argv);
+	rtems_bsd_program_lock();
+
+	Aflag = 0;
+	aflag = 0;
+	bflag = 0;
+	dflag = 0;
+	gflag = 0;
+	hflag = 0;
+	iflag = 0;
+	Lflag = 0;
+	mflag = 0;
+	noutputs = 0;
+	numeric_addr = 0;
+	numeric_port = 0;
+	pflag = 0;
+	rflag = 0;
+	sflag = 0;
+	tflag = 0;
+	Wflag = 0;
+	xflag = 0;
+	zflag = 0;
+	interval = 0;
+	interface = 0;
+	unit = 0;
+	af = 0;
+	live = 0;
+
+	protopr_initialized = 0;
+	do_rtent = 0;
+
+	exit_code = rtems_bsd_program_call_main("netstat", main, argc, argv);
+
+	free(rt_tables);
+	rt_tables = NULL;
+
+	rtems_bsd_program_unlock();
+
+	return exit_code;
 }
 #endif /* __rtems__ */
 int

freebsd/usr.bin/netstat/netstat.h

@@ -36,6 +36,12 @@
 
 #include <sys/cdefs.h>
 
+#ifdef __rtems__
+#define rt_tables netstat_rt_tables
+#define routename rtems_shell_netstats_routername
+#define netname rtems_shell_netstats_netname
+#define sotoxsocket rtems_shell_netstats_sotoxsocket
+#endif /* __rtems__ */
 extern int	Aflag;	/* show addresses of protocol control block */
 extern int	aflag;	/* show all sockets (including servers) */
 extern int	bflag;	/* show i/f total bytes in/out */
@@ -62,6 +68,11 @@ extern int	unit;	/* unit number for above */
 
 extern int	af;	/* address family */
 extern int	live;	/* true if we are examining a live system */
+#ifdef __rtems__
+extern int	protopr_initialized;
+extern int	do_rtent;
+extern struct	radix_node_head **rt_tables;
+#endif /* __rtems__ */
 
 int	kread(u_long addr, void *buf, size_t size);
 const char *plural(uintmax_t);
@@ -126,13 +137,6 @@ char	*ipx_phost(struct sockaddr *);
 char	*ns_phost(struct sockaddr *);
 void	upHex(char *);
 
-#ifdef __rtems__
-#define rt_tables netstat_rt_tables
-#define routename rtems_shell_netstats_routername
-#define netname rtems_shell_netstats_netname
-#define sotoxsocket rtems_shell_netstats_sotoxsocket
-#endif
-
 char	*routename(in_addr_t);
 char	*netname(in_addr_t, u_long);
 char	*atalk_print(struct sockaddr *, int);

freebsd/usr.bin/netstat/route.c

@@ -126,16 +126,14 @@ typedef union {
 
 static sa_u pt_u;
 
-int	fibnum;
+static int	fibnum;
-int	do_rtent = 0;
+static struct	rtentry rtentry;
-struct	rtentry rtentry;
+static struct	radix_node rnode;
-struct	radix_node rnode;
+static struct	radix_mask rmask;
-struct	radix_mask rmask;
-struct	radix_node_head **rt_tables;
 
-int	NewTree = 0;
+static const int	NewTree = 0;
 
-struct	timespec uptime;
+static struct	timespec uptime;
 
 static struct sockaddr *kgetsa(struct sockaddr *);
 static void size_cols(int ef, struct radix_node *rn);
@@ -493,7 +491,7 @@ again:
 	}
 }
 
-char	nbuf[20];
+static char	nbuf[20];
 
 static void
 p_rtnode(void)