diff -up net-tools-2.0/lib/interface.c.cycle net-tools-2.0/lib/interface.c

--- net-tools-2.0/lib/interface.c.cycle	2015-08-29 08:59:31.000000000 +0200

+++ net-tools-2.0/lib/interface.c	2015-09-15 18:09:54.089697132 +0200

@@ -93,6 +93,7 @@ int if_list_all = 0;	/* do we have reque

 static struct interface *int_list, *int_last;

 static int if_readlist_proc(const char *);

+static int if_readlist_rep(const char *, struct interface *);

 static struct interface *if_cache_add(const char *name)

 {

@@ -138,11 +139,14 @@ struct interface *lookup_interface(const

 int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie)

 {

     struct interface *ife;

+    int err;

     if (!if_list_all && (if_readlist() < 0))

 	return -1;

     for (ife = int_list; ife; ife = ife->next) {

-	int err = doit(ife, cookie);

+	if_readlist_rep(ife->name, ife);

+	err = doit(ife, cookie);

+

 	if (err)

 	    return err;

     }

@@ -379,6 +383,41 @@ static int if_readlist_proc(const char *

     fclose(fh);

     return err;

 }

+

+static int if_readlist_rep(const char *target, struct interface *ife)

+{

+    FILE *fh;

+    char buf[512];

+    int err;

+

+    fh = fopen(_PATH_PROCNET_DEV, "r");

+    if (!fh) {

+		fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"),

+			_PATH_PROCNET_DEV, strerror(errno)); 

+		return if_readconf();

+	}	

+    fgets(buf, sizeof buf, fh);	/* eat line */

+    fgets(buf, sizeof buf, fh);

+

+    procnetdev_vsn = procnetdev_version(buf);

+

+    err = 0;

+    while (fgets(buf, sizeof buf, fh)) {

+	char *s, name[IFNAMSIZ];

+	s = get_name(name, buf);    

+	get_dev_fields(s, ife);

+	ife->statistics_valid = 1;

+	if (target && !strcmp(target,name))

+		break;

+    }

+    if (ferror(fh)) {

+	perror(_PATH_PROCNET_DEV);

+	err = -1;

+    }

+

+    fclose(fh);

+    return err;

+}

 int if_readlist(void)

 {

diff -up net-tools-2.0/man/en_US/netstat.8.cycle net-tools-2.0/man/en_US/netstat.8

--- net-tools-2.0/man/en_US/netstat.8.cycle	2015-08-29 08:59:31.000000000 +0200

+++ net-tools-2.0/man/en_US/netstat.8	2015-09-15 18:09:54.090697129 +0200

@@ -36,6 +36,7 @@ netstat \- Print network connections, ro

 .RB [ \-\-verbose | \-v ]

 .RB [ \-\-continuous | \-c]

 .RB [ \-\-wide | \-W ]

+.RB [delay]

 .P

 .B netstat 

 .RB { \-\-route | \-r }

@@ -45,6 +46,7 @@ netstat \- Print network connections, ro

 .RB [ \-\-numeric | \-n ]

 .RB [ \-\-numeric\-hosts "] [" \-\-numeric\-ports "] [" \-\-numeric\-users ]

 .RB [ \-\-continuous | \-c ]

+.RB [delay]

 .P

 .B netstat

 .RB { \-\-interfaces | \-i }

@@ -55,12 +57,14 @@ netstat \- Print network connections, ro

 .RB [ \-\-numeric | \-n ]

 .RB [ \-\-numeric-hosts "] [" \-\-numeric-ports "] [" \-\-numeric-users ]

 .RB [ \-\-continuous | \-c ]

+.RB [delay]

 .P

 .B netstat

 .RB { \-\-groups | \-g }

 .RB [ \-\-numeric | \-n ]

 .RB [ \-\-numeric\-hosts "] [" \-\-numeric\-ports "] [" \-\-numeric\-users ]

 .RB [ \-\-continuous | \-c ]

+.RB [delay]

 .P

 .B netstat

 .RB { \-\-masquerade | \-M }

@@ -68,6 +72,7 @@ netstat \- Print network connections, ro

 .RB [ \-\-numeric | \-n ]

 .RB [ \-\-numeric\-hosts "] [" \-\-numeric\-ports "] [" \-\-numeric\-users ]

 .RB [ \-\-continuous | \-c ]

+.RB [delay]

 .P

 .B netstat

 .RB { \-\-statistics | -s }

@@ -76,6 +81,7 @@ netstat \- Print network connections, ro

 .RB [ \-\-udplite | \-U ]

 .RB [ \-\-sctp | \-S ]

 .RB [ \-\-raw | \-w ]

+.RB [delay]

 .P

 .B netstat 

 .RB { \-\-version | \-V }

@@ -208,6 +214,10 @@ option, show interfaces that are not up

 Print routing information from the FIB.  (This is the default.)

 .SS "\-C"

 Print routing information from the route cache.

+.SS delay

+Netstat will cycle printing through statistics every 

+.B delay 

+seconds.

 .P

 .SH OUTPUT

 .P

diff -up net-tools-2.0/netstat.c.cycle net-tools-2.0/netstat.c

--- net-tools-2.0/netstat.c.cycle	2015-08-29 08:59:31.000000000 +0200

+++ net-tools-2.0/netstat.c	2015-09-15 18:09:54.090697129 +0200

@@ -115,8 +115,8 @@

 #endif

 /* prototypes for statistics.c */

-void parsesnmp(int, int, int, int);

-void parsesnmp6(int, int, int);

+int parsesnmp(int, int, int, int);

+int parsesnmp6(int, int, int);

 typedef enum {

     SS_FREE = 0,		/* not allocated                */

@@ -340,10 +340,10 @@ static void prg_cache_clear(void)

     prg_cache_loaded = 0;

 }

-static void wait_continous(void)

+static void wait_continous(int reptimer)

 {

     fflush(stdout);

-    sleep(1);

+    sleep(reptimer);

 }

 static int extract_type_1_socket_inode(const char lname[], unsigned long * inode_p) {

@@ -1892,6 +1892,8 @@ static int rfcomm_info(void)

 static int iface_info(void)

 {

+    static int count=0;

+

     if (skfd < 0) {

 	if ((skfd = sockets_open(0)) < 0) {

 	    perror("socket");

@@ -1901,20 +1903,21 @@ static int iface_info(void)

     }

     if (flag_exp < 2) {

 	ife_short = 1;

-	printf(_("Iface      MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg\n"));

+	if(!(count % 8))

+	    printf(_("Iface      MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg\n"));

     }

     if (for_all_interfaces(do_if_print, &flag_all) < 0) {

 	perror(_("missing interface information"));

 	exit(1);

     }

-    if (flag_cnt)

+    if (!flag_cnt) {

 	if_cache_free();

-    else {

 	close(skfd);

 	skfd = -1;

     }

+    count++;

     return 0;

 }

@@ -1930,7 +1933,7 @@ static void usage(void)

 {

     fprintf(stderr, _("usage: netstat [-vWeenNcCF] [<Af>] -r         netstat {-V|--version|-h|--help}\n"));

     fprintf(stderr, _("       netstat [-vWnNcaeol] [<Socket> ...]\n"));

-    fprintf(stderr, _("       netstat { [-vWeenNac] -i | [-cnNe] -M | -s [-6tuw] }\n\n"));

+    fprintf(stderr, _("       netstat { [-vWeenNac] -i | [-cnNe] -M | -s [-6tuw] } [delay]\n\n"));

     fprintf(stderr, _("        -r, --route              display routing table\n"));

     fprintf(stderr, _("        -i, --interfaces         display interface table\n"));

@@ -1972,6 +1975,7 @@ int main

  (int argc, char *argv[]) {

     int i;

     int lop;

+    int reptimer = 1;

     static struct option longopts[] =

     {

 	AFTRANS_OPTS,

@@ -2154,6 +2158,12 @@ int main

 	    flag_sta++;

 	}

+    if(argc == optind + 1) {

+      if((reptimer = atoi(argv[optind])) <= 0)

+	usage();

+      flag_cnt++;

+    }

+    

     if (flag_int + flag_rou + flag_mas + flag_sta > 1)

 	usage();

@@ -2183,7 +2193,7 @@ int main

 			     flag_not & FLAG_NUM_PORT, flag_exp);

 	    if (i || !flag_cnt)

 		break;

-	    wait_continous();

+	    wait_continous(reptimer);

 	}

 #else

 	ENOSUPP("netstat", "FW_MASQUERADE");

@@ -2196,15 +2206,16 @@ int main

         if (!afname[0])

             safe_strncpy(afname, DFLT_AF, sizeof(afname));

+        for (;;) {

         if (!strcmp(afname, "inet")) {

 #if HAVE_AFINET

-            parsesnmp(flag_raw, flag_tcp, flag_udp, flag_sctp);

+            i = parsesnmp(flag_raw, flag_tcp, flag_udp, flag_sctp);

 #else

             ENOSUPP("netstat", "AF INET");

 #endif

         } else if(!strcmp(afname, "inet6")) {

 #if HAVE_AFINET6

-            parsesnmp6(flag_raw, flag_tcp, flag_udp);

+            i = parsesnmp6(flag_raw, flag_tcp, flag_udp);

 #else

             ENOSUPP("netstat", "AF INET6");

 #endif

@@ -2212,7 +2223,11 @@ int main

           printf(_("netstat: No statistics support for specified address family: %s\n"), afname);

           exit(1);

         }

-        exit(0);

+	if(i || !flag_cnt)

+	  break;

+	sleep(reptimer);

+        }

+        return (i);

     }

     if (flag_rou) {

@@ -2234,7 +2249,7 @@ int main

 	    i = route_info(afname, options);

 	    if (i || !flag_cnt)

 		break;

-            wait_continous();

+            wait_continous(reptimer);

 	}

 	return (i);

     }

@@ -2243,7 +2258,7 @@ int main

 	    i = iface_info();

 	    if (!flag_cnt || i)

 		break;

-            wait_continous();

+            wait_continous(reptimer);

 	}

 	return (i);

     }

@@ -2430,7 +2445,7 @@ int main

 	if (!flag_cnt || i)

 	    break;

-        wait_continous();

+        wait_continous(reptimer);

 	prg_cache_clear();

     }

     return (i);

diff -up net-tools-2.0/statistics.c.cycle net-tools-2.0/statistics.c

--- net-tools-2.0/statistics.c.cycle	2015-08-29 08:59:31.000000000 +0200

+++ net-tools-2.0/statistics.c	2015-09-15 18:10:34.608582779 +0200

@@ -527,7 +527,7 @@ static void process_fd2(FILE *f, const c

     }

 }

-void parsesnmp(int flag_raw, int flag_tcp, int flag_udp, int flag_sctp)

+int parsesnmp(int flag_raw, int flag_tcp, int flag_udp, int flag_sctp)

 {

     FILE *f;

@@ -536,14 +536,17 @@ void parsesnmp(int flag_raw, int flag_tc

     f = proc_fopen("/proc/net/snmp");

     if (!f) {

 	perror(_("cannot open /proc/net/snmp"));

-	return;

+	return(1);

     }

     if (process_fd(f, 1, NULL) < 0)

       fprintf(stderr, _("Problem while parsing /proc/net/snmp\n"));

-    if (ferror(f))

+    if (ferror(f)) {

 	perror("/proc/net/snmp");

+	fclose(f);

+	return(1);

+    }

     fclose(f);

@@ -553,8 +556,11 @@ void parsesnmp(int flag_raw, int flag_tc

     	if (process_fd(f, 1, NULL) <0)

           fprintf(stderr, _("Problem while parsing /proc/net/netstat\n"));

-        if (ferror(f))

-	    perror("/proc/net/netstat");

+        if (ferror(f)) {

+	  perror("/proc/net/netstat");

+	  fclose(f);

+	  return(1);

+        }

         fclose(f);

     }

@@ -567,9 +573,10 @@ void parsesnmp(int flag_raw, int flag_tc

 	    fclose(f);

 	}

     }

+    return(0);

 }

-void parsesnmp6(int flag_raw, int flag_tcp, int flag_udp)

+int parsesnmp6(int flag_raw, int flag_tcp, int flag_udp)

 {

     FILE *f;

@@ -578,7 +585,7 @@ void parsesnmp6(int flag_raw, int flag_t

     f = fopen("/proc/net/snmp6", "r");

     if (!f) {

         perror(_("cannot open /proc/net/snmp6"));

-        return;

+        return(1);

     }

     process6_fd(f);

     if (ferror(f))

@@ -588,11 +595,14 @@ void parsesnmp6(int flag_raw, int flag_t

     f = fopen("/proc/net/snmp", "r");

     if (!f) {

         perror(_("cannot open /proc/net/snmp"));

-        return;

+        return(1);

     }

     process_fd(f, 0, "Tcp");

-    if (ferror(f))

+    if (ferror(f)) {

         perror("/proc/net/snmp");

+        return(1);

+    }

     fclose(f);

+    return(0);

 }