>Number: 145934
>Category: bin
>Synopsis: [patch] add count option to netstat
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu Apr 22 07:00:12 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Dmitry Banshchikov
>Release: FreeBSD 8.0-RELEASE
>Organization:
>Environment:
>Description:
Allows user to specify -c for netstat, to repeat display output in case of -w
option(Similar to -c option of iostat utility)
Example usage:
#./netstat -w2 -c3
input (Total) output
packets errs bytes packets errs bytes colls
20 0 1830 5 0 334 0
9 0 3037 9 0 1246 0
14 0 1268 7 0 658 0
#
>How-To-Repeat:
>Fix:
Patch attached with submission follows:
--- if.c 2009-10-25 04:10:29.000000000 +0300
+++ if.c 2010-04-21 11:32:15.000000000 +0400
@@ -676,6 +676,10 @@
if (!first)
putchar('\n');
fflush(stdout);
+ if (cflag)
+ count--;
+ if (count < 0 && cflag)
+ exit(0);
oldmask = sigblock(sigmask(SIGALRM));
while (!signalled)
sigpause(0);
--- main.c 2009-10-25 04:10:29.000000000 +0300
+++ main.c 2010-04-22 10:30:57.000000000 +0400
@@ -322,6 +322,7 @@
int aflag; /* show all sockets (including servers) */
int Bflag; /* show information about bpf consumers */
int bflag; /* show i/f total bytes in/out */
+int cflag; /* repeat display */
int dflag; /* show i/f dropped packets */
int gflag; /* show group (multicast) routing or stats */
int hflag; /* show counters in human readable format */
@@ -339,6 +340,7 @@
int zflag; /* zero stats */
int interval; /* repeat interval for i/f stats */
+int count; /* repeat display output */
char *interface; /* desired i/f for stats, or NULL for all i/fs */
int unit; /* unit number for above */
@@ -354,7 +356,7 @@
af = AF_UNSPEC;
- while ((ch = getopt(argc, argv, "AaBbdf:ghI:iLlM:mN:np:rSstuWw:xz")) !=
-1)
+ while ((ch = getopt(argc, argv, "AaBbc:df:ghI:iLlM:mN:np:rSstuWw:xz"))
!= -1)
switch(ch) {
case 'A':
Aflag = 1;
@@ -368,6 +370,10 @@
case 'b':
bflag = 1;
break;
+ case 'c':
+ cflag = 1;
+ count = atoi(optarg);
+ break;
case 'd':
dflag = 1;
break;
--- netstat.1 2009-10-25 04:10:29.000000000 +0300
+++ netstat.1 2010-04-22 10:27:40.000000000 +0400
@@ -132,6 +132,7 @@
.Bk -words
.Nm
.Fl w Ar wait
+.Op Fl c Ar count
.Op Fl I Ar interface
.Op Fl d
.Op Fl M Ar core
@@ -141,7 +142,9 @@
At intervals of
.Ar wait
seconds,
-display the information regarding packet
+display
+.Ar count
+times the information regarding packet
traffic on all configured network interfaces
or a single
.Ar interface .
--- netstat.h 2009-10-25 04:10:29.000000000 +0300
+++ netstat.h 2010-04-22 10:29:12.000000000 +0400
@@ -39,6 +39,7 @@
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 */
+extern int cflag; /* repeat display output */
extern int dflag; /* show i/f dropped packets */
extern int gflag; /* show group (multicast) routing or stats */
extern int hflag; /* show counters in human readable format */
@@ -55,6 +56,7 @@
extern int zflag; /* zero stats */
extern int interval; /* repeat interval for i/f stats */
+extern int count; /* repeat display output */
extern char *interface; /* desired i/f for stats, or NULL for all i/fs */
extern int unit; /* unit number for above */
>Release-Note:
>Audit-Trail:
>Unformatted:
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