This diff adds something similar to cisco's ping display, giving a
visual display of good/dropped pings. Any interest in it? Example
output (with a couple of ^T during the run):
$ ping -g 192.168.41.21
PING 192.168.41.21 (192.168.41.21): 56 data bytes
....................................................................................................................................................................................................................load:
0.04 cmd: ping 8312 [running] 0.00u 0.00s 0% 117k
--- 192.168.41.21 ping statistics ---
212 packets transmitted, 212 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.342/0.636/28.579/1.940 ms
.................................!!...........................!!!...........................!!!!!!!!!.....................!!!...........................!!!...........................!!!!!!!!!.....................!!!...........................!!!!..........................!!!!!!!!!.....................!!!...........................!!!!..........................!!!!!!!!!.....................!!!...........................!!!!..........................!!!!!!!!!!....................!!!!..........................!!!!..........................!!!!!!!!!!....................!!!!..........................!!!!..........................!!!!!!!!!!....................!!!!..........................!!!!!..............load:
0.00 cmd: ping 8312 [running] 0.00u 0.00s 0% 118k
--- 192.168.41.21 ping statistics ---
924 packets transmitted, 800 packets received, 13.4% packet loss
round-trip min/avg/max/std-dev = 0.304/0.618/41.986/1.933 ms
(and while I'm there, if anyone has an idea why this one machine being
pinged, which is a 6.8 box with em(4), might periodically stop receiving
packets from a couple of hosts in the subnet while things are working
ok for others, I'm all ears ;) no interface errors, netlivelocks, etc.)
Index: ping.8
===================================================================
RCS file: /cvs/src/sbin/ping/ping.8,v
retrieving revision 1.63
diff -u -p -r1.63 ping.8
--- ping.8 11 Feb 2020 18:41:39 -0000 1.63
+++ ping.8 19 Feb 2021 15:11:19 -0000
@@ -66,7 +66,7 @@
.Nd send ICMP ECHO_REQUEST packets to network hosts
.Sh SYNOPSIS
.Nm ping
-.Op Fl DdEefHLnqRv
+.Op Fl DdEefgHLnqRv
.Op Fl c Ar count
.Op Fl I Ar sourceaddr
.Op Fl i Ar interval
@@ -79,7 +79,7 @@
.Op Fl w Ar maxwait
.Ar host
.Nm ping6
-.Op Fl DdEefHLmnqv
+.Op Fl DdEefgHLmnqv
.Op Fl c Ar count
.Op Fl h Ar hoplimit
.Op Fl I Ar sourceaddr
@@ -151,6 +151,21 @@ Only the superuser may use this option.
.Bf -emphasis
This can be very hard on a network and should be used with caution.
.Ef
+.It Fl g
+Graphic display.
+This provides a quick visual display of packets received and lost.
+For every
+.Dv ECHO_REPLY
+received, a period
+.Sq \&.
+is printed, while for every missed packet an exclamation mark
+.Sq !
+is printed.
+Duplicate and truncated replies are indicated with
+.Sq D
+and
+.Sq T
+respectively.
.It Fl H
Try reverse lookups for addresses.
.It Fl h Ar hoplimit
Index: ping.c
===================================================================
RCS file: /cvs/src/sbin/ping/ping.c,v
retrieving revision 1.243
diff -u -p -r1.243 ping.c
--- ping.c 29 Dec 2020 16:40:47 -0000 1.243
+++ ping.c 19 Feb 2021 15:11:19 -0000
@@ -145,7 +145,7 @@ int options;
#define F_QUIET 0x0010
#define F_RROUTE 0x0020
#define F_SO_DEBUG 0x0040
-/* 0x0080 */
+#define F_GRAPHIC 0x0080
#define F_VERBOSE 0x0100
/* 0x0200 */
#define F_HDRINCL 0x0400
@@ -297,8 +297,8 @@ main(int argc, char *argv[])
preload = 0;
datap = &outpack[ECHOLEN + ECHOTMLEN];
while ((ch = getopt(argc, argv, v6flag ?
- "c:DdEefHh:I:i:Ll:mNnp:qS:s:T:V:vw:" :
- "DEI:LRS:c:defHi:l:np:qs:T:t:V:vw:")) != -1) {
+ "c:DdEefgHh:I:i:Ll:mNnp:qS:s:T:V:vw:" :
+ "DEI:LRS:c:defgHi:l:np:qs:T:t:V:vw:")) != -1) {
switch(ch) {
case 'c':
npackets = strtonum(optarg, 0, INT64_MAX, &errstr);
@@ -326,6 +326,9 @@ main(int argc, char *argv[])
options |= F_FLOOD;
setvbuf(stdout, NULL, _IONBF, 0);
break;
+ case 'g':
+ options |= F_GRAPHIC;
+ break;
case 'H':
options |= F_HOSTNAME;
break;
@@ -879,6 +882,11 @@ main(int argc, char *argv[])
if (!(options & F_FLOOD) &&
(options & F_AUD_MISS))
fputc('\a', stderr);
+ if ((options & F_GRAPHIC) &&
+ !(options & F_FLOOD)) {
+ putchar('!');
+ fflush(stdout);
+ }
}
continue;
}
@@ -1329,7 +1337,14 @@ pr_pack(u_char *buf, int cc, struct msgh
if (options & F_FLOOD)
write(STDOUT_FILENO, &BSPACE, 1);
- else {
+ else if (options & F_GRAPHIC) {
+ if (dupflag)
+ putchar('D');
+ else if (cc - ECHOLEN < datalen)
+ putchar('T');
+ else
+ putchar('.');
+ } else {
printf("%d bytes from %s: icmp_seq=%u", cc,
pr_addr(from, fromlen), ntohs(seq));
if (v6flag)
@@ -1386,9 +1401,11 @@ pr_pack(u_char *buf, int cc, struct msgh
pr_ipopt(hlen, buf);
if (!(options & F_FLOOD)) {
- putchar('\n');
- if (v6flag && (options & F_VERBOSE))
- pr_exthdrs(mhdr);
+ if (!(options & F_GRAPHIC)) {
+ putchar('\n');
+ if (v6flag && (options & F_VERBOSE))
+ pr_exthdrs(mhdr);
+ }
fflush(stdout);
if (options & F_AUD_RECV)
fputc('\a', stderr);
