SEO

Greetings all,

In some cases it is handy to hear an audible signal for each received
ICMP ping reply, when doing network diagnostics. On some UNIX systems
this feature is called by the -a command line option.

Here is a (unified diff) patch for the -a option against OpenBSD-current
sources CVS'ed October 12, 2003. If you like it, I hope it will be included
in the main source tree.

regards,

Arno "Antarez" Kruse

Om mani padme hum
? sbin/ping/ping
? sbin/ping/ping.cat8
Index: sbin/ping/ping.8
================================================== =================
RCS file: /cvs/src/sbin/ping/ping.8,v
retrieving revision 1.28
diff -u -r1.28 ping.8
--- sbin/ping/ping.8 3 Jun 2003 13:16:08 -0000 1.28
+++ sbin/ping/ping.8 12 Oct 2003 17:30:47 -0000
@@ -41,7 +41,7 @@
.Sh SYNOPSIS
.Nm ping
.Bk -words
-.Op Fl DdfLnqRrv
+.Op Fl aDdfLnqRrv
.Op Fl c Ar count
.Op Fl I Ar ifaddr
.Op Fl i Ar wait
@@ -76,6 +76,10 @@
packet.
The options are as follows:
.Bl -tag -width Ds
+.It Fl a
+Audible reply. Print a bell (ASCII 0x07) character for each
+.Tn ECHO_REPLY
+received.
.It Fl c Ar count
Stop after sending
.Ar count
Index: sbin/ping/ping.c
================================================== =================
RCS file: /cvs/src/sbin/ping/ping.c,v
retrieving revision 1.63
diff -u -r1.63 ping.c
--- sbin/ping/ping.c 24 Jul 2003 03:10:04 -0000 1.63
+++ sbin/ping/ping.c 12 Oct 2003 17:30:50 -0000
@@ -119,6 +119,7 @@
#define F_SADDR 0x200
#define F_HDRINCL 0x400
#define F_TTL 0x800
+#define F_AUDIBLE 0x2000

/* multicast options */
int moptions;
@@ -145,6 +146,7 @@
char DOT = '.';
char *hostname;
int ident; /* process id to identify our packets */
+char BBELL = '\a'; /* characters written for AUDIBLE */

/* counters */
long npackets; /* max packets to transmit */
@@ -209,8 +211,11 @@

preload = 0;
datap = &outpack[8 + sizeof(struct tvi)];
- while ((ch = getopt(argc, argv, "DI:LRS:c:dfh:i:l:np:qrs:T:t:vw:")) != -1)
+ while ((ch = getopt(argc, argv, "DI:LRS:c:adfh:i:l:np:qrs:T:t:vw:")) != -1)
switch(ch) {
+ case 'a':
+ options |= F_AUDIBLE;
+ break;
case 'c':
npackets = strtol(optarg, NULL, 0);
if (npackets <= 0)
@@ -723,6 +728,8 @@
(int)(triptime % 1000));
if (dupflag)
(void)printf(" (DUP!)");
+ if (options & F_AUDIBLE)
+ (void)write(STDOUT_FILENO, &BBELL, 1);
/* check the data */
cp = (u_char *)&icp->icmp_data[sizeof(struct tvi)];
dp = &outpack[8 + sizeof(struct tvi)];
@@ -1329,7 +1336,7 @@
usage(void)
{
(void)fprintf(stderr,
- "usage: ping [-DdfLnqRrv] [-c count] [-I ifaddr] [-i wait]\n"
+ "usage: ping [-aDdfLnqRrv] [-c count] [-I ifaddr] [-i wait]\n"
"\t[-l preload] [-p pattern] [-s packetsize] [-T tos] [-t ttl]\n"
"\t[-w maxwait] host\n");
exit(1);