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Cleaned up recent SIGINFO changes.

Browse source 
Simplified average calculations.  This also fixes potential overflow errors
and minor rounding inconsistencies (always round to nearest now).

Don't lose more SIGINFOs than necessary.

Print \r at the start of the status message.  This clears the dots that
are sometimes left by ping -f.

Reviewed by:	sef
This commit is contained in:
Bruce Evans 1996-12-10 14:41:22 +00:00
parent 9d12c4da86
commit 7d81b35c91
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=20280
1 changed files with 19 additions and 24 deletions
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43
sbin/ping/ping.c
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@ -66,7 +66,7 @@ static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <signal.h>
#include <termios.h>
#include <netinet/in_systm.h>
@ -356,8 +356,11 @@ main(argc, argv)
(void)signal(SIGINT, finish);
(void)signal(SIGALRM, catcher);
(void)signal(SIGINFO, status);
/*
* Use sigaction instead of signal() to get unambiguous semantics
* for SIGINFO, in particular with SA_RESTART not set.
*/
si_sa.sa_handler = status;
sigemptyset(&si_sa.sa_mask);
si_sa.sa_flags = 0;
@ -378,11 +381,12 @@ main(argc, argv)
if ((options & F_FLOOD) == 0)
catcher(); /* start things going */
for (;;check_status()) {
for (;;) {
struct sockaddr_in from;
register int cc;
int fromlen;
check_status();
if (options & F_FLOOD) {
pinger();
timeout.tv_sec = 0;
@ -749,29 +753,24 @@ tvsub(out, in)
*/
void
status() {
status(sig)
int sig;
{
siginfo_p = 1;
}
void
check_status()
{
double temp_min = nreceived ? tmin : 0;
if (siginfo_p) {
(void)fprintf(stderr, "%ld/%ld packets received (%ld%%) "
"%.3f min / %.3f avg / %.3f max\n",
nreceived, ntransmitted,
(ntransmitted ?
100 - (int) (((ntransmitted - nreceived) * 100)
/ ntransmitted)
: 0),
temp_min,
(nreceived + nrepeats) ?
tsum / (nreceived + nrepeats)
: tsum,
tmax);
siginfo_p = 0;
(void)fprintf(stderr,
"\r%ld/%ld packets received (%.0f%%) %.3f min / %.3f avg / %.3f max\n",
nreceived, ntransmitted,
ntransmitted ? nreceived * 100.0 / ntransmitted : 0.0,
nreceived ? tmin : 0.0,
nreceived + nrepeats ? tsum / (nreceived + nrepeats) : tsum,
tmax);
}
}
@ -782,7 +781,6 @@ check_status()
void
finish()
{
register int i;
struct termios ts;
(void)signal(SIGINT, SIG_IGN);
@ -801,12 +799,9 @@ finish()
(int) (((ntransmitted - nreceived) * 100) /
ntransmitted));
(void)putchar('\n');
if (nreceived && timing) {
/* Only display average to microseconds */
i = 1000.0 * tsum / (nreceived + nrepeats);
if (nreceived && timing)
(void)printf("round-trip min/avg/max = %.3f/%.3f/%.3f ms\n",
tmin, ((double)i) / 1000.0, tmax);
}
tmin, tsum / (nreceived + nrepeats), tmax);
if (reset_kerninfo && tcgetattr(STDOUT_FILENO, &ts) != -1) {
ts.c_lflag &= ~NOKERNINFO;
tcsetattr(STDOUT_FILENO, TCSANOW, &ts);