Here is a patch stolen from OpenBSD via NetBSD (rev. 1.75 ping/ping.c)
which does two things:
- stores timestamp in network byte order;
- removes an assumption that sizeof(struct timeval) == 8 (it's not
true on sparc64).
Any comments?
Index: ping.c
===================================================================
RCS file: /home/ncvs/src/sbin/ping/ping.c,v
retrieving revision 1.105
diff -u -r1.105 ping.c
--- ping.c 14 Aug 2004 17:46:10 -0000 1.105
+++ ping.c 28 Sep 2004 14:51:04 -0000
@@ -92,7 +92,7 @@
#include <unistd.h>
#define INADDR_LEN ((int)sizeof(in_addr_t))
-#define TIMEVAL_LEN ((int)sizeof(struct timeval))
+#define TIMEVAL_LEN ((int)sizeof(struct tv32))
#define MASK_LEN (ICMP_MASKLEN - ICMP_MINLEN)
#define TS_LEN (ICMP_TSLEN - ICMP_MINLEN)
#define DEFDATALEN 56 /* default data length */
@@ -110,6 +110,11 @@
#define CLR(bit) (A(bit) &= (~B(bit)))
#define TST(bit) (A(bit) & B(bit))
+struct tv32 {
+ int32_t tv32_sec;
+ int32_t tv32_usec;
+};
+
/* various options */
int options;
#define F_FLOOD 0x0001
@@ -838,6 +843,7 @@
pinger(void)
{
struct timeval now;
+ struct tv32 tv32;
struct ip *ip;
struct icmp *icp;
int cc, i;
@@ -856,13 +862,15 @@
if ((options & F_TIME) || timing) {
(void)gettimeofday(&now, NULL);
+ tv32.tv32_sec = htonl(now.tv_sec);
+ tv32.tv32_usec = htonl(now.tv_usec);
if (options & F_TIME)
icp->icmp_otime = htonl((now.tv_sec % (24*60*60))
* 1000 + now.tv_usec / 1000);
if (timing)
- bcopy((void *)&now,
+ bcopy((void *)&tv32,
(void *)&outpack[ICMP_MINLEN + phdr_len],
- sizeof(struct timeval));
+ sizeof(tv32));
}
cc = ICMP_MINLEN + phdr_len + datalen;
@@ -942,6 +950,7 @@
triptime = 0.0;
if (timing) {
struct timeval tv1;
+ struct tv32 tv32;
#ifndef icmp_data
tp = &icp->icmp_ip;
#else
@@ -951,7 +960,9 @@
if (cc - ICMP_MINLEN - phdr_len >= sizeof(tv1)) {
/* Copy to avoid alignment problems: */
- memcpy(&tv1, tp, sizeof(tv1));
+ memcpy(&tv32, tp, sizeof(tv32));
+ tv1.tv_sec = ntohl(tv32.tv32_sec);
+ tv1.tv_usec = ntohl(tv32.tv32_usec);
tvsub(tv, &tv1);
triptime = ((double)tv->tv_sec) * 1000.0 +
((double)tv->tv_usec) / 1000.0;
%%%
--
Maxim Konovalov
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