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authorLv Zheng <lv.zheng.2015@gmail.com>2015-08-11 02:23:03 +0000
committerChristian Neukirchen <chneukirchen@gmail.com>2015-08-11 12:06:48 +0200
commit6c1da49ae4ec33228262366d6d0437a5d38555e0 (patch)
tree6884d740f0a6b6dc1d5abfecc5baf96c5e3d8999 /nq.c
parent83932d1c5d3e538eb543b73bbdf6dfa339530da3 (diff)
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nq.c: fix time_t overflow on 32-bit machines
In systems where time_t is defined as 32-bit integer, the multiplication
by 1000 to get millisecond will cause an integer overflow.

Fix this problem by explicit integer conversion.
Diffstat (limited to 'nq.c')
-rw-r--r--nq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nq.c b/nq.c
index 86177f3..7401c2e 100644
--- a/nq.c
+++ b/nq.c
@@ -84,7 +84,7 @@ main(int argc, char *argv[])
 
 	/* timestamp is milliseconds since epoch.  */
 	gettimeofday(&started, NULL);
-	ms = started.tv_sec*1000 + started.tv_usec/1000;
+	ms = (int64_t)started.tv_sec*1000 + started.tv_usec/1000;
 
 	while ((opt = getopt(argc, argv, "+htw")) != -1) {
 		switch (opt) {