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authorTom Lane2013-03-04 20:13:31 +0000
committerTom Lane2013-03-04 20:13:31 +0000
commit542eeba26992305d872be699158cb3ab1c2be6e6 (patch)
treedb767a4a7d1e841003d5aa90380c38950bd47ba7 /src/interfaces
parent0ea1f6e98fc84f1c5f66cc6355f6e20582295e81 (diff)
Fix overflow check in tm2timestamp (this time for sure).
I fixed this code back in commit 841b4a2d5, but didn't think carefully enough about the behavior near zero, which meant it improperly rejected 1999-12-31 24:00:00. Per report from Magnus Hagander.
Diffstat (limited to 'src/interfaces')
-rw-r--r--src/interfaces/ecpg/pgtypeslib/timestamp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/interfaces/ecpg/pgtypeslib/timestamp.c b/src/interfaces/ecpg/pgtypeslib/timestamp.c
index 36f101bb1c..cccd2814d2 100644
--- a/src/interfaces/ecpg/pgtypeslib/timestamp.c
+++ b/src/interfaces/ecpg/pgtypeslib/timestamp.c
@@ -76,8 +76,9 @@ tm2timestamp(struct tm * tm, fsec_t fsec, int *tzp, timestamp * result)
if ((*result - time) / USECS_PER_DAY != dDate)
return -1;
/* check for just-barely overflow (okay except time-of-day wraps) */
- if ((*result < 0 && dDate >= 0) ||
- (*result >= 0 && dDate < 0))
+ /* caution: we want to allow 1999-12-31 24:00:00 */
+ if ((*result < 0 && dDate > 0) ||
+ (*result > 0 && dDate < -1))
return -1;
#else
*result = dDate * SECS_PER_DAY + time;