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Commita54d587

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Guard against null t->tm_zone in strftime.c.
The upstream IANA code does not guard against null TM_ZONE pointers in thisfunction, but in our code there is such a check in the other pre-existinguse of t->tm_zone. We do have some places that set pg_tm.tm_zone to NULL.I'm not entirely sure it's possible to reach strftime with such a value,but I'm not sure it isn't either, so be safe.Per Coverity complaint.
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‎src/timezone/strftime.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -458,7 +458,8 @@ _fmt(const char *format, const struct pg_tm * t, char *pt, const char *ptlim,
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negative=diff<0;
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if (diff==0)
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{
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negative=t->tm_zone[0]=='-';
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if (t->tm_zone!=NULL)
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negative=t->tm_zone[0]=='-';
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}
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if (negative)
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{

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