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Move DTK_ISODOW DTK_DOW and DTK_DOY to be type UNITS rather than

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RESERV. RESERV is meant for tokens like "now" and having them in that
    category throws errors like these when used as an input date:

    stark=# SELECT 'doy'::timestamptz;
    ERROR:  unexpected dtype 33 while parsing timestamptz "doy"
    LINE 1: SELECT 'doy'::timestamptz;
                   ^
    stark=# SELECT 'dow'::timestamptz;
    ERROR:  unexpected dtype 32 while parsing timestamptz "dow"
    LINE 1: SELECT 'dow'::timestamptz;
                   ^

    Found by LLVM's Libfuzzer
This commit is contained in:
Greg Stark 2015-09-06 04:02:57 +01:00
parent 567acf259b
commit 530d0c504f
2 changed files with 43 additions and 42 deletions
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6
src/backend/utils/adt/datetime.c
View File

@ -104,8 +104,8 @@ static const datetkn datetktbl[] = {
{"d", UNITS, DTK_DAY}, /* "day of month" for ISO input */
{"dec", MONTH, 12},
{"december", MONTH, 12},
{"dow", RESERV, DTK_DOW}, /* day of week */
{"doy", RESERV, DTK_DOY}, /* day of year */
{"dow", UNITS, DTK_DOW}, /* day of week */
{"doy", UNITS, DTK_DOY}, /* day of year */
{"dst", DTZMOD, SECS_PER_HOUR},
{EPOCH, RESERV, DTK_EPOCH}, /* "epoch" reserved for system epoch time */
{"feb", MONTH, 2},
@ -115,7 +115,7 @@ static const datetkn datetktbl[] = {
{"h", UNITS, DTK_HOUR}, /* "hour" */
{LATE, RESERV, DTK_LATE}, /* "infinity" reserved for "late time" */
{INVALID, RESERV, DTK_INVALID}, /* "invalid" reserved for bad time */
{"isodow", RESERV, DTK_ISODOW}, /* ISO day of week, Sunday == 7 */
{"isodow", UNITS, DTK_ISODOW}, /* ISO day of week, Sunday == 7 */
{"isoyear", UNITS, DTK_ISOYEAR}, /* year in terms of the ISO week date */
{"j", UNITS, DTK_JULIAN},
{"jan", MONTH, 1},

79
src/backend/utils/adt/timestamp.c
View File

@ -3953,6 +3953,26 @@ timestamp_part(PG_FUNCTION_ARGS)
result = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
break;
case DTK_DOW:
case DTK_ISODOW:
if (timestamp2tm(timestamp, NULL, tm, &fsec, NULL, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
break;
case DTK_DOY:
if (timestamp2tm(timestamp, NULL, tm, &fsec, NULL, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
case DTK_TZ:
case DTK_TZ_MINUTE:
case DTK_TZ_HOUR:
@ -3995,25 +4015,6 @@ timestamp_part(PG_FUNCTION_ARGS)
#endif
break;
}
case DTK_DOW:
case DTK_ISODOW:
if (timestamp2tm(timestamp, NULL, tm, &fsec, NULL, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
break;
case DTK_DOY:
if (timestamp2tm(timestamp, NULL, tm, &fsec, NULL, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
default:
ereport(ERROR,
@ -4187,6 +4188,26 @@ timestamptz_part(PG_FUNCTION_ARGS)
result = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
break;
case DTK_DOW:
case DTK_ISODOW:
if (timestamp2tm(timestamp, &tz, tm, &fsec, &tzn, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
break;
case DTK_DOY:
if (timestamp2tm(timestamp, &tz, tm, &fsec, &tzn, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
default:
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@ -4208,26 +4229,6 @@ timestamptz_part(PG_FUNCTION_ARGS)
#endif
break;
case DTK_DOW:
case DTK_ISODOW:
if (timestamp2tm(timestamp, &tz, tm, &fsec, &tzn, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
break;
case DTK_DOY:
if (timestamp2tm(timestamp, &tz, tm, &fsec, &tzn, NULL) != 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
default:
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),