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authorunknown <cmiller@zippy.cornsilk.net>2006-10-17 11:23:07 -0400
committerunknown <cmiller@zippy.cornsilk.net>2006-10-17 11:23:07 -0400
commitdd8a33c0bcbf092bca3aac03ae8f9414dc0ae9f8 (patch)
treebeb33bece3b1deac1c65d795803da3b3d2e07f51 /sql-common/my_time.c
parente1ff81bbce1bb71b447b754b47521db3e0cd92b0 (diff)
parent309962243d7ade38854c74d729d6dbb33c4a8ff4 (diff)
downloadmariadb-git-dd8a33c0bcbf092bca3aac03ae8f9414dc0ae9f8.tar.gz
Merge bk-internal.mysql.com:/home/bk/mysql-5.1
into zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint BitKeeper/etc/collapsed: auto-union BitKeeper/etc/ignore: auto-union Makefile.am: Auto merged client/mysql.cc: Auto merged client/mysqldump.c: Auto merged client/mysqltest.c: Auto merged configure.in: Auto merged include/m_ctype.h: Auto merged include/my_global.h: Auto merged mysql-test/lib/mtr_process.pl: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/binlog_row_mix_innodb_myisam.result: Auto merged mysql-test/r/csv.result: Auto merged mysql-test/r/ctype_utf8.result: Auto merged mysql-test/r/func_time.result: Auto merged mysql-test/r/mysql.result: Auto merged mysql-test/r/partition.result: Auto merged mysql-test/r/ps.result: Auto merged mysql-test/r/strict.result: Auto merged mysql-test/r/trigger.result: Auto merged mysql-test/r/warnings.result: Auto merged mysql-test/t/csv.test: Auto merged mysql-test/t/ctype_utf8.test: Auto merged mysql-test/t/func_time.test: Auto merged mysql-test/t/mysql.test: Auto merged mysql-test/t/partition.test: Auto merged mysql-test/t/ps.test: Auto merged mysql-test/t/trigger.test: Auto merged sql/field.cc: Auto merged sql/filesort.cc: Auto merged sql/item.cc: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/item_timefunc.cc: Auto merged sql/item_timefunc.h: Auto merged sql/log.cc: Auto merged sql/mysql_priv.h: Auto merged sql/opt_range.cc: Auto merged sql/opt_range.h: Auto merged sql/set_var.cc: Auto merged sql/sql_acl.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.h: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_update.cc: Auto merged sql/sql_view.cc: Auto merged sql/sql_yacc.yy: Auto merged vio/viosocket.c: Auto merged
Diffstat (limited to 'sql-common/my_time.c')
-rw-r--r--sql-common/my_time.c90
1 files changed, 69 insertions, 21 deletions
diff --git a/sql-common/my_time.c b/sql-common/my_time.c
index b4cfe041529..29de0504468 100644
--- a/sql-common/my_time.c
+++ b/sql-common/my_time.c
@@ -465,8 +465,10 @@ err:
There may be an optional [.second_part] after seconds
length Length of str
l_time Store result here
- was_cut Set to 1 if value was cut during conversion or to 0
- otherwise.
+ warning Set MYSQL_TIME_WARN_TRUNCATED flag if the input string
+ was cut during conversion, and/or
+ MYSQL_TIME_WARN_OUT_OF_RANGE flag, if the value is
+ out of range.
NOTES
Because of the extra days argument, this function can only
@@ -478,15 +480,16 @@ err:
*/
my_bool str_to_time(const char *str, uint length, MYSQL_TIME *l_time,
- int *was_cut)
+ int *warning)
{
- long date[5],value;
+ ulong date[5];
+ ulonglong value;
const char *end=str+length, *end_of_days;
my_bool found_days,found_hours;
uint state;
l_time->neg=0;
- *was_cut= 0;
+ *warning= 0;
for (; str != end && my_isspace(&my_charset_latin1,*str) ; str++)
length--;
if (str != end && *str == '-')
@@ -501,13 +504,16 @@ my_bool str_to_time(const char *str, uint length, MYSQL_TIME *l_time,
/* Check first if this is a full TIMESTAMP */
if (length >= 12)
{ /* Probably full timestamp */
+ int was_cut;
enum enum_mysql_timestamp_type
res= str_to_datetime(str, length, l_time,
- (TIME_FUZZY_DATE | TIME_DATETIME_ONLY), was_cut);
+ (TIME_FUZZY_DATE | TIME_DATETIME_ONLY), &was_cut);
if ((int) res >= (int) MYSQL_TIMESTAMP_ERROR)
+ {
+ if (was_cut)
+ *warning|= MYSQL_TIME_WARN_TRUNCATED;
return res == MYSQL_TIMESTAMP_ERROR;
- /* We need to restore was_cut flag since str_to_datetime can modify it */
- *was_cut= 0;
+ }
}
/* Not a timestamp. Try to get this as a DAYS_TO_SECOND string */
@@ -587,7 +593,7 @@ fractional:
if (field_length > 0)
value*= (long) log_10_int[field_length];
else if (field_length < 0)
- *was_cut= 1;
+ *warning|= MYSQL_TIME_WARN_TRUNCATED;
date[4]=value;
}
else
@@ -601,10 +607,7 @@ fractional:
((str[1] == '-' || str[1] == '+') &&
(end - str) > 2 &&
my_isdigit(&my_charset_latin1, str[2]))))
- {
- *was_cut= 1;
return 1;
- }
if (internal_format_positions[7] != 255)
{
@@ -623,12 +626,12 @@ fractional:
}
}
- /* Some simple checks */
- if (date[2] >= 60 || date[3] >= 60)
- {
- *was_cut= 1;
+ /* Integer overflow checks */
+ if (date[0] > UINT_MAX || date[1] > UINT_MAX ||
+ date[2] > UINT_MAX || date[3] > UINT_MAX ||
+ date[4] > UINT_MAX)
return 1;
- }
+
l_time->year= 0; /* For protocol::store_time */
l_time->month= 0;
l_time->day= date[0];
@@ -638,6 +641,10 @@ fractional:
l_time->second_part= date[4];
l_time->time_type= MYSQL_TIMESTAMP_TIME;
+ /* Check if the value is valid and fits into TIME range */
+ if (check_time_range(l_time, warning))
+ return 1;
+
/* Check if there is garbage at end of the TIME specification */
if (str != end)
{
@@ -645,7 +652,7 @@ fractional:
{
if (!my_isspace(&my_charset_latin1,*str))
{
- *was_cut= 1;
+ *warning|= MYSQL_TIME_WARN_TRUNCATED;
break;
}
} while (++str != end);
@@ -655,6 +662,47 @@ fractional:
/*
+ Check 'time' value to lie in the TIME range
+
+ SYNOPSIS:
+ check_time_range()
+ time pointer to TIME value
+ warning set MYSQL_TIME_WARN_OUT_OF_RANGE flag if the value is out of range
+
+ DESCRIPTION
+ If the time value lies outside of the range [-838:59:59, 838:59:59],
+ set it to the closest endpoint of the range and set
+ MYSQL_TIME_WARN_OUT_OF_RANGE flag in the 'warning' variable.
+
+ RETURN
+ 0 time value is valid, but was possibly truncated
+ 1 time value is invalid
+*/
+
+int check_time_range(struct st_mysql_time *time, int *warning)
+{
+ longlong hour;
+
+ if (time->minute >= 60 || time->second >= 60)
+ return 1;
+
+ hour= time->hour + (24*time->day);
+ if (hour <= TIME_MAX_HOUR &&
+ (hour != TIME_MAX_HOUR || time->minute != TIME_MAX_MINUTE ||
+ time->second != TIME_MAX_SECOND || !time->second_part))
+ return 0;
+
+ time->day= 0;
+ time->hour= TIME_MAX_HOUR;
+ time->minute= TIME_MAX_MINUTE;
+ time->second= TIME_MAX_SECOND;
+ time->second_part= 0;
+ *warning|= MYSQL_TIME_WARN_OUT_OF_RANGE;
+ return 0;
+}
+
+
+/*
Prepare offset of system time zone from UTC for my_system_gmt_sec() func.
SYNOPSIS
@@ -840,7 +888,7 @@ void set_zero_time(MYSQL_TIME *tm, enum enum_mysql_timestamp_type time_type)
int my_time_to_str(const MYSQL_TIME *l_time, char *to)
{
uint extra_hours= 0;
- return my_sprintf(to, (to, "%s%02d:%02d:%02d",
+ return my_sprintf(to, (to, "%s%02u:%02u:%02u",
(l_time->neg ? "-" : ""),
extra_hours+ l_time->hour,
l_time->minute,
@@ -849,7 +897,7 @@ int my_time_to_str(const MYSQL_TIME *l_time, char *to)
int my_date_to_str(const MYSQL_TIME *l_time, char *to)
{
- return my_sprintf(to, (to, "%04d-%02d-%02d",
+ return my_sprintf(to, (to, "%04u-%02u-%02u",
l_time->year,
l_time->month,
l_time->day));
@@ -857,7 +905,7 @@ int my_date_to_str(const MYSQL_TIME *l_time, char *to)
int my_datetime_to_str(const MYSQL_TIME *l_time, char *to)
{
- return my_sprintf(to, (to, "%04d-%02d-%02d %02d:%02d:%02d",
+ return my_sprintf(to, (to, "%04u-%02u-%02u %02u:%02u:%02u",
l_time->year,
l_time->month,
l_time->day,