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5.2 merge

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This commit is contained in:
Sergei Golubchik
2013-03-26 19:09:47 +01:00
parent 045c498691 48be80cd95
commit e308d7417b
12 changed files with 171 additions and 125 deletions
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99
sql/spatial.cc
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@ -443,18 +443,19 @@ const char *Geometry::append_points(String *txt, uint32 n_points,
const char *Geometry::get_mbr_for_points(MBR *mbr, const char *data,
uint offset) const
{
uint32 points;
uint32 n_points;
/* read number of points */
if (no_data(data, 4))
return 0;
points= uint4korr(data);
n_points= uint4korr(data);
data+= 4;
if (no_data(data, (POINT_DATA_SIZE + offset) * points))
if (n_points > max_n_points ||
no_data(data, (POINT_DATA_SIZE + offset) * n_points))
return 0;
/* Calculate MBR for points */
while (points--)
while (n_points--)
{
data+= offset;
mbr->add_xy(data, data + SIZEOF_STORED_DOUBLE);
@ -558,9 +559,12 @@ const Geometry::Class_info *Gis_point::get_class_info() const
uint32 Gis_line_string::get_data_size() const
{
if (no_data(m_data, 4))
uint32 n_points, size;
if (no_data(m_data, 4) ||
(n_points= uint4korr(m_data)) > max_n_points ||
no_data(m_data, (size= 4 + n_points * POINT_DATA_SIZE)))
return GET_SIZE_ERROR;
return 4 + uint4korr(m_data) * POINT_DATA_SIZE;
return size;
}
@ -668,7 +672,8 @@ int Gis_line_string::geom_length(double *len, const char **end) const
return 1;
n_points= uint4korr(data);
data+= 4;
if (n_points < 1 || no_data(data, POINT_DATA_SIZE * n_points))
if (n_points < 1 || n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points))
return 1;
get_point(&prev_x, &prev_y, data);
@ -716,7 +721,7 @@ int Gis_line_string::is_closed(int *closed) const
return 0;
}
data+= 4;
if (n_points == 0 ||
if (n_points == 0 || n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points))
return 1;
@ -752,6 +757,9 @@ int Gis_line_string::end_point(String *result) const
if (no_data(m_data, 4))
return 1;
n_points= uint4korr(m_data);
if (n_points == 0 || n_points > max_n_points ||
no_data(m_data, POINT_DATA_SIZE * n_points))
return 1;
return create_point(result, m_data + 4 + (n_points - 1) * POINT_DATA_SIZE);
}
@ -761,11 +769,14 @@ int Gis_line_string::point_n(uint32 num, String *result) const
uint32 n_points;
if (no_data(m_data, 4))
return 1;
num--;
n_points= uint4korr(m_data);
if ((uint32) (num - 1) >= n_points) // means (num > n_points || num < 1)
if (num >= n_points ||
num > max_n_points || // means (num > n_points || num < 1)
no_data(m_data, num * POINT_DATA_SIZE))
return 1;
return create_point(result, m_data + 4 + (num - 1) * POINT_DATA_SIZE);
return create_point(result, m_data + 4 + num*POINT_DATA_SIZE);
}
@ -815,6 +826,7 @@ const Geometry::Class_info *Gis_line_string::get_class_info() const
uint32 Gis_polygon::get_data_size() const
{
uint32 n_linear_rings;
uint32 n_points;
const char *data= m_data;
if (no_data(data, 4))
@ -824,10 +836,13 @@ uint32 Gis_polygon::get_data_size() const
while (n_linear_rings--)
{
if (no_data(data, 4))
if (no_data(data, 4) ||
(n_points= uint4korr(data)) > max_n_points)
return GET_SIZE_ERROR;
data+= 4 + uint4korr(data)*POINT_DATA_SIZE;
data+= 4 + n_points*POINT_DATA_SIZE;
}
if (no_data(data, 0))
return GET_SIZE_ERROR;
return (uint32) (data - m_data);
}
@ -966,7 +981,8 @@ bool Gis_polygon::get_data_as_wkt(String *txt, const char **end) const
return 1;
n_points= uint4korr(data);
data+= 4;
if (no_data(data, POINT_DATA_SIZE * n_points) ||
if (n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points) ||
txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1) * 2 + 1) * n_points))
return 1;
txt->qs_append('(');
@ -1020,7 +1036,8 @@ int Gis_polygon::area(double *ar, const char **end_of_data) const
if (no_data(data, 4))
return 1;
n_points= uint4korr(data);
if (no_data(data, POINT_DATA_SIZE * n_points))
if (n_points == 0 || n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points))
return 1;
get_point(&prev_x, &prev_y, data+4);
data+= (4+POINT_DATA_SIZE);
@ -1056,7 +1073,8 @@ int Gis_polygon::exterior_ring(String *result) const
n_points= uint4korr(data);
data+= 4;
length= n_points * POINT_DATA_SIZE;
if (no_data(data, length) || result->reserve(1 + 4 + 4 + length))
if (n_points > max_n_points ||
no_data(data, length) || result->reserve(1+4+4+ length))
return 1;
result->q_append((char) wkb_ndr);
@ -1122,13 +1140,11 @@ int Gis_polygon::centroid_xy(double *x, double *y) const
const char *data= m_data;
bool first_loop= 1;
if (no_data(data, 4))
if (no_data(data, 4) ||
(n_linear_rings= uint4korr(data)) == 0)
return 1;
n_linear_rings= uint4korr(data);
data+= 4;
DBUG_ASSERT(n_linear_rings > 0);
while (n_linear_rings--)
{
uint32 n_points, org_n_points;
@ -1141,7 +1157,8 @@ int Gis_polygon::centroid_xy(double *x, double *y) const
return 1;
org_n_points= n_points= uint4korr(data);
data+= 4;
if (no_data(data, POINT_DATA_SIZE * n_points))
if (n_points == 0 || n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points))
return 1;
get_point(&prev_x, &prev_y, data);
data+= POINT_DATA_SIZE;
@ -1268,9 +1285,14 @@ const Geometry::Class_info *Gis_polygon::get_class_info() const
uint32 Gis_multi_point::get_data_size() const
{
if (no_data(m_data, 4))
return GET_SIZE_ERROR;
return 4 + uint4korr(m_data)*(POINT_DATA_SIZE + WKB_HEADER_SIZE);
uint32 n_points;
uint32 size;
if (no_data(m_data, 4) ||
(n_points= uint4korr(m_data)) > max_n_points ||
no_data(m_data, (size= 4 + n_points*(POINT_DATA_SIZE + WKB_HEADER_SIZE))))
return GET_SIZE_ERROR;
return size;
}
@ -1364,8 +1386,8 @@ bool Gis_multi_point::get_data_as_wkt(String *txt, const char **end) const
return 1;
n_points= uint4korr(m_data);
if (no_data(m_data+4,
n_points * (POINT_DATA_SIZE + WKB_HEADER_SIZE)) ||
if (n_points > max_n_points ||
no_data(m_data+4, n_points * (POINT_DATA_SIZE + WKB_HEADER_SIZE)) ||
txt->reserve(((MAX_DIGITS_IN_DOUBLE + 1) * 2 + 1) * n_points))
return 1;
*end= append_points(txt, n_points, m_data+4, WKB_HEADER_SIZE);
@ -1446,6 +1468,7 @@ const Geometry::Class_info *Gis_multi_point::get_class_info() const
uint32 Gis_multi_line_string::get_data_size() const
{
uint32 n_line_strings;
uint32 n_points;
const char *data= m_data;
if (no_data(data, 4))
@ -1455,11 +1478,13 @@ uint32 Gis_multi_line_string::get_data_size() const
while (n_line_strings--)
{
if (no_data(data, WKB_HEADER_SIZE + 4))
if (no_data(data, WKB_HEADER_SIZE + 4) ||
(n_points= uint4korr(data + WKB_HEADER_SIZE)) > max_n_points)
return GET_SIZE_ERROR;
data+= (WKB_HEADER_SIZE + 4 + uint4korr(data + WKB_HEADER_SIZE) *
POINT_DATA_SIZE);
data+= (WKB_HEADER_SIZE + 4 + n_points*POINT_DATA_SIZE);
}
if (no_data(data, 0))
return GET_SIZE_ERROR;
return (uint32) (data - m_data);
}
@ -1583,7 +1608,8 @@ bool Gis_multi_line_string::get_data_as_wkt(String *txt,
return 1;
n_points= uint4korr(data + WKB_HEADER_SIZE);
data+= WKB_HEADER_SIZE + 4;
if (no_data(data, n_points * POINT_DATA_SIZE) ||
if (n_points > max_n_points ||
no_data(data, n_points * POINT_DATA_SIZE) ||
txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1) * 2 + 1) * n_points))
return 1;
txt->qs_append('(');
@ -1644,7 +1670,7 @@ int Gis_multi_line_string::geometry_n(uint32 num, String *result) const
return 1;
n_points= uint4korr(data + WKB_HEADER_SIZE);
length= WKB_HEADER_SIZE + 4+ POINT_DATA_SIZE * n_points;
if (no_data(data, length))
if (n_points > max_n_points || no_data(data, length))
return 1;
if (!--num)
break;
@ -1755,6 +1781,7 @@ const Geometry::Class_info *Gis_multi_line_string::get_class_info() const
uint32 Gis_multi_polygon::get_data_size() const
{
uint32 n_polygons;
uint32 n_points;
const char *data= m_data;
if (no_data(data, 4))
@ -1773,11 +1800,14 @@ uint32 Gis_multi_polygon::get_data_size() const
while (n_linear_rings--)
{
if (no_data(data, 4))
if (no_data(data, 4) ||
(n_points= uint4korr(data)) > max_n_points)
return GET_SIZE_ERROR;
data+= 4 + uint4korr(data) * POINT_DATA_SIZE;
data+= 4 + n_points * POINT_DATA_SIZE;
}
}
if (no_data(data, 0))
return GET_SIZE_ERROR;
return (uint32) (data - m_data);
}
@ -1905,7 +1935,8 @@ bool Gis_multi_polygon::get_data_as_wkt(String *txt, const char **end) const
return 1;
uint32 n_points= uint4korr(data);
data+= 4;
if (no_data(data, POINT_DATA_SIZE * n_points) ||
if (n_points > max_n_points ||
no_data(data, POINT_DATA_SIZE * n_points) ||
txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1) * 2 + 1) * n_points,
512))
return 1;
@ -1988,6 +2019,8 @@ int Gis_multi_polygon::geometry_n(uint32 num, String *result) const
if (no_data(data, 4))
return 1;
n_points= uint4korr(data);
if (n_points > max_n_points)
return 1;
data+= 4 + POINT_DATA_SIZE * n_points;
}
} while (--num);