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authorTamas Bunth <tamas.bunth@collabora.co.uk>2018-09-06 16:58:42 +0200
committerAndras Timar <andras.timar@collabora.com>2018-09-07 15:42:59 +0200
commit44cef0d785c21f97e9f2b4f089491957301b8063 (patch)
treeb37440089d9d009d37145a579b8ade30ee513735 /connectivity/source
parent2d7dedd1dd1393c9e593cfde2329e24bfdf48fe5 (diff)
mysqlc: ensure cursor is not out of range
when calling getXXX() methods of a simple result set. Change-Id: I9e018385bb73468ea520b03275232c0982cbcba0 Reviewed-on: https://gerrit.libreoffice.org/60095 Tested-by: Jenkins Reviewed-by: Tamás Bunth <btomi96@gmail.com>
Diffstat (limited to 'connectivity/source')
-rw-r--r--connectivity/source/drivers/mysqlc/mysqlc_resultset.cxx85
-rw-r--r--connectivity/source/drivers/mysqlc/mysqlc_resultset.hxx7
2 files changed, 70 insertions, 22 deletions
diff --git a/connectivity/source/drivers/mysqlc/mysqlc_resultset.cxx b/connectivity/source/drivers/mysqlc/mysqlc_resultset.cxx
index 9fa2f64613c0..407e927527af 100644
--- a/connectivity/source/drivers/mysqlc/mysqlc_resultset.cxx
+++ b/connectivity/source/drivers/mysqlc/mysqlc_resultset.cxx
@@ -75,6 +75,14 @@ std::vector<OUString> lcl_split(const OUString& rStr, sal_Unicode cSeparator)
}
}
+void OResultSet::checkRowIndex()
+{
+ if (m_nRowPosition <= 0 || m_nRowPosition > m_nRowCount)
+ {
+ throw SQLException("Cursor position out of range", *this, rtl::OUString(), 1, Any());
+ }
+}
+
rtl::OUString SAL_CALL OResultSet::getImplementationName()
{
return rtl::OUString("com.sun.star.sdbcx.mysqlc.ResultSet");
@@ -106,6 +114,10 @@ OResultSet::OResultSet(OConnection& rConn, OCommonStatement* pStmt, MYSQL_RES* p
, m_encoding(_encoding)
{
fieldCount = mysql_num_fields(pResult);
+
+ // it works only if result set is produced via mysql_store_result
+ // TODO ensure that
+ m_nRowCount = mysql_num_rows(pResult);
}
void OResultSet::disposing()
@@ -158,6 +170,7 @@ uno::Reference<XInputStream> SAL_CALL OResultSet::getBinaryStream(sal_Int32 colu
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getBinaryStream", *this);
return nullptr;
@@ -168,6 +181,7 @@ uno::Reference<XInputStream> SAL_CALL OResultSet::getCharacterStream(sal_Int32 c
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getCharacterStream",
*this);
@@ -179,6 +193,7 @@ sal_Bool SAL_CALL OResultSet::getBoolean(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -196,6 +211,7 @@ sal_Int8 SAL_CALL OResultSet::getByte(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -229,6 +245,7 @@ Date SAL_CALL OResultSet::getDate(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
Date d; // TODO initialize
char* dateStr = m_aRow[column - 1];
@@ -268,6 +285,7 @@ double SAL_CALL OResultSet::getDouble(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -285,6 +303,7 @@ float SAL_CALL OResultSet::getFloat(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -317,7 +336,7 @@ sal_Int32 SAL_CALL OResultSet::getRow()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- return static_cast<sal_Int32>(mysql_field_tell(m_pResult));
+ return m_nRowPosition;
}
sal_Int64 SAL_CALL OResultSet::getLong(sal_Int32 column)
@@ -325,6 +344,7 @@ sal_Int64 SAL_CALL OResultSet::getLong(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -353,6 +373,7 @@ uno::Reference<XArray> SAL_CALL OResultSet::getArray(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getArray", *this);
return nullptr;
@@ -363,6 +384,7 @@ uno::Reference<XClob> SAL_CALL OResultSet::getClob(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getClob", *this);
return nullptr;
@@ -373,6 +395,7 @@ uno::Reference<XBlob> SAL_CALL OResultSet::getBlob(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getBlob", *this);
return nullptr;
@@ -383,6 +406,7 @@ uno::Reference<XRef> SAL_CALL OResultSet::getRef(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::getRef", *this);
return nullptr;
@@ -394,6 +418,7 @@ Any SAL_CALL OResultSet::getObject(sal_Int32 column,
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
Any aRet = Any();
@@ -406,6 +431,7 @@ sal_Int16 SAL_CALL OResultSet::getShort(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -422,6 +448,7 @@ rtl::OUString SAL_CALL OResultSet::getString(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -439,6 +466,7 @@ Time SAL_CALL OResultSet::getTime(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkColumnIndex(column);
+ checkRowIndex();
Time t; // initialize
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -478,6 +506,7 @@ DateTime SAL_CALL OResultSet::getTimestamp(sal_Int32 column)
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
MutexGuard aGuard(m_aMutex);
checkColumnIndex(column);
+ checkRowIndex();
char* pValue = m_aRow[column - 1];
if (!pValue)
@@ -510,7 +539,7 @@ sal_Bool SAL_CALL OResultSet::isBeforeFirst()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- return m_nCurrentField == 0;
+ return m_nRowPosition == 0;
}
sal_Bool SAL_CALL OResultSet::isAfterLast()
@@ -518,7 +547,7 @@ sal_Bool SAL_CALL OResultSet::isAfterLast()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- return m_nCurrentField >= static_cast<sal_Int32>(fieldCount);
+ return m_nRowPosition > m_nRowCount;
}
sal_Bool SAL_CALL OResultSet::isFirst()
@@ -526,7 +555,7 @@ sal_Bool SAL_CALL OResultSet::isFirst()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- return m_nCurrentField == 1 && !isAfterLast();
+ return m_nRowPosition == 1 && !isAfterLast();
}
sal_Bool SAL_CALL OResultSet::isLast()
@@ -534,7 +563,7 @@ sal_Bool SAL_CALL OResultSet::isLast()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- return mysql_field_tell(m_pResult) == fieldCount;
+ return m_nRowPosition == m_nRowCount;
}
void SAL_CALL OResultSet::beforeFirst()
@@ -542,14 +571,15 @@ void SAL_CALL OResultSet::beforeFirst()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
mysql_data_seek(m_pResult, 0);
+ m_nRowPosition = 0;
}
void SAL_CALL OResultSet::afterLast()
{
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
-
- mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::afterLast", *this);
+ mysql_data_seek(m_pResult, m_nRowCount + 1);
+ m_nRowPosition = m_nRowCount + 1;
}
void SAL_CALL OResultSet::close()
@@ -568,6 +598,7 @@ sal_Bool SAL_CALL OResultSet::first()
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
mysql_data_seek(m_pResult, 0);
+ m_nRowPosition = 0;
next();
return true;
@@ -578,7 +609,8 @@ sal_Bool SAL_CALL OResultSet::last()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- mysql_data_seek(m_pResult, fieldCount - 1);
+ mysql_data_seek(m_pResult, m_nRowCount - 1);
+ m_nRowPosition = m_nRowCount - 1;
next();
return true;
@@ -589,11 +621,10 @@ sal_Bool SAL_CALL OResultSet::absolute(sal_Int32 row)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- sal_Int32 nFields = static_cast<sal_Int32>(fieldCount);
- sal_Int32 nToGo = row < 0 ? nFields - row : row - 1;
+ sal_Int32 nToGo = row < 0 ? m_nRowCount - row : row - 1;
- if (nToGo >= nFields)
- nToGo = nFields - 1;
+ if (nToGo >= m_nRowCount)
+ nToGo = m_nRowCount - 1;
if (nToGo < 0)
nToGo = 0;
@@ -608,13 +639,12 @@ sal_Bool SAL_CALL OResultSet::relative(sal_Int32 row)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- sal_Int32 nFields = static_cast<sal_Int32>(fieldCount);
if (row == 0)
return true;
- sal_Int32 nToGo = m_nCurrentField + row;
- if (nToGo >= nFields)
- nToGo = nFields - 1;
+ sal_Int32 nToGo = m_nRowPosition + row;
+ if (nToGo >= m_nRowCount)
+ nToGo = m_nRowCount - 1;
if (nToGo < 0)
nToGo = 0;
@@ -629,10 +659,10 @@ sal_Bool SAL_CALL OResultSet::previous()
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
- if (m_nCurrentField <= 1)
+ if (m_nRowPosition <= 1)
return false;
- mysql_data_seek(m_pResult, m_nCurrentField - 2);
+ mysql_data_seek(m_pResult, m_nRowPosition - 2);
next();
return true;
}
@@ -676,12 +706,12 @@ sal_Bool SAL_CALL OResultSet::next()
m_aRow = mysql_fetch_row(m_pResult);
m_aLengths = mysql_fetch_lengths(m_pResult);
- m_nCurrentField = mysql_field_tell(m_pResult);
unsigned errorNum = mysql_errno(m_pMysql);
if (errorNum)
mysqlc_sdbc_driver::throwSQLExceptionWithMsg(mysql_error(m_pMysql), errorNum, *this,
m_encoding);
+ ++m_nRowPosition;
return m_aRow != nullptr;
}
@@ -759,6 +789,7 @@ void SAL_CALL OResultSet::updateNull(sal_Int32 column)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateNull", *this);
}
@@ -767,6 +798,7 @@ void SAL_CALL OResultSet::updateBoolean(sal_Int32 column, sal_Bool /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateBoolean", *this);
}
@@ -775,6 +807,7 @@ void SAL_CALL OResultSet::updateByte(sal_Int32 column, sal_Int8 /* x */)
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
MutexGuard aGuard(m_aMutex);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateByte", *this);
}
@@ -783,6 +816,7 @@ void SAL_CALL OResultSet::updateShort(sal_Int32 column, sal_Int16 /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateShort", *this);
}
@@ -791,6 +825,7 @@ void SAL_CALL OResultSet::updateInt(sal_Int32 column, sal_Int32 /* x */)
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
MutexGuard aGuard(m_aMutex);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateInt", *this);
}
@@ -799,6 +834,7 @@ void SAL_CALL OResultSet::updateLong(sal_Int32 column, sal_Int64 /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateLong", *this);
}
@@ -807,6 +843,7 @@ void SAL_CALL OResultSet::updateFloat(sal_Int32 column, float /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateFloat", *this);
}
@@ -815,6 +852,7 @@ void SAL_CALL OResultSet::updateDouble(sal_Int32 column, double /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateDouble", *this);
}
@@ -823,6 +861,7 @@ void SAL_CALL OResultSet::updateString(sal_Int32 column, const rtl::OUString& /*
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateString", *this);
}
@@ -831,6 +870,7 @@ void SAL_CALL OResultSet::updateBytes(sal_Int32 column, const uno::Sequence<sal_
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateBytes", *this);
}
@@ -839,6 +879,7 @@ void SAL_CALL OResultSet::updateDate(sal_Int32 column, const Date& /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateDate", *this);
}
@@ -847,6 +888,7 @@ void SAL_CALL OResultSet::updateTime(sal_Int32 column, const Time& /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateTime", *this);
}
@@ -855,6 +897,7 @@ void SAL_CALL OResultSet::updateTimestamp(sal_Int32 column, const DateTime& /* x
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateTimestamp", *this);
}
@@ -865,6 +908,7 @@ void SAL_CALL OResultSet::updateBinaryStream(sal_Int32 column,
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateBinaryStream",
*this);
}
@@ -876,6 +920,7 @@ void SAL_CALL OResultSet::updateCharacterStream(sal_Int32 column,
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateCharacterStream",
*this);
}
@@ -892,6 +937,7 @@ void SAL_CALL OResultSet::updateObject(sal_Int32 column, const Any& /* x */)
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateObject", *this);
}
@@ -901,6 +947,7 @@ void SAL_CALL OResultSet::updateNumericObject(sal_Int32 column, const Any& /* x
MutexGuard aGuard(m_aMutex);
checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
checkColumnIndex(column);
+ checkRowIndex();
mysqlc_sdbc_driver::throwFeatureNotImplementedException("OResultSet::updateNumericObject",
*this);
}
diff --git a/connectivity/source/drivers/mysqlc/mysqlc_resultset.hxx b/connectivity/source/drivers/mysqlc/mysqlc_resultset.hxx
index 9bfd8ecc1aef..7bf7912220ba 100644
--- a/connectivity/source/drivers/mysqlc/mysqlc_resultset.hxx
+++ b/connectivity/source/drivers/mysqlc/mysqlc_resultset.hxx
@@ -71,8 +71,10 @@ class OResultSet final : public OBase_Mutex,
MYSQL_RES* m_pResult;
unsigned int fieldCount;
rtl_TextEncoding m_encoding;
- sal_Int32 m_nCurrentField = 0;
bool m_bWasNull = false; // did the last getXXX result null?
+ sal_Int32 m_nRowPosition = 0;
+ sal_Int32 m_nRowCount = 0;
+
// OPropertyArrayUsageHelper
::cppu::IPropertyArrayHelper* createArrayHelper() const SAL_OVERRIDE;
// OPropertySetHelper
@@ -232,9 +234,8 @@ public:
css::uno::Sequence<sal_Int32>
SAL_CALL deleteRows(const css::uno::Sequence<Any>& rows) SAL_OVERRIDE;
- /// @throws SQLException
- /// @throws RuntimeException
void checkColumnIndex(sal_Int32 index);
+ void checkRowIndex();
private:
using ::cppu::OPropertySetHelper::getFastPropertyValue;