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search installed ODBC driver in Unix env

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This commit is contained in:
Jenny Tam 2017-09-22 12:55:38 -07:00
parent 54141c86ac
commit 695254c29b
2 changed files with 72 additions and 2 deletions
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73
source/shared/core_conn.cpp
View file

@ -150,21 +150,50 @@ sqlsrv_conn* core_sqlsrv_connect( _In_ sqlsrv_context& henv_cp, _In_ sqlsrv_cont
build_connection_string_and_set_conn_attr( conn, server, uid, pwd, options_ht, valid_conn_opts, driver, conn_str TSRMLS_CC );
bool is_missing_driver = false;
bool is_missing_driver = true;
if ( conn->is_driver_set ) {
r = core_odbc_connect( conn, conn_str, is_missing_driver, is_pooled );
}
else if ( conn->ce_option.enabled ) {
#ifndef _WIN32
if( core_search_odbc_driver( DRIVER_VERSION::ODBC_DRIVER_17 ) ) {
conn_str = conn_str + CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION::ODBC_DRIVER_17 ];
r = core_odbc_connect( conn, conn_str, is_missing_driver, is_pooled );
is_missing_driver = false;
}
else {
CHECK_CUSTOM_ERROR( is_missing_driver, conn, SQLSRV_ERROR_AE_DRIVER_NOT_INSTALLED, get_processor_arch()) {
throw core::CoreException();
}
}
#else
conn_str = conn_str + CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION::ODBC_DRIVER_17 ];
r = core_odbc_connect( conn, conn_str, is_missing_driver, is_pooled );
CHECK_CUSTOM_ERROR( is_missing_driver, conn, SQLSRV_ERROR_AE_DRIVER_NOT_INSTALLED, get_processor_arch()) {
throw core::CoreException();
}
#endif // !_WIN32
}
else {
#ifndef _WIN32
is_missing_driver = true;
for ( std::size_t i = DRIVER_VERSION::FIRST; i <= DRIVER_VERSION::LAST; ++i ) {
if (i == DRIVER_VERSION::ODBC_DRIVER_11) // skip ODBC 11 in non-Windows environment
continue;
if( core_search_odbc_driver( i ) ) {
std::string conn_str_driver = conn_str + CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION( i ) ];
r = core_odbc_connect( conn, conn_str_driver, is_missing_driver, is_pooled );
is_missing_driver = false;
break;
}
}
CHECK_CUSTOM_ERROR( is_missing_driver, conn, SQLSRV_ERROR_DRIVER_NOT_INSTALLED, get_processor_arch()) {
throw core::CoreException();
}
#else
for ( std::size_t i = DRIVER_VERSION::FIRST; i <= DRIVER_VERSION::LAST; ++i ) {
is_missing_driver = false;
std::string conn_str_driver = conn_str + CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION(i) ];
@ -176,6 +205,7 @@ sqlsrv_conn* core_sqlsrv_connect( _In_ sqlsrv_context& henv_cp, _In_ sqlsrv_cont
break;
}
} // for
#endif // !_WIN32
} // else ce_option enabled
CHECK_SQL_ERROR( r, conn ) {
@ -233,13 +263,52 @@ sqlsrv_conn* core_sqlsrv_connect( _In_ sqlsrv_context& henv_cp, _In_ sqlsrv_cont
return return_conn;
}
bool core_search_odbc_driver( _In_ std::size_t driver_version )
{
char szBuf[2001];
WORD cbBufMax = 2000;
WORD cbBufOut;
char *pszBuf = szBuf;
bool found_driver = false;
#ifndef _WIN32
// Get the names of the installed drivers
if(! SQLGetInstalledDrivers( szBuf, cbBufMax, &cbBufOut ) )
{
return false;
}
// extract the ODBC driver name
std::string driver = CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION(driver_version) ];
std::size_t pos1 = driver.find_first_of("{");
std::size_t pos2 = driver.find_first_of("}");
std::string driver_str = driver.substr( pos1 + 1, pos2 - pos1 - 1);
const char* driver_name = driver_str.c_str();
//const char* driver_str = CONNECTION_STRING_DRIVER_NAME[ DRIVER_VERSION(driver_version) ].c_str();
// Search for the ODBC driver...
do
{
if( strstr( pszBuf, driver_name ) != 0 )
{
// Found !
found_driver = true;
break;
}
pszBuf = strchr( pszBuf, '\0' ) + 1;
}
while( pszBuf[1] != '\0' );
#endif // !_WIN32
return found_driver;
}
// core_odbc_connect
// calls odbc connect API to establish the connection to server
// Parameters:
// conn - The connection structure on which we establish the connection
// conn_str - Connection string
// missing_driver_error - indicates whether odbc driver is installed on client machine
// is_missing_driver - indicates whether odbc driver is installed on client machine
// is_pooled - indicate whether it is a pooled connection
// Return - SQLRETURN status returned by SQLDriverConnect

1
source/shared/core_sqlsrv.h
View file

@ -1247,6 +1247,7 @@ void core_sqlsrv_get_client_info( _Inout_ sqlsrv_conn* conn, _Out_ zval *client_
bool core_is_conn_opt_value_escaped( _Inout_ const char* value, _Inout_ size_t value_len );
size_t core_str_zval_is_true( _Inout_ zval* str_zval );
bool core_is_authentication_option_valid( _In_z_ const char* value, _In_ size_t value_len );
bool core_search_odbc_driver( _In_ std::size_t driver_version );
//*********************************************************************************************************************************
// Statement