use the newer signed defs for type mapping

The sign-explicit defs have been added to replace the implicitly signed
ones.

Author: bpintea

driver/defs.h

@@ -304,9 +304,9 @@
 /* -6: SQL_TINYINT -> SQL_C_TINYINT */
 #define ESODBC_ES_TO_CSQL_BYTE			SQL_C_TINYINT
 /* 5: SQL_SMALLINT -> SQL_C_SHORT */
-#define ESODBC_ES_TO_CSQL_SHORT			SQL_C_SHORT
+#define ESODBC_ES_TO_CSQL_SHORT			SQL_C_SSHORT
 /* 4: SQL_INTEGER -> SQL_C_LONG */
-#define ESODBC_ES_TO_CSQL_INTEGER		SQL_C_LONG
+#define ESODBC_ES_TO_CSQL_INTEGER		SQL_C_SLONG
 /* -5: SQL_BIGINT -> SQL_C_SBIGINT */
 #define ESODBC_ES_TO_CSQL_LONG			SQL_C_SBIGINT
 /* 6: SQL_FLOAT -> SQL_C_DOUBLE */
@@ -318,7 +318,7 @@
 /* 8: SQL_DOUBLE -> SQL_C_FLOAT */
 #define ESODBC_ES_TO_CSQL_DOUBLE		SQL_C_DOUBLE
 /* 16: ??? -> SQL_C_TINYINT */
-#define ESODBC_ES_TO_CSQL_BOOLEAN		SQL_C_TINYINT
+#define ESODBC_ES_TO_CSQL_BOOLEAN		SQL_C_STINYINT
 /* 12: SQL_VARCHAR -> SQL_C_WCHAR */
 #define ESODBC_ES_TO_CSQL_KEYWORD		SQL_C_WCHAR
 /* 12: SQL_VARCHAR -> SQL_C_WCHAR */
@@ -328,7 +328,7 @@
 /* -3: SQL_VARBINARY -> SQL_C_BINARY */
 #define ESODBC_ES_TO_CSQL_BINARY		SQL_C_BINARY
 /* 0: SQL_TYPE_NULL -> SQL_C_TINYINT */
-#define ESODBC_ES_TO_CSQL_NULL			SQL_C_TINYINT
+#define ESODBC_ES_TO_CSQL_NULL			SQL_C_STINYINT
 /* 1111: ??? -> SQL_C_BINARY */
 #define ESODBC_ES_TO_CSQL_UNSUPPORTED	SQL_C_BINARY
 /* 2002: ??? -> SQL_C_BINARY */

driver/queries.c

@@ -789,24 +789,28 @@ static SQLRETURN copy_longlong(esodbc_rec_st *arec, esodbc_rec_st *irec,
 					irec->meta_type);
 			break;
 
+		case SQL_C_TINYINT:
 		case SQL_C_STINYINT:
 			*(SQLSCHAR *)data_ptr = (SQLSCHAR)ll;
 			write_copied_octets(octet_len_ptr, sizeof(SQLSCHAR),
 					stmt->max_length, irec->meta_type);
 			break;
 
+		case SQL_C_SHORT:
 		case SQL_C_SSHORT:
 			*(SQLSMALLINT *)data_ptr = (SQLSMALLINT)ll;
 			write_copied_octets(octet_len_ptr, sizeof(SQLSMALLINT),
 					stmt->max_length, irec->meta_type);
 			break;
 
+		case SQL_C_LONG:
 		case SQL_C_SLONG:
 			*(SQLINTEGER *)data_ptr = (SQLINTEGER)ll;
 			write_copied_octets(octet_len_ptr, sizeof(SQLINTEGER),
 					stmt->max_length, irec->meta_type);
 			break;
 
+		case SQL_C_BIGINT:
 		case SQL_C_SBIGINT:
 			*(SQLBIGINT *)data_ptr = (SQLBIGINT)ll;
 			write_copied_octets(octet_len_ptr, sizeof(SQLBIGINT),