--- parser3/src/sql/mysql/Attic/parser3mysql.C	2001/04/05 11:01:59	1.7
+++ parser3/src/sql/mysql/Attic/parser3mysql.C	2001/04/07 14:23:35	1.12
@@ -5,16 +5,24 @@
 
 	Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)
 
-	$Id: parser3mysql.C,v 1.7 2001/04/05 11:01:59 paf Exp $
+	$Id: parser3mysql.C,v 1.12 2001/04/07 14:23:35 paf Exp $
 */
 
 #include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
 
 #include "pa_sql_driver.h"
 #include "mysql.h"
-#include "pa_common.h" //
 
-char *lsplit(char *string, char delim) {
+#define MAX_STRING 0x400
+#define MAX_NUMBER 20
+
+#if _MSC_VER
+#	define snprintf _snprintf
+#endif
+
+static char *lsplit(char *string, char delim) {
     if(string) {
 		char *v=strchr(string, delim);
 		if(v) {
@@ -28,10 +36,9 @@ char *lsplit(char *string, char delim) {
 /**
 	MySQL server driver
 	
-	@todo 
-		figure out about memory for errors:
-		- static=add multithread locks
-		- dynamic=who should free it up?
+	@todo figure out about memory for errors:
+		static=add multithread locks;
+		dynamic=who should free it up?
 */
 class MySQL_Driver : public SQL_Driver {
 public:
@@ -43,7 +50,9 @@ public:
 	int api_version() { return SQL_DRIVER_API_VERSION; }
 	/// connect
 	void connect(
-		char *url, ///< @b user:pass@host[:port]/database
+		char *url, /**< @b user:pass@host[:port]/database/charset 
+				   3.23.22b
+				   Currently the only option for character_set_name is cp1251_koi8 */
 		void **connection ///< output: MYSQL *
 		) {
 		char *user=url;
@@ -53,11 +62,22 @@ public:
 		char *error_pos=0;
 		char *port_cstr=lsplit(host, ':');
 		int port=port_cstr?strtol(port_cstr, &error_pos, 0):0;
+		char *charset=lsplit(db, '/');
 
 	    MYSQL *mysql=mysql_init(NULL);
 		if(!mysql_real_connect(mysql, 
 			host, user, pwd, db, port?port:MYSQL_PORT, NULL, 0))
-			fservices->_throw(mysql_error(mysql));
+			services->_throw(mysql_error(mysql));
+
+		if(charset) { 
+			// set charset
+			char statement[MAX_STRING]="set CHARACTER SET "; // cp1251_koi8
+			strncat(statement, charset, MAX_STRING);
+			
+			if(mysql_query(mysql, statement)) 
+				services->_throw(mysql_error(mysql));
+			mysql_store_result(mysql); // throw out the result [don't need but must call]
+		}
 
 		*(MYSQL **)connection=mysql;
 	}
@@ -67,18 +87,50 @@ public:
 	void commit(void *connection) {}
 	void rollback(void *connection) {}
 
+	bool ping(void *connection) {
+		return mysql_ping((MYSQL *)connection)==0;
+	}
+
+	unsigned int quote(void *connection,
+		char *to, const char *from, unsigned int length) {
+		/*
+			3.23.22b
+			You must allocate the to buffer to be at least length*2+1 bytes long. 
+			(In the worse case, each character may need to be encoded as using two bytes, 
+			and you need room for the terminating null byte.)
+
+			it's already UNTAINT_TIMES_BIGGER
+		*/
+		return mysql_escape_string(to, from, length);
+	}
 	void query(void *connection, 
-		const char *statement, 
+		const char *astatement, unsigned long offset, unsigned long limit,
 		unsigned int *column_count, Cell **columns, 
 		unsigned long *row_count, Cell ***rows) {
 
 		MYSQL *mysql=(MYSQL *)connection;
 		MYSQL_RES *res=NULL;
-		
+
+		const char *statement;
+		if(offset || limit) {
+			size_t statement_size=strlen(astatement);
+			char *statement_limited=(char *)services->malloc(
+				statement_size+MAX_NUMBER*2+8/* limit #,#*/+1);
+			char *cur=statement_limited;
+			memcpy(cur, astatement, statement_size); cur+=statement_size;
+			cur+=sprintf(cur, " limit ");
+			if(offset)
+				cur+=snprintf(cur, MAX_NUMBER+1, "%lu,", offset);
+			if(limit)
+				cur+=snprintf(cur, MAX_NUMBER, "%lu", limit);
+			statement=statement_limited;
+		} else
+			statement=astatement;
+
 		if(mysql_query(mysql, statement)) 
-			fservices->_throw(mysql_error(mysql));
+			services->_throw(mysql_error(mysql));
 		if(!(res=mysql_store_result(mysql)) && mysql_field_count(mysql)) 
-			fservices->_throw(mysql_error(mysql));
+			services->_throw(mysql_error(mysql));
 		if(!res) {
 			// empty result
 			*row_count=0;
@@ -87,16 +139,16 @@ public:
 		}
 		
 		*column_count=mysql_num_fields(res);
-		*columns=(Cell *)fservices->malloc(sizeof(Cell)*(*column_count));
+		*columns=(Cell *)services->malloc(sizeof(Cell)*(*column_count));
 
 		*row_count=(unsigned long)mysql_num_rows(res);
-		*rows=(Cell **)fservices->malloc(sizeof(Cell *)*(*row_count));
+		*rows=(Cell **)services->malloc(sizeof(Cell *)*(*row_count));
 		
 		for(unsigned int i=0; i<(*column_count); i++){
 			MYSQL_FIELD *field=mysql_fetch_field(res);
 			size_t size=strlen(field->name);
 			(*columns)[i].size=size;
-			(*columns)[i].ptr=fservices->malloc(size);
+			(*columns)[i].ptr=services->malloc(size);
 			memcpy((*columns)[i].ptr, field->name, size);
 		}
 		
@@ -108,7 +160,7 @@ public:
 				for(unsigned int i=0; i<(*column_count); i++){
 					size_t size=(size_t)lengths[i];
 					row[i].size=size;
-					row[i].ptr=fservices->malloc(size);
+					row[i].ptr=services->malloc(size);
 					memcpy(row[i].ptr, mysql_row[i], size);
 				}
 		}