Fixing various compiler warnings

lib/MySQL_HostGroups_Manager.cpp

@@ -4533,7 +4533,7 @@ class MySQL_Errors_stats {
 		sprintf(buf,"%d",err_no);
 		pta[6]=strdup(buf);
 
-		sprintf(buf,"%u",count_star);
+		sprintf(buf,"%llu",count_star);
 		pta[7]=strdup(buf);
 
 		time_t __now;

lib/MySQL_Session.cpp

@@ -588,29 +588,30 @@ bool MySQL_Session::handler_CommitRollback(PtrSize_t *pkt) {
 // FIXME: This function is currently disabled . See #469
 bool MySQL_Session::handler_SetAutocommit(PtrSize_t *pkt) {
 	size_t sal=strlen("set autocommit");
+	char *ptr = (char *)pkt->ptr;
 	if ( pkt->size >= 7+sal) {
 		if (strncasecmp((char *)"SET @@session.autocommit",(char *)pkt->ptr+5,strlen((char *)"SET @@session.autocommit"))==0) {
-			memmove(pkt->ptr+9, pkt->ptr+19, pkt->size - 19);
-			memset(pkt->ptr+pkt->size-10,' ',10);
+			memmove(ptr+9, ptr+19, pkt->size - 19);
+			memset(ptr + pkt->size-10,' ',10);
 		}
 		if (strncasecmp((char *)"set autocommit",(char *)pkt->ptr+5,sal)==0) {
 			void *p = NULL;
-			for (int i=5+sal; i<pkt->size; i++) {
+			for (int i=5+sal; i < (int)pkt->size; i++) {
 				*((char *)pkt->ptr+i) = tolower(*((char *)pkt->ptr+i));
 			}
-			p = memmem(pkt->ptr+5+sal, pkt->size-5-sal, (void *)"false", 5);
+			p = memmem(ptr+5+sal, pkt->size-5-sal, (void *)"false", 5);
 			if (p) {
 				memcpy(p,(void *)"0    ",5);
 			}
-			p = memmem(pkt->ptr+5+sal, pkt->size-5-sal, (void *)"true", 4);
+			p = memmem(ptr+5+sal, pkt->size-5-sal, (void *)"true", 4);
 			if (p) {
 				memcpy(p,(void *)"1   ",4);
 			}
-			p = memmem(pkt->ptr+5+sal, pkt->size-5-sal, (void *)"off", 3);
+			p = memmem(ptr+5+sal, pkt->size-5-sal, (void *)"off", 3);
 			if (p) {
 				memcpy(p,(void *)"0  ",3);
 			}
-			p = memmem(pkt->ptr+5+sal, pkt->size-5-sal, (void *)"on", 2);
+			p = memmem(ptr+5+sal, pkt->size-5-sal, (void *)"on", 2);
 			if (p) {
 				memcpy(p,(void *)"1 ",2);
 			}