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Help: Calling 4GL from c code

Posted By: THANARAJ KAILASAM
Date: Tuesday, 4 April 2006, at 7:29 a.m.

i get segmentation fault while using poping character string from argument stack, i know this is with pointer conversion type

i dont know where exactly is the problem
------------------------------------------------------------------
well i am working on Redhat Linux platform

**************************C code ***************************************

#include<fglapi.h>
#include<fglsys.h>
#include<stdio.h>
#include<varchar.h>

main()
{
long cust_id,cust_age,cust_result;

char cust_name[30];

printf("Enter customer ID:");

scanf("%ld",&cust_id);

printf("Enter customer Name:");

scanf("%s", cust_name);

printf("Enter customer Age:");

scanf("%ld",&cust_age);

pushlong(cust_id);

////////////////////////////////////////////Error happens when i pop

pushvchar( cust_name , len);

/////////////////////////////////////////////

pushlong( cust_age );

fgl_call(customer_insert,3);

poplong(&cust_result);

if(cust_result == 1)

printf("Insertion into customer table successful");

else

printf("Insertion into customer table failed");

break;

default:

exit();
}

}

fgl_end();
}

********************************* 4GL *********************************

FUNCTION customer_insert(id,age,name)

DEFINE id,result,age INTEGER,

name CHAR(40)

DATABASE dbname

WHENEVER ERROR CONTINUE
INSERT INTO customer VALUES(id,age,name)
WHENEVER ERROR STOP

IF status = 0 THEN

LET result=1
ELSE

LET result=0

END IF

RETURN result
END FUNCTION

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