Getting core dump when using EXEC SQL CLOSE

Question

In my pro*c program , i have used a cursor to fetch the set of accounts.Once cursor is opened , code will perform set
of operation using fetched data and then cursor is closed. Between open and closing of cursor , i have used 23 EXEC
SQL CLOSE. For example i am copying the value of a to b using strlcpy between fetch and close cursor statement.If
returned value from strlcpy is greater than size of destination variable, then flow should not proceed , in that case I will
close the cursor using EXEC SQL CLOSE and return the flow to calling program. Similarly i have closed the cursor at
another 22 locations.
When i compile the code and run binary the core dump occurs. On analyzing the core it shows
t@null (l@8) terminated by signal SEGV (no mapping at the fault address)
0xffffffffffffffff: <bad address 0xffffffffffffffff>
dbx: core file read error: address 0xfc4ffe48 not in data space
Current function is dbMtBaseClass::Pswd_Change
7860 sqlcxt(&_dbMtCtx, &sqlctx, &sqlstm, &sqlfpn);
if I remove any of the three EXEC SQL CLOSE commands , core dump does not occurs.
It looks strange.Please help me to resolve the issue.

Answer 1

In my pro*c program , i have used a cursor to fetch the set of accounts.Once cursor is opened , code will perform set
of operation using fetched data and then cursor is closed. Between open and closing of cursor , i have used 23 EXEC
SQL CLOSE. For example i am copying the value of a to b using strlcpy between fetch and close cursor statement.If
returned value from strlcpy is greater than size of destination variable, then flow should not proceed , in that case I will
close the cursor using EXEC SQL CLOSE and return the flow to calling program. Similarly i have closed the cursor at
another 22 locations.
When i compile the code and run binary the core dump occurs. On analyzing the core it shows
t@null (l@8) terminated by signal SEGV (no mapping at the fault address)
0xffffffffffffffff: <bad address 0xffffffffffffffff>
dbx: core file read error: address 0xfc4ffe48 not in data space
Current function is dbMtBaseClass::Pswd_Change
7860 sqlcxt(&_dbMtCtx, &sqlctx, &sqlstm, &sqlfpn);
if I remove any of the three EXEC SQL CLOSE commands , core dump does not occurs.
It looks strange.Please help me to resolve the issue.