Question about inet_ntoa in ia64 Linux system

[Gewj]

Hi,

I'm working on a ia64 linux,(kernel 2.4.18,gcc3-3.0.4-1)system.
A multithread process run the following code.


char    	szIP[512];
struct	in_addr  *ptr;
...

ptr =  (struct in_addr*)*(phostent->h_addr_list); //phostent is not null
strcpy( szIP, inet_ntoa( *ptr ) );

now we found out that the process may core dump in
 "strcpy( szIP, inet_ntoa( *ptr ) );"

the question is : on ia64 system , Will inet_ntoa function return a NULL
result ? may it be a multi-thread problem?

Thank you for any help.

Regards
--
Ivod.