topic GetEvent Issues in Operating System - HP-UX

GetEvent Issues

Stephen Hoare — Wed, 27 Nov 2002 11:46:19 GMT

Hi,

I'm having a issue where calling GetEvent (audit.h)causes a segmentation fault. I think this is due to my incorrect use of the function however the man page is a little unclear. Does anyone have experience of this function and can provide either alternative documentation or code samples.

I'm running on HPUX 11.00 and compiling C++ with GCC 3.2

Re: GetEvent Issues

Jerome Baron — Wed, 27 Nov 2002 13:48:52 GMT

Hi,

Can you give us your getevent utilisation ? And which signal does the program received ?
Are you super user when you're using this system call ?

Regards,
Jerome

Re: GetEvent Issues

Stephen Hoare — Wed, 27 Nov 2002 13:54:03 GMT

The program causing a seg fault, which I think is due to stack or memory issues after the call to getEvent. After looking at the problem today I think this is an issue with MAX_SYSCALL.

code snippet

struct aud_event_tbl ev;
struct aud_type sc[MAX_SYSCALL];

getevent(sc, &ev)

the size of MAX_SYSCALL seems to change in different versions of audit.h

Re: GetEvent Issues

Jerome Baron — Wed, 27 Nov 2002 13:59:32 GMT

On my system MAX_SYSCALL is set to 512 :
/usr/include/sys/audit.h:#define MAX_SYSCALL 512 /* Max sys call # + 1 */

Regards,
Jerome