How to read the MAC address under HPUX 11

[TILLY]

The following code works under HPUX 10.20 and 9.0x
and produce an error: No such device on HPUX11
int main(argc,argv)
int argc;
char *argv[];
{ int fd;
struct fis fis;
if((fd=open("/dev/lan0",O_RDONLY))<0)
{ printf("Unable to open /dev/lan0 for reading [%s].\n",strerror(errno));
return(-1);
}
fis.reqtype=LOCAL_ADDRESS;
if (ioctl(fd,NETSTAT,&fis) < 0)
{ close(fd); printf("Error ioctl.\n"); return(-1); }
close(fd);
printf("0x%02x%02x",(unsigned char)fis.value.s[0], (unsigned char)fis.value.s[1]);
printf("%02x%02x",(unsigned char)fis.value.s[2], (unsigned char)fis.value.s[3]);
printf("%02x%02x",(unsigned char)fis.value.s[4], (unsigned char)fis.value.s[5]);
printf("\n");
return(0);
}

[James A. Donovan]

Take a look through chapter 8 of the HP-UX 11.00 Driver Development Guide. It covers the new DLPI implementation. You probably need to make some modifications to your code.

http://docs.hp.com/hpux/pdf/B2355-90669.pdf

[Jdamian]

I'm in agreement with Jim. The LAN device files dissapeared when DLPI was introduced.

The manual pages in section 7 about "lan" explains:

--> WARNING
--> The Link Level Access (LLA) interface is obsolete.

Those same manual pages reports a doc list. The firs doc listed is:

"DLPI Programmer's Guide", 1995, Hewlett-Packard


I hope this be useful

[Craig Gilmore · Accepted solution]

Here is a program that uses DLPI to get the Physical MAC address.

I presume you are attempting to use this for licensing. LLA was obsoleted in 9.04. You might want to check for a "Logical" MAC address rather than the physical, if the software is going to be used in a switchover environment.

Regards