Guardian Procedure Calls Reference Manual

Example
The following example calls GETSYSTEMSERIALNUMBER and displays the result:
main()
{
#define MAX_ID_LEN 60
char idbuf[MAX_ID_LEN];
short error;
short idlen;
if (error = GETSYSTEMSERIALNUMBER(idbuf, MAX_ID_LEN,
&idlen))
printf("GETSYSTEMSERIALNUMBER error %d\n",
error);
else {
idbuf[idlen] = '\0';
printf("System serial number is %s\n", idbuf);
}
}
GETSYSTEMSERIALNUMBER Procedure 675