Summary: Need iostat -E data from libkstat in C

Thought no one here was able to find an answer, I was able to develop these 
routines from some hints I found on a Python news group. Here is some 
sample code that gets the data I was referring to. I hope this will help 
those in the future that have this same problem.
               Don


*  Disk Error Routines
  *  print out a couple of interesting things
  */
#include <kstat.h>
#include <stdio.h>
#include <inttypes.h>
#define SLEEPTIME 10

void my_named_display(char *, char *, kstat_named_t *);
void disp_disk_err(kstat_ctl_t *,kstat_t *);

main(int argc, char **argv)
{
      kstat_ctl_t   *kc;
      kstat_t       *ksp;


      kc = kstat_open();
      for (ksp = kc->kc_chain; ksp != NULL; ksp = ksp->ks_next) {
         if (ksp->ks_type == KSTAT_TYPE_NAMED) {
             if (!strncmp(ksp->ks_module,"sderr",5))
                 disp_disk_err(kc, ksp);
         }
      }
}
void disp_disk_err(kstat_ctl_t *kc,kstat_t *ksp) {
      kstat_named_t *knp;

      kstat_read(kc, ksp, NULL);
      printf("The data is for: %s\n ", ksp->ks_name);
      knp = kstat_data_lookup(ksp, "Vendor");
      printf("The Vendor is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Product");
      printf("The Product is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Revision");
      printf("The Revision is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Serial No");
      printf("The Device Serial Number is:");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Device Not Ready");
      printf("The Device Not Ready count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Hard Errors");
      printf("The Hard Error Count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Illegal Request");
      printf("The Illegal Request count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Media Error");
      printf("The Media Error count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "No Device");
      printf("The No Device count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Transport Errors");
      printf("The Transport Error count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Predictive Failure Analysis");
      printf("The Predictive Failure Analysis is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");
      knp = kstat_data_lookup(ksp, "Recoverable");
      printf("The Recoverable Error count is: ");
      my_named_display(ksp->ks_name, ksp->ks_class, knp);
      printf("\n");

      /* dump some info about all I/O kstats every
         SLEEPTIME seconds  */
}

void
my_named_display(char *devname, char *class, kstat_named_t *knp)
{
      switch(knp->data_type) {
      case KSTAT_DATA_CHAR:
           printf("%.16s",knp->value.c);
           break;
      case KSTAT_DATA_INT32:
           printf("%" PRId32,knp->value.i32);
           break;
      case KSTAT_DATA_UINT32:
           printf("%" PRIu32,knp->value.ui32);
           break;
      case KSTAT_DATA_INT64:
           printf("%" PRId64,knp->value.i64);
           break;
      case KSTAT_DATA_UINT64:
           printf("%" PRIu64,knp->value.ui64);
     }
}


Don Weeks
Sr Systems Administrator
Spatial Wireless, Inc
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