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/*
* getdata22.c -- implementations of kernel 2.2 specific data retrieval functions
*
* software distributed under the GPL, for license terms see the file
* COPYING in this directory
*
* (c) 2005 Dr. Andreas Mueller, Beratung und Entwicklung
* $Id: getdata22.c,v 1.2 2005/09/19 07:20:33 afm Exp $
*/
#include "getdata22.h"
#include <syslog.h>
#include <stdio.h>
#include <stdlib.h>
/*
The 2.2 kernel has disk activity as in four numbers found in /etc/stat
on the line beginning with 'disk '.
*/
void get_disk22(struct statsusers *stats) {
FILE *stat;
char buffer[1024];
/* open the /proc/partitions file */
stat = fopen("/proc/stat", "r");
if (NULL == stat) {
return;
}
/* use the common function to read diskstat data */
while (buffer == fgets(buffer, sizeof(buffer), stat)) {
if (0 == strncmp(buffer, "disk ", 5)) {
if (sscanf(buffer, "disk %u %u %u %u\n",
&stats->dk_xfer[0],
&stats->dk_xfer[1],
&stats->dk_xfer[2],
&stats->dk_xfer[3]) != 4) {
syslog(LOG_CRIT, "/proc/stat has wrong format "
"on disk line: %s", buffer);
exit(EXIT_FAILURE);
}
break; /* exit the loop */
}
}
/* close the file */
fclose(stat);
}
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