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#include <ctype.h>
#include <syslog.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "shvar.h"
#define DEFAULT 0
#define FACILITY "kvm"
#define SYSCONFIG_KVM "/etc/sysconfig/kvm"
#define COUNT_MSG \
"%d %s now active"
#define SUBSCRIPTION_MSG \
"%d %s now active; your Red Hat Enterprise Linux subscription" \
" limit is %d guests. Please review your Red Hat Enterprise Linux" \
" subscription agreement or contact your Red Hat" \
" support representative for more information. You" \
" may review the Red Hat Enterprise subscription" \
" limits at http://www.redhat.com/rhel-virt-limits"
int get_threshold()
{
int val = 0;
char *cval = NULL;
shvarFile *file = svNewFile(SYSCONFIG_KVM);
if (!file)
return 0;
cval = svGetValue(file, "THRESHOLD");
svCloseFile(file);
if (cval == NULL)
return 0;
val = atoi(cval);
free(cval);
return val;
}
const char *guest(int count)
{
return (count == 1 ? "guest" : "guests");
}
void emit_count_message(int count)
{
openlog(FACILITY, LOG_CONS, LOG_USER);
syslog(LOG_INFO, COUNT_MSG, count, guest(count));
closelog();
}
void emit_subscription_message(int count, int threshold)
{
openlog(FACILITY, LOG_CONS, LOG_USER);
syslog(LOG_WARNING, SUBSCRIPTION_MSG, count, guest(count), threshold);
closelog();
}
int main(int argc, char **argv)
{
int count, threshold;
if (argc < 3)
exit(1);
count = atoi(argv[1]);
threshold = get_threshold();
if (!strcmp(argv[2], "create")) {
if (threshold == 0) {
emit_count_message(count);
} else if (count > threshold) {
emit_subscription_message(count, threshold);
}
} else {
if (count >= threshold) {
emit_count_message(count);
}
}
return 0;
}
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