a double overflow may cause wrong value

[scotti]

when using zabbix_get to get system.cpu.intr from linux, there always get a wrong value like "4294967295", this's because the data type for the "value" in SYSTEM_CPU_INTR(src/libs/zbxsysinfo/linux/cpu.c) is "double" which has a limit of 4 bytes only( 4294967296 in maximum ); this can be fixed in the following ways:

int SYSTEM_CPU_INTR(const char *cmd, const char *param, unsigned flags, AGENT_RESULT *result)
{
int ret = SYSINFO_RET_FAIL;
char line[MAX_STRING_LEN];

char name[MAX_STRING_LEN];
unsigned long long value = 0;

FILE *f;

assert(result);

init_result(result);

f=fopen("/proc/stat","r");
if(f)
{
while(fgets(line,MAX_STRING_LEN,f) != NULL)
{
if(sscanf(line,"%s\t%lld\n", name, &value) != 2)