components/netspeeds.c
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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <limits.h>
#include "../util.h"
#if defined(__linux__)
const char *
netspeed_rx(const char *interface)
{
static int valid;
static unsigned long long rxbytes;
unsigned long oldrxbytes;
extern const unsigned int interval;
char path[PATH_MAX];
oldrxbytes = rxbytes;
snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/rx_bytes", interface);
if (pscanf(path, "%llu", &rxbytes) != 1) {
return NULL;
}
if (!valid) {
valid = 1;
return NULL;
}
return fmt_scaled((rxbytes - oldrxbytes) / interval * 1000);
}
const char *
netspeed_tx(const char *interface)
{
static int valid;
static unsigned long long txbytes;
unsigned long oldtxbytes;
extern const unsigned int interval;
char path[PATH_MAX];
oldtxbytes = txbytes;
snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/tx_bytes", interface);
if (pscanf(path, "%llu", &txbytes) != 1) {
return NULL;
}
if (!valid) {
valid = 1;
return NULL;
}
return fmt_scaled((txbytes - oldtxbytes) / interval * 1000);
}
#elif defined(__OpenBSD__)
#include <string.h>
#include <ifaddrs.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
const char *
netspeed_rx(const char *interface)
{
struct ifaddrs *ifal, *ifa;
struct if_data *ifd;
static uint64_t oldrxbytes;
uint64_t rxbytes = 0;
const char *rxs;
extern const unsigned int interval;
char if_ok = 0;
if (getifaddrs(&ifal) == -1) {
warn("getifaddrs failed");
return NULL;
}
for (ifa = ifal; ifa; ifa = ifa->ifa_next) {
if (!strcmp(ifa->ifa_name, interface) &&
(ifd = (struct if_data *)ifa->ifa_data)) {
rxbytes += ifd->ifi_ibytes, if_ok = 1;
}
}
freeifaddrs(ifal);
if (!if_ok) {
warn("reading 'if_data' failed");
return NULL;
}
rxs = oldrxbytes ? fmt_scaled((rxbytes - oldrxbytes) /
interval * 1000) : NULL;
return (oldrxbytes = rxbytes, rxs);
}
const char *
netspeed_tx(const char *interface)
{
struct ifaddrs *ifal, *ifa;
struct if_data *ifd;
static uint64_t oldtxbytes;
uint64_t txbytes = 0;
const char *txs;
extern const unsigned int interval;
char if_ok = 0;
if (getifaddrs(&ifal) == -1) {
warn("getifaddrs failed");
return NULL;
}
for (ifa = ifal; ifa; ifa = ifa->ifa_next) {
if (!strcmp(ifa->ifa_name, interface) &&
(ifd = (struct if_data *)ifa->ifa_data)) {
txbytes += ifd->ifi_obytes, if_ok = 1;
}
}
freeifaddrs(ifal);
if (!if_ok) {
warn("reading 'if_data' failed");
return NULL;
}
txs = oldtxbytes ? fmt_scaled((txbytes - oldtxbytes) /
interval * 1000) : NULL;
return (oldtxbytes = txbytes, txs);
}
#endif