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- /* See LICENSE file for copyright and license details. */
- #include <stdio.h>
- #include <limits.h>
-
- #include "../util.h"
-
- #if defined(__linux__)
- #include <stdint.h>
-
- const char *
- netspeed_rx(const char *interface)
- {
- uint64_t oldrxbytes;
- static uint64_t rxbytes;
- extern const unsigned int interval;
- char path[PATH_MAX];
-
- oldrxbytes = rxbytes;
-
- if (esnprintf(path, sizeof(path),
- "/sys/class/net/%s/statistics/rx_bytes",
- interface) < 0) {
- return NULL;
- }
- if (pscanf(path, "%llu", &rxbytes) != 1) {
- return NULL;
- }
- if (oldrxbytes == 0) {
- return NULL;
- }
-
- return fmt_human_2((rxbytes - oldrxbytes) *
- 1000 / interval, "B/s");
- }
-
- const char *
- netspeed_tx(const char *interface)
- {
- uint64_t oldtxbytes;
- static uint64_t txbytes;
- extern const unsigned int interval;
- char path[PATH_MAX];
-
- oldtxbytes = txbytes;
-
- if (esnprintf(path, sizeof(path),
- "/sys/class/net/%s/statistics/tx_bytes",
- interface) < 0) {
- return NULL;
- }
- if (pscanf(path, "%llu", &txbytes) != 1) {
- return NULL;
- }
- if (oldtxbytes == 0) {
- return NULL;
- }
-
- return fmt_human_2((txbytes - oldtxbytes) *
- 1000 / interval, "B/s");
- }
- #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;
- uint64_t oldrxbytes;
- static uint64_t rxbytes;
- extern const unsigned int interval;
- int if_ok = 0;
-
- oldrxbytes = rxbytes;
-
- if (getifaddrs(&ifal) == -1) {
- warn("getifaddrs failed");
- return NULL;
- }
- rxbytes = 0;
- 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;
- }
- if (oldrxbytes == 0) {
- return NULL;
- }
-
- return fmt_human_2((rxbytes - oldrxbytes) *
- 1000 / interval, "B/s");
- }
-
- const char *
- netspeed_tx(const char *interface)
- {
- struct ifaddrs *ifal, *ifa;
- struct if_data *ifd;
- uint64_t oldtxbytes;
- static uint64_t txbytes;
- extern const unsigned int interval;
- int if_ok = 0;
-
- oldtxbytes = txbytes;
-
- if (getifaddrs(&ifal) == -1) {
- warn("getifaddrs failed");
- return NULL;
- }
- txbytes = 0;
- 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;
- }
- if (oldtxbytes == 0) {
- return NULL;
- }
-
- return fmt_human_2((txbytes - oldtxbytes) *
- 1000 / interval, "B/s");
- }
- #endif
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