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__) #include <stdint.h> const char * netspeed_rx(const char *interface) { uint64_t oldrxbytes; static uint64_t rxbytes = 0; 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; } return oldrxbytes ? fmt_scaled((rxbytes - oldrxbytes) / interval * 1000) : NULL; } const char * netspeed_tx(const char *interface) { uint64_t oldtxbytes; static uint64_t txbytes = 0; 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; } return oldtxbytes ? fmt_scaled((txbytes - oldtxbytes) / interval * 1000) : NULL; } #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 = 0; 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; } return oldrxbytes ? fmt_scaled((rxbytes - oldrxbytes) / interval * 1000) : NULL; } const char * netspeed_tx(const char *interface) { struct ifaddrs *ifal, *ifa; struct if_data *ifd; uint64_t oldtxbytes; static uint64_t txbytes = 0; 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; } return oldtxbytes ? fmt_scaled((txbytes - oldtxbytes) / interval * 1000) : NULL; } #endif