Implement getting current speed from network interfaces

[i3/i3status] / wmiistatus.c

diff --git a/wmiistatus.c b/wmiistatus.c
index a7f0b7ab17742b1b89fdda787991a2f57d57a6ec..e99625a8f5c87ea3c34920af88128c057a162aad 100644 (file)
--- a/wmiistatus.c
+++ b/wmiistatus.c
@@ -50,6 +50,9 @@
 #include <glob.h>
 #include <dirent.h>
 #include <getopt.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+
 
 #define _IS_WMIISTATUS_C
 #include "wmiistatus.h"
@@ -262,7 +265,7 @@ static char *get_wireless_info() {
                        else (void)snprintf(part, sizeof(part), "W: down");
 
                        } else {
-                               char *ip_address;
+                               const char *ip_address;
                                (void)snprintf(part, sizeof(part), "W: (%02d%%) ", quality);
                                ip_address = get_ip_address(wlan_interface);
                                strcpy(part+strlen(part), ip_address);
@@ -311,10 +314,34 @@ static const char *get_ip_address(const char *interface) {
 static char *get_eth_info() {
        static char part[512];
        const char *ip_address = get_ip_address(eth_interface);
+       int ethspeed = 0;
+
+       if (get_ethspeed) {
+               struct ifreq ifr;
+               struct ethtool_cmd ecmd;
+               int fd, err;
+
+               if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
+                       write_error_to_statusbar("Could not open socket");
+
+               ecmd.cmd = ETHTOOL_GSET;
+               (void)memset(&ifr, 0, sizeof(ifr));
+               ifr.ifr_data = (caddr_t)&ecmd;
+               (void)strcpy(ifr.ifr_name, eth_interface);
+               if ((err = ioctl(fd, SIOCETHTOOL, &ifr)) == 0)
+                       ethspeed = ecmd.speed;
+               else write_error_to_statusbar("Could not get interface speed. Insufficient privileges?");
+
+               (void)close(fd);
+       }
 
        if (ip_address == NULL)
                (void)snprintf(part, sizeof(part), "E: down");
-       else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
+       else {
+               if (get_ethspeed)
+                       (void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed);
+               else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
+       }
 
        return part;
 }