commit 1a245a44f5aa793115eaaba3fc4f4024d14d97cf
Author: Markus Wichmann <[email protected]>
Date: Sun Dec 20 13:17:14 2015 +0100
Added yet another dwmstatus version, as announced on ML.
diff --git a/dwm.suckless.org/dwmstatus/dwmclock-netstat.c
b/dwm.suckless.org/dwmstatus/dwmclock-netstat.c
new file mode 100644
index 0000000..ce158ac
--- /dev/null
+++ b/dwm.suckless.org/dwmstatus/dwmclock-netstat.c
@@ -0,0 +1,140 @@
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <time.h>
+#include <locale.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <math.h>
+
+#define IFNAMSIZ 16
+
+
+static const char* determine_def_if(void) {
+ FILE *f;
+ const char* ret = 0;
+ static char buf[IFNAMSIZ];
+ char filebuf[256];
+ f = fopen("/proc/net/route", "r");
+ if (f) {
+ while (fgets(filebuf, sizeof filebuf, f)) {
+ char *tab = strchr(filebuf, ' ');
+ if (tab && !strncmp(tab + 1, "00000000", 8)) {
+ memcpy(buf, filebuf, tab - filebuf);
+ buf[tab - filebuf] = 0;
+ ret = buf;
+ break;
+ }
+ }
+ fclose(f);
+ }
+ return ret;
+}
+
+static uint64_t readfile(const char* filename) {
+ FILE* f;
+ uint64_t ret = 0, tmp;
+ f = fopen(filename, "r");
+ if (f) {
+ if (fscanf(f, "%"SCNu64, &tmp) == 1)
+ ret = tmp;
+ fclose(f);
+ }
+ return ret;
+}
+
+static uint64_t get_rx_bytes(const char* interface)
+{
+ char fnbuf[sizeof "/sys/class/net//statistics/rx_bytes" + IFNAMSIZ];
+ strcpy(fnbuf, "/sys/class/net/");
+ strcat(fnbuf, interface);
+ strcat(fnbuf, "/statistics/rx_bytes");
+ return readfile(fnbuf);
+}
+
+static uint64_t get_tx_bytes(const char* interface)
+{
+ char fnbuf[sizeof "/sys/class/net//statistics/rx_bytes" + IFNAMSIZ];
+ strcpy(fnbuf, "/sys/class/net/");
+ strcat(fnbuf, interface);
+ strcat(fnbuf, "/statistics/tx_bytes");
+ return readfile(fnbuf);
+}
+
+static int get_suff(uint64_t x)
+{
+ int r = -1 + !x;
+ while (x) {
+ r++;
+ x >>= 10;
+ }
+ return r;
+}
+
+int main(void) {
+ Display *dpy;
+ Window root;
+ int loadfd;
+
+ setlocale(LC_ALL, "");
+ dpy = XOpenDisplay(0);
+ if (dpy) {
+ struct timespec tm, s;
+ ssize_t rv;
+ char oldif[IFNAMSIZ] = {0};
+ uint64_t rxb, txb;
+ static const char suffixes[] = " KMGT"; // let's stay real here
+ root = XDefaultRootWindow(dpy);
+ clock_gettime(CLOCK_REALTIME, &tm);
+ s.tv_sec = 0;
+ s.tv_nsec = 1000000000 - tm.tv_nsec;
+ do rv = nanosleep(&s, &s);
+ while (rv == -1 && s.tv_nsec);
+ for (;;) {
+ char buf[100]; // estimate
+ const char *thisif = determine_def_if();
+ uint64_t currxb, curtxb;
+ int idx;
+ int i;
+ if (thisif)
+ {
+ if (strcmp(thisif, oldif))
+ {
+ strcpy(oldif, thisif);
+ rxb = txb = 0;
+ }
+ i = 0;
+ buf[i++] = oldif[0];
+ buf[i++] = ' ';
+ buf[i++] = 'v';
+ currxb = get_rx_bytes(oldif);
+ curtxb = get_tx_bytes(oldif);
+ idx = get_suff(currxb - rxb);
+ i += snprintf(buf + i, sizeof buf - i, "%.1f%c",
(double)(currxb - rxb) / pow(1024, idx), suffixes[idx]);
+ rxb = currxb;
+ buf[i++] = ' ';
+ buf[i++] = '^';
+ idx = get_suff(curtxb - txb);
+ i += snprintf(buf + i, sizeof buf - i, "%.1f%c",
(double)(curtxb - txb) / pow(1024, idx), suffixes[idx]);
+ txb = curtxb;
+ }
+ else
+ buf[i++] = 'n';
+ buf[i++] = ' ';
+ buf[i++] = '|';
+ buf[i++] = ' ';
+ time_t t;
+ size_t l;
+ t = time(0);
+ l = strftime(buf + i, sizeof buf - i, "%c", localtime(&t));
+ XStoreName(dpy, root, buf);
+ XSync(dpy, False);
+ sleep(1);
+ }
+ }
+}
