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raymontag/grayfox-dwmstatus.c

Created June 13, 2014 14:03
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  1. raymontag created this gist Jun 13, 2014.
    140 changes: 140 additions & 0 deletions grayfox-dwmstatus.c
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,140 @@
    /* made by grayfox, inspired by profil-dwmstatus
    **
    ** Compile with:
    ** gcc -Wall -pedantic -std=c99 -lX11 status.c
    */
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    #include <unistd.h>
    #include <time.h>
    #include <X11/Xlib.h>
    static Display *dpy;
    void setstatus(char *str) {
    XStoreName(dpy, DefaultRootWindow(dpy), str);
    XSync(dpy, False);
    }
    //float getfreq(char *file) {
    // FILE *fd;
    // char *freq;
    // float ret;
    //
    // freq = malloc(10);
    // fd = fopen(file, "r");
    // if(fd == NULL) {
    // fprintf(stderr, "Cannot open '%s' for reading.\n", file);
    // exit(1);
    // }
    //
    // fgets(freq, 10, fd);
    // fclose(fd);
    //
    // ret = atof(freq)/1000000;
    // free(freq);
    // return ret;
    //}
    void getnetstatus(char buf[18]) {
    FILE *fd;
    char tmp[5];

    fd = fopen("/sys/class/net/wlp2s0/operstate", "r");
    if(fd == NULL) {
    fprintf(stderr, "Cannot open /sys/class/net/wlp2s0/operstate.\n");
    exit(1);
    }
    fscanf(fd, "%4s", tmp);
    strcpy(buf, "W: ");
    strncat(buf, tmp, 4);

    fclose(fd);
    fopen("/sys/class/net/enp3s0/operstate", "r");
    if(fd == NULL) {
    fprintf(stderr, "Cannot open /sys/class/net/enp3s0/operstate.\n");
    exit(1);
    }
    fscanf(fd, "%4s", tmp);
    strcat(buf, " | E: ");
    strncat(buf, tmp, 4);

    fclose(fd);
    }

    char *getdatetime() {
    char *buf;
    time_t result;
    struct tm *resulttm;
    if((buf = malloc(sizeof(char)*65)) == NULL) {
    fprintf(stderr, "Cannot allocate memory for buf.\n");
    exit(1);
    }
    result = time(NULL);
    resulttm = localtime(&result);
    if(resulttm == NULL) {
    fprintf(stderr, "Error getting localtime.\n");
    exit(1);
    }
    if(!strftime(buf, sizeof(char)*65-1, "%a %b %d %H:%M:%S", resulttm)) {
    fprintf(stderr, "strftime is 0.\n");
    exit(1);
    }

    return buf;
    }

    int getbattery() {
    FILE *fd;
    int energy_now, energy_full, voltage_now;
    fd = fopen("/sys/class/power_supply/BAT1/charge_now", "r");
    if(fd == NULL) {
    fprintf(stderr, "Error opening charge_now.\n");
    return -1;
    }
    fscanf(fd, "%d", &energy_now);
    fclose(fd);
    fd = fopen("/sys/class/power_supply/BAT1/charge_full", "r");
    if(fd == NULL) {
    fprintf(stderr, "Error opening charge_full.\n");
    return -1;
    }
    fscanf(fd, "%d", &energy_full);
    fclose(fd);
    fd = fopen("/sys/class/power_supply/BAT1/voltage_now", "r");
    if(fd == NULL) {
    fprintf(stderr, "Error opening voltage_now.\n");
    return -1;
    }
    fscanf(fd, "%d", &voltage_now);
    fclose(fd);
    return ((float)energy_now * 1000 / (float)voltage_now) * 100 / ((float)energy_full * 1000 / (float)voltage_now);
    }

    int main(void) {
    char *status;
    //float cpu0, cpu1, cpu2, cpu3;
    char *datetime;
    char net[18];
    int bat1;
    if (!(dpy = XOpenDisplay(NULL))) {
    fprintf(stderr, "Cannot open display.\n");
    return 1;
    }
    if((status = malloc(200)) == NULL)
    exit(1);

    for (;;sleep(1)) {
    //cpu0 = getfreq("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
    //cpu1 = getfreq("/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq");
    //cpu2 = getfreq("/sys/devices/system/cpu/cpu2/cpufreq/scaling_cur_freq");
    //cpu3 = getfreq("/sys/devices/system/cpu/cpu3/cpufreq/scaling_cur_freq");
    datetime = getdatetime();
    bat1 = getbattery();
    getnetstatus(net);
    //snprintf(status, 200, "%0.2f, %0.2f, %0.2f, %0.2f | %d%% | %s", cpu0, cpu1, cpu2, cpu3, bat1, datetime);
    snprintf(status, 200, "%s | %d%% | %s", net, bat1, datetime);
    free(datetime);
    setstatus(status);
    }
    free(status);
    XCloseDisplay(dpy);
    return 0;
    }