components/pamixer_vol_perc.c


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#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include "../util.h"

#define VOL_BUF_SIZE 4

const char *
pamixer_vol_perc(void)
{
  bool MUTED = false;
  char vol_buf[VOL_BUF_SIZE];
  char mute, ch;
  unsigned short i = 0;

  FILE *mute_fp = popen("pamixer --get-mute | head -c1", "r");
  FILE *vol_fp  = popen("pamixer --get-volume | head -c3", "r");

  mute = fgetc(mute_fp);
  pclose (mute_fp);

  ch = fgetc(vol_fp);
  while (ch != '\n' && ch != EOF && i < VOL_BUF_SIZE) {
    vol_buf[i++] = ch;
    ch = fgetc(vol_fp);
  }
  vol_buf[i] = '\0';

  pclose (vol_fp);

  if (mute == 't') {
    return bprintf("󰝟");
  }
  else {
    return bprintf("%s%%", vol_buf);
  }
}