dotfiles

personal configuration files and scripts
git clone https://tongong.net/git/dotfiles.git
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brightness.c (947B)

      1 #include <stdio.h>
      2 #include <string.h>
      3 #include <time.h>
      4 #include <unistd.h>
      5 
      6 #include "../util.h"
      7 #include "brightness.h"
      8 
      9 #define ICON " "
     10 #define OUTPUTLEN 5
     11 
     12 size_t brightnessu(char *str, int sigval)
     13 {
     14     char output[OUTPUTLEN];
     15     char output_prefixed[OUTPUTLEN] = "000";
     16 
     17     getcmdout((char *[]){"backlight-control", "get", NULL}, output, OUTPUTLEN);
     18     /* replace newline with \0 */
     19     for (int i = 0; i < OUTPUTLEN; i++) {
     20         if (output[i] == '\n') {
     21             output[i] = '\0';
     22             break;
     23         }
     24     }
     25 
     26     /* prefix string with zeros */
     27     strcpy(output_prefixed + 3 - strlen(output), output);
     28 
     29 
     30     return SPRINTF(str, ICON "%s%%", output_prefixed);
     31 }
     32 
     33 void brightnessc(int button) {
     34     if (button == 1) {
     35         execvp("backlight-control",(char *[]){"backlight-control", "-20", NULL});
     36     }
     37 
     38     if (button == 3) {
     39         execvp("backlight-control",(char *[]){"backlight-control", "+20", NULL});
     40     }
     41 }