batt.c - spoon - set dwm status
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       ---
       batt.c (1697B)
       ---
            1 #include <err.h>
            2 #include <stdio.h>
            3 
            4 #include "types.h"
            5 #include "util.h"
            6 
            7 char *crit[] = {
            8         "[!!!!]=",
            9         "       ",
           10 };
           11 
           12 void
           13 battprint(char *buf, size_t len, int acon, int life)
           14 {
           15         char c;
           16         static int frame = 0;
           17 
           18         c = acon ? '>' : '<';
           19         if (!acon && life <= 5)
           20                 snprintf(buf, len, "%s", crit[frame++ % LEN(crit)]);
           21         else if (life >= 80)
           22                 snprintf(buf, len, "[////]=");
           23         else if (life >= 60)
           24                 snprintf(buf, len, "[///%c]=", c);
           25         else if (life >= 40)
           26                 snprintf(buf, len, "[//%c%c]=", c, c);
           27         else if (life >= 20)
           28                 snprintf(buf, len, "[/%c%c%c]=", c, c, c);
           29         else
           30                 snprintf(buf, len, "[%c%c%c%c]=", c, c, c, c);
           31 }
           32 
           33 #ifdef __OpenBSD__
           34 #include <sys/ioctl.h>
           35 
           36 #include <fcntl.h>
           37 #include <unistd.h>
           38 
           39 #include <machine/apmvar.h>
           40 
           41 int
           42 battread(void *arg, char *buf, size_t len)
           43 {
           44         struct apm_power_info info;
           45         int ret, fd;
           46 
           47         fd = open("/dev/apm", O_RDONLY);
           48         if (fd < 0) {
           49                 warn("open %s", "/dev/apm");
           50                 return -1;
           51         }
           52         ret = ioctl(fd, APM_IOC_GETPOWER, &info);
           53         if (ret < 0) {
           54                 warn("APM_IOC_GETPOWER %s", "/dev/apm");
           55                 close(fd);
           56                 return -1;
           57         }
           58         close(fd);
           59 
           60         if (info.battery_state == APM_BATTERY_ABSENT)
           61                 snprintf(buf, len, "[no batt]");
           62         else
           63                 battprint(buf, len, info.ac_state == APM_AC_ON, info.battery_life);
           64         return 0;
           65 }
           66 #elif __linux__
           67 int
           68 battread(void *arg, char *buf, size_t len)
           69 {
           70         FILE *fp;
           71         int acon;
           72         int life;
           73         struct battarg *battarg = arg;
           74 
           75         fp = fopen(battarg->cap, "r");
           76         if (fp == NULL) {
           77                 warn("fopen %s", battarg->cap);
           78                 return -1;
           79         }
           80         fscanf(fp, "%d", &life);
           81         fclose(fp);
           82         fp = fopen(battarg->ac, "r");
           83         if (fp == NULL) {
           84                 warn("fopen %s", battarg->ac);
           85                 return -1;
           86         }
           87         fscanf(fp, "%d", &acon);
           88         fclose(fp);
           89         battprint(buf, len, acon, life);
           90         return 0;
           91 }
           92 #endif