battery_perc: Port to OpenBSD

diff --git a/components/battery.c b/components/battery.c
index 04dfa47da28b1cb27ead47f7b8b37c5b45b8cfa5..327d5765c66991408f2e668e05934894a22702ed 100644 (file)
--- a/components/battery.c
+++ b/components/battery.c
@@ -88,4 +88,41 @@
 
                return bprintf("%d", apm_info.battery_life);
        }
+
+       const char *
+       battery_state(const char *bat)
+       {
+               int fd;
+               size_t i;
+               struct apm_power_info apm_info;
+               struct {
+                       unsigned int state;
+                       char *symbol;
+               } map[] = {
+                       { APM_AC_ON,      "+" },
+                       { APM_AC_OFF,     "-" },
+                       { APM_AC_UNKNOWN, "/" },
+               };
+
+               fd = open("/dev/apm", O_RDONLY);
+               if (fd < 0) {
+                       fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno));
+                       return NULL;
+               }
+
+               if (ioctl(fd, APM_IOC_GETPOWER, &apm_info) < 0) {
+                       fprintf(stderr, "ioctl 'APM_IOC_GETPOWER': %s\n",
+                               strerror(errno));
+                       close(fd);
+                       return NULL;
+               }
+               close(fd);
+
+               for (i = 0; i < LEN(map); i++) {
+                       if (map[i].state == apm_info.ac_state) {
+                               break;
+                       }
+               }
+               return (i == LEN(map)) ? "?" : map[i].symbol;
+       }
 #endif