$OpenBSD: patch-xbattbar_c,v 1.2 2012/04/04 02:19:16 brynet Exp $
--- xbattbar.c.orig	Tue Apr  3 23:30:11 2012
+++ xbattbar.c	Tue Apr  3 23:30:17 2012
@@ -29,6 +29,9 @@ static char *ReleaseVersion="1.4.2";
 #include <sys/time.h>
 #include <signal.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
 #include <unistd.h>
 #include <sys/file.h>
 #include <sys/ioctl.h>
@@ -67,6 +70,8 @@ char *ONOUT_C  = "olive drab";
 char *OFFIN_C  = "blue";
 char *OFFOUT_C = "red";
 
+char *clockfmt = "%+";
+int displayclock = False;
 int alwaysontop = False;
 
 struct itimerval IntervalTimer;     /* APM polling interval timer */
@@ -118,7 +123,7 @@ void usage(char **argv)
   fprintf(stderr,
     "\n"	  
     "usage:\t%s [-a] [-h|v] [-p sec] [-t thickness]\n"
-    "\t\t[-I color] [-O color] [-i color] [-o color]\n"
+    "\t\t[-I color] [-O color] [-i color] [-o color] [-T time-format]\n"
     "\t\t[ top | bottom | left | right ]\n"
     "-a:     always on top.\n"
     "-v, -h: show this message.\n"
@@ -126,6 +131,7 @@ void usage(char **argv)
     "-p:     polling interval. [def: 10 sec.]\n"
     "-I, -O: bar colors in AC on-line. [def: \"green\" & \"olive drab\"]\n"
     "-i, -o: bar colors in AC off-line. [def: \"blue\" and \"red\"]\n"
+    "-T:     show time in popup window. [def: %%+]\n"
     "top, bottom, left, right: bar localtion. [def: \"bottom\"]\n",
 	  argv[0]);
   exit(0);
@@ -223,7 +229,7 @@ main(int argc, char **argv)
   int ch;
 
   about_this_program();
-  while ((ch = getopt(argc, argv, "at:f:hI:i:O:o:p:v")) != -1)
+  while ((ch = getopt(argc, argv, "at:f:hI:i:O:o:p:T::v")) != -1)
     switch (ch) {
     case 'a':
       alwaysontop = True;
@@ -251,6 +257,12 @@ main(int argc, char **argv)
       bi_interval = atoi(optarg);
       break;
 
+    case 'T':
+      if (optarg)
+        clockfmt = optarg;
+      displayclock = 1;
+      break;
+
     case 'h':
     case 'v':
       usage(argv);
@@ -339,7 +351,14 @@ void showdiagbox(void)
   int pixw, pixh;
   int boxw, boxh;
   char diagmsg[64];
+  char timemsg[64];
+  time_t now;
 
+  /* compose time and date message */
+  if (displayclock) {
+    time(&now);
+    strftime(timemsg, 64, clockfmt, localtime(&now));
+  }
   /* compose diag message and calculate its size in pixels */
   sprintf(diagmsg,
          "AC %s-line: battery level is %d%%",
@@ -349,6 +368,8 @@ void showdiagbox(void)
   pixh = fontp->ascent + fontp->descent;
   boxw = pixw + DiagXMergin * 2;
   boxh = pixh + DiagYMergin * 2;
+  if (displayclock)
+	  boxh += pixh + DiagYMergin;
 
   /* create status window */
   if(winstat != -1) disposediagbox();
@@ -367,6 +388,11 @@ void showdiagbox(void)
              gcstat,
              DiagXMergin, fontp->ascent+DiagYMergin,
              diagmsg, strlen(diagmsg));
+  if (displayclock)
+    XDrawString(disp, winstat, gcstat,
+               boxw/2 - XTextWidth(fontp, timemsg, strlen(timemsg))/2,
+               2*fontp->ascent+2*DiagYMergin,
+               timemsg, strlen(timemsg));
 }
 
 void disposediagbox(void)
@@ -575,7 +601,7 @@ void battery_check(void)
 
 #endif /* __FreeBSD__ */
 
-#ifdef __NetBSD__
+#if defined(__NetBSD__) || defined(__OpenBSD__)
 
 #include <machine/apmvar.h>