first commit

1 files changed, 121 insertions, 0 deletions

diff --git a/binstatus.c b/binstatus.c
new file mode 100644
index 0000000..39fce2a
--- /dev/null
+++ b/binstatus.c
@@ -0,0 +1,121 @@
+/*
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ *(at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <X11/Xlib.h>
+
+#define MAXLENGTH 256
+int binary = 1; /* 0 = decimal display, 1 = binary display */
+int miltime = 0; /* 0 = 12 hour time, 1 = 24 hour time */
+
+int
+dectobin(int dec)
+{
+	if (dec == 0) return 0;
+	if (dec == 1) return 1;
+	return (dec % 2) + 10 * dectobin(dec / 2);
+}
+
+void
+gettime(int *store)
+{
+	time_t t = time(NULL);
+	struct tm *tm = localtime(&t);
+	store[0] = tm->tm_hour;
+	store[1] = tm->tm_min;
+}
+
+void
+formatstring(char *status, int *time)
+{
+	if (binary)
+	{
+
+		snprintf(status, MAXLENGTH, "%05d %06d", dectobin(time[0]),
+		dectobin(time[1]));
+	}
+	else
+	{
+		snprintf(status, MAXLENGTH, "%02d:%02d", time[0], time[1]);
+	}
+}
+
+int
+converthour(int hour)
+{
+	// is there a better way?
+	switch (hour)
+	{
+	case 0:	 return 12;
+	case 13: return 1;
+	case 14: return 2;
+	case 15: return 3;
+	case 16: return 4;
+	case 17: return 5;
+	case 18: return 6;
+	case 19: return 7;
+	case 20: return 8;
+	case 21: return 9;
+	case 22: return 10;
+	case 23: return 11;
+	default: return hour;
+	}
+}
+
+int
+main(int argc, char *argv[])
+{
+	for (int c = 1; c < argc; c++)
+	{
+		if (argc >= 2)
+		{
+			if (strcmp(argv[c], "-d") == 0)
+				binary = 0;
+			else if (strcmp(argv[c], "-m") == 0)
+				miltime = 1;
+			else
+			{
+				printf("usage: %s [-d] [-m]\n-d: decimal output\n"
+					"-m: 24-hour format\n", argv[0]);
+				exit(EXIT_SUCCESS);
+			}
+		}
+	}
+	int exitflag = EXIT_SUCCESS;
+	char status[MAXLENGTH];
+	int time[2];
+	Display *dsp = XOpenDisplay(NULL);
+	if(!dsp)
+	{
+		fprintf(stderr, "cannot open X display\n");
+		exit(EXIT_FAILURE);
+	}
+	while (1)
+	{
+		gettime(time);
+		if (!miltime && time[0] > 12)
+			time[0] = converthour(time[0]);
+		formatstring(status, time);
+		XStoreName(dsp, DefaultRootWindow(dsp), status);
+		XFlush(dsp);
+		sleep(1);
+	}
+	XCloseDisplay(dsp);
+	return exitflag;
+}