From 667bf7127e0da7160c3eea03151e37590caa1332 Mon Sep 17 00:00:00 2001
From: Daniel Jones <admin@danieljon.es>
Date: Wed, 17 Apr 2019 12:00:29 +0930
Subject: first commit

---
 xwake.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 xwake.c

(limited to 'xwake.c')

diff --git a/xwake.c b/xwake.c
new file mode 100644
index 0000000..0701db6
--- /dev/null
+++ b/xwake.c
@@ -0,0 +1,101 @@
+/*
+ * 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>
+#include <X11/extensions/scrnsaver.h>
+
+/*
+ * start - the time to start preventing the screen from sleeping
+ * end - the time to stop preventing the screen from sleeping
+ * must be in "xx:xx" format
+ */
+char start[] 	= "08:00";
+char end[] 	= "21:00";
+
+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
+gettriggertimes(int *startarr, int *endarr)
+{
+	startarr[0] = atoi(strtok(start, ":"));
+	startarr[1] = atoi(strtok(NULL, ":"));
+
+	endarr[0] = atoi(strtok(end, ":"));
+	endarr[1] = atoi(strtok(NULL, ":"));
+
+}
+
+int
+main(int argc, char *argv[])
+{
+	int time[2];
+	int startarr[2];
+	int endarr[2];
+	int setwontsleep = 0;
+	gettriggertimes(startarr, endarr);
+	Display *dsp = XOpenDisplay(NULL);
+	if(!dsp)
+	{
+		fprintf(stderr, "cannot open X display\n");
+		exit(EXIT_FAILURE);
+	}
+	if (argc > 1)
+	{
+		if (strcmp(argv[1], "reset") == 0)
+		{
+			puts("enabling screensaver and exiting");
+			XScreenSaverSuspend(dsp, False);
+			XFlush(dsp);
+			XCloseDisplay(dsp);
+			return 0;
+		}
+		else
+		{
+			printf("usage: %s [reset]\nreset: re-enable screensaver\n", argv[0]);
+			return 0;
+		}
+	}
+	while (1)
+	{
+		gettime(time);
+		if (setwontsleep == 0 && (startarr[0] == time[0]) && (startarr[1] == time[1]))
+		{
+			XScreenSaverSuspend(dsp, True);
+			XFlush(dsp);
+			setwontsleep = 1;
+		}
+		else if (setwontsleep == 1 && endarr[0] == time[0] && endarr[1] == time[1])
+		{
+			XScreenSaverSuspend(dsp, False);
+			XFlush(dsp);
+			setwontsleep = 0;
+		}
+		sleep(5);
+	}
+	XCloseDisplay(dsp);
+	return 0;
+}
-- 
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