From 34491ca8c8ab719472c644668c7b14f09e088be4 Mon Sep 17 00:00:00 2001
From: svenhoefer <svenhoefer@svenhoefer.com>
Date: Tue, 3 May 2016 12:21:01 +0200
Subject: [PATCH] - dpf: read goodbye message from /tmp/lcd/goodbye

---
 drv_dpf.c             | 38 +++++++++++++++++++++++++++++++++++---
 drv_generic_graphic.c |  5 +++++
 2 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/drv_dpf.c b/drv_dpf.c
index d4c051d..01243c2 100644
--- a/drv_dpf.c
+++ b/drv_dpf.c
@@ -418,9 +418,41 @@ int drv_dpf_quit(const int quiet)
     drv_generic_graphic_clear();
 
     /* say goodbye... */
-    if (!quiet) {
-	drv_generic_graphic_greet("goodbye!", NULL);
-    }
+	//read goodby message from /tmp/lcd/goodbye
+	char line1[80], value[80];
+	FILE *fp;
+	int i, size;
+
+	fp = fopen("/tmp/lcd/goodbye", "r");
+	if (!fp) {
+		debug("couldn't open file '/tmp/lcd/goodbye'");
+		line1[0] = '\0';
+		if (!quiet) {
+			drv_generic_graphic_greet("goodbye!", NULL);
+		}
+	} else {
+		i = 0;
+		while (!feof(fp) && i++ < 1) {
+			fgets(value, sizeof(value), fp);
+			size = strcspn(value, "\r\n");
+			strncpy(line1, value, size);
+			line1[size] = '\0';
+			/* more than 80 chars, chew up rest of line */
+			while (!feof(fp) && strchr(value, '\n') == NULL) {
+				fgets(value, sizeof(value), fp);
+			}
+		}
+		fclose(fp);
+		if (i <= 1) {
+			debug("'/tmp/lcd/goodbye' seems empty");
+			line1[0] = '\0';
+		}
+		/* remove the file */
+		debug("removing '/tmp/lcd/goodbye'");
+		unlink("/tmp/lcd/goodbye");
+
+		drv_generic_graphic_greet(NULL, line1);
+	}
 
     drv_generic_graphic_quit();
 
diff --git a/drv_generic_graphic.c b/drv_generic_graphic.c
index 847bbf4..396f229 100644
--- a/drv_generic_graphic.c
+++ b/drv_generic_graphic.c
@@ -290,6 +290,7 @@ static void drv_generic_graphic_render(const int layer, const int row, const int
 /* say hello to the user */
 int drv_generic_graphic_greet(const char *msg1, const char *msg2)
 {
+#if 0
     char *line1[] = { "* LCD4Linux " VERSION " *",
 	"LCD4Linux " VERSION,
 	"* LCD4Linux *",
@@ -302,6 +303,10 @@ int drv_generic_graphic_greet(const char *msg1, const char *msg2)
 	"lcd4linux.bulix.org",
 	NULL
     };
+#endif
+
+    char *line1[] = { NULL };
+    char *line2[] = { NULL };
 
     int i;
     int flag = 0;
-- 
2.39.5