From b0134a377ec703e82ed5e3f9dd18882122c1a11a Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Sat, 9 Sep 2000 13:31:45 +0000
Subject: [PATCH] Added a touch of error checking to the screen dump routine,
 i.e. don't die if you can't open the output file.

---
 simgear/screen/screen-dump.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/simgear/screen/screen-dump.cxx b/simgear/screen/screen-dump.cxx
index da4eabb4..e986d61b 100644
--- a/simgear/screen/screen-dump.cxx
+++ b/simgear/screen/screen-dump.cxx
@@ -50,7 +50,11 @@ void my_glWritePPMFile(const char *filename, GLubyte *buffer, int win_width, int
 
     ibuffer = (unsigned char *) malloc(win_width*win_height*RGB);
 
-    fp = fopen(filename, "wb");
+    if ( (fp = fopen(filename, "wb")) == NULL ) {
+	printf("Warning: cannot open %s\n", filename);
+	return;
+    }
+
     fprintf(fp, "P6\n# CREATOR: glReadPixel()\n%d %d\n%d\n",
 	    win_width, win_height, UCHAR_MAX);
     q = 0;
-- 
2.39.5