From 2ed2b1c9ca7c657d17128e0b0ec9c362891c6388 Mon Sep 17 00:00:00 2001
From: robertl <robertl>
Date: Thu, 2 Jul 2009 17:37:18 +0000
Subject: [PATCH] Add checks for invalid formats given to -i I -o O inputfile
 outputfile form of command line.

---
 main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/main.c b/main.c
index ea26c617b..778d68743 100644
--- a/main.c
+++ b/main.c
@@ -577,6 +577,9 @@ main(int argc, char *argv[])
 		cet_convert_init(ivecs->encode, 1);
 
 		start_session(ivecs->name, argv[0]);
+		if (ivecs->rd_init == NULL) {
+			fatal ("Format does not support reading.\n");
+		}
 		ivecs->rd_init(argv[0]);
 		ivecs->read();
 		ivecs->rd_deinit();
@@ -588,6 +591,10 @@ main(int argc, char *argv[])
 		{
 			cet_convert_init(ovecs->encode, 1);
 			cet_convert_strings(NULL, global_opts.charset, NULL);
+
+			if (ovecs->wr_init == NULL) {
+				fatal ("Format does not support writing.\n");
+			}
 			
 			ovecs->wr_init(argv[1]);
 			ovecs->write();
-- 
2.30.2