From de407aa9fa93192aad6773a53fe51295d9c8cb8e Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 1 Jun 2023 15:02:59 +0200
Subject: indexamajig: Avoid is_hdf5_file(NULL, ...)

---
 src/indexamajig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/indexamajig.c b/src/indexamajig.c
index 358ba5a3..427843bc 100644
--- a/src/indexamajig.c
+++ b/src/indexamajig.c
@@ -1168,7 +1168,7 @@ int main(int argc, char *argv[])
 		return 1;
 	}
 
-	if ( is_hdf5_file(args.filename, &err) ) {
+	if ( (args.filename != NULL) && is_hdf5_file(args.filename, &err) ) {
 		ERROR("Your input file appears to be an HDF5 file.\n");
 		ERROR("The input file should be a list of data files, not the "
 		      "data file itself.\n");
-- 
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