From ed36aabf97f769126ff075e43285a45aa5eec518 Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Fri, 19 Jun 2020 10:37:35 +0200
Subject: mehr Fehlerbehandlung...

---
 csv.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/csv.c b/csv.c
index dfc79c9..4d48f01 100644
--- a/csv.c
+++ b/csv.c
@@ -255,6 +255,15 @@ csv_read(csv_t *csv, FILE *in)
 	assert(csv != NULL);
 	assert(in != NULL);
 
+	/* do not try to read if EOF has already been seen */
+	if ( feof(in) ) {
+		return -1;
+	}
+
+	if ( ferror(in) ) {
+		csv_fatal_error("I/O error", csv->csv_options);
+	}
+
 	enum {
 		STATE_START_FIELD,
 		STATE_QUOTED_FIELD,
@@ -376,6 +385,10 @@ csv_read(csv_t *csv, FILE *in)
 			return csv->csv_field.pos;
 
 		case STATE_END_FILE:
+			if ( ferror(in) ) {
+				csv_fatal_error("I/O error", csv->csv_options);
+			}
+
 			if ( csv_string_empty(&csv->csv_string) ) {
 				return -1;	/* EOF reached */
 			}
-- 
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