From 5e70db6137a51d3752ac63ac12fdacbdb8e23bd7 Mon Sep 17 00:00:00 2001
From: jmtcsngr <jmtc@sanger.ac.uk>
Date: Thu, 30 May 2024 11:19:46 +0100
Subject: [PATCH] fix compiler warning in t_read2tags

catch and check return fgets
---
 test/t_read2tags.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/t_read2tags.c b/test/t_read2tags.c
index 4c2dbb3..6db2254 100644
--- a/test/t_read2tags.c
+++ b/test/t_read2tags.c
@@ -344,7 +344,11 @@ void checkFiles(char *gotfile, char *expectfile, int verbose)
     char expline[1024];
 
     while (fgets(getline, 1023, getfp) > 0) {
-        fgets(expline, 1023, expfp);
+        if ((fgets(expline, 1023, expfp)) == NULL) {
+            if (verbose) fprintf(stderr, "failed to read from expfp\n");
+            failure++;
+            break;
+        }
         if (strcmp(getline,expline) != 0) {
             fprintf(stderr, "Expected: %sFound   : %s\n", expline, getline);
             failure++;