From ccec4d82798d46a8bc7e7656d08c57544cd08582 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Mon, 13 Jul 2015 00:11:25 -0500
Subject: [PATCH] Produce an error message for "cat /mnt", not just return
 code.

---
 toys/posix/cat.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/toys/posix/cat.c b/toys/posix/cat.c
index 01134a72..3aae4a19 100644
--- a/toys/posix/cat.c
+++ b/toys/posix/cat.c
@@ -57,7 +57,10 @@ static void do_cat(int fd, char *name)
 
   for(;;) {
     len = read(fd, toybuf, size);
-    if (len < 0) toys.exitval = EXIT_FAILURE;
+    if (len < 0) {
+      toys.exitval = EXIT_FAILURE;
+      perror_msg("%s", name);
+    }
     if (len < 1) break;
     if ((CFG_CAT_V || CFG_CATV) && (toys.optflags&~FLAG_u)) {
       for (i=0; i<len; i++) {
-- 
2.11.0