From 2d7da42acbf2782636e481ebd79f30700fb7dc9e Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 19 Jul 2023 21:27:15 +0200
Subject: user /keyboard: handle open()s instantly even if waiting for kb

fixes e.g. `echo */*` in dash
---
 src/user/app/shell/builtins.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/user/app/shell')

diff --git a/src/user/app/shell/builtins.c b/src/user/app/shell/builtins.c
index 734370b..9c294b2 100644
--- a/src/user/app/shell/builtins.c
+++ b/src/user/app/shell/builtins.c
@@ -35,6 +35,10 @@ static void cmd_cat(int argc, char **argv) {
 			if (len <= 0) break;
 			fwrite(buf, 1, len, stdout);
 		}
+		if (ferror(file)) {
+			perror(argv[i]);
+			return;
+		}
 		fclose(file);
 	}
 }
-- 
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