From e591c5ecff8985e58fd9e85b06d1d12dea6dbfd8 Mon Sep 17 00:00:00 2001
From: "K. Lange" <klange@toaruos.org>
Date: Tue, 2 Oct 2018 23:05:58 +0900
Subject: [PATCH] Throw a return value on a bad open in tee

---
 apps/tee.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/apps/tee.c b/apps/tee.c
index 2ceeedb0..3e9b985c 100644
--- a/apps/tee.c
+++ b/apps/tee.c
@@ -14,6 +14,7 @@
 
 int main(int argc, char * argv[]) {
 	int append = 0;
+	int ret_val = 0;
 	int opt;
 
 	while ((opt = getopt(argc, argv, "ai")) != -1) {
@@ -34,6 +35,7 @@ int main(int argc, char * argv[]) {
 		files[i] = fopen(argv[j], append ? "a" : "w");
 		if (!files[i]) {
 			fprintf(stderr, "%s: %s: %s\n", argv[0], argv[j], strerror(errno));
+			ret_val = 1;
 			file_count--;
 			continue;
 		} else {
@@ -56,5 +58,5 @@ int main(int argc, char * argv[]) {
 		fclose(files[i]);
 	}
 
-	return 0;
+	return ret_val;
 }