From 776275a747658f8ea5c1a4e0b514b0920de3f68e Mon Sep 17 00:00:00 2001
From: Sergey Bugaev <bugaevc@serenityos.org>
Date: Wed, 20 May 2020 14:56:13 +0300
Subject: [PATCH] LibC: Handle fgets(size = 0)

I accidentally broke this in the recent rewrite. This reinstantiates the
behavior implemented in https://github.com/SerenityOS/serenity/commit/65714685259d1ea4ba9d32bc41aee6fc8c56a645.
---
 Libraries/LibC/stdio.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Libraries/LibC/stdio.cpp b/Libraries/LibC/stdio.cpp
index f000811b196..4075ed3321e 100644
--- a/Libraries/LibC/stdio.cpp
+++ b/Libraries/LibC/stdio.cpp
@@ -324,6 +324,9 @@ bool FILE::gets(u8* data, size_t size)
     // separate implementation.
     size_t total_read = 0;
 
+    if (size == 0)
+        return false;
+
     while (size > 1) {
         if (m_buffer.may_use()) {
             // Let's see if the buffer has something queued for us.