From 08b9a637106a19fdbd1e3361dcc06c9f47721218 Mon Sep 17 00:00:00 2001
From: Simon Lieb <simon@tibu.fr>
Date: Mon, 5 Aug 2013 19:33:37 +0200
Subject: [PATCH] Read/Write byte by byte using using fread/fwrite.

Do not read 1024 arbitrary bytes.

Slow down output to character atomicity.
---
 slow.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/slow.c b/slow.c
index 0c9e59c..9089e49 100644
--- a/slow.c
+++ b/slow.c
@@ -4,17 +4,17 @@
 #include <unistd.h>
 
 int main(int argc, char *argv[]) {
-	char		line[1024];
-	int		linesize = sizeof(line);
-	int		useconds = 1000000;
+	char		buffer;
+	size_t		nread;
+	useconds_t	useconds = 1000000; // default 1 second
 
 	if (argc == 2) {
 		useconds = atoi(argv[1]);
 	}
 
-	while(fgets(line, linesize, stdin)) {
+	while((nread = fread(&buffer, 1, sizeof buffer, stdin)) > 0) {
 		usleep(useconds);
-		fputs(line, stdout);
+		fwrite(&buffer, 1, nread, stdout);
 	}
 
 	return 0;