From 37da2899f40661e3e9631e497da8dc59b971cbd0 Mon Sep 17 00:00:00 2001
From: "Charles.Forsyth" <devnull@localhost>
Date: Fri, 22 Dec 2006 17:07:39 +0000
Subject: 20060303a

---
 lib9/readn.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 lib9/readn.c

(limited to 'lib9/readn.c')

diff --git a/lib9/readn.c b/lib9/readn.c
new file mode 100644
index 00000000..74554264
--- /dev/null
+++ b/lib9/readn.c
@@ -0,0 +1,21 @@
+#include "lib9.h"
+
+long
+readn(int f, void *av, long n)
+{
+	char *a;
+	long m, t;
+
+	a = av;
+	t = 0;
+	while(t < n){
+		m = read(f, a+t, n-t);
+		if(m <= 0){
+			if(t == 0)
+				return m;
+			break;
+		}
+		t += m;
+	}
+	return t;
+}
-- 
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