From 11461b6fd50c1b1cd1e0a0c981d1b6b0c8bbc07e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Fri, 2 Jan 2015 21:05:38 +0100
Subject: Constify buffer API

---
 buffer.c | 4 ++--
 buffer.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/buffer.c b/buffer.c
index 9722101..a3e623d 100644
--- a/buffer.c
+++ b/buffer.c
@@ -36,7 +36,7 @@ void buffer_free(Buffer *buf) {
 	buf->size = 0;
 }
 
-bool buffer_put(Buffer *buf, void *data, size_t len) {
+bool buffer_put(Buffer *buf, const void *data, size_t len) {
 	if (!buffer_alloc(buf, len))
 		return false;
 	memcpy(buf->data, data, len);
@@ -44,7 +44,7 @@ bool buffer_put(Buffer *buf, void *data, size_t len) {
 	return true;
 }
 
-bool buffer_append(Buffer *buf, void *data, size_t len) {
+bool buffer_append(Buffer *buf, const void *data, size_t len) {
 	size_t rem = buf->size - buf->len;
 	if (len > rem && !buffer_alloc(buf, buf->size + len - rem))
 		return false;
diff --git a/buffer.h b/buffer.h
index 190f579..fc509b8 100644
--- a/buffer.h
+++ b/buffer.h
@@ -14,7 +14,7 @@ typedef struct {
 void buffer_free(Buffer *buf);
 bool buffer_alloc(Buffer *buf, size_t size);
 void buffer_truncate(Buffer *buf);
-bool buffer_put(Buffer *buf, void *data, size_t len);
-bool buffer_append(Buffer *buf, void *data, size_t len);
+bool buffer_put(Buffer *buf, const void *data, size_t len);
+bool buffer_append(Buffer *buf, const void *data, size_t len);
 
 #endif
-- 
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