From 4cef4bd0423db2a407182d2f9e534ab77fb81e9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Sun, 6 Oct 2002 21:15:20 +0200
Subject: [PATCH] (base64_encode_group): New function, used by openpgp armoring
code.
Rev: src/nettle/base64.c:1.5
Rev: src/nettle/base64.h:1.7
---
base64.c | 9 +++++++++
base64.h | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/base64.c b/base64.c
index 566cd30b..8de3b2e1 100644
--- a/base64.c
+++ b/base64.c
@@ -59,6 +59,15 @@ static const signed char decode_table[256] =
#define ENCODE(x) (encode_table[0x3F & (x)])
+void
+base64_encode_group(uint8_t *dst, uint32_t group)
+{
+ *dst++ = ENCODE(group >> 18);
+ *dst++ = ENCODE(group >> 12);
+ *dst++ = ENCODE(group >> 6);
+ *dst++ = ENCODE(group);
+}
+
unsigned
base64_encode(uint8_t *dst,
unsigned src_length,
diff --git a/base64.h b/base64.h
index c91c5b33..b45f9654 100644
--- a/base64.h
+++ b/base64.h
@@ -46,6 +46,10 @@ base64_encode(uint8_t *dst,
((BASE64_BINARY_BLOCK_SIZE - 1 + (src_length)) \
/ BASE64_BINARY_BLOCK_SIZE * BASE64_TEXT_BLOCK_SIZE)
+/* Encode a single group */
+void
+base64_encode_group(uint8_t *dst, uint32_t group);
+
/* FIXME: Perhaps rename to base64_decode_ctx? */
struct base64_ctx /* Internal, do not modify */
{
--
GitLab