From 53d91c5ce0cb8945b55e8bb54e551cabc51eb28d Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:01 +0100
Subject: [PATCH] Provide a binary to hex conversion function
Provide a function to convert a buffer of binary data into an unterminated
ascii hex string representation of that data.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/linux/kernel.h | 1 +
lib/hexdump.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4c52907a6d8b5..89a0b8e5a9522 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -500,6 +500,7 @@ static inline char * __deprecated pack_hex_byte(char *buf, u8 byte)
extern int hex_to_bin(char ch);
extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);
+extern char *bin2hex(char *dst, const void *src, size_t count);
int mac_pton(const char *s, u8 *mac);
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 8499c810909a5..270773b91923c 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -58,6 +58,22 @@ int hex2bin(u8 *dst, const char *src, size_t count)
}
EXPORT_SYMBOL(hex2bin);
+/**
+ * bin2hex - convert binary data to an ascii hexadecimal string
+ * @dst: ascii hexadecimal result
+ * @src: binary data
+ * @count: binary data length
+ */
+char *bin2hex(char *dst, const void *src, size_t count)
+{
+ const unsigned char *_src = src;
+
+ while (count--)
+ dst = hex_byte_pack(dst, *_src++);
+ return dst;
+}
+EXPORT_SYMBOL(bin2hex);
+
/**
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
--
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