From c2e3cde667fc1345e33535ac9e1feb5b437602ec Mon Sep 17 00:00:00 2001
From: Panu Matilainen <pmatilai@redhat.com>
Date: Wed, 5 Sep 2007 13:42:25 +0300
Subject: [PATCH] Internal helper function for converting binary blobs to hex
 strings. (transplanted from 5b4c099c3fdb253d5ed440333cb99ad56af24d9f)

---
 rpmdb/header_internal.c | 19 +++++++++++++++++++
 rpmdb/header_internal.h |  8 ++++++++
 2 files changed, 27 insertions(+)

diff --git a/rpmdb/header_internal.c b/rpmdb/header_internal.c
index 9d81c7e..969ca11 100644
--- a/rpmdb/header_internal.c
+++ b/rpmdb/header_internal.c
@@ -172,3 +172,22 @@ void headerDump(Header h, FILE *f, int flags,
 /*@=type@*/
 /*@=sizeoftype@*/
 /*@=boundsread@*/
+
+char * bin2hex(const char *data, size_t size)
+{
+    static char hex[] = "0123456789abcdef";
+    const char * s = data;
+    char * t, * val;
+    val = t = xmalloc(size * 2 + 1);
+    while (size-- > 0) {
+	unsigned int i;
+	i = *s++;
+	*t++ = hex[ (i >> 4) & 0xf ];
+	*t++ = hex[ (i     ) & 0xf ];
+    }
+    *t = '\0';
+
+    return val;
+}
+    
+    
diff --git a/rpmdb/header_internal.h b/rpmdb/header_internal.h
index a85a219..483d8a5 100644
--- a/rpmdb/header_internal.h
+++ b/rpmdb/header_internal.h
@@ -202,6 +202,14 @@ void headerDump(Header h, FILE *f, int flags,
 	/*@modifies f, fileSystem @*/;
 #define HEADER_DUMP_INLINE   1
 
+/* XXX not perhaps the right place but.. */
+/** \ingroup header
+ * Convert binary blob to printable hex string 
+ * @param data		binary data
+ * @param size		size of data in bytes
+ */
+char * bin2hex(const char *data, size_t count);
+
 #ifdef __cplusplus
 }   
 #endif
-- 
2.7.4