[gnome-keyring] [egg] Fix problems building on 32-bit.

[Stefan Walter <stefw src gnome org>]

commit 2964e1671c3f472055fe5070f5b746d5389cfbc0
Author: Stef Walter <stef memberwebs com>
Date:   Wed Jul 21 16:26:08 2010 -0500

    [egg] Fix problems building on 32-bit.
    
    Make encoding of unsigned longs adapt to long size.

 egg/egg-asn1x.c |   26 +++++++++++---------------
 1 files changed, 11 insertions(+), 15 deletions(-)
---
diff --git a/egg/egg-asn1x.c b/egg/egg-asn1x.c
index cfe51a3..9f0d5d3 100644
--- a/egg/egg-asn1x.c
+++ b/egg/egg-asn1x.c
@@ -1983,29 +1983,25 @@ anode_read_integer_as_ulong (GNode *node, Atlv *tlv, gulong *value)
 static gboolean
 anode_write_integer_ulong (gulong value, guchar *data, gsize *n_data)
 {
-	guchar buf[8];
-	gint bytes;
-
-	buf[0] = (value >> 56) & 0xFF;
-	buf[1] = (value >> 48) & 0xFF;
-	buf[2] = (value >> 40) & 0xFF;
-	buf[3] = (value >> 32) & 0xFF;
-	buf[4] = (value >> 24) & 0xFF;
-	buf[5] = (value >> 16) & 0xFF;
-	buf[6] = (value >> 8) & 0xFF;
-	buf[7] = (value >> 0) & 0xFF;
-
-	for (bytes = 7; bytes >= 0; --bytes)
+	guchar buf[sizeof (gulong)];
+	gint bytes, i, off;
+
+	for (i = 0; i < sizeof (ulong); ++i) {
+		off = sizeof (ulong) - (i + 1);
+		buf[i] = (value >> (off * 8)) & 0xFF;
+	}
+
+	for (bytes = sizeof (gulong) - 1; bytes >= 0; --bytes)
 		if (!buf[bytes])
 			break;
 
-	bytes = 8 - (bytes + 1);
+	bytes = sizeof (gulong) - (bytes + 1);
 	if (bytes == 0)
 		bytes = 1;
 
 	if (data) {
 		g_assert (*n_data >= bytes);
-		memcpy (data, buf + (8 - bytes), bytes);
+		memcpy (data, buf + (sizeof (gulong) - bytes), bytes);
 	}
 	*n_data = bytes;
 	return TRUE;