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diff --git a/contrib/file/magic/Magdir/cbor b/contrib/file/magic/Magdir/cbor
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+
+#------------------------------------------------------------------------------
+# $File: cbor,v 1.2 2024/09/04 19:06:12 christos Exp $
+# cbor: file(1) magic for CBOR files as defined in RFC 7049
+
+0 string \xd9\xd9\xf7 Concise Binary Object Representation (CBOR) container
+!:mime application/cbor
+>3 ubyte <0x20 (positive integer)
+>3 ubyte <0x40
+>>3 ubyte >0x1f (negative integer)
+>3 ubyte <0x60
+>>3 ubyte >0x3f (byte string)
+>3 ubyte <0x80
+>>3 ubyte >0x5f (text string)
+>3 ubyte <0xa0
+>>3 ubyte >0x7f (array)
+>3 ubyte <0xc0
+>>3 ubyte >0x9f (map)
+>3 ubyte <0xe0
+>>3 ubyte >0xbf (tagged)
+>3 ubyte >0xdf (other)