--- a/.hgignore	Tue Mar 19 15:12:04 2019 -0400
+++ b/.hgignore	Tue Mar 19 23:05:22 2019 -0400
@@ -14,6 +14,7 @@
 sexpr.tab.h
 
 libjeffpc.so
+cbor-dumper
 sexpr-repl
 
 hgversion.h

--- a/CMakeLists.txt	Tue Mar 19 15:12:04 2019 -0400
+++ b/CMakeLists.txt	Tue Mar 19 23:05:22 2019 -0400
@@ -212,6 +212,18 @@
 add_dependencies(jeffpc revisiontag)
 
 #
+# CBOR file dumper
+#
+
+add_executable(cbor-dumper
+	cbor-dumper.c
+)
+
+target_link_libraries(cbor-dumper
+	jeffpc
+)
+
+#
 # REPL executable
 #
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cbor-dumper.c	Tue Mar 19 23:05:22 2019 -0400
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2019 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <jeffpc/io.h>
+#include <jeffpc/cbor.h>
+
+static void dump(const char *fname)
+{
+	struct buffer input;
+	struct val *val;
+	size_t len;
+	char *in;
+
+	in = read_file_len(fname, &len);
+	if (IS_ERR(in)) {
+		fprintf(stderr, "Failed to read input file %s: %s\n", fname,
+			xstrerror(PTR_ERR(in)));
+		exit(1);
+	}
+
+	buffer_init_static(&input, in, len, false);
+
+	val = cbor_unpack_val(&input);
+	if (IS_ERR(val)) {
+		fprintf(stderr, "Failed to unpack input file %s: %s\n", fname,
+			xstrerror(PTR_ERR(val)));
+		exit(2);
+	}
+
+	val_dump_file(stdout, val, 0);
+
+	val_putref(val);
+	free(in);
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	for (i = 1; i < argc; i++)
+		dump(argv[i]);
+
+	return 0;
+}