=== modified file 'bin/fileset.awk'
--- bin/fileset.awk	2016-01-05 15:40:55 +0000
+++ bin/fileset.awk	2016-01-05 15:21:24 +0000
@@ -173,10 +173,9 @@
 		}
 
 		# cat, copy, content; eats rest of statement and puts it into the file
-		# binary, base64; decodes the arguments and changes file content
 		if(cchar ~ /[bBcC]/) {
 			shellfunc("f 1", crest)
-			content = get_argument(cchar ~ /[BC]/)
+			content = get_argument(cchar ~ "BC")
 
 			func_name = "fn" func_num++
 
@@ -201,6 +200,24 @@
 			continue
 		}
 
+		# binary, base64; decodes the arguments and changes file content
+		if(cchar ~ /[bB]/) {
+			shellfunc("f", crest)
+			content = get_argument(cchar == "B")
+
+			func_name = "fn" func_num++
+			funcs[func_name] = "\tbase64 <<<"quoted(content)
+
+			if(crest ~ /a/) {
+				print_b("if ! $check_only; then")
+				print_i(func_name " >>" fname)
+				print_e("fi")
+			} else {
+				print_i("c " func_name)
+			}
+			continue
+		}
+
 		# run shell command
 		if(cchar == "!") {
 			# use as Filter