1 files changed, 38 insertions, 0 deletions
diff --git a/libio/dbz/byteflip.c b/libio/dbz/byteflip.c
new file mode 100644
index 00000000000..d54c6591fa1
--- /dev/null
+++ b/libio/dbz/byteflip.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+
+#define	MAXWORD	32
+
+int
+main(argc, argv)
+int argc;
+char *argv[];
+{
+	register int len;
+	int inmap[MAXWORD];
+	int outmap[MAXWORD];
+	char in[MAXWORD];
+	char out[MAXWORD];
+	register int i;
+	register int a;
+
+	a = 1;
+	len = atoi(argv[a++]);
+	if (len > MAXWORD)
+		abort();	/* kind of drastic... */
+	for (i = 0; i < len; i++)
+		inmap[i] = atoi(argv[a++]);
+	if (atoi(argv[a++]) != len)
+		abort();
+	for (i = 0; i < len; i++)
+		outmap[i] = atoi(argv[a++]);
+
+	while (fread(in, 1, len, stdin) == len) {
+		for (i = 0; i < len; i++)
+			out[outmap[i]] = in[inmap[i]];
+		fwrite(out, 1, len, stdout);
+	}
+#ifdef DBZ_FINISH
+	DBZ_FINISH;
+#endif
+	exit(0);
+}