1 files changed, 28 insertions, 0 deletions
diff --git a/lib/hexdump.c b/lib/hexdump.c
new file mode 100644
index 0000000..86e731e
--- /dev/null
+++ b/lib/hexdump.c
@@ -0,0 +1,28 @@
+#include <ctype.h>
+
+#include "ipf.h"
+
+void hexdump(out, addr, len, ascii)
+FILE *out;
+void *addr;
+int len, ascii;
+{
+	FILE *fpout;
+	u_char *s, *t;
+	int i;
+
+	fpout = out ? out : stdout;
+	for (i = 0, s = addr; i < len; i++, s++) {
+		fprintf(fpout, "%02x", *s);
+		if (i % 16 == 15) {
+			if (ascii != 0) {
+				fputc('\t', fpout);
+				for (t = s - 15; t<= s; t++)
+					fputc(ISPRINT(*t) ? *t : '.', fpout);
+			}
+			fputc('\n', fpout);
+		} else if (i % 4 == 3) {
+			fputc(' ', fpout);
+		}
+	}
+}