From a8c23a4c2a086db0d88e6dc6f320bb3c8735b169 Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri, 14 Dec 2018 20:35:23 -0500
Subject: [PATCH] rawnet - fix logging, add hexdump.

---
 src/rawnet/rawnetsupp.c | 29 +++++++++++++++++++++++++++++
 src/rawnet/rawnetsupp.h |  4 +++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/src/rawnet/rawnetsupp.c b/src/rawnet/rawnetsupp.c
index 94c8541..4f6e33e 100644
--- a/src/rawnet/rawnetsupp.c
+++ b/src/rawnet/rawnetsupp.c
@@ -149,3 +149,32 @@ unsigned long crc32_buf(const char *buffer, unsigned int len) {
 
   return ~crc;
 }
+
+void rawnet_hexdump(unsigned char *what, int count ) {
+  static const char hex[] = "0123456789abcdef";
+  char buffer1[16 * 3 + 1];
+  char buffer2[16 + 1];
+  unsigned offset;
+
+
+  offset = 0;
+  while (count) {
+    unsigned char x = *what++;
+
+    buffer1[offset * 3] = hex[x >> 4];
+    buffer1[offset * 3 + 1] = hex[x & 0x0f];
+    buffer1[offset * 3 + 2] = ' ';
+
+    buffer2[offset] = isprint(x) ? x : '.';
+
+
+    --count;
+    ++offset;
+    if (offset == 16 || count == 0) {
+      buffer1[offset * 3] = 0;
+      buffer2[offset] = 0;
+      fprintf(stderr, "%-50s %s\n", buffer1, buffer2);
+      offset = 0;
+    }
+  }
+}
diff --git a/src/rawnet/rawnetsupp.h b/src/rawnet/rawnetsupp.h
index 34dd97d..3e1f667 100644
--- a/src/rawnet/rawnetsupp.h
+++ b/src/rawnet/rawnetsupp.h
@@ -52,5 +52,7 @@ extern int util_string_set(char **str, const char *new_value);
 
 extern unsigned long crc32_buf(const char *buffer, unsigned int len);
 
-#define log_message(level,...) fprintf(stderr,__VA_ARGS__)
+void rawnet_hexdump(unsigned char *what, int count );
+
+#define log_message(level,...) do { fprintf(stderr,__VA_ARGS__); fputs("\n", stderr); } while (0)
 #endif