Diff: webpki/HexDump.cpp

Revision:

0:1728f99b19f6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webpki/HexDump.cpp	Tue Dec 29 21:08:18 2009 +0000
@@ -0,0 +1,115 @@
+#include <stdio.h>
+
+static void hex (int i)
+  {
+    if (i < 10)
+      {
+        putchar (i + 48);
+      }
+    else
+      {
+        putchar (i + 55);
+      }
+  }
+
+static void twohex (int i)
+  {
+    i &= 0xFF;
+    hex (i / 16);
+    hex (i % 16);
+  }
+
+static  void addrhex (int i)
+  {
+    if (i > 65535)
+      {
+        twohex (i / 65536);
+        i %= 65536;
+      }
+    twohex (i / 256);
+    twohex (i % 256);
+  }
+
+#include "hexdump.h"
+
+namespace webpki
+{
+
+void HexDump::printDebugData (const unsigned char *indata, const int length, int bytes_per_line)
+  {
+    int index = 0;
+    int i = 0;
+    if (length == 0)
+      {
+        printf ("No data");
+        return;
+      }
+    bool only_data = false;
+    if (bytes_per_line < 0)
+      {
+        bytes_per_line = -bytes_per_line;
+        only_data = true;
+      }
+    while (index < length)
+      {
+        if (index > 0)
+          {
+            putchar ('\n');
+          }
+        addrhex (index);
+        putchar (':');
+        int q = length - index;
+        if (q > bytes_per_line)
+          {
+            q = bytes_per_line;
+          }
+        for(i = 0; i < q; i++)
+          {
+            putchar (' ');
+            twohex (indata[index + i]);
+          }
+        if (only_data)
+          {
+            index += q;
+            continue;
+          }
+        while (i++ <= bytes_per_line)
+          {
+            putchar (' ');
+            putchar (' ');
+            putchar (' ');
+          }
+        putchar ('\'');
+        for(i = 0; i < q; i++)
+          {
+            int c = indata[index++];
+            if (c < 32 || c >= 127)
+              {
+                putchar ('.');
+              }
+            else
+              {
+                putchar (c);
+              }
+          }
+        putchar ('\'');
+        while (i++ < bytes_per_line)
+          {
+            putchar (' ');
+          }
+      }
+  }
+
+
+void HexDump::printHexString (const unsigned char *indata, int length)
+  {
+    int i = 0;
+    while (i < length)
+      {
+        twohex (indata[i++]);
+      }
+  }
+
+}
+
+