refactor; start adding debugging logs to midpoint rend stuff

svn:r1445

src/common/crypto.c

@@ -1403,8 +1403,6 @@ base64_decode(char *dest, int destlen, const char *src, int srclen)
   return ret;
 }
 
-static const char BASE32_CHARS[] = "abcdefghijklmnopqrstuvwxyz012345";
-
 int
 base32_encode(char *dest, int destlen, const char *src, int srclen)
 {

src/common/crypto.h

@@ -77,6 +77,7 @@ int crypto_pk_check_fingerprint_syntax(const char *s);
 
 int base64_encode(char *dest, int destlen, const char *src, int srclen);
 int base64_decode(char *dest, int destlen, const char *src, int srclen);
+#define BASE32_CHARS "abcdefghijklmnopqrstuvwxyz012345"
 int base32_encode(char *dest, int destlen, const char *src, int srclen);
 
 /* Key negotiation */

src/common/util.c

@@ -109,6 +109,17 @@ void set_uint32(char *cp, uint32_t v)
 }
 #endif
 
+void hex_encode(const char *from, int fromlen, char *to)
+{
+  const unsigned char *fp = from;
+  static const char TABLE[] = "0123456789abcdef";
+  while (fromlen) {
+    *to++ = TABLE[*fp >> 4];
+    *to++ = TABLE[*fp & 7];
+    ++fp;
+  }
+  *to = '\0';
+}
 
 /*
  * A simple smartlist interface to make an unordered list of acceptable

src/common/util.h

@@ -81,6 +81,8 @@ void set_uint32(char *cp, uint32_t v);
 #endif
 #endif
 
+void hex_encode(const char *from, int fromlen, char *to);
+
 typedef struct smartlist_t {
   void **list;
   int num_used;