* src/digits.c (simple_decode_hex): New function.

Rev: src/digits.c:1.3
Rev: src/digits.h:1.3

src/digits.c

@@ -25,6 +25,7 @@
 
 #include "digit_table.h"
 #include "werror.h"
+#include "xalloc.h"
 
 #include <assert.h>
 
@@ -74,3 +75,28 @@ base64_decode(struct base64_state *state, UINT8 c)
   
   return res;
 }
+
+struct lsh_string *
+simple_decode_hex(const unsigned char *in)
+{
+  unsigned length = strlen(in);
+  unsigned i, j;
+  
+  struct lsh_string *out;
+  
+  assert(!(length % 2));
+  out = lsh_string_alloc(length/2);
+
+  for (i = j = 0; i<length; )
+  {
+    int d1 = hex_digits[in[i++]];
+    int d2 = hex_digits[in[i++]];
+
+    assert(d1 >= 0);
+    assert(d2 >= 0);
+
+    out->data[j++] = (d1 << 4) | d2;
+  }
+
+  return out;
+}

src/digits.h

@@ -56,4 +56,7 @@ base64_init(struct base64_state *state, UINT8 terminator);
 int
 base64_decode(struct base64_state *state, UINT8 c);
 
+/* Only used by the testsuite */
+struct lsh_string *simple_decode_hex(const unsigned char *in);
+
 #endif /* LSH_DIGITS_H_INCLUDED */