Doc fix for asn1_get_length_der.

diff --git a/lib/decoding.c b/lib/decoding.c
index 15701dd..c267582 100644 (file)
--- a/lib/decoding.c
+++ b/lib/decoding.c
@@ -46,7 +46,17 @@ _asn1_error_description_tag_error(node_asn *node,char *ErrorDescription)
 
 }
 
-  
+/**
+ * asn1_get_length_der:
+ * @der: DER data to decode.
+ * @der_len: Length of DER data to decode.
+ * @len: Output variable containing the length of the DER length field.
+ *
+ * Extract a length field from DER data.
+ *
+ * Return value: Return the decoded length value, or -1 on indefinite
+ *   length, or -2 when the value was too big.
+ **/
 signed long
 asn1_get_length_der(const unsigned char *der, int der_len, int  *len)
 {
@@ -69,10 +79,11 @@ asn1_get_length_der(const unsigned char *der, int der_len, int  *len)
       ans=0;
       while(punt<=k && punt < der_len) {
        unsigned long last = ans;
-         ans=ans*256+der[punt++];
-        if (ans < last)
-          /* we wrapped around, no bignum support... */
-          return -2;
+
+       ans=ans*256+der[punt++];
+       if (ans < last)
+         /* we wrapped around, no bignum support... */
+         return -2;
       }
     }
     else{  /* indefinite length method */