use unsigned counter for second loop.

diff --git a/src/lib/radius.c b/src/lib/radius.c
index e625581..6ed2635 100644 (file)
--- a/src/lib/radius.c
+++ b/src/lib/radius.c
@@ -1728,7 +1728,7 @@ int rad_tunnel_pwencode(char *passwd, int *pwlen, const char *secret,
        unsigned char   digest[AUTH_VECTOR_LEN];
        char*   salt;
        int     i, n, secretlen;
-       unsigned len;
+       unsigned len, n2;
        
        len = *pwlen;
 
@@ -1778,8 +1778,8 @@ int rad_tunnel_pwencode(char *passwd, int *pwlen, const char *secret,
        secretlen = strlen(secret);
        memcpy(buffer, secret, secretlen);
        
-       for (n = 0; n < len; n+=AUTH_PASS_LEN) {
-               if (!n) {
+       for (n2 = 0; n2 < len; n2+=AUTH_PASS_LEN) {
+               if (!n2) {
                        memcpy(buffer + secretlen, vector, AUTH_VECTOR_LEN);
                        memcpy(buffer + secretlen + AUTH_VECTOR_LEN, salt, 2);
                        librad_md5_calc(digest, buffer, secretlen + AUTH_VECTOR_LEN + 2);
@@ -1790,10 +1790,10 @@ int rad_tunnel_pwencode(char *passwd, int *pwlen, const char *secret,
                }
                
                for (i = 0; i < AUTH_PASS_LEN; i++) {
-                       passwd[i + n] ^= digest[i];
+                       passwd[i + n2] ^= digest[i];
                }
        }
-       passwd[n] = 0;
+       passwd[n2] = 0;
        return 0;
 }