1 files changed, 8 insertions, 6 deletions
diff --git a/src/conf.c b/src/conf.c
index 585cec8..3339d69 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -1719,17 +1719,19 @@ conf_error_report(const char *msg)
  * Originally written by Dianora (Diane, db@db.net)
  */
 time_t
-valid_tkline(const char *p, int minutes)
+valid_tkline(const char *data, const int minutes)
 {
+  const unsigned char *p = (const unsigned char *)data;
+  unsigned char tmpch = '\0';
   time_t result = 0;
 
-  for (; *p; ++p)
+  while ((tmpch = *p++))
   {
-    if (!IsDigit(*p))
+    if (!IsDigit(tmpch))
       return 0;
 
     result *= 10;
-    result += (*p & 0xF);
+    result += (tmpch & 0xF);
   }
 
   /*
@@ -1745,12 +1747,12 @@ valid_tkline(const char *p, int minutes)
    * of this calculation
    */
   if (!minutes)
-    result = result / (time_t)60; 
+    result = result / 60; 
 
   if (result > MAX_TDKLINE_TIME)
     result = MAX_TDKLINE_TIME;
 
-  result = result * (time_t)60;  /* turn it into seconds */
+  result = result * 60;  /* turn it into seconds */
 
   return result;
 }