Make policies_log_first_redundant_entry take a const smartlist_t *

Also fixup code style.

src/or/policies.c

@@ -1119,25 +1119,22 @@ policies_parse_exit_policy_reject_private(
   }
 }
 
-#define DEFAULT_EXIT_POLICY                                         \
-  "reject *:25,reject *:119,reject *:135-139,reject *:445,"         \
-  "reject *:563,reject *:1214,reject *:4661-4666,"                  \
-  "reject *:6346-6429,reject *:6699,reject *:6881-6999,accept *:*"
-
 /**
- * Iterates through *<b>dest</b> and logs a warning with first 
+ * Iterates through <b>dest</b> and logs a warning with first
  * redundant entry if found
  */
-static void 
-policies_log_first_redundant_entry(smartlist_t** dest) {
+static void
+policies_log_first_redundant_entry(const smartlist_t* dest)
+{
   int found_final_effective_entry = 0;
   int first_redundant_entry = 0;
-  for (int i = 0; i < smartlist_len(*dest); ++i) {
+  tor_assert(dest);
+  for (int i = 0; i < smartlist_len(dest); ++i) {
     sa_family_t family;
     addr_policy_t *p;
     int found_ipv4_wildcard = 0, found_ipv6_wildcard = 0;
 
-    p = smartlist_get(*dest, i);
+    p = smartlist_get(dest, i);
 
     /* Look for accept/reject *[4|6|]:* entires */
     if (p->prt_min <= 1 && p->prt_max == 65535 && p->maskbits == 0) {
@@ -1160,7 +1157,7 @@ policies_log_first_redundant_entry(smartlist_t** dest) {
     if (found_ipv4_wildcard && found_ipv6_wildcard) {
       found_final_effective_entry = 1;
       /* if we're not on the final entry in the list */
-      if (i < smartlist_len(*dest) - 1) {
+      if (i < smartlist_len(dest) - 1) {
         first_redundant_entry = i + 1;
       }
       break;
@@ -1174,8 +1171,8 @@ policies_log_first_redundant_entry(smartlist_t** dest) {
      * which contains a max-length IPv6 address, plus 24 characters. */
     char line[TOR_ADDR_BUF_LEN + 32];
 
-    tor_assert(first_redundant_entry < smartlist_len(*dest));
-    p = smartlist_get(*dest, first_redundant_entry);
+    tor_assert(first_redundant_entry < smartlist_len(dest));
+    p = smartlist_get(dest, first_redundant_entry);
     /* since we've already parsed the policy into an addr_policy_t struct,
      * we might not log exactly what the user typed in */
     policy_write_item(line, TOR_ADDR_BUF_LEN + 32, p, 0);
@@ -1187,6 +1184,11 @@ policies_log_first_redundant_entry(smartlist_t** dest) {
   }
 }
 
+#define DEFAULT_EXIT_POLICY                                         \
+  "reject *:25,reject *:119,reject *:135-139,reject *:445,"         \
+  "reject *:563,reject *:1214,reject *:4661-4666,"                  \
+  "reject *:6346-6429,reject *:6699,reject *:6881-6999,accept *:*"
+
 /** Parse the exit policy <b>cfg</b> into the linked list *<b>dest</b>.
  *
  * If <b>ipv6_exit</b> is false, prepend "reject *6:*" to the policy.
@@ -1235,7 +1237,7 @@ policies_parse_exit_policy_internal(config_line_t *cfg,
   /* Before we add the default policy and final rejects, check to see if
    * there are any lines after accept *:* or reject *:*. These lines have no
    * effect, and are most likely an error. */
-   policies_log_first_redundant_entry(dest);
+   policies_log_first_redundant_entry(*dest);
 
   if (add_default_policy) {
     append_exit_policy_string(dest, DEFAULT_EXIT_POLICY);