manual: Mention that clang is also a supported compiler.

[paraslash.git] / acl.c

diff --git a/acl.c b/acl.c
index 14edcf7d87c08617e175e0fff44e3c572e305160..132350dd1bfe033568584ccd4641e388fa011bcf 100644 (file)
--- a/acl.c
+++ b/acl.c
@@ -1,11 +1,13 @@
 /*
- * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2011 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
 
 /** \file acl.c Access control lists for paraslash senders. */
 
+#include <regex.h>
+
 #include "para.h"
 #include "error.h"
 #include "string.h"
@@ -90,13 +92,17 @@ static void acl_add_entry(struct list_head *acl, char *addr, int netmask)
  * \param addr The address to delete.
  * \param netmask The netmask of the entry to be removed from the list.
  */
-static void acl_del_entry(struct list_head *acl, char *addr, int netmask)
+static void acl_del_entry(struct list_head *acl, char *addr, unsigned netmask)
 {
        struct access_info *ai, *tmp;
+       struct in_addr to_delete;
+
+       inet_pton(AF_INET, addr, &to_delete);
 
        list_for_each_entry_safe(ai, tmp, acl, node) {
-               if (!strcmp(addr, inet_ntoa(ai->addr)) &&
-                               ai->netmask == netmask) {
+
+               if (v4_addr_match(to_delete.s_addr, ai->addr.s_addr,
+                                       PARA_MIN(netmask, ai->netmask))) {
                        PARA_NOTICE_LOG("removing %s/%i from access list\n",
                                        addr, ai->netmask);
                        list_del(&ai->node);
@@ -136,30 +142,16 @@ char *acl_get_contents(struct list_head *acl)
  */
 void acl_init(struct list_head *acl, char * const *acl_info, int num)
 {
-       int i;
+       char    addr[16];
+       int     mask, i;
 
        INIT_LIST_HEAD(acl);
-       for (i = 0; i < num; i++) {
-               char *arg = para_strdup(acl_info[i]);
-               char *p = strchr(arg, '/');
-               int netmask;
-
-               if (!p)
-                       goto err;
-               *p = '\0';
-               if (!is_valid_ipv4_address(arg))
-                       goto err;
-               netmask = atoi(++p);
-               if (netmask < 0 || netmask > 32)
-                       goto err;
-               acl_add_entry(acl, arg, netmask);
-               goto success;
-err:
-               PARA_CRIT_LOG("syntax error: %s\n", acl_info[i]);
-success:
-               free(arg);
-               continue;
-       }
+       for (i = 0; i < num; i++)
+               if (parse_cidr(acl_info[i], addr, sizeof(addr), &mask) == NULL)
+                       PARA_CRIT_LOG("ACL syntax error: %s, ignoring\n",
+                                     acl_info[i]);
+               else
+                       acl_add_entry(acl, addr, mask);
 }
 
 /**