Provide a fallback if `ICMP6_ECHO_REQUEST' or `ICMP6_ECHO_REPLY' is not defined.

[liboping.git] / src / liboping.c

diff --git a/src/liboping.c b/src/liboping.c
index 21855e1..c521a7d 100644 (file)
--- a/src/liboping.c
+++ b/src/liboping.c
@@ -4,8 +4,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; only version 2 of the License is
+ * applicable.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -288,6 +288,22 @@ static pinghost_t *ping_receive_ipv4 (pinghost_t *ph, char *buffer, size_t buffe
        return (ptr);
 }
 
+#ifndef ICMP6_ECHO_REQUEST
+# ifdef ICMP6_ECHO /* AIX netinet/ip6_icmp.h */
+#  define ICMP6_ECHO_REQUEST ICMP6_ECHO
+# else
+#  define ICMP6_ECHO_REQUEST 128
+# endif
+#endif
+
+#ifndef ICMP6_ECHO_REPLY
+# ifdef ICMP6_ECHOREPLY /* AIX netinet/ip6_icmp.h */
+#  define ICMP6_ECHO_REPLY ICMP6_ECHOREPLY
+# else
+#  define ICMP6_ECHO_REPLY 129
+# endif
+#endif
+
 static pinghost_t *ping_receive_ipv6 (pinghost_t *ph, char *buffer, size_t buffer_len)
 {
        struct icmp6_hdr *icmp_hdr;
@@ -540,7 +556,17 @@ static ssize_t ping_sendto (pingobj_t *obj, pinghost_t *ph,
                        (struct sockaddr *) ph->addr, ph->addrlen);
 
        if (ret < 0)
+       {
+#if defined(EHOSTUNREACH)
+               if (errno == EHOSTUNREACH)
+                       return (0);
+#endif
+#if defined(ENETUNREACH)
+               if (errno == ENETUNREACH)
+                       return (0);
+#endif
                ping_set_error (obj, "sendto", strerror (errno));
+       }
 
        return (ret);
 }
@@ -768,6 +794,7 @@ static pinghost_t *ping_alloc (void)
        ph->addr    = (struct sockaddr_storage *) (ph->timer + 1);
 
        ph->addrlen = sizeof (struct sockaddr_storage);
+       ph->fd      = -1;
        ph->latency = -1.0;
        ph->ident   = ping_get_ident () & 0xFFFF;
 
@@ -776,6 +803,9 @@ static pinghost_t *ping_alloc (void)
 
 static void ping_free (pinghost_t *ph)
 {
+       if (ph->fd >= 0)
+               close (ph->fd);
+       
        if (ph->hostname != NULL)
                free (ph->hostname);
 
@@ -1142,8 +1172,7 @@ int ping_host_add (pingobj_t *obj, const char *host)
 
        if (ph->fd < 0)
        {
-               free (ph->hostname);
-               free (ph);
+               ping_free (ph);
                return (-1);
        }
 
@@ -1182,7 +1211,7 @@ int ping_host_remove (pingobj_t *obj, const char *host)
 
        while (cur != NULL)
        {
-               if (strcasecmp (host, cur->hostname))
+               if (strcasecmp (host, cur->hostname) == 0)
                        break;
 
                pre = cur;
@@ -1200,9 +1229,6 @@ int ping_host_remove (pingobj_t *obj, const char *host)
        else
                pre->next = cur->next;
        
-       if (cur->fd >= 0)
-               close (cur->fd);
-
        ping_free (cur);
 
        return (0);