/**
* collectd - src/libcollectdclient/network.c
- * Copyright (C) 2005-2012 Florian octo Forster
+ * Copyright (C) 2005-2015 Florian Forster
+ * Copyright (C) 2010 Max Henkel
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Florian octo Forster <octo at collectd.org>
+ * Florian Forster <octo at collectd.org>
+ * Max Henkel <henkel at gmx.at>
**/
+#include "collectd.h"
+
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netdb.h>
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+
#include "collectd/network.h"
#include "collectd/network_buffer.h"
return (0);
close (srv->fd);
+ srv->fd = -1;
free (srv->sa);
srv->sa = NULL;
srv->sa_len = 0;
next = srv->next;
- if (srv->fd >= 0)
- {
- close (srv->fd);
- srv->fd = -1;
- }
-
free (srv->node);
free (srv->service);
free (srv->username);
memset (buffer, 0, sizeof (buffer));
buffer_size = sizeof (buffer);
- lcc_network_buffer_finalize (srv->buffer);
+ status = lcc_network_buffer_finalize (srv->buffer);
+ if (status != 0)
+ {
+ lcc_network_buffer_initialize (srv->buffer);
+ return (status);
+ }
+
status = lcc_network_buffer_get (srv->buffer, buffer, &buffer_size);
lcc_network_buffer_initialize (srv->buffer);
return (0);
} /* }}} int lcc_server_set_ttl */
+int lcc_server_set_interface (lcc_server_t *srv, char const *interface) /* {{{ */
+{
+ unsigned int if_index;
+ int status;
+
+ if ((srv == NULL) || (interface == NULL))
+ return (EINVAL);
+
+ if_index = if_nametoindex (interface);
+ if (if_index == 0)
+ return (ENOENT);
+
+ /* IPv4 multicast */
+ if (srv->sa->sa_family == AF_INET)
+ {
+ struct sockaddr_in *addr = (struct sockaddr_in *) srv->sa;
+
+ if (IN_MULTICAST (ntohl (addr->sin_addr.s_addr)))
+ {
+#if HAVE_STRUCT_IP_MREQN_IMR_IFINDEX
+ /* If possible, use the "ip_mreqn" structure which has
+ * an "interface index" member. Using the interface
+ * index is preferred here, because of its similarity
+ * to the way IPv6 handles this. Unfortunately, it
+ * appears not to be portable. */
+ struct ip_mreqn mreq;
+
+ memset (&mreq, 0, sizeof (mreq));
+ mreq.imr_multiaddr.s_addr = addr->sin_addr.s_addr;
+ mreq.imr_address.s_addr = ntohl (INADDR_ANY);
+ mreq.imr_ifindex = (int) if_index;
+#else
+ struct ip_mreq mreq;
+
+ memset (&mreq, 0, sizeof (mreq));
+ mreq.imr_multiaddr.s_addr = addr->sin_addr.s_addr;
+ mreq.imr_interface.s_addr = ntohl (INADDR_ANY);
+#endif
+
+ status = setsockopt (srv->fd, IPPROTO_IP, IP_MULTICAST_IF,
+ &mreq, sizeof (mreq));
+ if (status != 0)
+ return (status);
+
+ return (0);
+ }
+ }
+
+ /* IPv6 multicast */
+ if (srv->sa->sa_family == AF_INET6)
+ {
+ struct sockaddr_in6 *addr = (struct sockaddr_in6 *) srv->sa;
+
+ if (IN6_IS_ADDR_MULTICAST (&addr->sin6_addr))
+ {
+ status = setsockopt (srv->fd, IPPROTO_IPV6, IPV6_MULTICAST_IF,
+ &if_index, sizeof (if_index));
+ if (status != 0)
+ return (status);
+
+ return (0);
+ }
+ }
+
+ /* else: Not a multicast interface. */
+#if defined(SO_BINDTODEVICE)
+ status = setsockopt (srv->fd, SOL_SOCKET, SO_BINDTODEVICE, interface,
+ (socklen_t) (strlen (interface) + 1));
+ if (status != 0)
+ return (-1);
+#endif
+
+ return (0);
+} /* }}} int lcc_server_set_interface */
+
int lcc_server_set_security_level (lcc_server_t *srv, /* {{{ */
lcc_security_level_t level,
const char *username, const char *password)