Virgin import of ntpd 4.2.0

1 files changed, 159 insertions, 0 deletions

diff --git a/contrib/ntp/libisc/interfaceiter.c b/contrib/ntp/libisc/interfaceiter.c
new file mode 100644
index 000000000000..37af9f38ccff
--- /dev/null
+++ b/contrib/ntp/libisc/interfaceiter.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 1999-2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: interfaceiter.c,v 1.27 2002/07/02 05:51:43 marka Exp $ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>		/* Required for ifiter_ioctl.c. */
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <isc/interfaceiter.h>
+#include <isc/magic.h>
+#include <isc/mem.h>
+#include <isc/msgs.h>
+#include <isc/net.h>
+#include <isc/result.h>
+#include <isc/strerror.h>
+#include <isc/string.h>
+#include <isc/types.h>
+#include <isc/util.h>
+
+/* Must follow <isc/net.h>. */
+#ifdef HAVE_NET_IF6_H
+#include <net/if6.h>
+#endif
+#include <net/if.h>
+
+/* Common utility functions */
+
+/*
+ * Extract the network address part from a "struct sockaddr".
+ *
+ * The address family is given explicity
+ * instead of using src->sa_family, because the latter does not work
+ * for copying a network mask obtained by SIOCGIFNETMASK (it does
+ * not have a valid address family).
+ */
+
+static void
+get_addr(unsigned int family, isc_netaddr_t *dst, struct sockaddr *src) {
+	dst->family = family;
+	switch (family) {
+	case AF_INET:
+		memcpy(&dst->type.in,
+		       &((struct sockaddr_in *) src)->sin_addr,
+		       sizeof(struct in_addr));
+		break;
+	case	AF_INET6:
+		memcpy(&dst->type.in6,
+		       &((struct sockaddr_in6 *) src)->sin6_addr,
+		       sizeof(struct in6_addr));
+		break;
+	default:
+		INSIST(0);
+		break;
+	}
+}
+
+/*
+ * Include system-dependent code.
+ */
+
+#if HAVE_IFLIST_SYSCTL
+#include "ifiter_sysctl.c"
+#else
+#include "ifiter_ioctl.c"
+#endif
+
+/*
+ * The remaining code is common to the sysctl and ioctl case.
+ */
+
+isc_result_t
+isc_interfaceiter_current(isc_interfaceiter_t *iter,
+			  isc_interface_t *ifdata)
+{
+	REQUIRE(iter->result == ISC_R_SUCCESS);
+	memcpy(ifdata, &iter->current, sizeof(*ifdata));
+	return (ISC_R_SUCCESS);
+}
+
+isc_result_t
+isc_interfaceiter_first(isc_interfaceiter_t *iter) {
+	isc_result_t result;
+
+	REQUIRE(VALID_IFITER(iter));
+
+	iter->pos = 0;
+#ifdef HAVE_TRUCLUSTER
+	iter->clua_context = 0;
+#endif
+	for (;;) {
+		result = internal_current(iter);
+		if (result != ISC_R_IGNORE)
+			break;
+		result = internal_next(iter);
+		if (result != ISC_R_SUCCESS)
+			break;
+	}
+	iter->result = result;
+	return (result);
+}
+
+isc_result_t
+isc_interfaceiter_next(isc_interfaceiter_t *iter) {
+	isc_result_t result;
+
+	REQUIRE(VALID_IFITER(iter));
+	REQUIRE(iter->result == ISC_R_SUCCESS);
+
+	for (;;) {
+		result = internal_next(iter);
+		if (result != ISC_R_SUCCESS)
+			break;
+		result = internal_current(iter);
+		if (result != ISC_R_IGNORE)
+			break;
+	}
+	iter->result = result;
+	return (result);
+}
+
+void
+isc_interfaceiter_destroy(isc_interfaceiter_t **iterp)
+{
+	isc_interfaceiter_t *iter;
+	REQUIRE(iterp != NULL);
+	iter = *iterp;
+	REQUIRE(VALID_IFITER(iter));
+
+	internal_destroy(iter);
+	isc_mem_put(iter->mctx, iter->buf, iter->bufsize);
+
+	iter->magic = 0;
+	isc_mem_put(iter->mctx, iter, sizeof(*iter));
+	*iterp = NULL;
+}