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-rw-r--r--addr.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/addr.h b/addr.h
new file mode 100644
index 0000000..180e9fd
--- /dev/null
+++ b/addr.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org>
+ *
+ * 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
+ */
+
+/* Address handling routines */
+
+#ifndef _ADDR_H
+#define _ADDR_H
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+struct xaddr {
+ sa_family_t af;
+ union {
+ struct in_addr v4;
+ struct in6_addr v6;
+ u_int8_t addr8[16];
+ u_int16_t addr16[8];
+ u_int32_t addr32[4];
+ } xa; /* 128-bit address */
+ u_int32_t scope_id; /* iface scope id for v6 */
+#define v4 xa.v4
+#define v6 xa.v6
+#define addr8 xa.addr8
+#define addr16 xa.addr16
+#define addr32 xa.addr32
+};
+
+int addr_unicast_masklen(int af);
+int addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa,
+ socklen_t *len, u_int16_t port);
+int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa);
+int addr_netmask(int af, u_int l, struct xaddr *n);
+int addr_hostmask(int af, u_int l, struct xaddr *n);
+int addr_invert(struct xaddr *n);
+int addr_pton(const char *p, struct xaddr *n);
+int addr_sa_pton(const char *h, const char *s, struct sockaddr *sa,
+ socklen_t slen);
+int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l);
+int addr_ntop(const struct xaddr *n, char *p, size_t len);
+int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
+int addr_or(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
+int addr_cmp(const struct xaddr *a, const struct xaddr *b);
+int addr_is_all0s(const struct xaddr *n);
+int addr_host_is_all0s(const struct xaddr *n, u_int masklen);
+int addr_host_to_all0s(struct xaddr *a, u_int masklen);
+int addr_host_to_all1s(struct xaddr *a, u_int masklen);
+int addr_netmatch(const struct xaddr *host, const struct xaddr *net,
+ u_int masklen);
+void addr_increment(struct xaddr *a);
+#endif /* _ADDR_H */