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Annotation of src/usr.bin/ssh/addr.h, Revision 1.2

1.1       dtucker     1: /*
                      2:  * Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org>
                      3:  *
                      4:  * Permission to use, copy, modify, and distribute this software for any
                      5:  * purpose with or without fee is hereby granted, provided that the above
                      6:  * copyright notice and this permission notice appear in all copies.
                      7:  *
                      8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                      9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     15:  */
                     16:
                     17: /* Address handling routines */
                     18:
                     19: #ifndef _ADDR_H
                     20: #define _ADDR_H
                     21:
                     22: #include <sys/socket.h>
                     23: #include <netinet/in.h>
                     24:
                     25: struct xaddr {
                     26:        sa_family_t     af;
                     27:        union {
                     28:                struct in_addr          v4;
                     29:                struct in6_addr         v6;
                     30:                u_int8_t                addr8[16];
                     31:                u_int16_t               addr16[8];
                     32:                u_int32_t               addr32[4];
                     33:        } xa;               /* 128-bit address */
                     34:        u_int32_t       scope_id;       /* iface scope id for v6 */
                     35: #define v4     xa.v4
                     36: #define v6     xa.v6
                     37: #define addr8  xa.addr8
                     38: #define addr16 xa.addr16
                     39: #define addr32 xa.addr32
                     40: };
                     41:
                     42: int addr_unicast_masklen(int af);
                     43: int addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa,
                     44:     socklen_t *len, u_int16_t port);
                     45: int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa);
                     46: int addr_netmask(int af, u_int l, struct xaddr *n);
                     47: int addr_hostmask(int af, u_int l, struct xaddr *n);
                     48: int addr_invert(struct xaddr *n);
                     49: int addr_pton(const char *p, struct xaddr *n);
                     50: int addr_sa_pton(const char *h, const char *s, struct sockaddr *sa,
                     51:     socklen_t slen);
                     52: int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l);
                     53: int addr_ntop(const struct xaddr *n, char *p, size_t len);
                     54: int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
1.2     ! djm        55: int addr_or(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
1.1       dtucker    56: int addr_cmp(const struct xaddr *a, const struct xaddr *b);
                     57: int addr_is_all0s(const struct xaddr *n);
                     58: int addr_host_is_all0s(const struct xaddr *n, u_int masklen);
1.2     ! djm        59: int addr_host_to_all0s(struct xaddr *a, u_int masklen);
        !            60: int addr_host_to_all1s(struct xaddr *a, u_int masklen);
1.1       dtucker    61: int addr_netmatch(const struct xaddr *host, const struct xaddr *net,
                     62:     u_int masklen);
1.2     ! djm        63: void addr_increment(struct xaddr *a);
1.1       dtucker    64: #endif /* _ADDR_H */