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Annotation of embedaddon/quagga/lib/sockunion.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Socket union header.
        !             3:  * Copyright (c) 1997 Kunihiro Ishiguro
        !             4:  *
        !             5:  * This file is part of GNU Zebra.
        !             6:  *
        !             7:  * GNU Zebra is free software; you can redistribute it and/or modify it
        !             8:  * under the terms of the GNU General Public License as published by the
        !             9:  * Free Software Foundation; either version 2, or (at your option) any
        !            10:  * later version.
        !            11:  *
        !            12:  * GNU Zebra is distributed in the hope that it will be useful, but
        !            13:  * WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            15:  * General Public License for more details.
        !            16:  *
        !            17:  * You should have received a copy of the GNU General Public License
        !            18:  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
        !            19:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
        !            20:  * 02111-1307, USA.  
        !            21:  */
        !            22: 
        !            23: #ifndef _ZEBRA_SOCKUNION_H
        !            24: #define _ZEBRA_SOCKUNION_H
        !            25: 
        !            26: #if 0
        !            27: union sockunion {
        !            28:   struct sockinet {
        !            29:     u_char si_len;
        !            30:     u_char si_family;
        !            31:     u_short si_port;
        !            32:   } su_si;
        !            33:   struct sockaddr_in  su_sin;
        !            34:   struct sockaddr_in6 su_sin6;
        !            35: };
        !            36: #define su_len                su_si.si_len
        !            37: #define su_family     su_si.si_family
        !            38: #define su_port               su_si.si_port
        !            39: #endif /* 0 */
        !            40: 
        !            41: union sockunion 
        !            42: {
        !            43:   struct sockaddr sa;
        !            44:   struct sockaddr_in sin;
        !            45: #ifdef HAVE_IPV6
        !            46:   struct sockaddr_in6 sin6;
        !            47: #endif /* HAVE_IPV6 */
        !            48: };
        !            49: 
        !            50: enum connect_result
        !            51: {
        !            52:   connect_error,
        !            53:   connect_success,
        !            54:   connect_in_progress
        !            55: };
        !            56: 
        !            57: /* Default address family. */
        !            58: #ifdef HAVE_IPV6
        !            59: #define AF_INET_UNION AF_INET6
        !            60: #else
        !            61: #define AF_INET_UNION AF_INET
        !            62: #endif
        !            63: 
        !            64: /* Sockunion address string length.  Same as INET6_ADDRSTRLEN. */
        !            65: #define SU_ADDRSTRLEN 46
        !            66: 
        !            67: /* Macro to set link local index to the IPv6 address.  For KAME IPv6
        !            68:    stack. */
        !            69: #ifdef KAME
        !            70: #define        IN6_LINKLOCAL_IFINDEX(a)  ((a).s6_addr[2] << 8 | (a).s6_addr[3])
        !            71: #define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
        !            72:   do { \
        !            73:     (a).s6_addr[2] = ((i) >> 8) & 0xff; \
        !            74:     (a).s6_addr[3] = (i) & 0xff; \
        !            75:   } while (0)
        !            76: #else
        !            77: #define        IN6_LINKLOCAL_IFINDEX(a)
        !            78: #define SET_IN6_LINKLOCAL_IFINDEX(a, i)
        !            79: #endif /* KAME */
        !            80: 
        !            81: /* shortcut macro to specify address field of struct sockaddr */
        !            82: #define sock2ip(X)   (((struct sockaddr_in *)(X))->sin_addr.s_addr)
        !            83: #ifdef HAVE_IPV6
        !            84: #define sock2ip6(X)  (((struct sockaddr_in6 *)(X))->sin6_addr.s6_addr)
        !            85: #endif /* HAVE_IPV6 */
        !            86: 
        !            87: #define sockunion_family(X)  (X)->sa.sa_family
        !            88: 
        !            89: /* Prototypes. */
        !            90: extern int str2sockunion (const char *, union sockunion *);
        !            91: extern const char *sockunion2str (union sockunion *, char *, size_t);
        !            92: extern int sockunion_cmp (union sockunion *, union sockunion *);
        !            93: extern int sockunion_same (union sockunion *, union sockunion *);
        !            94: 
        !            95: extern char *sockunion_su2str (union sockunion *su);
        !            96: extern union sockunion *sockunion_str2su (const char *str);
        !            97: extern struct in_addr sockunion_get_in_addr (union sockunion *su);
        !            98: extern int sockunion_accept (int sock, union sockunion *);
        !            99: extern int sockunion_stream_socket (union sockunion *);
        !           100: extern int sockopt_reuseaddr (int);
        !           101: extern int sockopt_reuseport (int);
        !           102: extern int sockunion_bind (int sock, union sockunion *, 
        !           103:                            unsigned short, union sockunion *);
        !           104: extern int sockopt_ttl (int family, int sock, int ttl);
        !           105: extern int sockopt_minttl (int family, int sock, int minttl);
        !           106: extern int sockopt_cork (int sock, int onoff);
        !           107: extern int sockunion_socket (union sockunion *su);
        !           108: extern const char *inet_sutop (union sockunion *su, char *str);
        !           109: extern enum connect_result sockunion_connect (int fd, union sockunion *su, 
        !           110:                                               unsigned short port,
        !           111:                                               unsigned int);
        !           112: extern union sockunion *sockunion_getsockname (int);
        !           113: extern union sockunion *sockunion_getpeername (int);
        !           114: extern union sockunion *sockunion_dup (union sockunion *);
        !           115: extern void sockunion_free (union sockunion *);
        !           116: 
        !           117: #ifndef HAVE_INET_NTOP
        !           118: extern const char * inet_ntop (int family, const void *addrptr, 
        !           119:                                char *strptr, size_t len);
        !           120: #endif /* HAVE_INET_NTOP */
        !           121: 
        !           122: #ifndef HAVE_INET_PTON
        !           123: extern int inet_pton (int family, const char *strptr, void *addrptr);
        !           124: #endif /* HAVE_INET_PTON */
        !           125: 
        !           126: #ifndef HAVE_INET_ATON
        !           127: extern int inet_aton (const char *cp, struct in_addr *inaddr);
        !           128: #endif
        !           129: 
        !           130: #endif /* _ZEBRA_SOCKUNION_H */