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Annotation of embedaddon/quagga/lib/sockunion.h, revision 1.1.1.3

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: #define sockunion_family(X)  (X)->sa.sa_family
                     82: 
1.1.1.3 ! misho      83: #define sockunion2ip(X)      (X)->sin.sin_addr.s_addr
        !            84: 
1.1       misho      85: /* Prototypes. */
                     86: extern int str2sockunion (const char *, union sockunion *);
                     87: extern const char *sockunion2str (union sockunion *, char *, size_t);
                     88: extern int sockunion_cmp (union sockunion *, union sockunion *);
                     89: extern int sockunion_same (union sockunion *, union sockunion *);
                     90: 
                     91: extern union sockunion *sockunion_str2su (const char *str);
                     92: extern int sockunion_accept (int sock, union sockunion *);
                     93: extern int sockunion_stream_socket (union sockunion *);
                     94: extern int sockopt_reuseaddr (int);
                     95: extern int sockopt_reuseport (int);
1.1.1.2   misho      96: extern int sockopt_v6only (int family, int sock);
1.1       misho      97: extern int sockunion_bind (int sock, union sockunion *, 
                     98:                            unsigned short, union sockunion *);
                     99: extern int sockopt_ttl (int family, int sock, int ttl);
                    100: extern int sockopt_minttl (int family, int sock, int minttl);
                    101: extern int sockopt_cork (int sock, int onoff);
                    102: extern int sockunion_socket (union sockunion *su);
                    103: extern const char *inet_sutop (union sockunion *su, char *str);
                    104: extern enum connect_result sockunion_connect (int fd, union sockunion *su, 
                    105:                                               unsigned short port,
                    106:                                               unsigned int);
                    107: extern union sockunion *sockunion_getsockname (int);
                    108: extern union sockunion *sockunion_getpeername (int);
                    109: extern union sockunion *sockunion_dup (union sockunion *);
                    110: extern void sockunion_free (union sockunion *);
                    111: 
                    112: #ifndef HAVE_INET_NTOP
                    113: extern const char * inet_ntop (int family, const void *addrptr, 
                    114:                                char *strptr, size_t len);
                    115: #endif /* HAVE_INET_NTOP */
                    116: 
                    117: #ifndef HAVE_INET_PTON
                    118: extern int inet_pton (int family, const char *strptr, void *addrptr);
                    119: #endif /* HAVE_INET_PTON */
                    120: 
                    121: #ifndef HAVE_INET_ATON
                    122: extern int inet_aton (const char *cp, struct in_addr *inaddr);
                    123: #endif
                    124: 
                    125: #endif /* _ZEBRA_SOCKUNION_H */