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Annotation of embedaddon/quagga/lib/sockunion.h, revision 1.1.1.2

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);
1.1.1.2 ! misho     102: extern int sockopt_v6only (int family, int sock);
1.1       misho     103: extern int sockunion_bind (int sock, union sockunion *, 
                    104:                            unsigned short, union sockunion *);
                    105: extern int sockopt_ttl (int family, int sock, int ttl);
                    106: extern int sockopt_minttl (int family, int sock, int minttl);
                    107: extern int sockopt_cork (int sock, int onoff);
                    108: extern int sockunion_socket (union sockunion *su);
                    109: extern const char *inet_sutop (union sockunion *su, char *str);
                    110: extern enum connect_result sockunion_connect (int fd, union sockunion *su, 
                    111:                                               unsigned short port,
                    112:                                               unsigned int);
                    113: extern union sockunion *sockunion_getsockname (int);
                    114: extern union sockunion *sockunion_getpeername (int);
                    115: extern union sockunion *sockunion_dup (union sockunion *);
                    116: extern void sockunion_free (union sockunion *);
                    117: 
                    118: #ifndef HAVE_INET_NTOP
                    119: extern const char * inet_ntop (int family, const void *addrptr, 
                    120:                                char *strptr, size_t len);
                    121: #endif /* HAVE_INET_NTOP */
                    122: 
                    123: #ifndef HAVE_INET_PTON
                    124: extern int inet_pton (int family, const char *strptr, void *addrptr);
                    125: #endif /* HAVE_INET_PTON */
                    126: 
                    127: #ifndef HAVE_INET_ATON
                    128: extern int inet_aton (const char *cp, struct in_addr *inaddr);
                    129: #endif
                    130: 
                    131: #endif /* _ZEBRA_SOCKUNION_H */