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c0d8db4d9e
Add const to read-only api calls. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: David Lamparter <equinox@opensourcerouting.org> (cherry picked from commit 81b139bdd530adda045d22a4daf0054b89703dab)
119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/*
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* Socket union header.
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* Copyright (c) 1997 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Zebra; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _ZEBRA_SOCKUNION_H
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#define _ZEBRA_SOCKUNION_H
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#include "privs.h"
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union sockunion
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{
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struct sockaddr sa;
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struct sockaddr_in sin;
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struct sockaddr_in6 sin6;
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};
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enum connect_result
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{
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connect_error,
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connect_success,
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connect_in_progress
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};
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/* Default address family. */
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#ifdef HAVE_IPV6
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#define AF_INET_UNION AF_INET6
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#else
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#define AF_INET_UNION AF_INET
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#endif
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/* Sockunion address string length. Same as INET6_ADDRSTRLEN. */
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#define SU_ADDRSTRLEN 46
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/* Macro to set link local index to the IPv6 address. For KAME IPv6
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stack. */
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#ifdef KAME
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#define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3])
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#define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
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do { \
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(a).s6_addr[2] = ((i) >> 8) & 0xff; \
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(a).s6_addr[3] = (i) & 0xff; \
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} while (0)
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#else
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#define IN6_LINKLOCAL_IFINDEX(a)
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#define SET_IN6_LINKLOCAL_IFINDEX(a, i)
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#endif /* KAME */
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#define sockunion_family(X) (X)->sa.sa_family
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#define sockunion2ip(X) (X)->sin.sin_addr.s_addr
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/* Prototypes. */
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extern int str2sockunion (const char *, union sockunion *);
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extern const char *sockunion2str (const union sockunion *, char *, size_t);
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extern int sockunion_cmp (const union sockunion *, const union sockunion *);
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extern int sockunion_same (const union sockunion *, const union sockunion *);
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extern unsigned int sockunion_hash (const union sockunion *);
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extern size_t family2addrsize(int family);
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extern size_t sockunion_get_addrlen(const union sockunion *);
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extern const u_char *sockunion_get_addr(const union sockunion *);
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extern void sockunion_set(union sockunion *, int family, const u_char *addr, size_t bytes);
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extern union sockunion *sockunion_str2su (const char *str);
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extern int sockunion_accept (int sock, union sockunion *);
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extern int sockunion_stream_socket (union sockunion *);
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extern int sockopt_reuseaddr (int);
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extern int sockopt_reuseport (int);
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extern int sockopt_v6only (int family, int sock);
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extern int sockunion_bind (int sock, union sockunion *,
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unsigned short, union sockunion *);
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extern int sockopt_ttl (int family, int sock, int ttl);
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extern int sockopt_minttl (int family, int sock, int minttl);
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extern int sockopt_cork (int sock, int onoff);
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extern int sockopt_mark_default(int sock, int mark, struct zebra_privs_t *);
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extern int sockunion_socket (const union sockunion *su);
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extern const char *inet_sutop (const union sockunion *su, char *str);
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extern enum connect_result sockunion_connect (int fd, const union sockunion *su,
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unsigned short port,
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unsigned int);
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extern union sockunion *sockunion_getsockname (int);
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extern union sockunion *sockunion_getpeername (int);
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extern union sockunion *sockunion_dup (const union sockunion *);
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extern void sockunion_free (union sockunion *);
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extern void sockunion_init (union sockunion *);
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#ifndef HAVE_INET_NTOP
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extern const char * inet_ntop (int family, const void *addrptr,
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char *strptr, size_t len);
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#endif /* HAVE_INET_NTOP */
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#ifndef HAVE_INET_PTON
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extern int inet_pton (int family, const char *strptr, void *addrptr);
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#endif /* HAVE_INET_PTON */
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#ifndef HAVE_INET_ATON
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extern int inet_aton (const char *cp, struct in_addr *inaddr);
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#endif
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#endif /* _ZEBRA_SOCKUNION_H */
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