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wireaddr_internal: new type for where we can also use a local socket.

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This was something @icota implemented, but it fits logically into this
cleanup series.  We create a new type which is the internal generalization
of a wireaddr (which is defined by the spec), and add a case here for
a socket name.

Based-on-the-true-story-by: @icota
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-05-07 13:59:21 +09:30
committed by Christian Decker
parent e6c678e5df
commit 6b2282fc1d
4 changed files with 131 additions and 0 deletions
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27
common/wireaddr.h
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@@ -10,6 +10,7 @@ struct in6_addr;
struct in_addr;
struct sockaddr_in6;
struct sockaddr_in;
struct sockaddr_un;
/* BOLT #7:
*
@@ -74,4 +75,30 @@ void wireaddr_from_ipv6(struct wireaddr *addr,
bool wireaddr_to_ipv4(const struct wireaddr *addr, struct sockaddr_in *s4);
bool wireaddr_to_ipv6(const struct wireaddr *addr, struct sockaddr_in6 *s6);
enum wireaddr_internal_type {
ADDR_INTERNAL_SOCKNAME,
ADDR_INTERNAL_WIREADDR,
};
/* For internal use, where we can also supply a local socket, wildcard. */
struct wireaddr_internal {
enum wireaddr_internal_type itype;
union {
struct wireaddr wireaddr;
char sockname[108];
} u;
};
bool parse_wireaddr_internal(const char *arg, struct wireaddr_internal *addr, u16 port, const char **err_msg);
void towire_wireaddr_internal(u8 **pptr,
const struct wireaddr_internal *addr);
bool fromwire_wireaddr_internal(const u8 **cursor, size_t *max,
struct wireaddr_internal *addr);
char *fmt_wireaddr_internal(const tal_t *ctx,
const struct wireaddr_internal *a);
void wireaddr_from_sockname(struct wireaddr_internal *addr,
const char *sockname);
bool wireaddr_to_sockname(const struct wireaddr_internal *addr,
struct sockaddr_un *sun);
#endif /* LIGHTNING_COMMON_WIREADDR_H */