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lightningd/status: reuse wire code for sending status.

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Suggested-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2017-03-20 07:02:44 +10:30
parent 8be18ccfa1
commit d2e19c3735
1 changed files with 7 additions and 14 deletions
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21
lightningd/status.c
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@ -58,24 +58,17 @@ void status_send_sync(const u8 *p)
static void status_send_with_hdr(u16 type, const void *p, size_t len)
{
be16 be_type, be_len;
if (too_large(len + sizeof(be_type), type))
len = 65535 - sizeof(be_type);
be_type = cpu_to_be16(type);
be_len = cpu_to_be16(len + sizeof(be_type));
assert(be16_to_cpu(be_len) == len + sizeof(be_type));
u8 *msg = tal_arr(NULL, u8, 0);
towire_u16(&msg, type);
towire(&msg, p, len);
if (too_large(tal_len(msg), type))
tal_resize(&msg, 65535);
if (status_fd >= 0) {
if (!write_all(status_fd, &be_len, sizeof(be_len))
|| !write_all(status_fd, &be_type, sizeof(be_type))
|| !write_all(status_fd, p, len))
if (!wire_sync_write(status_fd, msg))
err(1, "Writing out status %u len %zu", type, len);
tal_free(msg);
} else {
u8 *msg = tal_arr(NULL, u8, sizeof(be_type) + len);
memcpy(msg, &be_type, sizeof(be_type));
memcpy(msg + sizeof(be_type), p, len);
daemon_conn_send(status_conn, take(msg));
}
}