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45 lines
1.1 KiB
45 lines
1.1 KiB
#include <ccan/io/io.h>
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#include <ccan/tal/str/str.h>
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#include <common/crypto_sync.h>
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#include <common/peer_failed.h>
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#include <common/status.h>
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#include <common/wire_error.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <wire/gen_peer_wire.h>
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/* We only support one channel per peer anyway */
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void peer_failed(int peer_fd, struct crypto_state *cs,
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const struct channel_id *channel_id,
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const char *fmt, ...)
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{
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va_list ap;
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const char *errmsg;
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struct channel_id all_channels;
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u8 *msg;
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/* BOLT #1:
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*
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* The channel is referred to by `channel_id` unless `channel_id` is
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* zero (ie. all bytes zero), in which case it refers to all channels.
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*/
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if (!channel_id) {
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memset(&all_channels, 0, sizeof(all_channels));
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channel_id = &all_channels;
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}
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va_start(ap, fmt);
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errmsg = tal_vfmt(NULL, fmt, ap);
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va_end(ap);
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va_start(ap, fmt);
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msg = towire_errorfmtv(errmsg, channel_id, fmt, ap);
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va_end(ap);
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/* This is only best-effort; don't block. */
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io_fd_block(peer_fd, false);
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sync_crypto_write(cs, peer_fd, take(msg));
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status_failed(STATUS_FAIL_PEER_BAD, "%s", errmsg);
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}
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