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psbt: add 'wally_psbt_clone' function, to clone a psbt

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We'll need this for settng the tx correctly, for reasons
This commit is contained in:
niftynei
2020-05-28 22:04:46 -05:00
committed by Christian Decker
parent d737b54625
commit 3c6e3eecee
2 changed files with 14 additions and 0 deletions
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12
bitcoin/psbt.c
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@@ -17,6 +17,18 @@
memmove((arr) + (pos), (arr) + (pos) + 1, \
sizeof(*(arr)) * ((num) - ((pos) + 1)))
/* FIXME: someday this will break, because it's been exposed in libwally */
int wally_psbt_clone(const struct wally_psbt *psbt, struct wally_psbt **output)
{
int ret;
size_t byte_len;
const u8 *bytes = psbt_get_bytes(NULL, psbt, &byte_len);
ret = wally_psbt_from_bytes(bytes, byte_len, output);
tal_free(bytes);
return ret;
}
void psbt_destroy(struct wally_psbt *psbt)
{
wally_psbt_free(psbt);

2
bitcoin/psbt.h
View File

@@ -12,6 +12,8 @@ struct wally_psbt_input;
struct wally_tx;
struct amount_sat;
int wally_psbt_clone(const struct wally_psbt *psbt, struct wally_psbt **output);
void psbt_destroy(struct wally_psbt *psbt);
struct wally_psbt *new_psbt(const tal_t *ctx,