Christian and I both unwittingly used it in form:
*tal_arr_expand(&x) = tal(x, ...)
Since '=' isn't a sequence point, the compiler can (and does!) cache
the value of x, handing it to tal *after* tal_arr_expand() moves it
due to tal_resize().
The new version is somewhat less convenient to use, but doesn't have
this problem, since the assignment is always evaluated after the
resize.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is mainly just copying over the copy-editing from the
lightning-rfc repository.
[ Split to just perform changes after the UNKNOWN_PAYMENT_HASH change --RR ]
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Reported-by: Rusty Russell <@rustyrussell>
Give a clear error at the beginning if it's not bolt11 payment,
rather than falling foul of other checks.
This will work at least until some altcoin adapts the 'ln' prefix :)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We do this a lot, and had boutique helpers in various places. So add
a more generic one; for convenience it returns a pointer to the new
end element.
I prefer the name tal_arr_expand to tal_arr_append, since it's up to
the caller to populate the new array entry.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
That matches the other CSV names (HSM was the first, so it was written
before the pattern emerged).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
tal_count() is used where there's a type, even if it's char or u8, and
tal_bytelen() is going to replace tal_len() for clarity: it's only needed
where a pointer is void.
We shim tal_bytelen() for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
structeq() is too dangerous: if a structure has padding, it can fail
silently.
The new ccan/structeq instead provides a macro to define foo_eq(),
which does the right thing in case of padding (which none of our
structures currently have anyway).
Upgrade ccan, and use it everywhere. Except run-peer-wire.c, which
is only testing code and can use raw memcmp(): valgrind will tell us
if padding exists.
Interestingly, we still declared short_channel_id_eq, even though
we didn't define it any more!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
These were so far only used for bolt11 construction, but we'll need them for the
DNS seed as well, so here we just pull them out into their own unit and prefix
them.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We can have more than one; eg we might offer both bech32 and a p2sh
address, and in future we might offer v1 segwit, etc.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We don't use it yet, but now we'll decode correctly.
See: https://github.com/lightningnetwork/lightning-rfc/pull/317
lightning-rfc commit: ef053c09431442697ab46e83f9d3f86e3510a18e
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Change all calls to use the correct serialization and deserialization
functions, include the correct headers and remove the control
messages.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
And nail "make check-source" to that specific version (which is a commit id,
not a branch name, so needs a different syntax for git).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Christian Decker
lisa neigut
practicalswift
John Barboza