Commit Graph

30 Commits

Author SHA1 Message Date
Rusty Russell
981d82c406 common/utils: add tal_strdup_or_null helper.
It's not that uncommon to want to pass NULL through, for optional strings.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-07-26 06:55:48 +09:30
Vincenzo Palazzo
5f6642a6ff fix(jsonrpc): trim the lightning: prefix from invoice
Previously, our code checked for the presence of the `lightning:`
prefix while decoding a bolt11 string. Although this prefix is valid
and accepted by the core lightning pay command, it was causing issues
with how we managed invoices. Specifically, we were skipping the prefix
when creating a copy of the invoice string and storing the raw invoice
(including the prefix) in the database, which caused inconsistencies
in the user experience.

To address this issue, we need to strip the `lightning:` prefix before
calling each core lightning command. In addition, we should
modify the invstring inside the db with the canonical one.

This commit fixes the issue by stripping the `lightning:` prefix
from the `listsendpays` function, which will improve the
user experience and ensure consistency in our invoice management (see
next commit).

Reported-by: @johngribbin
Link: ElementsProject#6207
Fixes: debbdc0
Changelog-Fixes: trim the `lightning:` prefix from invoice everywhere.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2023-07-14 15:04:26 +09:30
Rusty Russell
db7c608e2d common/utils: remove now-unused softref facility.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-07-09 16:49:48 +09:30
Rusty Russell
65be18d355 memleak: handle libwally allocations better.
Things allocated by libwally all get the tal_name "wally_tal",
which cost me a few hours trying to find a leak.

In the case where we're making one of the allocations the parent
of the others (e.g. a wally_psbt), we can do better: supply a name
for the tal_wally_end().

So I add a new tal_wally_end_onto() which does the standard
tal_steal() trick, and also changes the (typechecked!) name.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-21 10:19:50 +10:30
Rusty Russell
8759641b06 ccan: update to get new helpers in ccan/tal
tal_dup_talarr() is simply stolen from common/utils, but tal_dup_or_null is new.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-30 14:36:55 +10:30
Rusty Russell
4ffda340d3 check: make sure all files outside contrib/ include "config.h" first.
And turn "" includes into full-path (which makes it easier to put
config.h first, and finds some cases check-includes.sh missed
previously).

config.h sets _GNU_SOURCE which really needs to be done before any
'#includes': we mainly got away with it with glibc, but other platforms
like Alpine may have stricter requirements.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-06 10:05:39 +10:30
Matt Whitlock
1f79aad830 common/utils: introduce tmpdir_mkstemp; use it
Various unit tests were creating temporary files unconditionally in /tmp
and were not cleaning up after themselves. Introduce a new variant of
mkstemp(3p) that respects the TMPDIR environment variable, and use it in
the offending unit tests. This allows each test run to use a dedicated
TMPDIR that can be cleaned up after the run.

Changelog-None

Signed-off-by: Matt Whitlock <c-lightning@mattwhitlock.name>
2021-12-06 09:20:27 +10:30
Rusty Russell
c1f534a159 backtrace: avoid duplicate backtrace objects.
This happened in my tal_dump(), and I couldn't see how we ended up
with object having more than one "backtrace".  Adding asserts that we
never added a second backtrace didn't trigger.

Finally I wondered if we were tal_steal() backtraces, and sure enough
we do that blinding in one place: libwally wrapping.  So fix that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-11-27 10:38:13 +10:30
Rusty Russell
7401b26824 cleanup: remove unneeded includes in C files.
Before:
 Ten builds, laptop -j5, no ccache:

```
real	0m36.686000-38.956000(38.608+/-0.65)s
user	2m32.864000-42.253000(40.7545+/-2.7)s
sys	0m16.618000-18.316000(17.8531+/-0.48)s
```

 Ten builds, laptop -j5, ccache (warm):

```
real	0m8.212000-8.577000(8.39989+/-0.13)s
user	0m12.731000-13.212000(12.9751+/-0.17)s
sys	0m3.697000-3.902000(3.83722+/-0.064)s
```

After:
 Ten builds, laptop -j5, no ccache: 8% faster

```
real	0m33.802000-35.773000(35.468+/-0.54)s
user	2m19.073000-27.754000(26.2542+/-2.3)s
sys	0m15.784000-17.173000(16.7165+/-0.37)s
```

 Ten builds, laptop -j5, ccache (warm): 1% faster

```
real	0m8.200000-8.485000(8.30138+/-0.097)s
user	0m12.485000-13.100000(12.7344+/-0.19)s
sys	0m3.702000-3.889000(3.78787+/-0.056)s
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-09-17 09:43:22 +09:30
Rusty Russell
f1bea50e1d common/utils: simple utf8 helpers.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-12-02 10:38:04 +10:30
Rusty Russell
d5cb0d85b5 utils: use a cleaner pattern to capture wally allocations.
We force use of tal_wally_start/tal_wally_end around every wally
allocation, and with "end" make the caller choose where to reparent
everything.

This is particularly powerful where we allocate a tx or a psbt: we
want that tx or psbt to be the parent of the other allocations, so
this way we can reparent the tx or psbt, then reparent everything
else onto it.

Implementing psbt_finalize (which uses a behavior flag antipattern)
was tricky, so I ended up splitting that into 'psbt_finalize' and
'psbt_final_tx', which I think also makes the callers clearer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-09-23 14:45:53 +02:00
Rusty Russell
a316c517c7 common: add tal_gather_wally() function to reparent libwally objs.
This lets us reduce leaks, and ease their detection.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-09-23 13:52:49 +09:30
ZmnSCPxj jxPCSnmZ
c100de6d93 common/utils.c: Correctly handle NULL taken pointer in tal_dup_talarr.
Fixes: #3757

Reported-by: @sumBTC

Changelog-None
2020-06-23 12:48:20 +09:30
Rusty Russell
2aad3ffcf8 common: tal_dup_talarr() helper.
This is a common thing to do, so create a macro.

Unfortunately, it still needs the type arg, because the paramter may
be const, and the return cannot be, and C doesn't have a general
"(-const)" cast.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-02-27 14:16:16 +10:30
Rusty Russell
f376a9c24c common: use tabs everywhere.
Didn't generally fixup inside comments and the bech32 code: reformatting that
is just anti-social.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-02-05 14:19:12 +01:00
Rusty Russell
d5eca470dc utils: add set_softref() / clear_softref().
We often want a pointer which will turn to NULL if the pointed-to thing is
freed.  This is possible with tal objects, so create it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-10 21:48:52 -05:00
Christian Decker
d5f0c08a88 elements: Remove global is_elements variable in favor of chainparams
No need to keep duplicate globals.
2019-10-03 04:32:57 +00:00
Christian Decker
ef7a63d8f8 elements: Move from a global is_elements to a global chainparams
We now have a pointer to chainparams, that fails valgrind if we do anything
chain-specific before setting it.

Suggested-by: Rusty Russell <@rustyrussell>
2019-10-03 04:32:57 +00:00
Christian Decker
a300dea7e6 elements: Global variable whether we are running on elements
Using a global variable is a bit lazy, but weaving the network type through
the entire stack is a daunting task. Maybe we can make that happen at a later
stage.

Most of the changes in `chainparams.c` are just formatting the
`genesis_blockhash` a bit nicer (`clang-format` to the rescue).

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-10-03 04:32:57 +00:00
Christian Decker
9ce3e960ec common: Add tal_arr_remove helper
Suggested-by: Rusty Russell <@rustyrussell>
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-12-05 23:15:59 +00:00
Rusty Russell
4bdacea7b5 common/utils: don't free tmpctx, just the children.
In some daemons I want to hand it into a loop, which would call
clean_tmpctx().  This causes a subtle bug.

So just free the children directly: the pointer itself remains valid.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-05 02:03:58 +00:00
Rusty Russell
337075dc8c tal: don't access low-level tal functions.
In several places we use low-level tal functions because we want the
label to be something other than the default.  ccan/tal is adding
tal_*_label so replace them and shim it for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-30 11:31:17 +02:00
Rusty Russell
5cf34d6618 Remove tal_len, use tal_count() or tal_bytelen().
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>
2018-07-30 11:31:17 +02:00
practicalswift
abf510740d Force the use of the POSIX C locale for all commands and their subprocesses 2018-04-27 14:02:59 +02:00
Rusty Russell
4845445079 memleak: ignore tmpctx.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-16 00:16:10 +00:00
Rusty Russell
ef2a063169 utils: add a global tmpctx.
I did a brief audit of tmpctx uses, and we do leak them in various
corner cases.  Fortunely, all our daemons are based on some kind of
I/O loop, so it's fairly easy to clean a global tmpctx at that point.

This makes things a bit neater, and slightly more efficient, but also
clearer: I avoided creating a tmpctx in a few places because I didn't
want to add another allocation.  With that penalty removed, I can use
it more freely and hopefully write clearer code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-16 00:16:10 +00:00
Corné Plooy
dbbc61bc4e Coding style fix 2018-03-06 19:26:21 +01:00
Corné Plooy
b857b2e843 Add assertions in various places to ensure tal_fmt doesn't receive NULL as argument for strings. 2018-03-06 19:26:21 +01:00
Rusty Russell
e587ec3bd3 tal_tmpctx: keep information around so we can find leaks.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-29 10:20:08 +09:30
Rusty Russell
85ff95e829 common: new directory for any shared objects.
To avoid everything pulling in HTLCs stuff to the opening daemon, we
split the channel and commit_tx routines into initial_channel and
initial_commit_tx (no HTLC support) and move full HTLC supporting versions
into channeld.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00