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Macros/rgb hooks#6

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vincenzopalazzo wants to merge 14 commits intomasterfrom
macros/rgb-hooks
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Macros/rgb hooks#6
vincenzopalazzo wants to merge 14 commits intomasterfrom
macros/rgb-hooks

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@vincenzopalazzo vincenzopalazzo force-pushed the macros/rgb-hooks branch 2 times, most recently from 74e61eb to 4e4f717 Compare April 28, 2024 14:53
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
vincenzopalazzo pushed a commit that referenced this pull request Jan 7, 2026
And add a check for new uses creeping in, since it got cut & paste
everywhere.

This means "this is a valid string, but truncate it to this many characters"
vs "%.*s" which means "only read this many characters of string":

```
['lightningd-3 2025-10-23T02:31:40.890Z **BROKEN** plugin-funder: Plugin marked as important, shutting down lightningd!']
--------------------------- Captured stderr teardown ---------------------------
    #0 0x557da58ad1dc in printf_common(void*, char const*, __va_list_tag*) asan_interceptors.cpp.o
    #1 0x557da5aff814 in json_out_addv /home/runner/work/lightning/lightning/ccan/ccan/json_out/json_out.c:239:11
    #2 0x557da59740ce in plugin_logv /home/runner/work/lightning/lightning/plugins/libplugin.c:1777:2
    #3 0x557da5969b6f in plugin_log /home/runner/work/lightning/lightning/plugins/libplugin.c:1934:2
    #4 0x557da595c4f6 in datastore_del_success /home/runner/work/lightning/lightning/plugins/funder.c:161:2
    #5 0x557da598b837 in handle_rpc_reply /home/runner/work/lightning/lightning/plugins/libplugin.c:1072:10
    #6 0x557da598a4b0 in rpc_conn_read_response /home/runner/work/lightning/lightning/plugins/libplugin.c:1361:3
    #7 0x557da5adbea5 in next_plan /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:60:9
    #8 0x557da5ae06ff in do_plan /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:422:8
    ElementsProject#9 0x557da5adfb58 in io_ready /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:439:10
    ElementsProject#10 0x557da5aec2ce in io_loop /home/runner/work/lightning/lightning/ccan/ccan/io/poll.c:455:5
    ElementsProject#11 0x557da59757ac in plugin_main /home/runner/work/lightning/lightning/plugins/libplugin.c:2409:3
    ElementsProject#12 0x557da594fe23 in main /home/runner/work/lightning/lightning/plugins/funder.c:1723:2
    ElementsProject#13 0x7f6572229d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    ElementsProject#14 0x7f6572229e3f in __libc_start_main csu/../csu/libc-start.c:392:3
    ElementsProject#15 0x557da588b584 in _start (/home/runner/work/lightning/lightning/plugins/funder+0x10d584) (BuildId: 71ba63ab577fc6fa60573d3e8555f6db7d5c584d)

0x624000009d28 is located 0 bytes to the right of 7208-byte region [0x624000008100,0x624000009d28)
allocated by thread T0 here:
    #0 0x557da590e7f6 in __interceptor_realloc (/home/runner/work/lightning/lightning/plugins/funder+0x1907f6) (BuildId: 71ba63ab577fc6fa60573d3e8555f6db7d5c584d)
    #1 0x557da5b2149b in tal_resize_ /home/runner/work/lightning/lightning/ccan/ccan/tal/tal.c:755:13
    #2 0x557da59f2032 in membuf_tal_resize /home/runner/work/lightning/lightning/common/utils.c:203:2
    #3 0x557da5b03934 in membuf_prepare_space_ /home/runner/work/lightning/lightning/ccan/ccan/membuf/membuf.c:45:12
    #4 0x557da59d4289 in jsonrpc_io_read_ /home/runner/work/lightning/lightning/common/jsonrpc_io.c:127:2
    #5 0x557da598a635 in rpc_conn_read_response /home/runner/work/lightning/lightning/plugins/libplugin.c:1366:9
    #6 0x557da5adbea5 in next_plan /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:60:9
    #7 0x557da5ae06ff in do_plan /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:422:8
    #8 0x557da5adfb58 in io_ready /home/runner/work/lightning/lightning/ccan/ccan/io/io.c:439:10
    ElementsProject#9 0x557da5aec2ce in io_loop /home/runner/work/lightning/lightning/ccan/ccan/io/poll.c:455:5
    ElementsProject#10 0x557da59757ac in plugin_main /home/runner/work/lightning/lightning/plugins/libplugin.c:2409:3
    ElementsProject#11 0x557da594fe23 in main /home/runner/work/lightning/lightning/plugins/funder.c:1723:2
    ElementsProject#12 0x7f6572229d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16

SUMMARY: AddressSanitizer: heap-buffer-overflow asan_interceptors.cpp.o in printf_common(void*, char const*, __va_list_tag*)
Shadow bytes around the buggy address:
  0x0c487fff9350: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c487fff9360: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c487fff9370: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c487fff9380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c487fff9390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c487fff93a0: 00 00 00 00 00[fa]fa fa fa fa fa fa fa fa fa fa
  0x0c487fff93b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c487fff93c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c487fff93d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c487fff93e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c487fff93f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==26122==ABORTING
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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