[R-package] CRAN warning about use of `vsprintf()`

[shiyu1994]

Description

On Dec 3rd, I received the following email from CRAN

[????????? ripley@stats.ox.ac.uk ????????? [https://aka.ms/LearnAboutSenderIdentification?????????????]](https://aka.ms/LearnAboutSenderIdentification?????????????%5d)

Dear maintainer,

Please see the problems shown on
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcran.r-project.org%2Fweb%2Fchecks%2Fcheck_results_lightgbm.html&data=05%7C01%7Cyushi2%40microsoft.com%7C6bbf2f089d94451d7c7208dad50de56c%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638056552948658112%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QhvwqS7zT0kfP%2FUXkBOB00Y%2FTm%2FRzCVKSa3FfBl8w1I%3D&reserved=0>.

Please correct before 2022-12-17 to safely retain your package on CRAN.

Do remember to look at the 'Additional issues'.

The CRAN Team

We need to fix the issue before 17th Dec.

[shiyu1994]

The URL is pasted here for convenience.
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcran.r-project.org%2Fweb%2Fchecks%2Fcheck_results_lightgbm.html&data=05%7C01%7Cyushi2%40microsoft.com%7C6bbf2f089d94451d7c7208dad50de56c%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638056552948658112%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QhvwqS7zT0kfP%2FUXkBOB00Y%2FTm%2FRzCVKSa3FfBl8w1I%3D&reserved=0

[guolinke]

cc @jameslamb

[jameslamb]

Thanks @shiyu1994 ! I think this is fixed by #5561 , just need to release the changes. I will put up a release PR when I'm back from traveling on December 6.

[jameslamb]

I've copied the exact text of the CRAN warnings here. In the future @shiyu1994 , please do that so that these issues can be found from search engines. That way, other projects getting the same warning from CRAN can learn from how we fixed it here in LightGBM.

Result: WARN
File ‘lightgbm/libs/lightgbm.so’:
Found ‘__vsprintf_chk’, possibly from ‘vsprintf’ (C)
Objects: ‘boosting/boosting.o’, ‘boosting/gbdt.o’,
‘boosting/gbdt_model_text.o’, ‘boosting/prediction_early_stop.o’,
‘io/bin.o’, ‘io/config.o’, ‘io/config_auto.o’, ‘io/dataset.o’,
‘io/dataset_loader.o’, ‘io/json11.o’, ‘io/metadata.o’,
‘io/parser.o’, ‘io/train_share_states.o’, ‘io/tree.o’,
‘metric/dcg_calculator.o’, ‘metric/metric.o’,
‘objective/objective_function.o’, ‘network/linkers_socket.o’,
‘network/network.o’, ‘treelearner/data_parallel_tree_learner.o’,
‘treelearner/feature_parallel_tree_learner.o’,
‘treelearner/linear_tree_learner.o’,
‘treelearner/serial_tree_learner.o’,
‘treelearner/tree_learner.o’,
‘treelearner/voting_parallel_tree_learner.o’, ‘c_api.o’,
‘lightgbm_R.o’
Compiled code should not call entry points which might terminate R nor
write to stdout/stderr instead of to the console, nor use Fortran I/O
nor system RNGs nor [v]sprintf.
See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Flavors: r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-gcc

and

Check: compiled code
Result: WARN
File ‘lightgbm/libs/lightgbm.so’:
Found ‘vsprintf’, possibly from ‘vsprintf’ (C)
Objects: ‘boosting/boosting.o’, ‘boosting/gbdt.o’,
‘boosting/gbdt_model_text.o’, ‘boosting/prediction_early_stop.o’,
‘io/bin.o’, ‘io/config.o’, ‘io/config_auto.o’, ‘io/dataset.o’,
‘io/dataset_loader.o’, ‘io/json11.o’, ‘io/metadata.o’,
‘io/parser.o’, ‘io/train_share_states.o’, ‘io/tree.o’,
‘metric/dcg_calculator.o’, ‘metric/metric.o’,
‘objective/objective_function.o’, ‘network/linkers_socket.o’,
‘network/network.o’, ‘treelearner/data_parallel_tree_learner.o’,
‘treelearner/feature_parallel_tree_learner.o’,
‘treelearner/linear_tree_learner.o’,
‘treelearner/serial_tree_learner.o’,
‘treelearner/tree_learner.o’,
‘treelearner/voting_parallel_tree_learner.o’, ‘c_api.o’,
‘lightgbm_R.o’
Compiled code should not call entry points which might terminate R nor
write to stdout/stderr instead of to the console, nor use Fortran I/O
nor system RNGs nor [v]sprintf.
See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Flavor: r-devel-linux-x86_64-fedora-clang

[shiyu1994]

@jameslamb Thanks for the reminder.

[jameslamb]

v3.3.4 is now on CRAN (#5619). It's passing all CRAN checks without warnings.

https://cran.r-project.org/web/checks/check_results_lightgbm.html

So this is resolved. Thanks for letting us know so quickly @shiyu1994 !

[github-actions]

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