alsa-project/alsa-utils issue #126 was opened from marc-hb:
From https://github.com/alsa-project/alsa-utils/blob/c8c348e28a258f17e3/topology/...
```C static int save(const char *output_file, void *buf, size_t size) {
fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
```
When using alsatplg in a build system (e.g.: https://github.com/thesofproject/sof/blob/3e1c160e5053eae/tools/topology/top...), all other artefacts follow the process's umask **except** alsatplg output. This causes subtle and time-consuming errors when trying to share artefacts across different processes.
git blame finds:
commit cbabe7a3f0cc84ecd352d4cbf85148946fa6c0d5 Author: Jaroslav Kysela perex@perex.cz Date: Thu Dec 19 15:36:05 2019 +0100
alsatplg: rewrite to use the new libatopology functions
Before cbabe7a3f0, opening the output file was delegated to library function `snd_tplg_build_file()`. Not sure what permissions were used then.
Workaround: ```shell alsatplg -c intput.conf -o - > output.tplg ```
Issue URL : https://github.com/alsa-project/alsa-utils/issues/126 Repository URL: https://github.com/alsa-project/alsa-utils