Add getgrouplist() to the C library. It scans the group database for
a user's supplementary groups and always reports the primary group
first. Without CONFIG_LIBC_GROUP_FILE only the primary group is
returned, since no membership information is available.
The group file is read through lib_get_tempbuffer()/lib_put_tempbuffer()
to avoid a heap allocation on every lookup.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Change the copyright header of assorted source files in libs/libc to the
ASF version. I was listed as the author in these files. I did also
check the heritage of those files and besides me they have only been
changed by the following people, all of whom did sign a CLA to the best
of my knowledge:
Alin Jerpelea
Haitao Liu
Gregory Nutt
Yamamoto Takashi
Xiang Xiao
Signed-off-by: Michael Jung <mijung@gmx.net>
