Details
Minor Description
It would be useful to allow names to be mapped to projid numbers using the /etc/projid file (projid.5), as is used by the XFS quota utility (xfs_quota.8):
usera:1 userc:3
There should be a new function struct ll_project *llapi_getprjname(const char *name) function that is called by lfs and lctl to read the /etc/projid file and lookup the name and return the projid, while struct ll_project *llapi_getprjid(__u32 prjid) would lookup the numeric project ID and return the name:
struct ll_project {
__u32 lp_projid;
char *lp_name;
};
Returning the struct instead of a single value (name or prjid) allows expanding this interface in the future (e.g. to list which users are allowed to use/change the group, passwords for the group, etc. as with getgrnam(), getgrgid(), getpwnam(), getpwuid()).
It isn't very clear what benefit the /etc/projects file (projects.5) provides, so I'm not yet sure whether we need to implement support for this or not.
This should be available for use by lfs project -p, lfs find -projid, lfs quota -p, lfs setquota -p.
