While rare, it is possible for a user to be a member in more groups than
what the system limit allows (on Linux typically NGROUPS_MAX=65536) and
if that is the case, running `id` or `id user` will not print all of
them. This is a minor bug, but easily fixable by emitting a warning if
it happens.
---
src/id.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/id.c b/src/id.c
index 38d5517bd..c572b2d99 100644
--- a/src/id.c
+++ b/src/id.c
@@ -401,6 +401,13 @@ print_full_info (char const *username)
ok &= false;
return;
}
+ else if (sysconf(_SC_NGROUPS_MAX) > 0 && n_groups >
sysconf(_SC_NGROUPS_MAX))
+ {
+ fprintf (stderr,
+ _("Warning: User '%s' may be member of more groups than "\
+ "the system allows\n"),
+ (username != NULL) ? username : "");
+ }
if (n_groups > 0)
fputs (_(" groups="), stdout);
--
2.25.1
