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Fix useradd with SUB_UID_COUNT=0

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Closes #298

Fix useradd when SUB_UID_COUNT=0 in login.defs.

Signed-off-by: Serge Hallyn <serge@hallyn.com>
This commit is contained in:
Serge Hallyn 2021-05-22 11:42:02 -05:00
parent c6cab4a7ba
commit 663824ef4c
1 changed files with 6 additions and 2 deletions
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8
src/useradd.c
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@ -2386,6 +2386,8 @@ int main (int argc, char **argv)
#ifdef ENABLE_SUBIDS
uid_t uid_min;
uid_t uid_max;
unsigned long subuid_count;
unsigned long subgid_count;
#endif
/*
@ -2427,9 +2429,11 @@ int main (int argc, char **argv)
#ifdef ENABLE_SUBIDS
uid_min = (uid_t) getdef_ulong ("UID_MIN", 1000UL);
uid_max = (uid_t) getdef_ulong ("UID_MAX", 60000UL);
is_sub_uid = sub_uid_file_present () && !rflg &&
subuid_count = getdef_ulong ("SUB_UID_COUNT", 65536);
subgid_count = getdef_ulong ("SUB_GID_COUNT", 65536);
is_sub_uid = subuid_count > 0 && sub_uid_file_present () && !rflg &&
(!user_id || (user_id <= uid_max && user_id >= uid_min));
is_sub_gid = sub_gid_file_present () && !rflg &&
is_sub_gid = subgid_count > 0 && sub_gid_file_present () && !rflg &&
(!user_id || (user_id <= uid_max && user_id >= uid_min));
#endif /* ENABLE_SUBIDS */