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* libmisc/find_new_gid.c, libmisc/find_new_uid.c: Detect some

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misconfigurations of UID_MIN, UID_MAX, SYS_UID_MIN, SYS_UID_MAX (and
	the GID equivalents)
This commit is contained in:
nekral-guest
2010-03-21 01:20:50 +00:00
parent a83124dade
commit 5ebb35654b
3 changed files with 26 additions and 0 deletions
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10
libmisc/find_new_uid.c
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@ -60,10 +60,20 @@ int find_new_uid (bool sys_user,
if (!sys_user) {
uid_min = (uid_t) getdef_ulong ("UID_MIN", 1000UL);
uid_max = (uid_t) getdef_ulong ("UID_MAX", 60000UL);
if (uid_max < uid_min) {
(void) fprintf (stderr,
_("%s: Invalid configuration: UID_MIN (%lu), UID_MAX (%lu)\n"),
Prog, (unsigned long) uid_min, (unsigned long) uid_max);
}
} else {
uid_min = (uid_t) getdef_ulong ("SYS_UID_MIN", 101UL);
uid_max = (uid_t) getdef_ulong ("UID_MIN", 1000UL) - 1;
uid_max = (uid_t) getdef_ulong ("SYS_UID_MAX", (unsigned long) uid_max);
if (uid_max < uid_min) {
(void) fprintf (stderr,
_("%s: Invalid configuration: SYS_UID_MIN (%lu), UID_MIN (%lu), SYS_UID_MAX (%lu)\n"),
Prog, (unsigned long) uid_min, getdef_ulong ("UID_MIN", 1000UL), (unsigned long) uid_max);
}
}
used_uids = alloca (sizeof (bool) * (uid_max +1));
memset (used_uids, false, sizeof (bool) * (uid_max + 1));