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Diffstat (limited to 'toys/lsb/su.c')
-rw-r--r--toys/lsb/su.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/toys/lsb/su.c b/toys/lsb/su.c
index 616541b9..612daef1 100644
--- a/toys/lsb/su.c
+++ b/toys/lsb/su.c
@@ -54,11 +54,13 @@ void su_main()
else name = "root";
if (!(shp = getspnam(name))) perror_exit("no '%s'", name);
- if (*shp->sp_pwdp != '$') goto deny;
- if (read_password(toybuf, sizeof(toybuf), "Password: ")) goto deny;
- passhash = crypt(toybuf, shp->sp_pwdp);
- memset(toybuf, 0, sizeof(toybuf));
- if (!passhash || strcmp(passhash, shp->sp_pwdp)) goto deny;
+ if (getuid()) {
+ if (*shp->sp_pwdp != '$') goto deny;
+ if (read_password(toybuf, sizeof(toybuf), "Password: ")) goto deny;
+ passhash = crypt(toybuf, shp->sp_pwdp);
+ memset(toybuf, 0, sizeof(toybuf));
+ if (!passhash || strcmp(passhash, shp->sp_pwdp)) goto deny;
+ }
up = xgetpwnam(name);
xsetuser(up);