#include "libbb.h"
/* Become the user and group(s) specified by PW. */
-void change_identity(const struct passwd *pw)
+void FAST_FUNC change_identity(const struct passwd *pw)
{
if (initgroups(pw->pw_name, pw->pw_gid) == -1)
bb_perror_msg_and_die("can't set groups");
- endgrent(); /* ?? */
+ endgrent(); /* helps to close a fd used internally by libc */
xsetgid(pw->pw_gid);
xsetuid(pw->pw_uid);
}