cap_getpwnam
struct passwd *cap_getpwnam(cap_channel_t *chan, const char *login);
pwd = cap_getpwnam(cappwd, names[i]);
pwdc = cap_getpwnam(cappwd, "root");
pwdc = cap_getpwnam(cappwd, "operator");
pwd = cap_getpwnam(cappwd, "root");
if ((pwd = cap_getpwnam(cappwd, filter_user_optarg)) == NULL)