usr.bin/login/login.c

62 #include <pwd.h>
334 			if (failures > (pwd ? 0 : 1))
340 		pwd = getpwnam(username);
345 		 * within the next block. pwd can be NULL since it
348 		lc = login_getclass(pwd ? pwd->pw_class : NULL);
356 		if (pwd) {
357 			if (pwd->pw_uid == 0)
360 			if (fflag && (uid == 0 || uid == pwd->pw_uid)) {
367 			} else if (pwd->pw_passwd[0] == '\0') {
393 		if (pwd == NULL) {
399 		    k5login(pwd, instance, localhost, p) == 0) {
415 		if (!sflag && *pwd->pw_passwd != '\0' &&
416 		    !strcmp(crypt(p, pwd->pw_passwd), pwd->pw_passwd)) {
433 		if (pwd && !rval && rootlogin && !rootterm(tty)) {
439 				    pwd->pw_name, hostname, tty);
443 				     pwd->pw_name, tty);
447 		if (pwd && !rval)
494 	(void)setegid(pwd->pw_gid);
495 	initgroups(username, pwd->pw_gid);
496 	(void)seteuid(pwd->pw_uid);
498 	if (chdir(pwd->pw_dir) < 0) {
502 			    pwd->pw_dir);
506 		(void)printf("No home directory %s!\n", pwd->pw_dir);
509 		pwd->pw_dir = __UNCONST("/");
528 	if (pwd->pw_expire) {
529 		if (now.tv_sec >= pwd->pw_expire) {
532 		} else if (pwd->pw_expire - now.tv_sec < pw_warntime &&
535 			    ctime(&pwd->pw_expire));
537 	if (pwd->pw_change) {
538 		if (pwd->pw_change == _PASSWORD_CHGNOW)
540 		else if (now.tv_sec >= pwd->pw_change) {
543 		} else if (pwd->pw_change - now.tv_sec < pw_warntime &&
546 			    ctime(&pwd->pw_change));
552 	(void)chown(ttyn, pwd->pw_uid,
553 	    (gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid);
555 	if (ttyaction(ttyn, "login", pwd->pw_name))
569 	if (nested == NULL && setusercontext(lc, pwd, pwd->pw_uid,
574 	if (setusercontext(lc, pwd, pwd->pw_uid,
580 	(void)setgid(pwd->pw_gid);
582 	initgroups(username, pwd->pw_gid);
584 	if (nested == NULL && setlogin(pwd->pw_name) < 0)
591 		(void)setuid(pwd->pw_uid);
594 	if (*pwd->pw_shell == '\0')
595 		pwd->pw_shell = __UNCONST(_PATH_BSHELL);
602 		pwd->pw_shell = shell;
606 	(void)setenv("HOME", pwd->pw_dir, 1);
607 	(void)setenv("SHELL", pwd->pw_shell, 1);
618 	(void)setenv("LOGNAME", pwd->pw_name, 1);
619 	(void)setenv("USER", pwd->pw_name, 1);
622 	setusercontext(lc, pwd, pwd->pw_uid, LOGIN_SETPATH);
633 		syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name);
668 		    sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pwd->pw_name);
684 	(void)strlcpy(tbuf + 1, (p = strrchr(pwd->pw_shell, '/')) ?
685 	    p + 1 : pwd->pw_shell, sizeof(tbuf) - 1);
716 	execlp(pwd->pw_shell, tbuf, NULL);
717 	err(EXIT_FAILURE, "%s", pwd->pw_shell);