/*
* Copyright (c) 1988, 1993, 1994
* The Regents of the University of California. All rights reserved.
+ * Copyright (c) 2002 Networks Associates Technology, Inc.
+ * All rights reserved.
+ *
+ * Portions of this software were developed for the FreeBSD Project by
+ * ThinkSec AS and NAI Labs, the Security Research Division of Network
+ * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
+ * ("CBOSS"), as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* SUCH DAMAGE.
*/
+#if 0
#ifndef lint
static char sccsid[] = "@(#)field.c 8.4 (Berkeley) 4/2/94";
#endif /* not lint */
+#endif
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
#include <sys/param.h>
+#include <sys/stat.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
+#include <paths.h>
#include <pwd.h>
-#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <unistd.h>
#include "chpass.h"
-#include "pathnames.h"
/* ARGSUSED */
int
-p_login(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_login(char *p, struct passwd *pw, ENTRY *ep __unused)
{
if (!*p) {
warnx("empty login field");
- return (1);
+ return (-1);
}
if (*p == '-') {
warnx("login names may not begin with a hyphen");
- return (1);
+ return (-1);
}
if (!(pw->pw_name = strdup(p))) {
warnx("can't save entry");
- return (1);
+ return (-1);
}
if (strchr(p, '.'))
warnx("\'.\' is dangerous in a login name");
/* ARGSUSED */
int
-p_passwd(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_passwd(char *p, struct passwd *pw, ENTRY *ep __unused)
{
- if (!*p)
- pw->pw_passwd = ""; /* "NOLOGIN"; */
- else if (!(pw->pw_passwd = strdup(p))) {
+ if (!(pw->pw_passwd = strdup(p))) {
warnx("can't save password entry");
- return (1);
+ return (-1);
}
-
+
return (0);
}
/* ARGSUSED */
int
-p_uid(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_uid(char *p, struct passwd *pw, ENTRY *ep __unused)
{
uid_t id;
char *np;
if (!*p) {
warnx("empty uid field");
- return (1);
+ return (-1);
}
if (!isdigit(*p)) {
warnx("illegal uid");
- return (1);
+ return (-1);
}
errno = 0;
id = strtoul(p, &np, 10);
- if (*np || (id == ULONG_MAX && errno == ERANGE)) {
+ if (*np || (id == (uid_t)ULONG_MAX && errno == ERANGE)) {
warnx("illegal uid");
- return (1);
+ return (-1);
}
pw->pw_uid = id;
return (0);
/* ARGSUSED */
int
-p_gid(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_gid(char *p, struct passwd *pw, ENTRY *ep __unused)
{
struct group *gr;
gid_t id;
if (!*p) {
warnx("empty gid field");
- return (1);
+ return (-1);
}
if (!isdigit(*p)) {
if (!(gr = getgrnam(p))) {
warnx("unknown group %s", p);
- return (1);
+ return (-1);
}
pw->pw_gid = gr->gr_gid;
return (0);
}
errno = 0;
id = strtoul(p, &np, 10);
- if (*np || (id == ULONG_MAX && errno == ERANGE)) {
+ if (*np || (id == (uid_t)ULONG_MAX && errno == ERANGE)) {
warnx("illegal gid");
- return (1);
+ return (-1);
}
pw->pw_gid = id;
return (0);
/* ARGSUSED */
int
-p_class(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_class(char *p, struct passwd *pw, ENTRY *ep __unused)
{
- if (!*p)
- pw->pw_class = "";
- else if (!(pw->pw_class = strdup(p))) {
+ if (!(pw->pw_class = strdup(p))) {
warnx("can't save entry");
- return (1);
+ return (-1);
}
-
+
return (0);
}
/* ARGSUSED */
int
-p_change(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_change(char *p, struct passwd *pw, ENTRY *ep __unused)
{
if (!atot(p, &pw->pw_change))
return (0);
warnx("illegal date for change field");
- return (1);
+ return (-1);
}
/* ARGSUSED */
int
-p_expire(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_expire(char *p, struct passwd *pw, ENTRY *ep __unused)
{
if (!atot(p, &pw->pw_expire))
return (0);
warnx("illegal date for expire field");
- return (1);
+ return (-1);
}
/* ARGSUSED */
int
-p_gecos(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_gecos(char *p, struct passwd *pw __unused, ENTRY *ep)
{
- if (!*p)
- ep->save = "";
- else if (!(ep->save = strdup(p))) {
+ if (!(ep->save = strdup(p))) {
warnx("can't save entry");
- return (1);
+ return (-1);
}
return (0);
}
/* ARGSUSED */
int
-p_hdir(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_hdir(char *p, struct passwd *pw, ENTRY *ep __unused)
{
if (!*p) {
warnx("empty home directory field");
- return (1);
+ return (-1);
}
if (!(pw->pw_dir = strdup(p))) {
warnx("can't save entry");
- return (1);
+ return (-1);
}
return (0);
}
/* ARGSUSED */
int
-p_shell(p, pw, ep)
- char *p;
- struct passwd *pw;
- ENTRY *ep;
+p_shell(char *p, struct passwd *pw, ENTRY *ep __unused)
{
- char *t, *ok_shell();
+ struct stat sbuf;
if (!*p) {
- pw->pw_shell = _PATH_BSHELL;
+ pw->pw_shell = strdup(_PATH_BSHELL);
return (0);
}
/* only admin can change from or to "restricted" shells */
- if (uid && pw->pw_shell && !ok_shell(pw->pw_shell)) {
+ if (!master_mode && pw->pw_shell && !ok_shell(pw->pw_shell)) {
warnx("%s: current shell non-standard", pw->pw_shell);
- return (1);
+ return (-1);
}
- if (!(t = ok_shell(p))) {
- if (uid) {
+ if (!ok_shell(p)) {
+ if (!master_mode) {
warnx("%s: non-standard shell", p);
- return (1);
+ return (-1);
}
+ pw->pw_shell = strdup(p);
}
else
- p = t;
- if (!(pw->pw_shell = strdup(p))) {
+ pw->pw_shell = dup_shell(p);
+ if (!pw->pw_shell) {
warnx("can't save entry");
- return (1);
+ return (-1);
+ }
+ if (stat(pw->pw_shell, &sbuf) < 0) {
+ if (errno == ENOENT)
+ warnx("WARNING: shell '%s' does not exist",
+ pw->pw_shell);
+ else
+ warn("WARNING: can't stat shell '%s'", pw->pw_shell);
+ return (0);
+ }
+ if (!S_ISREG(sbuf.st_mode)) {
+ warnx("WARNING: shell '%s' is not a regular file",
+ pw->pw_shell);
+ return (0);
+ }
+ if ((sbuf.st_mode & (S_IXOTH | S_IXGRP | S_IXUSR)) == 0) {
+ warnx("WARNING: shell '%s' is not executable", pw->pw_shell);
+ return (0);
}
return (0);
}
git.ckatri.com / pw-darwin.git / blobdiff