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/*
* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
* Reserved. This file contains Original Code and/or Modifications of
* Original Code as defined in and that are subject to the Apple Public
* Source License Version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. Please obtain a copy of the
* License at http://www.apple.com/publicsource and read it before using
* this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License."
*
* @APPLE_LICENSE_HEADER_END@
*/
#define INFO_FILE 1
#define INFO_NIS 2
#define INFO_OPEN_DIRECTORY 3
#define INFO_PAM 4
#ifndef __SLICK__
#define _PASSWD_FILE "/etc/master.passwd"
#else
#define _PASSWD_FILE "/etc/passwd"
#endif
#include <stdio.h>
#include <errno.h>
#include <pwd.h>
#include <libc.h>
#include <ctype.h>
#include <string.h>
#include <pwd.h>
#include "stringops.h"
#ifdef __SLICK__
#define _PASSWORD_LEN 8
#endif
#include "passwd.h"
const char* progname = "chkpasswd";
static int literal = 0;
void
checkpasswd(char *name, char *old_pw)
{
int isNull;
char *p;
printf("Checking password for %s.\n", name);
p = "";
isNull = 0;
if (old_pw == NULL) isNull = 1;
if ((isNull == 0) && (old_pw[0] == '\0')) isNull = 1;
if (isNull == 0)
{
p = getpass("Password:");
sleep(1); // make sure this doesn't go too quickly
if (strcmp(literal ? p : crypt(p, old_pw), old_pw))
{
errno = EACCES;
fprintf(stderr, "Sorry\n");
exit(1);
}
}
return;
}
static void
usage(void)
{
fprintf(stderr, "usage: chkpasswd [-i infosystem] [-l location] [-c] [name]\n");
fprintf(stderr, " infosystem:\n");
fprintf(stderr, " file\n");
fprintf(stderr, " NIS\n");
fprintf(stderr, " OpenDirectory\n");
fprintf(stderr, " location (for infosystem):\n");
fprintf(stderr, " file location is path to file (default is %s)\n", _PASSWD_FILE);
fprintf(stderr, " NIS location is NIS domain name\n");
fprintf(stderr, " OpenDirectory location is directory node name\n");
fprintf(stderr, " -c: supplied password is compared verbatim without first\n");
fprintf(stderr, " being crypted\n");
exit(1);
}
int
main(int argc, char *argv[])
{
char* user = NULL;
char* locn = NULL;
int infosystem, ch;
infosystem = INFO_PAM;
while ((ch = getopt(argc, argv, "ci:l:")) != -1) {
switch(ch) {
case 'i':
if (!strcasecmp(optarg, "file")) {
infosystem = INFO_FILE;
} else if (!strcasecmp(optarg, "NIS")) {
infosystem = INFO_NIS;
} else if (!strcasecmp(optarg, "YP")) {
infosystem = INFO_NIS;
} else if (!strcasecmp(optarg, "opendirectory")) {
infosystem = INFO_OPEN_DIRECTORY;
} else if (!strcasecmp(optarg, "PAM")) {
infosystem = INFO_PAM;
} else {
fprintf(stderr, "%s: Unknown info system \'%s\'.\n",
progname, optarg);
usage();
}
break;
case 'l':
locn = optarg;
break;
case 'c':
literal++;
break;
case '?':
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (argc > 1) {
usage();
} else if (argc == 1) {
user = argv[0];
}
if (user == NULL) {
struct passwd* pw = getpwuid(getuid());
if (pw != NULL && pw->pw_name != NULL) {
user = strdup(pw->pw_name);
}
if (user == NULL) {
fprintf(stderr, "you don't have a login name\n");
exit(1);
}
}
switch (infosystem)
{
case INFO_FILE:
file_check_passwd(user, locn);
break;
case INFO_NIS:
nis_check_passwd(user, locn);
break;
case INFO_OPEN_DIRECTORY:
od_check_passwd(user, locn);
break;
case INFO_PAM:
pam_check_passwd(user);
break;
}
exit(0);
}
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