chkpasswd.tproj/passwd.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 #define INFO_NETINFO 0
  25 #define INFO_FILE 1
  26 #define INFO_NIS 2
  27 #define INFO_DIRECTORYSERVICES 3
  28
  29 #ifndef __SLICK__
  30 #define _PASSWD_FILE "/etc/master.passwd"
  31 #else
  32 #define _PASSWD_FILE "/etc/passwd"
  33 #endif
  34
  35 #include <stdio.h>
  36 #include <errno.h>
  37 #include <pwd.h>
  38 #include <libc.h>
  39 #include <ctype.h>
  40 #include <string.h>
  41 #include <pwd.h>
  42 #include <netinfo/ni.h>
  43 #include "stringops.h"
  44
  45 #ifdef __SLICK__
  46 #define _PASSWORD_LEN 8
  47 #endif
  48
  49 static int literal = 0;
  50
  51 extern int file_check_passwd(char *, char *);
  52 extern int netinfo_check_passwd(char *, char *);
  53 extern int nis_check_passwd(char *, char *);
  54 extern int ds_check_passwd(char *, char *);
  55
  56 void
  57 checkpasswd(char *name, char *old_pw)
  58 {
  59         int isNull;
  60         char *p;
  61
  62         printf("Checking password for %s.\n", name);
  63
  64         p = "";
  65         isNull = 0;
  66         if (old_pw == NULL) isNull = 1;
  67         if ((isNull == 0) && (old_pw[0] == '\0')) isNull = 1;
  68         if (isNull == 0)
  69         {
  70                 p = getpass("Password:");
  71                 sleep(1); // make sure this doesn't go too quickly
  72                 if (strcmp(literal ? p : crypt(p, old_pw), old_pw))
  73                 {
  74                         errno = EACCES;
  75                         fprintf(stderr, "Sorry\n");
  76                         exit(1);
  77                 }
  78         }
  79         return;
  80 }
  81
  82 void
  83 usage()
  84 {
  85         fprintf(stderr, "usage: chkpasswd [-i infosystem] [-l location] [-c] [name]\n");
  86         fprintf(stderr, "supported infosystems are:\n");
  87         fprintf(stderr, "    netinfo\n");
  88         fprintf(stderr, "    file\n");
  89         fprintf(stderr, "    nis\n");
  90         fprintf(stderr, "    opendirectory\n");
  91         fprintf(stderr, "for netinfo, location may be a domain name or server/tag\n");
  92         fprintf(stderr, "for file, location may be a file name (%s is the default)\n",
  93                 _PASSWD_FILE);
  94         fprintf(stderr, "for nis, location may be a NIS domainname\n");
  95         fprintf(stderr, "for opendirectory, location may be a directory node name\n");
  96         fprintf(stderr, "if -c is specified, the password you supply is compared\n");
  97         fprintf(stderr, "verbatim without first being crypted\n");
  98         exit(1);
  99 }
 100
 101 int
 102 main(int argc, char *argv[])
 103 {
 104         char *user, *locn;
 105         int i, infosystem;
 106         struct passwd *pw;
 107
 108         infosystem = INFO_DIRECTORYSERVICES;
 109         user = NULL;
 110         locn = NULL;
 111
 112         for (i = 1; i < argc; i++)
 113         {
 114                 if (!strcmp(argv[i], "-i"))
 115                 {
 116                         if (++i >= argc)
 117                         {
 118                                 fprintf(stderr, "no argument for -i option\n");
 119                                 usage();
 120                         }
 121
 122                         if (!strcmp(argv[i], "NetInfo")) infosystem = INFO_NETINFO;
 123                         else if (!strcmp(argv[i], "netinfo")) infosystem = INFO_NETINFO;
 124                         else if (!strcmp(argv[i], "File")) infosystem = INFO_FILE;
 125                         else if (!strcmp(argv[i], "file")) infosystem = INFO_FILE;
 126                         else if (!strcmp(argv[i], "NIS")) infosystem = INFO_NIS;
 127                         else if (!strcmp(argv[i], "nis")) infosystem = INFO_NIS;
 128                         else if (!strcmp(argv[i], "YP")) infosystem = INFO_NIS;
 129                         else if (!strcmp(argv[i], "yp")) infosystem = INFO_NIS;
 130                         else if (!strcasecmp(argv[i], "opendirectory")) infosystem = INFO_DIRECTORYSERVICES;
 131                         else
 132                         {
 133                                 fprintf(stderr, "unknown info system \"%s\"\n", argv[i]);
 134                                 usage();
 135                         }
 136                 }
 137
 138                 else if (!strcmp(argv[i], "-l"))
 139                 {
 140                         if (++i >= argc)
 141                         {
 142                                 fprintf(stderr, "no argument for -l option\n");
 143                                 usage();
 144                         }
 145                         locn = argv[i];
 146                 }
 147
 148                 else if (!strcmp(argv[i], "-c")) literal++;
 149                 else if (user == NULL) user = argv[i];
 150                 else usage();
 151         }
 152
 153         if (user == NULL)
 154         {
 155                 if ((pw = getpwuid(getuid())) == NULL || (user = pw->pw_name) == NULL)
 156                 {
 157                         fprintf(stderr, "you don't have a login name\n");
 158                         exit(1);
 159                 }
 160         }
 161
 162         switch (infosystem)
 163         {
 164                 case INFO_NETINFO:
 165                         netinfo_check_passwd(user, locn);
 166                         break;
 167                 case INFO_FILE:
 168                         file_check_passwd(user, locn);
 169                         break;
 170                 case INFO_NIS:
 171                         nis_check_passwd(user, locn);
 172                         break;
 173                 case INFO_DIRECTORYSERVICES:
 174                         ds_check_passwd(user, locn);
 175                         break;
 176         }
 177
 178         exit(0);
 179 }
 180