usr/src/lib/libsmbfs/smb/ui-sun.c

   1 /*
   2  * Copyright (c) 2001 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
  25 /*
  26  * Routines for interacting with the user to get credentials
  27  * (workgroup/domain, username, password, etc.)
  28  */
  29
  30 #include <stdlib.h>
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <unistd.h>
  35 #include <libintl.h>
  36 #include <ctype.h>
  37
  38 #include <netsmb/smb_lib.h>
  39 #include "private.h"
  40 #include "ntlm.h"
  41
  42 #if 0 /* not yet */
  43 #define MAXLINE         127
  44 static void
  45 smb_tty_prompt(char *prmpt,
  46         char *buf, size_t buflen)
  47 {
  48         char temp[MAXLINE+1];
  49         char *cp;
  50         int ch;
  51
  52         memset(temp, 0, sizeof (temp));
  53
  54         fprintf(stderr, "%s", prmpt);
  55         cp = temp;
  56         while ((ch = getc(stdin)) != EOF) {
  57                 if (ch == '\n' || ch == '\r')
  58                         break;
  59                 if (isspace(ch) || iscntrl(ch))
  60                         continue;
  61                 *cp++ = ch;
  62                 if (cp == &temp[MAXLINE])
  63                         break;
  64         }
  65
  66         /* If input empty, accept default. */
  67         if (cp == temp)
  68                 return;
  69
  70         /* Use input as new value. */
  71         strncpy(buf, temp, buflen);
  72 }
  73 #endif /* not yet */
  74
  75 /*
  76  * Prompt for a new password after auth. failure.
  77  * (and maybe new user+domain, but not yet)
  78  */
  79 int
  80 smb_get_authentication(struct smb_ctx *ctx)
  81 {
  82         char *npw;
  83         int err;
  84
  85         /*
  86          * If we're getting a password, we must be doing
  87          * some kind of NTLM, possibly after a failure to
  88          * authenticate using Kerberos.  Turn off krb5.
  89          */
  90         ctx->ct_authflags &= ~SMB_AT_KRB5;
  91
  92         if (ctx->ct_flags & SMBCF_KCFOUND) {
  93                 /* Tried a keychain hash and failed. */
  94                 /* XXX: delete the KC entry? */
  95                 ctx->ct_flags |= SMBCF_KCBAD;
  96         }
  97
  98         if (ctx->ct_flags & SMBCF_NOPWD)
  99                 return (ENOTTY);
 100
 101         if (isatty(STDIN_FILENO)) {
 102
 103                 /* Need command-line prompting. */
 104                 npw = getpassphrase(dgettext(TEXT_DOMAIN, "Password:"));
 105                 if (npw == NULL)
 106                         return (EINTR);
 107                 memset(ctx->ct_password, 0, sizeof (ctx->ct_password));
 108                 strlcpy(ctx->ct_password, npw, sizeof (ctx->ct_password));
 109         } else {
 110
 111                 /*
 112                  * XXX: Ask the user for help, possibly via
 113                  * GNOME dbus or some such... (todo).
 114                  */
 115                 smb_error(dgettext(TEXT_DOMAIN,
 116         "Cannot prompt for a password when input is redirected."), 0);
 117                 return (ENOTTY);
 118         }
 119
 120         /*
 121          * Recompute the password hashes.
 122          */
 123         if (ctx->ct_password[0]) {
 124                 err = ntlm_compute_lm_hash(ctx->ct_lmhash, ctx->ct_password);
 125                 if (err != 0)
 126                         return (err);
 127                 err = ntlm_compute_nt_hash(ctx->ct_nthash, ctx->ct_password);
 128                 if (err != 0)
 129                         return (err);
 130         }
 131
 132         return (0);
 133 }
 134
 135 /*ARGSUSED*/
 136 int
 137 smb_browse(struct smb_ctx *ctx, int anon)
 138 {
 139         /*
 140          * Let user pick a share.
 141          * Not supported.
 142          */
 143         return (EINTR);
 144 }