aboutsummaryrefslogtreecommitdiff
path: root/src/gns/w32nsp-install.c
blob: 097c039c516255490fe4f9199015eacbb8248c92 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
     This file is part of GNUnet.
     Copyright (C) 2012 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
*/
/**
 * @file gns/w32nsp-install.c
 * @brief W32 integration installer for GNS
 * @author LRN
 */

#include <ws2spi.h>
#include <windows.h>
#include <nspapi.h>
#include <initguid.h>
#include "gnunet_w32nsp_lib.h"
#include <stdio.h>

int
main (int argc, char **argv)
{
  int ret;
  int r = 1;
  WSADATA wsd;
  GUID id = GNUNET_NAMESPACE_PROVIDER_DNS;
  wchar_t *cmdl;
  int wargc;
  wchar_t **wargv;
  /* Allocate a 4K buffer to retrieve all the namespace providers */
  DWORD dwInitialBufferLen = 4096;
  DWORD dwBufferLen;
  WSANAMESPACE_INFO *pi;
  int p_count;
  int i;

  if (WSAStartup (MAKEWORD (2,2), &wsd) != 0)
  {
    fprintf (stderr, "WSAStartup () failed: %lu\n", GetLastError ());
    return 5;
  }

  dwBufferLen = dwInitialBufferLen;
  pi = malloc (dwBufferLen);
  if (NULL == pi)
  {
    fprintf (stderr, "malloc (%lu) failed: %d\n", dwBufferLen, errno);
    WSACleanup ();
    return 6;
  }
  p_count = WSAEnumNameSpaceProviders (&dwBufferLen, pi);
  if (SOCKET_ERROR == p_count)
  {
    DWORD err = GetLastError ();
    if (WSAEFAULT == err && dwBufferLen != dwInitialBufferLen)
    {
      free (pi);

      pi = malloc (dwBufferLen);
      if (pi == NULL)
      {
        fprintf (stderr, "malloc (%lu) failed: %d\n", dwBufferLen, errno);
        WSACleanup ();
        return 6;
      }

      p_count = WSAEnumNameSpaceProviders (&dwBufferLen, pi);
      if (SOCKET_ERROR == p_count)
      {
        fprintf (stderr, "WSAEnumNameSpaceProviders (&%lu, %p) failed: %lu\n", dwBufferLen, pi, GetLastError ());
        free (pi);
        WSACleanup ();
        return 7;
      }
    }
    else
    {
      fprintf (stderr, "WSAEnumNameSpaceProviders (&%lu, %p) failed: %lu\n", dwBufferLen, pi, GetLastError ());
      free (pi);
      WSACleanup ();
      return 8;
    }
  }
  for (i= 0; i < p_count; i++)
  {
    if (IsEqualGUID (&pi[i].NSProviderId, &id))
    {
      fprintf (stderr, "GNUnet DNS provider is already installed\n");
      free (pi);
      WSACleanup ();
      return 0;
    }
  }
  free (pi);

  cmdl = GetCommandLineW ();
  if (cmdl == NULL)
  {
    WSACleanup ();
    return 2;
  }
  wargv = CommandLineToArgvW (cmdl, &wargc);
  if (wargv == NULL)
  {
    WSACleanup ();
    return 3;
  }
  r = 4;

  if (wargc == 2)
  {
    ret = WSCInstallNameSpace (L"GNUnet DNS provider", wargv[1], NS_DNS, 0, &id);
    if (ret == NO_ERROR)
    {
      fprintf (stderr, "Installed GNUnet DNS provider\n");
      r = 0;
    }
    else
    {
      r = 1;
      fprintf (stderr,
          "WSCInstallNameSpace (L\"GNUnet DNS provider\", \"%S\", %d, 0, %p) failed: %lu\n",
          wargv[1], NS_DNS, &id, GetLastError ());
    }
  }
  else
    fprintf (stderr, "Usage: %S <path-to-libw32nsp>\n", wargv[0]);
  WSACleanup ();
  return r;
}