programs/ipconfig/ipconfig.c

   1 /*
   2  * IP configuration utility
   3  *
   4  * Copyright 2008 Andrew Riedi
   5  * Copyright 2010 Andrew Nguyen
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <windows.h>
  23 #include <iphlpapi.h>
  24 #include <wine/unicode.h>
  25
  26 #include "ipconfig.h"
  27
  28 static int ipconfig_vprintfW(const WCHAR *msg, va_list va_args)
  29 {
  30     int wlen;
  31     DWORD count, ret;
  32     WCHAR msg_buffer[8192];
  33
  34     wlen = vsprintfW(msg_buffer, msg, va_args);
  35
  36     ret = WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), msg_buffer, wlen, &count, NULL);
  37     if (!ret)
  38     {
  39         DWORD len;
  40         char *msgA;
  41
  42         len = WideCharToMultiByte(GetConsoleOutputCP(), 0, msg_buffer, wlen,
  43             NULL, 0, NULL, NULL);
  44         msgA = HeapAlloc(GetProcessHeap(), 0, len);
  45         if (!msgA)
  46             return 0;
  47
  48         WideCharToMultiByte(GetConsoleOutputCP(), 0, msg_buffer, wlen, msgA, len,
  49             NULL, NULL);
  50         WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), msgA, len, &count, FALSE);
  51         HeapFree(GetProcessHeap(), 0, msgA);
  52     }
  53
  54     return count;
  55 }
  56
  57 static int ipconfig_printfW(const WCHAR *msg, ...)
  58 {
  59     va_list va_args;
  60     int len;
  61
  62     va_start(va_args, msg);
  63     len = ipconfig_vprintfW(msg, va_args);
  64     va_end(va_args);
  65
  66     return len;
  67 }
  68
  69 static int ipconfig_message_printfW(int msg, ...)
  70 {
  71     va_list va_args;
  72     WCHAR msg_buffer[8192];
  73     int len;
  74
  75     LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
  76         sizeof(msg_buffer)/sizeof(WCHAR));
  77
  78     va_start(va_args, msg);
  79     len = ipconfig_vprintfW(msg_buffer, va_args);
  80     va_end(va_args);
  81
  82     return len;
  83 }
  84
  85 static int ipconfig_message(int msg)
  86 {
  87     static const WCHAR formatW[] = {'%','s',0};
  88     WCHAR msg_buffer[8192];
  89
  90     LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
  91         sizeof(msg_buffer)/sizeof(WCHAR));
  92
  93     return ipconfig_printfW(formatW, msg_buffer);
  94 }
  95
  96 static const WCHAR *iftype_to_string(DWORD type)
  97 {
  98     static WCHAR msg_buffer[50];
  99
 100     int msg;
 101
 102     switch (type)
 103     {
 104     case IF_TYPE_ETHERNET_CSMACD:
 105     /* The loopback adapter appears as an Ethernet device. */
 106     case IF_TYPE_SOFTWARE_LOOPBACK:
 107         msg = STRING_ETHERNET;
 108         break;
 109     default:
 110         msg = STRING_UNKNOWN;
 111     }
 112
 113     LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
 114         sizeof(msg_buffer)/sizeof(WCHAR));
 115
 116     return msg_buffer;
 117 }
 118
 119 static void print_field(int msg, const WCHAR *value)
 120 {
 121     static const WCHAR formatW[] = {' ',' ',' ',' ','%','s',':',' ','%','s','\n',0};
 122
 123     WCHAR field[] = {'.',' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',
 124                      ' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',' ','.',' ',0};
 125     WCHAR name_buffer[sizeof(field)/sizeof(WCHAR)];
 126
 127     LoadStringW(GetModuleHandleW(NULL), msg, name_buffer, sizeof(name_buffer)/sizeof(WCHAR));
 128     memcpy(field, name_buffer, sizeof(WCHAR) * min(strlenW(name_buffer), sizeof(field)/sizeof(WCHAR) - 1));
 129
 130     ipconfig_printfW(formatW, field, value);
 131 }
 132
 133 static void print_basic_information(void)
 134 {
 135     IP_ADAPTER_ADDRESSES *adapters;
 136     ULONG out = 0;
 137
 138     if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &out) == ERROR_BUFFER_OVERFLOW)
 139     {
 140         adapters = HeapAlloc(GetProcessHeap(), 0, out);
 141         if (!adapters)
 142             exit(1);
 143
 144         if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, adapters, &out) == ERROR_SUCCESS)
 145         {
 146             IP_ADAPTER_ADDRESSES *p;
 147
 148             for (p = adapters; p; p = p->Next)
 149             {
 150                 static const WCHAR newlineW[] = {'\n',0};
 151
 152                 IP_ADAPTER_UNICAST_ADDRESS *addr;
 153
 154                 ipconfig_message_printfW(STRING_ADAPTER_FRIENDLY, iftype_to_string(p->IfType), p->FriendlyName);
 155                 ipconfig_printfW(newlineW);
 156                 print_field(STRING_CONN_DNS_SUFFIX, p->DnsSuffix);
 157
 158                 for (addr = p->FirstUnicastAddress; addr; addr = addr->Next)
 159                 {
 160                     WCHAR addr_buf[54];
 161                     DWORD len = sizeof(addr_buf)/sizeof(WCHAR);
 162
 163                     if (WSAAddressToStringW(addr->Address.lpSockaddr,
 164                                             addr->Address.iSockaddrLength, NULL,
 165                                             addr_buf, &len) == 0)
 166                         print_field(STRING_IP_ADDRESS, addr_buf);
 167                     /* FIXME: Output corresponding subnet mask. */
 168                 }
 169
 170                 /* FIXME: Output default gateway address. */
 171                 ipconfig_printfW(newlineW);
 172             }
 173         }
 174
 175         HeapFree(GetProcessHeap(), 0, adapters);
 176     }
 177 }
 178
 179 static const WCHAR *nodetype_to_string(DWORD type)
 180 {
 181     static WCHAR msg_buffer[50];
 182
 183     int msg;
 184
 185     switch (type)
 186     {
 187     case BROADCAST_NODETYPE:
 188         msg = STRING_BROADCAST;
 189         break;
 190     case PEER_TO_PEER_NODETYPE:
 191         msg = STRING_PEER_TO_PEER;
 192         break;
 193     case MIXED_NODETYPE:
 194         msg = STRING_MIXED;
 195         break;
 196     case HYBRID_NODETYPE:
 197         msg = STRING_HYBRID;
 198         break;
 199     default:
 200         msg = STRING_UNKNOWN;
 201     }
 202
 203     LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
 204         sizeof(msg_buffer)/sizeof(WCHAR));
 205
 206     return msg_buffer;
 207 }
 208
 209 static WCHAR *physaddr_to_string(WCHAR *buf, BYTE *addr, DWORD len)
 210 {
 211     static const WCHAR fmtW[] = {'%','0','2','X','-',0};
 212     static const WCHAR fmt2W[] = {'%','0','2','X',0};
 213
 214     if (!len)
 215         *buf = '\0';
 216     else
 217     {
 218         WCHAR *p = buf;
 219         DWORD i;
 220
 221         for (i = 0; i < len - 1; i++)
 222         {
 223             sprintfW(p, fmtW, addr[i]);
 224             p += 3;
 225         }
 226         sprintfW(p, fmt2W, addr[i]);
 227     }
 228
 229     return buf;
 230 }
 231
 232 static const WCHAR *boolean_to_string(int value)
 233 {
 234     static WCHAR msg_buffer[15];
 235
 236     LoadStringW(GetModuleHandleW(NULL), value ? STRING_YES : STRING_NO,
 237         msg_buffer, sizeof(msg_buffer)/sizeof(WCHAR));
 238
 239     return msg_buffer;
 240 }
 241
 242 static void print_full_information(void)
 243 {
 244     static const WCHAR newlineW[] = {'\n',0};
 245
 246     FIXED_INFO *info;
 247     IP_ADAPTER_ADDRESSES *adapters;
 248     ULONG out = 0;
 249
 250     if (GetNetworkParams(NULL, &out) == ERROR_BUFFER_OVERFLOW)
 251     {
 252         info = HeapAlloc(GetProcessHeap(), 0, out);
 253         if (!info)
 254             exit(1);
 255
 256         if (GetNetworkParams(info, &out) == ERROR_SUCCESS)
 257         {
 258             WCHAR hostnameW[MAX_HOSTNAME_LEN + 4];
 259
 260             MultiByteToWideChar(CP_ACP, 0, info->HostName, -1, hostnameW, sizeof(hostnameW));
 261             print_field(STRING_HOSTNAME, hostnameW);
 262
 263             /* FIXME: Output primary DNS suffix. */
 264
 265             print_field(STRING_NODE_TYPE, nodetype_to_string(info->NodeType));
 266             print_field(STRING_IP_ROUTING, boolean_to_string(info->EnableRouting));
 267
 268             /* FIXME: Output WINS proxy status and DNS suffix search list. */
 269
 270             ipconfig_printfW(newlineW);
 271         }
 272
 273         HeapFree(GetProcessHeap(), 0, info);
 274     }
 275
 276     if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &out) == ERROR_BUFFER_OVERFLOW)
 277     {
 278         adapters = HeapAlloc(GetProcessHeap(), 0, out);
 279         if (!adapters)
 280             exit(1);
 281
 282         if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, adapters, &out) == ERROR_SUCCESS)
 283         {
 284             IP_ADAPTER_ADDRESSES *p;
 285
 286             for (p = adapters; p; p = p->Next)
 287             {
 288                 IP_ADAPTER_UNICAST_ADDRESS *addr;
 289                 WCHAR physaddr_buf[3 * MAX_ADAPTER_ADDRESS_LENGTH];
 290
 291                 ipconfig_message_printfW(STRING_ADAPTER_FRIENDLY, iftype_to_string(p->IfType), p->FriendlyName);
 292                 ipconfig_printfW(newlineW);
 293                 print_field(STRING_CONN_DNS_SUFFIX, p->DnsSuffix);
 294                 print_field(STRING_DESCRIPTION, p->Description);
 295                 print_field(STRING_PHYS_ADDR, physaddr_to_string(physaddr_buf, p->PhysicalAddress, p->PhysicalAddressLength));
 296                 print_field(STRING_DHCP_ENABLED, boolean_to_string(p->Flags & IP_ADAPTER_DHCP_ENABLED));
 297
 298                 /* FIXME: Output autoconfiguration status. */
 299
 300                 for (addr = p->FirstUnicastAddress; addr; addr = addr->Next)
 301                 {
 302                     WCHAR addr_buf[54];
 303                     DWORD len = sizeof(addr_buf)/sizeof(WCHAR);
 304
 305                     if (WSAAddressToStringW(addr->Address.lpSockaddr,
 306                                             addr->Address.iSockaddrLength, NULL,
 307                                             addr_buf, &len) == 0)
 308                         print_field(STRING_IP_ADDRESS, addr_buf);
 309                     /* FIXME: Output corresponding subnet mask. */
 310                 }
 311
 312                 /* FIXME: Output default gateway address. */
 313
 314                 ipconfig_printfW(newlineW);
 315             }
 316         }
 317
 318         HeapFree(GetProcessHeap(), 0, adapters);
 319     }
 320 }
 321
 322 int wmain(int argc, WCHAR *argv[])
 323 {
 324     static const WCHAR slashHelp[] = {'/','?',0};
 325     static const WCHAR slashAll[] = {'/','a','l','l',0};
 326
 327     WSADATA data;
 328
 329     if (WSAStartup(MAKEWORD(2, 2), &data))
 330         return 1;
 331
 332     if (argc > 1)
 333     {
 334         if (!strcmpW(slashHelp, argv[1]))
 335         {
 336             ipconfig_message(STRING_USAGE);
 337             WSACleanup();
 338             return 1;
 339         }
 340         else if (!strcmpiW(slashAll, argv[1]))
 341         {
 342             if (argv[2])
 343             {
 344                 ipconfig_message(STRING_INVALID_CMDLINE);
 345                 ipconfig_message(STRING_USAGE);
 346                 WSACleanup();
 347                 return 1;
 348             }
 349
 350             print_full_information();
 351         }
 352         else
 353         {
 354             ipconfig_message(STRING_INVALID_CMDLINE);
 355             ipconfig_message(STRING_USAGE);
 356             WSACleanup();
 357             return 1;
 358         }
 359     }
 360     else
 361         print_basic_information();
 362
 363     WSACleanup();
 364     return 0;
 365 }