package/iwinfo/src/iwinfo_cli.c

   1 /*
   2  * iwinfo - Wireless Information Library - Command line frontend
   3  *
   4  *   Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  * The iwinfo library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   9  *
  10  * The iwinfo library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
  17  */
  18
  19 #include <stdio.h>
  20
  21 #include "iwinfo.h"
  22
  23
  24 static char * format_bssid(unsigned char *mac)
  25 {
  26         static char buf[18];
  27
  28         snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
  29                 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
  30
  31         return buf;
  32 }
  33
  34 static char * format_ssid(char *ssid)
  35 {
  36         static char buf[IWINFO_ESSID_MAX_SIZE+3];
  37
  38         if (ssid && ssid[0])
  39                 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
  40         else
  41                 snprintf(buf, sizeof(buf), "unknown");
  42
  43         return buf;
  44 }
  45
  46 static char * format_channel(int ch)
  47 {
  48         static char buf[8];
  49
  50         if (ch <= 0)
  51                 snprintf(buf, sizeof(buf), "unknown");
  52         else
  53                 snprintf(buf, sizeof(buf), "%d", ch);
  54
  55         return buf;
  56 }
  57
  58 static char * format_frequency(int freq)
  59 {
  60         static char buf[10];
  61
  62         if (freq <= 0)
  63                 snprintf(buf, sizeof(buf), "unknown");
  64         else
  65                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
  66
  67         return buf;
  68 }
  69
  70 static char * format_txpower(int pwr)
  71 {
  72         static char buf[10];
  73
  74         if (pwr < 0)
  75                 snprintf(buf, sizeof(buf), "unknown");
  76         else
  77                 snprintf(buf, sizeof(buf), "%d dBm", pwr);
  78
  79         return buf;
  80 }
  81
  82 static char * format_quality(int qual)
  83 {
  84         static char buf[8];
  85
  86         if (qual < 0)
  87                 snprintf(buf, sizeof(buf), "unknown");
  88         else
  89                 snprintf(buf, sizeof(buf), "%d", qual);
  90
  91         return buf;
  92 }
  93
  94 static char * format_quality_max(int qmax)
  95 {
  96         static char buf[8];
  97
  98         if (qmax < 0)
  99                 snprintf(buf, sizeof(buf), "unknown");
 100         else
 101                 snprintf(buf, sizeof(buf), "%d", qmax);
 102
 103         return buf;
 104 }
 105
 106 static char * format_signal(int sig)
 107 {
 108         static char buf[10];
 109
 110         if (!sig)
 111                 snprintf(buf, sizeof(buf), "unknown");
 112         else
 113                 snprintf(buf, sizeof(buf), "%d dBm", sig);
 114
 115         return buf;
 116 }
 117
 118 static char * format_noise(int noise)
 119 {
 120         static char buf[10];
 121
 122         if (!noise)
 123                 snprintf(buf, sizeof(buf), "unknown");
 124         else
 125                 snprintf(buf, sizeof(buf), "%d dBm", noise);
 126
 127         return buf;
 128 }
 129
 130 static char * format_rate(int rate)
 131 {
 132         static char buf[14];
 133
 134         if (rate <= 0)
 135                 snprintf(buf, sizeof(buf), "unknown");
 136         else
 137                 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
 138                         rate / 1000, (rate % 1000) / 100);
 139
 140         return buf;
 141 }
 142
 143 static char * format_enc_ciphers(int ciphers)
 144 {
 145         static char str[128] = { 0 };
 146         char *pos = str;
 147
 148         if (ciphers & IWINFO_CIPHER_WEP40)
 149                 pos += sprintf(pos, "WEP-40, ");
 150
 151         if (ciphers & IWINFO_CIPHER_WEP104)
 152                 pos += sprintf(pos, "WEP-104, ");
 153
 154         if (ciphers & IWINFO_CIPHER_TKIP)
 155                 pos += sprintf(pos, "TKIP, ");
 156
 157         if (ciphers & IWINFO_CIPHER_CCMP)
 158                 pos += sprintf(pos, "CCMP, ");
 159
 160         if (ciphers & IWINFO_CIPHER_WRAP)
 161                 pos += sprintf(pos, "WRAP, ");
 162
 163         if (ciphers & IWINFO_CIPHER_AESOCB)
 164                 pos += sprintf(pos, "AES-OCB, ");
 165
 166         if (ciphers & IWINFO_CIPHER_CKIP)
 167                 pos += sprintf(pos, "CKIP, ");
 168
 169         if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
 170                 pos += sprintf(pos, "NONE, ");
 171
 172         *(pos - 2) = 0;
 173
 174         return str;
 175 }
 176
 177 static char * format_enc_suites(int suites)
 178 {
 179         static char str[64] = { 0 };
 180         char *pos = str;
 181
 182         if (suites & IWINFO_KMGMT_PSK)
 183                 pos += sprintf(pos, "PSK/");
 184
 185         if (suites & IWINFO_KMGMT_8021x)
 186                 pos += sprintf(pos, "802.1X/");
 187
 188         if (!suites || (suites & IWINFO_KMGMT_NONE))
 189                 pos += sprintf(pos, "NONE/");
 190
 191         *(pos - 1) = 0;
 192
 193         return str;
 194 }
 195
 196 static char * format_encryption(struct iwinfo_crypto_entry *c)
 197 {
 198         static char buf[512];
 199
 200         if (!c)
 201         {
 202                 snprintf(buf, sizeof(buf), "unknown");
 203         }
 204         else if (c->enabled)
 205         {
 206                 /* WEP */
 207                 if (c->auth_algs && !c->wpa_version)
 208                 {
 209                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 210                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 211                         {
 212                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 213                                         format_enc_ciphers(c->pair_ciphers));
 214                         }
 215                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 216                         {
 217                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 218                                         format_enc_ciphers(c->pair_ciphers));
 219                         }
 220                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 221                         {
 222                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 223                                         format_enc_ciphers(c->pair_ciphers));
 224                         }
 225                 }
 226
 227                 /* WPA */
 228                 else if (c->wpa_version)
 229                 {
 230                         switch (c->wpa_version) {
 231                                 case 3:
 232                                         snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
 233                                                 format_enc_suites(c->auth_suites),
 234                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 235                                         break;
 236
 237                                 case 2:
 238                                         snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
 239                                                 format_enc_suites(c->auth_suites),
 240                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 241                                         break;
 242
 243                                 case 1:
 244                                         snprintf(buf, sizeof(buf), "WPA %s (%s)",
 245                                                 format_enc_suites(c->auth_suites),
 246                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 247                                         break;
 248                         }
 249                 }
 250                 else
 251                 {
 252                         snprintf(buf, sizeof(buf), "none");
 253                 }
 254         }
 255         else
 256         {
 257                 snprintf(buf, sizeof(buf), "none");
 258         }
 259
 260         return buf;
 261 }
 262
 263 static char * format_hwmodes(int modes)
 264 {
 265         static char buf[12];
 266
 267         if (modes <= 0)
 268                 snprintf(buf, sizeof(buf), "unknown");
 269         else
 270                 snprintf(buf, sizeof(buf), "802.11%s%s%s%s",
 271                         (modes & IWINFO_80211_A) ? "a" : "",
 272                         (modes & IWINFO_80211_B) ? "b" : "",
 273                         (modes & IWINFO_80211_G) ? "g" : "",
 274                         (modes & IWINFO_80211_N) ? "n" : "");
 275
 276         return buf;
 277 }
 278
 279 static char * format_assocrate(struct iwinfo_rate_entry *r)
 280 {
 281         static char buf[40];
 282         char *p = buf;
 283         int l = sizeof(buf);
 284
 285         if (r->rate <= 0)
 286         {
 287                 snprintf(buf, sizeof(buf), "unknown");
 288         }
 289         else
 290         {
 291                 p += snprintf(p, l, "%s", format_rate(r->rate));
 292                 l = sizeof(buf) - (p - buf);
 293
 294                 if (r->mcs >= 0)
 295                 {
 296                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
 297                         l = sizeof(buf) - (p - buf);
 298
 299                         if (r->is_short_gi)
 300                                 p += snprintf(p, l, ", short GI");
 301                 }
 302         }
 303
 304         return buf;
 305 }
 306
 307
 308 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 309 {
 310         const char *type = iwinfo_type(ifname);
 311         return type ? type : "unknown";
 312 }
 313
 314 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 315 {
 316         static char buf[20];
 317         struct iwinfo_hardware_id ids;
 318
 319         if (!iw->hardware_id(ifname, (char *)&ids))
 320         {
 321                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 322                         ids.vendor_id, ids.device_id,
 323                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 324         }
 325         else
 326         {
 327                 snprintf(buf, sizeof(buf), "unknown");
 328         }
 329
 330         return buf;
 331 }
 332
 333 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 334 {
 335         static char buf[128];
 336
 337         if (iw->hardware_name(ifname, buf))
 338                 snprintf(buf, sizeof(buf), "unknown");
 339
 340         return buf;
 341 }
 342
 343 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 344 {
 345         int off;
 346         static char buf[12];
 347
 348         if (iw->txpower_offset(ifname, &off))
 349                 snprintf(buf, sizeof(buf), "unknown");
 350         else if (off != 0)
 351                 snprintf(buf, sizeof(buf), "%d dB", off);
 352         else
 353                 snprintf(buf, sizeof(buf), "none");
 354
 355         return buf;
 356 }
 357
 358 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 359 {
 360         int off;
 361         static char buf[12];
 362
 363         if (iw->frequency_offset(ifname, &off))
 364                 snprintf(buf, sizeof(buf), "unknown");
 365         else if (off != 0)
 366                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 367         else
 368                 snprintf(buf, sizeof(buf), "none");
 369
 370         return buf;
 371 }
 372
 373 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 374 {
 375         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 376
 377         if (iw->ssid(ifname, buf))
 378                 memset(buf, 0, sizeof(buf));
 379
 380         return format_ssid(buf);
 381 }
 382
 383 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 384 {
 385         static char buf[18] = { 0 };
 386
 387         if (iw->bssid(ifname, buf))
 388                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 389
 390         return buf;
 391 }
 392
 393 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 394 {
 395         int mode;
 396         static char buf[128];
 397
 398         if (iw->mode(ifname, &mode))
 399                 mode = IWINFO_OPMODE_UNKNOWN;
 400
 401         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 402
 403         return buf;
 404 }
 405
 406 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 407 {
 408         int ch;
 409         if (iw->channel(ifname, &ch))
 410                 ch = -1;
 411
 412         return format_channel(ch);
 413 }
 414
 415 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 416 {
 417         int freq;
 418         if (iw->frequency(ifname, &freq))
 419                 freq = -1;
 420
 421         return format_frequency(freq);
 422 }
 423
 424 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 425 {
 426         int pwr, off;
 427         if (iw->txpower_offset(ifname, &off))
 428                 off = 0;
 429
 430         if (iw->txpower(ifname, &pwr))
 431                 pwr = -1;
 432         else
 433                 pwr += off;
 434
 435         return format_txpower(pwr);
 436 }
 437
 438 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 439 {
 440         int qual;
 441         if (iw->quality(ifname, &qual))
 442                 qual = -1;
 443
 444         return format_quality(qual);
 445 }
 446
 447 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 448 {
 449         int qmax;
 450         if (iw->quality_max(ifname, &qmax))
 451                 qmax = -1;
 452
 453         return format_quality_max(qmax);
 454 }
 455
 456 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 457 {
 458         int sig;
 459         if (iw->signal(ifname, &sig))
 460                 sig = 0;
 461
 462         return format_signal(sig);
 463 }
 464
 465 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 466 {
 467         int noise;
 468         if (iw->noise(ifname, &noise))
 469                 noise = 0;
 470
 471         return format_noise(noise);
 472 }
 473
 474 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 475 {
 476         int rate;
 477         if (iw->bitrate(ifname, &rate))
 478                 rate = -1;
 479
 480         return format_rate(rate);
 481 }
 482
 483 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 484 {
 485         struct iwinfo_crypto_entry c = { 0 };
 486         if (iw->encryption(ifname, (char *)&c))
 487                 return format_encryption(NULL);
 488
 489         return format_encryption(&c);
 490 }
 491
 492 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 493 {
 494         int modes;
 495         if (iw->hwmodelist(ifname, &modes))
 496                 modes = -1;
 497
 498         return format_hwmodes(modes);
 499 }
 500
 501 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 502 {
 503         int supp;
 504         static char buf[4];
 505
 506         if (iw->mbssid_support(ifname, &supp))
 507                 snprintf(buf, sizeof(buf), "no");
 508         else
 509                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 510
 511         return buf;
 512 }
 513
 514
 515 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 516 {
 517         printf("%-9s ESSID: %s\n",
 518                 ifname,
 519                 print_ssid(iw, ifname));
 520         printf("          Access Point: %s\n",
 521                 print_bssid(iw, ifname));
 522         printf("          Mode: %s  Channel: %s (%s)\n",
 523                 print_mode(iw, ifname),
 524                 print_channel(iw, ifname),
 525                 print_frequency(iw, ifname));
 526         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 527                 print_txpower(iw, ifname),
 528                 print_quality(iw, ifname),
 529                 print_quality_max(iw, ifname));
 530         printf("          Signal: %s  Noise: %s\n",
 531                 print_signal(iw, ifname),
 532                 print_noise(iw, ifname));
 533         printf("          Bit Rate: %s\n",
 534                 print_rate(iw, ifname));
 535         printf("          Encryption: %s\n",
 536                 print_encryption(iw, ifname));
 537         printf("          Type: %s  HW Mode(s): %s\n",
 538                 print_type(iw, ifname),
 539                 print_hwmodes(iw, ifname));
 540         printf("          Hardware: %s [%s]\n",
 541                 print_hardware_id(iw, ifname),
 542                 print_hardware_name(iw, ifname));
 543         printf("          TX power offset: %s\n",
 544                 print_txpower_offset(iw, ifname));
 545         printf("          Frequency offset: %s\n",
 546                 print_frequency_offset(iw, ifname));
 547         printf("          Supports VAPs: %s\n",
 548                 print_mbssid_supp(iw, ifname));
 549 }
 550
 551
 552 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 553 {
 554         int i, x, len;
 555         char buf[IWINFO_BUFSIZE];
 556         struct iwinfo_scanlist_entry *e;
 557
 558         if (iw->scanlist(ifname, buf, &len))
 559         {
 560                 printf("Scanning not possible\n\n");
 561                 return;
 562         }
 563         else if (len <= 0)
 564         {
 565                 printf("No scan results\n\n");
 566                 return;
 567         }
 568
 569         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 570         {
 571                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 572
 573                 printf("Cell %02d - Address: %s\n",
 574                         x,
 575                         format_bssid(e->mac));
 576                 printf("          ESSID: %s\n",
 577                         format_ssid(e->ssid));
 578                 printf("          Mode: %s  Channel: %s\n",
 579                         IWINFO_OPMODE_NAMES[e->mode],
 580                         format_channel(e->channel));
 581                 printf("          Signal: %s  Quality: %s/%s\n",
 582                         format_signal(e->signal - 0x100),
 583                         format_quality(e->quality),
 584                         format_quality_max(e->quality_max));
 585                 printf("          Encryption: %s\n\n",
 586                         format_encryption(&e->crypto));
 587         }
 588 }
 589
 590
 591 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 592 {
 593         int len, pwr, off, i;
 594         char buf[IWINFO_BUFSIZE];
 595         struct iwinfo_txpwrlist_entry *e;
 596
 597         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 598         {
 599                 printf("No TX power information available\n");
 600                 return;
 601         }
 602
 603         if (iw->txpower(ifname, &pwr))
 604                 pwr = -1;
 605
 606         if (iw->txpower_offset(ifname, &off))
 607                 off = 0;
 608
 609         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 610         {
 611                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 612
 613                 printf("%s%3d dBm (%4d mW)\n",
 614                         (pwr == e->dbm) ? "*" : " ",
 615                         e->dbm + off,
 616                         iwinfo_dbm2mw(e->dbm + off));
 617         }
 618 }
 619
 620
 621 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 622 {
 623         int i, len, ch;
 624         char buf[IWINFO_BUFSIZE];
 625         struct iwinfo_freqlist_entry *e;
 626
 627         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 628         {
 629                 printf("No frequency information available\n");
 630                 return;
 631         }
 632
 633         if (iw->channel(ifname, &ch))
 634                 ch = -1;
 635
 636         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 637         {
 638                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 639
 640                 printf("%s %s (Channel %s)%s\n",
 641                         (ch == e->channel) ? "*" : " ",
 642                         format_frequency(e->mhz),
 643                         format_channel(e->channel),
 644                         e->restricted ? " [restricted]" : "");
 645         }
 646 }
 647
 648
 649 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 650 {
 651         int i, len;
 652         char buf[IWINFO_BUFSIZE];
 653         struct iwinfo_assoclist_entry *e;
 654
 655         if (iw->assoclist(ifname, buf, &len))
 656         {
 657                 printf("No information available\n");
 658                 return;
 659         }
 660         else if (len <= 0)
 661         {
 662                 printf("No station connected\n");
 663                 return;
 664         }
 665
 666         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 667         {
 668                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 669
 670                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 671                         format_bssid(e->mac),
 672                         format_signal(e->signal),
 673                         format_noise(e->noise),
 674                         (e->signal - e->noise),
 675                         e->inactive);
 676
 677                 printf("        RX: %-38s  %8d Pkts.\n",
 678                         format_assocrate(&e->rx_rate),
 679                         e->rx_packets
 680                 );
 681
 682                 printf("        TX: %-38s  %8d Pkts.\n\n",
 683                         format_assocrate(&e->tx_rate),
 684                         e->tx_packets
 685                 );
 686         }
 687 }
 688
 689
 690 static char * lookup_country(char *buf, int len, int iso3166)
 691 {
 692         int i;
 693         struct iwinfo_country_entry *c;
 694
 695         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 696         {
 697                 c = (struct iwinfo_country_entry *) &buf[i];
 698
 699                 if (c->iso3166 == iso3166)
 700                         return c->ccode;
 701         }
 702
 703         return NULL;
 704 }
 705
 706 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 707 {
 708         int len;
 709         char buf[IWINFO_BUFSIZE];
 710         char *ccode;
 711         char curcode[3];
 712         const struct iwinfo_iso3166_label *l;
 713
 714         if (iw->countrylist(ifname, buf, &len))
 715         {
 716                 printf("No country code information available\n");
 717                 return;
 718         }
 719
 720         if (iw->country(ifname, curcode))
 721                 memset(curcode, 0, sizeof(curcode));
 722
 723         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 724         {
 725                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 726                 {
 727                         printf("%s %4s  %c%c\n",
 728                                 strncmp(ccode, curcode, 2) ? " " : "*",
 729                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 730                 }
 731         }
 732 }
 733
 734
 735 int main(int argc, char **argv)
 736 {
 737         int i;
 738         const struct iwinfo_ops *iw;
 739
 740         if (argc < 3)
 741         {
 742                 fprintf(stderr,
 743                         "Usage:\n"
 744                         "       iwinfo <device> info\n"
 745                         "       iwinfo <device> scan\n"
 746                         "       iwinfo <device> txpowerlist\n"
 747                         "       iwinfo <device> freqlist\n"
 748                         "       iwinfo <device> assoclist\n"
 749                         "       iwinfo <device> countrylist\n"
 750                 );
 751
 752                 return 1;
 753         }
 754
 755         iw = iwinfo_backend(argv[1]);
 756
 757         if (!iw)
 758         {
 759                 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 760                 return 1;
 761         }
 762
 763         for (i = 2; i < argc; i++)
 764         {
 765                 switch(argv[i][0])
 766                 {
 767                 case 'i':
 768                         print_info(iw, argv[1]);
 769                         break;
 770
 771                 case 's':
 772                         print_scanlist(iw, argv[1]);
 773                         break;
 774
 775                 case 't':
 776                         print_txpwrlist(iw, argv[1]);
 777                         break;
 778
 779                 case 'f':
 780                         print_freqlist(iw, argv[1]);
 781                         break;
 782
 783                 case 'a':
 784                         print_assoclist(iw, argv[1]);
 785                         break;
 786
 787                 case 'c':
 788                         print_countrylist(iw, argv[1]);
 789                         break;
 790
 791                 default:
 792                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
 793                         return 1;
 794                 }
 795         }
 796
 797         iwinfo_finish();
 798
 799         return 0;
 800 }