package/network/utils/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 #include <glob.h>
  21
  22 #include "iwinfo.h"
  23
  24
  25 static char * format_bssid(unsigned char *mac)
  26 {
  27         static char buf[18];
  28
  29         snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
  30                 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
  31
  32         return buf;
  33 }
  34
  35 static char * format_ssid(char *ssid)
  36 {
  37         static char buf[IWINFO_ESSID_MAX_SIZE+3];
  38
  39         if (ssid && ssid[0])
  40                 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
  41         else
  42                 snprintf(buf, sizeof(buf), "unknown");
  43
  44         return buf;
  45 }
  46
  47 static char * format_channel(int ch)
  48 {
  49         static char buf[8];
  50
  51         if (ch <= 0)
  52                 snprintf(buf, sizeof(buf), "unknown");
  53         else
  54                 snprintf(buf, sizeof(buf), "%d", ch);
  55
  56         return buf;
  57 }
  58
  59 static char * format_frequency(int freq)
  60 {
  61         static char buf[10];
  62
  63         if (freq <= 0)
  64                 snprintf(buf, sizeof(buf), "unknown");
  65         else
  66                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
  67
  68         return buf;
  69 }
  70
  71 static char * format_txpower(int pwr)
  72 {
  73         static char buf[10];
  74
  75         if (pwr < 0)
  76                 snprintf(buf, sizeof(buf), "unknown");
  77         else
  78                 snprintf(buf, sizeof(buf), "%d dBm", pwr);
  79
  80         return buf;
  81 }
  82
  83 static char * format_quality(int qual)
  84 {
  85         static char buf[8];
  86
  87         if (qual < 0)
  88                 snprintf(buf, sizeof(buf), "unknown");
  89         else
  90                 snprintf(buf, sizeof(buf), "%d", qual);
  91
  92         return buf;
  93 }
  94
  95 static char * format_quality_max(int qmax)
  96 {
  97         static char buf[8];
  98
  99         if (qmax < 0)
 100                 snprintf(buf, sizeof(buf), "unknown");
 101         else
 102                 snprintf(buf, sizeof(buf), "%d", qmax);
 103
 104         return buf;
 105 }
 106
 107 static char * format_signal(int sig)
 108 {
 109         static char buf[10];
 110
 111         if (!sig)
 112                 snprintf(buf, sizeof(buf), "unknown");
 113         else
 114                 snprintf(buf, sizeof(buf), "%d dBm", sig);
 115
 116         return buf;
 117 }
 118
 119 static char * format_noise(int noise)
 120 {
 121         static char buf[10];
 122
 123         if (!noise)
 124                 snprintf(buf, sizeof(buf), "unknown");
 125         else
 126                 snprintf(buf, sizeof(buf), "%d dBm", noise);
 127
 128         return buf;
 129 }
 130
 131 static char * format_rate(int rate)
 132 {
 133         static char buf[14];
 134
 135         if (rate <= 0)
 136                 snprintf(buf, sizeof(buf), "unknown");
 137         else
 138                 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
 139                         rate / 1000, (rate % 1000) / 100);
 140
 141         return buf;
 142 }
 143
 144 static char * format_enc_ciphers(int ciphers)
 145 {
 146         static char str[128] = { 0 };
 147         char *pos = str;
 148
 149         if (ciphers & IWINFO_CIPHER_WEP40)
 150                 pos += sprintf(pos, "WEP-40, ");
 151
 152         if (ciphers & IWINFO_CIPHER_WEP104)
 153                 pos += sprintf(pos, "WEP-104, ");
 154
 155         if (ciphers & IWINFO_CIPHER_TKIP)
 156                 pos += sprintf(pos, "TKIP, ");
 157
 158         if (ciphers & IWINFO_CIPHER_CCMP)
 159                 pos += sprintf(pos, "CCMP, ");
 160
 161         if (ciphers & IWINFO_CIPHER_WRAP)
 162                 pos += sprintf(pos, "WRAP, ");
 163
 164         if (ciphers & IWINFO_CIPHER_AESOCB)
 165                 pos += sprintf(pos, "AES-OCB, ");
 166
 167         if (ciphers & IWINFO_CIPHER_CKIP)
 168                 pos += sprintf(pos, "CKIP, ");
 169
 170         if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
 171                 pos += sprintf(pos, "NONE, ");
 172
 173         *(pos - 2) = 0;
 174
 175         return str;
 176 }
 177
 178 static char * format_enc_suites(int suites)
 179 {
 180         static char str[64] = { 0 };
 181         char *pos = str;
 182
 183         if (suites & IWINFO_KMGMT_PSK)
 184                 pos += sprintf(pos, "PSK/");
 185
 186         if (suites & IWINFO_KMGMT_8021x)
 187                 pos += sprintf(pos, "802.1X/");
 188
 189         if (!suites || (suites & IWINFO_KMGMT_NONE))
 190                 pos += sprintf(pos, "NONE/");
 191
 192         *(pos - 1) = 0;
 193
 194         return str;
 195 }
 196
 197 static char * format_encryption(struct iwinfo_crypto_entry *c)
 198 {
 199         static char buf[512];
 200
 201         if (!c)
 202         {
 203                 snprintf(buf, sizeof(buf), "unknown");
 204         }
 205         else if (c->enabled)
 206         {
 207                 /* WEP */
 208                 if (c->auth_algs && !c->wpa_version)
 209                 {
 210                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 211                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 212                         {
 213                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 214                                         format_enc_ciphers(c->pair_ciphers));
 215                         }
 216                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 217                         {
 218                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 219                                         format_enc_ciphers(c->pair_ciphers));
 220                         }
 221                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 222                         {
 223                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 224                                         format_enc_ciphers(c->pair_ciphers));
 225                         }
 226                 }
 227
 228                 /* WPA */
 229                 else if (c->wpa_version)
 230                 {
 231                         switch (c->wpa_version) {
 232                                 case 3:
 233                                         snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
 234                                                 format_enc_suites(c->auth_suites),
 235                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 236                                         break;
 237
 238                                 case 2:
 239                                         snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
 240                                                 format_enc_suites(c->auth_suites),
 241                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 242                                         break;
 243
 244                                 case 1:
 245                                         snprintf(buf, sizeof(buf), "WPA %s (%s)",
 246                                                 format_enc_suites(c->auth_suites),
 247                                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 248                                         break;
 249                         }
 250                 }
 251                 else
 252                 {
 253                         snprintf(buf, sizeof(buf), "none");
 254                 }
 255         }
 256         else
 257         {
 258                 snprintf(buf, sizeof(buf), "none");
 259         }
 260
 261         return buf;
 262 }
 263
 264 static char * format_hwmodes(int modes)
 265 {
 266         static char buf[12];
 267
 268         if (modes <= 0)
 269                 snprintf(buf, sizeof(buf), "unknown");
 270         else
 271                 snprintf(buf, sizeof(buf), "802.11%s%s%s%s",
 272                         (modes & IWINFO_80211_A) ? "a" : "",
 273                         (modes & IWINFO_80211_B) ? "b" : "",
 274                         (modes & IWINFO_80211_G) ? "g" : "",
 275                         (modes & IWINFO_80211_N) ? "n" : "");
 276
 277         return buf;
 278 }
 279
 280 static char * format_assocrate(struct iwinfo_rate_entry *r)
 281 {
 282         static char buf[40];
 283         char *p = buf;
 284         int l = sizeof(buf);
 285
 286         if (r->rate <= 0)
 287         {
 288                 snprintf(buf, sizeof(buf), "unknown");
 289         }
 290         else
 291         {
 292                 p += snprintf(p, l, "%s", format_rate(r->rate));
 293                 l = sizeof(buf) - (p - buf);
 294
 295                 if (r->mcs >= 0)
 296                 {
 297                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
 298                         l = sizeof(buf) - (p - buf);
 299
 300                         if (r->is_short_gi)
 301                                 p += snprintf(p, l, ", short GI");
 302                 }
 303         }
 304
 305         return buf;
 306 }
 307
 308
 309 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 310 {
 311         const char *type = iwinfo_type(ifname);
 312         return type ? type : "unknown";
 313 }
 314
 315 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 316 {
 317         static char buf[20];
 318         struct iwinfo_hardware_id ids;
 319
 320         if (!iw->hardware_id(ifname, (char *)&ids))
 321         {
 322                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 323                         ids.vendor_id, ids.device_id,
 324                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 325         }
 326         else
 327         {
 328                 snprintf(buf, sizeof(buf), "unknown");
 329         }
 330
 331         return buf;
 332 }
 333
 334 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 335 {
 336         static char buf[128];
 337
 338         if (iw->hardware_name(ifname, buf))
 339                 snprintf(buf, sizeof(buf), "unknown");
 340
 341         return buf;
 342 }
 343
 344 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 345 {
 346         int off;
 347         static char buf[12];
 348
 349         if (iw->txpower_offset(ifname, &off))
 350                 snprintf(buf, sizeof(buf), "unknown");
 351         else if (off != 0)
 352                 snprintf(buf, sizeof(buf), "%d dB", off);
 353         else
 354                 snprintf(buf, sizeof(buf), "none");
 355
 356         return buf;
 357 }
 358
 359 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 360 {
 361         int off;
 362         static char buf[12];
 363
 364         if (iw->frequency_offset(ifname, &off))
 365                 snprintf(buf, sizeof(buf), "unknown");
 366         else if (off != 0)
 367                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 368         else
 369                 snprintf(buf, sizeof(buf), "none");
 370
 371         return buf;
 372 }
 373
 374 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 375 {
 376         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 377
 378         if (iw->ssid(ifname, buf))
 379                 memset(buf, 0, sizeof(buf));
 380
 381         return format_ssid(buf);
 382 }
 383
 384 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 385 {
 386         static char buf[18] = { 0 };
 387
 388         if (iw->bssid(ifname, buf))
 389                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 390
 391         return buf;
 392 }
 393
 394 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 395 {
 396         int mode;
 397         static char buf[128];
 398
 399         if (iw->mode(ifname, &mode))
 400                 mode = IWINFO_OPMODE_UNKNOWN;
 401
 402         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 403
 404         return buf;
 405 }
 406
 407 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 408 {
 409         int ch;
 410         if (iw->channel(ifname, &ch))
 411                 ch = -1;
 412
 413         return format_channel(ch);
 414 }
 415
 416 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 417 {
 418         int freq;
 419         if (iw->frequency(ifname, &freq))
 420                 freq = -1;
 421
 422         return format_frequency(freq);
 423 }
 424
 425 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 426 {
 427         int pwr, off;
 428         if (iw->txpower_offset(ifname, &off))
 429                 off = 0;
 430
 431         if (iw->txpower(ifname, &pwr))
 432                 pwr = -1;
 433         else
 434                 pwr += off;
 435
 436         return format_txpower(pwr);
 437 }
 438
 439 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 440 {
 441         int qual;
 442         if (iw->quality(ifname, &qual))
 443                 qual = -1;
 444
 445         return format_quality(qual);
 446 }
 447
 448 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 449 {
 450         int qmax;
 451         if (iw->quality_max(ifname, &qmax))
 452                 qmax = -1;
 453
 454         return format_quality_max(qmax);
 455 }
 456
 457 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 458 {
 459         int sig;
 460         if (iw->signal(ifname, &sig))
 461                 sig = 0;
 462
 463         return format_signal(sig);
 464 }
 465
 466 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 467 {
 468         int noise;
 469         if (iw->noise(ifname, &noise))
 470                 noise = 0;
 471
 472         return format_noise(noise);
 473 }
 474
 475 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 476 {
 477         int rate;
 478         if (iw->bitrate(ifname, &rate))
 479                 rate = -1;
 480
 481         return format_rate(rate);
 482 }
 483
 484 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 485 {
 486         struct iwinfo_crypto_entry c = { 0 };
 487         if (iw->encryption(ifname, (char *)&c))
 488                 return format_encryption(NULL);
 489
 490         return format_encryption(&c);
 491 }
 492
 493 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 494 {
 495         int modes;
 496         if (iw->hwmodelist(ifname, &modes))
 497                 modes = -1;
 498
 499         return format_hwmodes(modes);
 500 }
 501
 502 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 503 {
 504         int supp;
 505         static char buf[4];
 506
 507         if (iw->mbssid_support(ifname, &supp))
 508                 snprintf(buf, sizeof(buf), "no");
 509         else
 510                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 511
 512         return buf;
 513 }
 514
 515 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 516 {
 517         static char buf[32];
 518
 519         if (!iw->phyname(ifname, buf))
 520                 return buf;
 521
 522         return "?";
 523 }
 524
 525
 526 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 527 {
 528         printf("%-9s ESSID: %s\n",
 529                 ifname,
 530                 print_ssid(iw, ifname));
 531         printf("          Access Point: %s\n",
 532                 print_bssid(iw, ifname));
 533         printf("          Mode: %s  Channel: %s (%s)\n",
 534                 print_mode(iw, ifname),
 535                 print_channel(iw, ifname),
 536                 print_frequency(iw, ifname));
 537         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 538                 print_txpower(iw, ifname),
 539                 print_quality(iw, ifname),
 540                 print_quality_max(iw, ifname));
 541         printf("          Signal: %s  Noise: %s\n",
 542                 print_signal(iw, ifname),
 543                 print_noise(iw, ifname));
 544         printf("          Bit Rate: %s\n",
 545                 print_rate(iw, ifname));
 546         printf("          Encryption: %s\n",
 547                 print_encryption(iw, ifname));
 548         printf("          Type: %s  HW Mode(s): %s\n",
 549                 print_type(iw, ifname),
 550                 print_hwmodes(iw, ifname));
 551         printf("          Hardware: %s [%s]\n",
 552                 print_hardware_id(iw, ifname),
 553                 print_hardware_name(iw, ifname));
 554         printf("          TX power offset: %s\n",
 555                 print_txpower_offset(iw, ifname));
 556         printf("          Frequency offset: %s\n",
 557                 print_frequency_offset(iw, ifname));
 558         printf("          Supports VAPs: %s  PHY name: %s\n",
 559                 print_mbssid_supp(iw, ifname),
 560                 print_phyname(iw, ifname));
 561 }
 562
 563
 564 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 565 {
 566         int i, x, len;
 567         char buf[IWINFO_BUFSIZE];
 568         struct iwinfo_scanlist_entry *e;
 569
 570         if (iw->scanlist(ifname, buf, &len))
 571         {
 572                 printf("Scanning not possible\n\n");
 573                 return;
 574         }
 575         else if (len <= 0)
 576         {
 577                 printf("No scan results\n\n");
 578                 return;
 579         }
 580
 581         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 582         {
 583                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 584
 585                 printf("Cell %02d - Address: %s\n",
 586                         x,
 587                         format_bssid(e->mac));
 588                 printf("          ESSID: %s\n",
 589                         format_ssid(e->ssid));
 590                 printf("          Mode: %s  Channel: %s\n",
 591                         IWINFO_OPMODE_NAMES[e->mode],
 592                         format_channel(e->channel));
 593                 printf("          Signal: %s  Quality: %s/%s\n",
 594                         format_signal(e->signal - 0x100),
 595                         format_quality(e->quality),
 596                         format_quality_max(e->quality_max));
 597                 printf("          Encryption: %s\n\n",
 598                         format_encryption(&e->crypto));
 599         }
 600 }
 601
 602
 603 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 604 {
 605         int len, pwr, off, i;
 606         char buf[IWINFO_BUFSIZE];
 607         struct iwinfo_txpwrlist_entry *e;
 608
 609         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 610         {
 611                 printf("No TX power information available\n");
 612                 return;
 613         }
 614
 615         if (iw->txpower(ifname, &pwr))
 616                 pwr = -1;
 617
 618         if (iw->txpower_offset(ifname, &off))
 619                 off = 0;
 620
 621         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 622         {
 623                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 624
 625                 printf("%s%3d dBm (%4d mW)\n",
 626                         (pwr == e->dbm) ? "*" : " ",
 627                         e->dbm + off,
 628                         iwinfo_dbm2mw(e->dbm + off));
 629         }
 630 }
 631
 632
 633 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 634 {
 635         int i, len, ch;
 636         char buf[IWINFO_BUFSIZE];
 637         struct iwinfo_freqlist_entry *e;
 638
 639         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 640         {
 641                 printf("No frequency information available\n");
 642                 return;
 643         }
 644
 645         if (iw->channel(ifname, &ch))
 646                 ch = -1;
 647
 648         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 649         {
 650                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 651
 652                 printf("%s %s (Channel %s)%s\n",
 653                         (ch == e->channel) ? "*" : " ",
 654                         format_frequency(e->mhz),
 655                         format_channel(e->channel),
 656                         e->restricted ? " [restricted]" : "");
 657         }
 658 }
 659
 660
 661 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 662 {
 663         int i, len;
 664         char buf[IWINFO_BUFSIZE];
 665         struct iwinfo_assoclist_entry *e;
 666
 667         if (iw->assoclist(ifname, buf, &len))
 668         {
 669                 printf("No information available\n");
 670                 return;
 671         }
 672         else if (len <= 0)
 673         {
 674                 printf("No station connected\n");
 675                 return;
 676         }
 677
 678         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 679         {
 680                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 681
 682                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 683                         format_bssid(e->mac),
 684                         format_signal(e->signal),
 685                         format_noise(e->noise),
 686                         (e->signal - e->noise),
 687                         e->inactive);
 688
 689                 printf("        RX: %-38s  %8d Pkts.\n",
 690                         format_assocrate(&e->rx_rate),
 691                         e->rx_packets
 692                 );
 693
 694                 printf("        TX: %-38s  %8d Pkts.\n\n",
 695                         format_assocrate(&e->tx_rate),
 696                         e->tx_packets
 697                 );
 698         }
 699 }
 700
 701
 702 static char * lookup_country(char *buf, int len, int iso3166)
 703 {
 704         int i;
 705         struct iwinfo_country_entry *c;
 706
 707         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 708         {
 709                 c = (struct iwinfo_country_entry *) &buf[i];
 710
 711                 if (c->iso3166 == iso3166)
 712                         return c->ccode;
 713         }
 714
 715         return NULL;
 716 }
 717
 718 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 719 {
 720         int len;
 721         char buf[IWINFO_BUFSIZE];
 722         char *ccode;
 723         char curcode[3];
 724         const struct iwinfo_iso3166_label *l;
 725
 726         if (iw->countrylist(ifname, buf, &len))
 727         {
 728                 printf("No country code information available\n");
 729                 return;
 730         }
 731
 732         if (iw->country(ifname, curcode))
 733                 memset(curcode, 0, sizeof(curcode));
 734
 735         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 736         {
 737                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 738                 {
 739                         printf("%s %4s  %c%c\n",
 740                                 strncmp(ccode, curcode, 2) ? " " : "*",
 741                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 742                 }
 743         }
 744 }
 745
 746
 747 int main(int argc, char **argv)
 748 {
 749         int i;
 750         char *p;
 751         const struct iwinfo_ops *iw;
 752         glob_t globbuf;
 753
 754         if (argc > 1 && argc < 3)
 755         {
 756                 fprintf(stderr,
 757                         "Usage:\n"
 758                         "       iwinfo <device> info\n"
 759                         "       iwinfo <device> scan\n"
 760                         "       iwinfo <device> txpowerlist\n"
 761                         "       iwinfo <device> freqlist\n"
 762                         "       iwinfo <device> assoclist\n"
 763                         "       iwinfo <device> countrylist\n"
 764                 );
 765
 766                 return 1;
 767         }
 768
 769         if (argc == 1)
 770         {
 771                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 772
 773                 for (i = 0; i < globbuf.gl_pathc; i++)
 774                 {
 775                         p = strrchr(globbuf.gl_pathv[i], '/');
 776
 777                         if (!p)
 778                                 continue;
 779
 780                         iw = iwinfo_backend(++p);
 781
 782                         if (!iw)
 783                                 continue;
 784
 785                         print_info(iw, p);
 786                         printf("\n");
 787                 }
 788
 789                 globfree(&globbuf);
 790                 return 0;
 791         }
 792
 793         iw = iwinfo_backend(argv[1]);
 794
 795         if (!iw)
 796         {
 797                 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 798                 return 1;
 799         }
 800
 801         for (i = 2; i < argc; i++)
 802         {
 803                 switch(argv[i][0])
 804                 {
 805                 case 'i':
 806                         print_info(iw, argv[1]);
 807                         break;
 808
 809                 case 's':
 810                         print_scanlist(iw, argv[1]);
 811                         break;
 812
 813                 case 't':
 814                         print_txpwrlist(iw, argv[1]);
 815                         break;
 816
 817                 case 'f':
 818                         print_freqlist(iw, argv[1]);
 819                         break;
 820
 821                 case 'a':
 822                         print_assoclist(iw, argv[1]);
 823                         break;
 824
 825                 case 'c':
 826                         print_countrylist(iw, argv[1]);
 827                         break;
 828
 829                 default:
 830                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
 831                         return 1;
 832                 }
 833         }
 834
 835         iwinfo_finish();
 836
 837         return 0;
 838 }