.TH WAVEMON 1 "JANUARY 2009" Linux "User Manuals" .SH NAME wavemon \- a wireless network monitor application .SH SYNOPSIS .B wavemon [-h] [-i .I ifname .B ] [-l] [-r] [-v] .SH DESCRIPTION .B wavemon is a ncurses-based monitoring application for wireless network devices. It displays continuously updated information about signal levels as well as wireless-specific and general network information. Currently, wavemon can be used for monitoring devices supported by the wireless extensions by Jean Tourrilhes , included in kernels version 2.4 and higher. The wavemon interface is separated into several different sections, hereby referred to as "screens". Every screen displays information about distinct parameter types and/or in a special manner. For example, the "info" screen shows the current signal and noise levels as bargraphs, while the level histogram shows the exact same values as a level plot, so their development over time can be seen. On startup, you'll see one of the different monitor screens (which of the screens will actually be displayed depends on your configuration). On the bottom, you'll see a bar showing the available screens along with function key strokes. .LP These screens are currently implemented: .TP .B Info (F1) This is the most "conclusive" of the monitor screens. It displays a condensed overview of all available wireless-specific parameters and network statistics, as well as bar graphs of the current signal and noise levels. There are several sub-sections to further separate the information. At the .B Interface section, the name, ESSID and nickname of the current wireless interface are shown. Below, at the .B Levels section, you can see four bargraphs showing the quality of the link to the next station (if established), the level of the received signal, the current receiver's noise level and the signal-to-noise ration, which gives a good approximation of the overall signal quality. The colour of the signal level bargraph changes from red to yellow and green at fixed levels, while the colour of the noise level graph is adapted to the current signal level (it turns red when the signal-to-noise-ratio gets below 0dB). If the thresholds are associated with any actions, two arrows on the signal level graph will show the positions of the current thresholds. More on this topic later. The .B Statistics section displays packet and byte counters. The first four values, preceded RX and TX, show the current total number of packets received and transceived since the initialization of the interface. The following three values display the number of packets that were discarded from the interface because of invalid network ids, wrong encryption keys and other errors. Below, at the .B Info subsection, various wireless-specific parameters of the interface are displayed. What parameters are actually shown may vary and depends on the capabilities and the operation mode of your network device. The top line shows the current frequency the interface operates on, the sensitivity threshold of the receiver and the transmission power. Below, the operation mode of the interface (managed, ad-hoc...) and, if appropriate, the MAC address of the current access point are displayed. The third line shows the current data transfer speed in Mbit/s and the retransmission and fragmentation thresholds. Whether or not the details about encryption show up in the next line depends on the permissions of the user. Finally, the last line displays the power management parameters, if this feature is available and active. The last section, titled .B Network, shows - you guessed it - network parameters, such as the interface name and hardware address as well as the interface, netmask and broadcast IP addresses. These parameters are not wireless-related. Another keyboard shortcut for this screen is 'i'. .TP .B Level histogram (F2) This is a full-screen histogram plot of the signal/noise levels and the signal-to-noise levels. It shows the level changes with time. Below the plot, the key is shown. If available, the terminfo scanline chars are used in order to enhance the precision of the level plots, i.e. this screen will particularly look nifty in a xterm. .TP .B Access point list (F3) This screen provides a list of MAC addresses specifying the access points within range. This feature is currently _very_ rudimentary and may not even work for you. Stay tuned, as a more useable access point list is on its way. .TP .B Preferences (F7) This screen allows you to change all program options such as interface and level scale parameters, and to save the new settings to the configuration file. Select a parameter with and , then change the value with and . Please refer to the .B wavemonrc man page for an in-depth description of all available settings. .TP .B Help (F8) This page will show an online-help in the near future; it is currently not implemented. .TP .B About (F9) This screen contains information about the current .B wavemon release. .TP .B Quit (F10) The associated function key will immediately exit .B wavemon. An alternative keyboard shortcut for quitting is 'q'. .SH OPTIONS .IP -h print a short explanation of the command line arguments and exit. .IP "-i interface" override autodetection and use the specified interface. .IP -r generate random levels (for testing purposes). .IP -v dump the version number to stdout and exit. .SH ENVIRONMENT VARIABLES .IP "LC_NUMERIC" Influences the grouping of numbers if set. See also .BR locale (1). .SH FILES .I ~/.wavemonrc is the local configuration file for the user. Refer to the .B wavemonrc man page for an in-depth explanation of available settings. .SH BUGS While each release has been tested, bugs are sometimes inevitable. Please help to further improve the state of wavemon by sending all bug reports, and any suggestions or comments, to . Thanks! .SH AUTHOR The original author of wavemon is Jan Morgenstern .LP The current maintainer is Gerrit Renker .SH COPYRIGHT wavemon 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 2, or (at your option) any later version. .LP wavemon 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. .LP You should have received a copy of the GNU General Public License along with wavemon; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. d='n103' href='#n103'>103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 
/* szap -- simple zapping tool for the Linux DVB API
 *
 * szap operates on VDR (http://www.cadsoft.de/people/kls/vdr/index.htm)
 * satellite channel lists (e.g. from http://www.dxandy.de/cgi-bin/dvbchan.pl).
 * szap assumes you have a "Universal LNB" (i.e. with LOFs 9750/10600 MHz).
 *
 * Compilation: `gcc -Wall -I../../ost/include -O2 szap.c -o szap`
 *  or, if your DVB driver is in the kernel source tree:
 *              `gcc -Wall -DDVB_IN_KERNEL -O2 szap.c -o szap`
 *
 * Copyright (C) 2001 Johannes Stezenbach (js@convergence.de)
 * for convergence integrated media
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/poll.h>
#include <sys/param.h>
#include <fcntl.h>
#include <time.h>
#include <unistd.h>

#include <stdint.h>
#include <sys/time.h>

#include <linux/dvb/frontend.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/audio.h>
#include "lnb.h"

#ifndef TRUE
#define TRUE (1==1)
#endif
#ifndef FALSE
#define FALSE (1==0)
#endif

/* location of channel list file */
#define CHANNEL_FILE "channels.conf"

/* one line of the VDR channel file has the following format:
 * ^name:frequency_MHz:polarization:sat_no:symbolrate:vpid:apid:?:service_id$
 */


#define FRONTENDDEVICE "/dev/dvb/adapter%d/frontend%d"
#define DEMUXDEVICE "/dev/dvb/adapter%d/demux%d"
#define AUDIODEVICE "/dev/dvb/adapter%d/audio%d"

static struct lnb_types_st lnb_type;

static int exit_after_tuning;
static int interactive;

static char *usage_str =
    "\nusage: szap -q\n"
    "         list known channels\n"
    "       szap [options] {-n channel-number|channel_name}\n"
    "         zap to channel via number or full name (case insensitive)\n"
    "     -a number : use given adapter (default 0)\n"
    "     -f number : use given frontend (default 0)\n"
    "     -d number : use given demux (default 0)\n"
    "     -c file   : read channels list from 'file'\n"
    "     -b        : enable Audio Bypass (default no)\n"
    "     -x        : exit after tuning\n"
    "     -H        : human readable output\n"
    "     -r        : set up /dev/dvb/adapterX/dvr0 for TS recording\n"
    "     -l lnb-type (DVB-S Only) (use -l help to print types) or \n"
    "     -l low[,high[,switch]] in Mhz\n"
    "     -i        : run interactively, allowing you to type in channel names\n"
    "     -p        : add pat and pmt to TS recording (implies -r)\n"
    "                 or -n numbers for zapping\n";

static int set_demux(int dmxfd, int pid, int pes_type, int dvr)
{
   struct dmx_pes_filter_params pesfilter;

   if (pid < 0 || pid >= 0x1fff) /* ignore this pid to allow radio services */
	   return TRUE;

   if (dvr) {
      int buffersize = 64 * 1024;
      if (ioctl(dmxfd, DMX_SET_BUFFER_SIZE, buffersize) == -1)
        perror("DMX_SET_BUFFER_SIZE failed");
   }

   pesfilter.pid = pid;
   pesfilter.input = DMX_IN_FRONTEND;
   pesfilter.output = dvr ? DMX_OUT_TS_TAP : DMX_OUT_DECODER;
   pesfilter.pes_type = pes_type;
   pesfilter.flags = DMX_IMMEDIATE_START;

   if (ioctl(dmxfd, DMX_SET_PES_FILTER, &pesfilter) == -1) {
      fprintf(stderr, "DMX_SET_PES_FILTER failed "
	      "(PID = 0x%04x): %d %m\n", pid, errno);
      return FALSE;
   }

   return TRUE;
}

int get_pmt_pid(char *dmxdev, int sid)
{
   int patfd, count;
   int pmt_pid = 0;
   int patread = 0;
   int section_length;
   unsigned char buft[4096];
   unsigned char *buf = buft;
   struct dmx_sct_filter_params f;

   memset(&f, 0, sizeof(f));
   f.pid = 0;
   f.filter.filter[0] = 0x00;
   f.filter.mask[0] = 0xff;
   f.timeout = 0;
   f.flags = DMX_IMMEDIATE_START | DMX_CHECK_CRC;

   if ((patfd = open(dmxdev, O_RDWR)) < 0) {
      perror("openening pat demux failed");
      return -1;
   }

   if (ioctl(patfd, DMX_SET_FILTER, &f) == -1) {
      perror("ioctl DMX_SET_FILTER failed");
      close(patfd);
      return -1;
   }

   while (!patread){
      if (((count = read(patfd, buf, sizeof(buft))) < 0) && errno == EOVERFLOW)
         count = read(patfd, buf, sizeof(buft));
      if (count < 0) {
         perror("read_sections: read error");
         close(patfd);
         return -1;
      }

      section_length = ((buf[1] & 0x0f) << 8) | buf[2];
      if (count != section_length + 3)
         continue;

      buf += 8;
      section_length -= 8;

      patread = 1; /* assumes one section contains the whole pat */
      while (section_length > 0) {
         int service_id = (buf[0] << 8) | buf[1];
         if (service_id == sid) {
            pmt_pid = ((buf[2] & 0x1f) << 8) | buf[3];
            section_length = 0;
         }
         buf += 4;
         section_length -= 4;
     }
   }

   close(patfd);
   return pmt_pid;
}

struct diseqc_cmd {
   struct dvb_diseqc_master_cmd cmd;
   uint32_t wait;
};

void diseqc_send_msg(int fd, fe_sec_voltage_t v, struct diseqc_cmd *cmd,
		     fe_sec_tone_mode_t t, fe_sec_mini_cmd_t b)
{
   if (ioctl(fd, FE_SET_TONE, SEC_TONE_OFF) == -1)
      perror("FE_SET_TONE failed");
   if (ioctl(fd, FE_SET_VOLTAGE, v) == -1)
      perror("FE_SET_VOLTAGE failed");
   usleep(15 * 1000);
   if (ioctl(fd, FE_DISEQC_SEND_MASTER_CMD, &cmd->cmd) == -1)
      perror("FE_DISEQC_SEND_MASTER_CMD failed");
   usleep(cmd->wait * 1000);
   usleep(15 * 1000);
   if (ioctl(fd, FE_DISEQC_SEND_BURST, b) == -1)
      perror("FE_DISEQC_SEND_BURST failed");
   usleep(15 * 1000);
   if (ioctl(fd, FE_SET_TONE, t) == -1)
      perror("FE_SET_TONE failed");
}




/* digital satellite equipment control,
 * specification is available from http://www.eutelsat.com/
 */
static int diseqc(int secfd, int sat_no, int pol_vert, int hi_band)
{
   struct diseqc_cmd cmd =
       { {{0xe0, 0x10, 0x38, 0xf0, 0x00, 0x00}, 4}, 0 };

   /* param: high nibble: reset bits, low nibble set bits,
    * bits are: option, position, polarization, band
    */
   cmd.cmd.msg[3] =
       0xf0 | (((sat_no * 4) & 0x0f) | (hi_band ? 1 : 0) | (pol_vert ? 0 : 2));

   diseqc_send_msg(secfd, pol_vert ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18,
		   &cmd, hi_band ? SEC_TONE_ON : SEC_TONE_OFF,
		   sat_no % 2 ? SEC_MINI_B : SEC_MINI_A);

   return TRUE;
}

static int do_tune(int fefd, unsigned int ifreq, unsigned int sr)
{
   struct dvb_frontend_parameters tuneto;
   struct dvb_frontend_event ev;

   /* discard stale QPSK events */
   while (1) {
      if (ioctl(fefd, FE_GET_EVENT, &ev) == -1)
	 break;
   }

   tuneto.frequency = ifreq;
   tuneto.inversion = INVERSION_AUTO;
   tuneto.u.qpsk.symbol_rate = sr;
   tuneto.u.qpsk.fec_inner = FEC_AUTO;

   if (ioctl(fefd, FE_SET_FRONTEND, &tuneto) == -1) {
      perror("FE_SET_FRONTEND failed");
      return FALSE;
   }

   return TRUE;
}


static
int check_frontend (int fe_fd, int dvr, int human_readable)
{
   (void)dvr;
   fe_status_t status;
   uint16_t snr, signal;
   uint32_t ber, uncorrected_blocks;
   int timeout = 0;

   do {
      if (ioctl(fe_fd, FE_READ_STATUS, &status) == -1)
         perror("FE_READ_STATUS failed");
      /* some frontends might not support all these ioctls, thus we
       * avoid printing errors */
      if (ioctl(fe_fd, FE_READ_SIGNAL_STRENGTH, &signal) == -1)
         signal = -2;
      if (ioctl(fe_fd, FE_READ_SNR, &snr) == -1)
         snr = -2;
      if (ioctl(fe_fd, FE_READ_BER, &ber) == -1)
         ber = -2;
      if (ioctl(fe_fd, FE_READ_UNCORRECTED_BLOCKS, &uncorrected_blocks) == -1)
         uncorrected_blocks = -2;

	if (human_readable) {
		printf ("status %02x | signal %3u%% | snr %3u%% | ber %d | unc %d | ",
			status, (signal * 100) / 0xffff, (snr * 100) / 0xffff, ber, uncorrected_blocks);
	} else {
		printf ("status %02x | signal %04x | snr %04x | ber %08x | unc %08x | ",
			status, signal, snr, ber, uncorrected_blocks);
	}

      if (status & FE_HAS_LOCK)
	 printf("FE_HAS_LOCK");
      printf("\n");

      if (exit_after_tuning && ((status & FE_HAS_LOCK) || (++timeout >= 10)))
         break;

      usleep(1000000);
   } while (1);

   return 0;
}


static
int zap_to(unsigned int adapter, unsigned int frontend, unsigned int demux,
      unsigned int sat_no, unsigned int freq, unsigned int pol,
      unsigned int sr, unsigned int vpid, unsigned int apid, int sid,
      int dvr, int rec_psi, int bypass, int human_readable)
{
   char fedev[128], dmxdev[128], auddev[128];
   static int fefd, dmxfda, dmxfdv, audiofd = -1, patfd, pmtfd;
   int pmtpid;
   uint32_t ifreq;
   int hiband, result;
   static struct dvb_frontend_info fe_info;

   if (!fefd) {
      snprintf(fedev, sizeof(fedev), FRONTENDDEVICE, adapter, frontend);
      snprintf(dmxdev, sizeof(dmxdev), DEMUXDEVICE, adapter, demux);
      snprintf(auddev, sizeof(auddev), AUDIODEVICE, adapter, demux);
      printf("using '%s' and '%s'\n", fedev, dmxdev);

      if ((fefd = open(fedev, O_RDWR | O_NONBLOCK)) < 0) {
	 perror("opening frontend failed");
	 return FALSE;
      }

      result = ioctl(fefd, FE_GET_INFO, &fe_info);

      if (result < 0) {
	 perror("ioctl FE_GET_INFO failed");
	 close(fefd);
	 return FALSE;
      }

      if (fe_info.type != FE_QPSK) {
	 fprintf(stderr, "frontend device is not a QPSK (DVB-S) device!\n");
	 close(fefd);
	 return FALSE;
      }

      if ((dmxfdv = open(dmxdev, O_RDWR)) < 0) {
	 perror("opening video demux failed");
	 close(fefd);
	 return FALSE;
      }

      if ((dmxfda = open(dmxdev, O_RDWR)) < 0) {
	 perror("opening audio demux failed");
	 close(fefd);
	 return FALSE;
      }

      if (dvr == 0)	/* DMX_OUT_DECODER */
	 audiofd = open(auddev, O_RDWR);

      if (rec_psi){
         if ((patfd = open(dmxdev, O_RDWR)) < 0) {
	    perror("opening pat demux failed");
	    close(audiofd);
	    close(dmxfda);
	    close(dmxfdv);
	    close(fefd);
	    return FALSE;
         }

         if ((pmtfd = open(dmxdev, O_RDWR)) < 0) {
	    perror("opening pmt demux failed");
	    close(patfd);
	    close(audiofd);
	    close(dmxfda);
	    close(dmxfdv);
	    close(fefd);
	    return FALSE;
         }
      }
   }

   hiband = 0;
   if (lnb_type.switch_val && lnb_type.high_val &&
	freq >= lnb_type.switch_val)
	hiband = 1;

   if (hiband)
      ifreq = freq - lnb_type.high_val;
   else {
      if (freq < lnb_type.low_val)
          ifreq = lnb_type.low_val - freq;
      else
          ifreq = freq - lnb_type.low_val;
   }
   result = FALSE;

   if (diseqc(fefd, sat_no, pol, hiband))
      if (do_tune(fefd, ifreq, sr))
	 if (set_demux(dmxfdv, vpid, DMX_PES_VIDEO, dvr))
	    if (audiofd >= 0)
	       (void)ioctl(audiofd, AUDIO_SET_BYPASS_MODE, bypass);
	    if (set_demux(dmxfda, apid, DMX_PES_AUDIO, dvr)) {
	       if (rec_psi) {
	          pmtpid = get_pmt_pid(dmxdev, sid);
		  if (pmtpid < 0) {
		     result = FALSE;
		  }
		  if (pmtpid == 0) {
		     fprintf(stderr,"couldn't find pmt-pid for sid %04x\n",sid);
		     result = FALSE;
		  }
		  if (set_demux(patfd, 0, DMX_PES_OTHER, dvr))
	             if (set_demux(pmtfd, pmtpid, DMX_PES_OTHER, dvr))
	                result = TRUE;
	          } else {
		    result = TRUE;
		  }
	       }

   check_frontend (fefd, dvr, human_readable);

   if (!interactive) {
      close(patfd);
      close(pmtfd);
      if (audiofd >= 0)
	 close(audiofd);
      close(dmxfda);
      close(dmxfdv);
      close(fefd);
   }

   return result;
}


static int read_channels(const char *filename, int list_channels,
			 uint32_t chan_no, const char *chan_name,
			 unsigned int adapter, unsigned int frontend,
			 unsigned int demux, int dvr, int rec_psi,
			 int bypass, int human_readable)
{
   FILE *cfp;
   char buf[4096];
   char inp[256];
   char *field, *tmp, *p;
   unsigned int line;
   unsigned int freq, pol, sat_no, sr, vpid, apid, sid;
   int ret;

again:
   line = 0;
   if (!(cfp = fopen(filename, "r"))) {
      fprintf(stderr, "error opening channel list '%s': %d %m\n",
	      filename, errno);
      return FALSE;
   }

   if (interactive) {
      fprintf(stderr, "\n>>> ");
      if (!fgets(inp, sizeof(inp), stdin)) {
	 printf("\n");
	 return -1;
      }
      if (inp[0] == '-' && inp[1] == 'n') {
	 chan_no = strtoul(inp+2, NULL, 0);
	 chan_name = NULL;
	 if (!chan_no) {
	    fprintf(stderr, "bad channel number\n");
	    goto again;
	 }
      } else {
	 p = strchr(inp, '\n');
	 if (p)
	    *p = '\0';
	 chan_name = inp;
	 chan_no = 0;
      }
   }

   while (!feof(cfp)) {
      if (fgets(buf, sizeof(buf), cfp)) {
	 line++;

	 if (chan_no && chan_no != line)
	    continue;

	 tmp = buf;
	 field = strsep(&tmp, ":");

	 if (!field)
	    goto syntax_err;

	 if (list_channels) {
	    printf("%03u %s\n", line, field);
	    continue;
	 }

	 if (chan_name && strcasecmp(chan_name, field) != 0)
	    continue;

	 printf("zapping to %d '%s':\n", line, field);

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 freq = strtoul(field, NULL, 0);

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 pol = (field[0] == 'h' ? 0 : 1);

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 sat_no = strtoul(field, NULL, 0);

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 sr = strtoul(field, NULL, 0) * 1000;

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 vpid = strtoul(field, NULL, 0);
	 if (!vpid)
            vpid = 0x1fff;

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 p = strchr(field, ';');

	 if (p) {
	    *p = '\0';
	    p++;
	    if (bypass) {
	       if (!p || !*p)
		  goto syntax_err;
	       field = p;
	    }
	 }

	 apid = strtoul(field, NULL, 0);
	 if (!apid)
            apid = 0x1fff;

	 if (!(field = strsep(&tmp, ":")))
	    goto syntax_err;

	 sid = strtoul(field, NULL, 0);

	 printf("sat %u, frequency = %u MHz %c, symbolrate %u, "
		"vpid = 0x%04x, apid = 0x%04x sid = 0x%04x\n",
		sat_no, freq, pol ? 'V' : 'H', sr, vpid, apid, sid);

	 fclose(cfp);

	 ret = zap_to(adapter, frontend, demux, sat_no, freq * 1000,
		      pol, sr, vpid, apid, sid, dvr, rec_psi, bypass, human_readable);
	 if (interactive)
	    goto again;

	 if (ret)
	    return TRUE;

	 return FALSE;

       syntax_err:
	 fprintf(stderr, "syntax error in line %u: '%s'\n", line, buf);
      } else if (ferror(cfp)) {
	 fprintf(stderr, "error reading channel list '%s': %d %m\n",
		 filename, errno);
	 fclose(cfp);
	 return FALSE;
      } else
	 break;
   }

   fclose(cfp);

   if (!list_channels) {
      fprintf(stderr, "channel not found\n");
      if (!interactive)
	 return FALSE;
   }
   if (interactive)
      goto again;

   return TRUE;
}


void
bad_usage(char *pname, int prlnb)
{
int i;
struct lnb_types_st *lnbp;
char **cp;

	if (!prlnb) {
		fprintf (stderr, usage_str, pname);
	} else {
		i = 0;
		fprintf(stderr, "-l <lnb-type> or -l low[,high[,switch]] in Mhz\nwhere <lnb-type> is:\n");
		while(NULL != (lnbp = lnb_enum(i))) {
			fprintf (stderr, "%s\n", lnbp->name);
			for (cp = lnbp->desc; *cp ; cp++) {
				fprintf (stderr, "   %s\n", *cp);
			}
			i++;
		}
	}
}

int main(int argc, char *argv[])
{
   const char *home;
   char chanfile[2 * PATH_MAX];
   int list_channels = 0;
   unsigned int chan_no = 0;
   const char *chan_name = NULL;
   unsigned int adapter = 0, frontend = 0, demux = 0, dvr = 0, rec_psi = 0;
   int bypass = 0;
   int opt, copt = 0;
   int human_readable = 0;

   lnb_type = *lnb_enum(0);
   while ((opt = getopt(argc, argv, "Hhqrpn:a:f:d:c:l:xib")) != -1) {
      switch (opt)
      {
	 case '?':
	 case 'h':
	 default:
	    bad_usage(argv[0], 0);
	 case 'b':
	    bypass = 1;
	    break;
	 case 'q':
	    list_channels = 1;
	    break;
	 case 'r':
	    dvr = 1;
	    break;
	 case 'n':
	    chan_no = strtoul(optarg, NULL, 0);
	    break;
	 case 'a':
	    adapter = strtoul(optarg, NULL, 0);
	    break;
	 case 'f':
	    frontend = strtoul(optarg, NULL, 0);
	    break;
	 case 'p':
	    rec_psi = 1;
	    break;
	 case 'd':
	    demux = strtoul(optarg, NULL, 0);
	    break;
	 case 'c':
	    copt = 1;
	    strncpy(chanfile, optarg, sizeof(chanfile));
	    break;
	 case 'l':
	    if (lnb_decode(optarg, &lnb_type) < 0) {
		bad_usage(argv[0], 1);
		return -1;
	    }
	    break;
	 case 'x':
	    exit_after_tuning = 1;
	    break;
	case 'H':
	    human_readable = 1;
	    break;
	 case 'i':
	    interactive = 1;
	    exit_after_tuning = 1;
      }
   }
   lnb_type.low_val *= 1000;	/* convert to kiloherz */
   lnb_type.high_val *= 1000;	/* convert to kiloherz */
   lnb_type.switch_val *= 1000;	/* convert to kiloherz */
   if (optind < argc)
      chan_name = argv[optind];
   if (chan_name && chan_no) {
	bad_usage(argv[0], 0);
	return -1;
   }
   if (list_channels && (chan_name || chan_no)) {
	bad_usage(argv[0], 0);
	return -1;
   }
   if (!list_channels && !chan_name && !chan_no && !interactive) {
	bad_usage(argv[0], 0);
	return -1;
   }

   if (!copt) {
       if (!(home = getenv("HOME"))) {
          fprintf(stderr, "error: $HOME not set\n");
          return TRUE;
       }
       snprintf(chanfile, sizeof(chanfile),
		"%s/.szap/%i/%s", home, adapter, CHANNEL_FILE);
       if (access(chanfile, R_OK))
		snprintf(chanfile, sizeof(chanfile),
			 "%s/.szap/%s", home, CHANNEL_FILE);
   }

   printf("reading channels from file '%s'\n", chanfile);

   if (rec_psi)
      dvr=1;

   if (!read_channels(chanfile, list_channels, chan_no, chan_name,
	    adapter, frontend, demux, dvr, rec_psi, bypass, human_readable))
      return TRUE;

   return FALSE;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 19:23:06 +0000