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/* $Id: main.c,v 1.58 2008-09-27 20:35:43 niallo Exp $ */
/*
* Copyright (c) 2006, 2007, 2008 Niall O'Higgins <niallo@p2presearch.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <sys/termios.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#if defined(USE_BOEHM_GC)
#include <gc.h>
#endif
#include "includes.h"
#define DEFAULT_WINSIZE 80
#define MAX_WINSIZE 512
#define MESSAGE "hash check"
#define METER "|/-\\"
static void sighandler(int, short, void *);
void usage(void);
extern char *optarg;
extern int optind;
void
usage(void)
{
fprintf(stderr, "usage: unworkable [-s] [-g port] [-p port] [-t tracefile] torrent\n");
exit(1);
}
void
sighandler(int sig, short event, void *arg)
{
switch (sig) {
case SIGTERM:
case SIGINT:
(void)event_loopexit(NULL);
terminate_handler();
}
}
int
main(int argc, char **argv)
{
struct rlimit rlp;
struct torrent *torrent;
struct torrent_piece *tpp;
struct winsize winsize;
struct event ev_sigint;
struct event ev_sigterm;
u_int32_t i;
int ch, j, win_size, percent;
char blurb[MAX_WINSIZE+1];
#if defined(USE_BOEHM_GC)
GC_INIT();
#endif
network_init();
signal_set(&ev_sigint, SIGINT, sighandler, NULL);
signal_set(&ev_sigterm, SIGTERM, sighandler, NULL);
signal_add(&ev_sigint, NULL);
signal_add(&ev_sigterm, NULL);
/* don't die on sigpipe */
signal(SIGPIPE, SIG_IGN);
#if defined(__SVR4) && defined(__sun)
__progname = argv[0];
#endif
while ((ch = getopt(argc, argv, "sg:t:p:")) != -1) {
switch (ch) {
case 't':
unworkable_trace = xstrdup(optarg);
break;
case 'g':
gui_port = xstrdup(optarg);
break;
case 'p':
user_port = xstrdup(optarg);
break;
case 's':
seed = 1;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0)
usage();
if (getrlimit(RLIMIT_NOFILE, &rlp) == -1)
err(1, "getrlimit");
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize) != -1 &&
winsize.ws_col != 0) {
if (winsize.ws_col > MAX_WINSIZE)
win_size = MAX_WINSIZE;
else
win_size = winsize.ws_col;
} else
win_size = DEFAULT_WINSIZE;
win_size += 1; /* trailing \0 */
torrent = torrent_parse_file(argv[0]);
mytorrent = torrent;
torrent_pieces_create(torrent);
/* a little extra info? torrent_print(torrent); */
memset(&blurb, '\0', sizeof(blurb));
snprintf(blurb, sizeof(blurb), "%s ", MESSAGE);
atomicio(vwrite, STDOUT_FILENO, blurb, win_size - 1);
if (torrent_fastresume_load(torrent) == -1) {
for (i = 0; i < torrent->num_pieces; i++) {
tpp = torrent_piece_find(torrent, i);
if (tpp->index != i)
errx(1,
"main: something went wrong, index is %u, should be %u", tpp->index, i);
torrent_piece_map(tpp);
if (!torrent->isnew) {
j = torrent_piece_checkhash(torrent, tpp);
if (j == 0) {
torrent->good_pieces++;
torrent->downloaded += tpp->len;
}
}
torrent_piece_unmap(tpp);
percent = (float)i / torrent->num_pieces * 100;
snprintf(blurb, sizeof(blurb), "\r%s [%3d%%] %c",
MESSAGE, percent, METER[i % 3]);
atomicio(vwrite, STDOUT_FILENO, blurb, win_size - 1);
}
}
/* do we already have everything? */
if (!seed && torrent->good_pieces == torrent->num_pieces) {
printf("\rdownload already complete!\n");
exit(0);
}
srandom(time(NULL));
network_start_torrent(torrent, rlp.rlim_cur);
exit(0);
}
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