4 * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
14 * Revision 1.22 2008/02/28 01:47:44 james
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53 * Revision 1.9 2008/02/20 18:49:11 staffcvs
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77 * Revision 1.1 2008/02/05 14:25:49 james
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82 #include <sys/types.h>
86 #include <sys/utsname.h>
96 extern void usage (void);
98 static char hostname[1024];
109 ret = (int) strtol (a, &end, 0);
118 fatal_moan (char *fmt, ...)
124 vfprintf (stderr, fmt, ap);
133 /*make the path in fmt from home (hence the name) */
136 mome (char *fmt, ...)
146 home = getenv ("HOME");
150 homelen = strlen (home) + 1;
152 size = 1024 + homelen;
157 fatal_moan ("malloc failed");
167 n = vsnprintf (buf + homelen, size - homelen, fmt, ap);
170 if (n > -1 && n < (size - homelen))
173 if (n > -1) /* glibc 2.1 */
174 size = homelen + n + 1;
176 size *= 2; /* twice the old size */
178 buf = realloc (buf, size);
181 fatal_moan ("malloc failed");
193 char *sockdir = mome ("/.sympathy/");
194 DIR *dir = opendir (sockdir);
198 int hostname_len = strlen (hostname);
201 fatal_moan ("can't examine %s for sockets", sockdir);
206 while ((ent = readdir (dir)))
208 sn = mome (".sympathy/%s", ent->d_name);
209 if (stat (sn, &buf) || (!S_ISSOCK (buf.st_mode)))
215 s = socket_connect (sn);
219 printf ("\t%s (Active)\n", ent->d_name);
224 if (strncmp (ent->d_name, hostname, hostname_len))
226 printf ("\t%s (Unknown - not this host)\n", ent->d_name);
230 printf ("\t%s (Dead, wiped)\n", ent->d_name);
251 strcpy (hostname, "unknown.");
256 strcpy (hostname, name.nodename);
257 strcat (hostname, ".");
262 main (int argc, char *argv[])
266 extern int optind, opterr, optopt;
267 CRT_Pos size = { VT102_COLS_80, VT102_ROWS };
272 Socket *server_socket = NULL, *client_socket = NULL;
282 memset (oflags, 0, sizeof (oflags));
283 memset (oargs, 0, sizeof (oargs));
284 while ((c = getopt (argc, argv, "vw:utscr:lKHd:pb:fL:Fk:n:")) != EOF)
293 if ((c > 64) && (c < 91))
298 else if ((c > 96) && (c < 123))
305 fprintf (stderr, "unknown option %c\n", c);
312 /*Compatability for screen's ls */
320 sum += (oflags['s'] || oflags['c']) ? 1 : 0;
326 /*If no mode is specified behave like screen */
334 ("specifiy exactly one of ( -c and or -s ), -t, -r, -l and -v");
339 fprintf (stderr, "Version: %s\n", libsympathy_version ());
340 fprintf (stderr, "Version: %s\n", rcsid);
345 return list_sockets ();
348 if (oflags['r'] && oflags['k'])
349 fatal_moan ("-k is incompatible with -r");
354 history = safe_atoi (oargs['n']);
356 fatal_moan ("cannot parse -n %s as an integer", oargs['n']);
359 fatal_moan ("agrument to -n must be greater than zero");
365 char *id = oargs['r'];
367 fatal_moan ("cannot parse -r %s as an integer", oargs['r']);
370 if (safe_atoi(id)>0) {
371 oargs['k'] = mome ("/.sympathy/%s%d", hostname, safe_atoi(id));
373 oargs['k'] = mome ("/.sympathy/%s", id);
379 if (oflags['p'] && oflags['d'])
380 fatal_moan ("-p incompatible with -d");
382 /*implement server and client by opening the server socket to prevent */
383 /*a race condition, and then forking and munging the cmd line options */
384 /*in the parent and child so that the child is the server and the */
385 /*parent becomes its client */
387 if (oflags['c'] && oflags['s'] && oflags['F'])
388 fatal_moan ("-F is incompatible with -c -s");
390 if (oflags['s'] && !oflags['k'])
393 path = mome ("/.sympathy");
397 oargs['k'] = mome ("/.sympathy/%s%d", hostname, getpid ());
403 server_socket = socket_listen (oargs['k']);
405 fatal_moan ("failed to create socket %s for listening", oargs['k']);
408 if (oflags['s'] && oflags['c'])
412 case 0: /*child becomes the server */
417 fatal_moan ("fork failed");
430 socket_free_parent (server_socket);
431 server_socket = NULL;
437 if (oflags['c'] && !oflags['k'])
438 fatal_moan ("-c requires a socket to be specified with -s or -k");
440 if ((oflags['p'] || oflags['d'] || oflags['K'] || oflags['b'] || oflags['f']
441 || oflags['L']) && oflags['c'])
442 fatal_moan ("-c or -r are incompatible with -p, -d, -K, -b, -f or -L");
444 if (oflags['t'] || oflags['s'])
446 if (!oflags['p'] && !oflags['d'])
453 strcpy (buf, oargs['w']);
454 ptr = index (buf, 'x');
459 size.y = safe_atoi (ptr);
461 size.x = safe_atoi (buf);
463 if ((size.x > VT102_MAX_COLS) || (size.x < 1))
464 fatal_moan ("-w requires a width between 1 and %d\n", VT102_MAX_COLS);
466 if ((size.y > VT102_ROWS) || (size.y < 1))
467 fatal_moan ("-w requires a height between 1 and %d\n",
472 if (oflags['s'] && !oflags['F'])
474 daemon (1, 0); /*incase socket is relative path, unlink then will fail */
478 if (oflags['s'] || oflags['t'])
483 log = file_log_new (oargs['L']);
485 fatal_moan ("unable to access log file %s", oargs['L']);
490 tty = ptty_open (NULL, NULL, &size);
492 fatal_moan ("unable to open a ptty");
496 /*HACK-- check that console=device does not occur in */
499 fatal_moan("no argument to -d");
502 char kernel_cmdline[4096]={0};
503 char search_string[1024]="console=";
504 char *ptr=oargs['d'];
507 if (!strncmp("/dev/",ptr,5)) ptr+=5;
509 strcat(search_string,ptr);
511 fd=open("/proc/cmdline",O_RDONLY);
512 read(fd,kernel_cmdline,sizeof(kernel_cmdline));
515 kernel_cmdline[sizeof(kernel_cmdline)-1]=0;
517 if (strstr(kernel_cmdline,search_string))
518 fatal_moan("/proc/cmdline contains %s",search_string);
522 serial_open (oargs['d'],
523 oflags['K'] ? SERIAL_LOCK_ACTIVE :
524 SERIAL_LOCK_PASSIVE);
526 fatal_moan ("unable to open serial port %s", oargs['d']);
531 int baud = safe_atoi (oargs['b']);
534 fatal_moan ("Unable to parse baudrate %s", oargs['b']);
536 tty_set_baud (tty, baud);
540 tty_set_flow (tty, oflags['f'] ? 1 : 0);
547 client_socket = socket_connect (oargs['k']);
549 fatal_moan ("failed to connect to socket %s", oargs['k']);
555 if (oflags['c'] || oflags['t'])
560 ansi = ansi_new_html (stdout);
564 terminal_register_handlers ();
566 ansi_new_from_terminal (terminal_open (0, 1),
567 oflags['u'] ? 0 : 1);
568 ansi->reset (ansi, NULL);
572 mainloop (tty, server_socket, client_socket, ansi, log, history, &size);
586 socket_free (server_socket);
588 socket_free (client_socket);
591 printf ("you have now exited sympathy\n");