/*
* $Log$
+ * Revision 1.24 2008/02/28 22:00:42 james
+ * *** empty log message ***
+ *
+ * Revision 1.23 2008/02/28 16:57:51 james
+ * *** empty log message ***
+ *
+ * Revision 1.22 2008/02/28 01:47:44 james
+ * *** empty log message ***
+ *
+ * Revision 1.21 2008/02/27 16:01:24 james
+ * *** empty log message ***
+ *
+ * Revision 1.20 2008/02/27 10:00:34 james
+ * *** empty log message ***
+ *
+ * Revision 1.19 2008/02/27 09:47:05 james
+ * *** empty log message ***
+ *
+ * Revision 1.18 2008/02/27 09:42:53 james
+ * *** empty log message ***
+ *
+ * Revision 1.17 2008/02/27 09:42:21 james
+ * *** empty log message ***
+ *
+ * Revision 1.16 2008/02/27 01:31:38 james
+ * *** empty log message ***
+ *
+ * Revision 1.15 2008/02/27 01:31:14 james
+ * *** empty log message ***
+ *
* Revision 1.14 2008/02/24 00:43:55 james
* *** empty log message ***
*
#include <string.h>
#include <strings.h>
#include <malloc.h>
+#include <fcntl.h>
#include "mainloop.h"
int c;
extern char *optarg;
extern int optind, opterr, optopt;
+ CRT_Pos size = { VT102_COLS_80, VT102_ROWS_24 };
+
+ int csnok_pipe[2] = { 0 };
+ int csnok = 0;
int oflags[128];
char *oargs[128];
Log *log = NULL;
int history = 200;
-
+ int pid;
get_hostname ();
memset (oflags, 0, sizeof (oflags));
memset (oargs, 0, sizeof (oargs));
-#if 0
- "sympathy -t [-K] [-d serialdev|-p] [-b baud] [-f] [-L log]\n"
- "sympathy -s [-K] [-d serialdev|-p] [-b baud] [-f] [-L log] [-F] [-k skt]\n"
- " [-n hlines]\n"
- "sympathy [-s -c] [-K] [-d serialdev|-p] [-b baud] [-f] [-L log] [-k skt]\n"
- " [-n hlines]\n"
- "sympathy -c [-H] -k skt\n"
- "sympathy -r id [-H]\n" "sympathy {-l|-ls}\n"
-#endif
- while ((c = getopt (argc, argv, "utscr:lKHd:pb:fL:Fk:n:")) != EOF)
+ while ((c = getopt (argc, argv, "vw:utscr:lKHd:pb:fL:Fk:n:")) != EOF)
{
switch (c)
{
oflags['s'] = 0;
- if (!oflags['s'] && !oflags['c'] && !oflags['t'] && !oflags['r']
- && !oflags['l'])
- {
- /*If no mode is specified behave like screen */
- oflags['s']++;
- oflags['c']++;
- }
-
-
{
int sum = 0;
sum += oflags['t'];
sum += (oflags['s'] || oflags['c']) ? 1 : 0;
sum += oflags['r'];
sum += oflags['l'];
+ sum += oflags['v'];
+
+ if (!sum)
+ {
+ /*If no mode is specified behave like screen */
+ oflags['s']++;
+ oflags['c']++;
+ sum++;
+ }
if (sum != 1)
- fatal_moan ("specifiy exactly one of ( -c and or -s ), -t, -r and -l");
+ fatal_moan
+ ("specifiy exactly one of ( -c and or -s ), -t, -r, -l and -v");
}
+ if (oflags['v'])
+ {
+ fprintf (stderr, "Version: %s\n", libsympathy_version ());
+ fprintf (stderr, "Version: %s\n", rcsid);
+ return 0;
+ }
if (oflags['l'])
return list_sockets ();
/*Fold -r into -c */
if (oflags['r'])
{
- int id = safe_atoi (oargs['r']);
+ char *id = oargs['r'];
if (id < 0)
fatal_moan ("cannot parse -r %s as an integer", oargs['r']);
oflags['k']++;
- oargs['k'] = mome ("/.sympathy/%s%d", hostname, id);
+ if (safe_atoi (id) > 0)
+ {
+ oargs['k'] = mome ("/.sympathy/%s%d", hostname, safe_atoi (id));
+ }
+ else
+ {
+ oargs['k'] = mome ("/.sympathy/%s", id);
+ }
oflags['r'] = 0;
oflags['c']++;
}
if (oflags['p'] && oflags['d'])
fatal_moan ("-p incompatible with -d");
- /*implement server and client by opening the server socket to prevent */
- /*a race condition, and then forking and munging the cmd line options */
- /*in the parent and child so that the child is the server and the */
- /*parent becomes its client */
if (oflags['c'] && oflags['s'] && oflags['F'])
fatal_moan ("-F is incompatible with -c -s");
- if (oflags['s'] && !oflags['k'])
- {
- char *path;
- path = mome ("/.sympathy");
- mkdir (path, 0700);
- free (path);
-
- oargs['k'] = mome ("/.sympathy/%s%d", hostname, getpid ());
- oflags['k']++;
- }
-
- if (oflags['s'])
- {
- server_socket = socket_listen (oargs['k']);
- if (!server_socket)
- fatal_moan ("failed to create socket %s for listening", oargs['k']);
- }
+ /*implement server and client: this process forks. The parent */
+ /*becomes the client and the child forks again to become the */
+ /*server. If there's no -k argument the client (parent) needs */
+ /*to find out the pid of the server, we use a pipe */
if (oflags['s'] && oflags['c'])
{
- switch (fork ())
+ if (!oflags['k'])
+ {
+ csnok++;
+ pipe (csnok_pipe);
+ }
+
+ switch (pid = fork ())
{
case 0: /*child becomes the server */
oflags['c'] = 0;
oflags['H'] = 0;
+
+ if (csnok)
+ close (csnok_pipe[0]);
break;
case -1:
fatal_moan ("fork failed");
- default:
+ default: /*parent becomes client*/
oflags['s'] = 0;
oflags['K'] = 0;
oflags['d'] = 0;
oflags['f'] = 0;
oflags['L'] = 0;
oflags['n'] = 0;
- if (server_socket)
+ oflags['w'] = 0;
+
+ /*Collect the child*/
+ waitpid (pid, NULL, 0);
+
+ /*if there was no k argument we need to find the*/
+ /*pid of the server process so that we can work out*/
+ /*what the socket is called. The server tells us on*/
+ /*a pipe*/
+
+ if (csnok)
{
- socket_free_parent (server_socket);
- server_socket = NULL;
+ close (csnok_pipe[1]);
+
+ if (read (csnok_pipe[0], &pid, sizeof (pid)) != sizeof (pid))
+ fatal_moan ("Failed to receive pid of server process");
+
+ close (csnok_pipe[0]);
+
+ oargs['k'] = mome ("/.sympathy/%s%d", hostname, pid);
+ oflags['k']++;
}
}
}
+
if (oflags['c'] && !oflags['k'])
fatal_moan ("-c requires a socket to be specified with -s or -k");
oflags['p']++;
}
+ if (oflags['w'])
+ {
+ char buf[128], *ptr;
+ strcpy (buf, oargs['w']);
+ ptr = index (buf, 'x');
+ if (ptr)
+ {
+ *ptr = 0;
+ ptr++;
+ size.y = safe_atoi (ptr);
+ }
+ size.x = safe_atoi (buf);
+
+ if ((size.x > VT102_MAX_COLS) || (size.x < 1))
+ fatal_moan ("-w requires a width between 1 and %d\n", VT102_MAX_COLS);
+
+ if ((size.y > VT102_MAX_ROWS) || (size.y < 1))
+ fatal_moan ("-w requires a height between 1 and %d\n",
+ VT102_MAX_COLS);
+
+ }
+
if (oflags['s'] && !oflags['F'])
{
- daemon (1, 0); /*incase socket is relative path, unlink then will fail */
+ /*nochdir incase socket is relative path, unlink then will fail */
+ daemon (1, 0);
+
+ /*Tell our parent's parent what our pid is */
+ if (csnok)
+ {
+ pid = getpid ();
+
+ write (csnok_pipe[1], &pid, sizeof (pid));
+ close (csnok_pipe[1]);
+ }
}
+ if (oflags['s'] )
+ {
+ char *path;
+ path = mome ("/.sympathy");
+ mkdir (path, 0700);
+ free (path);
+
+
+ if (!oflags['k']) {
+ pid = getpid ();
+
+ oargs['k'] = mome ("/.sympathy/%s%d", hostname, pid);
+ oflags['k']++;
+ }
+
+ server_socket = socket_listen (oargs['k']);
+ if (!server_socket)
+ fatal_moan ("failed to create socket %s for listening", oargs['k']);
+
+ }
+
if (oflags['s'] || oflags['t'])
{
if (oflags['p'])
{
- tty = ptty_open (NULL, NULL);
+ tty = ptty_open (NULL, NULL, &size);
if (!tty)
fatal_moan ("unable to open a ptty");
}
else
{
+ /*HACK-- check that console=device does not occur in */
+ /*/proc/cmdline */
+ if (!oargs['d'])
+ fatal_moan ("no argument to -d");
+
+ {
+ char kernel_cmdline[4096] = { 0 };
+ char search_string[1024] = "console=";
+ char *ptr = oargs['d'];
+ int fd;
+
+ if (!strncmp ("/dev/", ptr, 5))
+ ptr += 5;
+
+ strcat (search_string, ptr);
+
+ fd = open ("/proc/cmdline", O_RDONLY);
+ read (fd, kernel_cmdline, sizeof (kernel_cmdline));
+ close (fd);
+
+ kernel_cmdline[sizeof (kernel_cmdline) - 1] = 0;
+
+ if (strstr (kernel_cmdline, search_string))
+ fatal_moan ("/proc/cmdline contains %s", search_string);
+ }
+
tty =
serial_open (oargs['d'],
oflags['K'] ? SERIAL_LOCK_ACTIVE :
}
}
- mainloop (tty, server_socket, client_socket, ansi, log, history);
+ mainloop (tty, server_socket, client_socket, ansi, log, history, &size);
if (ansi)
{
~ianmdlvl / sympathy.git / blobdiff