int lock_type_unlock(int type)
{
char *name;
char *device;
int i;
int size;
lock_init_locknames();
if (!(device = rindex(setup.modem.device, '/')))
device = setup.modem.device;
else
device++;
i = 0;
while (TRUE)
{
if (locks[i].file == NULL)
{
log(L_WARN, "Lock setup for type %d not found.\n", type);
returnerror();
}
if (locks[i].type == type) break;
i++;
}
size = (strlen(locks[i].file) + strlen(device) + 2);
if ((name = (char *)malloc(size)))
{
printstring(name, locks[i].file, device);
log(L_DEBUG, "Unlocking %s (%s)...\n", locks[i].desc, name);
if (*(locks[i].fd) != -1)
{
lock_unlocking(*(locks[i].fd), 5);
close(*(locks[i].fd));
*(locks[i].fd) = -1;
}
if (unlink(name) != 0)
{
log(L_WARN, "Can't remove lock \"%s\".\n", name);
}
free(name);
returnok();
}
else log(L_FATAL, "Not enough memory to allocate lockname.\n");
returnerror();
}
int cLibVBOX::vboxd_test_response(const char *response)
{
if (strlen(vboxd_message) > (strlen(response) + 1))
{
if (strncmp(response, vboxd_message, strlen(response)) == 0)
{
if (vboxd_message[strlen(response)] == ' ') returnok();
}
}
returnerror();
}
static int lock_unlocking(int fd, int trys)
{
while (trys > 0)
{
if (flock(fd, LOCK_UN) == 0) returnok();
xpause(1000);
trys--;
}
returnerror();
}
static int voice_set_compression(short c)
{
char command[64];
if ((c >= 2) && (c <= 6) && (c != 5))
{
printstring(command, "AT+VSM=%d+VLS=2", c);
log(L_DEBUG, "Setting voice compression \"%s\"...\n", compressions[c]);
return(modem_command(command, "OK|VCON"));
}
log(L_FATAL, "Unknown compression %d - can't set.\n", c);
returnerror();
}
int lock_type_lock(int type)
{
char *name;
char temp[32];
char *device;
int i;
int size;
lock_init_locknames();
if (!(device = rindex(setup.modem.device, '/')))
device = setup.modem.device;
else
device++;
i = 0;
while (TRUE)
{
if (locks[i].file == NULL)
{
log(L_WARN, "Lock setup for type %d not found.\n", type);
returnerror();
}
if (locks[i].type == type) break;
i++;
}
size = (strlen(locks[i].file) + strlen(device) + 2);
if ((name = (char *)malloc(size)))
{
printstring(name, locks[i].file, device);
log(L_DEBUG, "Locking %s (%s)...\n", locks[i].desc, name);
if (*(locks[i].fd) == -1)
{
if ((*(locks[i].fd) = open(name, O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) != -1)
{
if (lock_locking(*(locks[i].fd), 5))
{
printstring(temp, "%d\n", getpid());
write(*(locks[i].fd), temp, strlen(temp));
/*
* Set permissions but make the locks readable to
* all (overrides umask).
*/
permissions_set(name, setup.users.uid, setup.users.gid, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH, (setup.users.umask & ~(S_IRUSR|S_IRGRP|S_IROTH)));
free(name);
returnok();
}
else log(L_FATAL, "Can't lock \"%s\".\n", name);
}
else log(L_FATAL, "Can't create \"%s\".\n", name);
}
else
{
log(L_WARN, "Use existing lock for \"%s\" (%d).\n", name, *(locks[i].fd));
free(name);
returnok();
}
}
else log(L_FATAL, "Not enough memory to allocate lockname.\n");
returnerror();
}
int init_program(char *device, char *gettyrc)
{
struct passwd *passwd;
setup.modem.device = device;
setup.vboxrc = NULL;
setup.vboxrcname[0] = '\0';
setup.vboxctrl[0] = '\0';
setup.spool[0] = '\0';
setup.freespace = 0;
/*
* Initialize the log and start the session. The name of the log
* is stored into the global setup.
*/
if (!log_init()) returnerror();
log(L_INFO, "-----------------------[Begin session]----------------------\n");
log(L_INFO, "Running vbox version %s...\n", VERSION);
/*
* Check the version of the tcl interpreter. On bad version only
* a warning is displayed.
*/
script_check_interpreter();
/*
* Parse vboxgetty.conf. This function will init the most fields
* in the global structure.
*/
if (!getty_get_settings(gettyrc)) returnerror();
/*
* If the UID or GID is 0 (no user is set) return with error and
* exit.
*/
if ((setup.users.uid == 0) || (setup.users.gid == 0))
{
log(L_FATAL, "You *must* set a user/group (not root)!\n");
returnerror();
}
/*
* Get the user settings from /etc/passwd. The name and the home
* directory are stored into the global structure.
*/
if (!(passwd = getpwuid(setup.users.uid)))
{
log(L_FATAL, "Can't get passwd entry for userid %d.\n", setup.users.uid);
returnerror();
}
xstrncpy(setup.users.name, passwd->pw_name, USER_MAX_NAME);
xstrncpy(setup.users.home, passwd->pw_dir , USER_MAX_HOME);
if (!*setup.spool)
{
xstrncpy(setup.spool, SPOOLDIR , SETUP_MAX_SPOOLNAME);
xstrncat(setup.spool, "/" , SETUP_MAX_SPOOLNAME);
xstrncat(setup.spool, setup.users.name, SETUP_MAX_SPOOLNAME);
}
if (!*setup.vboxrcname)
{
xstrncpy(setup.vboxrcname, setup.spool , SETUP_MAX_VBOXRC);
xstrncat(setup.vboxrcname, "/vbox.conf", SETUP_MAX_VBOXRC);
}
log(L_INFO, "User %s's messagebox is \"%s\"...\n", setup.users.name, setup.spool);
log(L_INFO, "User %s's vbox.conf is \"%s\"...\n", setup.users.name, setup.vboxrcname);
/*
* Create the spool directory and set the permissions to the current
* user (with umask).
*/
if ((mkdir(setup.spool, S_IRWXU) == -1) && (errno != EEXIST))
{
log(L_FATAL, "Can't create \"%s\" (%s).\n", setup.spool, strerror(errno));
returnerror();
}
if (!permissions_set(setup.spool, setup.users.uid, setup.users.gid, S_IRWXU|S_IRWXG|S_IRWXO, setup.users.umask))
{
returnerror();
}
/*
* Now we check if 'vboxctrl-stop' exists. If true, loop and watch
* if the files is deleted.
*/
if (ctrl_ishere(setup.spool, CTRL_NAME_STOP))
{
log(L_INFO, "Control file \"%s\" exists - waiting...\n", CTRL_NAME_STOP);
while (ctrl_ishere(setup.spool, CTRL_NAME_STOP))
{
log(L_JUNK, "Control file \"%s\" exists - waiting...\n", CTRL_NAME_STOP);
xpause(5000);
}
log(L_INFO, "Control file deleted - back in business...\n");
}
if (ctrl_ishere(setup.spool, CTRL_NAME_ANSWERNOW))
{
if (!ctrl_remove(setup.spool, CTRL_NAME_ANSWERNOW))
{
log(L_WARN, "Can't remove control file \"%s\"!\n", CTRL_NAME_ANSWERNOW);
}
}
if (ctrl_ishere(setup.spool, CTRL_NAME_REJECT))
{
if (!ctrl_remove(setup.spool, CTRL_NAME_REJECT))
{
log(L_WARN, "Can't remove control file \"%s\"!\n", CTRL_NAME_REJECT);
}
}
/*
* Open the modem device - this *must* done under the rights of
* the root user!
*/
if (!modem_open_port()) returnerror();
/*
* Lock the modem port and create the pid file. After this the
* filepermissions will set to the user, so he can delete this
* files if the getty quit.
*/
if (!lock_type_lock(LCK_PID )) returnerror();
if (!lock_type_lock(LCK_MODEM)) returnerror();
/*
* Drop root privilegs to the current user and set the correct
* umask.
*/
if (!permissions_drop(setup.users.uid, setup.users.gid, setup.users.name, setup.users.home))
{
returnerror();
}
umask(setup.users.umask);
/*
* Load vbox's configuration into memory and initialize the voice
* defaults.
*/
if (!(setup.vboxrc = streamio_open(setup.vboxrcname)))
{
log(L_FATAL, "Can't open \"%s\".\n", setup.vboxrcname);
returnerror();
}
voice_init_section();
/*
* Now the complete global setup structure is filled and can be
* used.
*/
returnok();
}
