static void dhcprelay_loop(int *fds, int num_sockets, int max_socket, char **clients,
struct sockaddr_in *server_addr, uint32_t gw_ip)
{
struct dhcpMessage dhcp_msg;
fd_set rfds;
size_t packlen;
socklen_t addr_size;
struct sockaddr_in client_addr;
struct timeval tv;
int i;
while (!dhcprelay_stopflag) {
FD_ZERO(&rfds);
for (i = 0; i < num_sockets; i++)
FD_SET(fds[i], &rfds);
tv.tv_sec = SELECT_TIMEOUT;
tv.tv_usec = 0;
if (select(max_socket + 1, &rfds, NULL, NULL, &tv) > 0) {
/* server */
if (FD_ISSET(fds[0], &rfds)) {
packlen = udhcp_get_packet(&dhcp_msg, fds[0]);
if (packlen > 0) {
pass_back(&dhcp_msg, packlen, fds);
}
}
for (i = 1; i < num_sockets; i++) {
/* clients */
if (!FD_ISSET(fds[i], &rfds))
continue;
addr_size = sizeof(struct sockaddr_in);
packlen = recvfrom(fds[i], &dhcp_msg, sizeof(dhcp_msg), 0,
(struct sockaddr *)(&client_addr), &addr_size);
if (packlen <= 0)
continue;
if (read_interface(clients[i-1], NULL, &dhcp_msg.giaddr, NULL) < 0)
dhcp_msg.giaddr = gw_ip;
pass_on(&dhcp_msg, packlen, i, fds, &client_addr, server_addr);
}
}
xid_expire();
}
}
int main(int argc, char **argv)
{
int childpid;
int sfd = -1;
int fd;
char *p, *ptyslave=NULL;
int i = 1;
int off_argv;
int calculated_pipename = 0;
int highest_pipe_num = 0;
program_name = argv[0];
if(argc<4) {
usage(argv[0]);
exit(1);
}
init_outbuf();
if (!strcmp(argv[1],"-daemon")) {
daemon_init();
++i;
}
off_argv = i;
strn_cpy(pipename, sizeof(pipename), argv[i++]);
strn_cpy(log_dir, sizeof(log_dir), argv[i]);
strn_cpy(statusfile, sizeof(statusfile), log_dir);
strn_cat(statusfile, sizeof(statusfile), STATUSFILENAME);
#ifdef DEBUG
status("%s: pid is : %d\n", argv[0], getpid());
#endif
/* Get values for LOG file handling from the environment */
if ((p = getenv("RUN_ERL_LOG_ALIVE_MINUTES"))) {
log_alive_minutes = atoi(p);
if (!log_alive_minutes) {
ERROR1(LOG_ERR,"Minimum value for RUN_ERL_LOG_ALIVE_MINUTES is 1 "
"(current value is %s)",p);
}
log_activity_minutes = log_alive_minutes / 3;
if (!log_activity_minutes) {
++log_activity_minutes;
}
}
if ((p = getenv("RUN_ERL_LOG_ACTIVITY_MINUTES"))) {
log_activity_minutes = atoi(p);
if (!log_activity_minutes) {
ERROR1(LOG_ERR,"Minimum value for RUN_ERL_LOG_ACTIVITY_MINUTES is 1 "
"(current value is %s)",p);
}
}
if ((p = getenv("RUN_ERL_LOG_ALIVE_FORMAT"))) {
if (strlen(p) > ALIVE_BUFFSIZ) {
ERROR1(LOG_ERR, "RUN_ERL_LOG_ALIVE_FORMAT can contain a maximum of "
"%d characters", ALIVE_BUFFSIZ);
}
strn_cpy(log_alive_format, sizeof(log_alive_format), p);
} else {
strn_cpy(log_alive_format, sizeof(log_alive_format), DEFAULT_LOG_ALIVE_FORMAT);
}
if ((p = getenv("RUN_ERL_LOG_ALIVE_IN_UTC")) && strcmp(p,"0")) {
++log_alive_in_gmt;
}
if ((p = getenv("RUN_ERL_LOG_GENERATIONS"))) {
log_generations = atoi(p);
if (log_generations < LOG_MIN_GENERATIONS)
ERROR1(LOG_ERR,"Minimum RUN_ERL_LOG_GENERATIONS is %d", LOG_MIN_GENERATIONS);
if (log_generations > LOG_MAX_GENERATIONS)
ERROR1(LOG_ERR,"Maximum RUN_ERL_LOG_GENERATIONS is %d", LOG_MAX_GENERATIONS);
}
if ((p = getenv("RUN_ERL_LOG_MAXSIZE"))) {
log_maxsize = atoi(p);
if (log_maxsize < LOG_MIN_MAXSIZE)
ERROR1(LOG_ERR,"Minimum RUN_ERL_LOG_MAXSIZE is %d", LOG_MIN_MAXSIZE);
}
/*
* Create FIFOs and open them
*/
if(*pipename && pipename[strlen(pipename)-1] == '/') {
/* The user wishes us to find a unique pipe name in the specified */
/* directory */
DIR *dirp;
struct dirent *direntp;
calculated_pipename = 1;
dirp = opendir(pipename);
if(!dirp) {
ERRNO_ERR1(LOG_ERR,"Can't access pipe directory '%s'.", pipename);
exit(1);
}
/* Check the directory for existing pipes */
while((direntp=readdir(dirp)) != NULL) {
if(strncmp(direntp->d_name,PIPE_STUBNAME,PIPE_STUBLEN)==0) {
int num = atoi(direntp->d_name+PIPE_STUBLEN+1);
if(num > highest_pipe_num)
highest_pipe_num = num;
}
}
closedir(dirp);
strn_catf(pipename, sizeof(pipename), "%s.%d",
PIPE_STUBNAME, highest_pipe_num+1);
} /* if */
for(;;) {
/* write FIFO - is read FIFO for `to_erl' program */
strn_cpy(fifo1, sizeof(fifo1), pipename);
strn_cat(fifo1, sizeof(fifo1), ".r");
if (create_fifo(fifo1, PERM) < 0) {
ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1);
exit(1);
}
/* read FIFO - is write FIFO for `to_erl' program */
strn_cpy(fifo2, sizeof(fifo2), pipename);
strn_cat(fifo2, sizeof(fifo2), ".w");
/* Check that nobody is running run_erl already */
if ((fd = sf_open(fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) {
/* Open as client succeeded -- run_erl is already running! */
sf_close(fd);
if (calculated_pipename) {
++highest_pipe_num;
strn_catf(pipename, sizeof(pipename), "%s.%d",
PIPE_STUBNAME, highest_pipe_num+1);
continue;
}
fprintf(stderr, "Erlang already running on pipe %s.\n", pipename);
exit(1);
}
if (create_fifo(fifo2, PERM) < 0) {
ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2);
exit(1);
}
break;
}
/*
* Open master pseudo-terminal
*/
if ((mfd = open_pty_master(&ptyslave, &sfd)) < 0) {
ERRNO_ERR0(LOG_ERR,"Could not open pty master");
exit(1);
}
/*
* Now create a child process
*/
if ((childpid = fork()) < 0) {
ERRNO_ERR0(LOG_ERR,"Cannot fork");
exit(1);
}
if (childpid == 0) {
/* Child */
sf_close(mfd);
/* disassociate from control terminal */
#ifdef USE_SETPGRP_NOARGS /* SysV */
setpgrp();
#elif defined(USE_SETPGRP) /* BSD */
setpgrp(0,getpid());
#else /* POSIX */
setsid();
#endif
/* Open the slave pty */
if (sfd < 0) {
/* not allocated by open_pty_master */
if ((sfd = open_pty_slave(ptyslave)) < 0) {
ERRNO_ERR1(LOG_ERR,"Could not open pty slave '%s'", ptyslave);
exit(1);
}
/* But sfd may be one of the stdio fd's now, and we should be unmodern and not use dup2... */
/* easiest to dup it up... */
while (sfd < 3) {
sfd = dup(sfd);
}
}
#if defined(HAVE_OPENPTY) && defined(TIOCSCTTY)
else {
/* sfd is from open_pty_master
* openpty -> fork -> login_tty (forkpty)
*
* It would be preferable to implement a portable
* forkpty instead of open_pty_master / open_pty_slave
*/
/* login_tty(sfd); <- FAIL */
ioctl(sfd, TIOCSCTTY, (char *)NULL);
}
#endif
#ifndef NO_SYSLOG
/* Before fiddling with file descriptors we make sure syslog is turned off
or "closed". In the single case where we might want it again,
we will open it again instead. Would not want syslog to
go to some other fd... */
if (run_daemon) {
closelog();
}
#endif
/* Close stdio */
sf_close(0);
sf_close(1);
sf_close(2);
if (dup(sfd) != 0 || dup(sfd) != 1 || dup(sfd) != 2) {
status("Cannot dup\n");
}
sf_close(sfd);
exec_shell(argv+off_argv); /* exec_shell expects argv[2] to be */
/* the command name, so we have to */
/* adjust. */
} else {
/* Parent */
/* Ignore the SIGPIPE signal, write() will return errno=EPIPE */
struct sigaction sig_act;
sigemptyset(&sig_act.sa_mask);
sig_act.sa_flags = 0;
sig_act.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &sig_act, (struct sigaction *)NULL);
sigemptyset(&sig_act.sa_mask);
sig_act.sa_flags = SA_NOCLDSTOP;
sig_act.sa_handler = catch_sigchild;
sigaction(SIGCHLD, &sig_act, (struct sigaction *)NULL);
/*
* read and write: enter the workloop
*/
pass_on(childpid);
}
return 0;
} /* main() */
void
papaya_audio_tree_build()
{
GstElement *audio;
GstElement *sout;
GstPad *prevpad;
struct input_source *in_src;
/*
* we handle audio chains for audio live and
* playlist here
*/
switch (STREAM_TYPE){
case AUDIO_PLAYLIST:
srcbin = get_source_bin(NULL);
break;
case AUDIO_LIVE:
srcbin = get_alsa_source_bin();
break;
}
gst_bin_add(GST_BIN (pipeline), srcbin);
silence = get_silence_bin();
gst_bin_add(GST_BIN(pipeline), silence);
/*
* this is the new code to add sources and link them
* to adder and in a list of sources
*/
adderbin = get_adder_bin();
gst_bin_add(GST_BIN(pipeline), adderbin);
/* add sources */
add_new_stream_source(silence, "src", "main silence source");
in_src = add_new_stream_source(srcbin,
"asrc%d", "bootstrap playlist source");
/* this is used for the playlist EOS handling */
gst_pad_add_event_probe(gst_element_get_static_pad(srcbin,"asrc%d"),
G_CALLBACK(cb_eos_in_filesrc), in_src);
g_print("active sources %d\n", globsrc->active);
atee = gst_element_factory_make("tee","tee");
gst_bin_add(GST_BIN(pipeline),atee);
gst_element_link(adderbin, atee);
/*
* build output is the encoders and converter chain
*/
audio = build_audio_output_chain();
gst_bin_add (GST_BIN (pipeline), audio);
/* the shout2send element */
sout = get_shout_out();
gst_bin_add(GST_BIN(pipeline), sout);
gst_element_link(audio, sout);
add_new_outputs(audio, "sink", "a shout2send output");
/* activate the audio monitor if requested */
if(audiomon)
pass_on();
}
