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v0.5 kick-off

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This commit is contained in:
robijn
2001-12-30 00:15:25 +00:00
parent c28d25b795
commit 71056ec551
88 changed files with 6638 additions and 5469 deletions
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server/main.c
+174 -160
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@@ -53,7 +53,7 @@ extern int optind, optopt, opterr;
#define MAX_TIMER 0x10000
//#define DEFAULT_DEBUG_LEVEL 1
/*#define DEFAULT_DEBUG_LEVEL 1*/
#define DEFAULT_LCD_PORT LCDPORT
#define DEFAULT_BIND_ADDR "127.0.0.1"
#define DEFAULT_CONFIGFILE "/etc/LCDd.conf"
@@ -85,13 +85,13 @@ char *build_date = __DATE__;
/**** Configuration variables ****/
// All variables are set to 'unset' values
/* All variables are set to 'unset' values*/
#define UNSET_INT -1
#define UNSET_STR "\01"
int debug_level; // for compatibility with MtxOrb, lcdm001 and joy drivers.
// I was about to remove the comment in front of this.
// Now how do we become compatible WITHOUT this debug_level ?
int debug_level; /* for compatibility with MtxOrb and joy drivers.
* I was about to remove the comment in front of this.
* Now how do we become compatible WITHOUT this debug_level ?*/
int lcd_port = UNSET_INT;
char bind_addr[64] = UNSET_STR;
@@ -105,33 +105,34 @@ static int reportLevel = UNSET_INT;
static int reportToSyslog = UNSET_INT;
static int serverStarted = 0;
// The drivers and their driver parameters
/* The drivers and their driver parameters*/
char *drivernames[MAX_DRIVERS];
char *driverfilenames[MAX_DRIVERS];
char *driverargs[MAX_DRIVERS];
int num_drivers = 0;
// The parameter structure and args[] should
// be removed when getopt(3) is implemented,
// as there won't be any need for them then.
//typedef struct parameter {
// char *sh, *lg; // short and long versions
//} parameter;
// This is currently only a list of available arguments, but doesn't
// really *do* anything. It just helps to figure out which parameters
// go to the server, and which ones go to individual drivers...
//static parameter args[] = {
// {"-h", "--help"},
// {"-d", "--driver"},
// {"-t", "--type"},
// {"-f", "--foreground"},
// {"-b", "--backlight"},
// {"-i", "--serverinfo"},
// {"-w", "--waittime"},
// {NULL, NULL},
//};
/* The parameter structure and args[] should
* be removed when getopt(3) is implemented,
* as there won't be any need for them then.
* typedef struct parameter {
* char *sh, *lg; */ /* short and long versions*/
/*} parameter;
+
* This is currently only a list of available arguments, but doesn't
* really *do* anything. It just helps to figure out which parameters
* go to the server, and which ones go to individual drivers...
*static parameter args[] = {
* {"-h", "--help"},
* {"-d", "--driver"},
* {"-t", "--type"},
* {"-f", "--foreground"},
* {"-b", "--backlight"},
* {"-i", "--serverinfo"},
* {"-w", "--waittime"},
* {NULL, NULL},
*};
*/
/**** Local functions ****/
@@ -155,18 +156,20 @@ void lcd_list_drivers();
int
main (int argc, char **argv)
{
// FIXME: s is getting clobbered - in MANY places!!!
//screen *s = NULL;
//char buf[64];
/* FIXME: s is getting clobbered - in MANY places!!!
*screen *s = NULL;
*char buf[64];
*/
signal (SIGINT, exit_program); // Ctrl-C will cause a clean exit...
signal (SIGTERM, exit_program); // and "kill"...
signal (SIGHUP, exit_program); // and "kill -HUP" (hangup)...
signal (SIGKILL, exit_program); // and just in case, "kill -KILL" (which cannot be trapped; but oh well)
signal (SIGINT, exit_program); /* Ctrl-C will cause a clean exit...*/
signal (SIGTERM, exit_program); /* and "kill"...*/
signal (SIGHUP, exit_program); /* and "kill -HUP" (hangup)...*/
signal (SIGKILL, exit_program); /* and just in case, "kill -KILL" (which cannot be trapped; but oh well)*/
// If no paramaters given, give the help screen.
//if (argc == 1)
// HelpScreen ();
/* If no paramaters given, give the help screen.
*if (argc == 1)
* HelpScreen ();
*/
/*
* Settings in order of preference:
@@ -188,41 +191,42 @@ main (int argc, char **argv)
* in the variable declaration...
*/
// Set the initial reporting parameters
/* Set the initial reporting parameters*/
report(RPT_NOTICE, "LCDd version %s starting", version );
report(RPT_INFO, "Built on %s, protocol version %s, API version %s",
build_date, protocol_version, api_version );
clear_settings();
// Read command line
/* Read command line*/
ESSENTIAL( process_command_line (argc, argv) );
// Read config file
// Set configfile to default value first unless changed before
/* Read config file
* Set configfile to default value first unless changed before
*/
if (strcmp(configfile, UNSET_STR)==0)
strncpy (configfile, DEFAULT_CONFIGFILE, sizeof(configfile));
ESSENTIAL( process_configfile (configfile) );
// Set default values
/* Set default values*/
set_default_settings();
// Set reporting values
/* Set reporting values*/
debug_level = reportLevel;
ESSENTIAL( set_reporting( reportLevel, (reportToSyslog?RPT_DEST_SYSLOG:RPT_DEST_STDERR) ) );
report( RPT_NOTICE, "Set report level to %d, output to %s", reportLevel, (reportToSyslog?"syslog":"stderr") );
// Startup the server
/* Startup the server*/
ESSENTIAL( init_sockets() );
ESSENTIAL( init_drivers() );
ESSENTIAL( init_screens() );
ESSENTIAL( drop_privs(user) );
// Store it for exit_program()
/* Store it for exit_program()*/
serverStarted = 1;
#ifndef DEBUG
// Now, go into daemon mode...
/* Now, go into daemon mode...*/
if (daemon_mode) {
report(RPT_NOTICE, "Server forking to background");
ESSENTIAL( daemonize() );
@@ -232,7 +236,7 @@ main (int argc, char **argv)
#endif
do_mainloop();
// This loop never stops; we'll get out only with a signal...
/* This loop never stops; we'll get out only with a signal...*/
return 0;
}
@@ -243,7 +247,7 @@ clear_settings ()
{
int i;
//report( RPT_INFO, "clear_settings()" );
/*report( RPT_INFO, "clear_settings()" );*/
lcd_port = UNSET_INT;
strncpy( bind_addr, UNSET_STR, sizeof(bind_addr) );
@@ -275,15 +279,16 @@ process_command_line (int argc, char **argv)
{
char c;
//report( RPT_INFO, "process_command_line()" );
/*report( RPT_INFO, "process_command_line()" );*/
// analyze options here..
/* analyze options here..*/
while ((c = getopt(argc, argv, "a:p:d:hfib:w:c:u:sr:")) > 0) {
// FIXME: Setting of c in this loop clobbers s!
// s is set equivalent to c.
/* FIXME: Setting of c in this loop clobbers s!
* s is set equivalent to c.
*/
switch(c) {
case 'd':
// Add to a list of drivers to be initialized later...
/* Add to a list of drivers to be initialized later...*/
if (num_drivers < MAX_DRIVERS) {
drivernames[num_drivers] = malloc( strlen(optarg)+1 );
driverfilenames[num_drivers] = malloc( strlen(optarg)+1 );
@@ -371,16 +376,17 @@ process_configfile ( char *configfile )
{
int i;
char * s;
//char buf[64];
/*char buf[64];*/
//report( RPT_INFO, "process_configfile()" );
/*report( RPT_INFO, "process_configfile()" );*/
// Read server settings
/* Read server settings*/
config_read_file( configfile );
// if( debug_level == UNSET_INT )
// debug_level = config_get_int( "server", "debug", 0, UNSET_INT );
/* if( debug_level == UNSET_INT )
* debug_level = config_get_int( "server", "debug", 0, UNSET_INT );
*/
if( lcd_port == UNSET_INT )
lcd_port = config_get_int( "server", "port", 0, UNSET_INT );
@@ -430,7 +436,7 @@ process_configfile ( char *configfile )
}
if( reportToSyslog == UNSET_INT ) {
// Is the value set in the config file anyway ?
/* Is the value set in the config file anyway ?*/
if( strcmp( config_get_string( "server", "reportToSyslog", 0, "" ), "" ) != 0 ) {
reportToSyslog = config_get_bool( "server", "reportToSyslog", 0, 0 );
}
@@ -440,12 +446,13 @@ process_configfile ( char *configfile )
}
// Read drivers
/* Read drivers*/
// If drivers have been specified on the command line, then do not
// use the driver list from the config file.
/* If drivers have been specified on the command line, then do not
* use the driver list from the config file.
*/
if( num_drivers == 0 ) {
// read the drivernames
/* read the drivernames*/
while( 1 ) {
s = config_get_string( "server", "driver", num_drivers, "" );
@@ -464,8 +471,9 @@ process_configfile ( char *configfile )
}
}
// Now read the driver options that the server needs
// Drivers can read their own options later...
/* Now read the driver options that the server needs
* Drivers can read their own options later...
*/
for( i=0; i<num_drivers; i ++ ) {
s = config_get_string( drivernames[i], "file", 0, "" );
driverfilenames[i] = realloc( driverfilenames[i], strlen(s)+1 );
@@ -483,12 +491,13 @@ process_configfile ( char *configfile )
void
set_default_settings()
{
//report( RPT_INFO, "set_default_settings()" );
/*report( RPT_INFO, "set_default_settings()" );*/
// Set defaults into unfilled variables....
/* Set defaults into unfilled variables....*/
// if (debug_level == UNSET_INT)
// debug_level = DEFAULT_DEBUG_LEVEL;
/* if (debug_level == UNSET_INT)
* debug_level = DEFAULT_DEBUG_LEVEL;
*/
if (lcd_port == UNSET_INT)
lcd_port = DEFAULT_LCD_PORT;
if (strcmp( bind_addr, UNSET_STR ) == 0)
@@ -512,7 +521,7 @@ set_default_settings()
reportLevel = DEFAULT_REPORTLEVEL;
// Use default driver
/* Use default driver*/
if( num_drivers == 0 ) {
drivernames[0] = malloc(strlen(DEFAULT_DRIVER)+1);
driverfilenames[0] = malloc(1);
@@ -537,20 +546,21 @@ daemonize()
case -1:
report(RPT_ERR, "Could not fork");
return -1;
case 0: // We are the child
case 0: /* We are the child*/
break;
default: // We are the parent
usleep (1500000); // Wait for child to initialize
default: /* We are the parent*/
usleep (1500000); /* Wait for child to initialize*/
exit (0); /* PARENT EXITS */
}
// This line removed because it eats error messages...
//setsid(); /* RELEASE TTY */
//
// After this point, as a daemon, no error messages should
// go to the console unless drastic; rather, they should go to syslog
//
// However, option processing is not yet done, nor is any initialization (!)
// So we must wait until the main loop.
/* This line removed because it eats error messages...
* setsid();*/ /* RELEASE TTY */
/*
* After this point, as a daemon, no error messages should
* go to the console unless drastic; rather, they should go to syslog
*
* However, option processing is not yet done, nor is any initialization (!)
* So we must wait until the main loop.
*/
return 0;
}
@@ -565,7 +575,7 @@ init_sockets ()
return -1;
}
// Now init a bunch of required stuff...
/* Now init a bunch of required stuff...*/
if (client_init () < 0) {
report(RPT_ERR, "Error initializing client list");
@@ -584,23 +594,19 @@ init_drivers()
report( RPT_INFO, "init_drivers()" );
// FIXME: This sets s equal to a value related to i
// (bitshifted left?) FIX FIX FIX ARGH....
//
// Go thru all drivers and initialize all of them
for (i = 0; i < num_drivers; i++) {
res = load_driver (drivernames[i], driverfilenames[i], driverargs[i]);
res = drivers_load_driver (drivernames[i], driverfilenames[i], driverargs[i]);
if (res >= 0) {
// Load went OK
/* Load went OK */
switch( res ) {
case 0: // Driver does input only
case 0: /* Driver does input only */
break;
case 1: // Driver does output
case 1: /* Driver does output */
output_loaded = 1;
break;
case 2: // Driver does output in foreground (don't daemonize)
case 2: /* Driver does output in foreground (don't daemonize) */
if ( !output_loaded ) {
daemon_mode = 0;
}
@@ -612,7 +618,7 @@ init_drivers()
}
}
// Do we have a running output driver ?
/* Do we have a running output driver ?*/
if ( output_loaded ) {
return 0;
} else {
@@ -652,7 +658,7 @@ init_screens ()
report(RPT_ERR, "Error initializing screen list");
return -1;
}
// Make sure the server screen shows up every once in a while..
/* Make sure the server screen shows up every once in a while..*/
if (server_screen_init () < 0) {
report(RPT_ERR, "Error initializing server screens");
return -1;
@@ -671,49 +677,54 @@ do_mainloop ()
report( RPT_INFO, "do_mainloop()" );
//char buf[64];
/*char buf[64];*/
// FIXME: s should still be null from initialization.... what's happening here?!
/* FIXME: s should still be null from initialization.... what's happening here?!*/
while (1) {
sock_poll_clients (); // poll clients for input
parse_all_client_messages (); // analyze input from network clients
handle_input (); // handle key input from devices
sock_poll_clients (); /* poll clients for input*/
parse_all_client_messages (); /* analyze input from network clients*/
handle_input (); /* handle key input from devices*/
// TODO: Move this code to screenlist.c...
// ... it should just say "handle_screens();"
// Timer gets reset by screenlist_next()
/* TODO: Move this code to screenlist.c...
* ... it should just say "handle_screens();"
* Timer gets reset by screenlist_next()
*/
timer++;
//if (s == NULL)
// s = screenlist_current();
/*if (s == NULL)
* s = screenlist_current();
// this is here because s is getting overwritten...
//if (s != screenlist_current()) {
// report(RPT_DEBUG, "internal error! s was found overwritten at main.c:637");
// s = screenlist_current();
//}
//
//TODO: THIS MUST BE FIXED..... WHY is s getting overwritten?
// s is a local, it is never passed or assigned to anywhere.
// So SOMETHING is going haywire and clobbering memory....
* this is here because s is getting overwritten...
*if (s != screenlist_current()) {
* report(RPT_DEBUG, "internal error! s was found overwritten at main.c:637");
* s = screenlist_current();
*}
*/
/*TODO: THIS MUST BE FIXED..... WHY is s getting overwritten?
* s is a local, it is never passed or assigned to anywhere.
* So SOMETHING is going haywire and clobbering memory....
*/
if (s && (timer >= s->duration))
screenlist_next ();
// Just in case it gets out of hand...
/* Just in case it gets out of hand...*/
if (timer >= MAX_TIMER)
timer = 0;
// Update server screen with the right number
// of clients and screens...
//
// TODO: Move this call to every client connection
// and every screen add...
/* Update server screen with the right number
* of clients and screens...
*/
/* TODO: Move this call to every client connection
* and every screen add...
*/
update_server_screen (timer);
// draw the current scren
/* draw the current scren*/
if ((s = screenlist_current ()) != NULL)
@@ -723,9 +734,10 @@ do_mainloop ()
usleep (TIME_UNIT);
//Check to see if the screen has a timeout value, if it does
//decrese it and then check to see if it has excpired.
//Remove if expired.
/* Check to see if the screen has a timeout value, if it does
* decrese it and then check to see if it has excpired.
* Remove if expired.
*/
if((message = malloc(256)) == NULL)
report(RPT_ERR, "Error allocating message string");
else {
@@ -756,7 +768,7 @@ do_mainloop ()
}
}
// Quit!
/* Quit! */
exit_program (0);
}
@@ -767,8 +779,9 @@ exit_program (int val)
report( RPT_INFO, "exit_program()" );
// TODO: These things shouldn't be so interdependent. The order
// things are shut down in shouldn't matter...
/* TODO: These things shouldn't be so interdependent. The order
* things are shut down in shouldn't matter...
*/
strncpy(buf, "Server shutting down on ", sizeof (buf) );
switch(val) {
@@ -776,26 +789,26 @@ exit_program (int val)
case 2: strcat(buf, "SIGINT"); break;
case 15: strcat(buf, "SIGTERM"); break;
default: snprintf(buf, sizeof(buf), "Server shutting down on signal %d", val); break;
// Other values should not be seen, but just in case..
/* Other values should not be seen, but just in case.. */
}
report(RPT_NOTICE, buf); // report it
report(RPT_NOTICE, buf); /* report it */
// Set emergency reporting and flush all messages if not done already.
/* Set emergency reporting and flush all messages if not done already. */
if( reportLevel == UNSET_INT )
reportLevel = DEFAULT_REPORTLEVEL;
if( reportToSyslog == UNSET_INT )
reportLevel = DEFAULT_REPORTLEVEL;
set_reporting( reportLevel, (reportToSyslog?RPT_DEST_SYSLOG:RPT_DEST_STDERR) );
// Shutdown things if server start was complete
/* Shutdown things if server start was complete */
if( serverStarted ) {
goodbye_screen (); // display goodbye screen on LCD display
unload_all_drivers (); // release driver memory and file descriptors
goodbye_screen (); /* display goodbye screen on LCD display */
drivers_unload_all (); /* release driver memory and file descriptors */
client_shutdown (); // shutdown clients (must come first)
screenlist_shutdown (); // shutdown screens (must come after client_shutdown)
sock_close_all (); // close all open sockets (must come after client_shutdown)
client_shutdown (); /* shutdown clients (must come first) */
screenlist_shutdown (); /* shutdown screens (must come after client_shutdown) */
sock_close_all (); /* close all open sockets (must come after client_shutdown) */
}
exit (0);
@@ -805,39 +818,40 @@ exit_program (int val)
void
HelpScreen ()
{
// Help screen is printed to stdout on purpose. No reason to have
// this in syslog...
/* Help screen is printed to stdout on purpose. No reason to have
* this in syslog...
*/
report( RPT_INFO, "HelpScreen()" );
printf ("\nLCDd Server Daemon (part of lcdproc), %s\n", version);
printf ("Copyright (c) 1999 Scott Scriven, William Ferrell, and misc contributors\n");
printf ("This program is freely redistributable under the terms of the GNU Public License\n\n");
printf ("Usage: LCDd [ -hfiws ] [ -c <config> ] [ -d <driver> ] [ -a <addr> ] \\\n\t[ -p <port> ] [ -u <user> ] [ -w <time> ] [ -r <level> ]\n\n");
printf ("Available options are:\n");
fprintf (stdout, "\nLCDd Server Daemon (part of lcdproc), %s\n", version);
fprintf (stdout, "Copyright (c) 1999 Scott Scriven, William Ferrell, and misc contributors\n");
fprintf (stdout, "This program is freely redistributable under the terms of the GNU Public License\n\n");
fprintf (stdout, "Usage: LCDd [ -hfiws ] [ -c <config> ] [ -d <driver> ] [ -a <addr> ] \\\n\t[ -p <port> ] [ -u <user> ] [ -w <time> ] [ -r <level> ]\n\n");
fprintf (stdout, "Available options are:\n");
printf ("\t-h\t\tDisplay this help screen\n");
printf ("\t-c <config>\tUse a configuration file other than %s\n", DEFAULT_CONFIGFILE);
//printf ("\t-t\t\tSelect an LCD size (20x4, 16x2, etc...)\n");
printf ("\t-d <driver>\tAdd a driver to use (output only to first)\n");
//printf ("\t\t\tCFontz, curses, HD44780, irmanin, joy,\n\t\t\tMtxOrb, LB216, text\n");
//printf ("\t\t\t(args will be passed to the driver for init)\n");
printf ("\t-f\t\tRun in the foreground\n");
//printf ("\t-b\t--backlight <mode>\n\t\t\tSet backlight mode (on, off, open)\n");
printf ("\t-i\t\tDisable showing of the main LCDproc server screen\n");
printf ("\t-w <waittime>\tTime to pause at each screen (in seconds)\n");
printf ("\t-a <addr>\tNetwork (IP) address to bind to\n");
printf ("\t-p <port>\tNetwork port to listen for connections on\n");
printf ("\t-u <user>\tUser to run as\n");
printf ("\t-s\t\tOutput messages to syslog\n");
printf ("\t-r <level>\tReport level (default=2)\n");
fprintf (stdout, "\t-h\t\tDisplay this help screen\n");
fprintf (stdout, "\t-c <config>\tUse a configuration file other than %s\n", DEFAULT_CONFIGFILE);
/*fprintf (stdout, "\t-t\t\tSelect an LCD size (20x4, 16x2, etc...)\n");*/
fprintf (stdout, "\t-d <driver>\tAdd a driver to use (output only to first)\n");
/*fprintf (stdout, "\t\t\tCFontz, curses, HD44780, irmanin, joy,\n\t\t\tMtxOrb, LB216, text\n");*/
/*fprintf (stdout, "\t\t\t(args will be passed to the driver for init)\n");*/
fprintf (stdout, "\t-f\t\tRun in the foreground\n");
/*fprintf (stdout, "\t-b\t--backlight <mode>\n\t\t\tSet backlight mode (on, off, open)\n");*/
fprintf (stdout, "\t-i\t\tDisable showing of the main LCDproc server screen\n");
fprintf (stdout, "\t-w <waittime>\tTime to pause at each screen (in seconds)\n");
fprintf (stdout, "\t-a <addr>\tNetwork (IP) address to bind to\n");
fprintf (stdout, "\t-p <port>\tNetwork port to listen for connections on\n");
fprintf (stdout, "\t-u <user>\tUser to run as\n");
fprintf (stdout, "\t-s\t\tOutput messages to syslog\n");
fprintf (stdout, "\t-r <level>\tReport level (default=2)\n");
printf ("\nCurrently available drivers:\n");
fprintf (stdout, "\nCurrently available drivers:\n");
lcd_list_drivers();
//printf ("\tHelp on each driver's parameters are obtained upon request:\n\t\t\"LCDd -d driver --help\"\n");
//printf ("Example:\n");
//printf ("\tLCDd -d MtxOrb \"--device /dev/lcd --contrast 200\" -d joy\n");
printf ("\n");
/*fprintf (stdout, "\tHelp on each driver's parameters are obtained upon request:\n\t\t\"LCDd -d driver --help\"\n");*/
/*fprintf (stdout, "Example:\n");*/
/*fprintf (stdout, "\tLCDd -d MtxOrb \"--device /dev/lcd --contrast 200\" -d joy\n");*/
fprintf (stdout, "\n");
exit (0);
}