int socket_init(int port) {
int fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0) {
printf("socket create failed.\n");
goto _error;
}
//reuse address
int opt = SO_REUSEADDR;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
//bind
struct sockaddr_in addr;
bzero(&addr, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
printf("socket bind failed.\n");
goto _error;
}
//listen
if(listen(fd, 10) < 0) {
printf("socket listen failed.\n");
goto _error;
}
return fd;
_error:
socket_deinit(fd);
return -1;
}
int main(int argc, char* argv[]) {
if (argc != 2) {
printf("Usage: %s <Listen Port>\n", argv[0]);
return -1;
}
signal(SIGINT, sigint_handle);
int listenfd = socket_init(atoi(argv[1]));
if (listenfd < 0) {
exit(-1);
}
socket_accept(listenfd);
socket_deinit(listenfd);
return 0;
}
int main(int argc, char* argv[]) {
if (argc != 3) {
printf("Usage: %s <Server IP> <Server Port>\n", argv[0]);
return -1;
}
int sockfd = socket_init();
socket_connect(sockfd, argv[1], atoi(argv[2]));
printf("Connected to %s\n", argv[1]);
char buf[1024] = {0};
int len = recv(sockfd, buf, sizeof(buf), 0);
if (len >= 0) {
buf[len] = '\0';
}
printf("RECV: %s\n", buf);
socket_deinit(sockfd);
return 0;
}
/* do_shutdown_now
This is the main shutdown processing function. It is NEVER called
directly, but is instead ONLY called by either the 'do_shutdown'
or 'do_shutdown_wait' functions after all CPUs have been stopped.
It is responsible for releasing the device configuration and then
calling the Hercules Dynamic Loader "hdl_shut" function to invoke
all registered "Hercules at-exit/termination functions" (similar
to 'atexit' but unique to Hercules) (to perform any other needed
miscellaneous shutdown related processing).
Only after the above three tasks have been completed (stopping the
CPUs, releasing the device configuration, calling registered term-
ination routines/functions) can Hercules then be safely terminated.
Note too that, *technically*, this function *should* wait for *all*
other threads to finish terminating first before either exiting or
returning back to the caller, but we don't currently enforce that
(since that's *really* what hdl_adsc + hdl_shut is designed for!).
At the moment, as long as the three previously mentioned three most
important shutdown tasks have been completed (stop cpus, release
device config, call term funcs), then we consider the brunt of our
shutdown processing to be completed and thus exit (or return back
to the caller to let them exit instead). If there happen to be any
threads still running when that happens, they will be automatically
terminated by the operating sytem as normal when a process exits.
SO... If there are any threads that must be terminated completely
and cleanly before Hercules can safely terminate, then you better
add code to this function to ENSURE that your thread is terminated
properly! (and/or add a call to 'hdl_adsc' at the appropriate place
in the startup sequence). For this purpose, the use of "join_thread"
is *strongly* encouraged as it *ensures* that your thread will not
continue until the thread in question has completely exited first.
*/
static void do_shutdown_now()
{
logmsg("HHCIN900I Begin Hercules shutdown\n");
ASSERT( !sysblk.shutfini ); // (sanity check)
sysblk.shutfini = 0; // (shutdown NOT finished yet)
sysblk.shutdown = 1; // (system shutdown initiated)
logmsg("HHCIN901I Releasing configuration\n");
{
release_config();
}
logmsg("HHCIN902I Configuration release complete\n");
logmsg("HHCIN903I Calling termination routines\n");
{
hdl_shut();
}
logmsg("HHCIN904I All termination routines complete\n");
/*
logmsg("HHCIN905I Terminating threads\n");
{
// (none we really care about at the moment...)
}
logmsg("HHCIN906I Threads terminations complete\n");
*/
logmsg("HHCIN909I Hercules shutdown complete\n");
sysblk.shutfini = 1; // (shutdown is now complete)
// PROGRAMMING NOTE
// If we're NOT in "daemon_mode" (i.e. panel_display in control),
// -OR- if a daemon_task DOES exist, then THEY are in control of
// shutdown; THEY are responsible for exiting the system whenever
// THEY feel it's proper to do so (by simply returning back to the
// caller thereby allowing 'main' to return back to the operating
// system).
// OTHEWRWISE we ARE in "daemon_mode", but a daemon_task does NOT
// exist, which means the main thread (tail end of 'impl.c') is
// stuck in a loop reading log messages and writing them to the
// logfile, so we need to do the exiting here since it obviously
// cannot.
if ( sysblk.daemon_mode
#if defined(OPTION_DYNAMIC_LOAD)
&& !daemon_task
#endif /*defined(OPTION_DYNAMIC_LOAD)*/
)
{
#ifdef _MSVC_
socket_deinit();
#endif
#ifdef DEBUG
fprintf(stdout, _("DO_SHUTDOWN_NOW EXIT\n"));
#endif
fprintf(stdout, _("HHCIN099I Hercules terminated\n"));
fflush(stdout);
exit(0);
}
}
/*-------------------------------------------------------------------*/
DLL_EXPORT int impl(int argc, char *argv[])
{
char *cfgfile; /* -> Configuration filename */
int c; /* Work area for getopt */
int arg_error = 0; /* 1=Invalid arguments */
char *msgbuf; /* */
int msgnum; /* */
int msgcnt; /* */
TID rctid; /* RC file thread identifier */
TID logcbtid; /* RC file thread identifier */
SET_THREAD_NAME("impl");
/* Initialize 'hostinfo' BEFORE display_version is called */
init_hostinfo( &hostinfo );
#ifdef _MSVC_
/* Initialize sockets package */
VERIFY( socket_init() == 0 );
#endif
/* Ensure hdl_shut is called in case of shutdown
hdl_shut will ensure entries are only called once */
atexit(hdl_shut);
set_codepage(NULL);
/* Clear the system configuration block */
memset (&sysblk, 0, sizeof(SYSBLK));
/* Save thread ID of main program */
sysblk.impltid = thread_id();
/* Save TOD of when we were first IMPL'ed */
time( &sysblk.impltime );
#ifdef OPTION_MSGHLD
/* Set the default timeout value */
sysblk.keep_timeout_secs = 120;
#endif
/* Initialize thread creation attributes so all of hercules
can use them at any time when they need to create_thread
*/
initialize_detach_attr (DETACHED);
initialize_join_attr (JOINABLE);
/* Copy length for regs */
sysblk.regs_copy_len = (int)((uintptr_t)&sysblk.dummyregs.regs_copy_end
- (uintptr_t)&sysblk.dummyregs);
/* Set the daemon_mode flag indicating whether we running in
background/daemon mode or not (meaning both stdout/stderr
are redirected to a non-tty device). Note that this flag
needs to be set before logger_init gets called since the
logger_logfile_write function relies on its setting.
*/
sysblk.daemon_mode = !isatty(STDERR_FILENO) && !isatty(STDOUT_FILENO);
/* Initialize the logmsg pipe and associated logger thread.
This causes all subsequent logmsg's to be redirected to
the logger facility for handling by virtue of stdout/stderr
being redirected to the logger facility.
*/
logger_init();
/* Now display the version information again after logger_init
has been called so that either the panel display thread or the
external gui can see the version which was previously possibly
only displayed to the actual physical screen the first time we
did it further above (depending on whether we're running in
daemon_mode (external gui mode) or not). This it the call that
the panel thread or the one the external gui actually "sees".
The first call further above wasn't seen by either since it
was issued before logger_init was called and thus got written
directly to the physical screen whereas this one will be inter-
cepted and handled by the logger facility thereby allowing the
panel thread or external gui to "see" it and thus display it.
*/
display_version (stdout, "Hercules ", TRUE);
#if defined(OPTION_DYNAMIC_LOAD)
/* Initialize the hercules dynamic loader */
hdl_main();
#endif /* defined(OPTION_DYNAMIC_LOAD) */
#if defined(ENABLE_NLS)
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, HERC_LOCALEDIR);
textdomain(PACKAGE);
#endif
#ifdef EXTERNALGUI
/* Set GUI flag if specified as final argument */
if (argc >= 1 && strncmp(argv[argc-1],"EXTERNALGUI",11) == 0)
{
#if defined(OPTION_DYNAMIC_LOAD)
if (hdl_load("dyngui",HDL_LOAD_DEFAULT) != 0)
{
usleep(10000); /* (give logger thread time to issue
preceding HHCHD007E message) */
logmsg(_("HHCIN008S DYNGUI.DLL load failed; Hercules terminated.\n"));
delayed_exit(1);
}
#endif /* defined(OPTION_DYNAMIC_LOAD) */
argc--;
}
#endif /*EXTERNALGUI*/
#if !defined(WIN32) && !defined(HAVE_STRERROR_R)
strerror_r_init();
#endif
#if defined(OPTION_SCSI_TAPE)
initialize_lock (&sysblk.stape_lock);
initialize_condition (&sysblk.stape_getstat_cond);
InitializeListHead (&sysblk.stape_mount_link);
InitializeListHead (&sysblk.stape_status_link);
#endif /* defined(OPTION_SCSI_TAPE) */
/* Get name of configuration file or default to hercules.cnf */
if(!(cfgfile = getenv("HERCULES_CNF")))
cfgfile = "hercules.cnf";
/* Process the command line options */
while ((c = getopt(argc, argv, "f:p:l:db:")) != EOF)
{
switch (c) {
case 'f':
cfgfile = optarg;
break;
#if defined(OPTION_DYNAMIC_LOAD)
case 'p':
if(optarg)
hdl_setpath(strdup(optarg));
break;
case 'l':
{
char *dllname, *strtok_str;
for(dllname = strtok_r(optarg,", ",&strtok_str);
dllname;
dllname = strtok_r(NULL,", ",&strtok_str))
hdl_load(dllname, HDL_LOAD_DEFAULT);
}
break;
#endif /* defined(OPTION_DYNAMIC_LOAD) */
case 'b':
sysblk.logofile=optarg;
break;
case 'd':
sysblk.daemon_mode = 1;
break;
default:
arg_error = 1;
} /* end switch(c) */
} /* end while */
if (optind < argc)
arg_error = 1;
/* Terminate if invalid arguments were detected */
if (arg_error)
{
logmsg("usage: %s [-f config-filename] [-d] [-b logo-filename]"
#if defined(OPTION_DYNAMIC_LOAD)
" [-p dyn-load-dir] [[-l dynmod-to-load]...]"
#endif /* defined(OPTION_DYNAMIC_LOAD) */
" [> logfile]\n",
argv[0]);
delayed_exit(1);
}
/* Register the SIGINT handler */
if ( signal (SIGINT, sigint_handler) == SIG_ERR )
{
logmsg(_("HHCIN001S Cannot register SIGINT handler: %s\n"),
strerror(errno));
delayed_exit(1);
}
/* Register the SIGTERM handler */
if ( signal (SIGTERM, sigterm_handler) == SIG_ERR )
{
logmsg(_("HHCIN009S Cannot register SIGTERM handler: %s\n"),
strerror(errno));
delayed_exit(1);
}
#if defined( _MSVC_ )
/* Register the Window console ctrl handlers */
if (SetConsoleCtrlHandler(console_ctrl_handler, TRUE) == FALSE)
{
logmsg(_("HHCIN010S Cannot register ConsoleCtrl handler: %s\n"),
strerror(errno));
delayed_exit(1);
}
#endif
#if defined(HAVE_DECL_SIGPIPE) && HAVE_DECL_SIGPIPE
/* Ignore the SIGPIPE signal, otherwise Hercules may terminate with
Broken Pipe error if the printer driver writes to a closed pipe */
if ( signal (SIGPIPE, SIG_IGN) == SIG_ERR )
{
logmsg(_("HHCIN002E Cannot suppress SIGPIPE signal: %s\n"),
strerror(errno));
}
#endif
#if defined( OPTION_WAKEUP_SELECT_VIA_PIPE )
{
int fds[2];
initialize_lock(&sysblk.cnslpipe_lock);
initialize_lock(&sysblk.sockpipe_lock);
sysblk.cnslpipe_flag=0;
sysblk.sockpipe_flag=0;
VERIFY( create_pipe(fds) >= 0 );
sysblk.cnslwpipe=fds[1];
sysblk.cnslrpipe=fds[0];
VERIFY( create_pipe(fds) >= 0 );
sysblk.sockwpipe=fds[1];
sysblk.sockrpipe=fds[0];
}
#endif // defined( OPTION_WAKEUP_SELECT_VIA_PIPE )
#if !defined(NO_SIGABEND_HANDLER)
{
struct sigaction sa;
sa.sa_sigaction = (void*)&sigabend_handler;
#ifdef SA_NODEFER
sa.sa_flags = SA_NODEFER;
#else
sa.sa_flags = 0;
#endif
if( sigaction(SIGILL, &sa, NULL)
|| sigaction(SIGFPE, &sa, NULL)
|| sigaction(SIGSEGV, &sa, NULL)
|| sigaction(SIGBUS, &sa, NULL)
|| sigaction(SIGUSR1, &sa, NULL)
|| sigaction(SIGUSR2, &sa, NULL) )
{
logmsg(_("HHCIN003S Cannot register SIGILL/FPE/SEGV/BUS/USR "
"handler: %s\n"),
strerror(errno));
delayed_exit(1);
}
}
#endif /*!defined(NO_SIGABEND_HANDLER)*/
/* Build system configuration */
build_config (cfgfile);
/* System initialisation time */
sysblk.todstart = hw_clock() << 8;
#ifdef OPTION_MIPS_COUNTING
/* Initialize "maxrates" command reporting intervals */
curr_int_start_time = time( NULL );
prev_int_start_time = curr_int_start_time;
#endif
#if !defined(NO_SIGABEND_HANDLER)
/* Start the watchdog */
if ( create_thread (&sysblk.wdtid, DETACHED,
watchdog_thread, NULL, "watchdog_thread") )
{
logmsg(_("HHCIN004S Cannot create watchdog thread: %s\n"),
strerror(errno));
delayed_exit(1);
}
#endif /*!defined(NO_SIGABEND_HANDLER)*/
#ifdef OPTION_SHARED_DEVICES
/* Start the shared server */
if (sysblk.shrdport)
if ( create_thread (&sysblk.shrdtid, DETACHED,
shared_server, NULL, "shared_server") )
{
logmsg(_("HHCIN006S Cannot create shared_server thread: %s\n"),
strerror(errno));
delayed_exit(1);
}
/* Retry pending connections */
{
DEVBLK *dev;
TID tid;
for (dev = sysblk.firstdev; dev != NULL; dev = dev->nextdev)
if (dev->connecting)
if ( create_thread (&tid, DETACHED,
*dev->hnd->init, dev, "device connecting thread")
)
{
logmsg(_("HHCIN007S Cannot create %4.4X connection thread: %s\n"),
dev->devnum, strerror(errno));
delayed_exit(1);
}
}
#endif
/* Start up the RC file processing thread */
create_thread(&rctid,DETACHED,
process_rc_file,NULL,"process_rc_file");
if(log_callback)
{
// 'herclin' called us. IT'S in charge. Create its requested
// logmsg intercept callback function and return back to it.
create_thread(&logcbtid,DETACHED,
log_do_callback,NULL,"log_do_callback");
return(0);
}
//---------------------------------------------------------------
// The below functions will not return until Hercules is shutdown
//---------------------------------------------------------------
/* Activate the control panel */
if(!sysblk.daemon_mode)
panel_display ();
else
{
#if defined(OPTION_DYNAMIC_LOAD)
if(daemon_task)
daemon_task ();
else
#endif /* defined(OPTION_DYNAMIC_LOAD) */
{
/* Tell RC file and HAO threads they may now proceed */
sysblk.panel_init = 1;
/* Retrieve messages from logger and write to stderr */
while (1)
if((msgcnt = log_read(&msgbuf, &msgnum, LOG_BLOCK)))
if(isatty(STDERR_FILENO))
fwrite(msgbuf,msgcnt,1,stderr);
}
}
// -----------------------------------------------------
// *** Hercules has been shutdown (PAST tense) ***
// -----------------------------------------------------
ASSERT( sysblk.shutdown ); // (why else would we be here?!)
#ifdef _MSVC_
SetConsoleCtrlHandler(console_ctrl_handler, FALSE);
socket_deinit();
#endif
#ifdef DEBUG
fprintf(stdout, _("IMPL EXIT\n"));
#endif
fprintf(stdout, _("HHCIN099I Hercules terminated\n"));
fflush(stdout);
usleep(10000);
return 0;
} /* end function main */
/*-------------------------------------------------------------------*/
BOOL WINAPI console_ctrl_handler (DWORD signo)
{
int i;
SetConsoleCtrlHandler(console_ctrl_handler, FALSE); // turn handler off while processing
switch ( signo )
{
case CTRL_BREAK_EVENT:
logmsg(_("HHCIN050ICtrl-Break intercepted. Interrupt Key depressed simulated.\n"));
OBTAIN_INTLOCK(NULL);
ON_IC_INTKEY;
/* Signal waiting CPUs that an interrupt is pending */
WAKEUP_CPUS_MASK (sysblk.waiting_mask);
RELEASE_INTLOCK(NULL);
SetConsoleCtrlHandler(console_ctrl_handler, TRUE); // reset handler
return TRUE;
break;
case CTRL_C_EVENT:
logmsg(_("HHCIN022I Ctrl-C intercepted\n"));
SetConsoleCtrlHandler(console_ctrl_handler, TRUE); // reset handler
return TRUE;
break;
case CTRL_CLOSE_EVENT:
case CTRL_SHUTDOWN_EVENT:
case CTRL_LOGOFF_EVENT:
if ( !sysblk.shutdown ) // (system shutdown not initiated)
{
logmsg(_("HHCIN021ICLOSE Event received, SHUTDOWN Immediate starting...\n"));
sysblk.shutimmed = TRUE;
do_shutdown();
// logmsg("%s(%d): return from shutdown\n", __FILE__, __LINE__ ); /* debug */
for ( i = 0; i < 120; i++ )
{
if ( sysblk.shutdown && sysblk.shutfini )
{
// logmsg("%s(%d): %d shutdown completed\n", /* debug */
// __FILE__, __LINE__, i ); /* debug */
sleep(1);
break;
}
else
{
// logmsg("%s(%d): %d waiting for shutdown to complete\n", /* debug */
// __FILE__, __LINE__, i ); /* debug */
sleep(1);
}
}
socket_deinit();
}
else
{
logmsg(_("HHCIN023W CLOSE Event received, SHUTDOWN previously requested...\n"));
}
usleep(10000);
return FALSE;
break;
default:
return FALSE;
}
} /* end function console_ctrl_handler */
/*-------------------------------------------------------------------*/
DLL_EXPORT int impl(int argc, char *argv[])
{
char *cfgfile; /* -> Configuration filename */
char pathname[MAX_PATH]; /* work area for filenames */
#if defined ( OPTION_LOCK_CONFIG_FILE )
int fd_cfg = -1; /* fd for config file */
#if !defined ( _MSVC_ )
struct flock fl_cfg; /* file lock for conf file */
#endif
#endif
int c; /* Work area for getopt */
int arg_error = 0; /* 1=Invalid arguments */
char *msgbuf; /* */
int msgnum; /* */
int msgcnt; /* */
TID rctid; /* RC file thread identifier */
TID logcbtid; /* RC file thread identifier */
int rc;
#if defined(EXTERNALGUI)
int e_gui = FALSE; /* EXTERNALGUI parm */
#endif
#if defined(OPTION_DYNAMIC_LOAD)
#define MAX_DLL_TO_LOAD 50
char *dll_load[MAX_DLL_TO_LOAD]; /* Pointers to modnames */
int dll_count; /* index into array */
#endif
/* Seed the pseudo-random number generator */
srand( time(NULL) );
/* Clear the system configuration block */
memset( &sysblk, 0, sizeof( SYSBLK ) );
VERIFY( MLOCK( &sysblk, sizeof( SYSBLK )) == 0);
#if defined (_MSVC_)
_setmaxstdio(2048);
#endif
/* Initialize EYE-CATCHERS for SYSBLK */
memset(&sysblk.blknam,SPACE,sizeof(sysblk.blknam));
memset(&sysblk.blkver,SPACE,sizeof(sysblk.blkver));
memset(&sysblk.blkend,SPACE,sizeof(sysblk.blkend));
sysblk.blkloc = swap_byte_U64((U64)((uintptr_t)&sysblk));
memcpy(sysblk.blknam,HDL_NAME_SYSBLK,strlen(HDL_NAME_SYSBLK));
memcpy(sysblk.blkver,HDL_VERS_SYSBLK,strlen(HDL_VERS_SYSBLK));
sysblk.blksiz = swap_byte_U32((U32)sizeof(SYSBLK));
{
char buf[32];
MSGBUF( buf, "END%13.13s", HDL_NAME_SYSBLK );
memcpy(sysblk.blkend, buf, sizeof(sysblk.blkend));
}
/* Initialize SETMODE and set user authority */
SETMODE(INIT);
#if defined(OPTION_DYNAMIC_LOAD)
for ( dll_count = 0; dll_count < MAX_DLL_TO_LOAD; dll_count++ )
dll_load[dll_count] = NULL;
dll_count = -1;
#endif
SET_THREAD_NAME("impl");
/* Initialize 'hostinfo' BEFORE display_version is called */
init_hostinfo( &hostinfo );
#ifdef _MSVC_
/* Initialize sockets package */
VERIFY( socket_init() == 0 );
#endif
/* Ensure hdl_shut is called in case of shutdown
hdl_shut will ensure entries are only called once */
atexit(hdl_shut);
if ( argc > 0 )
{
int i,len;
for (len = 0, i = 0; i < argc; i++ )
len += (int)strlen( (char *)argv[i] ) + 1;
sysblk.hercules_cmdline = (char *)malloc( len );
strlcpy( sysblk.hercules_cmdline, argv[0], len );
for ( i = 1; i < argc; i++ )
{
strlcat( sysblk.hercules_cmdline, " ", len );
strlcat( sysblk.hercules_cmdline, argv[i], len );
}
}
/* Set program name */
if ( argc > 0 )
{
if ( strlen(argv[0]) == 0 )
{
sysblk.hercules_pgmname = strdup("hercules");
sysblk.hercules_pgmpath = strdup("");
}
else
{
char path[MAX_PATH];
#if defined( _MSVC_ )
GetModuleFileName( NULL, path, MAX_PATH );
#else
strncpy(path,argv[0],sizeof(path)-1);
#endif
sysblk.hercules_pgmname = strdup(basename(path));
#if !defined( _MSVC_ )
strncpy(path,argv[0],sizeof(path)-1);
#endif
sysblk.hercules_pgmpath = strdup(dirname(path));
}
}
else
{
sysblk.hercules_pgmname = strdup("hercules");
sysblk.hercules_pgmpath = strdup("");
}
#if defined( OPTION_CONFIG_SYMBOLS )
/* These were moved from console.c to make them available sooner */
set_symbol( "VERSION", VERSION);
set_symbol( "BDATE", __DATE__ );
set_symbol( "BTIME", __TIME__ );
{
char num_procs[64];
if ( hostinfo.num_packages != 0 &&
hostinfo.num_physical_cpu != 0 &&
hostinfo.num_logical_cpu != 0 )
{
MSGBUF( num_procs, "LP=%d, Cores=%d, CPUs=%d", hostinfo.num_logical_cpu,
hostinfo.num_physical_cpu, hostinfo.num_packages );
}
else
{
if ( hostinfo.num_procs > 1 )
MSGBUF( num_procs, "MP=%d", hostinfo.num_procs );
else if ( hostinfo.num_procs == 1 )
strlcpy( num_procs, "UP", sizeof(num_procs) );
else
strlcpy( num_procs, "", sizeof(num_procs) );
}
set_symbol( "HOSTNAME", hostinfo.nodename );
set_symbol( "HOSTOS", hostinfo.sysname );
set_symbol( "HOSTOSREL", hostinfo.release );
set_symbol( "HOSTOSVER", hostinfo.version );
set_symbol( "HOSTARCH", hostinfo.machine );
set_symbol( "HOSTNUMCPUS", num_procs );
}
set_symbol( "MODNAME", sysblk.hercules_pgmname );
set_symbol( "MODPATH", sysblk.hercules_pgmpath );
#endif // defined( OPTION_CONFIG_SYMBOLS )
sysblk.sysgroup = DEFAULT_SYSGROUP;
sysblk.msglvl = DEFAULT_MLVL; /* Defaults to TERSE and DEVICES */
/* set default console port address */
sysblk.cnslport = strdup("3270");
/* set default tape autoinit value to OFF */
sysblk.noautoinit = TRUE;
/* default for system dasd cache is on */
sysblk.dasdcache = TRUE;
#if defined(OPTION_MSGCLR) || defined(OPTION_MSGHLD)
/* set default error message display (emsg) */
sysblk.emsg = EMSG_ON;
#endif
#if defined( OPTION_SHUTDOWN_CONFIRMATION )
/* set default quit timeout value (also ssd) */
sysblk.quitmout = QUITTIME_PERIOD;
#endif
/* Default command separator to off (NULL) */
sysblk.cmdsep = NULL;
#if defined(_FEATURE_SYSTEM_CONSOLE)
/* set default for scpecho to TRUE */
sysblk.scpecho = TRUE;
/* set fault for scpimply to FALSE */
sysblk.scpimply = FALSE;
#endif
/* set default system state to reset */
sysblk.sys_reset = TRUE;
/* set default SHCMDOPT enabled */
sysblk.shcmdopt = SHCMDOPT_ENABLE + SHCMDOPT_DIAG8;
/* Save process ID */
sysblk.hercules_pid = getpid();
/* Save thread ID of main program */
sysblk.impltid = thread_id();
/* Save TOD of when we were first IMPL'ed */
time( &sysblk.impltime );
/* Set to LPAR mode with LPAR 1, LPAR ID of 01, and CPUIDFMT 0 */
sysblk.lparmode = 1; /* LPARNUM 1 # LPAR ID 01 */
sysblk.lparnum = 1; /* ... */
sysblk.cpuidfmt = 0; /* CPUIDFMT 0 */
sysblk.operation_mode = om_mif; /* Default to MIF operaitons */
/* set default CPU identifier */
sysblk.cpumodel = 0x0586;
sysblk.cpuversion = 0xFD;
sysblk.cpuserial = 0x000001;
sysblk.cpuid = createCpuId(sysblk.cpumodel, sysblk.cpuversion,
sysblk.cpuserial, 0);
/* set default Program Interrupt Trace to NONE */
sysblk.pgminttr = OS_NONE;
sysblk.timerint = DEF_TOD_UPDATE_USECS;
/* set default thread priorities */
sysblk.hercprio = DEFAULT_HERCPRIO;
sysblk.todprio = DEFAULT_TOD_PRIO;
sysblk.cpuprio = DEFAULT_CPU_PRIO;
sysblk.devprio = DEFAULT_DEV_PRIO;
sysblk.srvprio = DEFAULT_SRV_PRIO;
/* Cap the default priorities at zero if setuid not available */
#if !defined( _MSVC_ )
#if !defined(NO_SETUID)
if (sysblk.suid)
#endif
{
if (sysblk.hercprio < 0)
sysblk.hercprio = 0;
if (sysblk.todprio < 0)
sysblk.todprio = 0;
if (sysblk.cpuprio < 0)
sysblk.cpuprio = 0;
if (sysblk.devprio < 0)
sysblk.devprio = 0;
if (sysblk.srvprio < 0)
sysblk.srvprio = 0;
}
#endif
/* set default console keep alive values */
sysblk.kaidle = KEEPALIVE_IDLE_TIME;
sysblk.kaintv = KEEPALIVE_PROBE_INTERVAL;
sysblk.kacnt = KEEPALIVE_PROBE_COUNT;
#if defined(_FEATURE_ECPSVM)
sysblk.ecpsvm.available = 0;
sysblk.ecpsvm.level = 20;
#endif
#ifdef PANEL_REFRESH_RATE
sysblk.panrate = PANEL_REFRESH_RATE_SLOW;
#endif
#if defined( OPTION_SHUTDOWN_CONFIRMATION )
/* Set the quitmout value */
sysblk.quitmout = QUITTIME_PERIOD; /* quit timeout value */
#endif
#if defined(OPTION_SHARED_DEVICES)
sysblk.shrdport = 0;
#endif
#ifdef OPTION_MSGHLD
/* Set the default timeout value */
sysblk.keep_timeout_secs = 120;
#endif
#if defined(OPTION_CONFIG_SYMBOLS) && defined(OPTION_BUILTIN_SYMBOLS)
/* setup defaults for BUILTIN symbols */
{
char buf[8];
set_symbol("LPARNAME", str_lparname());
set_symbol("LPARNUM", "1");
set_symbol("CPUIDFMT", "0");
MSGBUF( buf, "%06X", sysblk.cpuserial );
set_symbol( "CPUSERIAL", buf );
MSGBUF( buf, "%04X", sysblk.cpumodel );
set_symbol( "CPUMODEL", buf );
}
#endif /* defined(OPTION_CONFIG_SYMBOLS) && defined(OPTION_BUILTIN_SYMBOLS */
#if defined(_FEATURE_CMPSC_ENHANCEMENT_FACILITY)
sysblk.zpbits = DEF_CMPSC_ZP_BITS;
#endif
/* Initialize locks, conditions, and attributes */
initialize_lock (&sysblk.config);
initialize_lock (&sysblk.todlock);
initialize_lock (&sysblk.mainlock);
sysblk.mainowner = LOCK_OWNER_NONE;
initialize_lock (&sysblk.intlock);
initialize_lock (&sysblk.iointqlk);
sysblk.intowner = LOCK_OWNER_NONE;
initialize_lock (&sysblk.sigplock);
initialize_lock (&sysblk.mntlock);
initialize_lock (&sysblk.scrlock);
initialize_lock (&sysblk.crwlock);
initialize_lock (&sysblk.ioqlock);
initialize_condition (&sysblk.ioqcond);
#if defined(OPTION_CMDSER)
initialize_lock (&sysblk.cmdlock);
initialize_condition (&sysblk.cmdcond);
#endif /*defined(OPTION_CMDSER)*/
#ifdef FEATURE_MESSAGE_SECURITY_ASSIST_EXTENSION_3
/* Initialize the wrapping key registers lock */
initialize_rwlock(&sysblk.wklock);
#endif
/* Initialize thread creation attributes so all of hercules
can use them at any time when they need to create_thread
*/
initialize_detach_attr (DETACHED);
initialize_join_attr (JOINABLE);
initialize_condition (&sysblk.cpucond);
{
int i;
for (i = 0; i < MAX_CPU_ENGINES; i++)
initialize_lock (&sysblk.cpulock[i]);
}
initialize_condition (&sysblk.sync_cond);
initialize_condition (&sysblk.sync_bc_cond);
/* Copy length for regs */
sysblk.regs_copy_len = (int)((uintptr_t)&sysblk.dummyregs.regs_copy_end
- (uintptr_t)&sysblk.dummyregs);
/* Set the daemon_mode flag indicating whether we running in
background/daemon mode or not (meaning both stdout/stderr
are redirected to a non-tty device). Note that this flag
needs to be set before logger_init gets called since the
logger_logfile_write function relies on its setting.
*/
sysblk.daemon_mode = !isatty(STDERR_FILENO) && !isatty(STDOUT_FILENO);
/* Initialize the logmsg pipe and associated logger thread.
This causes all subsequent logmsg's to be redirected to
the logger facility for handling by virtue of stdout/stderr
being redirected to the logger facility.
*/
logger_init();
/*
Setup the initial codepage
*/
set_codepage(NULL);
/* Now display the version information again after logger_init
has been called so that either the panel display thread or the
external gui can see the version which was previously possibly
only displayed to the actual physical screen the first time we
did it further above (depending on whether we're running in
daemon_mode (external gui mode) or not). This it the call that
the panel thread or the one the external gui actually "sees".
The first call further above wasn't seen by either since it
was issued before logger_init was called and thus got written
directly to the physical screen whereas this one will be inter-
cepted and handled by the logger facility thereby allowing the
panel thread or external gui to "see" it and thus display it.
*/
display_version (stdout, "Hercules", TRUE);
#ifdef EXTERNALGUI
if (argc >= 1 && strncmp(argv[argc-1],"EXTERNALGUI",11) == 0)
{
e_gui = TRUE;
argc--;
}
#endif
#if !defined(WIN32) && !defined(HAVE_STRERROR_R)
strerror_r_init();
#endif
#if defined(OPTION_SCSI_TAPE)
initialize_lock ( &sysblk.stape_lock );
initialize_condition ( &sysblk.stape_getstat_cond );
InitializeListHead ( &sysblk.stape_mount_link );
InitializeListHead ( &sysblk.stape_status_link );
#endif /* defined(OPTION_SCSI_TAPE) */
/* Get name of configuration file or default to hercules.cnf */
if(!(cfgfile = getenv("HERCULES_CNF")))
cfgfile = "hercules.cnf";
/* Process the command line options */
{
#define HERCULES_BASE_OPTS "hf:r:db:v"
#define HERCULES_SYM_OPTS ""
#define HERCULES_HDL_OPTS ""
#if defined(OPTION_CONFIG_SYMBOLS)
#undef HERCULES_SYM_OPTS
#define HERCULES_SYM_OPTS "s:"
#endif
#if defined(OPTION_DYNAMIC_LOAD)
#undef HERCULES_HDL_OPTS
#define HERCULES_HDL_OPTS "p:l:"
#endif
#define HERCULES_OPTS_STRING HERCULES_BASE_OPTS HERCULES_SYM_OPTS HERCULES_HDL_OPTS
#if defined(HAVE_GETOPT_LONG)
static struct option longopts[] =
{
{ "help", no_argument, NULL, 'h' },
{ "config", required_argument, NULL, 'f' },
{ "rcfile", required_argument, NULL, 'r' },
{ "daemon", no_argument, NULL, 'd' },
{ "herclogo", required_argument, NULL, 'b' },
{ "verbose", no_argument, NULL, 'v' },
#if defined(OPTION_CONFIG_SYMBOLS)
{ "defsym", required_argument, NULL, 's' },
#endif
#if defined(OPTION_DYNAMIC_LOAD)
{ "modpath", required_argument, NULL, 'p' },
{ "ldmod", required_argument, NULL, 'l' },
#endif
{ NULL, 0, NULL, 0 }
};
while ((c = getopt_long( argc, argv, HERCULES_OPTS_STRING, longopts, NULL )) != EOF)
#else
while ((c = getopt( argc, argv, HERCULES_OPTS_STRING )) != EOF)
#endif
{
switch (c) {
case 'h':
arg_error = 1;
break;
case 'f':
cfgfile = optarg;
break;
case 'r':
rcname = optarg;
break;
#if defined(OPTION_CONFIG_SYMBOLS)
case 's':
{
char *sym = NULL;
char *value = NULL;
char *strtok_str = NULL;
if ( strlen( optarg ) >= 3 )
{
sym = strtok_r( optarg, "=", &strtok_str);
value = strtok_r( NULL, "=", &strtok_str);
if ( sym != NULL && value != NULL )
{
int j;
for( j = 0; j < (int)strlen( sym ); j++ )
if ( islower( sym[j] ) )
{
sym[j] = toupper( sym[j] );
}
set_symbol(sym, value);
}
else
WRMSG(HHC01419, "E" );
}
else
WRMSG(HHC01419, "E");
}
break;
#endif /* defined(OPTION_CONFIG_SYMBOLS) */
#if defined(OPTION_DYNAMIC_LOAD)
case 'p':
if(optarg)
hdl_setpath(strdup(optarg), FALSE);
break;
case 'l':
{
char *dllname, *strtok_str = NULL;
for(dllname = strtok_r(optarg,", ",&strtok_str);
dllname;
dllname = strtok_r(NULL,", ",&strtok_str))
{
if (dll_count < MAX_DLL_TO_LOAD - 1)
dll_load[++dll_count] = strdup(dllname);
else
{
WRMSG(HHC01406, "W", MAX_DLL_TO_LOAD);
break;
}
}
}
break;
#endif /* defined(OPTION_DYNAMIC_LOAD) */
case 'b':
sysblk.logofile = optarg;
break;
case 'v':
sysblk.msglvl |= MLVL_VERBOSE;
break;
case 'd':
sysblk.daemon_mode = 1;
break;
default:
arg_error = 1;
} /* end switch(c) */
} /* end while */
} /* end Process the command line options */
/* Treat filename None as special */
if(!strcasecmp(cfgfile,"None"))
cfgfile = NULL;
if (optind < argc)
arg_error = 1;
/* Terminate if invalid arguments were detected */
if (arg_error)
{
char pgm[MAX_PATH];
char* strtok_str = NULL;
strncpy(pgm, sysblk.hercules_pgmname, sizeof(pgm));
/* Show them all of our command-line arguments... */
WRMSG (HHC01414, "S", ""); // (blank line)
WRMSG (HHC01414, "S", ""); // (blank line)
#if defined(OPTION_DYNAMIC_LOAD)
// "Usage: %s [-f config-filename] [-d] [-b logo-filename] [-s sym=val]%s [> logfile]"
WRMSG (HHC01407, "S", strtok_r(pgm,".",&strtok_str),
" [-p dyn-load-dir] [[-l dynmod-to-load]...]");
#else
WRMSG (HHC01407, "S", strtok_r(pgm,".", &strtok_str), "");
#endif /* defined(OPTION_DYNAMIC_LOAD) */
WRMSG (HHC01414, "S", ""); // (blank line)
WRMSG (HHC01414, "S", ""); // (blank line)
fflush(stderr);
fflush(stdout);
usleep(100000);
return(1);
}
/* Initialize runtime opcode tables */
init_opcode_tables();
#if defined(OPTION_DYNAMIC_LOAD)
/* Initialize the hercules dynamic loader */
hdl_main();
/* Load modules requested at startup */
if (dll_count >= 0)
{
int hl_err = FALSE;
for ( dll_count = 0; dll_count < MAX_DLL_TO_LOAD; dll_count++ )
{
if (dll_load[dll_count] != NULL)
{
if (hdl_load(dll_load[dll_count], HDL_LOAD_DEFAULT) != 0)
{
hl_err = TRUE;
}
free(dll_load[dll_count]);
}
else
break;
}
if (hl_err)
{
usleep(10000); // give logger time to issue error message
WRMSG(HHC01408, "S");
delayed_exit(-1);
return(1);
}
}
#endif /* defined(OPTION_DYNAMIC_LOAD) */
#ifdef EXTERNALGUI
/* Set GUI flag if specified as final argument */
if (e_gui)
{
#if defined(OPTION_DYNAMIC_LOAD)
if (hdl_load("dyngui",HDL_LOAD_DEFAULT) != 0)
{
usleep(10000); /* (give logger thread time to issue
preceding HHC01516E message) */
WRMSG(HHC01409, "S");
delayed_exit(-1);
return(1);
}
#endif /* defined(OPTION_DYNAMIC_LOAD) */
}
#endif /*EXTERNALGUI*/
/* Register the SIGINT handler */
if ( signal (SIGINT, sigint_handler) == SIG_ERR )
{
WRMSG(HHC01410, "S", "SIGINT", strerror(errno));
delayed_exit(-1);
return(1);
}
/* Register the SIGTERM handler */
if ( signal (SIGTERM, sigterm_handler) == SIG_ERR )
{
WRMSG(HHC01410, "S", "SIGTERM", strerror(errno));
delayed_exit(-1);
return(1);
}
#if defined( _MSVC_ )
/* Register the Window console ctrl handlers */
if (!IsDebuggerPresent())
{
if (!SetConsoleCtrlHandler( console_ctrl_handler, TRUE ))
{
WRMSG( HHC01410, "S", "Console-ctrl", strerror( errno ));
delayed_exit(-1);
return(1);
}
}
#endif
#if defined(HAVE_DECL_SIGPIPE) && HAVE_DECL_SIGPIPE
/* Ignore the SIGPIPE signal, otherwise Hercules may terminate with
Broken Pipe error if the printer driver writes to a closed pipe */
if ( signal (SIGPIPE, SIG_IGN) == SIG_ERR )
{
WRMSG(HHC01411, "E", strerror(errno));
}
#endif
{
int fds[2];
initialize_lock(&sysblk.cnslpipe_lock);
initialize_lock(&sysblk.sockpipe_lock);
sysblk.cnslpipe_flag=0;
sysblk.sockpipe_flag=0;
VERIFY( create_pipe(fds) >= 0 );
sysblk.cnslwpipe=fds[1];
sysblk.cnslrpipe=fds[0];
VERIFY( create_pipe(fds) >= 0 );
sysblk.sockwpipe=fds[1];
sysblk.sockrpipe=fds[0];
}
#if !defined(NO_SIGABEND_HANDLER)
{
struct sigaction sa;
sa.sa_sigaction = (void*)&sigabend_handler;
#ifdef SA_NODEFER
sa.sa_flags = SA_NODEFER;
#else
sa.sa_flags = 0;
#endif
if( sigaction(SIGILL, &sa, NULL)
|| sigaction(SIGFPE, &sa, NULL)
|| sigaction(SIGSEGV, &sa, NULL)
|| sigaction(SIGBUS, &sa, NULL)
|| sigaction(SIGUSR1, &sa, NULL)
|| sigaction(SIGUSR2, &sa, NULL) )
{
WRMSG(HHC01410, "S", "SIGILL/FPE/SEGV/BUS/USR", strerror(errno));
delayed_exit(-1);
return(1);
}
}
#endif /*!defined(NO_SIGABEND_HANDLER)*/
if(cfgfile)
{
/* attempt to get lock on config file */
hostpath(pathname, cfgfile, sizeof(pathname));
#if defined( OPTION_LOCK_CONFIG_FILE )
/* Test that we can get a read the file */
if ( ( fd_cfg = HOPEN( pathname, O_RDONLY, S_IRUSR | S_IRGRP ) ) < 0 )
{
if ( errno == EACCES )
{
WRMSG( HHC01453, "S", cfgfile, strerror( errno ) );
delayed_exit(-1);
return(1);
}
}
else
{
if ( lseek(fd_cfg, 0L, 2) < 0 )
{
if ( errno == EACCES )
{
WRMSG( HHC01453, "S", cfgfile, strerror( errno ) );
delayed_exit(-1);
return(1);
}
}
close( fd_cfg );
}
/* File was not lock, therefore we can proceed */
#endif // OPTION_LOCK_CONFIG_FILE
}
/* System initialisation time */
sysblk.todstart = hw_clock() << 8;
#if !defined(NO_SIGABEND_HANDLER)
/* Start the watchdog */
rc = create_thread (&sysblk.wdtid, DETACHED,
watchdog_thread, NULL, "watchdog_thread");
if (rc)
{
WRMSG(HHC00102, "E", strerror(rc));
delayed_exit(-1);
return(1);
}
#endif /*!defined(NO_SIGABEND_HANDLER)*/
if(log_callback)
{
// 'herclin' called us. IT'S in charge. Create its requested
// logmsg intercept callback function and return back to it.
rc = create_thread(&logcbtid,DETACHED,
log_do_callback,NULL,"log_do_callback");
if (rc)
WRMSG(HHC00102, "E", strerror(rc));
return(0);
}
hdl_adsc("release_config", release_config, NULL);
/* Build system configuration */
if ( build_config (cfgfile) )
{
delayed_exit(-1);
return(1);
}
/* Start up the RC file processing thread */
rc = create_thread(&rctid,DETACHED,
process_rc_file,NULL,"process_rc_file");
if (rc)
WRMSG(HHC00102, "E", strerror(rc));
#if defined( OPTION_LOCK_CONFIG_FILE )
if(cfgfile)
{
if ( ( fd_cfg = HOPEN( pathname, O_RDONLY, S_IRUSR | S_IRGRP ) ) < 0 )
{
WRMSG( HHC01432, "S", pathname, "open()", strerror( errno ) );
delayed_exit(-1);
return(1);
}
else
{
#if defined( _MSVC_ )
if( ( rc = _locking( fd_cfg, _LK_NBRLCK, 1L ) ) < 0 )
{
int rc = errno;
WRMSG( HHC01454, "S", pathname, "_locking()", strerror( errno ) );
delayed_exit(-1);
return(1);
}
#else
fl_cfg.l_type = F_RDLCK;
fl_cfg.l_whence = SEEK_SET;
fl_cfg.l_start = 0;
fl_cfg.l_len = 1;
if ( fcntl(fd_cfg, F_SETLK, &fl_cfg) == -1 )
{
if (errno == EACCES || errno == EAGAIN)
{
WRMSG( HHC01432, "S", pathname, "fcntl()", strerror( errno ) );
delayed_exit(-1);
return(1);
}
}
#endif
}
}
#endif // OPTION_LOCK_CONFIG_FILE
//---------------------------------------------------------------
// The below functions will not return until Hercules is shutdown
//---------------------------------------------------------------
/* Activate the control panel */
if(!sysblk.daemon_mode)
panel_display ();
else
{
#if defined(OPTION_DYNAMIC_LOAD)
if(daemon_task)
daemon_task ();
else
#endif /* defined(OPTION_DYNAMIC_LOAD) */
{
/* Tell RC file and HAO threads they may now proceed */
sysblk.panel_init = 1;
/* Retrieve messages from logger and write to stderr */
while (1)
if((msgcnt = log_read(&msgbuf, &msgnum, LOG_BLOCK)))
if(isatty(STDERR_FILENO))
fwrite(msgbuf,msgcnt,1,stderr);
}
}
// -----------------------------------------------------
// *** Hercules has been shutdown (PAST tense) ***
// -----------------------------------------------------
#if defined( OPTION_LOCK_CONFIG_FILE )
if(cfgfile)
close( fd_cfg ); // release config file lock
#endif // OPTION_LOCK_CONFIG_FILE
ASSERT( sysblk.shutdown ); // (why else would we be here?!)
#ifdef _MSVC_
SetConsoleCtrlHandler(console_ctrl_handler, FALSE);
socket_deinit();
#endif
#if defined(OPTION_MSGCLR) || defined(OPTION_MSGHLD)
if ( sysblk.emsg & EMSG_TEXT )
fprintf(stdout, HHC01412 );
else
#endif
fprintf(stdout, MSG(HHC01412, "I"));
fflush(stdout);
usleep(10000);
return 0;
} /* end function impl */