void RunnerThread::run()
{
//cout << "MarSystemThread: running" << endl;
m_system->updControl("mrs_bool/active", true);
while(!m_stop && m_ticks)
{
//cout << "tick" << endl;
process_requests();
m_system->tick();
for (const auto & mapping : m_shared->controls)
mapping.second->push();
if (m_ticks > 0)
--m_ticks;
}
m_system->updControl("mrs_bool/active", false);
// make sure not to miss latest updates:
process_requests();
}
int main(int argc,char **argv)
{
int s,port;
if (argc<2){
printf("Usage: %s port\n",argv[0]);
exit(1);
}
port=atoi(argv[1]);
/* start server up */
s = start_server(port);
if (s>=0){
printf("Server started on port %i\n",port);
process_requests(s);
}
if (s==-1){
printf("Port reserved or out-of-range\n");
exit(1);
}
if (s==-2){
printf("Error creating socket\n");
exit(1);
}
fprintf(stderr,"udpft server exiting!\n");
return(1);
}
int main(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
extern FILE *dbf;
int opt;
dbf = fopen("/dev/null", "w");
if (!dbf) dbf = stderr;
cgi_setup(WEB_ROOT);
while ((opt = getopt(argc, argv,"s:")) != EOF) {
switch (opt) {
case 's':
pstrcpy(servicesf,optarg);
break;
}
}
print_header();
charset_initialise();
if (load_config()) {
cgi_load_variables(NULL);
process_requests();
show_services();
}
print_footer();
return 0;
}
// *************************************************************************************************
// @fn main
// @brief Main routine
// @param none
// @return none
// *************************************************************************************************
int main(void)
{
#ifdef EMU
emu_init();
#endif
// Init MCU
init_application();
// Assign initial value to global variables
init_global_variables();
#ifdef CONFIG_TEST
// Branch to welcome screen
test_mode();
#else
display_all_off();
#endif
// Main control loop: wait in low power mode until some event needs to be processed
while(1)
{
// When idle go to LPM3
idle_loop();
// Process wake-up events
if (button.all_flags || sys.all_flags) wakeup_event();
// Process actions requested by logic modules
if (request.all_flags) process_requests();
// Before going to LPM3, update display
if (display.all_flags) display_update();
}
}
/**
* Get an IP address as a string.
*
* @param sa host address
* @param salen length of host address in @a sa
* @param do_resolve use #GNUNET_NO to return numeric hostname
* @param timeout how long to try resolving
* @param callback function to call with hostnames
* last callback is NULL when finished
* @param cls closure for @a callback
* @return handle that can be used to cancel the request
*/
struct GNUNET_RESOLVER_RequestHandle *
GNUNET_RESOLVER_hostname_get (const struct sockaddr *sa,
socklen_t salen,
int do_resolve,
struct GNUNET_TIME_Relative timeout,
GNUNET_RESOLVER_HostnameCallback callback,
void *cls)
{
struct GNUNET_RESOLVER_RequestHandle *rh;
size_t ip_len;
const void *ip;
check_config ();
switch (sa->sa_family)
{
case AF_INET:
GNUNET_assert (salen == sizeof (struct sockaddr_in));
ip_len = sizeof (struct in_addr);
ip = &((const struct sockaddr_in*)sa)->sin_addr;
break;
case AF_INET6:
GNUNET_assert (salen == sizeof (struct sockaddr_in6));
ip_len = sizeof (struct in6_addr);
ip = &((const struct sockaddr_in6*)sa)->sin6_addr;
break;
default:
GNUNET_break (0);
return NULL;
}
rh = GNUNET_malloc (sizeof (struct GNUNET_RESOLVER_RequestHandle) + salen);
rh->name_callback = callback;
rh->cls = cls;
rh->af = sa->sa_family;
rh->timeout = GNUNET_TIME_relative_to_absolute (timeout);
memcpy (&rh[1], ip, ip_len);
rh->data_len = ip_len;
rh->direction = GNUNET_YES;
rh->received_response = GNUNET_NO;
if (GNUNET_NO == do_resolve)
{
rh->task = GNUNET_SCHEDULER_add_now (&numeric_reverse, rh);
return rh;
}
GNUNET_CONTAINER_DLL_insert_tail (req_head,
req_tail,
rh);
rh->was_queued = GNUNET_YES;
if (NULL != s_task)
{
GNUNET_SCHEDULER_cancel (s_task);
s_task = NULL;
}
process_requests ();
return rh;
}
void
accept_connection(SOCKET listen_fd) {
struct sockaddr_storage peeraddr;
netperf_socklen_t peeraddrlen;
#if defined(SO_KEEPALIVE)
int on = 1;
#endif
if (debug) {
fprintf(where,
"%s: enter\n",
__FUNCTION__);
fflush(where);
}
peeraddrlen = sizeof(peeraddr);
/* while server_control is only used by the WIN32 path, but why
bother ifdef'ing it? and besides, do we *really* need knowledge
of server_control in the WIN32 case? do we have to tell the
child about *all* the listen endpoints? raj 2011-07-08 */
server_control = listen_fd;
if ((server_sock = accept(listen_fd,
(struct sockaddr *)&peeraddr,
&peeraddrlen)) == INVALID_SOCKET) {
fprintf(where,
"%s: accept failure: %s (errno %d)\n",
__FUNCTION__,
strerror(errno),
errno);
fflush(where);
exit(1);
}
#if defined(SO_KEEPALIVE)
/* we are not terribly concerned if this does not work, it is merely
duct tape added to belts and suspenders. raj 2011-07-08 */
setsockopt(server_sock,
SOL_SOCKET,
SO_KEEPALIVE,
(const char *)&on,
sizeof(on));
#endif
if (spawn_on_accept) {
spawn_child();
/* spawn_child() only returns when we are the parent */
close(server_sock);
}
else {
process_requests();
}
}
/**
* Convert a string to one or more IP addresses.
*
* @param hostname the hostname to resolve
* @param af AF_INET or AF_INET6; use AF_UNSPEC for "any"
* @param callback function to call with addresses
* @param callback_cls closure for callback
* @param timeout how long to try resolving
* @return handle that can be used to cancel the request, NULL on error
*/
struct GNUNET_RESOLVER_RequestHandle *
GNUNET_RESOLVER_ip_get (const char *hostname, int af,
struct GNUNET_TIME_Relative timeout,
GNUNET_RESOLVER_AddressCallback callback,
void *callback_cls)
{
struct GNUNET_RESOLVER_RequestHandle *rh;
size_t slen;
unsigned int i;
struct in_addr v4;
struct in6_addr v6;
slen = strlen (hostname) + 1;
if (slen + sizeof (struct GNUNET_RESOLVER_GetMessage) >=
GNUNET_SERVER_MAX_MESSAGE_SIZE)
{
GNUNET_break (0);
return NULL;
}
rh = GNUNET_malloc (sizeof (struct GNUNET_RESOLVER_RequestHandle) + slen);
rh->af = af;
rh->addr_callback = callback;
rh->cls = callback_cls;
memcpy (&rh[1], hostname, slen);
rh->data_len = slen;
rh->timeout = GNUNET_TIME_relative_to_absolute (timeout);
rh->direction = GNUNET_NO;
/* first, check if this is a numeric address */
if (((1 == inet_pton (AF_INET, hostname, &v4)) &&
((af == AF_INET) || (af == AF_UNSPEC))) ||
((1 == inet_pton (AF_INET6, hostname, &v6)) &&
((af == AF_INET6) || (af == AF_UNSPEC))))
{
rh->task = GNUNET_SCHEDULER_add_now (&numeric_resolution, rh);
return rh;
}
/* then, check if this is a loopback address */
i = 0;
while (loopback[i] != NULL)
if (0 == strcasecmp (loopback[i++], hostname))
{
rh->task = GNUNET_SCHEDULER_add_now (&loopback_resolution, rh);
return rh;
}
GNUNET_CONTAINER_DLL_insert_tail (req_head, req_tail, rh);
rh->was_queued = GNUNET_YES;
if (s_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (s_task);
s_task = GNUNET_SCHEDULER_NO_TASK;
}
process_requests ();
return rh;
}
int main(int argc, char ** argv)
{
unsigned int thread_count;
int result = cloudi_initialize_thread_count(&thread_count);
assert(result == cloudi_success);
assert(thread_count == 1);
process_requests_t data = {0};
process_requests(&data);
return 0;
}
/**
* Now try to reconnect to the resolver service.
*
* @param cls NULL
* @param tc scheduler context
*/
static void
reconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
r_task = GNUNET_SCHEDULER_NO_TASK;
if (NULL == req_head)
return; /* no work pending */
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Trying to connect to DNS service\n");
client = GNUNET_CLIENT_connect ("resolver", resolver_cfg);
if (NULL == client)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect, will try again later\n");
reconnect ();
return;
}
process_requests ();
}
int main(int argc, char ** argv)
{
if (argc != 4)
{
printf("Usage: %s thread_count protocol buffer_size", argv[0]);
return 1;
}
int const count = atoi(argv[1]);
char const * const protocol = argv[2];
int const buffer_size = atoi(argv[3]);
assert(count == 1);
process_requests_t data = {0, protocol, buffer_size};
process_requests(&data);
return 0;
}
int main(int argc, char *argv[]) {
char *host = "localhost";
char *port = "50000";
int opt;
while ((opt = getopt(argc, argv, "tuh:p:")) != -1) {
switch (opt) {
case 'h':
host = optarg;
break;
case 'p':
port = optarg;
break;
case '?':
fprintf(stderr, "Unknown option: %c\n", optopt);
exit(EXIT_FAILURE);
default:
fprintf(stderr, "Failed to parse command line arguments\n");
exit(EXIT_FAILURE);
}
}
if (optind != argc) {
fprintf(stderr, "Some unexpected command line arguments are given\n");
exit(EXIT_FAILURE);
}
int sockfd = create_socket(host, port);
if (-1 == sockfd) {
exit(EXIT_FAILURE);
}
process_requests(STDIN_FILENO, sockfd, STDOUT_FILENO);
return 0;
}
/* the routine we call when we are going to spawn/fork/whatnot a child
process from the parent netserver daemon. raj 2011-07-08 */
void
spawn_child() {
#if defined(HAVE_FORK)
if (debug) {
fprintf(where,
"%s: enter\n",
__FUNCTION__);
fflush(where);
}
/* flush the usual suspects */
fflush(stdin);
fflush(stdout);
fflush(stderr);
fflush(where);
signal(SIGCLD,SIG_IGN);
switch (fork()) {
case -1:
fprintf(where,
"%s: fork() error %s (errno %d)\n",
__FUNCTION__,
strerror(errno),
errno);
fflush(where);
exit(1);
case 0:
/* we are the child, but not of inetd. we don't know if we are
the child of a daemonized parent or not, so we still need to
worry about the standard file descriptors. raj 2011-07-11 */
close_listens(listen_list);
open_debug_file();
child = 1;
netperf_daemon = 0;
process_requests();
exit(0);
break;
default:
/* we are the parent, not a great deal to do here, but we may
want to reap some children */
#if !defined(HAVE_SETSID)
/* Only call "waitpid()" if "setsid()" is not used. */
while(waitpid(-1, NULL, WNOHANG) > 0) {
if (debug) {
fprintf(where,
"%s: reaped a child process\n",
__FUNCTION__);
}
}
#endif
break;
}
#elif defined(WIN32)
BOOL b;
char *cmdline;
int cmdline_length;
int cmd_index;
PROCESS_INFORMATION pi;
STARTUPINFO si;
int i;
if (debug) {
fprintf(where,
"%s: enter\n",
__FUNCTION__);
fflush(where);
}
/* create the cmdline array based on strlen(program) + 80 chars */
cmdline_length = strlen(program) + 80;
cmdline = malloc(cmdline_length + 1); // +1 for trailing null
memset(&si, 0 , sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
/* Pass the server_sock as stdin for the new process. Hopefully
this will continue to be created with the OBJ_INHERIT
attribute. */
si.hStdInput = (HANDLE)server_sock;
si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
si.dwFlags = STARTF_USESTDHANDLES;
/* Build cmdline for child process */
strcpy(cmdline, program);
cmd_index = strlen(cmdline);
if (verbosity > 1) {
cmd_index += snprintf(&cmdline[cmd_index],
cmdline_length - cmd_index,
" -v %d",
verbosity);
}
for (i=0; i < debug; i++) {
cmd_index += snprintf(&cmdline[cmd_index],
cmdline_length - cmd_index,
" -d");
}
cmd_index += snprintf(&cmdline[cmd_index],
cmdline_length - cmd_index,
" -I %x",
(int)(UINT_PTR)server_sock);
/* are these -i settings even necessary? the command line scanning
does not seem to do anything with them */
cmd_index += snprintf(&cmdline[cmd_index],
cmdline_length - cmd_index,
" -i %x",
(int)(UINT_PTR)server_control);
cmd_index += snprintf(&cmdline[cmd_index],
cmdline_length - cmd_index,
" -i %x",
(int)(UINT_PTR)where);
b = CreateProcess(NULL, /* Application Name */
cmdline,
NULL, /* Process security attributes */
NULL, /* Thread security attributes */
TRUE, /* Inherit handles */
0, /* Creation flags
PROCESS_QUERY_INFORMATION, */
NULL, /* Enviornment */
NULL, /* Current directory */
&si, /* StartupInfo */
&pi);
if (!b)
{
perror("CreateProcessfailure: ");
free(cmdline); /* even though we exit :) */
exit(1);
}
/* We don't need the thread or process handles any more;
let them go away on their own timeframe. */
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
/* the caller/parent will close server_sock */
free(cmdline);
#else
fprintf(where,
"%s called on platform which cannot spawn children\n",
__FUNCTION__);
fflush(where);
exit(1);
#endif /* HAVE_FORK */
}
int _cdecl
main(int argc, char *argv[]) {
#ifdef WIN32
WSADATA wsa_data ;
/* Initialize the winsock lib do we still want version 2.2? */
if ( WSAStartup(MAKEWORD(2,2), &wsa_data) == SOCKET_ERROR ){
printf("WSAStartup() failed : %lu\n", GetLastError()) ;
return -1 ;
}
#endif /* WIN32 */
/* Save away the program name */
program = (char *)malloc(strlen(argv[0]) + 1);
if (program == NULL) {
printf("malloc for program name failed!\n");
return -1 ;
}
strcpy(program, argv[0]);
init_netserver_globals();
netlib_init();
strncpy(local_host_name,"",sizeof(local_host_name));
local_address_family = AF_UNSPEC;
strncpy(listen_port,TEST_PORT,sizeof(listen_port));
scan_netserver_args(argc, argv);
check_if_inetd();
if (child) {
/* we are the child of either an inetd or parent netserver via
spawning (Windows) rather than fork()ing. if we were fork()ed
we would not be coming through this way. set_server_sock() must
be called before open_debug_file() or there is a chance that
we'll toast the descriptor when we do not wish it. */
set_server_sock();
open_debug_file();
process_requests();
}
else if (daemon_parent) {
/* we are the parent daemonized netserver
process. accept_connections() will decide if we want to spawn a
child process */
accept_connections();
}
else {
/* we are the top netserver process, so we have to create the
listen endpoint(s) and decide if we want to daemonize */
setup_listens(local_host_name,listen_port,local_address_family);
if (want_daemonize) {
daemonize();
}
accept_connections();
}
unlink_empty_debug_file();
#ifdef WIN32
WSACleanup();
#endif
return 0;
}
void set_up_server()
{
struct servent *sp; /* server entity */
struct sockaddr_in server;
struct sockaddr_in peeraddr;
int server_control;
int peeraddr_len;
int ppid,pid;
server.sin_port = htons(listen_port_num);
server.sin_addr.s_addr = INADDR_ANY;
server.sin_family = AF_INET;
printf("Starting netserver at port %d\n",listen_port_num);
server_control = socket (AF_INET,SOCK_STREAM,0);
if (server_control < 0)
{
perror("server_set_up: creating the socket");
exit(1);
}
if (bind (server_control,
(struct sockaddr *)&server,
sizeof(struct sockaddr_in)) == -1)
{
perror("server_set_up: binding the socket");
exit (1);
}
if (listen (server_control,5) == -1)
{
perror("server_set_up: listening");
exit(1);
}
/*
setpgrp();
*/
switch (fork())
{
case -1:
perror("netperf server error");
exit(1);
case 0:
/* stdin/stderr should use fclose */
fclose(stdin);
fclose(stderr);
setpgrp();
/* some OS's have SIGCLD defined as SIGCHLD */
#ifndef SIGCLD
#define SIGCLD SIGCHLD
#endif /* SIGCLD */
signal(SIGCLD, SIG_IGN);
for (;;)
{
peeraddr_len = sizeof(peeraddr);
if ((server_sock=accept(server_control,
(struct sockaddr *)&peeraddr,
&peeraddr_len)) == -1)
{
printf("server_control: accept failed\n");
exit(1);
}
signal(SIGCLD, SIG_IGN);
switch (fork())
{
case -1:
/* something went wrong */
exit(1);
case 0:
/* we are the child process */
close(server_control);
process_requests();
exit(0);
break;
default:
/* we are the parent process */
close(server_sock);
/* we should try to "reap" some of our children. on some */
/* systems they are being left as defunct processes. we */
/* will call waitpid, looking for any child process, */
/* with the WNOHANG feature. when waitpid return a zero, */
/* we have reaped all the children there are to reap at */
/* the moment, so it is time to move on. raj 12/94 */
#ifndef DONT_WAIT
while(waitpid(-1, NULL, WNOHANG) > 0) { }
#endif /* DONT_WAIT */
break;
}
} /*for*/
break; /*case 0*/
default:
exit (0);
}
}
int _cdecl
main(int argc, char *argv[])
{
int c;
int not_inetd = 0;
#ifdef WIN32
BOOL child = FALSE;
#endif
char arg1[BUFSIZ], arg2[BUFSIZ];
#ifndef PATH_MAX
#define PATH_MAX MAX_PATH
#endif
char FileName[PATH_MAX]; /* for opening the debug log file */
struct sockaddr name;
netperf_socklen_t namelen = sizeof(name);
#ifdef WIN32
WSADATA wsa_data ;
/* Initialize the winsock lib ( version 2.2 ) */
if ( WSAStartup(MAKEWORD(2,2), &wsa_data) == SOCKET_ERROR ){
printf("WSAStartup() failed : %d\n", GetLastError()) ;
return 1 ;
}
#endif /* WIN32 */
/* Save away the program name */
program = (char *)malloc(strlen(argv[0]) + 1);
if (program == NULL) {
printf("malloc(%d) failed!\n", strlen(argv[0]) + 1);
return 1 ;
}
strcpy(program, argv[0]);
netlib_init();
/* Scan the command line to see if we are supposed to set-up our own */
/* listen socket instead of relying on inetd. */
/* first set a copy of initial values */
strncpy(local_host_name,"0.0.0.0",sizeof(local_host_name));
local_address_family = AF_UNSPEC;
strncpy(listen_port,TEST_PORT,sizeof(listen_port));
while ((c = getopt(argc, argv, SERVER_ARGS)) != EOF) {
switch (c) {
case '?':
case 'h':
print_netserver_usage();
exit(1);
case 'd':
/* we want to set the debug file name sometime */
debug++;
break;
case 'L':
not_inetd = 1;
break_args_explicit(optarg,arg1,arg2);
if (arg1[0]) {
strncpy(local_host_name,arg1,sizeof(local_host_name));
}
if (arg2[0]) {
local_address_family = parse_address_family(arg2);
/* if only the address family was set, we may need to set the
local_host_name accordingly. since our defaults are IPv4
this should only be necessary if we have IPv6 support raj
2005-02-07 */
#if defined (AF_INET6)
if (!arg1[0]) {
strncpy(local_host_name,"::0",sizeof(local_host_name));
}
#endif
}
break;
case 'n':
shell_num_cpus = atoi(optarg);
if (shell_num_cpus > MAXCPUS) {
fprintf(stderr,
"netserver: This version can only support %d CPUs. Please",
MAXCPUS);
fprintf(stderr,
" increase MAXCPUS in netlib.h and recompile.\n");
fflush(stderr);
exit(1);
}
break;
case 'p':
/* we want to open a listen socket at a */
/* specified port number */
strncpy(listen_port,optarg,sizeof(listen_port));
not_inetd = 1;
break;
case '4':
local_address_family = AF_INET;
break;
case '6':
#if defined(AF_INET6)
local_address_family = AF_INET6;
strncpy(local_host_name,"::0",sizeof(local_host_name));
#else
local_address_family = AF_UNSPEC;
#endif
break;
case 'v':
/* say how much to say */
verbosity = atoi(optarg);
break;
case 'V':
printf("Netperf version %s\n",NETPERF_VERSION);
exit(0);
break;
#ifdef WIN32
/*+*+SAF */
case 'I':
child = TRUE;
/* This is the handle we expect to inherit. */
/*+*+SAF server_sock = (HANDLE)atoi(optarg); */
break;
case 'i':
/* This is a handle we should NOT inherit. */
/*+*+SAF CloseHandle((HANDLE)atoi(optarg)); */
break;
#endif
}
}
/* +*+SAF I need a better way to find inherited handles I should close! */
/* +*+SAF Use DuplicateHandle to force inheritable attribute (or reset it)? */
/* unlink(DEBUG_LOG_FILE); */
strcpy(FileName, DEBUG_LOG_FILE);
#ifndef WIN32
snprintf(&FileName[strlen(FileName)], sizeof(FileName) - strlen(FileName), "_%d", getpid());
if ((where = fopen(FileName, "w")) == NULL) {
perror("netserver: debug file");
exit(1);
}
#else
{
if (child) {
snprintf(&FileName[strlen(FileName)], sizeof(FileName) - strlen(FileName), "_%x", getpid());
}
/* Hopefully, by closing stdout & stderr, the subsequent
fopen calls will get mapped to the correct std handles. */
fclose(stdout);
if ((where = fopen(FileName, "w")) == NULL) {
perror("netserver: fopen of debug file as new stdout failed!");
exit(1);
}
fclose(stderr);
if ((where = fopen(FileName, "w")) == NULL) {
fprintf(stdout, "fopen of debug file as new stderr failed!\n");
exit(1);
}
}
#endif
#ifndef WIN32
chmod(DEBUG_LOG_FILE,0644);
#endif
#if WIN32
if (child) {
server_sock = (SOCKET)GetStdHandle(STD_INPUT_HANDLE);
}
#endif
/* if we are not a child of an inetd or the like, then we should
open a socket and hang listens off of it. otherwise, we should go
straight into processing requests. the do_listen() routine will sit
in an infinite loop accepting connections and forking child
processes. the child processes will call process_requests */
/* If fd 0 is not a socket then assume we're not being called */
/* from inetd and start server socket on the default port. */
/* this enhancement comes from [email protected] (Von Welch) */
if (not_inetd) {
/* the user specified a port number on the command line */
set_up_server(local_host_name,listen_port,local_address_family);
}
#ifdef WIN32
/* OK, with Win2003 WinNT's POSIX subsystem is gone, and hence so is */
/* fork. But hopefully the kernel support will continue to exist */
/* for some time. We are not counting on the address space */
/* copy_on_write support, since it isn't exposed except through the */
/* NT native APIs (which are not public). We will try to use the */
/* InheritHandles flag in CreateProcess though since this is public */
/* and is used for more than just POSIX so hopefully it won't go */
/* away. */
else if (TRUE) {
if (child) {
process_requests();
} else {
strncpy(listen_port,TEST_PORT,sizeof(listen_port));
set_up_server(local_host_name,listen_port,local_address_family);
}
}
#endif
#if !defined(__VMS)
else if (getsockname(0, &name, &namelen) == SOCKET_ERROR) {
/* we may not be a child of inetd */
if (errno == ENOTSOCK) {
strncpy(listen_port,TEST_PORT,sizeof(listen_port));
set_up_server(local_host_name,listen_port,local_address_family);
}
}
#endif /* !defined(__VMS) */
else {
/* we are probably a child of inetd, or are being invoked via the
VMS auxilliarly server mechanism */
#if !defined(__VMS)
server_sock = 0;
#else
if ( (server_sock = socket(TCPIP$C_AUXS, SOCK_STREAM, 0)) == INVALID_SOCKET )
{
perror("Failed to grab aux server socket" );
exit(1);
}
#endif /* !defined(__VMS) */
process_requests();
}
#ifdef WIN32
/* Cleanup the winsock lib */
WSACleanup();
#endif
return(0);
}
int main(int argc, char **argv)
{
int sock;
uid_t own_u;
gid_t own_g;
char *rpath = NULL;
char *sock_name = NULL;
struct stat stbuf;
int c, option_index;
#ifdef FS_IOC_GETVERSION
int retval;
struct statfs st_fs;
#endif
prog_name = g_path_get_basename(argv[0]);
is_daemon = true;
sock = -1;
own_u = own_g = -1;
while (1) {
option_index = 0;
c = getopt_long(argc, argv, "p:nh?f:s:u:g:", helper_opts,
&option_index);
if (c == -1) {
break;
}
switch (c) {
case 'p':
rpath = g_strdup(optarg);
break;
case 'n':
is_daemon = false;
break;
case 'f':
sock = atoi(optarg);
break;
case 's':
sock_name = g_strdup(optarg);
break;
case 'u':
own_u = atoi(optarg);
break;
case 'g':
own_g = atoi(optarg);
break;
case '?':
case 'h':
default:
usage();
exit(EXIT_FAILURE);
}
}
/* Parameter validation */
if ((sock_name == NULL && sock == -1) || rpath == NULL) {
fprintf(stderr, "socket, socket descriptor or path not specified\n");
usage();
return -1;
}
if (sock_name && sock != -1) {
fprintf(stderr, "both named socket and socket descriptor specified\n");
usage();
exit(EXIT_FAILURE);
}
if (sock_name && (own_u == -1 || own_g == -1)) {
fprintf(stderr, "owner uid:gid not specified, ");
fprintf(stderr,
"owner uid:gid specifies who can access the socket file\n");
usage();
exit(EXIT_FAILURE);
}
if (lstat(rpath, &stbuf) < 0) {
fprintf(stderr, "invalid path \"%s\" specified, %s\n",
rpath, strerror(errno));
exit(EXIT_FAILURE);
}
if (!S_ISDIR(stbuf.st_mode)) {
fprintf(stderr, "specified path \"%s\" is not directory\n", rpath);
exit(EXIT_FAILURE);
}
if (is_daemon) {
if (daemon(0, 0) < 0) {
fprintf(stderr, "daemon call failed\n");
exit(EXIT_FAILURE);
}
openlog(PROGNAME, LOG_PID, LOG_DAEMON);
}
do_log(LOG_INFO, "Started\n");
if (sock_name) {
sock = proxy_socket(sock_name, own_u, own_g);
if (sock < 0) {
goto error;
}
}
if (chroot(rpath) < 0) {
do_perror("chroot");
goto error;
}
if (chdir("/") < 0) {
do_perror("chdir");
goto error;
}
get_version = false;
#ifdef FS_IOC_GETVERSION
/* check whether underlying FS support IOC_GETVERSION */
retval = statfs("/", &st_fs);
if (!retval) {
switch (st_fs.f_type) {
case EXT2_SUPER_MAGIC:
case BTRFS_SUPER_MAGIC:
case REISERFS_SUPER_MAGIC:
case XFS_SUPER_MAGIC:
get_version = true;
break;
}
}
#endif
umask(0);
if (init_capabilities() < 0) {
goto error;
}
process_requests(sock);
error:
g_free(rpath);
g_free(sock_name);
do_log(LOG_INFO, "Done\n");
closelog();
return 0;
}
void loop(int server_s)
{
FD_ZERO(BOA_READ);
FD_ZERO(BOA_WRITE);
max_fd = -1;
while (1) {
/* handle signals here */
if (sighup_flag)
sighup_run();
if (sigchld_flag)
sigchld_run();
if (sigalrm_flag)
sigalrm_run();
if (sigterm_flag) {
/* sigterm_flag:
* 1. caught, unprocessed.
* 2. caught, stage 1 processed
*/
if (sigterm_flag == 1) {
sigterm_stage1_run();
BOA_FD_CLR(req, server_s, BOA_READ);
close(server_s);
/* make sure the server isn't in the block list */
server_s = -1;
}
if (sigterm_flag == 2 && !request_ready && !request_block) {
sigterm_stage2_run(); /* terminal */
}
} else {
if (total_connections > max_connections) {
/* FIXME: for poll we don't subtract 20. why? */
BOA_FD_CLR(req, server_s, BOA_READ);
} else {
BOA_FD_SET(req, server_s, BOA_READ); /* server always set */
}
}
if (isREBOOTASP == 1) {
if(last_req_after_upgrade != req_after_upgrade){
last_req_after_upgrade = req_after_upgrade;
}
}
pending_requests = 0;
/* max_fd is > 0 when something is blocked */
if (max_fd) {
struct timeval req_timeout; /* timeval for select */
req_timeout.tv_sec = (request_ready ? 0 : default_timeout);
req_timeout.tv_usec = 0l; /* reset timeout */
if (select(max_fd + 1, BOA_READ,
BOA_WRITE, NULL,
(request_ready || request_block ?
&req_timeout : NULL)) == -1) {
/* what is the appropriate thing to do here on EBADF */
if (errno == EINTR) {
//fprintf(stderr,"####%s:%d isFWUPGRADE=%d isREBOOTASP=%d###\n", __FILE__, __LINE__ ,isFWUPGRADE , isREBOOTASP);
//fprintf(stderr,"####%s:%d last_req_after_upgrade=%d req_after_upgrade=%d confirm_last_req=%d###\n", __FILE__, __LINE__ ,last_req_after_upgrade , req_after_upgrade, confirm_last_req);
if (isFWUPGRADE !=0 && isREBOOTASP == 1 ) {
if (last_req_after_upgrade == req_after_upgrade)
confirm_last_req++;
if (confirm_last_req >3)
goto ToUpgrade;
} else if(isCFGUPGRADE ==2 && isREBOOTASP == 1 ) {
goto ToReboot;
}
else if (isFWUPGRADE ==0 && isREBOOTASP == 1) {
if (last_req_after_upgrade == req_after_upgrade)
confirm_last_req++;
if (confirm_last_req >3) {
isFWUPGRADE = 0;
isREBOOTASP = 0;
//isFAKEREBOOT = 0;
confirm_last_req=0;
}
}
continue; /* while(1) */
}
else if (errno != EBADF) {
DIE("select");
}
}
/* FIXME: optimize for when select returns 0 (timeout).
* Thus avoiding many operations in fdset_update
* and others.
*/
if (!sigterm_flag && FD_ISSET(server_s, BOA_READ)) {
pending_requests = 1;
}
time(¤t_time); /* for "new" requests if we've been in
* select too long */
/* if we skip this section (for example, if max_fd == 0),
* then we aren't listening anyway, so we can't accept
* new conns. Don't worry about it.
*/
}
/* reset max_fd */
max_fd = -1;
if (request_block) {
/* move selected req's from request_block to request_ready */
fdset_update();
}
/* any blocked req's move from request_ready to request_block */
if (pending_requests || request_ready) {
if (isFWUPGRADE !=0 && isREBOOTASP == 1 ){
req_after_upgrade++;
}else if(isFWUPGRADE ==0 && isREBOOTASP == 1){
req_after_upgrade++;
}
process_requests(server_s);
continue;
}
ToUpgrade:
if (isFWUPGRADE !=0 && isREBOOTASP == 1 ) {
char buffer[200];
//fprintf(stderr,"\r\n [%s-%u] FirmwareUpgrade start",__FILE__,__LINE__);
FirmwareUpgrade(firmware_data, firmware_len, 0, buffer);
//fprintf(stderr,"\r\n [%s-%u] FirmwareUpgrade end",__FILE__,__LINE__);
//system("echo 7 > /proc/gpio"); // disable system LED
isFWUPGRADE=0;
isREBOOTASP=0;
//reboot_time = 5;
break;
}
ToReboot:
if(isCFGUPGRADE == 2 && isREBOOTASP ==1) {
isCFGUPGRADE=0;
isREBOOTASP=0;
system("reboot");
for(;;);
}
}
}
void set_up_server()
{
struct sockaddr_in server;
struct sockaddr_in peeraddr;
int server_control;
int peeraddr_len;
server.sin_port = htons(listen_port_num);
server.sin_addr.s_addr = INADDR_ANY;
server.sin_family = AF_INET;
printf("Starting netserver at port %d\n",listen_port_num);
server_control = socket (AF_INET,SOCK_STREAM,0);
#ifdef WIN32
if (server_control == INVALID_SOCKET)
#else
if (server_control < 0)
#endif /* WIN32 */
{
perror("server_set_up: creating the socket");
exit(1);
}
if (bind (server_control,
(struct sockaddr *)&server,
sizeof(struct sockaddr_in)) == -1)
{
perror("server_set_up: binding the socket");
exit (1);
}
if (listen (server_control,5) == -1)
{
perror("server_set_up: listening");
exit(1);
}
/*
setpgrp();
*/
#if !defined(WIN32) && !defined(VXWORKS)
switch (fork())
{
case -1:
perror("netperf server error");
exit(1);
case 0:
/* stdin/stderr should use fclose */
fclose(stdin);
fclose(stderr);
/* can I just use setsid on all systems? raj 4/96 */
#if defined(__NetBSD__) || defined(__bsdi__) || defined(sun) || defined(__FREEBSD__)
setsid();
#else
setpgrp();
#endif
/* some OS's have SIGCLD defined as SIGCHLD */
#ifndef SIGCLD
#define SIGCLD SIGCHLD
#endif /* SIGCLD */
signal(SIGCLD, SIG_IGN);
#endif /* WIN32 || VXWORKS*/
for (;;)
{
peeraddr_len = sizeof(peeraddr);
if ((server_sock=accept(server_control,
(struct sockaddr *)&peeraddr,
&peeraddr_len)) == -1)
{
printf("server_control: accept failed\n");
exit(1);
}
#if defined(WIN32) || defined(VXWORKS)
/*
* Since we cannot fork this process , we cant fire any threads
* as they all share the same global data . So we better allow
* one request at at time
*/
process_requests() ;
close (server_sock); /* pavel 5-Feb-1998 */
}
#else
signal(SIGCLD, SIG_IGN);
switch (fork())
{
case -1:
/* something went wrong */
exit(1);
case 0:
/* we are the child process */
close(server_control);
process_requests();
exit(0);
break;
default:
/* we are the parent process */
close(server_sock);
/* we should try to "reap" some of our children. on some */
/* systems they are being left as defunct processes. we */
/* will call waitpid, looking for any child process, */
/* with the WNOHANG feature. when waitpid return a zero, */
/* we have reaped all the children there are to reap at */
/* the moment, so it is time to move on. raj 12/94 */
#ifndef DONT_WAIT
while(waitpid(-1, NULL, WNOHANG) > 0) { }
#endif /* DONT_WAIT */
break;
}
} /*for*/
break; /*case 0*/
default:
exit (0);
}
void select_loop(int server_s)
{
FD_ZERO(&block_read_fdset);
FD_ZERO(&block_write_fdset);
/* set server_s and req_timeout */
req_timeout.tv_sec = (ka_timeout ? ka_timeout : REQUEST_TIMEOUT);
req_timeout.tv_usec = 0l; /* reset timeout */
/* preset max_fd */
max_fd = -1;
while (1) {
if (sighup_flag)
sighup_run();
if (sigchld_flag)
sigchld_run();
if (sigalrm_flag)
sigalrm_run();
if (sigterm_flag) {
if (sigterm_flag == 1)
sigterm_stage1_run(server_s);
if (sigterm_flag == 2 /*&& !request_ready && !request_block*/) {
sigterm_stage2_run();
}
}
/* reset max_fd */
max_fd = -1;
if (request_block)
{
/* move selected req's from request_block to request_ready */
//fprintf(stderr, "fdsetupdated\n");
fdset_update();
}
/* any blocked req's move from request_ready to request_block */
process_requests(server_s);
if (!sigterm_flag && total_connections < (max_connections - 10)
#if defined(TCSUPPORT_WEBSERVER_SSL)
&& http_mode != HTTPS_ONLY
#endif
) {
BOA_FD_SET(server_s, &block_read_fdset);
}
#if defined(TCSUPPORT_WEBSERVER_SSL)
if (!sigterm_flag && total_connections < (max_connections - 10) && http_mode != HTTP_ONLY)
{
BOA_FD_SET(server_ssl, &block_read_fdset);
}
#endif
req_timeout.tv_sec = (request_ready ? 0 :
(ka_timeout ? ka_timeout : REQUEST_TIMEOUT));
req_timeout.tv_usec = 0l; /* reset timeout */
if (select(max_fd + 1, &block_read_fdset,
&block_write_fdset, NULL,
(request_ready || request_block ? &req_timeout : NULL)) == -1) {
/* what is the appropriate thing to do here on EBADF */
if (errno == EINTR)
{
continue; /* while(1) */
}
else if (errno != EBADF) {
DIE("select");
}
}
time(¤t_time);
if (FD_ISSET(server_s, &block_read_fdset))
{
pending_requests = 1;
}
#if defined(TCSUPPORT_WEBSERVER_SSL)
if (FD_ISSET(server_ssl, &block_read_fdset))
{
ssl_pending_requests = 1;
}
#endif
}
}
void loop(int server_s)
{
struct pollfd pfd1[2][MAX_FD];
short which = 0, other = 1, temp;
int server_pfd, watch_server;
pfds = pfd1[which];
pfd_len = server_pfd = 0;
watch_server = 1;
while (1) {
int timeout;
time(¤t_time);
if (sighup_flag)
sighup_run();
if (sigchld_flag)
sigchld_run();
if (sigalrm_flag)
sigalrm_run();
if (sigterm_flag) {
if (sigterm_flag == 1) {
sigterm_stage1_run();
close(server_s);
server_s = -1;
/* remove server_pfd */
{
unsigned int i, j;
for(i = 0, j = 0;i < pfd_len;++i) {
if (i == (unsigned) server_pfd)
continue;
pfd1[other][j].fd = pfd1[which][j].fd;
pfd1[other][j].events = pfd1[which][j].events;
++j;
}
pfd_len = j;
pfds = pfd1[other];
temp = other;
other = which;
which = temp;
}
watch_server = 0;
}
if (sigterm_flag == 2 && !request_ready && !request_block) {
sigterm_stage2_run();
}
} else {
if (total_connections < max_connections) {
server_pfd = pfd_len++;
pfds[server_pfd].fd = server_s;
pfds[server_pfd].events = BOA_READ;
watch_server = 1;
} else {
watch_server = 0;
}
}
/* If there are any requests ready, the timeout is 0.
* If not, and there are any requests blocking, the
* timeout is ka_timeout ? ka_timeout * 1000, otherwise
* REQUEST_TIMEOUT * 1000.
* -1 means forever
*/
pending_requests = 0;
if (pfd_len) {
timeout = (request_ready ? 0 :
(request_block ? default_timeout : -1));
if (poll(pfds, pfd_len, timeout) == -1) {
if (errno == EINTR)
continue; /* while(1) */
}
if (!sigterm_flag && watch_server) {
/* */
if (pfds[server_pfd].revents &
(POLLNVAL|POLLERR)) {
/* problem with the server socket, unexpected */
log_error("server pfd revent contains "
"POLLNVAL or POLLERR! Exiting.");
exit(1);
} else if (pfds[server_pfd].revents & BOA_READ) {
pending_requests = 1;
}
}
time(¤t_time);
/* if pfd_len is 0, we didn't poll, so the current time
* should be up-to-date, and we *won't* be accepting anyway
*/
}
/* go through blocked and unblock them if possible */
/* also resets pfd_len and pfd to known blocked */
pfd_len = 0;
if (request_block) {
update_blocked(pfd1[other]);
}
/* swap pfd */
pfds = pfd1[other];
temp = other;
other = which;
which = temp;
/* process any active requests */
process_requests(server_s);
}
}
/* process client requests */
int
srv_loop( const char* ipaddr, int port,
const char* mcast_addr )
{
int rc, maxfd, err, nrdy, i;
fd_set rset;
struct timeval tmout, idle_tmout, *ptmout = NULL;
tmfd_t *asock = NULL;
size_t n = 0, nasock = 0, max_nasock = LQ_BACKLOG;
sigset_t oset, bset;
static const long IDLE_TMOUT_SEC = 30;
assert( (port > 0) && mcast_addr && ipaddr );
(void)tmfprintf( g_flog, "Server is starting up, max clients = [%u]\n",
g_uopt.max_clients );
asock = calloc (max_nasock, sizeof(*asock));
if (!asock) {
mperror (g_flog, ENOMEM, "%s: calloc", __func__);
return ERR_INTERNAL;
}
init_server_ctx( &g_srv, g_uopt.max_clients,
(ipaddr[0] ? ipaddr : "0.0.0.0") , (uint16_t)port, mcast_addr );
g_srv.rcv_tmout = (u_short)g_uopt.rcv_tmout;
g_srv.snd_tmout = RLY_SOCK_TIMEOUT;
/* NB: server socket is non-blocking! */
if( 0 != (rc = setup_listener( ipaddr, port, &g_srv.lsockfd,
g_uopt.lq_backlog )) ) {
return rc;
}
sigemptyset (&bset);
sigaddset (&bset, SIGINT);
sigaddset (&bset, SIGQUIT);
sigaddset (&bset, SIGCHLD);
sigaddset (&bset, SIGTERM);
(void) sigprocmask (SIG_BLOCK, &bset, &oset);
TRACE( (void)tmfprintf( g_flog, "Entering server loop [%s]\n",
SLOOP_TAG) );
while (1) {
FD_ZERO( &rset );
FD_SET( g_srv.lsockfd, &rset );
FD_SET( g_srv.cpipe[0], &rset );
maxfd = (g_srv.lsockfd > g_srv.cpipe[0] ) ? g_srv.lsockfd : g_srv.cpipe[0];
for (i = 0; (size_t)i < nasock; ++i) {
assert (asock[i].fd >= 0);
FD_SET (asock[i].fd, &rset);
if (asock[i].fd > maxfd) maxfd = asock[i].fd;
}
/* if there are accepted sockets - apply specified time-out
*/
tmout.tv_sec = g_uopt.ssel_tmout;
tmout.tv_usec = 0;
idle_tmout.tv_sec = IDLE_TMOUT_SEC;
idle_tmout.tv_usec = 0;
/* enforce *idle* select(2) timeout to alleviate signal contention */
ptmout = ((nasock > 0) && (g_uopt.ssel_tmout > 0)) ? &tmout : &idle_tmout;
TRACE( (void)tmfprintf( g_flog, "Waiting for input from [%ld] fd's, "
"%s timeout\n", (long)(2 + nasock), (ptmout ? "with" : "NO")));
if (ptmout && ptmout->tv_sec) {
TRACE( (void)tmfprintf (g_flog, "select() timeout set to "
"[%ld] seconds\n", ptmout->tv_sec) );
}
(void) sigprocmask (SIG_UNBLOCK, &bset, NULL);
if( must_quit() ) {
TRACE( (void)tmfputs( "Must quit now\n", g_flog ) );
rc = 0; break;
}
nrdy = select (maxfd + 1, &rset, NULL, NULL, ptmout);
err = errno;
(void) sigprocmask (SIG_BLOCK, &bset, NULL);
if( must_quit() ) {
TRACE( (void)tmfputs( "Must quit now\n", g_flog ) );
rc = 0; break;
}
wait_terminated( &g_srv );
if( nrdy < 0 ) {
if (EINTR == err) {
TRACE( (void)tmfputs ("INTERRUPTED, yet "
"will continue.\n", g_flog) );
rc = 0; continue;
}
mperror( g_flog, err, "%s: select", __func__ );
break;
}
TRACE( (void)tmfprintf (g_flog, "Got %ld requests\n", (long)nrdy) );
if (0 == nrdy) { /* time-out */
tmout_requests (asock, &nasock);
rc = 0; continue;
}
if( FD_ISSET(g_srv.cpipe[0], &rset) ) {
(void) tpstat_read( &g_srv );
if (--nrdy <= 0) continue;
}
if ((0 < nasock) &&
(0 < (nrdy - (FD_ISSET(g_srv.lsockfd, &rset) ? 1 : 0)))) {
process_requests (asock, &nasock, &rset, &g_srv);
/* n now contains # (yet) unprocessed accepted sockets */
}
if (FD_ISSET(g_srv.lsockfd, &rset)) {
if (nasock >= max_nasock) {
(void) tmfprintf (g_flog, "Cannot accept sockets beyond "
"the limit [%ld/%ld], skipping\n",
(long)nasock, (long)max_nasock);
}
else {
n = max_nasock - nasock; /* append asock */
accept_requests (g_srv.lsockfd, &(asock[nasock]), &n);
nasock += n;
}
}
} /* server loop */
TRACE( (void)tmfprintf( g_flog, "Exited server loop [%s]\n", SLOOP_TAG) );
for (i = 0; (size_t)i < nasock; ++i) {
if (asock[i].fd > 0) (void) close (asock[i].fd);
}
free (asock);
/* receive additional (blocked signals) */
(void) sigprocmask (SIG_SETMASK, &oset, NULL);
wait_terminated( &g_srv );
terminate_all_clients( &g_srv );
wait_all( &g_srv );
if (0 != close( g_srv.lsockfd )) {
mperror (g_flog, errno, "server socket close");
}
free_server_ctx( &g_srv );
(void)tmfprintf( g_flog, "Server exits with rc=[%d]\n", rc );
return rc;
}
void
set_up_server(char hostname[], char port[], int af)
{
struct addrinfo hints;
struct addrinfo *local_res;
struct addrinfo *local_res_temp;
struct sockaddr_storage peeraddr;
netperf_socklen_t peeraddr_len = sizeof(peeraddr);
SOCKET server_control;
int on=1;
int count;
int error;
int not_listening;
#if !defined(WIN32) && !defined(MPE) && !defined(__VMS)
FILE *rd_null_fp; /* Used to redirect from "/dev/null". */
FILE *wr_null_fp; /* Used to redirect to "/dev/null". */
#endif /* !WIN32 !MPE !__VMS */
if (debug) {
fprintf(stderr,
"set_up_server called with host '%s' port '%s' remfam %d\n",
hostname,
port,
af);
fflush(stderr);
}
memset(&hints,0,sizeof(hints));
hints.ai_family = af;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_flags = AI_PASSIVE;
count = 0;
do {
error = getaddrinfo((char *)hostname,
(char *)port,
&hints,
&local_res);
count += 1;
if (error == EAI_AGAIN) {
if (debug) {
fprintf(stderr,"Sleeping on getaddrinfo EAI_AGAIN\n");
fflush(stderr);
}
sleep(1);
}
} while ((error == EAI_AGAIN) && (count <= 5));
if (error) {
fprintf(stderr,
"set_up_server: could not resolve remote '%s' port '%s' af %d",
hostname,
port,
af);
fprintf(stderr,"\n\tgetaddrinfo returned %d %s\n",
error,
gai_strerror(error));
exit(-1);
}
if (debug) {
dump_addrinfo(stderr, local_res, hostname, port, af);
}
not_listening = 1;
local_res_temp = local_res;
while((local_res_temp != NULL) && (not_listening)) {
fprintf(stderr,
"Starting netserver at port %s\n",
port);
server_control = socket(local_res_temp->ai_family,SOCK_STREAM,0);
if (server_control == INVALID_SOCKET) {
perror("set_up_server could not allocate a socket");
exit(-1);
}
/* happiness and joy, keep going */
if (setsockopt(server_control,
SOL_SOCKET,
SO_REUSEADDR,
(char *)&on ,
sizeof(on)) == SOCKET_ERROR) {
if (debug) {
perror("warning: set_up_server could not set SO_REUSEADDR");
}
}
/* still happy and joyful */
if ((bind (server_control,
local_res_temp->ai_addr,
local_res_temp->ai_addrlen) != SOCKET_ERROR) &&
(listen (server_control,5) != SOCKET_ERROR)) {
not_listening = 0;
break;
}
else {
/* we consider a bind() or listen() failure a transient and try
the next address */
if (debug) {
perror("warning: set_up_server failed a bind or listen call\n");
}
local_res_temp = local_res_temp->ai_next;
continue;
}
}
if (not_listening) {
fprintf(stderr,
"set_up_server could not establish a listen endpoint for %s port %s with family %s\n",
host_name,
port,
inet_ftos(af));
fflush(stderr);
exit(-1);
}
else {
printf("Starting netserver at hostname %s port %s and family %s\n",
hostname,
port,
inet_ftos(af));
}
/*
setpgrp();
*/
#if !defined(WIN32) && !defined(MPE) && !defined(__VMS)
/* Flush the standard I/O file descriptors before forking. */
fflush (stdin);
fflush (stdout);
fflush (stderr);
#if defined(HAVE_FORK)
switch (fork())
#else
switch (vfork())
#endif
{
case -1:
perror("netperf server error");
exit(1);
case 0:
/* Redirect stdin from "/dev/null". */
rd_null_fp = fopen ("/dev/null", "r");
if (rd_null_fp == NULL)
{
perror ("netserver: opening for reading: /dev/null");
exit (1);
}
if (close (STDIN_FILENO) == -1)
{
perror ("netserver: closing stdin file descriptor");
exit (1);
}
if (dup (fileno (rd_null_fp)) == -1)
{
perror ("netserver: duplicate /dev/null read file descr. to stdin");
exit (1);
}
/* Redirect stdout to the debug write file descriptor. */
if (close (STDOUT_FILENO) == -1)
{
perror ("netserver: closing stdout file descriptor");
exit (1);
}
if (dup (fileno (where)) == -1)
{
perror ("netserver: duplicate the debug write file descr. to stdout");
exit (1);
}
/* Redirect stderr to "/dev/null". */
wr_null_fp = fopen ("/dev/null", "w");
if (wr_null_fp == NULL)
{
perror ("netserver: opening for writing: /dev/null");
exit (1);
}
if (close (STDERR_FILENO) == -1)
{
perror ("netserver: closing stderr file descriptor");
exit (1);
}
if (dup (fileno (wr_null_fp)) == -1)
{
perror ("netserver: dupicate /dev/null write file descr. to stderr");
exit (1);
}
#ifndef NO_SETSID
setsid();
#else
setpgrp();
#endif /* NO_SETSID */
/* some OS's have SIGCLD defined as SIGCHLD */
#ifndef SIGCLD
#define SIGCLD SIGCHLD
#endif /* SIGCLD */
signal(SIGCLD, SIG_IGN);
#endif /* !WIN32 !MPE !__VMS */
for (;;)
{
if ((server_sock=accept(server_control,
(struct sockaddr *)&peeraddr,
&peeraddr_len)) == INVALID_SOCKET)
{
printf("server_control: accept failed errno %d\n",errno);
exit(1);
}
#if defined(MPE) || defined(__VMS)
/*
* Since we cannot fork this process , we cant fire any threads
* as they all share the same global data . So we better allow
* one request at at time
*/
process_requests() ;
#elif WIN32
{
BOOL b;
char cmdline[80];
PROCESS_INFORMATION pi;
STARTUPINFO si;
int i;
memset(&si, 0 , sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
/* Pass the server_sock as stdin for the new process. */
/* Hopefully this will continue to be created with the OBJ_INHERIT attribute. */
si.hStdInput = (HANDLE)server_sock;
si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
si.dwFlags = STARTF_USESTDHANDLES;
/* Build cmdline for child process */
strcpy(cmdline, program);
if (verbosity > 1) {
snprintf(&cmdline[strlen(cmdline)], sizeof(cmdline) - strlen(cmdline), " -v %d", verbosity);
}
for (i=0; i < debug; i++) {
snprintf(&cmdline[strlen(cmdline)], sizeof(cmdline) - strlen(cmdline), " -d");
}
snprintf(&cmdline[strlen(cmdline)], sizeof(cmdline) - strlen(cmdline), " -I %x", (int)(UINT_PTR)server_sock);
snprintf(&cmdline[strlen(cmdline)], sizeof(cmdline) - strlen(cmdline), " -i %x", (int)(UINT_PTR)server_control);
snprintf(&cmdline[strlen(cmdline)], sizeof(cmdline) - strlen(cmdline), " -i %x", (int)(UINT_PTR)where);
b = CreateProcess(NULL, /* Application Name */
cmdline,
NULL, /* Process security attributes */
NULL, /* Thread security attributes */
TRUE, /* Inherit handles */
0, /* Creation flags PROCESS_QUERY_INFORMATION, */
NULL, /* Enviornment */
NULL, /* Current directory */
&si, /* StartupInfo */
&pi);
if (!b)
{
perror("CreateProcessfailure: ");
exit(1);
}
/* We don't need the thread or process handles any more; let them */
/* go away on their own timeframe. */
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
/* And close the server_sock since the child will own it. */
close(server_sock);
}
#else
signal(SIGCLD, SIG_IGN);
#if defined(HAVE_FORK)
switch (fork())
#else
switch (vfork())
#endif
{
case -1:
/* something went wrong */
exit(1);
case 0:
/* we are the child process */
close(server_control);
process_requests();
exit(0);
break;
default:
/* we are the parent process */
close(server_sock);
/* we should try to "reap" some of our children. on some */
/* systems they are being left as defunct processes. we */
/* will call waitpid, looking for any child process, */
/* with the WNOHANG feature. when waitpid return a zero, */
/* we have reaped all the children there are to reap at */
/* the moment, so it is time to move on. raj 12/94 */
#ifndef DONT_WAIT
#ifdef NO_SETSID
/* Only call "waitpid()" if "setsid()" is not used. */
while(waitpid(-1, NULL, WNOHANG) > 0) { }
#endif /* NO_SETSID */
#endif /* DONT_WAIT */
break;
}
#endif /* !WIN32 !MPE !__VMS */
} /*for*/
#if !defined(WIN32) && !defined(MPE) && !defined(__VMS)
break; /*case 0*/
default:
exit (0);
}
#endif /* !WIN32 !MPE !__VMS */
}
void select_loop(int server_s)
{
FD_ZERO(&block_read_fdset);
FD_ZERO(&block_write_fdset);
/* set server_s and req_timeout */
req_timeout.tv_sec = (ka_timeout ? ka_timeout : REQUEST_TIMEOUT);
req_timeout.tv_usec = 0l; /* reset timeout */
/* preset max_fd */
max_fd = -1;
while (1) {
if (sighup_flag)
sighup_run();
if (sigchld_flag)
sigchld_run();
if (sigalrm_flag)
sigalrm_run();
if (sigterm_flag) {
if (sigterm_flag == 1)
sigterm_stage1_run(server_s);
if (sigterm_flag == 2 && !request_ready && !request_block) {
sigterm_stage2_run();
}
}
/* reset max_fd */
max_fd = -1;
if (request_block)
/* move selected req's from request_block to request_ready */
fdset_update();
/* any blocked req's move from request_ready to request_block */
process_requests(server_s);
if (!sigterm_flag && total_connections < (max_connections - 10)) {
BOA_FD_SET(server_s, &block_read_fdset); /* server always set */
#ifdef SERVER_SSL
if (do_sock < 2)
BOA_FD_SET(server_ssl, &block_read_fdset); /* server always set */
#endif
}
req_timeout.tv_sec = (request_ready ? 0 :
(ka_timeout ? ka_timeout : REQUEST_TIMEOUT));
req_timeout.tv_usec = 0l; /* reset timeout */
if (select(max_fd + 1, &block_read_fdset,
&block_write_fdset, NULL,
(request_ready || request_block ? &req_timeout : NULL)) == -1) {
/* what is the appropriate thing to do here on EBADF */
if (errno == EINTR)
continue; /* while(1) */
else if (errno != EBADF) {
DIE("select");
}
}
time(¤t_time);
if (FD_ISSET(server_s, &block_read_fdset))
pending_requests = 1;
}
}
void loop(int server_s)
{
FD_ZERO(BOA_READ);
FD_ZERO(BOA_WRITE);
max_fd = -1;
while (1) {
/* handle signals here */
if (sighup_flag)
sighup_run();
if (sigchld_flag)
sigchld_run();
if (sigalrm_flag)
sigalrm_run();
if (sigterm_flag) {
/* sigterm_flag:
* 1. caught, unprocessed.
* 2. caught, stage 1 processed
*/
if (sigterm_flag == 1) {
sigterm_stage1_run();
BOA_FD_CLR(req, server_s, BOA_READ);
close(server_s);
/* make sure the server isn't in the block list */
server_s = -1;
}
if (sigterm_flag == 2 && !request_ready && !request_block) {
sigterm_stage2_run(); /* terminal */
}
} else {
if (total_connections > max_connections) {
/* FIXME: for poll we don't subtract 20. why? */
BOA_FD_CLR(req, server_s, BOA_READ);
} else {
BOA_FD_SET(req, server_s, BOA_READ); /* server always set */
}
}
pending_requests = 0;
/* max_fd is > 0 when something is blocked */
if (max_fd) {
struct timeval req_timeout; /* timeval for select */
req_timeout.tv_sec = (request_ready ? 0 : default_timeout);
req_timeout.tv_usec = 0l; /* reset timeout */
if (select(max_fd + 1, BOA_READ,
BOA_WRITE, NULL,
(request_ready || request_block ?
&req_timeout : NULL)) == -1) {
/* what is the appropriate thing to do here on EBADF */
if (errno == EINTR)
continue; /* while(1) */
else if (errno != EBADF) {
DIE("select");
}
}
/* FIXME: optimize for when select returns 0 (timeout).
* Thus avoiding many operations in fdset_update
* and others.
*/
if (!sigterm_flag && FD_ISSET(server_s, BOA_READ)) {
pending_requests = 1;
}
time(¤t_time); /* for "new" requests if we've been in
* select too long */
/* if we skip this section (for example, if max_fd == 0),
* then we aren't listening anyway, so we can't accept
* new conns. Don't worry about it.
*/
}
/* reset max_fd */
max_fd = -1;
if (request_block) {
/* move selected req's from request_block to request_ready */
fdset_update();
}
/* any blocked req's move from request_ready to request_block */
if (pending_requests || request_ready) {
process_requests(server_s);
}
}
}
/**
* Process response with a hostname for a DNS lookup.
*
* @param cls our "struct GNUNET_RESOLVER_RequestHandle" context
* @param msg message with the hostname, NULL on error
*/
static void
handle_response (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_RESOLVER_RequestHandle *rh = cls;
uint16_t size;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving response from DNS service\n");
if (msg == NULL)
{
char buf[INET6_ADDRSTRLEN];
if (NULL != rh->name_callback)
LOG (GNUNET_ERROR_TYPE_INFO,
_("Timeout trying to resolve IP address `%s'.\n"),
inet_ntop (rh->af, (const void *) &rh[1], buf, sizeof(buf)));
else
LOG (GNUNET_ERROR_TYPE_INFO,
_("Timeout trying to resolve hostname `%s'.\n"),
(const char *) &rh[1]);
/* check if request was canceled */
if (rh->was_transmitted != GNUNET_SYSERR)
{
if (NULL != rh->name_callback)
{
/* no reverse lookup was successful, return ip as string */
if (rh->received_response == GNUNET_NO)
rh->name_callback (rh->cls,
no_resolve (rh->af,
&rh[1],
rh->data_len));
/* at least one reverse lookup was successful */
else
rh->name_callback (rh->cls, NULL);
}
if (NULL != rh->addr_callback)
rh->addr_callback (rh->cls, NULL, 0);
}
GNUNET_CONTAINER_DLL_remove (req_head, req_tail, rh);
GNUNET_free (rh);
GNUNET_CLIENT_disconnect (client);
client = NULL;
reconnect ();
return;
}
if (GNUNET_MESSAGE_TYPE_RESOLVER_RESPONSE != ntohs (msg->type))
{
GNUNET_break (0);
GNUNET_CLIENT_disconnect (client);
client = NULL;
reconnect ();
return;
}
size = ntohs (msg->size);
/* message contains not data, just header */
if (size == sizeof (struct GNUNET_MessageHeader))
{
/* check if request was canceled */
if (rh->was_transmitted != GNUNET_SYSERR)
{
if (NULL != rh->name_callback)
rh->name_callback (rh->cls, NULL);
if (NULL != rh->addr_callback)
rh->addr_callback (rh->cls, NULL, 0);
}
GNUNET_CONTAINER_DLL_remove (req_head, req_tail, rh);
GNUNET_free (rh);
process_requests ();
return;
}
/* return reverse lookup results to caller */
if (NULL != rh->name_callback)
{
const char *hostname;
hostname = (const char *) &msg[1];
if (hostname[size - sizeof (struct GNUNET_MessageHeader) - 1] != '\0')
{
GNUNET_break (0);
if (rh->was_transmitted != GNUNET_SYSERR)
rh->name_callback (rh->cls, NULL);
GNUNET_CONTAINER_DLL_remove (req_head, req_tail, rh);
GNUNET_free (rh);
GNUNET_CLIENT_disconnect (client);
client = NULL;
reconnect ();
return;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Resolver returns `%s' for IP `%s'.\n",
hostname, GNUNET_a2s ((const void *) &rh[1], rh->data_len));
if (rh->was_transmitted != GNUNET_SYSERR)
rh->name_callback (rh->cls, hostname);
rh->received_response = GNUNET_YES;
GNUNET_CLIENT_receive (client, &handle_response, rh,
GNUNET_TIME_absolute_get_remaining (rh->timeout));
}
/* return lookup results to caller */
if (NULL != rh->addr_callback)
{
struct sockaddr_in v4;
struct sockaddr_in6 v6;
const struct sockaddr *sa;
socklen_t salen;
const void *ip;
size_t ip_len;
ip = &msg[1];
ip_len = size - sizeof (struct GNUNET_MessageHeader);
if (ip_len == sizeof (struct in_addr))
{
memset (&v4, 0, sizeof (v4));
v4.sin_family = AF_INET;
v4.sin_addr = *(struct in_addr*) ip;
#if HAVE_SOCKADDR_IN_SIN_LEN
v4.sin_len = sizeof (v4);
#endif
salen = sizeof (v4);
sa = (const struct sockaddr *) &v4;
}
else if (ip_len == sizeof (struct in6_addr))
{
memset (&v6, 0, sizeof (v6));
v6.sin6_family = AF_INET6;
v6.sin6_addr = *(struct in6_addr*) ip;
#if HAVE_SOCKADDR_IN_SIN_LEN
v6.sin6_len = sizeof (v6);
#endif
salen = sizeof (v6);
sa = (const struct sockaddr *) &v6;
}
else
{
GNUNET_break (0);
if (rh->was_transmitted != GNUNET_SYSERR)
rh->addr_callback (rh->cls, NULL, 0);
GNUNET_CONTAINER_DLL_remove (req_head, req_tail, rh);
GNUNET_free (rh);
GNUNET_CLIENT_disconnect (client);
client = NULL;
reconnect ();
return;
}
rh->addr_callback (rh->cls, sa, salen);
GNUNET_CLIENT_receive (client, &handle_response, rh,
GNUNET_TIME_absolute_get_remaining (rh->timeout));
}
}
