#include <errno.h>
#include <stdarg.h>
#include <grp.h>
+#define SHOW_ME_VAPPEND_PRINTF
#include <libcitadel.h>
#include "citadel.h"
#include "server.h"
void vCtdlLogPrintf(enum LogLevel loglevel, const char *format, va_list arg_ptr)
{
- char buf[SIZ], buf2[SIZ];
if (enable_syslog) {
vsyslog((syslog_facility | loglevel), format, arg_ptr);
struct timeval tv;
struct tm tim;
time_t unixtime;
- struct CitContext *CCC = CC;
+ StrBuf *lBuf;
+ CitContext *CCC = CC;
+ ThreadTSD *cTSD = CTP;
+ CtdlThreadNode *node = NULL;
+ long lwpid = 0;
+
+ if (cTSD != NULL)
+ node = cTSD->self;
+ if ((node != NULL) && (node->reltid != 0))
+ {
+ lwpid = node->pid + node->reltid;
+ }
gettimeofday(&tv, NULL);
/* Promote to time_t; types differ on some OSes (like darwin) */
unixtime = tv.tv_sec;
localtime_r(&unixtime, &tim);
- if ((CCC != NULL) && (CCC->cs_pid != 0)) {
- sprintf(buf,
- "%04d/%02d/%02d %2d:%02d:%02d.%06ld [%3d] ",
- tim.tm_year + 1900, tim.tm_mon + 1,
- tim.tm_mday, tim.tm_hour, tim.tm_min,
- tim.tm_sec, (long)tv.tv_usec,
- CCC->cs_pid);
- } else {
- sprintf(buf,
- "%04d/%02d/%02d %2d:%02d:%02d.%06ld ",
- tim.tm_year + 1900, tim.tm_mon + 1,
- tim.tm_mday, tim.tm_hour, tim.tm_min,
- tim.tm_sec, (long)tv.tv_usec);
+
+ if (CCC != NULL)
+ lBuf = CCC->lBuf;
+ else
+ lBuf = NewStrBuf();
+ if (lBuf == NULL) {
+ char buf[SIZ], buf2[SIZ];
+
+ if ((CCC != NULL) && (CCC->cs_pid != 0)) {
+ sprintf(buf,
+ "%04d/%02d/%02d %2d:%02d:%02d.%06ld xx [%3d] ",
+ tim.tm_year + 1900, tim.tm_mon + 1,
+ tim.tm_mday, tim.tm_hour, tim.tm_min,
+ tim.tm_sec, (long)tv.tv_usec,
+ CCC->cs_pid);
+ } else {
+ sprintf(buf,
+ "%04d/%02d/%02d %2d:%02d:%02d.%06ld xx ",
+ tim.tm_year + 1900, tim.tm_mon + 1,
+ tim.tm_mday, tim.tm_hour, tim.tm_min,
+ tim.tm_sec, (long)tv.tv_usec);
+ }
+ vsnprintf(buf2, SIZ, format, arg_ptr);
+
+ fprintf(stderr, "%s%s", buf, buf2);
}
- vsnprintf(buf2, SIZ, format, arg_ptr);
+ else {
+ StrBufPrintf(lBuf,
+ "%04d/%02d/%02d %2d:%02d:%02d.%06ld ",
+ tim.tm_year + 1900, tim.tm_mon + 1,
+ tim.tm_mday, tim.tm_hour, tim.tm_min,
+ tim.tm_sec, (long)tv.tv_usec);
- fprintf(stderr, "%s%s", buf, buf2);
+
+ if (lwpid != 0)
+ StrBufAppendPrintf(lBuf,
+ "[LWP:%d] ",
+ lwpid);
+
+ if (CCC != NULL) {
+ if (CCC->cs_pid != 0)
+ StrBufAppendPrintf(lBuf,
+ "[%3d] ",
+ CCC->cs_pid);
+ else if (CCC->user.usernum != 0)
+ StrBufAppendPrintf(lBuf,
+ "[:%d] ",
+ CCC->user.usernum);
+ }
+ StrBufVAppendPrintf(lBuf, format, arg_ptr);
+ fwrite(ChrPtr(lBuf), 1, StrLength(lBuf), stderr);
+ }
fflush(stderr);
+ if (CCC == NULL) FreeStrBuf(&lBuf);
+
}
}
volatile int running_as_daemon = 0;
static RETSIGTYPE signal_cleanup(int signum) {
-#ifdef THREADS_USESIGNALS
+
if (CT)
CT->signal = signum;
else
-#endif
{
CtdlLogPrintf(CTDL_DEBUG, "Caught signal %d; shutting down.\n", signum);
exit_signal = signum;
}
}
+static RETSIGTYPE signal_exit(int signum) {
+ exit(1);
+}
+
/*
* call signal_cleanup() to gracefully shut down the server.
*/
sigemptyset(&set);
- sigaddset(&set, SIGINT);
- sigaddset(&set, SIGQUIT);
+ sigaddset(&set, SIGINT); // intr = shutdown
+ // sigaddset(&set, SIGQUIT); // quit = force quit
sigaddset(&set, SIGHUP);
sigaddset(&set, SIGTERM);
- // sigaddset(&set, SIGSEGV); commented out because
- // sigaddset(&set, SIGILL); we want core dumps
+ // sigaddset(&set, SIGSEGV); // we want core dumps
+ // sigaddset(&set, SIGILL); // we want core dumps
// sigaddset(&set, SIGBUS);
sigprocmask(SIG_UNBLOCK, &set, NULL);
- signal(SIGINT, signal_cleanup);
- signal(SIGQUIT, signal_cleanup);
+ signal(SIGINT, signal_cleanup); // intr = shutdown
+ // signal(SIGQUIT, signal_cleanup); // quit = force quit
signal(SIGHUP, signal_cleanup);
signal(SIGTERM, signal_cleanup);
- // signal(SIGSEGV, signal_cleanup); commented out because
- // signal(SIGILL, signal_cleanup); we want core dumps
+ signal(SIGUSR2, signal_exit);
+ // signal(SIGSEGV, signal_cleanup); // we want coredumps
+ // signal(SIGILL, signal_cleanup); // we want core dumps
// signal(SIGBUS, signal_cleanup);
/*
#endif
}
+/*
+static void flush_client_inbuf(void)
+{
+ CitContext *CCC=CC;
+
+ FlushStrBuf(CCC->ReadBuf);
+ CCC->Pos = NULL;
+}
+*/
/*
* client_write() ... Send binary data to the client.
*/
-int client_write(char *buf, int nbytes)
+int client_write(const char *buf, int nbytes)
{
int bytes_written = 0;
int retval;
int old_buffer_len = 0;
#endif
fd_set wset;
- t_context *Ctx;
+ CitContext *Ctx;
int fdflags;
+ if (nbytes < 1) return(0);
+
+// flush_client_inbuf();
Ctx = CC;
if (Ctx->redirect_buffer != NULL) {
- if ((Ctx->redirect_len + nbytes + 2) >= Ctx->redirect_alloc) {
- Ctx->redirect_alloc = (Ctx->redirect_alloc * 2) + nbytes;
- Ctx->redirect_buffer = realloc(Ctx->redirect_buffer,
- Ctx->redirect_alloc);
- }
- memcpy(&Ctx->redirect_buffer[Ctx->redirect_len], buf, nbytes);
- Ctx->redirect_len += nbytes;
- Ctx->redirect_buffer[Ctx->redirect_len] = 0;
+ StrBufAppendBufPlain(Ctx->redirect_buffer,
+ buf, nbytes, 0);
return 0;
}
return 0;
}
#endif
+ if (Ctx->client_socket == -1) return -1;
fdflags = fcntl(Ctx->client_socket, F_GETFL);
- while (bytes_written < nbytes) {
+ while ((bytes_written < nbytes) && (Ctx->client_socket != -1)){
if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
FD_ZERO(&wset);
FD_SET(Ctx->client_socket, &wset);
if (select(1, NULL, &wset, NULL, NULL) == -1) {
- CtdlLogPrintf(CTDL_ERR,
- "client_write(%d bytes) select failed: %s (%d)\n",
- nbytes - bytes_written,
- strerror(errno), errno);
- cit_backtrace();
- Ctx->kill_me = 1;
- return -1;
+ if (errno == EINTR)
+ {
+ CtdlLogPrintf(CTDL_DEBUG, "client_write(%d bytes) select() interrupted.\n", nbytes-bytes_written);
+ if (CtdlThreadCheckStop()) {
+ CC->kill_me = 1;
+ return (-1);
+ } else {
+ /* can't trust fd's and stuff so we need to re-create them */
+ continue;
+ }
+ } else {
+ CtdlLogPrintf(CTDL_ERR,
+ "client_write(%d bytes) select failed: %s (%d)\n",
+ nbytes - bytes_written,
+ strerror(errno), errno);
+ cit_backtrace();
+ Ctx->kill_me = 1;
+ return -1;
+ }
}
}
return 0;
}
+void cputbuf(const StrBuf *Buf) {
+ client_write(ChrPtr(Buf), StrLength(Buf));
+}
+
/*
* cprintf() Send formatted printable data to the client.
/*
* Read data from the client socket.
- * Return values are:
- * 1 Requested number of bytes has been read.
- * 0 Request timed out.
- * -1 The socket is broken.
- * If the socket breaks, the session will be terminated.
+ *
+ * sock socket fd to read from
+ * buf buffer to read into
+ * bytes number of bytes to read
+ * timeout Number of seconds to wait before timing out
+ *
+ * Possible return values:
+ * 1 Requested number of bytes has been read.
+ * 0 Request timed out.
+ * -1 Connection is broken, or other error.
*/
-int client_read_to(char *buf, int bytes, int timeout)
+int client_read_blob(StrBuf *Target, int bytes, int timeout)
{
- int len,rlen;
- fd_set rfds;
- int fd;
- struct timeval tv;
- int retval;
+ CitContext *CCC=CC;
+ const char *Error;
+ int retval = 0;
#ifdef HAVE_OPENSSL
- if (CC->redirect_ssl) {
- return (client_read_ssl(buf, bytes, timeout));
+ if (CCC->redirect_ssl) {
+ retval = client_read_sslblob(Target, bytes, timeout);
+ if (retval < 0) {
+ CtdlLogPrintf(CTDL_CRIT,
+ "%s failed\n",
+ __FUNCTION__);
+ }
}
+ else
#endif
- len = 0;
- fd = CC->client_socket;
- while(len<bytes) {
- FD_ZERO(&rfds);
- FD_SET(fd, &rfds);
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
-
- retval = select( (fd)+1,
- &rfds, NULL, NULL, &tv);
- if (retval < 0)
+ {
+ retval = StrBufReadBLOBBuffered(Target,
+ CCC->ReadBuf,
+ &CCC->Pos,
+ &CCC->client_socket,
+ 1,
+ bytes,
+ O_TERM,
+ &Error);
+ if (retval < 0) {
+ CtdlLogPrintf(CTDL_CRIT,
+ "%s failed: %s\n",
+ __FUNCTION__,
+ Error);
+ return retval;
+ }
+ else
{
- if (errno == EINTR)
+#ifdef BIGBAD_IODBG
+ int rv = 0;
+ char fn [SIZ];
+ FILE *fd;
+
+ snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+
+ fd = fopen(fn, "a+");
+ fprintf(fd, "Read: BufSize: %d BufContent: [",
+ StrLength(Target));
+ rv = fwrite(ChrPtr(Target), StrLength(Target), 1, fd);
+ fprintf(fd, "]\n");
+
+
+ fclose(fd);
+#endif
+
+ }
+ }
+ return retval;
+}
+
+
+/*
+ * to make client_read_random_blob() more efficient, increase buffer size.
+ * just use in greeting function, else your buffer may be flushed
+ */
+void client_set_inbound_buf(long N)
+{
+ FlushStrBuf(CC->ReadBuf);
+ ReAdjustEmptyBuf(CC->ReadBuf, N * SIZ, N * SIZ);
+}
+
+int client_read_random_blob(StrBuf *Target, int timeout)
+{
+ CitContext *CCC=CC;
+ int rc;
+
+ rc = client_read_blob(Target, 1, timeout);
+ if (rc > 0)
+ {
+ long len;
+ const char *pch;
+
+ len = StrLength(CCC->ReadBuf);
+ pch = ChrPtr(CCC->ReadBuf);
+
+ if (len > 0)
+ {
+ if (CCC->Pos != NULL) {
+ len -= CCC->Pos - pch;
+ pch = CCC->Pos;
+ }
+ StrBufAppendBufPlain(Target, pch, len, 0);
+ FlushStrBuf(CCC->ReadBuf);
+ CCC->Pos = NULL;
+#ifdef BIGBAD_IODBG
{
- CtdlLogPrintf(CTDL_DEBUG, "Interrupted select().\n");
- CC->kill_me = 1;
- return (-1);
+ int rv = 0;
+ char fn [SIZ];
+ FILE *fd;
+
+ snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+
+ fd = fopen(fn, "a+");
+ fprintf(fd, "Read: BufSize: %d BufContent: [",
+ StrLength(Target));
+ rv = fwrite(ChrPtr(Target), StrLength(Target), 1, fd);
+ fprintf(fd, "]\n");
+
+
+ fclose(fd);
}
+#endif
+
+ return StrLength(Target);
}
+ return rc;
+ }
+ else
+ return rc;
+}
- if (FD_ISSET(fd, &rfds) == 0) {
- return(0);
- }
+int client_read_to(char *buf, int bytes, int timeout)
+{
+ CitContext *CCC=CC;
+ int rc;
- rlen = read(fd, &buf[len], bytes-len);
- if (rlen<1) {
- /* The socket has been disconnected! */
- CC->kill_me = 1;
- return(-1);
- }
- len = len + rlen;
+ rc = client_read_blob(CCC->MigrateBuf, bytes, timeout);
+ if (rc < 0)
+ {
+ *buf = '\0';
+ return rc;
}
- return(1);
+ else
+ {
+ memcpy(buf,
+ ChrPtr(CCC->MigrateBuf),
+ StrLength(CCC->MigrateBuf) + 1);
+ FlushStrBuf(CCC->MigrateBuf);
+ return rc;
+ }
+}
+
+
+int HaveMoreLinesWaiting(CitContext *CCC)
+{
+ if ((CCC->kill_me == 1) || (
+ (CCC->Pos == NULL) &&
+ (StrLength(CCC->ReadBuf) == 0) &&
+ (CCC->client_socket != -1)) )
+ return 0;
+ else
+ return 1;
}
+
/*
* Read data from the client socket with default timeout.
* (This is implemented in terms of client_read_to() and could be
return(client_read_to(buf, bytes, config.c_sleeping));
}
+int CtdlClientGetLine(StrBuf *Target)
+{
+ CitContext *CCC=CC;
+ const char *Error;
+ int rc;
+
+ FlushStrBuf(Target);
+#ifdef HAVE_OPENSSL
+ if (CCC->redirect_ssl) {
+#ifdef BIGBAD_IODBG
+ char fn [SIZ];
+ FILE *fd;
+ int len = 0;
+ int rlen = 0;
+ int nlen = 0;
+ int nrlen = 0;
+ const char *pch;
+
+ snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+
+ fd = fopen(fn, "a+");
+ pch = ChrPtr(CCC->ReadBuf);
+ len = StrLength(CCC->ReadBuf);
+ if (CCC->Pos != NULL)
+ rlen = CC->Pos - pch;
+ else
+ rlen = 0;
+
+/* fprintf(fd, "\n\n\nBufSize: %d BufPos: %d \nBufContent: [%s]\n\n_____________________\n",
+ len, rlen, pch);
+*/
+ fprintf(fd, "\n\n\nSSL1: BufSize: %d BufPos: %d \n_____________________\n",
+ len, rlen);
+#endif
+ rc = client_readline_sslbuffer(Target,
+ CCC->ReadBuf,
+ &CCC->Pos,
+ 1);
+#ifdef BIGBAD_IODBG
+ pch = ChrPtr(CCC->ReadBuf);
+ nlen = StrLength(CCC->ReadBuf);
+ if (CCC->Pos != NULL)
+ nrlen = CC->Pos - pch;
+ else
+ nrlen = 0;
+/*
+ fprintf(fd, "\n\n\nBufSize: was: %d is: %d BufPos: was: %d is: %d \nBufContent: [%s]\n\n_____________________\n",
+ len, nlen, rlen, nrlen, pch);
+*/
+ fprintf(fd, "\n\n\nSSL2: BufSize: was: %d is: %d BufPos: was: %d is: %d \n",
+ len, nlen, rlen, nrlen);
+
+ fprintf(fd, "SSL3: Read: BufSize: %d BufContent: [%s]\n\n*************\n",
+ StrLength(Target), ChrPtr(Target));
+ fclose(fd);
+
+ if (rc < 0)
+ CtdlLogPrintf(CTDL_CRIT,
+ "%s failed\n",
+ __FUNCTION__);
+#endif
+ return rc;
+ }
+ else
+#endif
+ {
+#ifdef BIGBAD_IODBG
+ char fn [SIZ];
+ FILE *fd;
+ int len, rlen, nlen, nrlen;
+ const char *pch;
+
+ snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+
+ fd = fopen(fn, "a+");
+ pch = ChrPtr(CCC->ReadBuf);
+ len = StrLength(CCC->ReadBuf);
+ if (CCC->Pos != NULL)
+ rlen = CC->Pos - pch;
+ else
+ rlen = 0;
+
+/* fprintf(fd, "\n\n\nBufSize: %d BufPos: %d \nBufContent: [%s]\n\n_____________________\n",
+ len, rlen, pch);
+*/
+ fprintf(fd, "\n\n\nBufSize: %d BufPos: %d \n_____________________\n",
+ len, rlen);
+#endif
+ rc = StrBufTCP_read_buffered_line_fast(Target,
+ CCC->ReadBuf,
+ &CCC->Pos,
+ &CCC->client_socket,
+ 5,
+ 1,
+ &Error);
+
+#ifdef BIGBAD_IODBG
+ pch = ChrPtr(CCC->ReadBuf);
+ nlen = StrLength(CCC->ReadBuf);
+ if (CCC->Pos != NULL)
+ nrlen = CC->Pos - pch;
+ else
+ nrlen = 0;
+/*
+ fprintf(fd, "\n\n\nBufSize: was: %d is: %d BufPos: was: %d is: %d \nBufContent: [%s]\n\n_____________________\n",
+ len, nlen, rlen, nrlen, pch);
+*/
+ fprintf(fd, "\n\n\nBufSize: was: %d is: %d BufPos: was: %d is: %d \n",
+ len, nlen, rlen, nrlen);
+
+ fprintf(fd, "Read: BufSize: %d BufContent: [%s]\n\n*************\n",
+ StrLength(Target), ChrPtr(Target));
+ fclose(fd);
+
+ if ((rc < 0) && (Error != NULL))
+ CtdlLogPrintf(CTDL_CRIT,
+ "%s failed: %s\n",
+ __FUNCTION__,
+ Error);
+#endif
+ return rc;
+ }
+}
+
/*
* client_getln() ... Get a LF-terminated line of text from the client.
int client_getln(char *buf, int bufsize)
{
int i, retval;
+ CitContext *CCC=CC;
+ const char *pCh;
- /* Read one character at a time.
- */
- for (i = 0;;i++) {
- retval = client_read(&buf[i], 1);
- if (retval != 1 || buf[i] == '\n' || i == (bufsize-1))
- break;
- }
+ retval = CtdlClientGetLine(CCC->MigrateBuf);
+ if (retval < 0)
+ return(retval >= 0);
- /* If we got a long line, discard characters until the newline.
- */
- if (i == (bufsize-1))
- while (buf[i] != '\n' && retval == 1)
- retval = client_read(&buf[i], 1);
+ i = StrLength(CCC->MigrateBuf);
+ pCh = ChrPtr(CCC->MigrateBuf);
/* Strip the trailing LF, and the trailing CR if present.
*/
- buf[i] = 0;
+ if (bufsize <= i)
+ i = bufsize - 1;
while ( (i > 0)
- && ( (buf[i - 1]==13)
- || ( buf[i - 1]==10)) ) {
+ && ( (pCh[i - 1]==13)
+ || ( pCh[i - 1]==10)) ) {
i--;
- buf[i] = 0;
}
- if (retval < 0) safestrncpy(&buf[i], "000", bufsize - i);
- return(retval);
+ memcpy(buf, pCh, i);
+ buf[i] = 0;
+
+ FlushStrBuf(CCC->MigrateBuf);
+ if (retval < 0) {
+ safestrncpy(&buf[i], "000", bufsize - i);
+ }
+ return(retval >= 0);
}
CtdlDestroyServiceHook();
CtdlDestroyRoomHooks();
#ifdef HAVE_BACKTRACE
- eCrash_Uninit();
+/// eCrash_Uninit();
#endif
}
* We don't just call close() because we don't want these fd's
* to be reused for other files.
*/
- chdir(ctdl_run_dir);
+ if (chdir(ctdl_run_dir) != 0)
+ CtdlLogPrintf(CTDL_EMERG,
+ "unable to change into directory [%s]: %s",
+ ctdl_run_dir, strerror(errno));
child = fork();
if (child != 0) {
setsid();
umask(0);
- freopen("/dev/null", "r", stdin);
- freopen("/dev/null", "w", stdout);
- freopen("/dev/null", "w", stderr);
+ if ((freopen("/dev/null", "r", stdin) != stdin) ||
+ (freopen("/dev/null", "w", stdout) != stdout) ||
+ (freopen("/dev/null", "w", stderr) != stderr))
+ CtdlLogPrintf(CTDL_EMERG,
+ "unable to reopen stdin/out/err %s",
+ strerror(errno));
+
do {
current_child = fork();
" For more information, please see:\n \n"
" http://citadel.org/doku.php/faq:mastering_your_os:gdb#how.do.i.make.my.system.produce.core-files"
"\n \n"
+
" If you have already done this, the core dump is likely to be found at %score.%d\n"
,
ctdl_run_dir, ForkedPid);
*/
void *worker_thread(void *arg) {
- int i;
int highest;
- struct CitContext *ptr;
- struct CitContext *bind_me = NULL;
+ CitContext *ptr;
+ CitContext *bind_me = NULL;
fd_set readfds;
int retval = 0;
- struct CitContext *con= NULL; /* Temporary context pointer */
- struct ServiceFunctionHook *serviceptr;
- int ssock; /* Descriptor for client socket */
struct timeval tv;
int force_purge = 0;
- int m;
while (!CtdlThreadCheckStop()) {
begin_critical_section(S_SESSION_TABLE);
for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
+ int client_socket;
+ client_socket = ptr->client_socket;
/* Dont select on dead sessions only truly idle ones */
- if ((ptr->state == CON_IDLE)) {
- FD_SET(ptr->client_socket, &readfds);
- if (ptr->client_socket > highest)
- highest = ptr->client_socket;
+ if ((ptr->state == CON_IDLE) &&
+ (CC->kill_me == 0) &&
+ (client_socket != -1))
+ {
+ FD_SET(client_socket, &readfds);
+ if (client_socket > highest)
+ highest = client_socket;
}
if ((bind_me == NULL) && (ptr->state == CON_READY)) {
bind_me = ptr;
ptr->state = CON_EXECUTING;
+ break;
+ }
+ if ((bind_me == NULL) && (ptr->state == CON_GREETING)) {
+ bind_me = ptr;
+ ptr->state = CON_STARTING;
+ break;
}
}
end_critical_section(S_SESSION_TABLE);
* ahead and get ready to select().
*/
+ if (!CtdlThreadCheckStop()) {
+ tv.tv_sec = 1; /* wake up every second if no input */
+ tv.tv_usec = 0;
+ retval = CtdlThreadSelect(highest + 1, &readfds, NULL, NULL, &tv);
+ }
+ else
+ return NULL;
+
+ /* Now figure out who made this select() unblock.
+ * First, check for an error or exit condition.
+ */
+ if (retval < 0) {
+ if (errno == EBADF) {
+ CtdlLogPrintf(CTDL_NOTICE, "select() failed: (%s)\n",
+ strerror(errno));
+ goto do_select;
+ }
+ if (errno != EINTR) {
+ CtdlLogPrintf(CTDL_EMERG, "Exiting (%s)\n", strerror(errno));
+ CtdlThreadStopAll();
+ continue;
+ } else {
+ CtdlLogPrintf(CTDL_DEBUG, "Interrupted CtdlThreadSelect.\n");
+ if (CtdlThreadCheckStop()) return(NULL);
+ goto do_select;
+ }
+ }
+ else if(retval == 0) {
+ if (CtdlThreadCheckStop()) return(NULL);
+ }
+
+ /* It must be a client socket. Find a context that has data
+ * waiting on its socket *and* is in the CON_IDLE state. Any
+ * active sockets other than our chosen one are marked as
+ * CON_READY so the next thread that comes around can just bind
+ * to one without having to select() again.
+ */
+ begin_critical_section(S_SESSION_TABLE);
+ for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
+ int checkfd = ptr->client_socket;
+ if ((checkfd != -1) && (ptr->state == CON_IDLE) ){
+ if (FD_ISSET(checkfd, &readfds)) {
+ ptr->input_waiting = 1;
+ if (!bind_me) {
+ bind_me = ptr; /* I choose you! */
+ bind_me->state = CON_EXECUTING;
+ }
+ else {
+ ptr->state = CON_READY;
+ }
+ } else if ((ptr->is_async) && (ptr->async_waiting) && (ptr->h_async_function)) {
+ if (!bind_me) {
+ bind_me = ptr; /* I choose you! */
+ bind_me->state = CON_EXECUTING;
+ }
+ else {
+ ptr->state = CON_READY;
+ }
+ }
+ }
+ }
+ end_critical_section(S_SESSION_TABLE);
+
+SKIP_SELECT:
+ /* We're bound to a session */
+ if (bind_me != NULL) {
+ become_session(bind_me);
+
+ if (bind_me->state == CON_STARTING) {
+ bind_me->state = CON_EXECUTING;
+ begin_session(bind_me);
+ bind_me->h_greeting_function();
+ }
+ /* If the client has sent a command, execute it. */
+ if (CC->input_waiting) {
+ CC->h_command_function();
+
+ while (HaveMoreLinesWaiting(CC))
+ CC->h_command_function();
+
+ CC->input_waiting = 0;
+ }
+
+ /* If there are asynchronous messages waiting and the
+ * client supports it, do those now */
+ if ((CC->is_async) && (CC->async_waiting)
+ && (CC->h_async_function != NULL)) {
+ CC->h_async_function();
+ CC->async_waiting = 0;
+ }
+
+ force_purge = CC->kill_me;
+ become_session(NULL);
+ bind_me->state = CON_IDLE;
+ }
+
+ dead_session_purge(force_purge);
+ do_housekeeping();
+ }
+ /* If control reaches this point, the server is shutting down */
+ return(NULL);
+}
+
+
+
+
+/*
+ * A function to handle selecting on master sockets.
+ * In other words it handles new connections.
+ * It is a thread.
+ */
+void *select_on_master (void *arg)
+{
+ struct ServiceFunctionHook *serviceptr;
+ fd_set master_fds;
+ int highest;
+ struct timeval tv;
+ int ssock; /* Descriptor for client socket */
+ CitContext *con= NULL; /* Temporary context pointer */
+ int m;
+ int i;
+ int retval;
+
+ while (!CtdlThreadCheckStop()) {
+ /* Initialize the fdset. */
+ FD_ZERO(&master_fds);
+ highest = 0;
+
/* First, add the various master sockets to the fdset. */
for (serviceptr = ServiceHookTable; serviceptr != NULL;
serviceptr = serviceptr->next ) {
m = serviceptr->msock;
- FD_SET(m, &readfds);
+ FD_SET(m, &master_fds);
if (m > highest) {
highest = m;
}
}
if (!CtdlThreadCheckStop()) {
- tv.tv_sec = 1; /* wake up every second if no input */
+ tv.tv_sec = 60; /* wake up every second if no input */
tv.tv_usec = 0;
- retval = CtdlThreadSelect(highest + 1, &readfds, NULL, NULL, &tv);
+ retval = CtdlThreadSelect(highest + 1, &master_fds, NULL, NULL, &tv);
}
else
return NULL;
if (errno == EBADF) {
CtdlLogPrintf(CTDL_NOTICE, "select() failed: (%s)\n",
strerror(errno));
- goto do_select;
+ continue;
}
if (errno != EINTR) {
CtdlLogPrintf(CTDL_EMERG, "Exiting (%s)\n", strerror(errno));
} else {
CtdlLogPrintf(CTDL_DEBUG, "Interrupted CtdlThreadSelect.\n");
if (CtdlThreadCheckStop()) return(NULL);
- goto do_select;
+ continue;
}
}
else if(retval == 0) {
if (CtdlThreadCheckStop()) return(NULL);
- goto SKIP_SELECT;
+ continue;
}
/* Next, check to see if it's a new client connecting
* on a master socket.
else for (serviceptr = ServiceHookTable; serviceptr != NULL;
serviceptr = serviceptr->next ) {
- if (FD_ISSET(serviceptr->msock, &readfds)) {
+ if (FD_ISSET(serviceptr->msock, &master_fds)) {
ssock = accept(serviceptr->msock, NULL, 0);
if (ssock >= 0) {
CtdlLogPrintf(CTDL_DEBUG,
serviceptr->h_command_function;
con->h_async_function =
serviceptr->h_async_function;
+ con->h_greeting_function = serviceptr->h_greeting_function;
con->ServiceName =
serviceptr->ServiceName;
SO_REUSEADDR,
&i, sizeof(i));
- become_session(con);
- begin_session(con);
- serviceptr->h_greeting_function();
- become_session(NULL);
- con->state = CON_IDLE;
- goto do_select;
- }
- }
- }
+ con->state = CON_GREETING;
- /* It must be a client socket. Find a context that has data
- * waiting on its socket *and* is in the CON_IDLE state. Any
- * active sockets other than our chosen one are marked as
- * CON_READY so the next thread that comes around can just bind
- * to one without having to select() again.
- */
- begin_critical_section(S_SESSION_TABLE);
- for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
- if ( (FD_ISSET(ptr->client_socket, &readfds))
- && (ptr->state != CON_EXECUTING) ) {
- ptr->input_waiting = 1;
- if (!bind_me) {
- bind_me = ptr; /* I choose you! */
- bind_me->state = CON_EXECUTING;
- }
- else {
- ptr->state = CON_READY;
+ retval--;
+ if (retval == 0)
+ break;
}
}
}
- end_critical_section(S_SESSION_TABLE);
-
-SKIP_SELECT:
- /* We're bound to a session */
- if (bind_me != NULL) {
- become_session(bind_me);
-
- /* If the client has sent a command, execute it. */
- if (CC->input_waiting) {
- CC->h_command_function();
- CC->input_waiting = 0;
- }
-
- /* If there are asynchronous messages waiting and the
- * client supports it, do those now */
- if ((CC->is_async) && (CC->async_waiting)
- && (CC->h_async_function != NULL)) {
- CC->h_async_function();
- CC->async_waiting = 0;
- }
-
- force_purge = CC->kill_me;
- become_session(NULL);
- bind_me->state = CON_IDLE;
- }
-
- dead_session_purge(force_purge);
- do_housekeeping();
}
- /* If control reaches this point, the server is shutting down */
- return(NULL);
+ return NULL;
}
-
/*
* SyslogFacility()
* Translate text facility name to syslog.h defined value.