X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fsysdep.c;h=f8ff6df46eb0b0c06aa7132e6c80ecdfd12c0bd7;hb=466bec234ce6f495f03c67a0789b85b3440b32a1;hp=3ddc662aa549ca65b29d22242ea6c9e66708220c;hpb=1421d26887f154439d2cd27075c7e85dc22f644f;p=citadel.git

diff --git a/citadel/sysdep.c b/citadel/sysdep.c
index 3ddc662aa..f8ff6df46 100644
--- a/citadel/sysdep.c
+++ b/citadel/sysdep.c
@@ -1,8 +1,5 @@
 /*
- * $Id$
- *
  * Citadel "system dependent" stuff.
- * See COPYING for copyright information.
  *
  * Here's where we (hopefully) have most parts of the Citadel server that
  * would need to be altered to run the server in a non-POSIX environment.
@@ -10,6 +7,15 @@
  * If we ever port to a different platform and either have multiple
  * variants of this file or simply load it up with #ifdefs.
  *
+ * Copyright (c) 1987-2011 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
 #include "sysdep.h"
@@ -49,6 +55,7 @@
 #include <errno.h>
 #include <stdarg.h>
 #include <grp.h>
+#define SHOW_ME_VAPPEND_PRINTF
 #include <libcitadel.h>
 #include "citadel.h"
 #include "server.h"
@@ -66,89 +73,12 @@
 #include <sys/select.h>
 #endif
 
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
-
 #include "ctdl_module.h"
 #include "threads.h"
 #include "user_ops.h"
 #include "control.h"
 
 
-#ifdef DEBUG_MEMORY_LEAKS
-struct igheap {
-	struct igheap *next;
-	char file[32];
-	int line;
-	void *block;
-};
-
-struct igheap *igheap = NULL;
-#endif
-
-
-int verbosity = DEFAULT_VERBOSITY;		/* Logging level */
-
-int syslog_facility = LOG_DAEMON;
-int enable_syslog = 0;
-
-
-/*
- * CtdlLogPrintf()  ...   Write logging information
- */
-void CtdlLogPrintf(enum LogLevel loglevel, const char *format, ...) {   
-	va_list arg_ptr;
-	va_start(arg_ptr, format);
-	vCtdlLogPrintf(loglevel, format, arg_ptr);
-	va_end(arg_ptr);
-}
-
-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);
-	}
-
-	/* stderr output code */
-	if (enable_syslog || running_as_daemon) return;
-
-	/* if we run in forground and syslog is disabled, log to terminal */
-	if (loglevel <= verbosity) { 
-		struct timeval tv;
-		struct tm tim;
-		time_t unixtime;
-		struct CitContext *CCC = CC;
-
-		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);
-		}
-		vsnprintf(buf2, SIZ, format, arg_ptr);   
-
-		fprintf(stderr, "%s%s", buf, buf2);
-		fflush(stderr);
-	}
-}   
-
-
-
 /*
  * Signal handler to shut down the server.
  */
@@ -159,15 +89,13 @@ volatile int restart_server = 0;
 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;
-	}
+	syslog(LOG_DEBUG, "Caught signal %d; shutting down.", signum);
+	exit_signal = signum;
+	server_shutting_down = 1;
+}
+
+static RETSIGTYPE signal_exit(int signum) {
+	exit(1);
 }
 
 
@@ -200,32 +128,24 @@ void init_sysdep(void) {
 	 * CitContext structure (in the ContextList linked list) of the
 	 * session to which the calling thread is currently bound.
 	 */
-	if (citthread_key_create(&MyConKey, NULL) != 0) {
-		CtdlLogPrintf(CTDL_CRIT, "Can't create TSD key: %s\n",
-			strerror(errno));
+	if (pthread_key_create(&MyConKey, NULL) != 0) {
+		syslog(LOG_CRIT, "Can't create TSD key: %s", strerror(errno));
 	}
 
 	/*
-	 * The action for unexpected signals and exceptions should be to
-	 * call signal_cleanup() to gracefully shut down the server.
+	 * Interript, hangup, and terminate signals should cause the server
+	 * to gracefully clean up and shut down.
 	 */
 	sigemptyset(&set);
 	sigaddset(&set, SIGINT);
-	sigaddset(&set, SIGQUIT);
 	sigaddset(&set, SIGHUP);
 	sigaddset(&set, SIGTERM);
-	// sigaddset(&set, SIGSEGV);	commented out because
-	// sigaddset(&set, SIGILL);	we want core dumps
-	// sigaddset(&set, SIGBUS);
 	sigprocmask(SIG_UNBLOCK, &set, NULL);
 
 	signal(SIGINT, signal_cleanup);
-	signal(SIGQUIT, signal_cleanup);
 	signal(SIGHUP, signal_cleanup);
 	signal(SIGTERM, signal_cleanup);
-	// signal(SIGSEGV, signal_cleanup);	commented out because
-	// signal(SIGILL, signal_cleanup);	we want core dumps
-	// signal(SIGBUS, signal_cleanup);
+	signal(SIGUSR2, signal_exit);
 
 	/*
 	 * Do not shut down the server on broken pipe signals, otherwise the
@@ -236,90 +156,119 @@ void init_sysdep(void) {
 }
 
 
-
-
-/*
+/* 
  * This is a generic function to set up a master socket for listening on
- * a TCP port.  The server shuts down if the bind fails.
+ * a TCP port.  The server shuts down if the bind fails.  (IPv4/IPv6 version)
  *
+ * ip_addr 	IP address to bind
+ * port_number	port number to bind
+ * queue_len	number of incoming connections to allow in the queue
  */
-int ig_tcp_server(char *ip_addr, int port_number, int queue_len, char **errormessage)
+int ctdl_tcp_server(char *ip_addr, int port_number, int queue_len, char *errormessage)
 {
-	struct sockaddr_in sin;
-	int s, i;
-	int actual_queue_len;
-
-	actual_queue_len = queue_len;
-	if (actual_queue_len < 5) actual_queue_len = 5;
-
-	memset(&sin, 0, sizeof(sin));
-	sin.sin_family = AF_INET;
-	sin.sin_port = htons((u_short)port_number);
-	if (ip_addr == NULL) {
-		sin.sin_addr.s_addr = INADDR_ANY;
+	struct protoent *p;
+	struct sockaddr_in6 sin6;
+	struct sockaddr_in sin4;
+	int s, i, b;
+	int ip_version = 6;
+
+	memset(&sin6, 0, sizeof(sin6));
+	memset(&sin4, 0, sizeof(sin4));
+	sin6.sin6_family = AF_INET6;
+	sin4.sin_family = AF_INET;
+
+	if (	(ip_addr == NULL)							/* any IPv6 */
+		|| (IsEmptyStr(ip_addr))
+		|| (!strcmp(ip_addr, "*"))
+	) {
+		ip_version = 6;
+		sin6.sin6_addr = in6addr_any;
 	}
-	else {
-		sin.sin_addr.s_addr = inet_addr(ip_addr);
+	else if (!strcmp(ip_addr, "0.0.0.0"))						/* any IPv4 */
+	{
+		ip_version = 4;
+		sin4.sin_addr.s_addr = INADDR_ANY;
+	}
+	else if ((strchr(ip_addr, '.')) && (!strchr(ip_addr, ':')))			/* specific IPv4 */
+	{
+		ip_version = 4;
+		if (inet_pton(AF_INET, ip_addr, &sin4.sin_addr) <= 0) {
+			snprintf(errormessage, SIZ,
+				 "Error binding to [%s] : %s", ip_addr, strerror(errno)
+			);
+			syslog(LOG_ALERT, "%s", errormessage);
+			return (-1);
+		}
+	}
+	else										/* specific IPv6 */
+	{
+		ip_version = 6;
+		if (inet_pton(AF_INET6, ip_addr, &sin6.sin6_addr) <= 0) {
+			snprintf(errormessage, SIZ,
+				 "Error binding to [%s] : %s", ip_addr, strerror(errno)
+			);
+			syslog(LOG_ALERT, "%s", errormessage);
+			return (-1);
+		}
 	}
-										
-	if (sin.sin_addr.s_addr == !INADDR_ANY) {
-		sin.sin_addr.s_addr = INADDR_ANY;
+
+	if (port_number == 0) {
+		snprintf(errormessage, SIZ, "Can't start: no port number specified.");
+		syslog(LOG_ALERT, "%s", errormessage);
+		return (-1);
 	}
+	sin6.sin6_port = htons((u_short) port_number);
+	sin4.sin_port = htons((u_short) port_number);
 
-	s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+	p = getprotobyname("tcp");
 
+	s = socket( ((ip_version == 6) ? PF_INET6 : PF_INET), SOCK_STREAM, (p->p_proto));
 	if (s < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
-				 "citserver: Can't create a socket: %s",
-				 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
-		return(-1);
+		snprintf(errormessage, SIZ,
+			 "Can't create a listening socket: %s", strerror(errno)
+		);
+		syslog(LOG_ALERT, "%s", errormessage);
+		return (-1);
 	}
-
+	/* Set some socket options that make sense. */
 	i = 1;
 	setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
 
-	if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
-				 "citserver: Can't bind: %s",
-				 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
-		close(s);
-		return(-1);
+	if (ip_version == 6) {
+		b = bind(s, (struct sockaddr *) &sin6, sizeof(sin6));
 	}
-
-	/* set to nonblock - we need this for some obscure situations */
-	if (fcntl(s, F_SETFL, O_NONBLOCK) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
-				 "citserver: Can't set socket to non-blocking: %s",
-				 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
-		close(s);
-		return(-1);
+	else {
+		b = bind(s, (struct sockaddr *) &sin4, sizeof(sin4));
 	}
 
-	if (listen(s, actual_queue_len) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
-				 "citserver: Can't listen: %s",
-				 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
-		close(s);
-		return(-1);
+	if (b < 0) {
+		snprintf(errormessage, SIZ,
+			 "Can't bind: %s", strerror(errno)
+		);
+		syslog(LOG_ALERT, "%s", errormessage);
+		return (-1);
 	}
 
-	return(s);
+	fcntl(s, F_SETFL, O_NONBLOCK);
+
+	if (listen(s, ((queue_len >= 5) ? queue_len : 5) ) < 0) {
+		snprintf(errormessage, SIZ,
+			 "Can't listen: %s", strerror(errno)
+		);
+		syslog(LOG_ALERT, "%s", errormessage);
+		return (-1);
+	}
+	return (s);
 }
 
 
 
+
+
 /*
  * Create a Unix domain socket and listen on it
  */
-int ig_uds_server(char *sockpath, int queue_len, char **errormessage)
+int ctdl_uds_server(char *sockpath, int queue_len, char *errormessage)
 {
 	struct sockaddr_un addr;
 	int s;
@@ -334,10 +283,10 @@ int ig_uds_server(char *sockpath, int queue_len, char **errormessage)
 
 	i = unlink(sockpath);
 	if ((i != 0) && (errno != ENOENT)) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, "citserver: can't unlink %s: %s",
-			sockpath, strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
+		snprintf(errormessage, SIZ, "citserver: can't unlink %s: %s",
+			sockpath, strerror(errno)
+		);
+		syslog(LOG_EMERG, "%s", errormessage);
 		return(-1);
 	}
 
@@ -347,40 +296,36 @@ int ig_uds_server(char *sockpath, int queue_len, char **errormessage)
 
 	s = socket(AF_UNIX, SOCK_STREAM, 0);
 	if (s < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
+		snprintf(errormessage, SIZ, 
 			 "citserver: Can't create a socket: %s",
 			 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
+		syslog(LOG_EMERG, "%s", errormessage);
 		return(-1);
 	}
 
 	if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
+		snprintf(errormessage, SIZ, 
 			 "citserver: Can't bind: %s",
 			 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
+		syslog(LOG_EMERG, "%s", errormessage);
 		return(-1);
 	}
 
 	/* set to nonblock - we need this for some obscure situations */
 	if (fcntl(s, F_SETFL, O_NONBLOCK) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
+		snprintf(errormessage, SIZ, 
 			 "citserver: Can't set socket to non-blocking: %s",
 			 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
+		syslog(LOG_EMERG, "%s", errormessage);
 		close(s);
 		return(-1);
 	}
 
 	if (listen(s, actual_queue_len) < 0) {
-		*errormessage = (char*) malloc(SIZ + 1);
-		snprintf(*errormessage, SIZ, 
+		snprintf(errormessage, SIZ, 
 			 "citserver: Can't listen: %s",
 			 strerror(errno));
-		CtdlLogPrintf(CTDL_EMERG, "%s\n", *errormessage);
+		syslog(LOG_EMERG, "%s", errormessage);
 		return(-1);
 	}
 
@@ -437,12 +382,39 @@ void flush_output(void) {
 #endif
 }
 
+/*
+static void flush_client_inbuf(void)
+{
+	CitContext *CCC=CC;
+
+	FlushStrBuf(CCC->ReadBuf);
+	CCC->RecvBuf->ReadWritePointer = NULL;
+
+}
+*/
+
+
+/*
+ * client_close()	...	close the client socket
+ */
+void client_close(void) {
+	CitContext *CCC = CC;
+
+	if (!CCC) return;
+	if (CCC->client_socket <= 0) return;
+	syslog(LOG_DEBUG, "Closing socket %d", CCC->client_socket);
+
+	close(CCC->client_socket);
+	CCC->client_socket = -1 ;
+}
+
+
 
 
 /*
  * 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;
@@ -450,19 +422,36 @@ int client_write(char *buf, int nbytes)
 	int old_buffer_len = 0;
 #endif
 	fd_set wset;
-	t_context *Ctx;
+	CitContext *Ctx;
 	int fdflags;
 
+	if (nbytes < 1) return(0);
+
 	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);
+
+#ifdef BIGBAD_IODBG
+	{
+		int rv = 0;
+		char fn [SIZ];
+		FILE *fd;
+		
+		snprintf(fn, SIZ, "/tmp/foolog_%s.%d", Ctx->ServiceName, Ctx->cs_pid);
+		
+		fd = fopen(fn, "a+");
+		if (fd)
+		{
+		    fprintf(fd, "Sending: BufSize: %d BufContent: [",
+			    nbytes);
+		    rv = fwrite(buf, nbytes, 1, fd);
+		    fprintf(fd, "]\n");
+		    fclose(fd);
 		}
-		memcpy(&Ctx->redirect_buffer[Ctx->redirect_len], buf, nbytes);
-		Ctx->redirect_len += nbytes;
-		Ctx->redirect_buffer[Ctx->redirect_len] = 0;
+	}
+#endif
+//	flush_client_inbuf();
+	if (Ctx->redirect_buffer != NULL) {
+		StrBufAppendBufPlain(Ctx->redirect_buffer,
+				     buf, nbytes, 0);
 		return 0;
 	}
 
@@ -472,34 +461,51 @@ int client_write(char *buf, int nbytes)
 		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)
+				{
+					syslog(LOG_DEBUG, "client_write(%d bytes) select() interrupted.",
+						nbytes-bytes_written
+					);
+					if (server_shutting_down) {
+						CC->kill_me = KILLME_SELECT_INTERRUPTED;
+						return (-1);
+					} else {
+						/* can't trust fd's and stuff so we need to re-create them */
+						continue;
+					}
+				} else {
+					syslog(LOG_ERR,
+						"client_write(%d bytes) select failed: %s (%d)",
+						nbytes - bytes_written,
+						strerror(errno), errno
+					);
+					cit_backtrace();
+					client_close();
+					Ctx->kill_me = KILLME_SELECT_FAILED;
+					return -1;
+				}
 			}
 		}
 
-		retval = write(Ctx->client_socket, &buf[bytes_written],
-			nbytes - bytes_written);
+		retval = write(Ctx->client_socket, &buf[bytes_written], nbytes - bytes_written);
 		if (retval < 1) {
-			CtdlLogPrintf(CTDL_ERR,
-				"client_write(%d bytes) failed: %s (%d)\n",
+			syslog(LOG_ERR,
+				"client_write(%d bytes) failed: %s (%d)",
 				nbytes - bytes_written,
-				strerror(errno), errno);
+				strerror(errno), errno
+			);
 			cit_backtrace();
-			// CtdlLogPrintf(CTDL_DEBUG, "Tried to send: %s",  &buf[bytes_written]);
-			Ctx->kill_me = 1;
+			client_close();
+			Ctx->kill_me = KILLME_WRITE_FAILED;
 			return -1;
 		}
 		bytes_written = bytes_written + retval;
@@ -507,6 +513,10 @@ int client_write(char *buf, int nbytes)
 	return 0;
 }
 
+void cputbuf(const StrBuf *Buf) {   
+	client_write(ChrPtr(Buf), StrLength(Buf)); 
+}   
+
 
 /*
  * cprintf()	Send formatted printable data to the client.
@@ -526,60 +536,200 @@ void cprintf(const char *format, ...) {
 
 /*
  * 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) {
+#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, "Reading BLOB: BufSize: %d ",
+			bytes);
+		rv = fwrite(ChrPtr(Target), StrLength(Target), 1, fd);
+		fprintf(fd, "]\n");
+		
+			
+		fclose(fd);
+#endif
+		retval = client_read_sslblob(Target, bytes, timeout);
+		if (retval < 0) {
+			syslog(LOG_CRIT, "client_read_blob() failed");
+		}
+#ifdef BIGBAD_IODBG
+		snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+		
+		fd = fopen(fn, "a+");
+		fprintf(fd, "Read: %d BufContent: [",
+			StrLength(Target));
+		rv = fwrite(ChrPtr(Target), StrLength(Target), 1, fd);
+		fprintf(fd, "]\n");
+		
+		
+		fclose(fd);
+#endif
 	}
+	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;
+	{
+#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, "Reading BLOB: BufSize: %d ",
+			bytes);
+		rv = fwrite(ChrPtr(Target), StrLength(Target), 1, fd);
+		fprintf(fd, "]\n");
+		
+			
+		fclose(fd);
+#endif
+		retval = StrBufReadBLOBBuffered(Target, 
+						CCC->RecvBuf.Buf,
+						&CCC->RecvBuf.ReadWritePointer,
+						&CCC->client_socket,
+						1, 
+						bytes,
+						O_TERM,
+						&Error);
+		if (retval < 0) {
+			syslog(LOG_CRIT, "client_read_blob() failed: %s", Error);
+			client_close();
+			return retval;
+		}
+#ifdef BIGBAD_IODBG
+		snprintf(fn, SIZ, "/tmp/foolog_%s.%d", CCC->ServiceName, CCC->cs_pid);
+		
+		fd = fopen(fn, "a+");
+		fprintf(fd, "Read: %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)
+{
+	CitContext *CCC=CC;
+	FlushStrBuf(CCC->RecvBuf.Buf);
+	ReAdjustEmptyBuf(CCC->RecvBuf.Buf, 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->RecvBuf.Buf);
+		pch = ChrPtr(CCC->RecvBuf.Buf);
 
-		retval = select( (fd)+1, 
-				 &rfds, NULL, NULL, &tv);
-		if (retval < 0)
+		if (len > 0)
 		{
-			if (errno == EINTR)
+			if (CCC->RecvBuf.ReadWritePointer != NULL) {
+				len -= CCC->RecvBuf.ReadWritePointer - pch;
+				pch = CCC->RecvBuf.ReadWritePointer;
+			}
+			StrBufAppendBufPlain(Target, pch, len, 0);
+			FlushStrBuf(CCC->RecvBuf.Buf);
+			CCC->RecvBuf.ReadWritePointer = 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;
+	}
+	else
+	{
+		memcpy(buf, 
+		       ChrPtr(CCC->MigrateBuf),
+		       StrLength(CCC->MigrateBuf) + 1);
+		FlushStrBuf(CCC->MigrateBuf);
+		return rc;
 	}
-	return(1);
 }
 
+
+int HaveMoreLinesWaiting(CitContext *CCC)
+{
+	if ((CCC->kill_me != 0) ||
+	    ( (CCC->RecvBuf.ReadWritePointer == NULL) && 
+	      (StrLength(CCC->RecvBuf.Buf) == 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
@@ -590,6 +740,127 @@ INLINE int client_read(char *buf, int bytes)
 	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->RecvBuf.Buf);
+		len = StrLength(CCC->RecvBuf.Buf);
+		if (CCC->RecvBuf.ReadWritePointer != NULL)
+			rlen = CCC->RecvBuf.ReadWritePointer - 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->RecvBuf.Buf,
+					       &CCC->RecvBuf.ReadWritePointer,
+					       1);
+#ifdef BIGBAD_IODBG
+                pch = ChrPtr(CCC->RecvBuf.Buf);
+                nlen = StrLength(CCC->RecvBuf.Buf);
+                if (CCC->RecvBuf.ReadWritePointer != NULL)
+                        nrlen = CCC->RecvBuf.ReadWritePointer - 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) {
+			syslog(LOG_CRIT, "CtdlClientGetLine() failed");
+		}
+#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->RecvBuf.Buf);
+		len = StrLength(CCC->RecvBuf.Buf);
+		if (CCC->RecvBuf.ReadWritePointer != NULL)
+			rlen = CCC->RecvBuf.ReadWritePointer - 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->RecvBuf.Buf,
+						       &CCC->RecvBuf.ReadWritePointer,
+						       &CCC->client_socket,
+						       5,
+						       1,
+						       &Error);
+
+#ifdef BIGBAD_IODBG
+                pch = ChrPtr(CCC->RecvBuf.Buf);
+                nlen = StrLength(CCC->RecvBuf.Buf);
+                if (CCC->RecvBuf.ReadWritePointer != NULL)
+                        nrlen = CCC->RecvBuf.ReadWritePointer - 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)) {
+			syslog(LOG_CRIT, "CtdlClientGetLine() failed: %s", Error);
+		}
+#endif
+		return rc;
+	}
+}
+
 
 /*
  * client_getln()   ...   Get a LF-terminated line of text from the client.
@@ -599,32 +870,33 @@ INLINE int client_read(char *buf, int bytes)
 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);
 }
 
 
@@ -636,7 +908,8 @@ int client_getln(char *buf, int bufsize)
 void close_masters (void)
 {
 	struct ServiceFunctionHook *serviceptr;
-	
+	const char *Text;
+
 	/*
 	 * close all protocol master sockets
 	 */
@@ -645,16 +918,37 @@ void close_masters (void)
 
 		if (serviceptr->tcp_port > 0)
 		{
-			CtdlLogPrintf(CTDL_INFO, "Closing listener on port %d\n",
-				serviceptr->tcp_port);
+			if (serviceptr->msock == -1)
+				Text = "not closing again";
+			else
+				Text = "Closing";
+					
+			syslog(LOG_INFO, "%s %d listener on port %d\n",
+			       Text,
+			       serviceptr->msock,
+			       serviceptr->tcp_port);
 			serviceptr->tcp_port = 0;
 		}
 		
 		if (serviceptr->sockpath != NULL)
-			CtdlLogPrintf(CTDL_INFO, "Closing listener on '%s'\n",
-				serviceptr->sockpath);
+		{
+			if (serviceptr->msock == -1)
+				Text = "not closing again";
+			else
+				Text = "Closing";
+
+			syslog(LOG_INFO, "%s %d listener on '%s'\n",
+			       Text,
+			       serviceptr->msock,
+			       serviceptr->sockpath);
+		}
+
+                if (serviceptr->msock != -1)
+		{
+			close(serviceptr->msock);
+			serviceptr->msock = -1;
+		}
 
-		close(serviceptr->msock);
 		/* If it's a Unix domain socket, remove the file. */
 		if (serviceptr->sockpath != NULL) {
 			unlink(serviceptr->sockpath);
@@ -685,10 +979,13 @@ void sysdep_master_cleanup(void) {
 	CtdlDestroyCleanupHooks();
 	CtdlDestroyFixedOutputHooks();	
 	CtdlDestroySessionHooks();
+	CtdlDestroyTDAPVetoHooks();
 	CtdlDestroyServiceHook();
 	CtdlDestroyRoomHooks();
+	CtdlDestroySearchHooks();
+	CtdlDestroyDebugTable();
 	#ifdef HAVE_BACKTRACE
-	eCrash_Uninit();
+///	eCrash_Uninit();
 	#endif
 }
 
@@ -720,7 +1017,10 @@ void start_daemon(int unused) {
 	 * 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)
+		syslog(LOG_EMERG, 
+			      "unable to change into directory [%s]: %s", 
+			      ctdl_run_dir, strerror(errno));
 
 	child = fork();
 	if (child != 0) {
@@ -733,9 +1033,13 @@ void start_daemon(int unused) {
 
 	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))
+		syslog(LOG_EMERG, 
+			      "unable to reopen stdin/out/err %s", 
+			      strerror(errno));
+		
 
 	do {
 		current_child = fork();
@@ -759,7 +1063,7 @@ void start_daemon(int unused) {
 			}
 			waitpid(current_child, &status, 0);
 		}
-		do_restart = 0;
+
 		nFireUpsNonRestart = nFireUps;
 		
 		/* Exit code 0 means the watcher should exit */
@@ -794,7 +1098,7 @@ void checkcrash(void)
 		StrBuf *CrashMail;
 
 		CrashMail = NewStrBuf();
-		CtdlLogPrintf(CTDL_ALERT, "Posting crash message\n");
+		syslog(LOG_ALERT, "Posting crash message\n");
 		StrBufPrintf(CrashMail, 
 			" \n"
 			" The Citadel server process (citserver) terminated unexpectedly."
@@ -803,8 +1107,9 @@ void checkcrash(void)
 			"factor.\n \n"
 			" You can obtain more information about this by enabling core dumps.\n \n"
 			" 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"
+			" http://citadel.org/doku.php?id=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);
@@ -837,50 +1142,108 @@ int convert_login(char NameToConvert[]) {
 
 
 
+void HuntBadSession(void)
+{
+	int highest;
+	CitContext *ptr;
+	fd_set readfds;
+	struct timeval tv;
+	struct ServiceFunctionHook *serviceptr;
+
+
+
+	/* Next, add all of the client sockets. */
+	begin_critical_section(S_SESSION_TABLE);
+	for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
+		if ((ptr->state == CON_SYS) && (ptr->client_socket == 0))
+			continue;
+		/* Initialize the fdset. */
+		FD_ZERO(&readfds);
+		highest = 0;
+		tv.tv_sec = 0;		/* wake up every second if no input */
+		tv.tv_usec = 0;
+
+		/* Don't select on dead sessions, only truly idle ones */
+		if (	(ptr->state == CON_IDLE)
+			&& (ptr->kill_me == 0)
+			&& (ptr->client_socket > 0)
+			) {
+			FD_SET(ptr->client_socket, &readfds);
+			if (ptr->client_socket > highest)
+				highest = ptr->client_socket;
+			
+			if ((select(highest + 1, &readfds, NULL, NULL, &tv) < 0) &&
+			    (errno == EBADF))
+			{
+				/* Gotcha! */
+				syslog(LOG_EMERG,
+				       "Killing Session CC[%d] bad FD: [%d:%d] User[%s] Host[%s:%s]\n",
+				       ptr->cs_pid,
+				       ptr->client_socket,
+				       ptr->is_local_socket,
+				       ptr->curr_user,
+				       ptr->cs_host,ptr->cs_addr);
+
+				ptr->kill_me = 1;
+				ptr->client_socket = -1;
+				break;
+			}
+		}
+		
+	}
+	end_critical_section(S_SESSION_TABLE);
+
+
+	/* First, add the various master sockets to the fdset. */
+	for (serviceptr = ServiceHookTable; serviceptr != NULL; serviceptr = serviceptr->next ) {
+
+		/* Initialize the fdset. */
+		highest = 0;
+		tv.tv_sec = 0;		/* wake up every second if no input */
+		tv.tv_usec = 0;
+
+		FD_SET(serviceptr->msock, &readfds);
+		if (serviceptr->msock > highest) {
+			highest = serviceptr->msock;
+		}
+		if ((select(highest + 1, &readfds, NULL, NULL, &tv) < 0) &&
+		    (errno == EBADF))
+		{
+			/* Gotcha! server socket dead? commit suicide! */
+			syslog(LOG_EMERG,
+			       "Found bad FD: %d and its a server socket! Shutting Down!\n",
+			       serviceptr->msock);
+
+			server_shutting_down = 1;
+			break;
+		}
+	}
+
+
+}
+
+
 /* 
  * This loop just keeps going and going and going...
  */
-/*
- * FIXME:
- * This current implimentation of worker_thread creates a bottle neck in several situations
- * The first thing to remember is that a single thread can handle more than one connection at a time.
- * More threads mean less memory for the system to run in.
- * So for efficiency we want every thread to be doing something useful or waiting in the main loop for
- * something to happen anywhere.
- * This current implimentation requires worker threads to wait in other locations, after it has
- * been committed to a single connection which is very wasteful.
- * As an extreme case consider this:
- * A slow client connects and this slow client sends only one character each second.
- * With this current implimentation a single worker thread is dispatched to handle that connection
- * until such times as the client timeout expires, an error occurs on the socket or the client
- * completes its transmission.
- * THIS IS VERY BAD since that thread could have handled a read from many more clients in each one
- * second interval between chars.
- *
- * It is my intention to re-write this code and the associated client_getln, client_read functions
- * to allow any thread to read data on behalf of any connection (context).
- * To do this I intend to have this main loop read chars into a buffer stored in the context.
- * Once the correct criteria for a full buffer is met then we will dispatch a thread to 
- * process it.
- * This worker thread loop also needs to be able to handle binary data.
- */
- 
-void *worker_thread(void *arg) {
-	int i;
+void *worker_thread(void *blah) {
 	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;
-	
+	struct ServiceFunctionHook *serviceptr;
+	int ssock;                      /* Descriptor for client socket */
+	CitContext *con = NULL;         /* Temporary context pointer */
+	int i;
 
-	while (!CtdlThreadCheckStop()) {
+	pthread_mutex_lock(&ThreadCountMutex);
+	++num_workers;
+	pthread_mutex_unlock(&ThreadCountMutex);
+
+	while (!server_shutting_down) {
 
 		/* make doubly sure we're not holding any stale db handles
 		 * which might cause a deadlock.
@@ -893,10 +1256,25 @@ do_select:	force_purge = 0;
 		FD_ZERO(&readfds);
 		highest = 0;
 
+		/* First, add the various master sockets to the fdset. */
+		for (serviceptr = ServiceHookTable; serviceptr != NULL; serviceptr = serviceptr->next ) {
+			FD_SET(serviceptr->msock, &readfds);
+			if (serviceptr->msock > highest) {
+				highest = serviceptr->msock;
+			}
+		}
+
+		/* Next, add all of the client sockets. */
 		begin_critical_section(S_SESSION_TABLE);
 		for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
-			/* Dont select on dead sessions only truly idle ones */
-			if ((ptr->state == CON_IDLE)) {
+			if ((ptr->state == CON_SYS) && (ptr->client_socket == 0))
+			    continue;
+
+			/* Don't select on dead sessions, only truly idle ones */
+			if (	(ptr->state == CON_IDLE)
+				&& (ptr->kill_me == 0)
+				&& (ptr->client_socket > 0)
+			) {
 				FD_SET(ptr->client_socket, &readfds);
 				if (ptr->client_socket > highest)
 					highest = ptr->client_socket;
@@ -904,6 +1282,12 @@ do_select:	force_purge = 0;
 			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);
@@ -917,65 +1301,62 @@ do_select:	force_purge = 0;
 		 * ahead and get ready to select().
 		 */
 
-		/* First, add the various master sockets to the fdset. */
-		for (serviceptr = ServiceHookTable; serviceptr != NULL;
-	    	serviceptr = serviceptr->next ) {
-			m = serviceptr->msock;
-			FD_SET(m, &readfds);
-			if (m > highest) {
-				highest = m;
-			}
-		}
-
-		if (!CtdlThreadCheckStop()) {
+		if (!server_shutting_down) {
 			tv.tv_sec = 1;		/* wake up every second if no input */
 			tv.tv_usec = 0;
-			retval = CtdlThreadSelect(highest + 1, &readfds, NULL, NULL, &tv);
+			retval = select(highest + 1, &readfds, NULL, NULL, &tv);
 		}
-		else
+		else {
+			--num_workers;
 			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));
+				syslog(LOG_EMERG, "select() failed: (%s)\n", strerror(errno));
+				HuntBadSession ();
 				goto do_select;
 			}
 			if (errno != EINTR) {
-				CtdlLogPrintf(CTDL_EMERG, "Exiting (%s)\n", strerror(errno));
-				CtdlThreadStopAll();
+				syslog(LOG_EMERG, "Exiting (%s)\n", strerror(errno));
+				server_shutting_down = 1;
+				continue;
 			} else {
-				CtdlLogPrintf(CTDL_DEBUG, "Interrupted CtdlThreadSelect.\n");
-				if (CtdlThreadCheckStop()) return(NULL);
+#if 0
+				syslog(LOG_DEBUG, "Interrupted select()\n");
+#endif
+				if (server_shutting_down) {
+					--num_workers;
+					return(NULL);
+				}
 				goto do_select;
 			}
 		}
-		else if(retval == 0) {
-			if (CtdlThreadCheckStop()) return(NULL);
-			goto SKIP_SELECT;
+		else if (retval == 0) {
+			if (server_shutting_down) {
+				--num_workers;
+				return(NULL);
+			}
 		}
-		/* Next, check to see if it's a new client connecting
-		 * on a master socket.
-		 */
-		else for (serviceptr = ServiceHookTable; serviceptr != NULL;
-		     serviceptr = serviceptr->next ) {
+
+		/* Next, check to see if it's a new client connecting * on a master socket. */
+
+		else if ((retval > 0) && (!server_shutting_down)) for (serviceptr = ServiceHookTable; serviceptr != NULL; serviceptr = serviceptr->next) {
 
 			if (FD_ISSET(serviceptr->msock, &readfds)) {
 				ssock = accept(serviceptr->msock, NULL, 0);
 				if (ssock >= 0) {
-					CtdlLogPrintf(CTDL_DEBUG,
-						"New client socket %d\n",
-						ssock);
+					syslog(LOG_DEBUG, "New client socket %d", ssock);
 
 					/* The master socket is non-blocking but the client
 					 * sockets need to be blocking, otherwise certain
 					 * operations barf on FreeBSD.  Not a fatal error.
 					 */
 					if (fcntl(ssock, F_SETFL, 0) < 0) {
-						CtdlLogPrintf(CTDL_EMERG,
+						syslog(LOG_EMERG,
 							"citserver: Can't set socket to blocking: %s\n",
 							strerror(errno));
 					}
@@ -986,30 +1367,25 @@ do_select:	force_purge = 0;
 					con = CreateNewContext();
 
 					/* Assign our new socket number to it. */
+					con->tcp_port = serviceptr->tcp_port;
 					con->client_socket = ssock;
-					con->h_command_function =
-						serviceptr->h_command_function;
-					con->h_async_function =
-						serviceptr->h_async_function;
-					con->ServiceName =
-						serviceptr->ServiceName;
+					con->h_command_function = serviceptr->h_command_function;
+					con->h_async_function = serviceptr->h_async_function;
+					con->h_greeting_function = serviceptr->h_greeting_function;
+					con->ServiceName = serviceptr->ServiceName;
 					
 					/* Determine whether it's a local socket */
-					if (serviceptr->sockpath != NULL)
+					if (serviceptr->sockpath != NULL) {
 						con->is_local_socket = 1;
+					}
 	
 					/* Set the SO_REUSEADDR socket option */
 					i = 1;
-					setsockopt(ssock, SOL_SOCKET,
-						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;
+					setsockopt(ssock, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
+					con->state = CON_GREETING;
+					retval--;
+					if (retval == 0)
+						break;
 				}
 			}
 		}
@@ -1022,15 +1398,25 @@ do_select:	force_purge = 0;
 		 */
 		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;
+			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;
+					}
 				}
 			}
 		}
@@ -1038,12 +1424,25 @@ do_select:	force_purge = 0;
 
 SKIP_SELECT:
 		/* We're bound to a session */
+		pthread_mutex_lock(&ThreadCountMutex);
+		++active_workers;
+		pthread_mutex_unlock(&ThreadCountMutex);
+
 		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;
 			}
 
@@ -1062,14 +1461,28 @@ SKIP_SELECT:
 
 		dead_session_purge(force_purge);
 		do_housekeeping();
+
+		pthread_mutex_lock(&ThreadCountMutex);
+		--active_workers;
+		if ((active_workers + config.c_min_workers < num_workers) &&
+		    (num_workers > config.c_min_workers))
+		{
+			num_workers--;
+			pthread_mutex_unlock(&ThreadCountMutex);
+			return (NULL);
+		}
+		pthread_mutex_unlock(&ThreadCountMutex);
 	}
-	/* If control reaches this point, the server is shutting down */	
+
+	/* If control reaches this point, the server is shutting down */
+	pthread_mutex_lock(&ThreadCountMutex);
+	--num_workers;
+	pthread_mutex_unlock(&ThreadCountMutex);
 	return(NULL);
 }
 
 
 
-
 /*
  * SyslogFacility()
  * Translate text facility name to syslog.h defined value.
@@ -1106,115 +1519,5 @@ int SyslogFacility(char *name)
 		if(!strcasecmp(name, facTbl[i].name))
 			return facTbl[i].facility;
 	}
-	enable_syslog = 0;
 	return LOG_DAEMON;
 }
-
-
-/********** MEM CHEQQER ***********/
-
-#ifdef DEBUG_MEMORY_LEAKS
-
-#undef malloc
-#undef realloc
-#undef strdup
-#undef free
-
-void *tracked_malloc(size_t size, char *file, int line) {
-	struct igheap *thisheap;
-	void *block;
-
-	block = malloc(size);
-	if (block == NULL) return(block);
-
-	thisheap = malloc(sizeof(struct igheap));
-	if (thisheap == NULL) {
-		free(block);
-		return(NULL);
-	}
-
-	thisheap->block = block;
-	strcpy(thisheap->file, file);
-	thisheap->line = line;
-	
-	begin_critical_section(S_DEBUGMEMLEAKS);
-	thisheap->next = igheap;
-	igheap = thisheap;
-	end_critical_section(S_DEBUGMEMLEAKS);
-
-	return(block);
-}
-
-
-void *tracked_realloc(void *ptr, size_t size, char *file, int line) {
-	struct igheap *thisheap;
-	void *block;
-
-	block = realloc(ptr, size);
-	if (block == NULL) return(block);
-
-	thisheap = malloc(sizeof(struct igheap));
-	if (thisheap == NULL) {
-		free(block);
-		return(NULL);
-	}
-
-	thisheap->block = block;
-	strcpy(thisheap->file, file);
-	thisheap->line = line;
-	
-	begin_critical_section(S_DEBUGMEMLEAKS);
-	thisheap->next = igheap;
-	igheap = thisheap;
-	end_critical_section(S_DEBUGMEMLEAKS);
-
-	return(block);
-}
-
-
-
-void tracked_free(void *ptr) {
-	struct igheap *thisheap;
-	struct igheap *trash;
-
-	free(ptr);
-
-	if (igheap == NULL) return;
-	begin_critical_section(S_DEBUGMEMLEAKS);
-	for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
-		if (thisheap->next != NULL) {
-			if (thisheap->next->block == ptr) {
-				trash = thisheap->next;
-				thisheap->next = thisheap->next->next;
-				free(trash);
-			}
-		}
-	}
-	if (igheap->block == ptr) {
-		trash = igheap;
-		igheap = igheap->next;
-		free(trash);
-	}
-	end_critical_section(S_DEBUGMEMLEAKS);
-}
-
-char *tracked_strdup(const char *s, char *file, int line) {
-	char *ptr;
-
-	if (s == NULL) return(NULL);
-	ptr = tracked_malloc(strlen(s) + 1, file, line);
-	if (ptr == NULL) return(NULL);
-	strncpy(ptr, s, strlen(s));
-	return(ptr);
-}
-
-void dump_heap(void) {
-	struct igheap *thisheap;
-
-	for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
-		CtdlLogPrintf(CTDL_CRIT, "UNFREED: %30s : %d\n",
-			thisheap->file, thisheap->line);
-	}
-}
-
-#endif /*  DEBUG_MEMORY_LEAKS */