implemented logging to system logger

accel-pppd/accel-ppp.conf

 [modules]
 #path=/usr/local/lib/accel-ppp
 log_file
+#log_syslog
 #log_tcp
 #log_pgsql
 pptp
@@ -108,6 +109,7 @@ log-file=/var/log/accel-ppp/accel-ppp.log
 log-emerg=/var/log/accel-ppp/emerg.log
 log-fail-file=/var/log/accel-ppp/auth-fail.log
 #log-debug=/dev/stdout
+#syslog=accel-pppd,daemon
 #log-tcp=127.0.0.1:3000
 copy=1
 #color=1
@@ -115,7 +117,6 @@ copy=1
 #per-session-dir=per_session
 #per-session=1
 level=3
-#log-tcp=127.0.0.1:3000
 
 [log-pgsql]
 conninfo=user=log

accel-pppd/accel-ppp.conf.5

@@ -363,6 +363,10 @@ Path to file to write authentication failed session log.
 .BI "log-tcp=" x.x.x.x:port
 Send logs to specified host.
 .TP
+.BI "syslog=" ident[,facility]
+Send logs to system logger.
+Facility may be: daemon, local0-local7 or numeric value.
+.TP
 .BI "copy=" n
 If this options is given and greater then zero logging engine will duplicate session log in general log.
 (Useful when per-session/per-user logs are not used)

accel-pppd/logs/CMakeLists.txt

-ADD_LIBRARY(log_file SHARED log_file.c)
-TARGET_LINK_LIBRARIES(log_file rt)
+IF(NOT DEFINED LOG_FILE)
+	SET(LOG_FILE TRUE)
+ENDIF(NOT DEFINED LOG_FILE)
 
-ADD_LIBRARY(log_tcp SHARED log_tcp.c)
+IF(NOT DEFINED LOG_TCP)
+	SET(LOG_TCP TRUE)
+ENDIF(NOT DEFINED LOG_TCP)
 
-INSTALL(TARGETS log_file log_tcp
-	LIBRARY DESTINATION lib/accel-ppp
-)
+IF(NOT DEFINED LOG_SYSLOG)
+	SET(LOG_SYSLOG TRUE)
+ENDIF(NOT DEFINED LOG_SYSLOG)
+
+
+IF(LOG_FILE)
+	ADD_LIBRARY(log_file SHARED log_file.c)
+	TARGET_LINK_LIBRARIES(log_file rt)
+	INSTALL(TARGETS log_file
+		LIBRARY DESTINATION lib/accel-ppp
+	)
+ENDIF(LOG_FILE)
+
+IF(LOG_TCP)
+	ADD_LIBRARY(log_tcp SHARED log_tcp.c)
+	INSTALL(TARGETS log_tcp
+		LIBRARY DESTINATION lib/accel-ppp
+	)
+ENDIF(LOG_TCP)
+
+IF(LOG_SYSLOG)
+	ADD_LIBRARY(log_syslog SHARED log_syslog.c)
+	INSTALL(TARGETS log_syslog
+		LIBRARY DESTINATION lib/accel-ppp
+	)
+ENDIF(LOG_SYSLOG)
 
 IF(LOG_PGSQL)
 	ADD_LIBRARY(log_pgsql SHARED log_pgsql.c)

accel-pppd/triton/triton.c

@@ -171,6 +171,7 @@ cont:
 
 		if (thread->ctx->need_free) {
 			log_debug2("- context %p removed\n", thread->ctx);
+			thread->ctx->ud->tpd = NULL;
 			mempool_free(thread->ctx);
 		}