clean up logging, allow user to specify log files

If DebugLogFile is specified, log to it at -l debug
If LogFile is specified, log to it at the -l from the commandline
  (default info)
If no LogFile *and* not a Daemon, then log to stdout.
Make conn->s = -1 by default (this might break things)
When kill -USR1, prefer to log at INFO, but make sure they always see it.


svn:r596

src/common/log.c

@@ -75,11 +75,6 @@ logv(int severity, const char *funcname, const char *format, va_list ap)
   assert(format);
   if (severity < loglevel)
     return;
-  if (!logfiles) {
-    /* XXX This is a temporary measure until we get configuration support
-       for logfiles. */
-    add_stream_log(loglevel, "<stdout>", stdout);
-  }
   for (lf = logfiles; lf; lf = lf->next) {
     if (severity < lf->loglevel || severity > lf->max_loglevel)
       continue;

src/or/config.c

@@ -151,6 +151,8 @@ static void config_assign(or_options_t *options, struct config_line *list) {
 
     /* string options */
     config_compare(list, "LogLevel",       CONFIG_TYPE_STRING, &options->LogLevel) ||
+    config_compare(list, "LogFile",        CONFIG_TYPE_STRING, &options->LogFile) ||
+    config_compare(list, "DebugLogFile",   CONFIG_TYPE_STRING, &options->DebugLogFile) ||
     config_compare(list, "DataDirectory",  CONFIG_TYPE_STRING, &options->DataDirectory) ||
     config_compare(list, "RouterFile",     CONFIG_TYPE_STRING, &options->RouterFile) ||
     config_compare(list, "PidFile",        CONFIG_TYPE_STRING, &options->PidFile) ||
@@ -171,10 +173,10 @@ static void config_assign(or_options_t *options, struct config_line *list) {
     config_compare(list, "NumCpus",         CONFIG_TYPE_INT, &options->NumCpus) ||
 
     config_compare(list, "OnionRouter",     CONFIG_TYPE_BOOL, &options->OnionRouter) ||
-    config_compare(list, "Daemon",          CONFIG_TYPE_BOOL, &options->Daemon) ||
     config_compare(list, "TrafficShaping",  CONFIG_TYPE_BOOL, &options->TrafficShaping) ||
     config_compare(list, "LinkPadding",     CONFIG_TYPE_BOOL, &options->LinkPadding) ||
     config_compare(list, "IgnoreVersion",   CONFIG_TYPE_BOOL, &options->IgnoreVersion) ||
+    config_compare(list, "RunAsDaemon",     CONFIG_TYPE_BOOL, &options->RunAsDaemon) ||
 
     /* float options */
     config_compare(list, "CoinWeight",     CONFIG_TYPE_DOUBLE, &options->CoinWeight)
@@ -201,7 +203,7 @@ int getconfig(int argc, char **argv, or_options_t *options) {
   memset(options,0,sizeof(or_options_t));
   options->LogLevel = "info";
   options->ExitPolicy = "reject 127.0.0.1:*,reject 18.244.0.188:25,accept *:*";
-  options->loglevel = LOG_DEBUG;
+  options->loglevel = LOG_INFO;
   options->PidFile = "tor.pid";
   options->DataDirectory = NULL;
   options->CoinWeight = 0.1;

src/or/connection.c

@@ -78,6 +78,7 @@ connection_t *connection_new(int type) {
 
   conn = (connection_t *)tor_malloc(sizeof(connection_t));
   memset(conn,0,sizeof(connection_t)); /* zero it out to start */
+  conn->s = -1; /* give it a default of 'not used' */
 
   conn->type = type;
   if(!connection_is_listener(conn)) { /* listeners never use their buf */
@@ -117,7 +118,7 @@ void connection_free(connection_t *conn) {
   if (conn->nickname) 
     free(conn->nickname);
 
-  if(conn->s > 0) {
+  if(conn->s >= 0) {
     log_fn(LOG_INFO,"closing fd %d.",conn->s);
     close(conn->s);
   }

src/or/connection_edge.c

@@ -557,7 +557,7 @@ static int connection_ap_handshake_socks_reply(connection_t *conn, char *reply,
   n_stream->address = tor_strdup(cell->payload + RELAY_HEADER_SIZE + STREAM_ID_SIZE);
   n_stream->port = atoi(colon+1);
   n_stream->state = EXIT_CONN_STATE_RESOLVING;
-  n_stream->s = -1; /* not yet valid */
+  /* leave n_stream->s at -1, because it's not yet valid */
   n_stream->package_window = STREAMWINDOW_START;
   n_stream->deliver_window = STREAMWINDOW_START;
   if(connection_add(n_stream) < 0) { /* no space, forget it */

src/or/main.c

@@ -601,7 +601,8 @@ static int do_main_loop(void) {
   for(;;) {
 #ifndef MS_WIN32 /* do signal stuff only on unix */
     if(please_dumpstats) {
-      dumpstats(LOG_INFO);
+      /* prefer to log it at INFO, but make sure we always see it */
+      dumpstats(options.loglevel>LOG_INFO ? options.loglevel : LOG_INFO);
       please_dumpstats = 0;
     }
     if(please_reset) {
@@ -774,14 +775,21 @@ int tor_main(int argc, char *argv[]) {
     log_fn(LOG_ERR,"Reading config file failed. exiting.");
     return -1;
   }
-  log_set_severity(options.loglevel);     /* assign logging severity level from options */
+  log_set_severity(options.loglevel); /* assign logging severity level from options */
+  if(options.DebugLogFile)
+    add_file_log(LOG_DEBUG, options.DebugLogFile);
+  if(options.LogFile)
+    add_file_log(options.loglevel, options.LogFile);
+  if(!options.LogFile && !options.RunAsDaemon)
+    add_stream_log(options.loglevel, "<stdout>", stdout);
+
   global_read_bucket = options.TotalBandwidth; /* start it at 1 second of traffic */
   stats_prev_global_read_bucket = global_read_bucket;
 
   /* write our pid to the pid file */
   write_pidfile(options.PidFile);
 
-  if(options.Daemon)
+  if(options.RunAsDaemon)
     daemonize();
 
   if(options.OnionRouter) { /* only spawn dns handlers if we're a router */

src/or/or.h

@@ -416,6 +416,8 @@ typedef struct circuit_t circuit_t;
 
 typedef struct {
    char *LogLevel;
+   char *LogFile;
+   char *DebugLogFile;
    char *DataDirectory;
    char *RouterFile;
    char *Nickname;
@@ -423,7 +425,6 @@ typedef struct {
    char *PidFile;
    char *ExitPolicy;
    double CoinWeight;
-   int Daemon;
    int ORPort;
    int APPort;
    int DirPort;
@@ -432,6 +433,7 @@ typedef struct {
    int TrafficShaping;
    int LinkPadding;
    int IgnoreVersion;
+   int RunAsDaemon;
    int DirRebuildPeriod;
    int DirFetchPostPeriod;
    int KeepalivePeriod;