Add log cycling on HUP signals. Currently reopens log files in append mode

so allows for continuing the log, or cycling just one log.   log filename
changes work as well.

svn path=/trunk/icecast/; revision=5129

src/event.c

@@ -39,6 +39,7 @@ void event_config_read(void *arg)
     else {
         config_clear(config);
         config_set_config(&new_config);
+        restart_logging ();
 
         config_release_config();
     }

src/logging.c

 #include <stdio.h>
 #include <time.h>
+#include <string.h>
 
 #include "thread.h"
 #include "httpp.h"
@@ -9,6 +10,8 @@
 #include "refbuf.h"
 #include "client.h"
 
+#include "os.h"
+#include "config.h"
 #include "logging.h"
 
 #ifdef _WIN32
@@ -69,7 +72,24 @@ void logging_access(client_t *client)
 
 
 
-
-
-
-
+void restart_logging ()
+{
+    ice_config_t *config = config_get_config_unlocked();
+
+    if (strcmp (config->error_log, "-"))
+    {
+        char fn_error[FILENAME_MAX];
+        snprintf (fn_error, FILENAME_MAX, "%s%s%s", config->log_dir, PATH_SEPARATOR, config->error_log);
+        log_set_filename (errorlog, fn_error);
+        log_set_level (errorlog, config->loglevel);
+        log_reopen (errorlog);
+    }
+
+    if (strcmp (config->access_log, "-"))
+    {
+        char fn_error[FILENAME_MAX];
+        snprintf (fn_error, FILENAME_MAX, "%s%s%s", config->log_dir, PATH_SEPARATOR, config->access_log);
+        log_set_filename (accesslog, fn_error);
+        log_reopen (accesslog);
+    }
+}

src/logging.h

@@ -75,6 +75,7 @@ extern int accesslog;
 #define LOGGING_FORMAT_CLF "%d/%b/%Y:%H:%M:%S %z"
 
 void logging_access(client_t *client);
+void restart_logging (void);
 
 #endif  /* __LOGGING_H__ */