1 files changed, 123 insertions, 0 deletions
diff --git a/src/log.c b/src/log.c
new file mode 100644
index 0000000..e81257b
--- /dev/null
+++ b/src/log.c
@@ -0,0 +1,123 @@
+/*
+ *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ *  log.c: Logger functions.
+ *
+ *  Copyright (C) 2002 by the past and present ircd coders, and others.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *  USA
+ *
+ *  $Id$
+ */
+
+#include "stdinc.h"
+
+#include "log.h"
+#include "irc_string.h"
+#include "ircd.h"
+#include "conf.h"
+#include "s_misc.h"
+
+
+static struct {
+  char path[PATH_MAX + 1];
+  size_t size;
+  FILE *file;
+} log_type_table[LOG_TYPE_LAST];
+
+
+int
+log_add_file(enum log_type type, size_t size, const char *path)
+{
+  if (log_type_table[type].file)
+    fclose(log_type_table[type].file);
+
+  strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
+  log_type_table[type].size = size;
+
+  return (log_type_table[type].file = fopen(path, "a")) != NULL;
+}
+
+void
+log_close_all(void)
+{
+  unsigned int type = 0;
+
+  while (++type < LOG_TYPE_LAST)
+  {
+    if (log_type_table[type].file == NULL)
+      continue;
+
+    fclose(log_type_table[type].file);
+    log_type_table[type].file = NULL;
+  }
+}
+
+static int
+log_exceed_size(unsigned int type)
+{
+  struct stat sb;
+
+  if (!log_type_table[type].size)
+    return 0;
+
+  if (stat(log_type_table[type].path, &sb) < 0)
+    return -1;
+
+  return (size_t)sb.st_size > log_type_table[type].size;
+}
+
+static void 
+log_write(enum log_type type, const char *message)
+{
+  char buf[IRCD_BUFSIZE];
+
+  strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z]", localtime(&CurrentTime));
+
+  fprintf(log_type_table[type].file, "%s %s\n", buf, message);
+  fflush(log_type_table[type].file);
+}
+
+void
+ilog(enum log_type type, const char *fmt, ...)
+{
+  char buf[LOG_BUFSIZE];
+  va_list args;
+
+  if (!log_type_table[type].file || !ConfigLoggingEntry.use_logging)
+    return;
+
+  va_start(args, fmt);
+  vsnprintf(buf, sizeof(buf), fmt, args);
+  va_end(args);
+
+  log_write(type, buf);
+
+  if (log_exceed_size(type) <= 0)
+    return;
+
+  snprintf(buf, sizeof(buf), "Rotating logfile %s",
+           log_type_table[type].path);
+  log_write(type, buf);
+
+  fclose(log_type_table[type].file);
+  log_type_table[type].file = NULL;
+
+  snprintf(buf, sizeof(buf), "%s.old", log_type_table[type].path);
+  unlink(buf);
+  rename(log_type_table[type].path, buf);
+
+  log_add_file(type, log_type_table[type].size, log_type_table[type].path);
+}