1 files changed, 123 insertions, 0 deletions
diff --git a/common/core/Logger_file.cxx b/common/core/Logger_file.cxx
new file mode 100644
index 00000000..b8c72270
--- /dev/null
+++ b/common/core/Logger_file.cxx
@@ -0,0 +1,123 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+// -=- Logger_file.cxx - Logger instance for a file
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <core/Logger_file.h>
+
+using namespace core;
+
+Logger_File::Logger_File(const char* loggerName)
+  : Logger(loggerName), indent(13), width(79), m_file(nullptr),
+    m_lastLogTime(0)
+{
+  m_filename[0] = '\0';
+}
+
+Logger_File::~Logger_File()
+{
+  closeFile();
+}
+
+void Logger_File::write(int /*level*/, const char *logname, const char *message)
+{
+  if (!m_file) {
+    if (m_filename[0] == '\0')
+      return;
+    char bakFilename[PATH_MAX];
+    if (snprintf(bakFilename, sizeof(bakFilename),
+                 "%s.bak", m_filename) >= (int)sizeof(bakFilename)) {
+      remove(m_filename);
+    } else {
+      remove(bakFilename);
+      rename(m_filename, bakFilename);
+    }
+    m_file = fopen(m_filename, "w+");
+    if (!m_file) return;
+  }
+
+  time_t current = time(nullptr);
+  if (current != m_lastLogTime) {
+    m_lastLogTime = current;
+    fprintf(m_file, "\n%s", ctime(&m_lastLogTime));
+  }
+
+  fprintf(m_file," %s:", logname);
+  int column = strlen(logname) + 2;
+  if (column < indent) {
+    fprintf(m_file,"%*s",indent-column,"");
+    column = indent;
+  }
+  while (true) {
+    const char* s = strchr(message, ' ');
+    int wordLen;
+    if (s) wordLen = s-message;
+    else wordLen = strlen(message);
+
+    if (column + wordLen + 1 > width) {
+      fprintf(m_file,"\n%*s",indent,"");
+      column = indent;
+    }
+    fprintf(m_file," %.*s",wordLen,message);
+    column += wordLen + 1;
+    message += wordLen + 1;
+    if (!s) break;
+  }
+  fprintf(m_file,"\n");
+  fflush(m_file);
+}
+
+void Logger_File::setFilename(const char* filename)
+{
+  closeFile();
+  m_filename[0] = '\0';
+  if (strlen(filename) >= sizeof(m_filename))
+    return;
+  strcpy(m_filename, filename);
+}
+
+void Logger_File::setFile(FILE* file)
+{
+  closeFile();
+  m_file = file;
+}
+
+void Logger_File::closeFile()
+{
+  if (m_file) {
+    fclose(m_file);
+    m_file = nullptr;
+  }
+}
+
+static Logger_File logger("file");
+
+bool core::initFileLogger(const char* filename)
+{
+  logger.setFilename(filename);
+  logger.registerLogger();
+  return true;
+}