1 files changed, 82 insertions, 0 deletions
diff --git a/src/log.c b/src/log.c
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index 00000000..6ec5a8ea
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+++ b/src/log.c
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+/*
+ * log.c - logging and debugging functions
+ *
+ * This file is part of the SSH Library
+ *
+ * Copyright (c) 2008      by Aris Adamantiadis
+ *
+ * The SSH Library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The SSH Library 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the SSH Library; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "libssh/priv.h"
+#include "libssh/session.h"
+
+/**
+ * @defgroup libssh_log The SSH logging functions.
+ * @ingroup libssh
+ *
+ * Logging functions for debugging and problem resolving.
+ *
+ * @{
+ */
+
+/**
+ * @brief Log a SSH event.
+ *
+ * @param session       The SSH session.
+ *
+ * @param verbosity     The verbosity of the event.
+ *
+ * @param format        The format string of the log entry.
+ */
+void ssh_log(ssh_session session, int verbosity, const char *format, ...) {
+  char buffer[1024];
+  char indent[256];
+  int min;
+  va_list va;
+
+  if (verbosity <= session->log_verbosity) {
+    va_start(va, format);
+    vsnprintf(buffer, sizeof(buffer), format, va);
+    va_end(va);
+
+    if (session->callbacks && session->callbacks->log_function) {
+      session->callbacks->log_function(session, verbosity, buffer,
+          session->callbacks->userdata);
+    } else if (verbosity == SSH_LOG_FUNCTIONS) {
+      if (session->log_indent > 255) {
+        min = 255;
+      } else {
+        min = session->log_indent;
+      }
+
+      memset(indent, ' ', min);
+      indent[min] = '\0';
+
+      fprintf(stderr, "[func] %s%s\n", indent, buffer);
+    } else {
+      fprintf(stderr, "[%d] %s\n", verbosity, buffer);
+    }
+  }
+}
+
+/** @} */
+
+/* vim: set ts=4 sw=4 et cindent: */