1 files changed, 108 insertions, 0 deletions
diff --git a/netcon/common.inc.c b/netcon/common.inc.c
new file mode 100644
index 00000000..60d2ab3b
--- /dev/null
+++ b/netcon/common.inc.c
@@ -0,0 +1,108 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <stdio.h>
+#include <netdb.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <fcntl.h>
+#include <sys/syscall.h>
+
+#ifndef _COMMON_H
+#define _COMMON_H  1
+
+#define DEBUG_LEVEL     3
+
+#define MSG_WARNING     4
+#define MSG_ERROR       1 // Errors
+#define MSG_INFO        2 // Information which is generally useful to any user
+#define MSG_DEBUG       3 // Information which is only useful to someone debugging
+#define MSG_DEBUG_EXTRA 4 // If nothing in your world makes sense
+
+#ifdef NETCON_INTERCEPT
+
+void print_addr(struct sockaddr *addr)
+{
+  char *s = NULL;
+  switch(addr->sa_family) {
+      case AF_INET: {
+          struct sockaddr_in *addr_in = (struct sockaddr_in *)addr;
+          s = malloc(INET_ADDRSTRLEN);
+          inet_ntop(AF_INET, &(addr_in->sin_addr), s, INET_ADDRSTRLEN);
+          break;
+      }
+      case AF_INET6: {
+          struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)addr;
+          s = malloc(INET6_ADDRSTRLEN);
+          inet_ntop(AF_INET6, &(addr_in6->sin6_addr), s, INET6_ADDRSTRLEN);
+          break;
+      }
+      default:
+          break;
+  }
+  fprintf(stderr, "IP address: %s\n", s);
+  free(s);
+}
+#endif
+
+#ifdef NETCON_SERVICE
+  namespace ZeroTier {
+#endif
+  void dwr(int level, const char *fmt, ... )
+  {
+    if(level > DEBUG_LEVEL)
+        return;
+    int saveerr;
+    saveerr = errno;
+    va_list ap;
+    va_start(ap, fmt);
+  #ifdef VERBOSE // So we can cut out some clutter in the strace output while debugging
+    char timestring[20];
+    time_t timestamp;
+    timestamp = time(NULL);
+    strftime(timestring, sizeof(timestring), "%H:%M:%S", localtime(&timestamp));
+    pid_t tid = syscall(SYS_gettid);
+    fprintf(stderr, "%s [tid=%7d] ", timestring, tid);
+  #endif
+    vfprintf(stderr, fmt, ap);
+    fflush(stderr);
+
+    errno = saveerr;
+    va_end(ap);
+  }
+#ifdef NETCON_SERVICE
+}
+#endif
+
+#endif