Added intercept build file and sources

2025-07-30 11:39:29 -07:00 · 2015-10-09 15:41:16 -04:00 · 2015-10-09 15:41:16 -04:00 · e3ec000e93
commit e3ec000e93
parent 769bad3320
11 changed files with 746 additions and 5 deletions
--- a/netcon/common.c
+++ b/netcon/common.c
@ -0,0 +1,130 @@
+/*
+ * 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 "common.h"
+
+void dwr(const char *fmt, ...);
+
+/* defined in intercept and service */
+extern FILE* logfile;
+extern char* logfilename;
+//extern flog = -1;
+
+extern pthread_mutex_t loglock;
+
+
+
+#ifdef NETCON_SERVICE
+   void dwr(int, const char *fmt, ...);
+
+   void dwr(const char *fmt, ...)
+   {
+      int saveerr;
+      va_list ap;
+      va_start(ap, fmt);
+      saveerr = errno;
+      dwr(-1, fmt, ap);
+      errno = saveerr;
+      va_end(ap);
+   }
+
+   void dwr(int pid, const char *fmt, ...)
+#endif
+#ifdef NETCON_INTERCEPT
+   void dwr(const char *fmt, ...)
+#endif
+{
+	va_list ap;
+	int saveerr;
+	char timestring[20];
+	time_t timestamp;
+
+	timestamp = time(NULL);
+	strftime(timestring, sizeof(timestring), "%H:%M:%S", localtime(&timestamp));
+
+  if(logfile)
+    fprintf(logfile, "%s ", timestring);
+  fprintf(stderr, "%s ", timestring);
+
+#ifdef NETCON_SERVICE
+	if(ns != NULL)
+	{
+    size_t num_intercepts = ns->intercepts.size();
+    size_t num_connections = ns->connections.size();
+    if(logfile)
+      fprintf(logfile, "[i/c/tid=%3lu|%3lu|%7d]", num_intercepts, num_connections, pid);
+    fprintf(stderr, "[i/c/tid=%3lu|%3lu|%7d]", num_intercepts, num_connections, pid);
+	}
+	else {
+    if(logfile)
+      fprintf(logfile, "[i/c/tid=%3d|%3d|%7d]", 0, 0, -1);
+    fprintf(stderr, "[i/c/tid=%3d|%3d|%7d]", 0, 0, -1);
+  }
+
+#endif
+
+#ifdef NETCON_INTERCEPT
+  //pthread_mutex_lock(&loglock);
+  int pid = getpid();
+  if(logfile)
+	  fprintf(logfile, "[tid=%7d]", pid);
+  fprintf(stderr, "[tid=%7d]", pid);
+  //pthread_mutex_unlock(&loglock);
+#endif
+
+	if(logfile)
+    fputs(" ", logfile);
+  fputs(" ", stderr);
+
+  /* logfile */
+	va_start(ap, fmt);
+	saveerr = errno;
+	if(logfile){
+    vfprintf(logfile, fmt, ap);
+    fflush(logfile);
+  }
+  va_end(ap);
+
+  /* console */
+  va_start(ap, fmt);
+  vfprintf(stderr, fmt, ap);
+	fflush(stderr);
+  errno = saveerr;
+	va_end(ap);
+}