Drop packets forwarded via TCP if they are too big (CVE-2013-1428).

[tinc] / lib / dropin.c

diff --git a/lib/dropin.c b/lib/dropin.c
index 572617c..eb17aca 100644 (file)
--- a/lib/dropin.c
+++ b/lib/dropin.c
@@ -1,7 +1,7 @@
 /*
     dropin.c -- a set of drop-in replacements for libc functions
     Copyright (C) 2000-2005 Ivo Timmermans,
-                  2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2011 Guus Sliepen <guus@tinc-vpn.org>
 
     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
@@ -36,8 +36,7 @@
   Unless the argument noclose is non-zero, daemon() will redirect
   standard input, standard output and standard error to /dev/null.
 */
-int daemon(int nochdir, int noclose)
-{
+int daemon(int nochdir, int noclose) {
 #ifdef HAVE_FORK
        pid_t pid;
        int fd;
@@ -95,8 +94,7 @@ int daemon(int nochdir, int noclose)
   current directory name.  If the environment variable PWD is set, and
   its value is correct, then that value will be returned.
 */
-char *get_current_dir_name(void)
-{
+char *get_current_dir_name(void) {
        size_t size;
        char *buf;
        char *r;
@@ -165,3 +163,11 @@ int gettimeofday(struct timeval *tv, void *tz) {
        return 0;
 }
 #endif
+
+#ifndef HAVE_USLEEP
+int usleep(long long usec) {
+       struct timeval tv = {usec / 1000000, (usec / 1000) % 1000};
+       select(0, NULL, NULL, NULL, &tv);
+       return 0;
+}
+#endif