From f8b361e5bcea212fd0635df1b199b2016b14f508 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Sun, 28 Dec 2008 21:27:35 +0000
Subject: some cleanup

---
 src/cipher.c    | 8 ++++++--
 src/linux/tun.c | 6 ++++--
 src/options.c   | 3 +++
 src/uanytun.c   | 2 ++
 src/udp.c       | 3 +++
 5 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/src/cipher.c b/src/cipher.c
index 02960e4..c473fbc 100644
--- a/src/cipher.c
+++ b/src/cipher.c
@@ -79,8 +79,10 @@ void cipher_set_key(cipher_t* c, u_int8_t* key, u_int32_t len)
   if(c->key_.buf_)
     free(c->key_.buf_);
   c->key_.buf_ = malloc(len);
-  if(!c->key_.buf_)
+  if(!c->key_.buf_) {
+    c->key_.buf_.length_ = 0;
     return;
+  }
   memcpy(c->key_.buf_, key, len);
   c->key_.length_ = len;
 }
@@ -95,8 +97,10 @@ void cipher_set_salt(cipher_t* c, u_int8_t* salt, u_int32_t len)
   if(c->salt_.buf_)
     free(c->salt_.buf_);
   c->salt_.buf_ = malloc(len);
-  if(!c->salt_.buf_)
+  if(!c->salt_.buf_) {
+    c->salt_.length_ = 0;
     return;
+  }
   memcpy(c->salt_.buf_, salt, len);
   c->salt_.length_ = len;
 }
diff --git a/src/linux/tun.c b/src/linux/tun.c
index 66485fb..b24f48b 100644
--- a/src/linux/tun.c
+++ b/src/linux/tun.c
@@ -54,10 +54,12 @@
 
 void tun_init(tun_device_t** dev, const char* dev_name, const char* dev_type, const char* ifcfg_lp, const char* ifcfg_rnmp)
 {
-  if(!dev) return;
+  if(!dev) 
+    return;
  
   *dev = malloc(sizeof(tun_device_t));
-  if(!*dev) return;
+  if(!*dev) 
+    return;
 
   tun_conf(*dev, dev_name, dev_type, ifcfg_lp, ifcfg_rnmp, 1400);
 
diff --git a/src/options.c b/src/options.c
index d2540b1..21ff0bc 100644
--- a/src/options.c
+++ b/src/options.c
@@ -132,6 +132,9 @@ int options_parse(options_t** opt, int argc, char* argv[])
     return -1;
 
   *opt = malloc(sizeof(options_t));
+  if(!*opt)
+    return -1;
+
   options_default(*opt);
 
   if((*opt)->progname_)
diff --git a/src/uanytun.c b/src/uanytun.c
index cebfd39..a7e1f7d 100644
--- a/src/uanytun.c
+++ b/src/uanytun.c
@@ -130,6 +130,8 @@ int main(int argc, char* argv[])
   log_init("uanytun", DAEMON);
   signal_init();
 
+  log_printf(NOTICE, "just started...");
+
   options_t* opt;
   int ret = options_parse(&opt, argc, argv);
   if(ret) {
diff --git a/src/udp.c b/src/udp.c
index a6ffabf..493d772 100644
--- a/src/udp.c
+++ b/src/udp.c
@@ -50,6 +50,7 @@ void udp_init(udp_socket_t** sock, const char* local_addr, const char* port)
   *sock = malloc(sizeof(udp_socket_t));
   if(!*sock)
     return;
+
   memset(&((*sock)->local_end_), 0, sizeof((*sock)->local_end_));
   memset(&((*sock)->remote_end_), 0, sizeof((*sock)->local_end_));
 
@@ -143,6 +144,8 @@ char* udp_endpoint_to_string(udp_endpoint_t e)
     return "";
   }
   addrstr = malloc(addrstr_len);
+  if(!addrstr)
+    return NULL;
   inet_ntop (((struct sockaddr *)&e)->sa_family, ptr, addrstr, addrstr_len);
   char* ret;
   asprintf(&ret, "%s:%d", addrstr, port);
-- 
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