From bde5dd66713cec177846627bf026d8bcddbb41a8 Mon Sep 17 00:00:00 2001
From: Jay Sorg <jay.sorg@gmail.com>
Date: Sat, 26 May 2012 17:24:04 -0700
Subject: [PATCH] added g_close_wait_obj and size parameter to
 g_write_ip_address

---
 common/os_calls.c  | 43 +++++++++++++++++++++++++++++--------------
 common/os_calls.h  |  4 +++-
 libxrdp/xrdp_rdp.c |  5 ++++-
 xrdp/xrdp.c        |  4 ++--
 xrdp/xrdp_listen.c |  2 +-
 5 files changed, 39 insertions(+), 19 deletions(-)

diff --git a/common/os_calls.c b/common/os_calls.c
index 466cdbdf..65c6808a 100644
--- a/common/os_calls.c
+++ b/common/os_calls.c
@@ -562,31 +562,33 @@ g_tcp_accept(int sck)
 
 /*****************************************************************************/
 void APP_CC
-g_write_ip_address(int rcv_sck, char* ip_address)
+g_write_ip_address(int rcv_sck, char* ip_address, int bytes)
 {
   struct sockaddr_in s;
   struct in_addr in;
   int len;
   int ip_port;
+  int ok;
 
-  memset(&s,0,sizeof(&s));
+  ok = 0;
+  memset(&s, 0, sizeof(s));
   len = sizeof(s);
-  getpeername(rcv_sck,(struct sockaddr*)&s, &len);
-
-  memset(&in,0,sizeof(in));
-  in.s_addr = s.sin_addr.s_addr;
-
-  ip_port = ntohs(s.sin_port);
-  
-  if (ip_port != 0)
+  if (getpeername(rcv_sck,(struct sockaddr*)&s, &len) == 0)
   {
-    sprintf(ip_address, "%s:%d - socket: %d", inet_ntoa(in), ip_port, rcv_sck);
+    memset(&in, 0, sizeof(in));
+    in.s_addr = s.sin_addr.s_addr;
+    ip_port = ntohs(s.sin_port);
+    if (ip_port != 0)
+    {
+      ok = 1;
+      snprintf(ip_address, bytes, "%s:%d - socket: %d", inet_ntoa(in),
+              ip_port, rcv_sck);
+    }
   }
-  else
+  if (!ok)
   {
-    sprintf(ip_address, "NULL:NULL - socket: %d", rcv_sck);
+    snprintf(ip_address, bytes, "NULL:NULL - socket: %d", rcv_sck);
   }
-
 }
 
 /*****************************************************************************/
@@ -995,6 +997,19 @@ g_delete_wait_obj(tbus obj)
 #endif
 }
 
+/*****************************************************************************/
+/* returns error */
+/* close but do not delete the wait obj, used after fork */
+int APP_CC
+g_close_wait_obj(tbus obj)
+{
+#ifdef _WIN32
+#else
+  close((int)obj);
+#endif
+  return 0;
+}
+
 /*****************************************************************************/
 /* returns error */
 int APP_CC
diff --git a/common/os_calls.h b/common/os_calls.h
index 5c7d848e..009a9079 100644
--- a/common/os_calls.h
+++ b/common/os_calls.h
@@ -104,7 +104,7 @@ g_tcp_can_recv(int sck, int millis);
 int APP_CC
 g_tcp_select(int sck1, int sck2);
 void APP_CC
-g_write_ip_address(int rcv_sck, char* ip_address);
+g_write_ip_address(int rcv_sck, char* ip_address, int bytes);
 void APP_CC
 g_sleep(int msecs);
 tbus APP_CC
@@ -122,6 +122,8 @@ g_is_wait_obj_set(tbus obj);
 int APP_CC
 g_delete_wait_obj(tbus obj);
 int APP_CC
+g_close_wait_obj(tbus obj);
+int APP_CC
 g_obj_wait(tbus* read_objs, int rcount, tbus* write_objs, int wcount,
            int mstimeout);
 void APP_CC
diff --git a/libxrdp/xrdp_rdp.c b/libxrdp/xrdp_rdp.c
index bdbeed48..f25ec274 100644
--- a/libxrdp/xrdp_rdp.c
+++ b/libxrdp/xrdp_rdp.c
@@ -136,6 +136,7 @@ struct xrdp_rdp* APP_CC
 xrdp_rdp_create(struct xrdp_session* session, struct trans* trans)
 {
   struct xrdp_rdp* self = (struct xrdp_rdp *)NULL;
+  int bytes;
 
   DEBUG(("in xrdp_rdp_create"));
   self = (struct xrdp_rdp*)g_malloc(sizeof(struct xrdp_rdp), 1);
@@ -153,7 +154,9 @@ xrdp_rdp_create(struct xrdp_session* session, struct trans* trans)
   self->client_info.cache2_size = 1024;
   self->client_info.cache3_entries = 262;
   self->client_info.cache3_size = 4096;
-  g_write_ip_address(trans->sck, self->client_info.client_ip);  /* load client ip info */
+  /* load client ip info */
+  bytes = sizeof(self->client_info.client_ip) - 1;
+  g_write_ip_address(trans->sck, self->client_info.client_ip, bytes);
 #if defined(XRDP_FREERDP1)
   self->mppc_enc = mppc_enc_new(PROTO_RDP_50);
 #endif
diff --git a/xrdp/xrdp.c b/xrdp/xrdp.c
index d43870f2..d88fd677 100644
--- a/xrdp/xrdp.c
+++ b/xrdp/xrdp.c
@@ -111,8 +111,8 @@ xrdp_child_fork(void)
   char text[256];
 
   /* close, don't delete these */
-  g_tcp_close((int)g_term_event);
-  g_tcp_close((int)g_sync_event);
+  g_close_wait_obj(g_term_event);
+  g_close_wait_obj(g_sync_event);
   pid = g_getpid();
   g_snprintf(text, 255, "xrdp_%8.8x_main_term", pid);
   g_term_event = g_create_wait_obj(text);
diff --git a/xrdp/xrdp_listen.c b/xrdp/xrdp_listen.c
index dd85d245..36980b15 100644
--- a/xrdp/xrdp_listen.c
+++ b/xrdp/xrdp_listen.c
@@ -204,7 +204,7 @@ xrdp_listen_fork(struct xrdp_listen* self, struct trans* server_trans)
     xrdp_child_fork();
     /* recreate the process done wait object, not used in fork mode */
     /* close, don't delete this */
-    g_tcp_close((int)(self->pro_done_event));
+    g_close_wait_obj(self->pro_done_event);
     xrdp_listen_create_pro_done(self);
     /* delete listener, child need not listen */
     trans_delete(self->listen_trans);