fix for https://bugzilla.redhat.com/show_bug.cgi?id=782619

common/os_calls.c

@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2004-2010 Jay Sorg
+   Copyright (c) 2004-2012 Jay Sorg
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -79,9 +79,11 @@ extern char** environ;
 #define INADDR_NONE ((unsigned long)-1)
 #endif
 
+static char g_temp_base[64] = "";
+
 /*****************************************************************************/
 void APP_CC
-g_init(void)
+g_init(const char* app_name)
 {
 #if defined(_WIN32)
   WSADATA wsadata;
@@ -89,6 +91,17 @@ g_init(void)
   WSAStartup(2, &wsadata);
 #endif
   setlocale(LC_CTYPE, "");
+  if (app_name != 0)
+  {
+    if (app_name[0] == 0)
+    {
+      snprintf(g_temp_base, sizeof(g_temp_base), "/tmp/%s-XXXXXX", app_name);
+      if (mkdtemp(g_temp_base) == 0)
+      {
+        printf("g_init: mkdtemp failed [%s]\n", g_temp_base);
+      }
+    }
+  }
 }
 
 /*****************************************************************************/
@@ -98,6 +111,7 @@ g_deinit(void)
 #if defined(_WIN32)
   WSACleanup();
 #endif
+  g_remove_dir(g_temp_base);
 }
 
 /*****************************************************************************/
@@ -700,39 +714,61 @@ g_create_wait_obj(char* name)
 #else
   tbus obj;
   struct sockaddr_un sa;
-  size_t len = 0;
-  tbus sck = -1;
-  int i = 0;
-
-  g_memset(&sa,0,sizeof(struct sockaddr_un));
+  size_t len;
+  tbus sck;
+  int i;
+  int safety;
+  int unnamed;
 
+  if (g_temp_base[0] == 0)
+  {
+    return 0;
+  }
   sck = socket(PF_UNIX, SOCK_DGRAM, 0);
   if (sck < 0)
   {
     return 0;
   }
-  memset(&sa, 0, sizeof(sa));
+  safety = 0;
+  g_memset(&sa, 0, sizeof(sa));
   sa.sun_family = AF_UNIX;
-  if ((name == 0) || (strlen(name) == 0))
+  unnamed = 1;
+  if (name != 0)
   {
-    g_random((char*)&i, sizeof(i));
-    sprintf(sa.sun_path, "/tmp/auto%8.8x", i);
-    while (g_file_exist(sa.sun_path))
+    if (name[0] != 0)
     {
-      g_random((char*)&i, sizeof(i));
-      sprintf(sa.sun_path, "/tmp/auto%8.8x", i);
+      unnamed = 0;
     }
   }
+  if (unnamed)
+  {
+    do
+    {
+      if (safety > 100)
+      {
+        break;
+      }
+      safety++;
+      g_random((char*)&i, sizeof(i));
+      len = sizeof(sa.sun_path);
+      g_snprintf(sa.sun_path, len, "%s/auto_%8.8x", g_temp_base, i);
+      len = sizeof(sa);
+    } while (bind(sck, (struct sockaddr*)&sa, len) < 0);
+  }
   else
   {
-    sprintf(sa.sun_path, "/tmp/%s", name);
-  }
-  unlink(sa.sun_path);
-  len = sizeof(sa);
-  if (bind(sck, (struct sockaddr*)&sa, len) < 0)
-  {
-    close(sck);
-    return 0;
+    do
+    {
+      if (safety > 100)
+      {
+        break;
+      }
+      safety++;
+      g_random((char*)&i, sizeof(i));
+      len = sizeof(sa.sun_path);
+      g_snprintf(sa.sun_path, len, "%s/%s_%8.8x", g_temp_base, name, i);
+      len = sizeof(sa);
+    } while (bind(sck, (struct sockaddr*)&sa, len) < 0);
   }
   obj = (tbus)sck;
   return obj;

common/os_calls.h

@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2004-2010 Jay Sorg
+   Copyright (c) 2004-2012 Jay Sorg
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -32,7 +32,7 @@
 #include "arch.h"
 
 void APP_CC
-g_init(void);
+g_init(const char* app_name);
 void APP_CC
 g_deinit(void);
 void* APP_CC

sesman/chansrv/chansrv.c

@@ -637,7 +637,7 @@ main(int argc, char** argv)
   char text[256] = "";
   char* display_text = (char *)NULL;
 
-  g_init(); /* os_calls */
+  g_init("xrdp-chansrv"); /* os_calls */
   read_ini();
   pid = g_getpid();
   LOG(1, ("main: app started pid %d(0x%8.8x)", pid, pid));
@@ -681,5 +681,6 @@ main(int argc, char** argv)
   /* cleanup */
   main_cleanup();
   LOG(1, ("main: app exiting pid %d(0x%8.8x)", pid, pid));
+  g_deinit();
   return 0;
 }

sesman/sesman.c

@@ -138,6 +138,7 @@ main(int argc, char** argv)
   char text[256];
   char pid_file[256];
 
+  g_init("xrdp-sesman");
   g_snprintf(pid_file, 255, "%s/xrdp-sesman.pid", XRDP_PID_PATH);
   if (1 == argc)
   {
@@ -350,6 +351,7 @@ main(int argc, char** argv)
     log_end(&(g_cfg->log));
   }
 
+  g_deinit();
   return 0;
 }
 

sesman/sessvc/sessvc.c

@@ -80,6 +80,7 @@ main(int argc, char** argv)
   int lerror = 0;
   char exe_path[262];
 
+  g_init("xrdp-sessvc");
   g_memset(exe_path,0,sizeof(exe_path));
 
   if (argc < 3)
@@ -145,5 +146,6 @@ main(int argc, char** argv)
     g_sleep(1);
   }
   g_writeln("xrdp-sessvc: clean exit");
+  g_deinit();
   return 0;
 }

xrdp/xrdp.c

@@ -235,7 +235,7 @@ main(int argc, char** argv)
   char text[256];
   char pid_file[256];
 
-  g_init();
+  g_init("xrdp");
   ssl_init();
   /* check compiled endian with actual endian */
   test = 1;
@@ -432,5 +432,6 @@ main(int argc, char** argv)
   /* delete the xrdp.pid file */
   g_file_delete(pid_file);
   g_free(startup_params);
+  g_deinit();
   return 0;
 }