fixed some compiler warnings for ubuntu intrepid

1 files changed, 14 insertions, 4 deletions

diff --git a/src/daemon.hpp b/src/daemon.hpp
index 9f1715d..d66549b 100644
--- a/src/daemon.hpp
+++ b/src/daemon.hpp
@@ -26,7 +26,11 @@ void chrootAndDrop(std::string const& chrootdir, std::string const& username)
       exit(-1);
     }
     cLog.msg(Log::PRIO_NOTICE) << "we are in chroot jail (" << chrootdir << ") now" << std::endl;
-    chdir("/");
+    if(chdir("/"))
+    {
+      std::cerr << "can't change to /" << std::endl;
+      exit(-1);
+    }
     if (initgroups(pw->pw_name, pw->pw_gid) || setgid(pw->pw_gid) || setuid(pw->pw_uid))
     {
       std::cerr << "can't drop to user " << username << " " << pw->pw_uid << ":" << pw->pw_gid << std::endl;
@@ -57,9 +61,15 @@ void daemonize()
 //  for (fd=getdtablesize();fd>=0;--fd) // close all file descriptors
   for (fd=0;fd<=2;fd++) // close all file descriptors
     close(fd);
-  fd=open("/dev/null",O_RDWR);        // stdin
-  dup(fd);                            // stdout
-  dup(fd);                            // stderr
+  fd = open("/dev/null",O_RDWR);        // stdin
+  if(fd == -1)
+    cLog.msg(Log::PRIO_WARNING) << "can't open stdin";
+  else {
+    if(dup(fd) == -1)   // stdout
+      cLog.msg(Log::PRIO_WARNING) << "can't open stdout";
+    if(dup(fd) == -1)   // stderr
+      cLog.msg(Log::PRIO_WARNING) << "can't open stderr";
+  }
   umask(027);
 }
 #endif