If setgid fails for any reason, exit lldb.

This is SVN r191618 by Sylvestre Ledru applied to the FreeBSD
ProcessMonitor.

llvm-svn: 200791

1 files changed, 7 insertions, 2 deletions

diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp b/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
index d5179967f379..3b260538b190 100644
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
@@ -896,7 +896,8 @@ ProcessMonitor::Launch(LaunchArgs *args)
         eDupStdoutFailed,
         eDupStderrFailed,
         eChdirFailed,
-        eExecFailed
+        eExecFailed,
+        eSetGidFailed
     };
 
     // Child process.
@@ -907,7 +908,8 @@ ProcessMonitor::Launch(LaunchArgs *args)
             exit(ePtraceFailed);
 
         // Do not inherit setgid powers.
-        setgid(getgid());
+        if (setgid(getgid()) != 0)
+            exit(eSetGidFailed);
 
         // Let us have our own process group.
         setpgid(0, 0);
@@ -972,6 +974,9 @@ ProcessMonitor::Launch(LaunchArgs *args)
             case eExecFailed:
                 args->m_error.SetErrorString("Child exec failed.");
                 break;
+            case eSetGidFailed:
+                args->m_error.SetErrorString("Child setgid failed.");
+                break;
             default:
                 args->m_error.SetErrorString("Child returned unknown exit status.");
                 break;