Debug: pass ACL-initiated debug through execs

[exim.git] / src / src / child.c

diff --git a/src/src/child.c b/src/src/child.c
index 948e0d66928dfb26ed96982c94815ef5950684dc..4a262d623a2d19d40e3896561d22e421480a36ad 100644 (file)
--- a/src/src/child.c
+++ b/src/src/child.c
@@ -3,7 +3,7 @@
 *************************************************/
 
 /* Copyright (c) University of Cambridge 1995 - 2015 */
-/* Copyright (c) The Exim Maintainers 2020 */
+/* Copyright (c) The Exim Maintainers 2020 - 2021 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -108,7 +108,17 @@ if (!minimal)
   else
     {
     if (debug_selector != 0)
+      {
       argv[n++] = string_sprintf("-d=0x%x", debug_selector);
+      if (debug_fd > 2)
+       {
+       int flags = fcntl(debug_fd, F_GETFD);
+       if (flags != -1) (void)fcntl(debug_fd, F_SETFD, flags & ~FD_CLOEXEC);
+       close(2);
+       dup2(debug_fd, 2);
+       close(debug_fd);
+       }
+      }
     }
   DEBUG(D_any)
     {