Set the close-on-exec flag on file descriptors

1 files changed, 3 insertions, 0 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index a1cf68e69d..ee0f3862a8 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -258,6 +258,9 @@ string runProgram(Path program, bool searchPath = false,
    listed in the given set.  Good practice in child processes. */
 void closeMostFDs(const set<int> & exceptions);
 
+/* Set the close-on-exec flag for the given file descriptor. */
+void closeOnExec(int fd);
+
 /* Wrapper around _exit() on Unix and ExitProcess() on Windows.  (On
    Cygwin, _exit() doesn't seem to do the right thing.) */
 void quickExit(int status);