Add pidfile_fileno() to obtain the file descriptor for an open

pidfile.

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/libutil/pidfile.c b/lib/libutil/pidfile.c
index fcd504c..cf5acce 100644
--- a/lib/libutil/pidfile.c
+++ b/lib/libutil/pidfile.c
@@ -266,3 +266,13 @@ pidfile_remove(struct pidfh *pfh)
 
 	return (_pidfile_remove(pfh, 1));
 }
+
+int
+pidfile_fileno(struct pidfh *pfh)
+{
+	if (pfh == NULL || pfh->pf_fd == -1) {
+		errno = EDOOFUS;
+		return (-1);
+	}
+	return (pfh->pf_fd);
+}