1 files changed, 15 insertions, 0 deletions
diff --git a/src/lib/fdpass.h b/src/lib/fdpass.h
new file mode 100644
index 0000000..c5d42af
--- /dev/null
+++ b/src/lib/fdpass.h
@@ -0,0 +1,15 @@
+#ifndef FDPASS_H
+#define FDPASS_H
+
+/* Send data and send_fd (unless it's -1) via sendmsg(). Returns number of
+   bytes sent, or -1 on error. If at least 1 byte was sent, the send_fd was
+   also sent. */
+ssize_t fd_send(int handle, int send_fd, const void *data, size_t size);
+
+/* Receive data and fd via recvmsg(). Returns number of bytes read, 0 on
+   disconnection, or -1 on error. If at least 1 byte was read, the fd is also
+   returned (if it had been sent). If there was no fd received, it's set to
+   -1. See test-istream-unix.c for different test cases. */
+ssize_t fd_read(int handle, void *data, size_t size, int *fd_r);
+
+#endif