Modify srun --pty option to use configured SrunPortRange range

bug 3979

NEWS

@@ -10,6 +10,7 @@ documents those changes that are of interest to users and administrators.
  -- Set job/step start and end times to 0 when using --truncate and start > end.
  -- Make srun --pty option ignore EINTR allowing windows to resize.
  -- When resuming node only send one message to the slurmdbd.
+ -- Modify srun --pty option to use configured SrunPorts range.
 
 * Changes in Slurm 17.02.6
 ==========================

src/srun/srun_pty.c

@@ -94,8 +94,14 @@ void pty_thread_create(srun_job_t *job)
 {
 	slurm_addr_t pty_addr;
 	pthread_attr_t attr;
+	uint16_t *ports;
 
-	if ((job->pty_fd = slurm_init_msg_engine_port(0)) < 0) {
+	if ((ports = slurm_get_srun_port_range()))
+		job->pty_fd = slurm_init_msg_engine_ports(ports);
+	else
+		job->pty_fd = slurm_init_msg_engine_port(0);
+
+	if (job->pty_fd < 0) {
 		error("init_msg_engine_port: %m");
 		return;
 	}