--- libelwix/src/pio.c	2020/06/19 13:05:12	1.6.4.1
+++ libelwix/src/pio.c	2024/10/10 23:55:49	1.9
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: pio.c,v 1.6.4.1 2020/06/19 13:05:12 misho Exp $
+* $Id: pio.c,v 1.9 2024/10/10 23:55:49 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ terms:
 All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
 
-Copyright 2004 - 2020
+Copyright 2004 - 2024
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -46,6 +46,14 @@ SUCH DAMAGE.
 #include "global.h"
 
 
+#ifdef __linux__
+#define __USE_GNU
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC	02000000
+#endif
+#endif
+
 extern char **environ;
 
 pio_pid_t pio_pidlist = SLIST_HEAD_INITIALIZER(pio_pidlist);
@@ -65,6 +73,7 @@ static pthread_mutex_t pidlist_mutex = PTHREAD_MUTEX_I
  * @command = command
  * @type = type
  * @ppid = return pid of child program
+ * 	If value of *ppid is -1 when invoke routine then child will be session leader
  * return: NULL error or !=NULL open program
  */
 #ifdef POPEN_STREAM
@@ -82,7 +91,8 @@ e_popen(const char *command, const char *type, pid_t *
  *
  * @command = command
  * @type = type
- * @ppid = return pid of child program
+ * @ppid = return pid of child program 
+ * 	If value of *ppid is -1 when invoke routine then child will be session leader
  * @fds = file descriptor array for close when fork
  * @fdslen = fds number of descriptors
  * return: NULL error or !=NULL open program
@@ -163,6 +173,9 @@ e_popen2(const char *command, const char *type, pid_t 
 #endif
 		/* NOTREACHED */
 	case 0:				/* Child. */
+		if (ppid && *ppid == -1)
+			setsid();
+
 		if (fds && fdslen) {
 			for (i = 0; i < fdslen; i++)
 				close(fds[i]);