diff -up ksh-20120801/src/cmd/ksh93/sh/io.c.fdstatus ksh-20120801/src/cmd/ksh93/sh/io.c

--- ksh-20120801/src/cmd/ksh93/sh/io.c.fdstatus	2013-07-04 18:01:27.187516655 +0200

+++ ksh-20120801/src/cmd/ksh93/sh/io.c	2013-07-04 18:01:38.249607392 +0200

@@ -1508,7 +1508,7 @@ int	sh_redirect(Shell_t *shp,struct iono

 					fn = fd;

 					if(fd<10)

 					{

-						if((fn=fcntl(fd,F_DUPFD,10)) < 0)

+						if((fn=sh_fcntl(fd,F_DUPFD,10)) < 0)

 							goto fail;

 						if(fn>=shp->gd->lim.open_max && !sh_iovalidfd(shp,fn))

 							goto fail;

diff -up ksh-20120801/src/cmd/ksh93/sh/subshell.c.fdstatus ksh-20120801/src/cmd/ksh93/sh/subshell.c

--- ksh-20120801/src/cmd/ksh93/sh/subshell.c.fdstatus	2012-07-17 23:54:21.000000000 +0200

+++ ksh-20120801/src/cmd/ksh93/sh/subshell.c	2013-07-04 17:56:20.342000310 +0200

@@ -122,7 +122,7 @@ void	sh_subtmpfile(Shell_t *shp)

 		register struct checkpt	*pp = (struct checkpt*)shp->jmplist;

 		register struct subshell *sp = subshell_data->pipe;

 		/* save file descriptor 1 if open */

-		if((sp->tmpfd = fd = fcntl(1,F_DUPFD,10)) >= 0)

+		if((sp->tmpfd = fd = sh_fcntl(1,F_DUPFD,10)) >= 0)

 		{

 			fcntl(fd,F_SETFD,FD_CLOEXEC);

 			shp->fdstatus[fd] = shp->fdstatus[1]|IOCLEX;

@@ -554,7 +554,7 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_

 				sp->pwdfd = n;

 				if(n<10)

 				{

-					sp->pwdfd =  fcntl(n,F_DUPFD,10);

+					sp->pwdfd = sh_fcntl(n,F_DUPFD,10);

 					close(n);

 				}

 				if(sp->pwdfd>0)

diff -up ksh-20120801/src/cmd/ksh93/sh/xec.c.fdstatus ksh-20120801/src/cmd/ksh93/sh/xec.c

--- ksh-20120801/src/cmd/ksh93/sh/xec.c.fdstatus	2012-07-23 16:49:32.000000000 +0200

+++ ksh-20120801/src/cmd/ksh93/sh/xec.c	2013-07-04 17:57:47.153712116 +0200

@@ -116,7 +116,7 @@ static int iousepipe(Shell_t *shp)

 		return(0);

 	usepipe++;

 	fcntl(subpipe[0],F_SETFD,FD_CLOEXEC);

-	subpipe[2] = fcntl(1,F_DUPFD,10);

+	subpipe[2] = sh_fcntl(1,F_DUPFD,10);

 	fcntl(subpipe[2],F_SETFD,FD_CLOEXEC);

 	shp->fdstatus[subpipe[2]] = shp->fdstatus[1];

 	close(1);

@@ -3622,7 +3622,7 @@ static void coproc_init(Shell_t *shp, in

 		sh_pipe(shp->cpipe);

 		if((outfd=shp->cpipe[1]) < 10) 

 		{

-		        int fd=fcntl(shp->cpipe[1],F_DUPFD,10);

+		        int fd=sh_fcntl(shp->cpipe[1],F_DUPFD,10);

 			if(fd>=10)

 			{

 			        shp->fdstatus[fd] = (shp->fdstatus[outfd]&~IOCLEX);