JehanneOS/mksh
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• unify ksh_dup2() usage, use bool where appropriate

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• apply diff from mirbsdksh-1.11:
  #ifdef DUP2_BROKEN
  /* Ultrix systems like to preserve the close-on-exec flag */
  ‣ XXX we do #ifdef __ultrix here (imake-style) instead of mirtoconfing it
    (but does anyone know of any other OS with the same problem? plus we’d
    see it as we now know the symptoms)
• remove ultrix Build.hs warn=' but might work…' in the hope it DOES
This commit is contained in:
tg
2008-04-01 20:40:22 +00:00
parent 47a7d246ca
commit e8d61a1d99
6 changed files with 23 additions and 20 deletions
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6
exec.c
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@ -2,7 +2,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.39 2007/10/25 13:27:00 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.40 2008/04/01 20:40:21 tg Exp $");
static int comexec(struct op *, struct tbl *volatile, const char **,
int volatile);
@ -109,14 +109,14 @@ execute(struct op *volatile t,
e->savefd[1] = savefd(1);
while (t->type == TPIPE) {
openpipe(pv);
(void) ksh_dup2(pv[1], 1, false); /* stdout of curr */
ksh_dup2(pv[1], 1, false); /* stdout of curr */
/* Let exchild() close pv[0] in child
* (if this isn't done, commands like
* (: ; cat /etc/termcap) | sleep 1
* will hang forever).
*/
exchild(t->left, flags|XPIPEO|XCCLOSE, pv[0]);
(void) ksh_dup2(pv[0], 0, false); /* stdin of next */
ksh_dup2(pv[0], 0, false); /* stdin of next */
closepipe(pv);
flags |= XPIPEI;
t = t->right;