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Remove the duplicate setpgid() in forkparent(). The real bug was freeing the 

job structure in the child and referencing freed memory.
This commit is contained in:
mycroft 2002-09-28 03:08:00 +00:00
parent 543bc9a286
commit 7973b7a0ac
1 changed files with 5 additions and 13 deletions
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18
bin/sh/jobs.c
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@ -1,4 +1,4 @@
/* $NetBSD: jobs.c,v 1.51 2002/09/28 01:25:01 christos Exp $ */
/* $NetBSD: jobs.c,v 1.52 2002/09/28 03:08:00 mycroft Exp $ */
/*-
* Copyright (c) 1991, 1993
@ -41,7 +41,7 @@
#if 0
static char sccsid[] = "@(#)jobs.c 8.5 (Berkeley) 5/4/95";
#else
__RCSID("$NetBSD: jobs.c,v 1.51 2002/09/28 01:25:01 christos Exp $");
__RCSID("$NetBSD: jobs.c,v 1.52 2002/09/28 03:08:00 mycroft Exp $");
#endif
#endif /* not lint */
@ -680,16 +680,7 @@ forkparent(jp, n, mode, pid)
int mode;
pid_t pid;
{
int pgrp;
if (rootshell && mode != FORK_NOJOB && mflag) {
if (jp == NULL || jp->nprocs == 0)
pgrp = pid;
else
pgrp = jp->ps[0].pid;
/* This can fail because we are doing it in the child also */
(void)setpgid(pid, pgrp);
}
if (mode == FORK_BG)
backgndpid = pid; /* set $! */
if (jp) {
@ -739,8 +730,9 @@ forkchild(jp, n, mode, vforked)
pgrp = getpid();
else
pgrp = jp->ps[0].pid;
/* This can fail because we are doing it in the parent also */
(void)setpgid(0, pgrp);
if (setpgid(0, pgrp) == -1)
error("Cannot set process group (%s) at %d",
strerror(errno), __LINE__);
if (mode == FORK_FG) {
if (tcsetpgrp(ttyfd, pgrp) == -1)
error("Cannot set tty process group (%s) at %d",