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j_sigchld may also run outside of interrupt context, so better save errno

This commit is contained in:
tg 2013-05-31 23:59:07 +00:00
parent 49d1ebfb71
commit d5eda34c8b
1 changed files with 4 additions and 5 deletions
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9
jobs.c
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@ -1,4 +1,4 @@
/* $OpenBSD: jobs.c,v 1.38 2009/12/12 04:28:44 deraadt Exp $ */
/* $OpenBSD: jobs.c,v 1.39 2009/12/13 04:36:48 deraadt Exp $ */
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.96 2013/05/02 20:28:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.97 2013/05/31 23:59:07 tg Exp $");
#if HAVE_KILLPG
#define mksh_killpg killpg
@ -1254,8 +1254,7 @@ j_waitj(Job *j,
static void
j_sigchld(int sig MKSH_A_UNUSED)
{
/* this runs inside interrupt context, with errno saved */
int saved_errno = errno;
Job *j;
Proc *p = NULL;
pid_t pid;
@ -1343,7 +1342,7 @@ j_sigchld(int sig MKSH_A_UNUSED)
#ifdef MKSH_NO_SIGSUSPEND
sigprocmask(SIG_SETMASK, &omask, NULL);
#endif
/* nothing */;
errno = saved_errno;
}
/*