Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make sure to clear the child's signal mask in all cases.

Browse Source
This commit is contained in:
mycroft 1997-10-31 22:48:12 +00:00
parent bd73dc49c1
commit ff7fbfe809
1 changed files with 8 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
usr.bin/mail/popen.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: popen.c,v 1.7 1997/10/19 05:03:45 lukem Exp $ */
/* $NetBSD: popen.c,v 1.8 1997/10/31 22:48:12 mycroft Exp $ */
/*
* Copyright (c) 1980, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)popen.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: popen.c,v 1.7 1997/10/19 05:03:45 lukem Exp $");
__RCSID("$NetBSD: popen.c,v 1.8 1997/10/31 22:48:12 mycroft Exp $");
#endif
#endif /* not lint */
@ -271,7 +271,7 @@ prepare_child(nset, infd, outfd)
int infd, outfd;
{
int i;
sigset_t fset;
sigset_t eset;
/*
* All file descriptors other than 0, 1, and 2 are supposed to be
@ -281,17 +281,13 @@ prepare_child(nset, infd, outfd)
dup2(infd, 0);
if (outfd >= 0)
dup2(outfd, 1);
if (nset == NULL)
return;
if (nset != NULL) {
for (i = 1; i < NSIG; i++)
if (sigismember(nset, i))
(void) signal(i, SIG_IGN);
}
for (i = 1; i < NSIG; i++)
if (nset != NULL && sigismember(nset, i))
(void) signal(i, SIG_IGN);
if (nset == NULL || !sigismember(nset, SIGINT))
(void) signal(SIGINT, SIG_DFL);
sigfillset(&fset);
(void) sigprocmask(SIG_UNBLOCK, &fset, NULL);
sigemptyset(&eset);
(void) sigprocmask(SIG_SETMASK, &eset, NULL);
}
int