diff options
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/cron/cron/popen.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/usr.sbin/cron/cron/popen.c b/usr.sbin/cron/cron/popen.c index 34b2f02..7613f54 100644 --- a/usr.sbin/cron/cron/popen.c +++ b/usr.sbin/cron/cron/popen.c @@ -28,11 +28,12 @@ static char sccsid[] = "@(#)popen.c 5.7 (Berkeley) 2/14/89"; #endif static const char rcsid[] = - "$Id$"; + "$Id: popen.c,v 1.5 1997/09/15 06:39:07 charnier Exp $"; #endif /* not lint */ #include "cron.h" #include <sys/signal.h> +#include <fcntl.h> #define MAX_ARGS 100 @@ -105,6 +106,9 @@ cron_popen(program, type) /* NOTREACHED */ case 0: /* child */ if (*type == 'r') { + /* Do not share our parent's stdin */ + (void)close(0); + (void)open("/dev/null", O_RDWR); if (pdes[1] != 1) { dup2(pdes[1], 1); dup2(pdes[1], 2); /* stderr, too! */ @@ -116,6 +120,11 @@ cron_popen(program, type) dup2(pdes[0], 0); (void)close(pdes[0]); } + /* Hack: stdout gets revoked */ + (void)close(1); + (void)open("/dev/null", O_RDWR); + (void)close(2); + (void)open("/dev/null", O_RDWR); (void)close(pdes[1]); } #if WANT_GLOBBING |
