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(start_job_command): Set FD_CLOEXEC flag on BAD_STDIN descriptor.

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This commit is contained in:
Roland McGrath 1995-08-01 18:38:49 +00:00
parent 8b3f13f6ec
commit d02b26a4b8
1 changed files with 16 additions and 0 deletions
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16
job.c
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@ -35,6 +35,12 @@ static char *dos_bename;
static int dos_batch_file;
#endif /* MSDOS. */
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
/* If NGROUPS_MAX == 0 then try other methods for finding a real value. */
#if defined (NGROUPS_MAX) && NGROUPS_MAX == 0
@ -641,6 +647,16 @@ start_job_command (child)
(void) close (pd[1]);
/* Save the read side. */
bad_stdin = pd[0];
/* Set the descriptor to close on exec, so it does not litter any
child's descriptor table. When it is dup2'd onto descriptor 0,
that descriptor will not close on exec. */
#ifdef FD_SETFD
#ifndef FD_CLOEXEC
#define FD_CLOEXEC 1
#endif
(void) fcntl (bad_stdin, F_SETFD, FD_CLOEXEC);
#endif
}
}