diff options
Diffstat (limited to 'bin/sh/redir.c')
| -rw-r--r-- | bin/sh/redir.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/bin/sh/redir.c b/bin/sh/redir.c index efd1d3a..47f964f 100644 --- a/bin/sh/redir.c +++ b/bin/sh/redir.c @@ -33,7 +33,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: redir.c,v 1.2 1994/09/24 02:58:10 davidg Exp $ + * $Id: redir.c,v 1.3 1995/05/30 00:07:22 rgrimes Exp $ */ #ifndef lint @@ -120,6 +120,9 @@ redirect(redir, flags) } for (n = redir ; n ; n = n->nfile.next) { fd = n->nfile.fd; + if ((n->nfile.type == NTOFD || n->nfile.type == NFROMFD) && + n->ndup.dupfd == fd) + continue; /* redirect from/to myself */ if ((flags & REDIR_PUSH) && sv->renamed[fd] == EMPTY) { INTOFF; if ((i = copyfd(fd, 10)) != EMPTY) { @@ -341,5 +344,7 @@ copyfd(from, to) { newfd = fcntl(from, F_DUPFD, to); if (newfd < 0 && errno == EMFILE) return EMPTY; + if (newfd < 0) + error("%d: %s", from, strerror(errno)); return newfd; } |
