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added . and ..

This commit is contained in:
cgd 1993-03-30 05:16:56 +00:00
parent 8ee761b100
commit 6178306162
1 changed files with 33 additions and 5 deletions
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38
sys/miscfs/fdesc/fdesc_vnops.c
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@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: fdesc_vnops.c,v 1.2 1993/03/25 06:00:19 cgd Exp $ * $Id: fdesc_vnops.c,v 1.3 1993/03/30 05:16:56 cgd Exp $
*/ */
/* /*
@ -309,15 +309,43 @@ fdesc_readdir(vp, uio, cred, eofflagp)
int *eofflagp; int *eofflagp;
{ {
struct filedesc *fdp; struct filedesc *fdp;
int i; int ind, i;
int error; int error;
#define UIO_MX 16 #define UIO_MX 16
fdp = uio->uio_procp->p_fd; fdp = uio->uio_procp->p_fd;
i = uio->uio_offset / UIO_MX; ind = uio->uio_offset / UIO_MX;
error = 0; error = 0;
while (uio->uio_resid > 0) { while (uio->uio_resid > 0) {
struct direct d;
struct direct *dp = &d;
if (ind < 2) { /* . or .. */
bzero((caddr_t) dp, UIO_MX);
if (ind == 0) {
strcpy(dp->d_name, ".");
dp->d_namlen = 1;
} else if (ind == 1) {
strcpy(dp->d_name, "..");
dp->d_namlen = 2;
} else
panic("fdesc: ind is negative!");
dp->d_reclen = UIO_MX;
dp->d_ino = 2;
/*
* And ship to userland
*/
error = uiomove((caddr_t) dp, UIO_MX, uio);
if (error)
break;
ind++;
continue;
}
i = ind - 2;
if (i >= fdp->fd_nfiles) { if (i >= fdp->fd_nfiles) {
*eofflagp = 1; *eofflagp = 1;
break; break;
@ -373,10 +401,10 @@ fdesc_readdir(vp, uio, cred, eofflagp)
if (error) if (error)
break; break;
} }
i++; ind++;
} }
uio->uio_offset = i * UIO_MX; uio->uio_offset = ind * UIO_MX;
return (error); return (error);
} }