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Differential D4713 Diff 15303 head/lib/libstand/cd9660.c

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head/lib/libstand/cd9660.c

Show First 20 Lines • Show All 137 Lines • ▼ Show 20 Lines while (p + 3 < end) {
sh = (ISO_SUSP_HEADER *)p; sh = (ISO_SUSP_HEADER *)p;
if (bcmp(sh->type, identifier, 2) == 0) if (bcmp(sh->type, identifier, 2) == 0)
return (sh); return (sh);
if (bcmp(sh->type, SUSP_STOP, 2) == 0) if (bcmp(sh->type, SUSP_STOP, 2) == 0)
return (NULL); return (NULL);
if (bcmp(sh->type, SUSP_CONTINUATION, 2) == 0) { if (bcmp(sh->type, SUSP_CONTINUATION, 2) == 0) {
shc = (ISO_RRIP_CONT *)sh; shc = (ISO_RRIP_CONT *)sh;
error = f->f_dev->dv_strategy(f->f_devdata, F_READ, error = f->f_dev->dv_strategy(f->f_devdata, F_READ,
cdb2devb(isonum_733(shc->location)), cdb2devb(isonum_733(shc->location)), 0,
ISO_DEFAULT_BLOCK_SIZE, susp_buffer, &read); ISO_DEFAULT_BLOCK_SIZE, susp_buffer, &read);
/* Bail if it fails. */ /* Bail if it fails. */
if (error != 0 || read != ISO_DEFAULT_BLOCK_SIZE) if (error != 0 || read != ISO_DEFAULT_BLOCK_SIZE)
return (NULL); return (NULL);
p = susp_buffer + isonum_733(shc->offset); p = susp_buffer + isonum_733(shc->offset);
end = p + isonum_733(shc->length); end = p + isonum_733(shc->length);
} else { } else {
▲ Show 20 Lines • Show All 128 Lines • ▼ Show 20 Linescd9660_open(const char *path, struct open_file *f)
int rc, first, use_rrip, lenskip; int rc, first, use_rrip, lenskip;
/* First find the volume descriptor */ /* First find the volume descriptor */
buf = malloc(buf_size = ISO_DEFAULT_BLOCK_SIZE); buf = malloc(buf_size = ISO_DEFAULT_BLOCK_SIZE);
vd = buf; vd = buf;
for (bno = 16;; bno++) { for (bno = 16;; bno++) {
twiddle(1); twiddle(1);
rc = f->f_dev->dv_strategy(f->f_devdata, F_READ, cdb2devb(bno), rc = f->f_dev->dv_strategy(f->f_devdata, F_READ, cdb2devb(bno),
ISO_DEFAULT_BLOCK_SIZE, buf, &read); 0, ISO_DEFAULT_BLOCK_SIZE, buf, &read);
if (rc) if (rc)
goto out; goto out;
if (read != ISO_DEFAULT_BLOCK_SIZE) { if (read != ISO_DEFAULT_BLOCK_SIZE) {
rc = EIO; rc = EIO;
goto out; goto out;
} }
rc = EINVAL; rc = EINVAL;
if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0) if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
Show All 17 Lines while (*path) {
off = 0; off = 0;
boff = 0; boff = 0;
while (off < dsize) { while (off < dsize) {
if ((off % ISO_DEFAULT_BLOCK_SIZE) == 0) { if ((off % ISO_DEFAULT_BLOCK_SIZE) == 0) {
twiddle(1); twiddle(1);
rc = f->f_dev->dv_strategy rc = f->f_dev->dv_strategy
(f->f_devdata, F_READ, (f->f_devdata, F_READ,
cdb2devb(bno + boff), cdb2devb(bno + boff), 0,
ISO_DEFAULT_BLOCK_SIZE, ISO_DEFAULT_BLOCK_SIZE,
buf, &read); buf, &read);
if (rc) if (rc)
goto out; goto out;
if (read != ISO_DEFAULT_BLOCK_SIZE) { if (read != ISO_DEFAULT_BLOCK_SIZE) {
rc = EIO; rc = EIO;
goto out; goto out;
} }
▲ Show 20 Lines • Show All 42 Lines • ▼ Show 20 Linescd9660_open(const char *path, struct open_file *f)
} }
if (first) { if (first) {
fp->f_flags |= F_ROOTDIR; fp->f_flags |= F_ROOTDIR;
/* Check for Rock Ridge since we didn't in the loop above. */ /* Check for Rock Ridge since we didn't in the loop above. */
bno = isonum_733(rec.extent) + isonum_711(rec.ext_attr_length); bno = isonum_733(rec.extent) + isonum_711(rec.ext_attr_length);
twiddle(1); twiddle(1);
rc = f->f_dev->dv_strategy(f->f_devdata, F_READ, cdb2devb(bno), rc = f->f_dev->dv_strategy(f->f_devdata, F_READ, cdb2devb(bno),
ISO_DEFAULT_BLOCK_SIZE, buf, &read); 0, ISO_DEFAULT_BLOCK_SIZE, buf, &read);
if (rc) if (rc)
goto out; goto out;
if (read != ISO_DEFAULT_BLOCK_SIZE) { if (read != ISO_DEFAULT_BLOCK_SIZE) {
rc = EIO; rc = EIO;
goto out; goto out;
} }
dp = (struct iso_directory_record *)buf; dp = (struct iso_directory_record *)buf;
use_rrip = rrip_check(f, dp, &lenskip); use_rrip = rrip_check(f, dp, &lenskip);
Show All 40 Linesbuf_read_file(struct open_file *f, char **buf_p, size_t *size_p)
blkoff = fp->f_off % ISO_DEFAULT_BLOCK_SIZE; blkoff = fp->f_off % ISO_DEFAULT_BLOCK_SIZE;
if (blkno != fp->f_buf_blkno) { if (blkno != fp->f_buf_blkno) {
if (fp->f_buf == (char *)0) if (fp->f_buf == (char *)0)
fp->f_buf = malloc(ISO_DEFAULT_BLOCK_SIZE); fp->f_buf = malloc(ISO_DEFAULT_BLOCK_SIZE);
twiddle(16); twiddle(16);
rc = f->f_dev->dv_strategy(f->f_devdata, F_READ, rc = f->f_dev->dv_strategy(f->f_devdata, F_READ,
cdb2devb(blkno), ISO_DEFAULT_BLOCK_SIZE, fp->f_buf, &read); cdb2devb(blkno), 0, ISO_DEFAULT_BLOCK_SIZE,
fp->f_buf, &read);
if (rc) if (rc)
return (rc); return (rc);
if (read != ISO_DEFAULT_BLOCK_SIZE) if (read != ISO_DEFAULT_BLOCK_SIZE)
return (EIO); return (EIO);
fp->f_buf_blkno = blkno; fp->f_buf_blkno = blkno;
} }
▲ Show 20 Lines • Show All 144 Lines • Show Last 20 Lines