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Code Issues Releases Activity

Calculate leadout entry instead of honor ATAPI request

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(it can be wrong for some devices)
This commit is contained in:
Andrey A. Chernov 1996-01-30 15:25:12 +00:00
parent 192805fd1a
commit 48ce3c2cee
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=13748
1 changed files with 8 additions and 8 deletions
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16
sys/i386/isa/wcd.c
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@ -1001,25 +1001,25 @@ err: bzero (&t->toc, sizeof (t->toc));
}
ntracks = t->toc.hdr.ending_track - t->toc.hdr.starting_track + 1;
if (ntracks <= 0)
if (ntracks <= 0 || ntracks > MAXTRK)
goto err;
if (ntracks > MAXTRK)
ntracks = MAXTRK;
/* Now read the whole schmeer. */
len = sizeof(struct ioc_toc_header) +
(ntracks+1) * sizeof(struct cd_toc_entry);
ntracks * sizeof(struct cd_toc_entry);
if (wcd_request_wait (t, ATAPI_READ_TOC, 0, 0, 0, 0, 0, 0,
len >> 8, len & 0xff, 0, (char*)&t->toc, len) & 0xff)
goto err;
t->toc.hdr.len = ntohs (t->toc.hdr.len);
for (i=0; i<=ntracks; i++)
for (i=0; i<ntracks; i++)
t->toc.tab[i].addr.lba = ntohl (t->toc.tab[i].addr.lba);
/* Decrement the total length of the disc.
* Some drives (e.g. Sony-55E) have this value too big. */
--t->toc.tab[ntracks].addr.lba;
/* make fake leadout entry */
t->toc.tab[ntracks].control = t->toc.tab[ntracks-1].control;
t->toc.tab[ntracks].addr_type = t->toc.tab[ntracks-1].addr_type;
t->toc.tab[ntracks].track = 170; /* magic */
t->toc.tab[ntracks].addr.lba = t->toc.hdr.len;
/* Read disc capacity. */
if (wcd_request_wait (t, ATAPI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,