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cdrom_id: fix recognition of blank media

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Thanks to David!
This commit is contained in:
Kay Sievers 2008-06-12 07:20:14 +02:00
parent 2c0644c1c2
commit 9bbdf6eb3c
1 changed files with 5 additions and 1 deletions
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6
extras/cdrom_id/cdrom_id.c
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@ -470,9 +470,13 @@ static int cd_media_toc(int fd)
info("READ TOC: len: %d\n", len);
if (len > sizeof(toc))
return -1;
if (len < 8)
if (len < 2)
return -1;
/* empty media has no tracks */
if (len < 8)
return 0;
scsi_cmd_set(&sc, 0, 0x43);
scsi_cmd_set(&sc, 6, header[2]); /* First Track/Session Number */
scsi_cmd_set(&sc, 7, len >> 8);