Date: Sun, 27 Sep 1998 22:29:35 +0200 (CEST) From: Sascha Schumann <sas@schell.de> To: freebsd-hackers@FreeBSD.ORG Subject: CDIOREADTOCENTRY Message-ID: <Pine.BSF.4.01.9809272214210.2364-100000@guerilla.foo.bar>
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Hi peers,
I've got a problem getting CDIOREADTOCENTRY to work properly with a
Toshiba on -current (last cvsup two days ago).
The attached program outputs for every CDIOREADTOCENTRY a EINVAL meaning
that a) address_format is incorrect (!CD_MSF_FORMAT && !CD_LBA_FORMAT) or
b) track is illegal, if it is set from the caller.
There doesn't seem to be an obvious error in my program nor in wcd.c. Has
anyone already encountered such a behaviour?
Sascha
-----------------------------
#include <sys/ioctl.h>
#include <sys/cdio.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
main()
{
int fd;
int i;
char *drive = "/dev/wcd0a";
struct ioc_read_toc_single_entry tec;
struct ioc_read_toc_entry tex;
struct ioc_toc_header th;
fd = open(drive, O_RDWR);
if(fd == -1) {
perror("open");
exit(1);
}
if(ioctl(fd, CDIOREADTOCHEADER, &th)) {
perror("cdioreadtocheader");
exit(1);
}
tex.data_len = (th.ending_track - th.starting_track + 1) *
sizeof(struct cd_toc_entry);
tex.data = malloc(tex.data_len);
tex.starting_track = 1;
tex.address_format = CD_LBA_FORMAT;
if(ioctl(fd, CDIOREADTOCENTRYS, &tex) < 0) {
perror("cdioreadtocentrys");
}
for(i = th.starting_track; i <= th.ending_track; i++) {
memset(&tec, 0, sizeof(tec));
tec.track = i; /* also doesn't work, if track = 0 */
tec.address_format = CD_LBA_FORMAT;
if(ioctl(fd, CDIOREADTOCENTRY, &tec) < 0)
perror("cdioreadtocentry");
else
printf("addr: %d \n", ntohl(tec.entry.addr.lba));
printf("%d\n", ntohl(tex.data[i].addr.lba));
}
close(fd);
}
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