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Forced role 3 on drives which stem from open file descriptors without O_RDWR

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This commit is contained in:
Thomas Schmitt
2011-02-09 11:43:10 +00:00
parent 2b07bd0632
commit 4f5075d7a9
3 changed files with 84 additions and 32 deletions
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9
libburn/write.c
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@ -2034,6 +2034,7 @@ int burn_stdio_open_write(struct burn_drive *d, off_t start_byte,
int fd = -1;
int mode = O_RDWR | O_CREAT | O_LARGEFILE;
char msg[160];
off_t lseek_res;
if (d->devname[0] == 0) /* null drives should not come here */
return -1;
@ -2053,10 +2054,11 @@ int burn_stdio_open_write(struct burn_drive *d, off_t start_byte,
}
if (start_byte < 0)
start_byte = 0;
if (d->drive_role == 2)
if (lseek(fd, start_byte, SEEK_SET)==-1) {
if (d->drive_role == 2) {
lseek_res = lseek(fd, start_byte, SEEK_SET);
if (lseek_res == -1) {
sprintf(msg, "Cannot address start byte %.f",
(double) start_byte);
(double) start_byte);
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020147,
LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
@ -2065,6 +2067,7 @@ int burn_stdio_open_write(struct burn_drive *d, off_t start_byte,
d->cancel = 1;
fd = -1;
}
}
d->nwa = start_byte / sector_size;
return fd;
}