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Implemented finding matching /dev/sgN from /dev/srM or /dev/scdK

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This commit is contained in:
Thomas Schmitt
2006-09-22 19:29:11 +00:00
parent d0d0af1ba5
commit b67c555b30
3 changed files with 86 additions and 6 deletions
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56
libburn/drive.c
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@ -724,7 +724,7 @@ int burn_drive_find_devno(dev_t devno, char adr[])
if(strlen(fname) >= BURN_DRIVE_ADR_LEN)
return -1;
fprintf(stderr,"libburn experimental: burn_drive_find_devno( 0x%llX ) found %s\n", (long long) devno, fname);
fprintf(stderr,"libburn experimental: burn_drive_find_devno( 0x%lX ) found %s\n", (long) devno, fname);
strcpy(adr, fname);
return 1;
@ -732,6 +732,52 @@ fprintf(stderr,"libburn experimental: burn_drive_find_devno( 0x%llX ) found %s\n
return 0;
}
/* ts A60922 ticket 33 */
/* Try to find an enumerated address with the same host,channel,target,lun
as path */
int burn_drive_find_scsi_adr(char *path, char adr[])
{
char fname[4096];
int i, ret = 0, first = 1;
int host_no, channel_no, target_no, lun_no;
int i_host_no, i_channel_no, i_target_no, i_lun_no;
ret = sg_obtain_scsi_adr(path, &host_no, &channel_no, &target_no,
&lun_no);
if(ret <= 0) {
fprintf(stderr,"libburn experimental: sg_obtain_scsi_adr( %s ) returns %d\n", path, ret);
return 0;
}
fprintf(stderr,"libburn experimental: burn_drive_find_scsi_adr( %s ) : %d,%d,%d,%d\n", path, host_no, channel_no, target_no, lun_no);
while (1) {
ret= sg_give_next_adr(&i, fname, sizeof(fname), first);
if(ret <= 0)
break;
first = 0;
ret = sg_obtain_scsi_adr(fname, &i_host_no, &i_channel_no,
&i_target_no, &i_lun_no);
if(ret == -1)
continue;
if(i_host_no != host_no || i_channel_no != channel_no ||
i_target_no != target_no || i_lun_no != lun_no)
continue;
if(strlen(fname) >= BURN_DRIVE_ADR_LEN)
return -1;
fprintf(stderr,"libburn experimental: burn_drive_find_scsi_adr( %s ) found %s\n", path, fname);
strcpy(adr, fname);
return 1;
}
return 0;
}
/* ts A60922 ticket 33 */
/** Try to convert a given existing filesystem address into a persistent drive
address. */
@ -768,11 +814,9 @@ fprintf(stderr,"libburn experimental: lstat( %s ) returns -1\n",path);
ret = burn_drive_find_devno(stbuf.st_rdev, adr);
if(ret > 0)
return 1;
/* >>> if SCSI device :
try to find enumerated device with same Bus,Target,Lun
*/;
ret = burn_drive_find_scsi_adr(path, adr);
if(ret > 0)
return 1;
}
fprintf(stderr,"libburn experimental: Nothing found for %s \n",path);