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New API call burn_allow_drive_role_4()

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This commit is contained in:
Thomas Schmitt
2011-03-13 13:07:46 +00:00
parent 1b166f484d
commit 402f4c0b04
8 changed files with 154 additions and 35 deletions
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97
libburn/drive.c
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@ -60,6 +60,10 @@ static int drivetop = -1;
/* ts A80410 : in init.c */
extern int burn_support_untested_profiles;
/* ts B10312 : in init.c */
extern int burn_drive_role_4_allowed;
/* ts A61021 : the unspecific part of sg.c:enumerate_common()
*/
int burn_setup_drive(struct burn_drive *d, char *fname)
@ -1386,6 +1390,7 @@ static int burn_drive__is_rdwr(char *fname, int *stat_ret,
read_size = (off_t) 0x7ffffff0 * (off_t) 2048;
}
}
if (is_rdwr && fd >= 0) {
getfl_ret = fcntl(fd, F_GETFL);
@ -1411,6 +1416,37 @@ fprintf(stderr, "LIBBURN_DEBUG: burn_drive__is_rdwr: getfl_ret = %lX , O_RDWR =
}
static int burn_role_by_access(char *fname, int flag)
{
/* We normally need _LARGEFILE64_SOURCE defined by the build system.
Nevertheless the system might use large address integers by default.
*/
#ifndef O_LARGEFILE
#define O_LARGEFILE 0
#endif
int fd;
fd = open(fname, O_RDWR | O_LARGEFILE);
if (fd != -1) {
close(fd);
return 2;
}
fd = open(fname, O_RDONLY | O_LARGEFILE);
if (fd != -1) {
close(fd);
return 4;
}
fd = open(fname, O_WRONLY | O_LARGEFILE);
if (fd != -1) {
close(fd);
return 3;
}
if (flag & 1)
return 0;
return 2;
}
/* ts A70903 : Implements adquiration of pseudo drives */
int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
{
@ -1422,8 +1458,6 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
struct burn_drive *d= NULL, *regd_d;
struct stat stbuf;
static int allow_role_3 = 1;
if (fname[0] != 0) {
is_rdwr = burn_drive__is_rdwr(fname, &stat_ret, &stbuf,
&read_size, 1);
@ -1445,22 +1479,18 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
return 0;
}
if (fname[0] != 0) {
/* >>> as soon as new role 4 is introduced:
if (is_rdwr == 2) role = 4; else
*/
role = 2;
if (is_rdwr == 2 &&
(burn_drive_role_4_allowed & 1))
role = 4;
else
role = 2;
if (stat_ret != -1 && is_rdwr == 1 &&
(burn_drive_role_4_allowed & 3) == 3)
role = burn_role_by_access(fname,
!!(burn_drive_role_4_allowed & 4));
} else
role = 0;
} else {
if(S_ISDIR(stbuf.st_mode) || !allow_role_3) {
libdax_msgs_submit(libdax_messenger, -1,
0x00020149,
LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
"Unsuitable filetype for pseudo-drive", 0, 0);
return 0;
}
role = 3;
}
}
@ -1481,22 +1511,28 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
}
free((char *) d); /* all sub pointers have been copied to *regd_d */
d = regd_d;
if (d->drive_role == 2 || d->drive_role == 3) {
d->status = BURN_DISC_BLANK;
d->current_profile = 0xffff; /* MMC for non-compliant drive */
if (d->drive_role == 2 || d->drive_role == 3 || d->drive_role == 4) {
if (d->drive_role == 4) {
d->status = BURN_DISC_FULL;
/* MMC for non-compliant drive */
d->current_profile = 0xffff;
d->block_types[BURN_WRITE_TAO] = 0;
d->block_types[BURN_WRITE_SAO] = 0;
} else {
d->status = BURN_DISC_BLANK;
/* MMC for non-compliant drive */
d->current_profile = 0xffff;
d->block_types[BURN_WRITE_TAO] = BURN_BLOCK_MODE1;
d->block_types[BURN_WRITE_SAO] = BURN_BLOCK_SAO;
}
strcpy(d->current_profile_text,"stdio file");
d->current_is_cd_profile = 0;
d->current_is_supported_profile = 1;
d->block_types[BURN_WRITE_TAO] = BURN_BLOCK_MODE1;
d->block_types[BURN_WRITE_SAO] = BURN_BLOCK_SAO;
if (read_size >= 0)
/* despite its name : last valid address, not size */
d->media_read_capacity =
read_size / 2048 - !(read_size % 2048);
burn_drive_set_media_capacity_remaining(d, size);
/* >>> ? open file for a test ? (>>> beware of "-" = stdin) */;
} else
d->current_profile = 0; /* Drives return this if empty */
@ -1515,6 +1551,10 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
strcpy((*drive_infos)[0].vendor,"YOYODYNE");
strcpy((*drive_infos)[0].product,"BLACKHOLE");
strcpy((*drive_infos)[0].revision,"FX02");
} else if (d->drive_role == 4) {
strcpy((*drive_infos)[0].vendor,"YOYODYNE");
strcpy((*drive_infos)[0].product,"WARP DRIVE");
strcpy((*drive_infos)[0].revision,"FX03");
} else {
strcpy((*drive_infos)[0].vendor,"FERENGI");
strcpy((*drive_infos)[0].product,"VAPORWARE");
@ -2448,7 +2488,7 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
o->current_is_cd_profile = d->current_is_cd_profile;
o->might_simulate = 0;
if (d->drive_role == 0)
if (d->drive_role == 0 || d->drive_role == 4)
return 0;
if (d->drive_role == 2) {
/* stdio file drive : random access read-write */
@ -2711,12 +2751,9 @@ int burn_drive_equals_adr(struct burn_drive *d1, char *adr2_in, int role2)
if (fd != -1)
exact_role_matters = 1;
ret = burn_drive__is_rdwr(adr2, NULL, NULL, NULL, 1);
/* >>> as soon as new role 4 is introduced:
if (ret == 2) role2 = 4; else
*/
if (ret == 1)
if (ret == 2 && burn_drive_role_4_allowed)
role2 = 4;
else if (ret > 0)
role2 = 2;
else
role2 = 3;