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With auto device family: scd is now fallback if sr does not exist

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This commit is contained in:
Thomas Schmitt 2008-07-02 09:39:02 +00:00
parent eb95d89272
commit b1c6953b61
2 changed files with 40 additions and 3 deletions
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2
cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2008.06.14.140711"
#define Cdrskin_timestamP "2008.07.02.093933"

41
libburn/sg-linux.c
View File

@ -260,6 +260,37 @@ static void sg_select_device_family(void)
}
/* ts A80701 */
/* This cares for the case that no /dev/srNN but only /dev/scdNN exists.
A theoretical case which has its complement in SuSE 10.2 having
/dev/sr but not /dev/scd.
*/
static int sg_exchange_scd_for_sr(char *fname, int flag)
{
struct stat stbuf;
char scd[17], msg[160];
if (burn_sg_use_family != 0 || strncmp(fname, "/dev/sr", 7)!=0 ||
strlen(fname)>9 || strlen(fname)<8)
return 2;
if (fname[7] < '0' || fname[7] > '9')
return 2;
if (fname [8] != 0 && (fname[7] < '0' || fname[7] > '9'))
return 2;
if (stat(fname, &stbuf) != -1)
return 2;
strcpy(scd, "/dev/scd");
strcpy(scd + 8, fname + 7);
if (stat(scd, &stbuf) == -1)
return 2;
sprintf(msg, "%s substitutes for non-existent %s", scd, fname);
libdax_msgs_submit(libdax_messenger, -1, 0x00000002,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH, msg, 0, 0);
strcpy(fname, scd);
return 1;
}
static int sgio_test(int fd)
{
unsigned char test_ops[] = { 0, 0, 0, 0, 0, 0 };
@ -646,7 +677,7 @@ static void sg_enumerate(void)
int i, fd, sibling_fds[BURN_OS_SG_MAX_SIBLINGS], sibling_count= 0, ret;
int sid_ret = 0;
int bus_no= -1, host_no= -1, channel_no= -1, target_no= -1, lun_no= -1;
char fname[10];
char fname[17];
char sibling_fnames[BURN_OS_SG_MAX_SIBLINGS][BURN_OS_SG_MAX_NAMELEN];
sg_select_device_family();
@ -661,6 +692,9 @@ static void sg_enumerate(void)
for (i = 0; i < 32; i++) {
sprintf(fname, linux_sg_device_family, i);
/* ts A80702 */
sg_exchange_scd_for_sr(fname, 0);
if (linux_sg_enumerate_debug)
fprintf(stderr, "libburn_debug: %s : ", fname);
@ -893,6 +927,10 @@ int sg_give_next_adr(burn_drive_enumerator_t *idx,
if (adr_size < 10)
return -1;
sprintf(adr, linux_sg_device_family, *idx);
/* ts A80702 */
sg_exchange_scd_for_sr(adr, 0);
return 1;
next_ata:;
baseno += sg_limit;
@ -1378,7 +1416,6 @@ int sg_is_enumerable_adr(char *adr)
sg_give_next_adr(&idx, fname, sizeof(fname), -1);
return 1;
}
}
sg_give_next_adr(&idx, fname, sizeof(fname), -1);
return(0);