mirror of
https://github.com/vivier/EMILE.git
synced 2024-08-02 06:29:14 +00:00
change API of get_dev and get_rdev: return driver major number instead of device pathname
This commit is contained in:
parent
56d2a72250
commit
be323732d0
@ -49,14 +49,14 @@ static int get_device_info(int fd, short *id, unsigned long *first_block,
|
|||||||
unsigned char channel;
|
unsigned char channel;
|
||||||
unsigned char pun;
|
unsigned char pun;
|
||||||
unsigned char lun;
|
unsigned char lun;
|
||||||
char *driver;
|
int driver;
|
||||||
int disk;
|
int disk;
|
||||||
int partition;
|
int partition;
|
||||||
|
|
||||||
ret = emile_scsi_get_dev(fd, &driver, &disk, &partition);
|
ret = emile_scsi_get_dev(fd, &driver, &disk, &partition);
|
||||||
if (ret == -1)
|
if (ret == -1)
|
||||||
return -1;
|
return -1;
|
||||||
sprintf(dev_name, "%s%c%d", driver, disk + 'a', partition);
|
emile_get_dev_name(dev_name, driver, disk, partition);
|
||||||
|
|
||||||
fd = open(dev_name, O_RDONLY);
|
fd = open(dev_name, O_RDONLY);
|
||||||
if (fd == -1) {
|
if (fd == -1) {
|
||||||
|
@ -12,14 +12,34 @@ static __attribute__((used)) char* rcsid = "$CVSHeader$";
|
|||||||
|
|
||||||
#include "libemile.h"
|
#include "libemile.h"
|
||||||
|
|
||||||
/* SCSI disks */
|
int emile_get_dev_name(char *buffer, int driver, int disk, int partition)
|
||||||
|
{
|
||||||
|
switch(driver)
|
||||||
|
{
|
||||||
|
case MAJOR_HD:
|
||||||
|
if (partition == 0)
|
||||||
|
sprintf(buffer, "/dev/hd%c", 'a' + disk);
|
||||||
|
else
|
||||||
|
sprintf(buffer, "/dev/hd%c%d", 'a' + disk,
|
||||||
|
partition);
|
||||||
|
break;
|
||||||
|
case MAJOR_LOOP:
|
||||||
|
sprintf(buffer, "/dev/loop%d", disk);
|
||||||
|
break;
|
||||||
|
case MAJOR_SD:
|
||||||
|
if (partition == 0)
|
||||||
|
sprintf(buffer, "/dev/sd%c", 'a' + disk);
|
||||||
|
else
|
||||||
|
sprintf(buffer, "/dev/sd%c%d", 'a' + disk,
|
||||||
|
partition);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
#define MAJOR_HD 3
|
int emile_scsi_get_dev(int fd, int* driver, int *disk, int *partition)
|
||||||
#define MAJOR_SD 8
|
|
||||||
static char *scsi_base = "/dev/sd";
|
|
||||||
static char *ata_base = "/dev/hd";
|
|
||||||
|
|
||||||
int emile_scsi_get_dev(int fd, char** driver, int *disk, int *partition)
|
|
||||||
{
|
{
|
||||||
struct stat st;
|
struct stat st;
|
||||||
int ret;
|
int ret;
|
||||||
@ -36,15 +56,18 @@ int emile_scsi_get_dev(int fd, char** driver, int *disk, int *partition)
|
|||||||
major = (dev >> 8) & 0x0F; /* major number = driver id */
|
major = (dev >> 8) & 0x0F; /* major number = driver id */
|
||||||
minor = dev & 0xFF; /* minor number = disk id */
|
minor = dev & 0xFF; /* minor number = disk id */
|
||||||
|
|
||||||
|
*driver = major;
|
||||||
switch(major)
|
switch(major)
|
||||||
{
|
{
|
||||||
case MAJOR_SD: /* SCSI disks */
|
case MAJOR_SD: /* SCSI disks */
|
||||||
*driver = scsi_base;
|
|
||||||
*disk = minor >> 4;
|
*disk = minor >> 4;
|
||||||
*partition = minor & 0x0F;
|
*partition = minor & 0x0F;
|
||||||
break;
|
break;
|
||||||
|
case MAJOR_LOOP: /* loop device */
|
||||||
|
*disk = minor & 0xFF;
|
||||||
|
*partition = 0;
|
||||||
|
break;
|
||||||
case MAJOR_HD: /* ATA disks */
|
case MAJOR_HD: /* ATA disks */
|
||||||
*driver = ata_base;
|
|
||||||
*disk = minor >> 6;
|
*disk = minor >> 6;
|
||||||
*partition = minor & 0x3F;
|
*partition = minor & 0x3F;
|
||||||
break;
|
break;
|
||||||
|
@ -8,12 +8,7 @@ static __attribute__((used)) char* rcsid = "$CVSHeader$";
|
|||||||
#include "partition.h"
|
#include "partition.h"
|
||||||
#include "libemile.h"
|
#include "libemile.h"
|
||||||
|
|
||||||
#define MAJOR_HD 3
|
int emile_scsi_get_rdev(char* dev_name, int* driver, int *disk, int *partition)
|
||||||
#define MAJOR_SD 8
|
|
||||||
static char *scsi_base = "/dev/sd";
|
|
||||||
static char *ide_base = "/dev/hd";
|
|
||||||
|
|
||||||
int emile_scsi_get_rdev(char* dev_name, char** driver, int *disk, int *partition)
|
|
||||||
{
|
{
|
||||||
int ret;
|
int ret;
|
||||||
struct stat st;
|
struct stat st;
|
||||||
@ -28,15 +23,14 @@ int emile_scsi_get_rdev(char* dev_name, char** driver, int *disk, int *partition
|
|||||||
return -1;
|
return -1;
|
||||||
|
|
||||||
major = (st.st_rdev >> 8) & 0x0F;
|
major = (st.st_rdev >> 8) & 0x0F;
|
||||||
|
*driver = major;
|
||||||
switch(major)
|
switch(major)
|
||||||
{
|
{
|
||||||
case MAJOR_SD:
|
case MAJOR_SD:
|
||||||
*driver = scsi_base;
|
|
||||||
*disk = (st.st_rdev & 0xFF) >> 4;
|
*disk = (st.st_rdev & 0xFF) >> 4;
|
||||||
*partition = st.st_rdev & 0x0F;
|
*partition = st.st_rdev & 0x0F;
|
||||||
break;
|
break;
|
||||||
case MAJOR_HD:
|
case MAJOR_HD:
|
||||||
*driver = ide_base;
|
|
||||||
*disk = (st.st_rdev & 0xFF) >> 6;
|
*disk = (st.st_rdev & 0xFF) >> 6;
|
||||||
*partition = st.st_rdev & 0x3F;
|
*partition = st.st_rdev & 0x3F;
|
||||||
break;
|
break;
|
||||||
|
Loading…
Reference in New Issue
Block a user