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-rw-r--r--mdopen.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/mdopen.c b/mdopen.c
index 4e1ce6a..1ba5201 100644
--- a/mdopen.c
+++ b/mdopen.c
@@ -49,21 +49,21 @@ void make_parts(char *dev, int cnt)
return;
if (!S_ISBLK(stb.st_mode))
return;
- major = MAJOR(stb.st_rdev);
- minor = MINOR(stb.st_rdev);
+ major = major(stb.st_rdev);
+ minor = minor(stb.st_rdev);
for (i=1; i <= cnt ; i++) {
struct stat stb2;
sprintf(name, "%s%s%d", dev, dig?"p":"", i);
if (stat(name, &stb2)==0) {
if (!S_ISBLK(stb2.st_mode))
continue;
- if (stb2.st_rdev == MKDEV(major, minor+i))
+ if (stb2.st_rdev == makedev(major, minor+i))
continue;
unlink(name);
} else {
stb2 = stb;
}
- mknod(name, S_IFBLK | 0600, MKDEV(major, minor+i));
+ mknod(name, S_IFBLK | 0600, makedev(major, minor+i));
chown(name, stb2.st_uid, stb2.st_gid);
chmod(name, stb2.st_mode & 07777);
}
@@ -101,7 +101,7 @@ int open_mddev(char *dev, int autof)
/* check major number is correct */
if (autof>0)
major = get_mdp_major();
- if (stb.st_mode && MAJOR(stb.st_rdev) != major)
+ if (stb.st_mode && major(stb.st_rdev) != major)
must_remove = 1;
if (stb.st_mode && !must_remove) {
mdu_array_info_t array;
@@ -181,14 +181,19 @@ int open_mddev(char *dev, int autof)
/* If it was a 'standard' name and it is in-use, then
* the device could already be correct
*/
- if (stb.st_mode && MAJOR(stb.st_rdev) == major &&
- MINOR(stb.st_rdev) == minor)
+ if (stb.st_mode && major(stb.st_rdev) == major &&
+ minor(stb.st_rdev) == minor)
;
else {
+ if (major(makedev(major,minor)) != major ||
+ minor(makedev(major,minor)) != minor) {
+ fprintf(stderr, Name ": Need newer C library to use more than 4 partitionable md devices, sorry\n");
+ return -1;
+ }
if (must_remove)
unlink(dev);
- if (mknod(dev, S_IFBLK|0600, MKDEV(major, minor))!= 0) {
+ if (mknod(dev, S_IFBLK|0600, makedev(major, minor))!= 0) {
fprintf(stderr, Name ": failed to create %s\n", dev);
return -1;
}