Create: fix warning about pre-existing filesystems.

An ext[234] filesystem larger than 2TB was beign reported with
a negative size - which looks odd.

So fix it to use suitably large and unsigned values.

Reported-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/util.c b/util.c
index e7e3d488896459e02225f330c510613423c229f5..8096e2976f937c9c83346b7203e3fc84525923d0 100644 (file)
--- a/util.c
+++ b/util.c
@@ -511,7 +511,8 @@ int check_ext2(int fd, char *name)
         */
        unsigned char sb[1024];
        time_t mtime;
-       int size, bsize;
+       unsigned long long size;
+       int bsize;
        if (lseek(fd, 1024,0)!= 1024)
                return 0;
        if (read(fd, sb, 1024)!= 1024)
@@ -522,10 +523,10 @@ int check_ext2(int fd, char *name)
        mtime = sb[44]|(sb[45]|(sb[46]|sb[47]<<8)<<8)<<8;
        bsize = sb[24]|(sb[25]|(sb[26]|sb[27]<<8)<<8)<<8;
        size = sb[4]|(sb[5]|(sb[6]|sb[7]<<8)<<8)<<8;
+       size <<= bsize;
        pr_err("%s appears to contain an ext2fs file system\n",
                name);
-       cont_err("size=%dK  mtime=%s",
-               size*(1<<bsize), ctime(&mtime));
+       cont_err("size=%lluK  mtime=%s", size, ctime(&mtime));
        return 1;
 }
 
@@ -538,7 +539,7 @@ int check_reiser(int fd, char *name)
         *
         */
        unsigned char sb[1024];
-       unsigned long size;
+       unsigned long long size;
        if (lseek(fd, 64*1024, 0) != 64*1024)
                return 0;
        if (read(fd, sb, 1024) != 1024)
@@ -548,7 +549,7 @@ int check_reiser(int fd, char *name)
                return 0;
        pr_err("%s appears to contain a reiserfs file system\n",name);
        size = sb[0]|(sb[1]|(sb[2]|sb[3]<<8)<<8)<<8;
-       cont_err("size = %luK\n", size*4);
+       cont_err("size = %lluK\n", size*4);
 
        return 1;
 }