Fix tell support.

git-svn-id: svn://busybox.net/trunk/busybox@2685 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 13 insertions, 2 deletions

diff --git a/mt.c b/mt.c
index cd926272e..da01eb23f 100644
--- a/mt.c
+++ b/mt.c
@@ -55,6 +55,7 @@ extern int mt_main(int argc, char **argv)
         const char *file = "/dev/tape";
         const struct mt_opcodes *code = opcodes;
         struct mtop op;
+        struct mtpos position;
         int fd, mode;
         
         if (argc < 2) {
@@ -103,8 +104,18 @@ extern int mt_main(int argc, char **argv)
         if ((fd = open(file, mode, 0)) < 0)
                 perror_msg_and_die("%s", file);
 
-        if (ioctl(fd, MTIOCTOP, &op) != 0)
-                perror_msg_and_die("%s", file);
+        switch (code->value) {
+                case MTTELL:
+                        if (ioctl(fd, MTIOCPOS, &position) < 0)
+                                perror_msg_and_die("%s", file);
+                        printf ("At block %d.\n", (int) position.mt_blkno);
+                        break;
+
+                default:
+                        if (ioctl(fd, MTIOCTOP, &op) != 0)
+                                perror_msg_and_die("%s", file);
+                        break;
+        }
 
         return EXIT_SUCCESS;
 }