libbb: add xfstat function

function                                             old     new   delta
xfstat                                                 -      25     +25
mkfs_ext2_main                                      2421    2423      +2
mkfs_reiser_main                                    1197    1194      -3
next                                                 312     307      -5
ar_main                                              533     522     -11
mkfs_minix_main                                     2938    2924     -14
mkfs_vfat_main                                      1511    1495     -16
writeTarFile                                         272     255     -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 27/-66)            Total: -39 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/util-linux/mkfs_reiser.c b/util-linux/mkfs_reiser.c
index 6e172d6d3..00ce8f1d1 100644
--- a/util-linux/mkfs_reiser.c
+++ b/util-linux/mkfs_reiser.c
@@ -168,9 +168,9 @@ int mkfs_reiser_main(int argc UNUSED_PARAM, char **argv)
 
         // check the device is a block device
         fd = xopen(argv[0], O_WRONLY | O_EXCL);
-        fstat(fd, &st);
+        xfstat(fd, &st, argv[0]);
         if (!S_ISBLK(st.st_mode) && !(option_mask32 & OPT_f))
-                bb_error_msg_and_die("not a block device");
+                bb_error_msg_and_die("%s: not a block device", argv[0]);
 
         // check if it is mounted
         // N.B. what if we format a file? find_mount_point will return false negative since