badblocks: Open the device with O_LARGEFILE

Linux doesn't enforce the Large File Support API requirements on block
devices, but in case someone wants to run badblocks on a normal file,
open the device file with O_LARGEFILE.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/misc/badblocks.c b/misc/badblocks.c
index 6261cbe..1d0f95a 100644 (file)
--- a/misc/badblocks.c
+++ b/misc/badblocks.c
@@ -31,6 +31,10 @@
 
 #define _GNU_SOURCE /* for O_DIRECT */
 
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+
 #include <errno.h>
 #include <fcntl.h>
 #ifdef HAVE_GETOPT_H
@@ -933,7 +937,7 @@ int main (int argc, char ** argv)
        unsigned int (*test_func)(int, blk_t,
                                  int, blk_t,
                                  unsigned int);
-       int open_flag = 0;
+       int open_flag;
        long sysval;
 
        setbuf(stdout, NULL);
@@ -1096,7 +1100,7 @@ int main (int argc, char ** argv)
        if (w_flag)
                check_mount(device_name);
 
-       open_flag = w_flag ? O_RDWR : O_RDONLY;
+       open_flag = O_LARGEFILE | (w_flag ? O_RDWR : O_RDONLY);
        dev = open (device_name, open_flag);
        if (dev == -1) {
                com_err (program_name, errno, _("while trying to open %s"),