Merge remote-tracking branch 'OE-2.1/master' into vuplus-3.0
[vuplus_openvuplus_3.0] / meta-openvuplus / recipes-devtools / mtd / files / mkfs.ubifs-allow-output-file-creation-on-different-device.patch
1 diff --git a/mkfs.ubifs/mkfs.ubifs.c b/mkfs.ubifs/mkfs.ubifs.c
2 index 200c8a5..00b97f4 100644
3 --- a/mkfs.ubifs/mkfs.ubifs.c
4 +++ b/mkfs.ubifs/mkfs.ubifs.c
5 @@ -286,6 +286,22 @@ out_free:
6         return ret;
7  }
8  
9 +/*
10 + * same_device - determine if a file is on the same blockdevice as a directory.
11 + * @dir_name: directory path name
12 + * @file_name: file path name
13 + */
14 +static int same_device(const char *dir_name, const char *file_name)
15 +{
16 +       struct stat stat1, stat2;
17 +
18 +       if (stat(dir_name, &stat1) == -1)
19 +               return -1;
20 +       if (stat(file_name, &stat2) == -1)
21 +               return -1;
22 +       return stat1.st_dev == stat2.st_dev;
23 +}
24 +
25  /**
26   * calc_min_log_lebs - calculate the minimum number of log LEBs needed.
27   * @max_bud_bytes: journal size (buds only)
28 @@ -338,7 +354,7 @@ static int validate_options(void)
29  
30         if (!output)
31                 return err_msg("no output file or UBI volume specified");
32 -       if (root) {
33 +       if (root && same_device(root, output)) {
34                 tmp = is_contained(output, root);
35                 if (tmp < 0)
36                         return err_msg("failed to perform output file root check");