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btrfs-progs: mkfs: duplicate argument for --rootdir path

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The source dir points to the argv data, we should make a copy to be sure
it won't change due to further processing.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2022-09-14 17:03:18 +02:00
parent 54fe8e648a
commit c33c2c66b3
1 changed files with 4 additions and 1 deletions
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5
mkfs/main.c
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@ -1114,7 +1114,8 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
PACKAGE_STRING); PACKAGE_STRING);
goto success; goto success;
case 'r': case 'r':
source_dir = optarg; free(source_dir);
source_dir = strdup(optarg);
source_dir_set = true; source_dir_set = true;
break; break;
case 'U': case 'U':
@ -1748,6 +1749,7 @@ out:
btrfs_close_all_devices(); btrfs_close_all_devices();
free(label); free(label);
free(source_dir);
return !!ret; return !!ret;
error: error:
@ -1755,6 +1757,7 @@ error:
close(fd); close(fd);
free(label); free(label);
free(source_dir);
exit(1); exit(1);
success: success:
exit(0); exit(0);