win32: improve filesystem detection and display

Miscellaneous improvements:

- Enable '-a' option to display all filesystems in df(1).
- Detect the UDF CDROM filesystem and display it in 'stat -f'.
- Let getmntent(3) handle CDROM and floppy devices, ignoring those
  that have no media.
- Set number of inodes and filesystem flags to 0 in statfs(2).

1 files changed, 3 insertions, 0 deletions

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 35aabe758..58e391fd9 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -1233,6 +1233,9 @@ int main(int argc UNUSED_PARAM, char **argv)
 # if ENABLE_FEATURE_EURO
         init_codepage();
 # endif
+        /* Ignore critical errors, such as calling GetVolumeInformation() on
+         * a floppy or CDROM drive with no media. */
+        SetErrorMode(SEM_FAILCRITICALERRORS);
 #endif
 
 #if defined(__MINGW64_VERSION_MAJOR)