01/01: [FASTFAT] Don't mess my debug log when partition SysType is printed! (when invalid chars are printed)

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=8c0c90112e8f9a289ecc1…

commit 8c0c90112e8f9a289ecc10a07a1042be2f700db5
Author:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
AuthorDate: Sat Oct 13 19:57:24 2018 +0200
Commit:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
CommitDate: Sat Oct 13 19:57:24 2018 +0200

    [FASTFAT] Don't mess my debug log when partition SysType is printed! (when invalid
chars are printed)
---
 drivers/filesystems/fastfat/fsctl.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/filesystems/fastfat/fsctl.c b/drivers/filesystems/fastfat/fsctl.c
index b7e576d2d8..6523487368 100644
--- a/drivers/filesystems/fastfat/fsctl.c
+++ b/drivers/filesystems/fastfat/fsctl.c
@@ -280,8 +280,14 @@ VfatHasFileSystem(
                 BootFatX->SysType[2] != 'T' ||
                 BootFatX->SysType[3] != 'X')
             {
-                DPRINT1("SysType %c%c%c%c\n", BootFatX->SysType[0],
BootFatX->SysType[1], BootFatX->SysType[2], BootFatX->SysType[3]);
-                *RecognizedFS=FALSE;
+                DPRINT1("SysType %02X%02X%02X%02X (%c%c%c%c)\n",
+                        BootFatX->SysType[0], BootFatX->SysType[1],
BootFatX->SysType[2], BootFatX->SysType[3],
+                        isprint(BootFatX->SysType[0]) ? BootFatX->SysType[0] :
'.',
+                        isprint(BootFatX->SysType[1]) ? BootFatX->SysType[1] :
'.',
+                        isprint(BootFatX->SysType[2]) ? BootFatX->SysType[2] :
'.',
+                        isprint(BootFatX->SysType[3]) ? BootFatX->SysType[3] :
'.');
+
+                *RecognizedFS = FALSE;
             }
 
             if (*RecognizedFS &&