* Code cleanup:

  - remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)

9 files changed, 539 insertions, 547 deletions

diff --git a/fs/fdos/Makefile b/fs/fdos/Makefile
index af0fff1..c25e744 100644
--- a/fs/fdos/Makefile
+++ b/fs/fdos/Makefile
@@ -28,7 +28,7 @@ include $(TOPDIR)/config.mk
 LIB	= libfdos.a
 
 AOBJS	=
-COBJS	= fat.o vfat.o dev.o fdos.o fs.o subdir.o 
+COBJS	= fat.o vfat.o dev.o fdos.o fs.o subdir.o
 OBJS	= $(AOBJS) $(COBJS)
 
 #CPPFLAGS +=
diff --git a/fs/fdos/dev.c b/fs/fdos/dev.c
index 809156a..5dea5cd 100644
--- a/fs/fdos/dev.c
+++ b/fs/fdos/dev.c
@@ -38,7 +38,7 @@
 static int lastwhere;
 
 /*-----------------------------------------------------------------------------
- * dev_open -- 
+ * dev_open --
  *-----------------------------------------------------------------------------
  */
 int dev_open (void)
@@ -57,17 +57,17 @@ int dev_read (void *buffer, int where, int len)
 
     /* Si on ne desire pas lire a la position courante, il faut un seek      */
     if (where != lastwhere) {
-        if (!fdc_fdos_seek (where)) {
-            PRINTF ("seek error in dev_read");
-            lastwhere = -1;
-            return (-1);
-        }
+	if (!fdc_fdos_seek (where)) {
+	    PRINTF ("seek error in dev_read");
+	    lastwhere = -1;
+	    return (-1);
+	}
     }
-    
+
     if (!fdc_fdos_read (buffer, len)) {
-        PRINTF ("read error\n");
-        lastwhere = -1;
-        return (-1);
+	PRINTF ("read error\n");
+	lastwhere = -1;
+	return (-1);
     }
     lastwhere = where + len;
     return (0);
@@ -84,110 +84,110 @@ int check_dev (BootSector_t *boot, Fs_t *fs)
 
     /* Display Boot header                                                   */
     PRINTF ("Jump to boot code                  0x%02x 0x%02x 0x%02x\n",
-            boot -> jump [0], boot -> jump [1], boot -> jump[2]);
+	    boot -> jump [0], boot -> jump [1], boot -> jump[2]);
     PRINTF ("OEM name & version                 '%*.*s'\n",
-            BANNER_LG, BANNER_LG, boot -> banner );
+	    BANNER_LG, BANNER_LG, boot -> banner );
     PRINTF ("Bytes per sector hopefully 512     %d\n",
-            __le16_to_cpu (boot -> secsiz));
+	    __le16_to_cpu (boot -> secsiz));
     PRINTF ("Cluster size in sectors            %d\n",
-            boot -> clsiz);
+	    boot -> clsiz);
     PRINTF ("Number of reserved (boot) sectors  %d\n",
-            __le16_to_cpu (boot -> nrsvsect));
+	    __le16_to_cpu (boot -> nrsvsect));
     PRINTF ("Number of FAT tables hopefully 2   %d\n",
-            boot -> nfat);
+	    boot -> nfat);
     PRINTF ("Number of directory slots          %d\n",
-            __le16_to_cpu (boot -> dirents));
+	    __le16_to_cpu (boot -> dirents));
     PRINTF ("Total sectors on disk              %d\n",
-            __le16_to_cpu (boot -> psect));
+	    __le16_to_cpu (boot -> psect));
     PRINTF ("Media descriptor=first byte of FAT %d\n",
-            boot -> descr);
+	    boot -> descr);
     PRINTF ("Sectors in FAT                     %d\n",
-            __le16_to_cpu (boot -> fatlen));
+	    __le16_to_cpu (boot -> fatlen));
     PRINTF ("Sectors/track                      %d\n",
-            __le16_to_cpu (boot -> nsect));
+	    __le16_to_cpu (boot -> nsect));
     PRINTF ("Heads                              %d\n",
-            __le16_to_cpu (boot -> nheads));
+	    __le16_to_cpu (boot -> nheads));
     PRINTF ("number of hidden sectors           %d\n",
-            __le32_to_cpu (boot -> nhs));
+	    __le32_to_cpu (boot -> nhs));
     PRINTF ("big total sectors                  %d\n",
-            __le32_to_cpu (boot -> bigsect));
+	    __le32_to_cpu (boot -> bigsect));
     PRINTF ("physical drive ?                   %d\n",
-            boot -> physdrive);
+	    boot -> physdrive);
     PRINTF ("reserved                           %d\n",
-            boot -> reserved);
+	    boot -> reserved);
     PRINTF ("dos > 4.0 diskette                 %d\n",
-            boot -> dos4);
+	    boot -> dos4);
     PRINTF ("serial number                      %d\n",
-            __le32_to_cpu (boot -> serial));
+	    __le32_to_cpu (boot -> serial));
     PRINTF ("disk label                         %*.*s\n",
-            LABEL_LG, LABEL_LG, boot -> label);
+	    LABEL_LG, LABEL_LG, boot -> label);
     PRINTF ("FAT type                           %8.8s\n",
-            boot -> fat_type);
+	    boot -> fat_type);
     PRINTF ("reserved by 2M                     %d\n",
-            boot -> res_2m);
+	    boot -> res_2m);
     PRINTF ("2M checksum (not used)             %d\n",
-            boot -> CheckSum);
+	    boot -> CheckSum);
     PRINTF ("2MF format version                 %d\n",
-            boot -> fmt_2mf);
+	    boot -> fmt_2mf);
     PRINTF ("1 if write track after format      %d\n",
-            boot -> wt);
+	    boot -> wt);
     PRINTF ("data transfer rate on track 0      %d\n",
-            boot -> rate_0);
+	    boot -> rate_0);
     PRINTF ("data transfer rate on track<>0     %d\n",
-            boot -> rate_any);
+	    boot -> rate_any);
     PRINTF ("offset to boot program             %d\n",
-            __le16_to_cpu (boot -> BootP));
+	    __le16_to_cpu (boot -> BootP));
     PRINTF ("T1: information for track 0        %d\n",
-            __le16_to_cpu (boot -> Infp0));
+	    __le16_to_cpu (boot -> Infp0));
     PRINTF ("T2: information for track<>0       %d\n",
-            __le16_to_cpu (boot -> InfpX));
+	    __le16_to_cpu (boot -> InfpX));
     PRINTF ("T3: track sectors size table       %d\n",
-            __le16_to_cpu (boot -> InfTm));
+	    __le16_to_cpu (boot -> InfTm));
     PRINTF ("Format date                        0x%04x\n",
-            __le16_to_cpu (boot -> DateF));
+	    __le16_to_cpu (boot -> DateF));
     PRINTF ("Format time                        0x%04x\n",
-            __le16_to_cpu (boot -> TimeF));
-    
+	    __le16_to_cpu (boot -> TimeF));
+
 
     /* information is extracted from boot sector                           */
     heads = __le16_to_cpu (boot -> nheads);
     sectors = __le16_to_cpu (boot -> nsect);
     fs -> tot_sectors = __le32_to_cpu (boot -> bigsect);
     if (__le16_to_cpu (boot -> psect) != 0) {
-        fs -> tot_sectors = __le16_to_cpu (boot -> psect);
+	fs -> tot_sectors = __le16_to_cpu (boot -> psect);
     }
-    
+
     sect_per_track = heads * sectors;
     tracks = (fs -> tot_sectors + sect_per_track - 1) / sect_per_track;
-    
+
     BootP = __le16_to_cpu (boot -> BootP);
     Infp0 = __le16_to_cpu (boot -> Infp0);
     InfpX = __le16_to_cpu (boot -> InfpX);
     InfTm = __le16_to_cpu (boot -> InfTm);
-    
+
     if (boot -> dos4 == EXTENDED_BOOT &&
-        strncmp( boot->banner,"2M", 2 ) == 0 &&
-        BootP < SZ_STD_SECTOR &&
-        Infp0 < SZ_STD_SECTOR &&
-        InfpX < SZ_STD_SECTOR &&
-        InfTm < SZ_STD_SECTOR &&
-        BootP >= InfTm + 2 &&
-        InfTm >= InfpX &&
-        InfpX >= Infp0 && 
-        Infp0 >= 76 ) {
-
-        return (-1);
+	strncmp( boot->banner,"2M", 2 ) == 0 &&
+	BootP < SZ_STD_SECTOR &&
+	Infp0 < SZ_STD_SECTOR &&
+	InfpX < SZ_STD_SECTOR &&
+	InfTm < SZ_STD_SECTOR &&
+	BootP >= InfTm + 2 &&
+	InfTm >= InfpX &&
+	InfpX >= Infp0 &&
+	Infp0 >= 76 ) {
+
+	return (-1);
     }
 
     if (heads != NB_HEADS ||
-        tracks != NB_TRACKS ||
-        sectors != NB_SECTORS ||
-        __le16_to_cpu (boot -> secsiz) != SZ_STD_SECTOR ||
-        fs -> tot_sectors == 0 ||
-        (fs -> tot_sectors % sectors) != 0) {
-        return (-1);
+	tracks != NB_TRACKS ||
+	sectors != NB_SECTORS ||
+	__le16_to_cpu (boot -> secsiz) != SZ_STD_SECTOR ||
+	fs -> tot_sectors == 0 ||
+	(fs -> tot_sectors % sectors) != 0) {
+	return (-1);
     }
-    
+
     return (0);
 }
 
diff --git a/fs/fdos/dos.h b/fs/fdos/dos.h
index 71701c9..7b27b01 100644
--- a/fs/fdos/dos.h
+++ b/fs/fdos/dos.h
@@ -34,7 +34,7 @@
 
 #define MAX_PATH	128		/* Max size of the MSDOS PATH        */
 #define MAX_DIR_SECS	64		/* Taille max d'un repertoire (en    */
-                                        /* secteurs)                         */
+					/* secteurs)                         */
 /* Misc. definitions                                                         */
 #define DELMARK         '\xe5'
 #define EXTENDED_BOOT   (0x29)
@@ -119,7 +119,6 @@ typedef struct directory {
 } __attribute__ ((packed))  Directory_t;
 
 
-
 #define MAX_VFAT_SUBENTRIES 20
 #define VSE_NAMELEN 13
 
@@ -145,7 +144,7 @@ typedef struct directory {
 
 struct vfat_subentry {
     unsigned char id;		        /* VSE_LAST pour la fin, VSE_MASK    */
-                                        /* pour un VSE                       */
+					/* pour un VSE                       */
     char text1 [VSE1SIZE * 2];          /* Caracteres encodes sur 16 bits    */
     unsigned char attribute;	        /* 0x0f pour les VFAT                */
     unsigned char hash1;		/* toujours 0                        */
@@ -161,7 +160,7 @@ struct vfat_state {
     int status;             /* is now a bit map of 32 bits                   */
     int subentries;
     unsigned char sum;      /* no need to remember the sum for each          */
-                            /*   entry, it is the same anyways               */
+			    /*   entry, it is the same anyways               */
 } __attribute__ ((packed)) ;
 
 /* Conversion macros                                                         */
@@ -174,4 +173,3 @@ struct vfat_state {
 
 
 #endif
-
diff --git a/fs/fdos/fat.c b/fs/fdos/fat.c
index 42df755..2ef2371 100644
--- a/fs/fdos/fat.c
+++ b/fs/fdos/fat.c
@@ -33,24 +33,24 @@
 
 
 /*-----------------------------------------------------------------------------
- * fat_decode -- 
+ * fat_decode --
  *-----------------------------------------------------------------------------
  */
 unsigned int fat_decode (Fs_t *fs, unsigned int num)
 {
     unsigned int start = num * 3 / 2;
     unsigned char *address = fs -> fat_buf + start;
-    
+
     if (num < 2 || start + 1 > (fs -> fat_len * SZ_STD_SECTOR))
-        return 1;
-    
+	return 1;
+
     if (num & 1)
-        return ((address [1] & 0xff) << 4) | ((address [0] & 0xf0 ) >> 4);
+	return ((address [1] & 0xff) << 4) | ((address [0] & 0xf0 ) >> 4);
     else
-        return ((address [1] & 0xf) << 8) | (address [0] & 0xff );
+	return ((address [1] & 0xf) << 8) | (address [0] & 0xff );
 }
 /*-----------------------------------------------------------------------------
- * check_fat -- 
+ * check_fat --
  *-----------------------------------------------------------------------------
  */
 static int check_fat (Fs_t *fs)
@@ -59,48 +59,48 @@ static int check_fat (Fs_t *fs)
 
     /* Cluster verification                                                  */
     for (i = 3 ; i < fs -> num_clus; i++){
-        f = fat_decode (fs, i);
-        if (f < FAT12_LAST && f > fs -> num_clus){
-            /* Wrong cluster number detected                                 */
-            return (-1);
-        }
+	f = fat_decode (fs, i);
+	if (f < FAT12_LAST && f > fs -> num_clus){
+	    /* Wrong cluster number detected                                 */
+	    return (-1);
+	}
     }
     return (0);
 }
 /*-----------------------------------------------------------------------------
- * read_one_fat -- 
+ * read_one_fat --
  *-----------------------------------------------------------------------------
  */
 static int read_one_fat (BootSector_t *boot, Fs_t *fs, int nfat)
 {
     if (dev_read (fs -> fat_buf,
-                  (fs -> fat_start + nfat * fs -> fat_len),
-                  fs -> fat_len) < 0) {
-        return (-1);
+		  (fs -> fat_start + nfat * fs -> fat_len),
+		  fs -> fat_len) < 0) {
+	return (-1);
     }
 
     if (fs -> fat_buf [0] || fs -> fat_buf [1] || fs -> fat_buf [2]) {
-        if ((fs -> fat_buf [0] != boot -> descr &&
-             (fs -> fat_buf [0] != 0xf9 || boot -> descr != MEDIA_STD)) ||
-            fs -> fat_buf [0] < MEDIA_STD){
-            /* Unknown Media                                                 */
-            return (-1);
-        }
-        if (fs -> fat_buf [1] != 0xff || fs -> fat_buf [2] != 0xff){
-            /* FAT doesn't start with good values                            */
-            return (-1);
-        }
+	if ((fs -> fat_buf [0] != boot -> descr &&
+	     (fs -> fat_buf [0] != 0xf9 || boot -> descr != MEDIA_STD)) ||
+	    fs -> fat_buf [0] < MEDIA_STD){
+	    /* Unknown Media                                                 */
+	    return (-1);
+	}
+	if (fs -> fat_buf [1] != 0xff || fs -> fat_buf [2] != 0xff){
+	    /* FAT doesn't start with good values                            */
+	    return (-1);
+	}
     }
 
     if (fs -> num_clus >= FAT12_MAX_NB) {
-        /* Too much clusters                                                 */
-        return (-1);
+	/* Too much clusters                                                 */
+	return (-1);
     }
 
     return check_fat (fs);
 }
 /*-----------------------------------------------------------------------------
- * read_fat -- 
+ * read_fat --
  *-----------------------------------------------------------------------------
  */
 int read_fat (BootSector_t *boot, Fs_t *fs)
@@ -111,35 +111,32 @@ int read_fat (BootSector_t *boot, Fs_t *fs)
     /* Allocate Fat Buffer                                                   */
     buflen = fs -> fat_len * SZ_STD_SECTOR;
     if (fs -> fat_buf) {
-        free (fs -> fat_buf);
+	free (fs -> fat_buf);
     }
 
     if ((fs -> fat_buf = malloc (buflen)) == NULL) {
-        return (-1);
+	return (-1);
     }
 
     /* Try to read each Fat                                                  */
     for (i = 0; i< fs -> nb_fat; i++){
-        if (read_one_fat (boot, fs, i) == 0) {
-            /* Fat is OK                                                     */
-            fs -> num_fat = i;
-            break;
-        }
+	if (read_one_fat (boot, fs, i) == 0) {
+	    /* Fat is OK                                                     */
+	    fs -> num_fat = i;
+	    break;
+	}
     }
 
     if (i == fs -> nb_fat){
-        return (-1);
+	return (-1);
     }
-    
+
     if (fs -> fat_len > (((fs -> num_clus + 2) *
-                          (FAT_BITS / 4) -1 ) / 2 /
-                         SZ_STD_SECTOR + 1)) {
-        return (-1);
+			  (FAT_BITS / 4) -1 ) / 2 /
+			 SZ_STD_SECTOR + 1)) {
+	return (-1);
     }
     return (0);
 }
 
-
- 
-
 #endif
diff --git a/fs/fdos/fdos.c b/fs/fdos/fdos.c
index 8963f42..a29f43d 100644
--- a/fs/fdos/fdos.c
+++ b/fs/fdos/fdos.c
@@ -37,7 +37,7 @@ Fs_t    fs;
 File_t  file;
 
 /*-----------------------------------------------------------------------------
- * dos_open -- 
+ * dos_open --
  *-----------------------------------------------------------------------------
  */
 int dos_open(char *name)
@@ -45,59 +45,59 @@ int dos_open(char *name)
     int lg;
     int entry;
     char *fname;
-    
+
     /* We need to suppress the " char around the name                        */
     if (name [0] == '"') {
-        name ++;
+	name ++;
     }
     lg = strlen (name);
     if (name [lg - 1] == '"') {
-        name [lg - 1] = '\0';
+	name [lg - 1] = '\0';
     }
 
     /* Open file system                                                      */
     if (fs_init (&fs) < 0) {
-        return -1;
+	return -1;
     }
 
     /* Init the file descriptor                                              */
     file.name = name;
     file.fs = &fs;
-    
+
     /* find the subdirectory containing the file                             */
     if (open_subdir (&file) < 0) {
-        return (-1);
+	return (-1);
     }
 
     fname = basename (name);
 
     /* if we try to open root directory                                      */
     if (*fname == '\0') {
-        file.file = file.subdir;
-        return (0);
+	file.file = file.subdir;
+	return (0);
     }
-    
+
     /* find the file in the subdir                                           */
     entry = 0;
     if (vfat_lookup (&file.subdir,
-                     file.fs,
-                     &file.file.dir,
-                     &entry,
-                     0,
-                     fname,
-                     ACCEPT_DIR | ACCEPT_PLAIN | SINGLE | DO_OPEN,
-                     0,
-                     &file.file) != 0) {
-        /* File not found                                                    */
-        printf ("File not found\n");
-        return (-1);
+		     file.fs,
+		     &file.file.dir,
+		     &entry,
+		     0,
+		     fname,
+		     ACCEPT_DIR | ACCEPT_PLAIN | SINGLE | DO_OPEN,
+		     0,
+		     &file.file) != 0) {
+	/* File not found                                                    */
+	printf ("File not found\n");
+	return (-1);
     }
 
     return 0;
 }
 
 /*-----------------------------------------------------------------------------
- * dos_read -- 
+ * dos_read --
  *-----------------------------------------------------------------------------
  */
 int dos_read (ulong addr)
@@ -106,27 +106,27 @@ int dos_read (ulong addr)
 
     /* Try to boot a directory ?                                             */
     if (file.file.dir.attr & (ATTR_DIRECTORY | ATTR_VOLUME)) {
-        printf ("Unable to boot %s !!\n", file.name);
-        return (-1);
+	printf ("Unable to boot %s !!\n", file.name);
+	return (-1);
     }
     while (read < file.file.FileSize) {
-        PRINTF ("read_file (%ld)\n", (file.file.FileSize - read));
-        nb = read_file (&fs,
-                        &file.file,
-                        (char *)addr + read,
-                        read,
-                        (file.file.FileSize - read));
-        PRINTF ("read_file -> %d\n", nb);
-        if (nb < 0) {
-            printf ("read error\n");
-            return (-1);
-        }
-        read += nb;
+	PRINTF ("read_file (%ld)\n", (file.file.FileSize - read));
+	nb = read_file (&fs,
+			&file.file,
+			(char *)addr + read,
+			read,
+			(file.file.FileSize - read));
+	PRINTF ("read_file -> %d\n", nb);
+	if (nb < 0) {
+	    printf ("read error\n");
+	    return (-1);
+	}
+	read += nb;
     }
     return (read);
 }
 /*-----------------------------------------------------------------------------
- * dos_dir -- 
+ * dos_dir --
  *-----------------------------------------------------------------------------
  */
 int dos_dir (void)
@@ -134,39 +134,39 @@ int dos_dir (void)
     int entry;
     Directory_t dir;
     char *name;
-    
-    
+
+
     if ((file.file.dir.attr & ATTR_DIRECTORY) == 0) {
-        printf ("%s: not a directory !!\n", file.name);
-        return (1);
+	printf ("%s: not a directory !!\n", file.name);
+	return (1);
     }
     entry = 0;
     if ((name = malloc (MAX_VNAMELEN + 1)) == NULL) {
-        PRINTF ("Allcation error\n");
-        return (1);
+	PRINTF ("Allcation error\n");
+	return (1);
     }
-    
+
     while (vfat_lookup (&file.file,
-                        file.fs,
-                        &dir,
-                        &entry,
-                        0,
-                        NULL,
-                        ACCEPT_DIR | ACCEPT_PLAIN | MATCH_ANY,
-                        name,
-                        NULL) == 0) {
-        /* Display file info                                                 */
-        printf ("%3.3s %9d %s %02d %04d %02d:%02d:%02d %s\n",
-                (dir.attr & ATTR_DIRECTORY) ? "dir" : "   ",
-                __le32_to_cpu (dir.size),
-                month [DOS_MONTH (&dir) - 1],
-                DOS_DAY (&dir),
-                DOS_YEAR (&dir),
-                DOS_HOUR (&dir),
-                DOS_MINUTE (&dir),
-                DOS_SEC (&dir),
-                name);
-        
+			file.fs,
+			&dir,
+			&entry,
+			0,
+			NULL,
+			ACCEPT_DIR | ACCEPT_PLAIN | MATCH_ANY,
+			name,
+			NULL) == 0) {
+	/* Display file info                                                 */
+	printf ("%3.3s %9d %s %02d %04d %02d:%02d:%02d %s\n",
+		(dir.attr & ATTR_DIRECTORY) ? "dir" : "   ",
+		__le32_to_cpu (dir.size),
+		month [DOS_MONTH (&dir) - 1],
+		DOS_DAY (&dir),
+		DOS_YEAR (&dir),
+		DOS_HOUR (&dir),
+		DOS_MINUTE (&dir),
+		DOS_SEC (&dir),
+		name);
+
     }
     free (name);
     return (0);
diff --git a/fs/fdos/fdos.h b/fs/fdos/fdos.h
index 18076d8..e28c22f 100644
--- a/fs/fdos/fdos.h
+++ b/fs/fdos/fdos.h
@@ -41,25 +41,25 @@ typedef struct fs
 
     int                 cluster_size;
     int                 num_clus;
-    
+
     int                 fat_start;
     int                 fat_len;
     int                 nb_fat;
     int                 num_fat;
-    
+
     int                 dir_start;
     int                 dir_len;
 
     unsigned char       *fat_buf;
-    
+
 } Fs_t;
 
 /* Data structure describing one file system slot                            */
 typedef struct slot {
     int (*map) (struct fs *fs,
-                struct slot *file,
-                int where,
-                int *len);
+		struct slot *file,
+		int where,
+		int *len);
     unsigned long FileSize;
 
     unsigned short int FirstAbsCluNr;
@@ -89,24 +89,24 @@ int read_fat (BootSector_t *boot, Fs_t *fs);
 
 /* vfat.c                                                                    */
 int vfat_lookup (Slot_t *dir,
-                 Fs_t *fs,
-                 Directory_t *dirent,
-                 int *entry,
-                 int *vfat_start,
-                 char *filename, 
-                 int flags,
-                 char *outname,
-                 Slot_t *file);
+		 Fs_t *fs,
+		 Directory_t *dirent,
+		 int *entry,
+		 int *vfat_start,
+		 char *filename,
+		 int flags,
+		 char *outname,
+		 Slot_t *file);
 
 /* subdir.c                                                                  */
 char *basename (char *name);
 int open_subdir (File_t *desc);
 int open_file (Slot_t *file, Directory_t *dir);
 int read_file (Fs_t *fs,
-               Slot_t *file,
-               char *buf,
-               int where,
-               int len);
+	       Slot_t *file,
+	       char *buf,
+	       int where,
+	       int len);
 void init_subdir (void);
 
 /* fs.c                                                                      */
@@ -114,4 +114,3 @@ int fs_init (Fs_t *fs);
 
 
 #endif
-
diff --git a/fs/fdos/fs.c b/fs/fdos/fs.c
index 68bbde0..3b9d09e 100644
--- a/fs/fdos/fs.c
+++ b/fs/fdos/fs.c
@@ -33,16 +33,16 @@
 
 
 /*-----------------------------------------------------------------------------
- * fill_fs -- Read info on file system 
+ * fill_fs -- Read info on file system
  *-----------------------------------------------------------------------------
  */
 static int fill_fs (BootSector_t *boot, Fs_t *fs)
 {
-    
+
     fs -> fat_start = __le16_to_cpu (boot -> nrsvsect);
     fs -> fat_len = __le16_to_cpu (boot -> fatlen);
     fs -> nb_fat = boot -> nfat;
-    
+
     fs -> dir_start = fs -> fat_start + fs -> nb_fat * fs -> fat_len;
     fs -> dir_len = __le16_to_cpu (boot -> dirents) * MDIR_SIZE / SZ_STD_SECTOR;
     fs -> cluster_size = boot -> clsiz;
@@ -52,7 +52,7 @@ static int fill_fs (BootSector_t *boot, Fs_t *fs)
 }
 
 /*-----------------------------------------------------------------------------
- * fs_init -- 
+ * fs_init --
  *-----------------------------------------------------------------------------
  */
 int fs_init (Fs_t *fs)
@@ -61,60 +61,58 @@ int fs_init (Fs_t *fs)
 
     /* Initialize physical device                                            */
     if (dev_open () < 0) {
-        PRINTF ("Unable to initialize the fdc\n");
-        return (-1);
+	PRINTF ("Unable to initialize the fdc\n");
+	return (-1);
     }
     init_subdir ();
-    
+
     /* Allocate space for read the boot sector                               */
     if ((boot = (BootSector_t *)malloc (sizeof (BootSector_t))) == NULL) {
-        PRINTF ("Unable to allocate space for boot sector\n");
-        return (-1);
+	PRINTF ("Unable to allocate space for boot sector\n");
+	return (-1);
     }
-    
+
     /* read boot sector                                                      */
     if (dev_read (boot, 0, 1)){
-        PRINTF ("Error during boot sector read\n");
-        free (boot);
-        return (-1);
+	PRINTF ("Error during boot sector read\n");
+	free (boot);
+	return (-1);
     }
 
     /* we verify it'a a DOS diskette                                         */
     if (boot -> jump [0] !=  JUMP_0_1 && boot -> jump [0] !=  JUMP_0_2) {
-        PRINTF ("Not a DOS diskette\n");
-        free (boot);
-        return (-1);
+	PRINTF ("Not a DOS diskette\n");
+	free (boot);
+	return (-1);
     }
 
     if (boot -> descr < MEDIA_STD) {
-        /* We handle only recent medias (type F0)                            */
-        PRINTF ("unrecognized diskette type\n");
-        free (boot);
-        return (-1);
+	/* We handle only recent medias (type F0)                            */
+	PRINTF ("unrecognized diskette type\n");
+	free (boot);
+	return (-1);
     }
 
     if (check_dev (boot, fs) < 0) {
-        PRINTF ("Bad diskette\n");
-        free (boot);
-        return (-1);
+	PRINTF ("Bad diskette\n");
+	free (boot);
+	return (-1);
     }
-    
+
     if (fill_fs (boot, fs) < 0) {
-        free (boot);
+	free (boot);
 
-        return (-1);
+	return (-1);
     }
 
     /* Read FAT                                                              */
     if (read_fat (boot, fs) < 0) {
-        free (boot);
-        return (-1);
+	free (boot);
+	return (-1);
     }
 
     free (boot);
     return (0);
 }
 
-
-
 #endif
diff --git a/fs/fdos/subdir.c b/fs/fdos/subdir.c
index 5911f2e..97b2504 100644
--- a/fs/fdos/subdir.c
+++ b/fs/fdos/subdir.c
@@ -38,11 +38,11 @@ static unsigned char cache [SZ_STD_SECTOR];
 #define min(x,y) ((x)<(y)?(x):(y))
 
 static int descend (Slot_t *parent,
-             Fs_t *fs,
-                    char *path);
+	     Fs_t *fs,
+		    char *path);
 
 /*-----------------------------------------------------------------------------
- * init_subdir -- 
+ * init_subdir --
  *-----------------------------------------------------------------------------
  */
 void init_subdir (void)
@@ -50,7 +50,7 @@ void init_subdir (void)
     cache_sect = -1;
 }
 /*-----------------------------------------------------------------------------
- * basename -- 
+ * basename --
  *-----------------------------------------------------------------------------
  */
 char *basename (char *name)
@@ -58,32 +58,32 @@ char *basename (char *name)
     register char *cptr;
 
     if (!name || !*name) {
-        return ("");
+	return ("");
     }
-    
+
     for (cptr= name; *cptr++; );
     while (--cptr >= name) {
 	if (*cptr == '/')    {
-            return (cptr + 1);
+	    return (cptr + 1);
 	}
     }
     return(name);
 }
 /*-----------------------------------------------------------------------------
- * root_map -- 
+ * root_map --
  *-----------------------------------------------------------------------------
  */
 static int root_map (Fs_t *fs, Slot_t *file, int where, int *len)
 {
     *len = min (*len, fs -> dir_len * SZ_STD_SECTOR - where);
     if (*len < 0 ) {
-        *len = 0;
-        return (-1);
+	*len = 0;
+	return (-1);
     }
     return fs -> dir_start * SZ_STD_SECTOR + where;
 }
 /*-----------------------------------------------------------------------------
- * normal_map -- 
+ * normal_map --
  *-----------------------------------------------------------------------------
  */
 static int normal_map (Fs_t *fs, Slot_t *file, int where, int *len)
@@ -102,60 +102,60 @@ static int normal_map (Fs_t *fs, Slot_t *file, int where, int *len)
     *len = min (*len, file -> FileSize - where);
 
     if (*len < 0 ) {
-        *len = 0;
-        return (0);
+	*len = 0;
+	return (0);
     }
 
     if (file -> FirstAbsCluNr < 2){
-        *len = 0;
-        return (0);
+	*len = 0;
+	return (0);
     }
 
     RelCluNr = where / clus_size;
-	
+
     if (RelCluNr >= file -> PreviousRelCluNr){
-        CurCluNr = file -> PreviousRelCluNr;
-        AbsCluNr = file -> PreviousAbsCluNr;
+	CurCluNr = file -> PreviousRelCluNr;
+	AbsCluNr = file -> PreviousAbsCluNr;
     } else {
-        CurCluNr = 0;
-        AbsCluNr = file -> FirstAbsCluNr;
+	CurCluNr = 0;
+	AbsCluNr = file -> FirstAbsCluNr;
     }
 
 
     NrClu = (offset + *len - 1) / clus_size;
     while (CurCluNr <= RelCluNr + NrClu) {
-        if (CurCluNr == RelCluNr){
-            /* we have reached the beginning of our zone. Save
-             * coordinates */
-            file -> PreviousRelCluNr = RelCluNr;
-            file -> PreviousAbsCluNr = AbsCluNr;
-        }
-        NewCluNr = fat_decode (fs, AbsCluNr);
-        if (NewCluNr == 1 || NewCluNr == 0) {
-            PRINTF("Fat problem while decoding %d %x\n", 
-                    AbsCluNr, NewCluNr);
-            return (-1);
-        }
-        if (CurCluNr == RelCluNr + NrClu) {
-            break;
-        }
-
-        if (CurCluNr < RelCluNr && NewCluNr == FAT12_END) {
-            *len = 0;
-            return 0;
-        }
-
-        if (CurCluNr >= RelCluNr && NewCluNr != AbsCluNr + 1)
-            break;
-        CurCluNr++;
-        AbsCluNr = NewCluNr;
+	if (CurCluNr == RelCluNr){
+	    /* we have reached the beginning of our zone. Save
+	     * coordinates */
+	    file -> PreviousRelCluNr = RelCluNr;
+	    file -> PreviousAbsCluNr = AbsCluNr;
+	}
+	NewCluNr = fat_decode (fs, AbsCluNr);
+	if (NewCluNr == 1 || NewCluNr == 0) {
+	    PRINTF("Fat problem while decoding %d %x\n",
+		    AbsCluNr, NewCluNr);
+	    return (-1);
+	}
+	if (CurCluNr == RelCluNr + NrClu) {
+	    break;
+	}
+
+	if (CurCluNr < RelCluNr && NewCluNr == FAT12_END) {
+	    *len = 0;
+	    return 0;
+	}
+
+	if (CurCluNr >= RelCluNr && NewCluNr != AbsCluNr + 1)
+	    break;
+	CurCluNr++;
+	AbsCluNr = NewCluNr;
     }
 
     *len = min (*len, (1 + CurCluNr - RelCluNr) * clus_size - offset);
 
     return (((file -> PreviousAbsCluNr - 2) * fs -> cluster_size +
-             fs -> dir_start + fs -> dir_len) *
-            SZ_STD_SECTOR + offset);
+	     fs -> dir_start + fs -> dir_len) *
+	    SZ_STD_SECTOR + offset);
 }
 /*-----------------------------------------------------------------------------
  * open_subdir -- open the subdir containing the file
@@ -166,13 +166,13 @@ int open_subdir (File_t *desc)
     char *pathname;
     char *tmp, *s, *path;
     char terminator;
-    
+
     if ((pathname = (char *)malloc (MAX_PATH)) == NULL) {
-        return (-1);
+	return (-1);
     }
-    
+
     strcpy (pathname, desc -> name);
-    
+
     /* Suppress file name                                                    */
     tmp = basename (pathname);
     *tmp = '\0';
@@ -182,68 +182,68 @@ int open_subdir (File_t *desc)
     desc -> subdir.FileSize = -1;
     desc -> subdir.map = root_map;
     desc -> subdir.dir.attr = ATTR_DIRECTORY;
-    
+
     tmp = pathname;
     for (s = tmp; ; ++s) {
-        if (*s == '/' || *s == '\0') {
-            path = tmp;
-            terminator = *s;
-            *s = '\0';
-            if (s != tmp && strcmp (path,".")) {
-                if (descend (&desc -> subdir, desc -> fs, path) < 0) {
-                    free (pathname);
-                    return (-1);
-                }
-            }
-            if (terminator == 0) {
-                break;
-            }
-            tmp = s + 1;
-        }
+	if (*s == '/' || *s == '\0') {
+	    path = tmp;
+	    terminator = *s;
+	    *s = '\0';
+	    if (s != tmp && strcmp (path,".")) {
+		if (descend (&desc -> subdir, desc -> fs, path) < 0) {
+		    free (pathname);
+		    return (-1);
+		}
+	    }
+	    if (terminator == 0) {
+		break;
+	    }
+	    tmp = s + 1;
+	}
     }
     free (pathname);
     return (0);
 }
 /*-----------------------------------------------------------------------------
- * descend -- 
+ * descend --
  *-----------------------------------------------------------------------------
  */
 static int descend (Slot_t *parent,
-             Fs_t *fs,
-             char *path)
+	     Fs_t *fs,
+	     char *path)
 {
     int entry;
     Slot_t SubDir;
 
     if(path[0] == '\0' || strcmp (path, ".") == 0) {
-        return (0);
+	return (0);
     }
-    
+
 
     entry = 0;
     if (vfat_lookup (parent,
-                     fs,
-                     &(SubDir.dir),
-                     &entry,
-                     0,
-                     path,
-                     ACCEPT_DIR | SINGLE | DO_OPEN,
-                     0,
-                     &SubDir) == 0) {
-        *parent = SubDir;
-        return (0);
+		     fs,
+		     &(SubDir.dir),
+		     &entry,
+		     0,
+		     path,
+		     ACCEPT_DIR | SINGLE | DO_OPEN,
+		     0,
+		     &SubDir) == 0) {
+	*parent = SubDir;
+	return (0);
     }
 
     if (strcmp(path, "..") == 0) {
-        parent -> FileSize = -1;
-        parent -> FirstAbsCluNr = 0;
-        parent -> map = root_map;
-        return (0);
+	parent -> FileSize = -1;
+	parent -> FirstAbsCluNr = 0;
+	parent -> map = root_map;
+	return (0);
     }
     return (-1);
 }
 /*-----------------------------------------------------------------------------
- * open_file -- 
+ * open_file --
  *-----------------------------------------------------------------------------
  */
 int open_file (Slot_t *file, Directory_t *dir)
@@ -255,17 +255,17 @@ int open_file (Slot_t *file, Directory_t *dir)
 
     if(first == 0 &&
        (dir -> attr & ATTR_DIRECTORY) != 0) {
-        file -> FirstAbsCluNr = 0;
-        file -> FileSize = -1;
-        file -> map = root_map;
-        return (0);
+	file -> FirstAbsCluNr = 0;
+	file -> FileSize = -1;
+	file -> map = root_map;
+	return (0);
     }
-	
+
     if ((dir -> attr & ATTR_DIRECTORY) != 0) {
-        size = (1UL << 31) - 1;
+	size = (1UL << 31) - 1;
     }
     else {
-        size = __le32_to_cpu (dir -> size);
+	size = __le32_to_cpu (dir -> size);
     }
 
     file -> map = normal_map;
@@ -275,73 +275,73 @@ int open_file (Slot_t *file, Directory_t *dir)
     return (0);
 }
 /*-----------------------------------------------------------------------------
- * read_file -- 
+ * read_file --
  *-----------------------------------------------------------------------------
  */
 int read_file (Fs_t *fs,
-               Slot_t *file,
-               char *buf,
-               int where,
-               int len)
+	       Slot_t *file,
+	       char *buf,
+	       int where,
+	       int len)
 {
     int pos;
     int read, nb, sect, offset;
-    
+
     pos = file -> map (fs, file, where, &len);
     if  (pos < 0) {
-        return -1;
+	return -1;
     }
     if (len == 0) {
-        return (0);
+	return (0);
     }
 
     /* Compute sector number                                                 */
     sect = pos / SZ_STD_SECTOR;
     offset = pos % SZ_STD_SECTOR;
     read = 0;
-    
+
     if (offset) {
-        /* Read doesn't start at the sector beginning. We need to use our    */
-        /* cache                                                             */
-        if (sect != cache_sect) {
-            if (dev_read (cache, sect, 1) < 0) {
-                return (-1);
-            }
-            cache_sect = sect;
-        }
-        nb = min (len, SZ_STD_SECTOR - offset);
-        
-        memcpy (buf, cache + offset, nb);
-        read += nb;
-        len -= nb;
-        sect += 1;
+	/* Read doesn't start at the sector beginning. We need to use our    */
+	/* cache                                                             */
+	if (sect != cache_sect) {
+	    if (dev_read (cache, sect, 1) < 0) {
+		return (-1);
+	    }
+	    cache_sect = sect;
+	}
+	nb = min (len, SZ_STD_SECTOR - offset);
+
+	memcpy (buf, cache + offset, nb);
+	read += nb;
+	len -= nb;
+	sect += 1;
     }
 
     if (len > SZ_STD_SECTOR) {
-        nb = (len - 1) / SZ_STD_SECTOR;
-        if (dev_read (buf + read, sect, nb) < 0) {
-            return ((read) ? read : -1);
-        }
-        /* update sector position                                            */
-        sect += nb;
-
-        /* Update byte position                                              */
-        nb *= SZ_STD_SECTOR;
-        read += nb;
-        len -= nb;
+	nb = (len - 1) / SZ_STD_SECTOR;
+	if (dev_read (buf + read, sect, nb) < 0) {
+	    return ((read) ? read : -1);
+	}
+	/* update sector position                                            */
+	sect += nb;
+
+	/* Update byte position                                              */
+	nb *= SZ_STD_SECTOR;
+	read += nb;
+	len -= nb;
     }
 
     if (len) {
-        if (sect != cache_sect) {
-            if (dev_read (cache, sect, 1) < 0) {
-                return ((read) ? read : -1);
-                cache_sect = -1;
-            }
-            cache_sect = sect;
-        }
-        
-        memcpy (buf + read, cache, len);
-        read += len;
+	if (sect != cache_sect) {
+	    if (dev_read (cache, sect, 1) < 0) {
+		return ((read) ? read : -1);
+		cache_sect = -1;
+	    }
+	    cache_sect = sect;
+	}
+
+	memcpy (buf + read, cache, len);
+	read += len;
     }
     return (read);
 }
diff --git a/fs/fdos/vfat.c b/fs/fdos/vfat.c
index f828795..46a464b 100644
--- a/fs/fdos/vfat.c
+++ b/fs/fdos/vfat.c
@@ -32,10 +32,10 @@
 #include "fdos.h"
 
 static int dir_read (Fs_t *fs,
-                     Slot_t *dir,
-                     Directory_t *dirent,
-                     int num,
-                     struct vfat_state *v);
+		     Slot_t *dir,
+		     Directory_t *dirent,
+		     int num,
+		     struct vfat_state *v);
 
 static int unicode_read (char *in, char *out, int num);
 static int match (const char *s, const char *p);
@@ -45,7 +45,7 @@ static char *conv_name (char *name, char *ext, char Case, char *ans);
 
 
 /*-----------------------------------------------------------------------------
- * clear_vfat -- 
+ * clear_vfat --
  *-----------------------------------------------------------------------------
  */
 static void clear_vfat (struct vfat_state *v)
@@ -55,18 +55,18 @@ static void clear_vfat (struct vfat_state *v)
 }
 
 /*-----------------------------------------------------------------------------
- * vfat_lookup -- 
+ * vfat_lookup --
  *-----------------------------------------------------------------------------
  */
 int vfat_lookup (Slot_t *dir,
-                 Fs_t *fs,
-                 Directory_t *dirent,
-                 int *entry,
-                 int *vfat_start,
-                 char *filename, 
-                 int flags,
-                 char *outname,
-                 Slot_t *file)
+		 Fs_t *fs,
+		 Directory_t *dirent,
+		 int *entry,
+		 int *vfat_start,
+		 char *filename,
+		 int flags,
+		 char *outname,
+		 Slot_t *file)
 {
     int found;
     struct vfat_state vfat;
@@ -74,92 +74,92 @@ int vfat_lookup (Slot_t *dir,
     int vfat_present = 0;
 
     if (*entry == -1) {
-        return -1;
+	return -1;
     }
 
     found = 0;
     clear_vfat (&vfat);
     while (1) {
-        if (dir_read (fs, dir, dirent, *entry, &vfat) < 0) {
-            if (vfat_start) {
-                *vfat_start = *entry;
-            }
-            break;
-        }
-        (*entry)++;
-
-        /* Empty slot                                                        */
-        if (dirent -> name[0] == '\0'){
-            if (vfat_start == 0) {
-                break;
-            }
-            continue;
-        }
-
-        if (dirent -> attr == ATTR_VSE) {
-            /* VSE entry, continue                                           */
-            continue;
-        }
-        if ( (dirent -> name [0] == DELMARK) ||
-             ((dirent -> attr & ATTR_DIRECTORY) != 0 &&
-              (flags & ACCEPT_DIR) == 0) ||
-             ((dirent -> attr & ATTR_VOLUME) != 0 &&
-              (flags & ACCEPT_LABEL) == 0) ||
-             (((dirent -> attr & (ATTR_DIRECTORY | ATTR_VOLUME)) == 0) &&
-              (flags & ACCEPT_PLAIN) == 0)) {
-            clear_vfat (&vfat);
-            continue;
-        }
-
-        vfat_present = check_vfat (&vfat, dirent);
-        if (vfat_start) {
-            *vfat_start = *entry - 1;
-            if (vfat_present) {
-                *vfat_start -= vfat.subentries;
-            }
-        }
-
-        if (dirent -> attr & ATTR_VOLUME) {
-            strncpy (newfile, dirent -> name, 8);
-            newfile [8] = '\0';
-            strncat (newfile, dirent -> ext, 3);
-            newfile [11] = '\0';
-        }
-        else {
-            conv_name (dirent -> name, dirent -> ext, dirent -> Case, newfile);
-        }
-
-        if (flags & MATCH_ANY) {
-            found = 1;
-            break;
-        }
-
-        if ((vfat_present && match (vfat.name, filename)) ||
-            (match (newfile, filename))) {
-            found = 1;
-            break;
-        }
-        clear_vfat (&vfat);
+	if (dir_read (fs, dir, dirent, *entry, &vfat) < 0) {
+	    if (vfat_start) {
+		*vfat_start = *entry;
+	    }
+	    break;
+	}
+	(*entry)++;
+
+	/* Empty slot                                                        */
+	if (dirent -> name[0] == '\0'){
+	    if (vfat_start == 0) {
+		break;
+	    }
+	    continue;
+	}
+
+	if (dirent -> attr == ATTR_VSE) {
+	    /* VSE entry, continue                                           */
+	    continue;
+	}
+	if ( (dirent -> name [0] == DELMARK) ||
+	     ((dirent -> attr & ATTR_DIRECTORY) != 0 &&
+	      (flags & ACCEPT_DIR) == 0) ||
+	     ((dirent -> attr & ATTR_VOLUME) != 0 &&
+	      (flags & ACCEPT_LABEL) == 0) ||
+	     (((dirent -> attr & (ATTR_DIRECTORY | ATTR_VOLUME)) == 0) &&
+	      (flags & ACCEPT_PLAIN) == 0)) {
+	    clear_vfat (&vfat);
+	    continue;
+	}
+
+	vfat_present = check_vfat (&vfat, dirent);
+	if (vfat_start) {
+	    *vfat_start = *entry - 1;
+	    if (vfat_present) {
+		*vfat_start -= vfat.subentries;
+	    }
+	}
+
+	if (dirent -> attr & ATTR_VOLUME) {
+	    strncpy (newfile, dirent -> name, 8);
+	    newfile [8] = '\0';
+	    strncat (newfile, dirent -> ext, 3);
+	    newfile [11] = '\0';
+	}
+	else {
+	    conv_name (dirent -> name, dirent -> ext, dirent -> Case, newfile);
+	}
+
+	if (flags & MATCH_ANY) {
+	    found = 1;
+	    break;
+	}
+
+	if ((vfat_present && match (vfat.name, filename)) ||
+	    (match (newfile, filename))) {
+	    found = 1;
+	    break;
+	}
+	clear_vfat (&vfat);
     }
 
     if (found) {
-        if ((flags & DO_OPEN) && file) {
-            if (open_file (file, dirent) < 0) {
-                return (-1);
-            }
-        }
-        if (outname) {
-            if (vfat_present) {
-                strcpy (outname, vfat.name);
-            }
-            else {
-                strcpy (outname, newfile);
-            }
-        }
-        return (0);                    /* File found                         */
+	if ((flags & DO_OPEN) && file) {
+	    if (open_file (file, dirent) < 0) {
+		return (-1);
+	    }
+	}
+	if (outname) {
+	    if (vfat_present) {
+		strcpy (outname, vfat.name);
+	    }
+	    else {
+		strcpy (outname, newfile);
+	    }
+	}
+	return (0);                    /* File found                         */
     } else {
-        *entry = -1;
-        return -1;                      /* File not found                    */
+	*entry = -1;
+	return -1;                      /* File not found                    */
     }
 }
 
@@ -168,147 +168,147 @@ int vfat_lookup (Slot_t *dir,
  *-----------------------------------------------------------------------------
  */
 static int dir_read (Fs_t *fs,
-              Slot_t *dir,
-              Directory_t *dirent,
-              int num,
-              struct vfat_state *v)
+	      Slot_t *dir,
+	      Directory_t *dirent,
+	      int num,
+	      struct vfat_state *v)
 {
 
     /* read the directory entry                                              */
     if (read_file (fs,
-                   dir,
-                   (char *)dirent,
-                   num * MDIR_SIZE,
-                   MDIR_SIZE) != MDIR_SIZE) {
-        return (-1);
+		   dir,
+		   (char *)dirent,
+		   num * MDIR_SIZE,
+		   MDIR_SIZE) != MDIR_SIZE) {
+	return (-1);
     }
 
     if (v && (dirent -> attr == ATTR_VSE)) {
-        struct vfat_subentry *vse;
-        unsigned char id, last_flag;
-        char *c;
-
-        vse = (struct vfat_subentry *) dirent;
-        id = vse -> id & VSE_MASK;
-        last_flag = (vse -> id & VSE_LAST);
-        if (id > MAX_VFAT_SUBENTRIES) {
-            /* Invalid VSE entry                                             */
-            return (-1);
-        }
-
-
-        /* Decode VSE                                                        */
-        if(v -> sum != vse -> sum) {
-            clear_vfat (v);
-            v -> sum = vse -> sum;
-        }
-
-        
-        v -> status |= 1 << (id - 1);
-        if (last_flag) {
-            v -> subentries = id;
-        }
-
-        c = &(v -> name [VSE_NAMELEN * (id - 1)]);
-        c += unicode_read (vse->text1, c, VSE1SIZE);
-        c += unicode_read (vse->text2, c, VSE2SIZE);
-        c += unicode_read (vse->text3, c, VSE3SIZE);
-		
-        if (last_flag) {
-            *c = '\0';	        /* Null terminate long name                  */
-        }
-        
+	struct vfat_subentry *vse;
+	unsigned char id, last_flag;
+	char *c;
+
+	vse = (struct vfat_subentry *) dirent;
+	id = vse -> id & VSE_MASK;
+	last_flag = (vse -> id & VSE_LAST);
+	if (id > MAX_VFAT_SUBENTRIES) {
+	    /* Invalid VSE entry                                             */
+	    return (-1);
+	}
+
+
+	/* Decode VSE                                                        */
+	if(v -> sum != vse -> sum) {
+	    clear_vfat (v);
+	    v -> sum = vse -> sum;
+	}
+
+
+	v -> status |= 1 << (id - 1);
+	if (last_flag) {
+	    v -> subentries = id;
+	}
+
+	c = &(v -> name [VSE_NAMELEN * (id - 1)]);
+	c += unicode_read (vse->text1, c, VSE1SIZE);
+	c += unicode_read (vse->text2, c, VSE2SIZE);
+	c += unicode_read (vse->text3, c, VSE3SIZE);
+
+	if (last_flag) {
+	    *c = '\0';	        /* Null terminate long name                  */
+	}
+
     }
     return (0);
 }
 
 /*-----------------------------------------------------------------------------
- * unicode_read -- 
+ * unicode_read --
  *-----------------------------------------------------------------------------
  */
 static int unicode_read (char *in, char *out, int num)
 {
     int j;
-    
+
     for (j = 0; j < num; ++j) {
-        if (in [1])
-            *out = '_';
-        else
-            *out = in [0];
-        out ++;
-        in += 2;
+	if (in [1])
+	    *out = '_';
+	else
+	    *out = in [0];
+	out ++;
+	in += 2;
     }
     return num;
 }
 
 /*-----------------------------------------------------------------------------
- * match -- 
+ * match --
  *-----------------------------------------------------------------------------
  */
 static int match (const char *s, const char *p)
 {
 
     for (; *p != '\0'; ) {
-        if (toupper (*s) != toupper (*p)) {
-            return (0);
-        }
-        p++;
-        s++;
+	if (toupper (*s) != toupper (*p)) {
+	    return (0);
+	}
+	p++;
+	s++;
     }
-    
+
     if (*s != '\0') {
-        return (0);
+	return (0);
     }
     else {
-        return (1);
+	return (1);
     }
 }
 /*-----------------------------------------------------------------------------
- * sum_shortname -- 
+ * sum_shortname --
  *-----------------------------------------------------------------------------
  */
 static unsigned char sum_shortname (char *name)
 {
     unsigned char sum;
     int j;
-    
+
     for (j = sum = 0; j < 11; ++j) {
-        sum = ((sum & 1) ? 0x80 : 0) + (sum >> 1) +
-            (name [j] ? name [j] : ' ');
+	sum = ((sum & 1) ? 0x80 : 0) + (sum >> 1) +
+	    (name [j] ? name [j] : ' ');
     }
     return (sum);
 }
 /*-----------------------------------------------------------------------------
- * check_vfat -- 
+ * check_vfat --
  * Return 1 if long name is valid, 0 else
  *-----------------------------------------------------------------------------
  */
 static int check_vfat (struct vfat_state *v, Directory_t *dir)
 {
     char name[12];
-    
+
     if (v -> subentries == 0) {
-        return 0;
+	return 0;
     }
-    
+
     strncpy (name, dir -> name, 8);
     strncpy (name + 8, dir -> ext, 3);
     name [11] = '\0';
-    
+
     if (v -> sum != sum_shortname (name)) {
-        return 0;
+	return 0;
     }
-    
+
     if( (v -> status & ((1 << v -> subentries) - 1)) !=
-        (1 << v -> subentries) - 1) {
-        return 0;
+	(1 << v -> subentries) - 1) {
+	return 0;
     }
     v->name [VSE_NAMELEN * v -> subentries] = 0;
-    
+
     return 1;
 }
 /*-----------------------------------------------------------------------------
- * conv_name -- 
+ * conv_name --
  *-----------------------------------------------------------------------------
  */
 static char *conv_name (char *name, char *ext, char Case, char *ans)
@@ -318,37 +318,37 @@ static char *conv_name (char *name, char *ext, char Case, char *ans)
 
     i = 0;
     while (i < 8 && name [i] != ' ' && name [i] != '\0') {
-        tname [i] = name [i];
-        i++;
+	tname [i] = name [i];
+	i++;
     }
     tname [i] = '\0';
-    
+
     if (Case & BASECASE) {
-        for (i = 0; i < 8 && tname [i]; i++) {
-            tname [i] = tolower (tname [i]);
-        }
+	for (i = 0; i < 8 && tname [i]; i++) {
+	    tname [i] = tolower (tname [i]);
+	}
     }
 
     i = 0;
     while (i < 3 && ext [i] != ' ' && ext [i] != '\0') {
-        text [i] = ext [i];
-        i++;
+	text [i] = ext [i];
+	i++;
     }
     text [i] = '\0';
 
     if (Case & EXTCASE){
-        for (i = 0; i < 3 && text [i]; i++) {
-            text [i] = tolower (text [i]);
-        }
+	for (i = 0; i < 3 && text [i]; i++) {
+	    text [i] = tolower (text [i]);
+	}
     }
 
     if (*text) {
-        strcpy (ans, tname);
-        strcat (ans, ".");
-        strcat (ans, text);
+	strcpy (ans, tname);
+	strcat (ans, ".");
+	strcat (ans, text);
     }
     else {
-        strcpy(ans, tname);
+	strcpy(ans, tname);
     }
     return (ans);
 }