DRIVE_GetFreeSpace() is supposed to *always* return 0 for "avail"

on CD-ROMs, even if CD-ROM is *not* mounted and thus the mount point normally returns the "avail" of the corresponding partition. Cleaned up GetDiskFreeSpaceA.

DRIVE_GetFreeSpace() is supposed to always return 0 for "avail"
bd86d18f · Andreas Mohr · Alexandre Julliard · e908fd38 · bd86d18f
Commit bd86d18f authored Jun 13, 2000 by Andreas Mohr Committed by Alexandre Julliard Jun 13, 2000
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Showing with 21 additions and 19 deletions

drive.c files/drive.c +21 -19

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--- a/files/drive.c
+++ b/files/drive.c
@@ -903,8 +903,16 @@ static int DRIVE_GetFreeSpace( int drive, PULARGE_INTEGER size,
 #endif
    size->s.LowPart = (DWORD)bigsize;
    size->s.HighPart = (DWORD)(bigsize>>32);
-    available->s.LowPart = (DWORD)bigavail;
-    available->s.HighPart = (DWORD)(bigavail>>32);
+    if (DRIVE_GetType(drive) == TYPE_CDROM)
+    { /* ALWAYS 0, even if no real CD-ROM mounted there !! */
+	available->s.LowPart = 0;
+	available->s.HighPart = 0;
+    }
+    else
+    {
+	available->s.LowPart = (DWORD)bigavail;
+	available->s.HighPart = (DWORD)(bigavail>>32);
+    }
    return 1;
 }

@@ -973,7 +981,7 @@ BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
                                   LPDWORD sector_bytes, LPDWORD free_clusters,
                                   LPDWORD total_clusters )
 {
-    int	drive;
+    int	drive, sec_size;
    ULARGE_INTEGER size,available;
    LPCSTR path;
    DWORD cluster_sec;
@@ -1000,32 +1008,26 @@ BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,

    /* Cap the size and available at 2GB as per specs.  */
    if ((size.s.HighPart) ||(size.s.LowPart > 0x7fffffff))
-	{
-	  size.s.HighPart = 0;
-	  size.s.LowPart = 0x7fffffff;
-	}
+    {
+	size.s.HighPart = 0;
+	size.s.LowPart = 0x7fffffff;
+    }
    if ((available.s.HighPart) ||(available.s.LowPart > 0x7fffffff))
-      {
+    {
 	available.s.HighPart =0;
 	available.s.LowPart = 0x7fffffff;
-      }
-    if (DRIVE_GetType(drive)==TYPE_CDROM) {
-	if (sector_bytes)
-	*sector_bytes    = 2048;
-	size.s.LowPart            /= 2048;
-	available.s.LowPart       /= 2048;
-    } else {
-	if (sector_bytes)
-	*sector_bytes    = 512;
-	size.s.LowPart            /= 512;
-	available.s.LowPart       /= 512;
    }
+    sec_size = (DRIVE_GetType(drive)==TYPE_CDROM) ? 2048 : 512;
+    size.s.LowPart            /= sec_size;
+    available.s.LowPart       /= sec_size;
    /* fixme: probably have to adjust those variables too for CDFS */
    cluster_sec = 1;
    while (cluster_sec * 65536 < size.s.LowPart) cluster_sec *= 2;

    if (cluster_sectors)
 	*cluster_sectors = cluster_sec;
+    if (sector_bytes)
+	*sector_bytes    = sec_size;
    if (free_clusters)
 	*free_clusters   = available.s.LowPart / cluster_sec;
    if (total_clusters)