Changeset 826 for trunk/dll/wrappers.c

Timestamp:

Sep 1, 2007, 11:50:33 PM (18 years ago)

Author:

Gregg Young

Message:

Add xDosSetPathInfo to work around FILESTATUSx buffer crossing 64k boundry

File:

• trunk/dll/wrappers.c (modified) (2 diffs)

trunk/dll/wrappers.c

@@ -12 +12 @@
   18 Aug 06 SHL Correct Runtime_Error line number report
   20 Aug 07 GKY Move #pragma alloc_text to end for OpenWatcom compat
+  01 Sep 07 GKY Add xDosSetPathInfo to fix case where FS3 buffer crosses 64k boundry
 
 ***********************************************************************/
 
 #define INCL_WIN
+#define INCL_DOS
+#define INCL_DOSERRORS
 #include <os2.h>
 
@@ -25 +28 @@
 #include "fm3str.h"
 
+APIRET APIENTRY  xDosSetPathInfo(PSZ   pszPathName,
+                                 ULONG ulInfoLevel,
+                                 PVOID pInfoBuf,
+                                 ULONG cbInfoBuf,
+                                 ULONG flOptions)
+{
+    APIRET rc;
+
+    rc = DosSetPathInfo(pszPathName, ulInfoLevel, pInfoBuf, cbInfoBuf, flOptions);
+    if (rc)
+      /* Some kernels to do not handle fs3 buffers that cross 64K boundaries
+        and return ERROR_INVALID_NAME
+        If code works around the problem because if fs3 crosses the boundary
+        fsa2 will not because we don't have enough data on the stack for this
+        to occur 25 Aug 07 SHL
+      */
+        if (rc == ERROR_INVALID_NAME){
+          if (ulInfoLevel == FIL_STANDARD){
+            FILESTATUS3 fs3x;
+            fs3x = *(PFILESTATUS3) pInfoBuf;
+            rc = DosSetPathInfo(pszPathName, ulInfoLevel, &fs3x, sizeof(fs3x), flOptions);
+          }
+          else {
+            EAOP2 eaop2x;
+            eaop2x = *(PEAOP2) pInfoBuf;
+            rc = DosSetPathInfo(pszPathName, ulInfoLevel, &eaop2x, sizeof(eaop2x), flOptions);
+          }
+        }
+    return rc;
+}
 
 PSZ xfgets(PSZ pszBuf, size_t cMaxBytes, FILE * fp, PCSZ pszSrcFile,