Changeset 72273 in vbox for trunk/src/VBox/Runtime/tools

Timestamp:

May 21, 2018 12:51:27 PM (7 years ago)

Author:

vboxsync

Message:

IPRT: Tweaked ntfsvfs.cpp and RTCp.cpp so it's patch files, provided the size doesn't change and they're large enough to not live in the MFT. This is very crude, but it's enormously helpful for tweaking the kernel.

File:

• trunk/src/VBox/Runtime/tools/RTCp.cpp (modified) (5 diffs)

trunk/src/VBox/Runtime/tools/RTCp.cpp

@@ -61 +61 @@
     /** -x, --one-filesystem. */
     bool            fOneFileSystem;
+
+    /** Special --no-replace-nor-trucate hack for basic NTFS write support. */
+    bool            fNoReplaceNorTruncate;
 
     /** Number of sources. */
@@ -143 +146 @@
                 {
                     RTVFSFILE hVfsDst;
-                    rc = RTVfsChainOpenFile(pszDst, RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_WRITE,
-                                            &hVfsDst, &offError, RTErrInfoInitStatic(&ErrInfo));
+                    uint64_t fDstFlags = (pOpts->fNoReplaceNorTruncate ? RTFILE_O_OPEN_CREATE : RTFILE_O_CREATE_REPLACE)
+                                       | RTFILE_O_READWRITE | RTFILE_O_DENY_WRITE | (0666 << RTFILE_O_CREATE_MODE_SHIFT);
+                    rc = RTVfsChainOpenFile(pszDst, fDstFlags, &hVfsDst, &offError, RTErrInfoInitStatic(&ErrInfo));
                     if (RT_SUCCESS(rc))
                     {
@@ -240 +244 @@
         { "--verbose",                          'v', RTGETOPT_REQ_NOTHING },
         { "--one-file-system",                  'x', RTGETOPT_REQ_NOTHING },
+        { "--no-replace-nor-trucate",          1032, RTGETOPT_REQ_NOTHING },
     };
 
@@ -247 +252 @@
     Opts.fRecursive                 = false;
     Opts.fOneFileSystem             = false;
+    Opts.fNoReplaceNorTruncate      = false;
     Opts.pszDestination             = NULL;
     Opts.cSources                   = 0;
@@ -303 +309 @@
                     break;
 
+                case 1032:
+                    Opts.fNoReplaceNorTruncate = true;
+                    break;
+
                 case 'h':
                     RTPrintf("Usage: to be written\nOption dump:\n");