diff --git a/libscrub/Makefile.am b/libscrub/Makefile.am

index 477c866..d88cd48 100644

--- a/libscrub/Makefile.am

+++ b/libscrub/Makefile.am

@@ -13,6 +13,7 @@ libscrub_la_SOURCES = \

 	libscrub.c \

 	scrub.h \

 	../src/aes.c \

+	../src/fextent_apply.c \

 	../src/filldentry.c \

 	../src/fillfile.c \

 	../src/genrand.c \

diff --git a/man/scrub.1.in b/man/scrub.1.in

index a1c260a..72b114f 100644

--- a/man/scrub.1.in

+++ b/man/scrub.1.in

@@ -106,6 +106,13 @@ Don't generate random data in parallel with I/O.

 .TP

 \fI-h\fR, \fI--help\fR

 Print a summary of command line options on stderr.

+.TP

+\fI-E\fR, \fI--extent-only\fR

+When scrubbing regular files, scrub only the file extents. This option is

+useful in combination with large sparse files. If used, scrub will skip

+the holes in the sparse file. Use this option with caution, the result may not

+be compliant with cited standards and information about the actual on-disk

+data allocation may leak since only the allocated parts will be scrubbed.

 .SH SCRUB METHODS

 .TP

 .I "nnsa"

diff --git a/src/Makefile.am b/src/Makefile.am

index 0cbd8f7..5de0b68 100644

--- a/src/Makefile.am

+++ b/src/Makefile.am

@@ -3,6 +3,8 @@ bin_PROGRAMS = scrub

 scrub_SOURCES = \

 	aes.c \

 	aes.h \

+	fextent_apply.c \

+	fextent_apply.h \

 	filldentry.c \

 	filldentry.h \

 	fillfile.c \

diff --git a/src/fextent_apply.c b/src/fextent_apply.c

new file mode 100644

index 0000000..31d3210

--- /dev/null

+++ b/src/fextent_apply.c

@@ -0,0 +1,142 @@

+/*

+ * Copyright 2012 Red Hat Inc., Durham, North Carolina.

+ * All Rights Reserved.

+ *

+ * This library is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * This library is distributed in the hope that it will be useful, 

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with this library; if not, write to the Free Software 

+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

+ *

+ * Authors:

+ *      Daniel Kopecek <dkopecek@redhat.com>

+ */

+#include <stdio.h>

+#include <stdint.h>

+#include <stdlib.h>

+#include <string.h>

+#include <unistd.h>

+#include <errno.h>

+

+#include <sys/types.h>

+#include <sys/stat.h>

+#include <sys/ioctl.h>

+#include <sys/file.h>

+

+#include <linux/fs.h>

+#include <linux/fiemap.h>

+

+#ifndef NDEBUG

+# define dP(...)				\

+    do { int  __tmp_errno = errno;		\

+	fprintf(stderr, "DEBUG: "__VA_ARGS__);	\

+	errno = __tmp_errno;			\

+    } while(0)

+#else

+# define dP(...) while(0)

+#endif

+

+int fextent_apply(int fd, int (*function)(int, struct fiemap_extent *, void *), void *arg)

+{

+    int ret = -1;

+    struct stat st;

+    struct fiemap *em;

+    uint32_t extent_count, i;

+

+    // lock, sync, stat

+    if (flock(fd, LOCK_EX) != 0) {

+	dP("flock(%d, LOCK_EX) failed: %s, %d.\n", fd, strerror(errno), errno);

+	return -1;

+    }

+    if (fsync(fd) != 0) {

+	dP("fsync(%d) failed: %s, %d.\n", fd, strerror(errno), errno);

+	goto exit_1;

+    }

+    if (fstat(fd, &st) != 0) {

+	dP("fstat(%d) failed: %s, %d.\n", fd, strerror(errno), errno);

+	goto exit_1;

+    }

+    

+    /*

+     * fiemap => get extent count

+     */

+    em = malloc(sizeof(struct fiemap));

+

+    if (em == NULL) {

+	dP("malloc(%zu) returned NULL!\n", sizeof(struct fiemap));

+	goto exit_1;

+    }

+

+    memset(em, 0, sizeof(struct fiemap));

+

+    em->fm_start = 0;

+    em->fm_length = st.st_size;

+    em->fm_extent_count = 0;

+    em->fm_mapped_extents = 0;

+    em->fm_flags = 0;

+

+    if (ioctl(fd, FS_IOC_FIEMAP, em) != 0) {

+	dP("FS_IOC_FIEMAP: %s, %d.\n", strerror(errno), errno);

+	goto exit_0;

+    }

+

+    extent_count = em->fm_mapped_extents;

+    free(em);

+

+    /*

+     * fiemap => get extents

+     */

+    em = malloc (sizeof(struct fiemap)

+		 + (sizeof(struct fiemap_extent) * extent_count));

+

+    if (em == NULL) {

+	dP("malloc(%zu) returned NULL!\n", sizeof(struct fiemap)

+	   + (sizeof (struct fiemap_extent) * extent_count));

+	goto exit_0;

+    }

+

+    memset(em, 0, sizeof(struct fiemap)

+	   + (sizeof(struct fiemap_extent) * extent_count));

+

+    em[0].fm_start = 0;

+    em[0].fm_length = st.st_size;

+    em[0].fm_extent_count = extent_count;

+    em[0].fm_flags = 0;

+

+    if (ioctl(fd, FS_IOC_FIEMAP, em) != 0) {

+	dP("FS_IOC_FIEMAP: %s, %d.\n", strerror(errno), errno);

+	goto exit_0;

+    }

+   

+    for (i = 0; i < extent_count; ++i) {

+	// seek to extent start

+	if (lseek(fd, em->fm_extents[i].fe_logical, SEEK_SET) == (off_t)-1) {

+	    dP("lseek(%d, %llu, SET) failed: %s, %d.\n",

+	       fd, em->fm_extents[i].fe_logical, strerror(errno), errno);

+	    goto exit_0;

+	}

+

+	ret = function(fd, em->fm_extents + i, arg);

+	if (ret != 0)

+	    goto exit_0;

+    }

+

+    ret = 0;

+  exit_0:

+    // release resources

+    free (em);

+  exit_1:

+    // unlock

+    if (flock(fd, LOCK_UN) != 0)

+	ret = -1;

+

+    return ret;

+}

diff --git a/src/fextent_apply.h b/src/fextent_apply.h

new file mode 100644

index 0000000..40a54ec

--- /dev/null

+++ b/src/fextent_apply.h

@@ -0,0 +1,30 @@

+/*

+ * Copyright 2012 Red Hat Inc., Durham, North Carolina.

+ * All Rights Reserved.

+ *

+ * This library is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * This library is distributed in the hope that it will be useful, 

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with this library; if not, write to the Free Software 

+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

+ *

+ * Authors:

+ *      Daniel Kopecek <dkopecek@redhat.com>

+ */

+#ifndef FEXTENT_APPLY_H

+#define FEXTENT_APPLY_H

+

+#include <linux/fs.h>

+#include <linux/fiemap.h>

+

+int fextent_apply(int fd, int (*function)(int, struct fiemap_extent *, void *), void *arg);

+

+#endif /* FEXTENT_APPLY_H */

diff --git a/src/fillfile.c b/src/fillfile.c

index e0f67b6..a77367f 100644

--- a/src/fillfile.c

+++ b/src/fillfile.c

@@ -42,6 +42,7 @@

 #include "util.h"

 #include "fillfile.h"

+#include "fextent_apply.h"

 static int no_threads = 0;

@@ -57,6 +58,20 @@ struct memstruct {

 extern char *prog;

+struct fillfile_args {

+    char *path;

+    off_t filesize;

+    unsigned char *mem;

+    int memsize;

+    progress_t progress;

+    void *arg;

+    refill_t refill;

+    unsigned char *buf;

+};

+

+int fillextent(int fd, struct fiemap_extent *extent, void *pa);

+int checkextent(int fd, struct fiemap_extent *extent, void *pa);

+

 #if defined(O_DIRECT) && (defined(HAVE_POSIX_MEMALIGN) || defined(HAVE_MEMALIGN))

 # define MY_O_DIRECT O_DIRECT

 #else

@@ -155,11 +170,12 @@ refill_fini(struct memstruct *mp)

  * If 'sparse' is true, only scrub first and last blocks (for testing).

  * The number of bytes written is returned.

  * If 'creat' is true, open with O_CREAT and allow ENOSPC to be non-fatal.

+ * IF 'extentonly' is true, fill only file extents with the given pattern

  */

 off_t

 fillfile(char *path, off_t filesize, unsigned char *mem, int memsize,

          progress_t progress, void *arg, refill_t refill, 

-         bool sparse, bool creat)

+         bool sparse, bool creat, bool extentonly)

 {

     int fd = -1;

     off_t n;

@@ -179,34 +195,58 @@ fillfile(char *path, off_t filesize, unsigned char *mem, int memsize,

     }

     if (fd < 0)

         goto error;

-    do {

-        if (written + memsize > filesize)

-            memsize = filesize - written;

-        if (refill && !sparse) {

-            if (!mp)

-                if (refill_init(&mp, refill, memsize) < 0)

-                    goto error;

-            if (refill_memcpy(mp, mem, memsize, filesize, written) < 0)

-                goto error;

-        }

-        if (sparse && !(written == 0) && !(written + memsize == filesize)) {

-            if (lseek(fd, memsize, SEEK_CUR) < 0)

-                goto error;

-            written += memsize;

-        } else {

-            n = write_all(fd, mem, memsize);

-            if (creat && n < 0 && errno == ENOSPC)

-                break;

-            if (n == 0) {

-                errno = EINVAL; /* write past end of device? */

-                goto error;

-            } else if (n < 0)

-                goto error;

-            written += n;

+

+    if (extentonly) {

+        struct fillfile_args fa;

+

+        fa.path = path;

+        fa.filesize = filesize;

+        fa.mem = mem;

+        fa.memsize = memsize;

+        fa.progress = progress;

+        fa.refill = refill;

+        fa.arg = arg;

+

+        if (fextent_apply(fd, fillextent, &fa) == 0) {

+            written = filesize;

         }

-        if (progress)

-            progress(arg, (double)written/filesize);

-    } while (written < filesize);

+    } else {

+        do {

+            if (written + memsize > filesize)

+                memsize = filesize - written;

+            if (refill && !sparse) {

+                if (!mp) {

+                    if (refill_init(&mp, refill, memsize) < 0) {

+                        goto error;

+                    }

+                }

+                if (refill_memcpy(mp, mem, memsize, filesize, written) < 0) {

+                    goto error;

+                }

+            }

+            if (sparse && !(written == 0) && !(written + memsize == filesize)) {

+                if (lseek(fd, memsize, SEEK_CUR) < 0) {

+                    goto error;

+                }

+                written += memsize;

+            } else {

+                n = write_all(fd, mem, memsize);

+                if (creat && n < 0 && errno == ENOSPC)

+                    break;

+                if (n == 0) {

+                    errno = EINVAL;

+                    goto error;

+                }

+                else if (n < 0) {

+                    goto error;

+                }

+                written += n;

+            }

+            if (progress)

+                progress(arg, (double)written/filesize);

+        } while (written < filesize);

+    }

+

     if (fsync(fd) < 0)

         goto error;

 #if defined(HAVE_POSIX_FADVISE) && defined(POSIX_FADV_DONTNEED)

@@ -230,7 +270,7 @@ error:

  */

 off_t

 checkfile(char *path, off_t filesize, unsigned char *mem, int memsize,

-          progress_t progress, void *arg, bool sparse)

+          progress_t progress, void *arg, bool sparse, bool extentonly)

 {

     int fd = -1;

     off_t n;

@@ -238,8 +278,6 @@ checkfile(char *path, off_t filesize, unsigned char *mem, int memsize,

     unsigned char *buf = NULL;

     int openflags = O_RDONLY;

-    if (!(buf = alloc_buffer(memsize)))

-        goto nomem;

     if (filetype(path) != FILE_CHAR)

         openflags |= MY_O_DIRECT;

     fd = open(path, openflags);

@@ -250,32 +288,60 @@ checkfile(char *path, off_t filesize, unsigned char *mem, int memsize,

     }

     if (fd < 0)

         goto error;

-    do {

-        if (verified + memsize > filesize)

-            memsize = filesize - verified;

-        if (sparse && !(verified == 0) && !(verified + memsize == filesize)) {

-            if (lseek(fd, memsize, SEEK_CUR) < 0)

-                goto error;

-            verified += memsize;

-        } else {

-            n = read_all(fd, buf, memsize);

-            if (n < 0)

-                goto error;

-            if (n == 0) {

-                errno = EINVAL; /* early EOF */

-                goto error;

-            }

-            if (memcmp(mem, buf, memsize) != 0) {

-                break; /* return < filesize means verification failure */

-            }

-            verified += n;

+    if (extentonly) {

+        struct fillfile_args fa;

+

+        fa.path = path;

+        fa.filesize = filesize;

+        fa.mem = mem;

+        fa.memsize = memsize;

+        fa.progress = progress;

+        fa.arg = arg;

+        fa.buf = alloc_buffer(memsize);

+

+        if (fa.buf == NULL) {

+            goto nomem;

         }

-        if (progress)

-            progress(arg, (double)verified/filesize);

-    } while (verified < filesize);

+

+        if (fextent_apply(fd, checkextent, &fa) == 0)

+            verified = filesize;

+

+        free(fa.buf);

+    } else {

+        if (!(buf = alloc_buffer(memsize)))

+            goto nomem;

+        do {

+            if (verified + memsize > filesize)

+                memsize = filesize - verified;

+            if (sparse && !(verified == 0) && !(verified + memsize == filesize)) {

+                if (lseek(fd, memsize, SEEK_CUR) < 0) {

+                    goto error;

+                }

+                verified += memsize;

+            } else {

+                n = read_all(fd, buf, memsize);

+                if (n < 0) {

+                    goto error;

+                }

+                if (n == 0) {

+                    errno = EINVAL; /* early EOF */

+                    goto error;

+                }

+                if (memcmp(mem, buf, memsize) != 0) {

+                    break;

+                }

+                verified += n;

+            }

+            if (progress)

+                progress(arg, (double)verified/filesize);

+        } while (verified < filesize);

+    }

+ 

     if (close(fd) < 0)

         goto error;

-    free(buf);

+    if (buf != NULL) {

+        free(buf);

+    }

     return verified;

 nomem:

     errno = ENOMEM;

@@ -293,6 +359,63 @@ disable_threads(void)

     no_threads = 1;

 }

+int fillextent(int fd, struct fiemap_extent *extent, void *pa)

+{

+    off_t n;

+    off_t written = 0LL;

+    struct fillfile_args args = *(struct fillfile_args *)(pa);

+    

+    do {

+        if (args.refill)

+            args.refill(args.mem, args.memsize);

+

+        if (written + args.memsize > extent->fe_length)

+            args.memsize = extent->fe_length - written;

+

+        n = write_all(fd, args.mem, args.memsize);

+

+        if (n < 0) {

+            fprintf(stderr, "%s: write %s: %s\n", prog, args.path, strerror(errno));

+            exit(1);

+        }

+        written += n;

+

+        if (args.progress)

+            args.progress(args.arg, (double)(extent->fe_logical + written)/args.filesize);

+    } while (written < extent->fe_length);

+

+    return 0;

+}

+

+int checkextent(int fd, struct fiemap_extent *extent, void *pa)

+{

+    off_t n;

+    off_t verified = 0LL;

+    struct fillfile_args args = *(struct fillfile_args *)(pa);

+

+    do {

+        if (verified + args.memsize > extent->fe_length)

+            args.memsize = extent->fe_length - verified;

+

+        n = read_all(fd, args.buf, args.memsize);

+        if (n < 0) {

+            return -1;

+        }

+        if (n == 0) {

+            errno = EINVAL;

+            return -1;

+        }

+        if (memcmp(args.mem, args.buf, args.memsize) != 0) {

+            break;

+        }

+        verified += n;

+        if (args.progress)

+            args.progress(args.arg, (double)(extent->fe_logical+verified)/args.filesize);

+    } while (verified < extent->fe_length);

+

+    return 0;

+}

+

 /*

  * vi:tabstop=4 shiftwidth=4 expandtab

  */

diff --git a/src/fillfile.h b/src/fillfile.h

index b9ef951..2fc917d 100644

--- a/src/fillfile.h

+++ b/src/fillfile.h

@@ -29,7 +29,7 @@ typedef void (*refill_t) (unsigned char *mem, int memsize);

 off_t fillfile(char *path, off_t filesize, unsigned char *mem, int memsize,

         progress_t progress, void *arg, refill_t refill, 

-        bool sparse, bool creat);

+        bool sparse, bool creat, bool extentonly);

 off_t checkfile(char *path, off_t filesize, unsigned char *mem, int memsize,

-        progress_t progress, void *arg, bool sparse);

+        progress_t progress, void *arg, bool sparse, bool extentonly);

 void  disable_threads(void);

diff --git a/src/genrand.c b/src/genrand.c

index 820c898..ecfd382 100644

--- a/src/genrand.c

+++ b/src/genrand.c

@@ -106,7 +106,7 @@ genrandraw(unsigned char *buf, int buflen)

                 buf[n] = result;

             }

 #endif

-            return;

+            return 0;

         }

     }

diff --git a/src/scrub.c b/src/scrub.c

index dec71f3..b0eb1f7 100644

--- a/src/scrub.c

+++ b/src/scrub.c

@@ -58,12 +58,12 @@

 #define BUFSIZE (4*1024*1024) /* default blocksize */

 static bool       scrub(char *path, off_t size, const sequence_t *seq,

-                      int bufsize, bool Sopt, bool sparse, bool enospc);

+                      int bufsize, bool Sopt, bool sparse, bool enospc, bool extentonly);

 static void       scrub_free(char *path, off_t size, const sequence_t *seq,

                       int bufsize, bool Sopt);

 static void       scrub_dirent(char *path, char *newpath);

 static void       scrub_file(char *path, off_t size, const sequence_t *seq,

-                      int bufsize, bool Sopt, bool sparse);

+                      int bufsize, bool Sopt, bool sparse, bool extentonly);

 #if __APPLE__

 static void       scrub_resfork(char *path, const sequence_t *seq,

                       int bufsize);

@@ -71,7 +71,7 @@ static void       scrub_resfork(char *path, const sequence_t *seq,

 static void       scrub_disk(char *path, off_t size, const sequence_t *seq,

                       int bufsize, bool Sopt, bool sparse);

-#define OPTIONS "p:D:Xb:s:fSrvTLRth"

+#define OPTIONS "p:D:Xb:s:fSrvTELRth"

 #if HAVE_GETOPT_LONG

 #define GETOPT(ac,av,opt,lopt) getopt_long(ac,av,opt,lopt,NULL)

 static struct option longopts[] = {

@@ -85,6 +85,7 @@ static struct option longopts[] = {

     {"remove",           no_argument,        0, 'r'},

     {"version",          no_argument,        0, 'v'},

     {"test-sparse",      no_argument,        0, 'T'},

+    {"extent-only",      no_argument,        0, 'E'},

     {"no-link",          no_argument,        0, 'L'},

     {"no-hwrand",        no_argument,        0, 'R'},

     {"no-threads",       no_argument,        0, 't'},

@@ -111,6 +112,7 @@ usage(void)

 "  -f, --force             scrub despite signature from previous scrub\n"

 "  -S, --no-signature      do not write scrub signature after scrub\n"

 "  -r, --remove            remove file after scrub\n"

+"  -E, --extent-only       scrub only file extents\n"

 "  -L, --no-link           do not scrub link target\n"

 "  -R, --no-hwrand         do not use a hardware random number generator\n"

 "  -t, --no-threads        do not compute random data in a parallel thread\n"

@@ -139,6 +141,7 @@ main(int argc, char *argv[])

     bool Lopt = false;

     bool Ropt = false;

     bool topt = false;

+    bool Eopt = false;

     extern int optind;

     extern char *optarg;

     int c;

@@ -207,6 +210,9 @@ main(int argc, char *argv[])

         case 'T':   /* --test-sparse */

             Topt = true;

             break;

+        case 'E':   /* --extent-only */

+            Eopt = true;

+            break;

         case 'L':   /* --no-link */

             Lopt = true;

             break;

@@ -315,7 +321,7 @@ main(int argc, char *argv[])

                         prog, Dopt, filename);

                 exit(1);

             }

-            scrub_file(filename, sopt, seq, bopt, Sopt, Topt);

+            scrub_file(filename, sopt, seq, bopt, Sopt, Topt, Eopt);

 #if __APPLE__

             scrub_resfork(filename, seq, bopt);

 #endif

@@ -346,14 +352,14 @@ done:

  */

 static bool

 scrub(char *path, off_t size, const sequence_t *seq, int bufsize, 

-      bool Sopt, bool sparse, bool enospc)

+      bool Sopt, bool sparse, bool enospc, bool extentonly)

 {

     unsigned char *buf;

     int i;

     prog_t p;

     char sizestr[80];

     bool isfull = false;

-    off_t written, checked;

+    off_t written = (off_t)-1, checked = (off_t)-1;

     if (!(buf = alloc_buffer(bufsize))) {

         fprintf(stderr, "%s: out of memory\n", prog);

@@ -381,7 +387,7 @@ scrub(char *path, off_t size, const sequence_t *seq, int bufsize,

                 }

                 written = fillfile(path, size, buf, bufsize, 

                                    (progress_t)progress_update, p, 

-                                   (refill_t)genrand, sparse, enospc);

+                                   (refill_t)genrand, sparse, enospc, extentonly);

                 if (written == (off_t)-1) {

                     fprintf(stderr, "%s: %s: %s\n", prog, path,

                              strerror(errno));

@@ -395,7 +401,7 @@ scrub(char *path, off_t size, const sequence_t *seq, int bufsize,

                 memset_pat(buf, seq->pat[i], bufsize);

                 written = fillfile(path, size, buf, bufsize, 

                                    (progress_t)progress_update, p, 

-                                   NULL, sparse, enospc);

+                                   NULL, sparse, enospc, extentonly);

                 if (written == (off_t)-1) {

                     fprintf(stderr, "%s: %s: %s\n", prog, path,

                              strerror(errno));

@@ -409,7 +415,7 @@ scrub(char *path, off_t size, const sequence_t *seq, int bufsize,

                 memset_pat(buf, seq->pat[i], bufsize);

                 written = fillfile(path, size, buf, bufsize, 

                                    (progress_t)progress_update, p, 

-                                   NULL, sparse, enospc);

+                                   NULL, sparse, enospc, extentonly);

                 if (written == (off_t)-1) {

                     fprintf(stderr, "%s: %s: %s\n", prog, path,

                              strerror(errno));

@@ -419,7 +425,7 @@ scrub(char *path, off_t size, const sequence_t *seq, int bufsize,

                 printf("%s: %-8s", prog, "verify");

                 progress_create(&p, 50);

                 checked = checkfile(path, written, buf, bufsize, 

-                                    (progress_t)progress_update, p, sparse);

+                                    (progress_t)progress_update, p, sparse, extentonly);

                 if (checked == (off_t)-1) {

                     fprintf(stderr, "%s: %s: %s\n", prog, path,

                              strerror(errno));

@@ -513,7 +519,7 @@ scrub_free(char *dirpath, off_t size, const sequence_t *seq,

     size = blkalign(size, sb.st_blksize, DOWN);

     do {

         snprintf(path, sizeof(path), "%s/scrub.%.3d", dirpath, fileno++);

-        isfull = scrub(path, size, seq, bufsize, Sopt, false, true);

+        isfull = scrub(path, size, seq, bufsize, Sopt, false, true, false);

     } while (!isfull);

     while (--fileno >= 0) {

         snprintf(path, sizeof(path), "%s/scrub.%.3d", dirpath, fileno);

@@ -565,7 +571,7 @@ scrub_dirent(char *path, char *newpath)

  */

 static void 

 scrub_file(char *path, off_t size, const sequence_t *seq, 

-           int bufsize, bool Sopt, bool sparse)

+           int bufsize, bool Sopt, bool sparse, bool extentonly)

 {

     struct stat sb;

     filetype_t ftype = filetype(path);

@@ -590,7 +596,7 @@ scrub_file(char *path, off_t size, const sequence_t *seq,

                     prog, path, (int)(size - sb.st_size)); 

         }

     }

-    scrub(path, size, seq, bufsize, Sopt, sparse, false);

+    scrub(path, size, seq, bufsize, Sopt, sparse, false, extentonly);

 }

 /* Scrub apple resource fork component of file.

@@ -618,7 +624,7 @@ scrub_resfork(char *path, const sequence_t *seq, int bufsize)

         printf("%s: padding %s with %d bytes to fill last fs block\n", 

                         prog, rpath, (int)(rsize - rsb.st_size)); 

     }

-    scrub(rpath, rsize, seq, bufsize, false, false, false);

+    scrub(rpath, rsize, seq, bufsize, false, false, false, false);

 }

 #endif

@@ -639,7 +645,7 @@ scrub_disk(char *path, off_t size, const sequence_t *seq, int bufsize,

         }

         printf("%s: please verify that device size below is correct!\n", prog);

     }

-    scrub(path, size, seq, bufsize, Sopt, sparse, false);

+    scrub(path, size, seq, bufsize, Sopt, sparse, false, false);