diff -urN sed-4.3/sed/execute.c sed-4.3.new00/sed/execute.c

--- sed-4.3/sed/execute.c	2012-03-16 10:13:31.000000000 +0100

+++ sed-4.3.new00/sed/execute.c	2014-02-10 14:40:25.603629422 +0100

@@ -703,11 +703,13 @@

       if (strcmp(in_place_extension, "*") != 0)

         {

           char *backup_file_name = get_backup_file_name(target_name);

-          ck_rename (target_name, backup_file_name, input->out_file_name);

+         (copy_instead_of_rename?ck_fccopy:ck_rename)

+            (target_name, backup_file_name, input->out_file_name);

           free (backup_file_name);

         }

-      ck_rename (input->out_file_name, target_name, input->out_file_name);

+      (copy_instead_of_rename?ck_fcmove:ck_rename)

+        (input->out_file_name, target_name, input->out_file_name);

       cancel_cleanup ();

       free (input->out_file_name);

     }

diff -urN sed-4.3/sed/sed.c sed-4.3.new00/sed/sed.c

--- sed-4.3/sed/sed.c	2012-03-16 10:13:31.000000000 +0100

+++ sed-4.3.new00/sed/sed.c	2014-02-10 17:37:19.381273509 +0100

@@ -56,6 +56,10 @@

 /* How do we edit files in-place? (we don't if NULL) */

 char *in_place_extension = NULL;

+ /* Do we use copy or rename when in in-place edit mode? (boolean

+   value, non-zero for copy, zero for rename).*/

+ int copy_instead_of_rename = 0;

+

 /* The mode to use to read/write files, either "r"/"w" or "rb"/"wb".  */

 char const *read_mode = "r";

 char const *write_mode = "w";

@@ -117,11 +121,16 @@

   fprintf(out, _("  -i[SUFFIX], --in-place[=SUFFIX]\n\

                  edit files in place (makes backup if SUFFIX supplied)\n"));

-#if defined WIN32 || defined _WIN32 || defined __CYGWIN__ \

-  || defined MSDOS || defined __EMX__

-  fprintf(out, _("  -b, --binary\n\

-                 open files in binary mode (CR+LFs are not" \

-                 " processed specially)\n"));

+  fprintf(out, _("  -c, --copy\n\

+                 use copy instead of rename when shuffling files in -i mode\n"));

+  fprintf(out, _("  -b, --binary\n"

+#if ! ( defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(MSDOS) || defined(__EMX__) )

+"                 does nothing; for compatibility with WIN32/CYGWIN/MSDOS/EMX (\n"

+#endif

+"                 open files in binary mode (CR+LFs are not treated specially)"

+#if ! ( defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(MSDOS) || defined(__EMX__) )

+                 ")"

 #endif

+                 "\n"));

   fprintf(out, _("  -l N, --line-length=N\n\

                  specify the desired line-wrap length for the `l' command\n"));

   fprintf(out, _("  --posix\n\

@@ -138,8 +149,10 @@

                  the output buffers more often\n"));

   fprintf(out, _("  -z, --null-data\n\

                  separate lines by NUL characters\n"));

-  fprintf(out, _("      --help     display this help and exit\n"));

-  fprintf(out, _("      --version  output version information and exit\n"));

+  fprintf(out, _("  --help\n\

+                 display this help and exit\n"));

+  fprintf(out, _("  --version\n\

+                 output version information and exit\n"));

   fprintf(out, _("\n\

 If no -e, --expression, -f, or --file option is given, then the first\n\

 non-option argument is taken as the sed script to interpret.  All\n\

@@ -158,9 +171,9 @@

 main (int argc, char **argv)

 {

 #ifdef REG_PERL

-#define SHORTOPTS "bsnrzRuEe:f:l:i::V:"

+#define SHORTOPTS "bcsnrzRuEe:f:l:i::"

 #else

-#define SHORTOPTS "bsnrzuEe:f:l:i::V:"

+#define SHORTOPTS "bcsnrzuEe:f:l:i::"

 #endif

   enum { SANDBOX_OPTION = CHAR_MAX+1 };

@@ -172,6 +185,7 @@

     {"expression", 1, NULL, 'e'},

     {"file", 1, NULL, 'f'},

     {"in-place", 2, NULL, 'i'},

+    {"copy", 0, NULL, 'c'},

     {"line-length", 1, NULL, 'l'},

     {"null-data", 0, NULL, 'z'},

     {"zero-terminated", 0, NULL, 'z'},

@@ -246,6 +260,10 @@

           follow_symlinks = true;

           break;

+        case 'c':

+          copy_instead_of_rename = true;

+          break;

+

         case 'i':

           separate_files = true;

           if (optarg == NULL)

@@ -272,9 +290,11 @@

           posixicity = POSIXLY_BASIC;

           break;

-        case 'b':

+        case 'b':

+#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(MSDOS) || defined(__EMX__)

           read_mode = "rb";

           write_mode = "wb";

+#endif

           break;

         case 'E':

@@ -314,6 +334,12 @@

         }

     }

+  if (copy_instead_of_rename && in_place_extension == NULL)

+    {

+      fprintf (stderr, _("Error: -c used without -i.\n"));

+      usage(4);

+    }

+

   if (!the_program)

     {

       if (optind < argc)

diff -urN sed-4.3/sed/sed.h sed-4.3.new00/sed/sed.h

--- sed-4.3/sed/sed.h	2012-07-25 12:33:09.000000000 +0200

+++ sed-4.3.new00/sed/sed.h	2014-02-10 14:40:25.602629419 +0100

@@ -230,6 +230,10 @@

 /* How do we edit files in-place? (we don't if NULL) */

 extern char *in_place_extension;

+/* Do we use copy or rename when in in-place edit mode? (boolean

+   value, non-zero for copy, zero for rename).*/

+extern int copy_instead_of_rename;

+

 /* The mode to use to read and write files, either "rt"/"w" or "rb"/"wb".  */

 extern char const *read_mode;

 extern char const *write_mode;

diff -urN sed-4.3/sed/utils.c sed-4.3.new00/sed/utils.c

--- sed-4.3/sed/utils.c	2012-03-16 10:13:31.000000000 +0100

+++ sed-4.3.new00/sed/utils.c	2014-02-10 14:40:25.603629422 +0100

@@ -27,6 +27,7 @@

 #include <sys/stat.h>

 #include <unistd.h>

 #include <limits.h>

+#include <fcntl.h>

 #include "unlocked-io.h"

 #include "utils.h"

@@ -363,31 +364,106 @@

 #endif /* ENABLE_FOLLOW_SYMLINKS */

 }

-/* Panic on failing rename */

+/* Panic on failing unlink */

 void

-ck_rename (const char *from, const char *to, const char *unlink_if_fail)

+ck_unlink (const char *name)

 {

-  int rd = rename (from, to);

-  if (rd != -1)

-    return;

+  if (unlink (name) == -1)

+    panic (_("cannot remove %s: %s"), name, strerror (errno));

+}

-  if (unlink_if_fail)

+/* Attempt to unlink denoted file if operation rd failed. */

+static int

+_unlink_if_fail (rd, unlink_if_fail)

+  int rd;

+  const char *unlink_if_fail;

+{

+  if (rd == -1 && unlink_if_fail)

     {

       int save_errno = errno;

+      ck_unlink (unlink_if_fail);

+      errno = save_errno;

+    }

+

+  return rd != -1;

+}

+

+/* Copy contents between files. */

+static int

+_copy (from, to)

+  const char *from, *to;

+{

+  static char buf[4096];

+

+  FILE *infile, *outfile;

+  int c, retval = 0;

       errno = 0;

-      unlink (unlink_if_fail);

-      /* Failure to remove the temporary file is more severe,

-         so trigger it first.  */

-      if (errno != 0)

-        panic (_("cannot remove %s: %s"), unlink_if_fail, strerror (errno));

+  infile = fopen (from, "r");

+  if (infile == NULL)

+    return -1;

-      errno = save_errno;

+  outfile = fopen (to, "w");

+  if (outfile == NULL)

+    {

+      fclose (infile);

+      return -1;

+    }

+

+  while (1)

+    {

+      size_t bytes_in = fread (buf, 1, sizeof (buf), infile);

+      size_t bytes_out;

+      if (bytes_in == 0)

+       {

+         if (ferror (infile))

+           retval = -1;

+         break;

+       }

+

+      bytes_out = fwrite (buf, 1, bytes_in, outfile);

+      if (bytes_out != bytes_in)

+       {

+         retval = -1;

+         break;

+       }

     }

+  fclose (outfile);

+  fclose (infile);

+

+  return retval;

+}

+

+/* Panic on failing rename */

+void

+ck_rename (from, to, unlink_if_fail)

+  const char *from, *to;

+  const char *unlink_if_fail;

+{

+  if (!_unlink_if_fail (rename (from, to), unlink_if_fail))

   panic (_("cannot rename %s: %s"), from, strerror (errno));

 }

+/* Attempt to copy file contents between the files. */

+void

+ck_fccopy (from, to, unlink_if_fail)

+  const char *from, *to;

+  const char *unlink_if_fail;

+{

+  if (!_unlink_if_fail (_copy (from, to), unlink_if_fail))

+    panic (_("cannot copy %s to %s: %s"), from, to, strerror (errno));

+}

+

+/* Copy contents between files, and then unlink the source. */

+void

+ck_fcmove (from, to, unlink_if_fail)

+  const char *from, *to;

+  const char *unlink_if_fail;

+{

+  ck_fccopy (from, to, unlink_if_fail);

+  ck_unlink (from);

+}

diff -urN sed-4.3/sed/utils.h sed-4.3.new00/sed/utils.h

--- sed-4.3/sed/utils.h	2012-03-16 10:13:31.000000000 +0100

+++ sed-4.3.new00/sed/utils.h	2014-02-10 14:40:25.603629422 +0100

@@ -33,6 +33,8 @@

 FILE * ck_mkstemp (char **p_filename, const char *tmpdir, const char *base,

                    const char *mode) _GL_ARG_NONNULL ((1, 2, 3, 4));

 void ck_rename (const char *from, const char *to, const char *unlink_if_fail);

+void ck_fccopy (const char *from, const char *to, const char *unlink_if_fail);

+void ck_fcmove (const char *from, const char *to, const char *unlink_if_fail);

 void *ck_malloc (size_t size);

 void *xmalloc (size_t size);