--- sed-4.2.2/sed/sed.h.copy 2012-07-25 12:33:09.000000000 +0200
+++ sed-4.2.2/sed/sed.h 2013-01-04 15:26:07.702167448 +0100
@@ -230,6 +230,10 @@ extern countT lcmd_out_line_len;
/* 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 *read_mode;
extern char *write_mode;
--- sed-4.2.2/sed/utils.c.copy 2012-03-16 10:13:31.000000000 +0100
+++ sed-4.2.2/sed/utils.c 2013-01-04 15:23:54.278515120 +0100
@@ -27,6 +27,7 @@
#include <sys/stat.h>
#include <unistd.h>
#include <limits.h>
+#include <fcntl.h>
#include "utils.h"
#include "pathmax.h"
@@ -410,33 +411,109 @@ follow_symlink(const char *fname)
return fname;
#endif /* ENABLE_FOLLOW_SYMLINKS */
}
+
-/* Panic on failing rename */
+/* Panic on failing unlink */
void
-ck_rename (from, to, unlink_if_fail)
- const char *from, *to;
- const char *unlink_if_fail;
+ck_unlink (name)
+ 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);
+}
--- sed-4.2.2/sed/execute.c.copy 2012-03-16 10:13:31.000000000 +0100
+++ sed-4.2.2/sed/execute.c 2013-01-04 15:23:54.232515231 +0100
@@ -703,11 +703,13 @@ closedown(input)
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);
free (input->out_file_name);
}
else
--- sed-4.2.2/sed/utils.h.copy 2012-03-16 10:13:31.000000000 +0100
+++ sed-4.2.2/sed/utils.h 2013-01-04 15:25:30.821263467 +0100
@@ -33,6 +33,8 @@ size_t ck_getdelim (char **text, size_t
FILE * ck_mkstemp (char **p_filename, const char *tmpdir, const char *base,
const char *mode);
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);
--- sed-4.2.2/sed/sed.c.copy 2012-03-16 10:13:31.000000000 +0100
+++ sed-4.2.2/sed/sed.c 2013-01-04 15:28:10.772846595 +0100
@@ -56,6 +56,10 @@ bool follow_symlinks = false;
/* 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 *read_mode = "r";
char *write_mode = "w";
@@ -117,6 +121,8 @@ Usage: %s [OPTION]... {script-only-if-no
#endif
fprintf(out, _(" -i[SUFFIX], --in-place[=SUFFIX]\n\
edit files in place (makes backup if SUFFIX supplied)\n"));
+ fprintf(out, _(" -c, --copy\n\
+ use copy instead of rename when shuffling files in -i mode\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"));
@@ -158,9 +164,9 @@ main(argc, argv)
char **argv;
{
#ifdef REG_PERL
-#define SHORTOPTS "bsnrzRuEe:f:l:i::V:"
+#define SHORTOPTS "bcsnrzRuEe:f:l:i::V:"
#else
-#define SHORTOPTS "bsnrzuEe:f:l:i::V:"
+#define SHORTOPTS "bcsnrzuEe:f:l:i::V:"
#endif
static struct option longopts[] = {
@@ -172,6 +178,7 @@ main(argc, argv)
{"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'},
@@ -244,6 +251,10 @@ main(argc, argv)
case 'F':
follow_symlinks = true;
+ break;
+
+ case 'c':
+ copy_instead_of_rename = true;
break;
case 'i':
@@ -314,6 +325,12 @@ main(argc, argv)
}
}
+ 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)