*
* Copyright (C) 1996-2000 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
- * Copyright (C) 2003-2008 Wayne Davison
+ * Copyright (C) 2003-2009 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
extern char *basis_dir[MAX_BASIS_DIRS+1];
extern char sender_file_sum[MAX_DIGEST_LEN];
extern struct file_list *cur_flist, *first_flist, *dir_flist;
-extern struct filter_list_struct daemon_filter_list;
+extern filter_rule_list daemon_filter_list;
static struct bitbag *delayed_bits = NULL;
static int phase = 0, redoing = 0;
+static flist_ndx_list batch_redo_list;
/* We're either updating the basis file or an identical copy: */
static int updating_basis_or_equiv;
-/*
- * get_tmpname() - create a tmp filename for a given filename
+#define TMPNAME_SUFFIX ".XXXXXX"
+#define TMPNAME_SUFFIX_LEN ((int)sizeof TMPNAME_SUFFIX - 1)
+#define MAX_UNIQUE_NUMBER 999999
+#define MAX_UNIQUE_LOOP 100
+
+/* get_tmpname() - create a tmp filename for a given filename
*
- * If a tmpdir is defined, use that as the directory to
- * put it in. Otherwise, the tmp filename is in the same
- * directory as the given name. Note that there may be no
- * directory at all in the given name!
+ * If a tmpdir is defined, use that as the directory to put it in. Otherwise,
+ * the tmp filename is in the same directory as the given name. Note that
+ * there may be no directory at all in the given name!
*
- * The tmp filename is basically the given filename with a
- * dot prepended, and .XXXXXX appended (for mkstemp() to
- * put its unique gunk in). Take care to not exceed
- * either the MAXPATHLEN or NAME_MAX, esp. the last, as
- * the basename basically becomes 8 chars longer. In that
- * case, the original name is shortened sufficiently to
- * make it all fit.
+ * The tmp filename is basically the given filename with a dot prepended, and
+ * .XXXXXX appended (for mkstemp() to put its unique gunk in). We take care
+ * to not exceed either the MAXPATHLEN or NAME_MAX, especially the last, as
+ * the basename basically becomes 8 characters longer. In such a case, the
+ * original name is shortened sufficiently to make it all fit.
*
- * Of course, there's no real reason for the tmp name to
- * look like the original, except to satisfy us humans.
- * As long as it's unique, rsync will work.
- */
-
-int get_tmpname(char *fnametmp, const char *fname)
+ * If the make_unique arg is True, the XXXXXX string is replaced with a unique
+ * string that doesn't exist at the time of the check. This is intended to be
+ * used for creating hard links, symlinks, devices, and special files, since
+ * normal files should be handled by mkstemp() for safety.
+ *
+ * Of course, the only reason the file is based on the original name is to
+ * make it easier to figure out what purpose a temp file is serving when a
+ * transfer is in progress. */
+int get_tmpname(char *fnametmp, const char *fname, BOOL make_unique)
{
int maxname, added, length = 0;
const char *f;
+ char *suf;
if (tmpdir) {
/* Note: this can't overflow, so the return value is safe */
fnametmp[length++] = '.';
/* The maxname value is bufsize, and includes space for the '\0'.
- * (Note that NAME_MAX get -8 for the leading '.' above.) */
- maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
+ * NAME_MAX needs an extra -1 for the name's leading dot. */
+ maxname = MIN(MAXPATHLEN - length - TMPNAME_SUFFIX_LEN,
+ NAME_MAX - 1 - TMPNAME_SUFFIX_LEN);
if (maxname < 1) {
rprintf(FERROR_XFER, "temporary filename too long: %s\n", fname);
added = strlcpy(fnametmp + length, f, maxname);
if (added >= maxname)
added = maxname - 1;
- memcpy(fnametmp + length + added, ".XXXXXX", 8);
+ suf = fnametmp + length + added;
+
+ if (make_unique) {
+ static unsigned counter_limit;
+ unsigned counter;
+
+ if (!counter_limit) {
+ counter_limit = (unsigned)getpid() + MAX_UNIQUE_LOOP;
+ if (counter_limit > MAX_UNIQUE_NUMBER || counter_limit < MAX_UNIQUE_LOOP)
+ counter_limit = MAX_UNIQUE_LOOP;
+ }
+ counter = counter_limit - MAX_UNIQUE_LOOP;
+
+ /* This doesn't have to be very good because we don't need
+ * to worry about someone trying to guess the values: all
+ * a conflict will do is cause a device, special file, hard
+ * link, or symlink to fail to be created. Also: avoid
+ * using mktemp() due to gcc's annoying warning. */
+ while (1) {
+ snprintf(suf, TMPNAME_SUFFIX_LEN+1, ".%d", counter);
+ if (access(fnametmp, 0) < 0)
+ break;
+ if (++counter >= counter_limit)
+ return 0;
+ }
+ } else
+ memcpy(suf, TMPNAME_SUFFIX, TMPNAME_SUFFIX_LEN+1);
return 1;
}
{
int fd;
- if (!get_tmpname(fnametmp, fname))
+ if (!get_tmpname(fnametmp, fname, False))
return -1;
/* We initially set the perms without the setuid/setgid bits or group
* information should have been previously transferred, but that may
* not be the case with -R */
if (fd == -1 && relative_paths && errno == ENOENT
- && create_directory_path(fnametmp) == 0) {
+ && make_path(fnametmp, MKP_SKIP_SLASH | MKP_DROP_NAME) == 0) {
/* Get back to name with XXXXXX in it. */
- get_tmpname(fnametmp, fname);
+ get_tmpname(fnametmp, fname, False);
fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
}
#endif
goto report_write_error;
#ifdef HAVE_FTRUNCATE
- if (inplace && fd != -1)
- ftruncate(fd, offset);
+ if (inplace && fd != -1
+ && ftruncate(fd, offset) < 0) {
+ rsyserr(FERROR_XFER, errno, "ftruncate failed on %s",
+ full_fname(fname));
+ }
#endif
if (INFO_GTE(PROGRESS, 1))
struct file_struct *file = cur_flist->files[ndx];
fname = local_name ? local_name : f_name(file, NULL);
if ((partialptr = partial_dir_fname(fname)) != NULL) {
- if (make_backups > 0 && !make_backup(fname))
+ if (make_backups > 0 && !make_backup(fname, False))
continue;
if (DEBUG_GTE(RECV, 1)) {
rprintf(FINFO, "renaming %s to %s\n",
}
}
-static int get_next_gen_ndx(int fd, int next_gen_ndx, int desired_ndx)
+static void no_batched_update(int ndx, BOOL is_redo)
{
- while (next_gen_ndx < desired_ndx) {
- if (next_gen_ndx >= 0) {
- struct file_struct *file = cur_flist->files[next_gen_ndx];
- rprintf(FERROR_XFER,
- "(No batched update for%s \"%s\")\n",
- file->flags & FLAG_FILE_SENT ? " resend of" : "",
- f_name(file, NULL));
- }
- next_gen_ndx = read_int(fd);
- if (next_gen_ndx == -1) {
- if (inc_recurse)
- next_gen_ndx = first_flist->prev->used + first_flist->prev->ndx_start;
- else
- next_gen_ndx = cur_flist->used;
+ struct file_list *flist = flist_for_ndx(ndx, "no_batched_update");
+ struct file_struct *file = flist->files[ndx - flist->ndx_start];
+
+ rprintf(FERROR_XFER, "(No batched update for%s \"%s\")\n",
+ is_redo ? " resend of" : "", f_name(file, NULL));
+
+ if (inc_recurse && !dry_run)
+ send_msg_int(MSG_NO_SEND, ndx);
+}
+
+static int we_want_redo(int desired_ndx)
+{
+ static int redo_ndx = -1;
+
+ while (redo_ndx < desired_ndx) {
+ if (redo_ndx >= 0)
+ no_batched_update(redo_ndx, True);
+ if ((redo_ndx = flist_ndx_pop(&batch_redo_list)) < 0)
+ return 0;
+ }
+
+ if (redo_ndx == desired_ndx) {
+ redo_ndx = -1;
+ return 1;
+ }
+
+ return 0;
+}
+
+static int gen_wants_ndx(int desired_ndx, int flist_num)
+{
+ static int next_ndx = -1;
+ static int done_cnt = 0;
+ static BOOL got_eof = False;
+
+ if (got_eof)
+ return 0;
+
+ while (next_ndx < desired_ndx) {
+ if (inc_recurse && flist_num <= done_cnt)
+ return 0;
+ if (next_ndx >= 0)
+ no_batched_update(next_ndx, False);
+ if ((next_ndx = read_int(batch_gen_fd)) < 0) {
+ if (inc_recurse) {
+ done_cnt++;
+ continue;
+ }
+ got_eof = True;
+ return 0;
}
}
- return next_gen_ndx;
+
+ if (next_ndx == desired_ndx) {
+ next_ndx = -1;
+ return 1;
+ }
+
+ return 0;
}
/**
* Receiver process runs on the same host as the generator process. */
int recv_files(int f_in, char *local_name)
{
- int next_gen_ndx = -1;
int fd1,fd2;
STRUCT_STAT st;
int iflags, xlen;
end_progress(0);
}
if (inc_recurse && first_flist) {
+ if (read_batch) {
+ ndx = first_flist->used + first_flist->ndx_start;
+ gen_wants_ndx(ndx, first_flist->flist_num);
+ }
flist_free(first_flist);
if (first_flist)
continue;
- }
- if (read_batch && cur_flist) {
- int high = inc_recurse
- ? first_flist->prev->used + first_flist->prev->ndx_start
- : cur_flist->used;
- get_next_gen_ndx(batch_gen_fd, next_gen_ndx, high);
- next_gen_ndx = -1;
+ } else if (read_batch && first_flist) {
+ ndx = first_flist->used;
+ gen_wants_ndx(ndx, first_flist->flist_num);
}
if (++phase > max_phase)
break;
rprintf(FINFO, "recv_files(%s)\n", fname);
#ifdef SUPPORT_XATTRS
- if (iflags & ITEM_REPORT_XATTR && !dry_run)
+ if (iflags & ITEM_REPORT_XATTR && do_xfers)
recv_xattr_request(file, f_in);
#endif
if (!(iflags & ITEM_TRANSFER)) {
maybe_log_item(file, iflags, itemizing, xname);
#ifdef SUPPORT_XATTRS
- if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
+ if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && do_xfers)
set_file_attrs(fname, file, NULL, fname, 0);
#endif
+ if (iflags & ITEM_IS_NEW) {
+ stats.created_files++;
+ if (S_ISREG(file->mode)) {
+ /* Nothing further to count. */
+ } else if (S_ISDIR(file->mode))
+ stats.created_dirs++;
+#ifdef SUPPORT_LINKS
+ else if (S_ISLNK(file->mode))
+ stats.created_symlinks++;
+#endif
+ else if (IS_DEVICE(file->mode))
+ stats.created_devices++;
+ else
+ stats.created_specials++;
+ }
continue;
}
if (phase == 2) {
csum_length = SHORT_SUM_LENGTH;
redoing = 0;
}
+ if (iflags & ITEM_IS_NEW)
+ stats.created_files++;
}
if (!am_server && INFO_GTE(PROGRESS, 1))
set_current_file_index(file, ndx);
- stats.num_transferred_files++;
+ stats.xferred_files++;
stats.total_transferred_size += F_LENGTH(file);
cleanup_got_literal = 0;
exit_cleanup(RERR_PROTOCOL);
}
+ if (read_batch) {
+ int wanted = redoing
+ ? we_want_redo(ndx)
+ : gen_wants_ndx(ndx, cur_flist->flist_num);
+ if (!wanted) {
+ rprintf(FINFO,
+ "(Skipping batched update for%s \"%s\")\n",
+ redoing ? " resend of" : "",
+ fname);
+ discard_receive_data(f_in, F_LENGTH(file));
+ file->flags |= FLAG_FILE_SENT;
+ continue;
+ }
+ }
+
if (!do_xfers) { /* log the transfer */
log_item(FCLIENT, file, &stats, iflags, NULL);
if (read_batch)
continue;
}
- if (read_batch) {
- next_gen_ndx = get_next_gen_ndx(batch_gen_fd, next_gen_ndx, ndx);
- if (ndx < next_gen_ndx) {
- rprintf(FINFO,
- "(Skipping batched update for \"%s\")\n",
- fname);
- discard_receive_data(f_in, F_LENGTH(file));
- if (inc_recurse)
- send_msg_int(MSG_NO_SEND, ndx);
- continue;
- }
- next_gen_ndx = -1;
- }
-
partialptr = partial_dir ? partial_dir_fname(fname) : fname;
if (protocol_version >= 29) {
cleanup_disable();
+ if (read_batch)
+ file->flags |= FLAG_FILE_SENT;
+
switch (recv_ok) {
case 2:
break;
keptstr, redostr);
}
if (!redoing) {
+ if (read_batch)
+ flist_ndx_push(&batch_redo_list, ndx);
send_msg_int(MSG_REDO, ndx);
file->flags |= FLAG_FILE_SENT;
} else if (inc_recurse)