-/* -*- c-file-style: "linux" -*-
-
- Copyright (C) 1996-2000 by Andrew Tridgell
- Copyright (C) Paul Mackerras 1996
-
- 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+/*
+ * Routines only used by the receiving process.
+ *
+ * Copyright (C) 1996-2000 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2003, 2004, 2005, 2006 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ */
#include "rsync.h"
extern int verbose;
-extern int dry_run;
-extern int am_daemon;
+extern int do_xfers;
extern int am_server;
extern int do_progress;
extern int log_before_transfer;
extern int log_format_has_i;
-extern int daemon_log_format_has_i;
+extern int logfile_format_has_i;
extern int csum_length;
extern int read_batch;
+extern int write_batch;
extern int batch_gen_fd;
extern int protocol_version;
extern int relative_paths;
-extern int keep_dirlinks;
extern int preserve_hard_links;
extern int preserve_perms;
-extern int io_error;
extern int basis_dir_cnt;
extern int make_backups;
extern int cleanup_got_literal;
extern int remove_sent_files;
-extern int module_id;
-extern int ignore_errors;
-extern int orig_umask;
+extern int append_mode;
+extern int sparse_files;
extern int keep_partial;
extern int checksum_seed;
extern int inplace;
extern char *tmpdir;
extern char *partial_dir;
extern char *basis_dir[];
-
+extern struct file_list *the_file_list;
extern struct filter_list_struct server_filter_list;
-#define SLOT_SIZE (16*1024) /* Desired size in bytes */
-#define PER_SLOT_BITS (SLOT_SIZE * 8) /* Number of bits per slot */
-#define PER_SLOT_INTS (SLOT_SIZE / 4) /* Number of int32s per slot */
-
-static uint32 **delayed_bits = NULL;
-static int delayed_slot_cnt = 0;
-
-static void init_delayed_bits(int max_ndx)
-{
- delayed_slot_cnt = (max_ndx + PER_SLOT_BITS - 1) / PER_SLOT_BITS;
-
- if (!(delayed_bits = (uint32**)calloc(delayed_slot_cnt, sizeof (uint32*))))
- out_of_memory("set_delayed_bit");
-}
-
-static void set_delayed_bit(int ndx)
-{
- int slot = ndx / PER_SLOT_BITS;
- ndx %= PER_SLOT_BITS;
-
- if (!delayed_bits[slot]) {
- if (!(delayed_bits[slot] = (uint32*)calloc(PER_SLOT_INTS, 4)))
- out_of_memory("set_delayed_bit");
- }
-
- delayed_bits[slot][ndx/32] |= 1u << (ndx % 32);
-}
-
-/* Call this with -1 to start checking from 0. Returns -1 at the end. */
-static int next_delayed_bit(int after)
-{
- uint32 bits, mask;
- int i, ndx = after + 1;
- int slot = ndx / PER_SLOT_BITS;
- ndx %= PER_SLOT_BITS;
-
- mask = (1u << (ndx % 32)) - 1;
- for (i = ndx / 32; slot < delayed_slot_cnt; slot++, i = mask = 0) {
- if (!delayed_bits[slot])
- continue;
- for ( ; i < PER_SLOT_INTS; i++, mask = 0) {
- if (!(bits = delayed_bits[slot][i] & ~mask))
- continue;
- /* The xor magic figures out the lowest enabled bit in
- * bits, and the switch quickly computes log2(bit). */
- switch (bits ^ (bits & (bits-1))) {
-#define LOG2(n) case 1u << n: return slot*PER_SLOT_BITS + i*32 + n
- LOG2(0); LOG2(1); LOG2(2); LOG2(3);
- LOG2(4); LOG2(5); LOG2(6); LOG2(7);
- LOG2(8); LOG2(9); LOG2(10); LOG2(11);
- LOG2(12); LOG2(13); LOG2(14); LOG2(15);
- LOG2(16); LOG2(17); LOG2(18); LOG2(19);
- LOG2(20); LOG2(21); LOG2(22); LOG2(23);
- LOG2(24); LOG2(25); LOG2(26); LOG2(27);
- LOG2(28); LOG2(29); LOG2(30); LOG2(31);
- }
- return -1; /* impossible... */
- }
- }
-
- return -1;
-}
+static struct bitbag *delayed_bits = NULL;
+static int phase = 0;
/*
maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
if (maxname < 1) {
- rprintf(FERROR, "temporary filename too long: %s\n",
- safe_fname(fname));
+ rprintf(FERROR, "temporary filename too long: %s\n", fname);
fnametmp[0] = '\0';
return 0;
}
mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
if (verbose > 2) {
rprintf(FINFO, "recv mapped %s of size %.0f\n",
- safe_fname(fname_r), (double)size_r);
+ fname_r, (double)size_r);
}
} else
mapbuf = NULL;
sum_init(checksum_seed);
+ if (append_mode) {
+ OFF_T j;
+ sum.flength = (OFF_T)sum.count * sum.blength;
+ if (sum.remainder)
+ sum.flength -= sum.blength - sum.remainder;
+ for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
+ if (do_progress)
+ show_progress(offset, total_size);
+ sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
+ CHUNK_SIZE);
+ offset = j;
+ }
+ if (offset < sum.flength) {
+ int32 len = sum.flength - offset;
+ if (do_progress)
+ show_progress(offset, total_size);
+ sum_update(map_ptr(mapbuf, offset, len), len);
+ offset = sum.flength;
+ }
+ if (fd != -1 && do_lseek(fd, offset, SEEK_SET) != offset) {
+ rsyserr(FERROR, errno, "lseek failed on %s",
+ full_fname(fname));
+ exit_cleanup(RERR_FILEIO);
+ }
+ }
+
while ((i = recv_token(f_in, &data)) != 0) {
if (do_progress)
show_progress(offset, total_size);
continue;
}
}
- if (fd != -1 && write_file(fd, map, len) != (int)len)
+ if (fd != -1 && map && write_file(fd, map, len) != (int)len)
goto report_write_error;
offset += len;
}
}
-static void read_gen_name(int fd, char *dirname, char *buf)
+static void discard_receive_data(int f_in, OFF_T length)
{
- int dlen;
- int len = read_byte(fd);
-
- if (len & 0x80) {
-#if MAXPATHLEN > 32767
- uchar lenbuf[2];
- read_buf(fd, (char *)lenbuf, 2);
- len = (len & ~0x80) * 0x10000 + lenbuf[0] * 0x100 + lenbuf[1];
-#else
- len = (len & ~0x80) * 0x100 + read_byte(fd);
-#endif
- }
-
- if (dirname) {
- dlen = strlcpy(buf, dirname, MAXPATHLEN);
- buf[dlen++] = '/';
- } else
- dlen = 0;
+ receive_data(f_in, NULL, -1, 0, NULL, -1, length);
+}
- if (dlen + len >= MAXPATHLEN) {
- rprintf(FERROR, "bogus data on generator name pipe\n");
- exit_cleanup(RERR_PROTOCOL);
+static void handle_delayed_updates(struct file_list *flist, char *local_name)
+{
+ char *fname, *partialptr, numbuf[4];
+ int i;
+
+ for (i = -1; (i = bitbag_next_bit(delayed_bits, i)) >= 0; ) {
+ struct file_struct *file = flist->files[i];
+ fname = local_name ? local_name : f_name(file, NULL);
+ if ((partialptr = partial_dir_fname(fname)) != NULL) {
+ if (make_backups && !make_backup(fname))
+ continue;
+ if (verbose > 2) {
+ rprintf(FINFO, "renaming %s to %s\n",
+ partialptr, fname);
+ }
+ /* We don't use robust_rename() here because the
+ * partial-dir must be on the same drive. */
+ if (do_rename(partialptr, fname) < 0) {
+ rsyserr(FERROR, errno,
+ "rename failed for %s (from %s)",
+ full_fname(fname), partialptr);
+ } else {
+ if (remove_sent_files
+ || (preserve_hard_links
+ && file->link_u.links)) {
+ SIVAL(numbuf, 0, i);
+ send_msg(MSG_SUCCESS,numbuf,4);
+ }
+ handle_partial_dir(partialptr, PDIR_DELETE);
+ }
+ }
}
-
- read_sbuf(fd, buf + dlen, len);
}
-
-static void discard_receive_data(int f_in, OFF_T length)
+static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
{
- receive_data(f_in, NULL, -1, 0, NULL, -1, length);
+ while (next_gen_i < desired_i) {
+ if (next_gen_i >= 0) {
+ rprintf(FINFO,
+ "(No batched update for%s \"%s\")\n",
+ phase ? " resend of" : "",
+ f_name(the_file_list->files[next_gen_i], NULL));
+ }
+ next_gen_i = read_int(batch_gen_fd);
+ if (next_gen_i == -1)
+ next_gen_i = the_file_list->count;
+ }
+ return next_gen_i;
}
* main routine for receiver process.
*
* Receiver process runs on the same host as the generator process. */
-int recv_files(int f_in, struct file_list *flist, char *local_name,
- int f_in_name)
+int recv_files(int f_in, struct file_list *flist, char *local_name)
{
int next_gen_i = -1;
int fd1,fd2;
STRUCT_STAT st;
- int iflags;
+ int iflags, xlen;
char *fname, fbuf[MAXPATHLEN];
- char template[MAXPATHLEN];
+ char xname[MAXPATHLEN];
char fnametmp[MAXPATHLEN];
char *fnamecmp, *partialptr, numbuf[4];
char fnamecmpbuf[MAXPATHLEN];
+ uchar fnamecmp_type;
struct file_struct *file;
struct stats initial_stats;
int save_make_backups = make_backups;
- int itemizing = am_daemon ? daemon_log_format_has_i
- : !am_server && log_format_has_i;
- int i, recv_ok, phase = 0;
+ int itemizing = am_server ? logfile_format_has_i : log_format_has_i;
+ int max_phase = protocol_version >= 29 ? 2 : 1;
+ int i, recv_ok;
if (verbose > 2)
rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
}
if (delay_updates)
- init_delayed_bits(flist->count);
+ delayed_bits = bitbag_create(flist->count);
while (1) {
cleanup_disable();
i = read_int(f_in);
if (i == -1) {
if (read_batch) {
- if (next_gen_i != flist->count) {
- do {
- if (f_in_name >= 0
- && next_gen_i >= 0)
- read_byte(f_in_name);
- } while (read_int(batch_gen_fd) != -1);
- }
+ get_next_gen_i(batch_gen_fd, next_gen_i,
+ flist->count);
next_gen_i = -1;
}
-
- if (phase)
+ if (++phase > max_phase)
break;
-
- phase = 1;
csum_length = SUM_LENGTH;
if (verbose > 2)
rprintf(FINFO, "recv_files phase=%d\n", phase);
+ if (phase == 2 && delay_updates)
+ handle_delayed_updates(flist, local_name);
send_msg(MSG_DONE, "", 0);
if (keep_partial && !partial_dir)
make_backups = 0; /* prevents double backup */
+ if (append_mode) {
+ append_mode = 0;
+ sparse_files = 0;
+ }
continue;
}
- if (i < 0 || i >= flist->count) {
- /* Handle the new keep-alive (no-op) packet. */
- if (i == flist->count && protocol_version >= 29
- && read_shortint(f_in) == ITEM_IS_NEW)
- continue;
- rprintf(FERROR,"Invalid file index %d in recv_files (count=%d)\n",
- i, flist->count);
- exit_cleanup(RERR_PROTOCOL);
- }
+ iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
+ xname, &xlen);
+ if (iflags == ITEM_IS_NEW) /* no-op packet */
+ continue;
file = flist->files[i];
- fname = local_name ? local_name : f_name_to(file, fbuf);
+ fname = local_name ? local_name : f_name(file, fbuf);
if (verbose > 2)
- rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));
-
- if (protocol_version >= 29) {
- iflags = read_shortint(f_in);
- if (!(iflags & ITEM_UPDATING) || !S_ISREG(file->mode)) {
- int see_item = itemizing && (iflags || verbose > 1);
- if (am_server) {
- if (am_daemon && !dry_run && see_item)
- log_recv(file, &stats, iflags);
- } else if (see_item || iflags & ITEM_UPDATING
- || (S_ISDIR(file->mode)
- && iflags & ITEM_REPORT_TIME))
- log_recv(file, &stats, iflags);
- continue;
- }
- } else
- iflags = ITEM_UPDATING | ITEM_MISSING_DATA;
+ rprintf(FINFO, "recv_files(%s)\n", fname);
- if (!S_ISREG(file->mode)) {
- rprintf(FERROR, "[%s] got index of non-regular file: %d\n",
- who_am_i(), i);
+ if (!(iflags & ITEM_TRANSFER)) {
+ maybe_log_item(file, iflags, itemizing, xname);
+ continue;
+ }
+ if (phase == 2) {
+ rprintf(FERROR,
+ "got transfer request in phase 2 [%s]\n",
+ who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
exit_cleanup(RERR_PROTOCOL);
}
- if (dry_run) { /* log the transfer */
+ if (!do_xfers) { /* log the transfer */
if (!am_server && log_format)
- log_recv(file, &stats, iflags);
+ log_item(file, &stats, iflags, NULL);
+ if (read_batch)
+ discard_receive_data(f_in, file->length);
+ continue;
+ }
+ if (write_batch < 0) {
+ log_item(file, &stats, iflags, NULL);
+ if (!am_server)
+ discard_receive_data(f_in, file->length);
continue;
}
if (read_batch) {
- while (i > next_gen_i) {
- if (f_in_name >= 0 && next_gen_i >= 0)
- read_byte(f_in_name);
- next_gen_i = read_int(batch_gen_fd);
- if (next_gen_i == -1)
- next_gen_i = flist->count;
- }
+ next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
if (i < next_gen_i) {
- rprintf(FINFO, "skipping update for \"%s\"\n",
- safe_fname(fname));
+ rprintf(FINFO,
+ "(Skipping batched update for \"%s\")\n",
+ fname);
discard_receive_data(f_in, file->length);
continue;
}
partialptr = partial_dir ? partial_dir_fname(fname) : fname;
- if (f_in_name >= 0) {
- uchar j;
- switch (j = read_byte(f_in_name)) {
+ if (protocol_version >= 29) {
+ switch (fnamecmp_type) {
case FNAMECMP_FNAME:
fnamecmp = fname;
break;
case FNAMECMP_PARTIAL_DIR:
- fnamecmp = partialptr ? partialptr : fname;
+ fnamecmp = partialptr;
break;
case FNAMECMP_BACKUP:
fnamecmp = get_backup_name(fname);
break;
case FNAMECMP_FUZZY:
- read_gen_name(f_in_name, file->dirname, fnamecmpbuf);
- fnamecmp = fnamecmpbuf;
+ if (file->dirname) {
+ pathjoin(fnamecmpbuf, MAXPATHLEN,
+ file->dirname, xname);
+ fnamecmp = fnamecmpbuf;
+ } else
+ fnamecmp = xname;
break;
default:
- if (j >= basis_dir_cnt) {
+ if (fnamecmp_type >= basis_dir_cnt) {
rprintf(FERROR,
"invalid basis_dir index: %d.\n",
- j);
+ fnamecmp_type);
exit_cleanup(RERR_PROTOCOL);
}
pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
- basis_dir[j], fname);
+ basis_dir[fnamecmp_type], fname);
fnamecmp = fnamecmpbuf;
break;
}
- } else
- fnamecmp = fname;
+ if (!fnamecmp || (server_filter_list.head
+ && check_filter(&server_filter_list, fname, 0) < 0))
+ fnamecmp = fname;
+ } else {
+ /* Reminder: --inplace && --partial-dir are never
+ * enabled at the same time. */
+ if (inplace && make_backups) {
+ if (!(fnamecmp = get_backup_name(fname)))
+ fnamecmp = fname;
+ } else if (partial_dir && partialptr)
+ fnamecmp = partialptr;
+ else
+ fnamecmp = fname;
+ }
initial_stats = stats;
/* open the file */
fd1 = do_open(fnamecmp, O_RDONLY, 0);
+ if (fd1 == -1 && protocol_version < 29) {
+ if (fnamecmp != fname) {
+ fnamecmp = fname;
+ fd1 = do_open(fnamecmp, O_RDONLY, 0);
+ }
+
+ if (fd1 == -1 && basis_dir[0]) {
+ /* pre-29 allowed only one alternate basis */
+ pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
+ basis_dir[0], fname);
+ fnamecmp = fnamecmpbuf;
+ fd1 = do_open(fnamecmp, O_RDONLY, 0);
+ }
+ }
+
if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
rsyserr(FERROR, errno, "fstat %s failed",
full_fname(fnamecmp));
fd1 = -1;
}
- if (fd1 != -1 && !preserve_perms) {
- /* if the file exists already and we aren't preserving
- * permissions then act as though the remote end sent
- * us the file permissions we already have */
- file->mode = st.st_mode;
+ /* If we're not preserving permissions, change the file-list's
+ * mode based on the local permissions and some heuristics. */
+ if (!preserve_perms) {
+ int exists = fd1 != -1;
+ file->mode = dest_mode(file->mode, st.st_mode, exists);
}
/* We now check to see if we are writing file "inplace" */
if (inplace) {
- fd2 = do_open(fname, O_WRONLY|O_CREAT, 0);
+ fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
if (fd2 == -1) {
rsyserr(FERROR, errno, "open %s failed",
full_fname(fname));
continue;
}
- strlcpy(template, fnametmp, sizeof template);
-
/* we initially set the perms without the
* setuid/setgid bits to ensure that there is no race
* condition. They are then correctly updated after
* because their information should have been previously
* transferred, but that may not be the case with -R */
if (fd2 == -1 && relative_paths && errno == ENOENT
- && create_directory_path(fnametmp, orig_umask) == 0) {
- strlcpy(fnametmp, template, sizeof fnametmp);
+ && create_directory_path(fnametmp) == 0) {
+ /* Get back to name with XXXXXX in it. */
+ get_tmpname(fnametmp, fname);
fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
}
if (fd2 == -1) {
continue;
}
- if (partialptr)
+ if (keep_partial)
cleanup_set(fnametmp, partialptr, file, fd1, fd2);
}
/* log the transfer */
if (log_before_transfer)
- log_recv(file, &initial_stats, iflags);
+ log_item(file, &initial_stats, iflags, NULL);
else if (!am_server && verbose && do_progress)
- rprintf(FINFO, "%s\n", safe_fname(fname));
+ rprintf(FINFO, "%s\n", fname);
/* recv file data */
recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
fname, fd2, file->length);
if (!log_before_transfer)
- log_recv(file, &initial_stats, iflags);
+ log_item(file, &initial_stats, iflags, NULL);
if (fd1 != -1)
close(fd1);
}
if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
- finish_transfer(fname, fnametmp, file, recv_ok, 1);
- if (partialptr != fname && fnamecmp == partialptr) {
+ char *temp_copy_name;
+ if (partialptr == fname)
+ partialptr = temp_copy_name = NULL;
+ else if (*partial_dir == '/')
+ temp_copy_name = NULL;
+ else
+ temp_copy_name = partialptr;
+ finish_transfer(fname, fnametmp, temp_copy_name,
+ file, recv_ok, 1);
+ if (fnamecmp == partialptr) {
do_unlink(partialptr);
handle_partial_dir(partialptr, PDIR_DELETE);
}
} else if (keep_partial && partialptr
&& handle_partial_dir(partialptr, PDIR_CREATE)) {
- finish_transfer(partialptr, fnametmp, file, recv_ok,
- !partial_dir);
+ finish_transfer(partialptr, fnametmp, NULL,
+ file, recv_ok, !partial_dir);
if (delay_updates && recv_ok) {
- set_delayed_bit(i);
+ bitbag_set_bit(delayed_bits, i);
recv_ok = -1;
}
} else {
cleanup_disable();
- if (recv_ok) {
- if (remove_sent_files && recv_ok > 0) {
+ if (recv_ok > 0) {
+ if (remove_sent_files
+ || (preserve_hard_links && file->link_u.links)) {
SIVAL(numbuf, 0, i);
send_msg(MSG_SUCCESS, numbuf, 4);
}
- } else {
- int msgtype = csum_length == SUM_LENGTH || read_batch ?
- FERROR : FINFO;
+ } else if (!recv_ok) {
+ int msgtype = phase || read_batch ? FERROR : FINFO;
if (msgtype == FERROR || verbose) {
char *errstr, *redostr, *keptstr;
if (!(keep_partial && partialptr) && !inplace)
}
rprintf(msgtype,
"%s: %s failed verification -- update %s%s.\n",
- errstr, safe_fname(fname),
- keptstr, redostr);
+ errstr, fname, keptstr, redostr);
}
- if (csum_length != SUM_LENGTH) {
+ if (!phase) {
SIVAL(numbuf, 0, i);
send_msg(MSG_REDO, numbuf, 4);
}
}
make_backups = save_make_backups;
- if (delay_updates) {
- for (i = -1; (i = next_delayed_bit(i)) >= 0; ) {
- struct file_struct *file = flist->files[i];
- fname = local_name ? local_name : f_name(file);
- partialptr = partial_dir_fname(fname);
- if (partialptr) {
- if (make_backups && !make_backup(fname))
- continue;
- if (verbose > 2) {
- rprintf(FINFO, "renaming %s to %s\n",
- safe_fname(partialptr),
- safe_fname(fname));
- }
- if (do_rename(partialptr, fname) < 0) {
- rsyserr(FERROR, errno,
- "rename failed for %s (from %s)",
- full_fname(fname),
- safe_fname(partialptr));
- } else {
- if (remove_sent_files) {
- SIVAL(numbuf, 0, i);
- send_msg(MSG_SUCCESS,numbuf,4);
- }
- handle_partial_dir(partialptr,
- PDIR_DELETE);
- }
- }
- }
- }
+ if (phase == 2 && delay_updates) /* for protocol_version < 29 */
+ handle_delayed_updates(flist, local_name);
if (verbose > 2)
rprintf(FINFO,"recv_files finished\n");
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff