/*
- Copyright (C) Andrew Tridgell 1996
- Copyright (C) Paul Mackerras 1996
- Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
-
- 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.
-*/
-
-/** @file flist.c
- * Generate and receive file lists
+ * Generate and receive file lists.
*
- * @sa http://lists.samba.org/pipermail/rsync/2000-June/002351.html
+ * Copyright (C) 1996 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
+ * Copyright (C) 2002, 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 list_only;
extern int am_root;
extern int am_server;
extern int xfer_dirs;
extern int filesfrom_fd;
extern int one_file_system;
+extern int copy_dirlinks;
extern int keep_dirlinks;
extern int preserve_links;
extern int preserve_hard_links;
-extern int preserve_perms;
extern int preserve_devices;
+extern int preserve_specials;
extern int preserve_uid;
extern int preserve_gid;
extern int relative_paths;
extern int implied_dirs;
+extern int prune_empty_dirs;
extern int copy_links;
extern int copy_unsafe_links;
extern int protocol_version;
extern int sanitize_paths;
-extern int orig_umask;
extern struct stats stats;
extern struct file_list *the_file_list;
int io_error;
int checksum_len;
dev_t filesystem_dev; /* used to implement -x */
+unsigned int file_struct_len;
static char empty_sum[MD4_SUM_LENGTH];
static int flist_count_offset;
-static unsigned int file_struct_len;
static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
static void output_flist(struct file_list *flist);
static void list_file_entry(struct file_struct *f)
{
- char perms[11];
+ char permbuf[PERMSTRING_SIZE];
if (!f->basename) {
/* this can happen if duplicate names were removed */
return;
}
- permstring(perms, f->mode);
+ permstring(permbuf, f->mode);
#ifdef SUPPORT_LINKS
if (preserve_links && S_ISLNK(f->mode)) {
rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
- perms,
+ permbuf,
(double)f->length, timestring(f->modtime),
f_name(f, NULL), f->u.link);
} else
#endif
{
rprintf(FINFO, "%s %11.0f %s %s\n",
- perms,
+ permbuf,
(double)f->length, timestring(f->modtime),
f_name(f, NULL));
}
#ifdef SUPPORT_LINKS
if (copy_links)
return do_stat(path, buffer);
- if (link_stat(path, buffer, 0) < 0)
+ if (link_stat(path, buffer, copy_dirlinks) < 0)
return -1;
if (S_ISLNK(buffer->st_mode)) {
int l = readlink((char *)path, linkbuf, MAXPATHLEN - 1);
return;
}
- io_write_phase = "send_file_entry";
-
f_name(file, fname);
flags = file->flags & XMIT_TOP_DIR;
flags |= XMIT_SAME_MODE;
else
mode = file->mode;
- if (preserve_devices) {
+ if ((preserve_devices && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode))) {
if (protocol_version < 28) {
- if (IS_DEVICE(mode)) {
- if (file->u.rdev == rdev)
- flags |= XMIT_SAME_RDEV_pre28;
- else
- rdev = file->u.rdev;
- } else
- rdev = makedev(0, 0);
- } else if (IS_DEVICE(mode)) {
+ if (file->u.rdev == rdev)
+ flags |= XMIT_SAME_RDEV_pre28;
+ else
+ rdev = file->u.rdev;
+ } else {
rdev = file->u.rdev;
if ((uint32)major(rdev) == rdev_major)
flags |= XMIT_SAME_RDEV_MAJOR;
if ((uint32)minor(rdev) <= 0xFFu)
flags |= XMIT_RDEV_MINOR_IS_SMALL;
}
- }
+ } else if (protocol_version < 28)
+ rdev = makedev(0, 0);
if (file->uid == uid)
flags |= XMIT_SAME_UID;
else
add_gid(gid);
write_int(f, gid);
}
- if (preserve_devices && IS_DEVICE(mode)) {
+ if ((preserve_devices && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode))) {
if (protocol_version < 28) {
if (!(flags & XMIT_SAME_RDEV_pre28))
write_int(f, (int)rdev);
}
strlcpy(lastname, fname, MAXPATHLEN);
-
- io_write_phase = "unknown";
}
static struct file_struct *receive_file_entry(struct file_list *flist,
if (!(flags & XMIT_SAME_MODE))
mode = from_wire_mode(read_int(f));
- if (chmod_modes && (S_ISREG(mode) || S_ISDIR(mode)))
+ if (chmod_modes && !S_ISLNK(mode))
mode = tweak_mode(mode, chmod_modes);
if (preserve_uid && !(flags & XMIT_SAME_UID))
if (preserve_gid && !(flags & XMIT_SAME_GID))
gid = (gid_t)read_int(f);
- if (preserve_devices) {
+ if ((preserve_devices && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode))) {
if (protocol_version < 28) {
- if (IS_DEVICE(mode)) {
- if (!(flags & XMIT_SAME_RDEV_pre28))
- rdev = (dev_t)read_int(f);
- } else
- rdev = makedev(0, 0);
- } else if (IS_DEVICE(mode)) {
+ if (!(flags & XMIT_SAME_RDEV_pre28))
+ rdev = (dev_t)read_int(f);
+ } else {
uint32 rdev_minor;
if (!(flags & XMIT_SAME_RDEV_MAJOR))
rdev_major = read_int(f);
rdev_minor = read_int(f);
rdev = makedev(rdev_major, rdev_minor);
}
- }
+ } else if (protocol_version < 28)
+ rdev = makedev(0, 0);
#ifdef SUPPORT_LINKS
if (preserve_links && S_ISLNK(mode)) {
memset(bp, 0, file_struct_len);
bp += file_struct_len;
- file->flags = 0;
file->modtime = modtime;
file->length = file_length;
file->mode = mode;
in_del_hier = recurse;
del_hier_name_len = file->dir.depth == 0 ? 0 : l1 + l2;
if (relative_paths && del_hier_name_len > 2
- && basename_len == 1+1 && *basename == '.')
+ && lastname[del_hier_name_len-1] == '.'
+ && lastname[del_hier_name_len-2] == '/')
del_hier_name_len -= 2;
file->flags |= FLAG_TOP_DIR | FLAG_DEL_HERE;
} else if (in_del_hier) {
if (!relative_paths || !del_hier_name_len
|| (l1 >= del_hier_name_len
- && thisname[del_hier_name_len] == '/'))
+ && lastname[del_hier_name_len] == '/'))
file->flags |= FLAG_DEL_HERE;
else
in_del_hier = 0;
memcpy(bp, basename, basename_len);
bp += basename_len;
- if (preserve_devices && IS_DEVICE(mode))
+ if ((preserve_devices && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode)))
file->u.rdev = rdev;
#ifdef SUPPORT_LINKS
read_buf(f, sum, checksum_len);
}
- if (!preserve_perms) {
- /* set an appropriate set of permissions based on original
- * permissions and umask. This emulates what GNU cp does */
- file->mode &= ~orig_umask;
- }
-
return file;
}
* into a mount-point directory, not to avoid copying a symlinked
* file if -L (or similar) was specified. */
if (one_file_system && st.st_dev != filesystem_dev
- && S_ISDIR(st.st_mode)) {
- if (one_file_system > 1)
+ && S_ISDIR(st.st_mode)) {
+ if (one_file_system > 1) {
+ if (verbose > 2) {
+ rprintf(FINFO, "skipping mount-point dir %s\n",
+ thisname);
+ }
return NULL;
+ }
flags |= FLAG_MOUNT_POINT;
}
bp += basename_len;
#ifdef HAVE_STRUCT_STAT_ST_RDEV
- if (preserve_devices && IS_DEVICE(st.st_mode))
+ if ((preserve_devices && IS_DEVICE(st.st_mode))
+ || (preserve_specials && IS_SPECIAL(st.st_mode)))
file->u.rdev = st.st_rdev;
#endif
if (!file)
return NULL;
- if (chmod_modes && (S_ISREG(file->mode) || S_ISDIR(file->mode)))
+ if (chmod_modes && !S_ISLNK(file->mode))
file->mode = tweak_mode(file->mode, chmod_modes);
maybe_emit_filelist_progress(flist->count + flist_count_offset);
&& (len == 1 || fbuf[len-2] == '/');
}
- if (link_stat(fbuf, &st, keep_dirlinks) != 0) {
+ if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
io_error |= IOERR_GENERAL;
rsyserr(FERROR, errno, "link_stat %s failed",
full_fname(fbuf));
if (fn != p || (*lp && *lp != '/')) {
int save_copy_links = copy_links;
int save_xfer_dirs = xfer_dirs;
- copy_links = copy_unsafe_links;
+ copy_links |= copy_unsafe_links;
xfer_dirs = 1;
while ((slash = strchr(slash+1, '/')) != 0) {
*slash = '\0';
* without causing a compatibility problem with older versions. */
clean_flist(flist, 0, 0);
- /* Now send the uid/gid list. This was introduced in
- * protocol version 15 */
send_uid_list(f);
/* send the io_error flag */
flags |= read_byte(f) << 8;
file = receive_file_entry(flist, flags, f);
- if (S_ISREG(file->mode))
+ if (S_ISREG(file->mode) || S_ISLNK(file->mode))
stats.total_size += file->length;
flist->files[flist->count++] = file;
clean_flist(flist, relative_paths, 1);
if (f >= 0) {
- /* Now send the uid/gid list. This was introduced in
- * protocol version 15 */
recv_uid_list(f, flist);
/* Recv the io_error flag */
int flist_find(struct file_list *flist, struct file_struct *f)
{
int low = flist->low, high = flist->high;
- int ret, mid, mid_up;
+ int diff, mid, mid_up;
while (low <= high) {
mid = (low + high) / 2;
- for (mid_up = mid; !flist->files[mid_up]->basename; mid_up++) {}
- if (mid_up <= high)
- ret = f_name_cmp(flist->files[mid_up], f);
- else
- ret = 1;
- if (ret == 0) {
+ if (flist->files[mid]->basename)
+ mid_up = mid;
+ else {
+ /* Scan for the next non-empty entry using the cached
+ * distance values. If the value isn't fully up-to-
+ * date, update it. */
+ mid_up = mid + flist->files[mid]->dir.depth;
+ if (!flist->files[mid_up]->basename) {
+ do {
+ mid_up += flist->files[mid_up]->dir.depth;
+ } while (!flist->files[mid_up]->basename);
+ flist->files[mid]->dir.depth = mid_up - mid;
+ }
+ if (mid_up > high) {
+ /* If there's nothing left above us, set high to
+ * a non-empty entry below us and continue. */
+ high = mid - flist->files[mid]->length;
+ if (!flist->files[high]->basename) {
+ do {
+ high -= flist->files[high]->length;
+ } while (!flist->files[high]->basename);
+ flist->files[mid]->length = mid - high;
+ }
+ continue;
+ }
+ }
+ diff = f_name_cmp(flist->files[mid_up], f);
+ if (diff == 0) {
if (protocol_version < 29
&& S_ISDIR(flist->files[mid_up]->mode)
!= S_ISDIR(f->mode))
return -1;
return mid_up;
}
- if (ret > 0)
- high = mid - 1;
- else
+ if (diff < 0)
low = mid_up + 1;
+ else
+ high = mid - 1;
}
return -1;
}
* Free up any resources a file_struct has allocated
* and clear the file.
*/
-void clear_file(int i, struct file_list *flist)
+void clear_file(struct file_struct *file, struct file_list *flist)
{
- if (flist->hlink_pool && flist->files[i]->link_u.idev)
- pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
- memset(flist->files[i], 0, file_struct_len);
+ if (flist->hlink_pool && file->link_u.idev)
+ pool_free(flist->hlink_pool, 0, file->link_u.idev);
+ memset(file, 0, file_struct_len);
+ /* In an empty entry, dir.depth is an offset to the next non-empty
+ * entry. Likewise for length in the opposite direction. We assume
+ * that we're alone for now since flist_find() will adjust the counts
+ * it runs into that aren't up-to-date. */
+ file->length = file->dir.depth = 1;
}
/*
*/
static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
{
+ char fbuf[MAXPATHLEN];
int i, prev_i = 0;
if (!flist)
if (verbose > 1 && !am_server) {
rprintf(FINFO,
"removing duplicate name %s from file list (%d)\n",
- f_name(file, NULL), drop);
+ f_name(file, fbuf), drop);
}
- /* Make sure that if we unduplicate '.', that we don't
- * lose track of a user-specified top directory. */
+ /* Make sure we don't lose track of a user-specified
+ * top directory. */
flist->files[keep]->flags |= flist->files[drop]->flags
& (FLAG_TOP_DIR|FLAG_DEL_HERE);
- clear_file(drop, flist);
+ clear_file(flist->files[drop], flist);
if (keep == i) {
if (flist->low == drop) {
if (!file->dirname)
continue;
- if (*file->dirname == '/') {
- char *s = file->dirname + 1;
- while (*s == '/') s++;
- memmove(file->dirname, s, strlen(s) + 1);
- }
-
+ while (*file->dirname == '/')
+ file->dirname++;
if (!*file->dirname)
file->dirname = NULL;
}
}
+
+ if (prune_empty_dirs && no_dups) {
+ int j, prev_depth = 0;
+
+ prev_i = 0; /* It's OK that this isn't really true. */
+
+ for (i = flist->low; i <= flist->high; i++) {
+ struct file_struct *fp, *file = flist->files[i];
+
+ /* This temporarily abuses the dir.depth value for a
+ * directory that is in a chain that might get pruned.
+ * We restore the old value if it gets a reprieve. */
+ if (S_ISDIR(file->mode) && file->dir.depth) {
+ /* Dump empty dirs when coming back down. */
+ for (j = prev_depth; j >= file->dir.depth; j--) {
+ fp = flist->files[prev_i];
+ if (fp->dir.depth >= 0)
+ break;
+ prev_i = -fp->dir.depth-1;
+ clear_file(fp, flist);
+ }
+ prev_depth = file->dir.depth;
+ if (is_excluded(f_name(file, fbuf), 1,
+ ALL_FILTERS)) {
+ /* Keep dirs through this dir. */
+ for (j = prev_depth-1; ; j--) {
+ fp = flist->files[prev_i];
+ if (fp->dir.depth >= 0)
+ break;
+ prev_i = -fp->dir.depth-1;
+ fp->dir.depth = j;
+ }
+ } else
+ file->dir.depth = -prev_i-1;
+ prev_i = i;
+ } else {
+ /* Keep dirs through this non-dir. */
+ for (j = prev_depth; ; j--) {
+ fp = flist->files[prev_i];
+ if (fp->dir.depth >= 0)
+ break;
+ prev_i = -fp->dir.depth-1;
+ fp->dir.depth = j;
+ }
+ }
+ }
+ /* Dump empty all remaining empty dirs. */
+ while (1) {
+ struct file_struct *fp = flist->files[prev_i];
+ if (fp->dir.depth >= 0)
+ break;
+ prev_i = -fp->dir.depth-1;
+ clear_file(fp, flist);
+ }
+
+ for (i = flist->low; i <= flist->high; i++) {
+ if (flist->files[i]->basename)
+ break;
+ }
+ flist->low = i;
+ for (i = flist->high; i >= flist->low; i--) {
+ if (flist->files[i]->basename)
+ break;
+ }
+ flist->high = i;
+ }
}
static void output_flist(struct file_list *flist)
struct file_list *dirlist;
char dirbuf[MAXPATHLEN];
int save_recurse = recurse;
+ int save_xfer_dirs = xfer_dirs;
if (dlen < 0) {
dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
dirlist = flist_new(WITHOUT_HLINK, "get_dirlist");
recurse = 0;
+ xfer_dirs = 1;
send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen);
+ xfer_dirs = save_xfer_dirs;
recurse = save_recurse;
if (do_progress)
flist_count_offset += dirlist->count;
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