* Copyright (C) 1996 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2004-2007 Wayne Davison
+ * Copyright (C) 2004-2009 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 int verbose;
extern int dry_run;
+extern int list_only;
extern int am_sender;
extern int inc_recurse;
extern int do_xfers;
extern int link_dest;
extern int preserve_acls;
+extern int preserve_xattrs;
extern int make_backups;
extern int protocol_version;
extern int remove_source_files;
void init_hard_links(void)
{
if (am_sender || protocol_version < 30)
- dev_tbl = hashtable_create(16, SIZEOF_INT64 == 8);
+ dev_tbl = hashtable_create(16, 1);
else if (inc_recurse)
prior_hlinks = hashtable_create(1024, 0);
}
static struct ht_int64_node *dev_node = NULL;
struct hashtable *tbl;
- if (!dev_node || dev_node->key != dev) {
+ /* Note that some OSes have a dev == 0, so increment to avoid storing a 0. */
+ if (!dev_node || dev_node->key != dev+1) {
/* We keep a separate hash table of inodes for every device. */
- dev_node = hashtable_find(dev_tbl, dev, 1);
+ dev_node = hashtable_find(dev_tbl, dev+1, 1);
if (!(tbl = dev_node->data))
- tbl = dev_node->data = hashtable_create(512, SIZEOF_INT64 == 8);
+ tbl = dev_node->data = hashtable_create(512, 1);
} else
tbl = dev_node->data;
if (inc_recurse) {
node = hashtable_find(prior_hlinks, gnum, 1);
if (!node->data) {
- node->data = new_array0(char, 5);
+ if (!(node->data = new_array0(char, 5)))
+ out_of_memory("match_gnums");
assert(gnum >= hlink_flist->ndx_start);
file->flags |= FLAG_HLINK_FIRST;
prev = -1;
} else if (CVAL(node->data, 0) == 0) {
struct file_list *flist;
- struct file_struct *fp;
prev = IVAL(node->data, 1);
- flist = flist_for_ndx(prev);
- assert(flist != NULL);
- fp = flist->files[prev - flist->ndx_start];
- fp->flags &= ~FLAG_HLINK_LAST;
+ flist = flist_for_ndx(prev, NULL);
+ if (flist)
+ flist->files[prev - flist->ndx_start]->flags &= ~FLAG_HLINK_LAST;
+ else {
+ /* We skipped all prior files in this
+ * group, so mark this as a "first". */
+ file->flags |= FLAG_HLINK_FIRST;
+ prev = -1;
+ }
} else
prev = -1;
} else {
if (gnum != gnum_next)
break;
F_HL_PREV(file) = prev;
- /* The linked list must use raw ndx values. */
+ /* The linked list uses over-the-wire ndx values. */
if (unsort_ndx)
prev = F_NDX(file);
else
* to first when we're done. */
void match_hard_links(struct file_list *flist)
{
- int i, ndx_count = 0;
- int32 *ndx_list;
+ if (!list_only && flist->used) {
+ int i, ndx_count = 0;
+ int32 *ndx_list;
- if (!(ndx_list = new_array(int32, flist->used)))
- out_of_memory("match_hard_links");
+ if (!(ndx_list = new_array(int32, flist->used)))
+ out_of_memory("match_hard_links");
- for (i = 0; i < flist->used; i++) {
- if (F_IS_HLINKED(flist->sorted[i]))
- ndx_list[ndx_count++] = i;
- }
+ for (i = 0; i < flist->used; i++) {
+ if (F_IS_HLINKED(flist->sorted[i]))
+ ndx_list[ndx_count++] = i;
+ }
- hlink_flist = flist;
+ hlink_flist = flist;
- if (ndx_count)
- match_gnums(ndx_list, ndx_count);
+ if (ndx_count)
+ match_gnums(ndx_list, ndx_count);
- free(ndx_list);
+ free(ndx_list);
+ }
if (protocol_version < 30)
idev_destroy();
}
if (!make_backup(fname))
return -1;
} else if (robust_unlink(fname)) {
- rsyserr(FERROR, errno, "unlink %s failed",
+ rsyserr(FERROR_XFER, errno, "unlink %s failed",
full_fname(fname));
return -1;
}
}
/* Figure out if a prior entry is still there or if we just have a
- * cached name for it. Never called with a FLAG_HLINK_FIRST entry. */
-static char *check_prior(int prev_ndx, int gnum, struct file_list **flist_p)
+ * cached name for it. */
+static char *check_prior(struct file_struct *file, int gnum,
+ int *prev_ndx_p, struct file_list **flist_p)
{
- struct file_list *flist = flist_for_ndx(prev_ndx);
+ struct file_struct *fp;
struct ht_int32_node *node;
+ int prev_ndx = F_HL_PREV(file);
- if (flist) {
- *flist_p = flist;
- return NULL;
+ while (1) {
+ struct file_list *flist;
+ if (prev_ndx < 0
+ || (flist = flist_for_ndx(prev_ndx, NULL)) == NULL)
+ break;
+ fp = flist->files[prev_ndx - flist->ndx_start];
+ if (!(fp->flags & FLAG_SKIP_HLINK)) {
+ *prev_ndx_p = prev_ndx;
+ *flist_p = flist;
+ return NULL;
+ }
+ F_HL_PREV(file) = prev_ndx = F_HL_PREV(fp);
+ }
+
+ if (inc_recurse
+ && (node = hashtable_find(prior_hlinks, gnum, 0)) != NULL) {
+ assert(node->data != NULL);
+ if (CVAL(node->data, 0) != 0) {
+ *prev_ndx_p = -1;
+ *flist_p = NULL;
+ return node->data;
+ }
+ /* The prior file must have been skipped. */
+ F_HL_PREV(file) = -1;
}
- node = hashtable_find(prior_hlinks, gnum, 0);
- assert(node != NULL && node->data);
- assert(CVAL(node->data, 0) != 0);
- return node->data;
+ *prev_ndx_p = -1;
+ *flist_p = NULL;
+ return NULL;
}
/* Only called if FLAG_HLINKED is set and FLAG_HLINK_FIRST is not. Returns:
char *realname, *prev_name;
struct file_list *flist;
int gnum = inc_recurse ? F_HL_GNUM(file) : -1;
- int prev_ndx = F_HL_PREV(file);
+ int prev_ndx;
- prev_name = realname = check_prior(prev_ndx, gnum, &flist);
+ prev_name = realname = check_prior(file, gnum, &prev_ndx, &flist);
if (!prev_name) {
- struct file_struct *prev_file = flist->files[prev_ndx - flist->ndx_start];
+ struct file_struct *prev_file;
- /* Is the previous link is not complete yet? */
+ if (!flist) {
+ /* The previous file was skipped, so this one is
+ * treated as if it were the first in its group. */
+ return 0;
+ }
+
+ prev_file = flist->files[prev_ndx - flist->ndx_start];
+
+ /* Is the previous link not complete yet? */
if (!(prev_file->flags & FLAG_HLINK_DONE)) {
/* Is the previous link being transferred? */
if (prev_file->flags & FLAG_FILE_SENT) {
- /* Add ourselves to the list of files that will be
- * updated when the transfer completes, and mark
- * ourself as waiting for the transfer. */
+ /* Add ourselves to the list of files that will
+ * be updated when the transfer completes, and
+ * mark ourself as waiting for the transfer. */
F_HL_PREV(file) = F_HL_PREV(prev_file);
F_HL_PREV(prev_file) = ndx;
file->flags |= FLAG_FILE_SENT;
/* There is a finished file to link with! */
if (!(prev_file->flags & FLAG_HLINK_FIRST)) {
/* The previous previous is FIRST when prev is not. */
- prev_ndx = F_HL_PREV(prev_file);
- prev_name = realname = check_prior(prev_ndx, gnum, &flist);
+ prev_name = realname = check_prior(prev_file, gnum, &prev_ndx, &flist);
+ assert(prev_name != NULL || flist != NULL);
/* Update our previous pointer to point to the FIRST. */
F_HL_PREV(file) = prev_ndx;
}
}
if (link_stat(prev_name, &prev_st, 0) < 0) {
- rsyserr(FERROR, errno, "stat %s failed",
- full_fname(prev_name));
- return -1;
+ if (!dry_run || errno != ENOENT) {
+ rsyserr(FERROR_XFER, errno, "stat %s failed", full_fname(prev_name));
+ return -1;
+ }
+ /* A new hard-link will get a new dev & inode, so approximate
+ * those values in dry-run mode by zeroing them. */
+ memset(&prev_st, 0, sizeof prev_st);
}
if (statret < 0 && basis_dir[0] != NULL) {
int j = 0;
#ifdef SUPPORT_ACLS
alt_sx.acc_acl = alt_sx.def_acl = NULL;
+#endif
+#ifdef SUPPORT_XATTRS
+ alt_sx.xattr = NULL;
#endif
do {
pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
sxp->st = alt_sx.st;
#ifdef SUPPORT_ACLS
if (preserve_acls && !S_ISLNK(file->mode)) {
- if (!ACL_READY(*sxp))
+ free_acl(sxp);
+ if (!ACL_READY(alt_sx))
get_acl(cmpbuf, sxp);
else {
sxp->acc_acl = alt_sx.acc_acl;
sxp->def_acl = alt_sx.def_acl;
+ alt_sx.acc_acl = alt_sx.def_acl = NULL;
}
}
#endif
- }
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs) {
+ free_xattr(sxp);
+ if (!XATTR_READY(alt_sx))
+ get_xattr(cmpbuf, sxp);
+ else {
+ sxp->xattr = alt_sx.xattr;
+ alt_sx.xattr = NULL;
+ }
+ }
+#endif
+ } else {
#ifdef SUPPORT_ACLS
- else if (preserve_acls)
- free_acl(&alt_sx);
+ if (preserve_acls)
+ free_acl(&alt_sx);
#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs)
+ free_xattr(&alt_sx);
+#endif
+ }
}
if (maybe_hard_link(file, ndx, fname, statret, sxp, prev_name, &prev_st,
enum logcode code;
if (terse) {
if (!verbose)
- return -1;
+ return 0;
code = FINFO;
} else
- code = FERROR;
+ code = FERROR_XFER;
rsyserr(code, errno, "link %s => %s failed",
full_fname(fname), oldname);
return 0;
{
stat_x prev_sx;
STRUCT_STAT st;
- char alt_name[MAXPATHLEN], *prev_name;
+ char prev_name[MAXPATHLEN], alt_name[MAXPATHLEN];
const char *our_name;
struct file_list *flist;
int prev_statret, ndx, prev_ndx = F_HL_PREV(file);
if (stp == NULL && prev_ndx >= 0) {
if (link_stat(fname, &st, 0) < 0) {
- rsyserr(FERROR, errno, "stat %s failed",
+ rsyserr(FERROR_XFER, errno, "stat %s failed",
full_fname(fname));
return;
}
#ifdef SUPPORT_ACLS
prev_sx.acc_acl = prev_sx.def_acl = NULL;
#endif
+#ifdef SUPPORT_XATTRS
+ prev_sx.xattr = NULL;
+#endif
while ((ndx = prev_ndx) >= 0) {
int val;
- flist = flist_for_ndx(ndx);
- assert(flist != NULL);
+ flist = flist_for_ndx(ndx, "finish_hard_link");
file = flist->files[ndx - flist->ndx_start];
file->flags = (file->flags & ~FLAG_HLINK_FIRST) | FLAG_HLINK_DONE;
prev_ndx = F_HL_PREV(file);
F_HL_PREV(file) = fin_ndx;
- prev_name = f_name(file, NULL);
- prev_statret = link_stat(prev_name, &prev_sx.st, 0);
+ prev_statret = link_stat(f_name(file, prev_name), &prev_sx.st, 0);
val = maybe_hard_link(file, ndx, prev_name, prev_statret, &prev_sx,
our_name, stp, fname, itemizing, code);
flist->in_progress--;
#ifdef SUPPORT_ACLS
if (preserve_acls)
free_acl(&prev_sx);
+#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs)
+ free_xattr(&prev_sx);
#endif
if (val < 0)
continue;
if (inc_recurse) {
int gnum = F_HL_GNUM(file);
struct ht_int32_node *node = hashtable_find(prior_hlinks, gnum, 0);
- assert(node != NULL && node->data != NULL);
- assert(CVAL(node->data, 0) == 0);
+ if (node == NULL) {
+ rprintf(FERROR, "Unable to find a hlink node for %d (%s)\n", gnum, f_name(file, prev_name));
+ exit_cleanup(RERR_MESSAGEIO);
+ }
+ if (node->data == NULL) {
+ rprintf(FERROR, "Hlink node data for %d is NULL (%s)\n", gnum, f_name(file, prev_name));
+ exit_cleanup(RERR_MESSAGEIO);
+ }
+ if (CVAL(node->data, 0) != 0) {
+ rprintf(FERROR, "Hlink node data for %d already has path=%s (%s)\n",
+ gnum, (char*)node->data, f_name(file, prev_name));
+ exit_cleanup(RERR_MESSAGEIO);
+ }
free(node->data);
if (!(node->data = strdup(our_name)))
out_of_memory("finish_hard_link");
}
}
+
+int skip_hard_link(struct file_struct *file, struct file_list **flist_p)
+{
+ struct file_list *flist;
+ int prev_ndx;
+
+ file->flags |= FLAG_SKIP_HLINK;
+ if (!(file->flags & FLAG_HLINK_LAST))
+ return -1;
+
+ check_prior(file, F_HL_GNUM(file), &prev_ndx, &flist);
+ if (prev_ndx >= 0) {
+ file = flist->files[prev_ndx - flist->ndx_start];
+ if (file->flags & (FLAG_HLINK_DONE|FLAG_FILE_SENT))
+ return -1;
+ file->flags |= FLAG_HLINK_LAST;
+ *flist_p = flist;
+ }
+
+ return prev_ndx;
+}
#endif
git.samba.org / rsync.git / blobdiff