* Copyright (C) 1996 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2004-2008 Wayne Davison
+ * Copyright (C) 2004-2022 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
*/
#include "rsync.h"
+#include "inums.h"
+#include "ifuncs.h"
-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 alt_dest_type;
extern int preserve_acls;
-extern int make_backups;
+extern int preserve_xattrs;
extern int protocol_version;
extern int remove_source_files;
extern int stdout_format_has_i;
extern int maybe_ATTRS_REPORT;
extern int unsort_ndx;
-extern char *basis_dir[];
+extern char *basis_dir[MAX_BASIS_DIRS+1];
extern struct file_list *cur_flist;
#ifdef SUPPORT_HARD_LINKS
* we can avoid the pool of dev+inode data. For incremental recursion mode,
* the receiver will use a ndx hash to remember old pathnames. */
+static void *data_when_new = "";
+
static struct hashtable *dev_tbl;
static struct hashtable *prior_hlinks;
void init_hard_links(void)
{
if (am_sender || protocol_version < 30)
- dev_tbl = hashtable_create(16, SIZEOF_INT64 == 8);
+ dev_tbl = hashtable_create(16, HT_KEY64);
else if (inc_recurse)
- prior_hlinks = hashtable_create(1024, 0);
+ prior_hlinks = hashtable_create(1024, HT_KEY32);
}
struct ht_int64_node *idev_find(int64 dev, int64 ino)
{
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);
- if (!(tbl = dev_node->data))
- tbl = dev_node->data = hashtable_create(512, SIZEOF_INT64 == 8);
- } else
- tbl = dev_node->data;
+ dev_node = hashtable_find(dev_tbl, dev+1, data_when_new);
+ if (dev_node->data == data_when_new) {
+ dev_node->data = hashtable_create(512, HT_KEY64);
+ if (DEBUG_GTE(HLINK, 3)) {
+ rprintf(FINFO, "[%s] created hashtable for dev %s\n",
+ who_am_i(), big_num(dev));
+ }
+ }
+ }
- return hashtable_find(tbl, ino, 1);
+ return hashtable_find(dev_node->data, ino, (void*)-1L);
}
void idev_destroy(void)
struct ht_int32_node *node = NULL;
int32 gnum, gnum_next;
- qsort(ndx_list, ndx_count, sizeof ndx_list[0],
- (int (*)()) hlink_compare_gnum);
+ qsort(ndx_list, ndx_count, sizeof ndx_list[0], (int (*)()) hlink_compare_gnum);
for (from = 0; from < ndx_count; from++) {
file = hlink_flist->sorted[ndx_list[from]];
gnum = F_HL_GNUM(file);
if (inc_recurse) {
- node = hashtable_find(prior_hlinks, gnum, 1);
- if (!node->data) {
+ node = hashtable_find(prior_hlinks, gnum, data_when_new);
+ if (node->data == data_when_new) {
node->data = new_array0(char, 5);
assert(gnum >= hlink_flist->ndx_start);
file->flags |= FLAG_HLINK_FIRST;
} else if (CVAL(node->data, 0) == 0) {
struct file_list *flist;
prev = IVAL(node->data, 1);
- flist = flist_for_ndx(prev);
+ flist = flist_for_ndx(prev, NULL);
if (flist)
flist->files[prev - flist->ndx_start]->flags &= ~FLAG_HLINK_LAST;
else {
* to first when we're done. */
void match_hard_links(struct file_list *flist)
{
- if (!list_only) {
+ 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");
+ ndx_list = new_array(int32, flist->used);
for (i = 0; i < flist->used; i++) {
if (F_IS_HLINKED(flist->sorted[i]))
}
static int maybe_hard_link(struct file_struct *file, int ndx,
- const char *fname, int statret, stat_x *sxp,
+ char *fname, int statret, stat_x *sxp,
const char *oldname, STRUCT_STAT *old_stp,
const char *realname, int itemizing, enum logcode code)
{
ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
0, "");
}
- if (verbose > 1 && maybe_ATTRS_REPORT)
+ if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT)
rprintf(FCLIENT, "%s is uptodate\n", fname);
file->flags |= FLAG_HLINK_DONE;
return 0;
}
- if (make_backups > 0) {
- if (!make_backup(fname))
- return -1;
- } else if (robust_unlink(fname)) {
- rsyserr(FERROR_XFER, errno, "unlink %s failed",
- full_fname(fname));
- return -1;
- }
}
- if (hard_link_one(file, fname, oldname, 0)) {
+ if (atomic_create(file, fname, NULL, oldname, MAKEDEV(0, 0), sxp, statret == 0 ? DEL_FOR_FILE : 0)) {
if (itemizing) {
itemize(fname, file, ndx, statret, sxp,
ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS, 0,
realname);
}
- if (code != FNONE && verbose)
+ if (code != FNONE && INFO_GTE(NAME, 1))
rprintf(code, "%s => %s\n", fname, realname);
return 0;
}
+
return -1;
}
int *prev_ndx_p, struct file_list **flist_p)
{
struct file_struct *fp;
- struct file_list *flist;
struct ht_int32_node *node;
int prev_ndx = F_HL_PREV(file);
while (1) {
- if (prev_ndx < 0) {
- *prev_ndx_p = prev_ndx;
- *flist_p = NULL;
- return NULL;
- }
- if ((flist = flist_for_ndx(prev_ndx)) == NULL)
+ 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)) {
F_HL_PREV(file) = prev_ndx = F_HL_PREV(fp);
}
- node = hashtable_find(prior_hlinks, gnum, 0);
- assert(node != NULL && node->data);
-
- if (CVAL(node->data, 0) == 0) {
+ if (inc_recurse
+ && (node = hashtable_find(prior_hlinks, gnum, NULL)) != 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) = prev_ndx = -1;
- *prev_ndx_p = prev_ndx;
- *flist_p = NULL;
- return NULL;
+ F_HL_PREV(file) = -1;
}
- *prev_ndx_p = prev_ndx;
- *flist_p = flist;
- 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:
* 0 = process the file, 1 = skip the file, -1 = error occurred. */
-int hard_link_check(struct file_struct *file, int ndx, const char *fname,
+int hard_link_check(struct file_struct *file, int ndx, char *fname,
int statret, stat_x *sxp, int itemizing,
enum logcode code)
{
if (!flist) {
/* The previous file was skipped, so this one is
* treated as if it were the first in its group. */
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): virtual first\n",
+ ndx, f_name(file, NULL), gnum);
+ }
return 0;
}
F_HL_PREV(prev_file) = ndx;
file->flags |= FLAG_FILE_SENT;
cur_flist->in_progress++;
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): waiting for %d\n",
+ ndx, f_name(file, NULL), gnum, F_HL_PREV(file));
+ }
return 1;
}
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): looking for a leader\n",
+ ndx, f_name(file, NULL), gnum);
+ }
return 0;
}
if (!(prev_file->flags & FLAG_HLINK_FIRST)) {
/* The previous previous is FIRST when prev is not. */
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 (!prev_name) {
int alt_dest;
+ assert(flist != NULL);
prev_file = flist->files[prev_ndx - flist->ndx_start];
/* F_HL_PREV() is alt_dest value when DONE && FIRST. */
alt_dest = F_HL_PREV(prev_file);
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): found flist match (alt %d)\n",
+ ndx, f_name(file, NULL), gnum, alt_dest);
+ }
if (alt_dest >= 0 && dry_run) {
pathjoin(namebuf, MAXPATHLEN, basis_dir[alt_dest],
}
}
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): leader is %d (%s)\n",
+ ndx, f_name(file, NULL), gnum, prev_ndx, prev_name);
+ }
+
if (link_stat(prev_name, &prev_st, 0) < 0) {
- rsyserr(FERROR_XFER, 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) {
char cmpbuf[MAXPATHLEN];
stat_x alt_sx;
int j = 0;
-#ifdef SUPPORT_ACLS
- alt_sx.acc_acl = alt_sx.def_acl = NULL;
-#endif
+ init_stat_x(&alt_sx);
do {
pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
if (link_stat(cmpbuf, &alt_sx.st, 0) < 0)
continue;
- if (link_dest) {
+ if (alt_dest_type == LINK_DEST) {
if (prev_st.st_dev != alt_sx.st.st_dev
|| prev_st.st_ino != alt_sx.st.st_ino)
continue;
statret = 1;
if (stdout_format_has_i == 0
- || (verbose < 2 && stdout_format_has_i < 2)) {
+ || (!INFO_GTE(NAME, 2) && stdout_format_has_i < 2)) {
itemizing = 0;
code = FNONE;
- if (verbose > 1 && maybe_ATTRS_REPORT)
+ if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT)
rprintf(FCLIENT, "%s is uptodate\n", fname);
}
break;
}
- if (!unchanged_file(cmpbuf, file, &alt_sx.st))
+ if (!quick_check_ok(FT_REG, cmpbuf, file, &alt_sx.st))
continue;
statret = 1;
if (unchanged_attrs(cmpbuf, file, &alt_sx))
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_ACLS
- else if (preserve_acls)
- free_acl(&alt_sx);
+#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
+ free_stat_x(&alt_sx);
}
if (maybe_hard_link(file, ndx, fname, statret, sxp, prev_name, &prev_st,
return -1;
if (remove_source_files == 1 && do_xfers)
- send_msg_int(MSG_SUCCESS, ndx);
+ send_msg_success(fname, ndx);
return 1;
}
if (do_link(oldname, fname) < 0) {
enum logcode code;
if (terse) {
- if (!verbose)
+ if (!INFO_GTE(NAME, 1))
return 0;
code = FINFO;
} else
{
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) {
+ if (link_stat(fname, &st, 0) < 0 && !dry_run) {
rsyserr(FERROR_XFER, errno, "stat %s failed",
full_fname(fname));
return;
} else
our_name = fname;
-#ifdef SUPPORT_ACLS
- prev_sx.acc_acl = prev_sx.def_acl = NULL;
-#endif
+ init_stat_x(&prev_sx);
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
+ free_stat_x(&prev_sx);
if (val < 0)
continue;
if (remove_source_files == 1 && do_xfers)
- send_msg_int(MSG_SUCCESS, ndx);
+ send_msg_success(fname, ndx);
}
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);
+ struct ht_int32_node *node = hashtable_find(prior_hlinks, gnum, NULL);
+ 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");
+ node->data = strdup(our_name);
}
}
git.samba.org / rsync.git / blobdiff