X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/3cd5301f401add0bfab69c28e8c82e62c40f31db..e7c67065c060d500eba8d073da9568db2c658aad:/hlink.c

diff --git a/hlink.c b/hlink.c
index 49d3530d..c5547eb4 100644
--- a/hlink.c
+++ b/hlink.c
@@ -1,28 +1,33 @@
 /*
-   Copyright (C) Andrew Tridgell 1996
-   Copyright (C) Paul Mackerras 1996
-   Copyright (C) 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.
-*/
+ * Routines to support hard-linking.
+ *
+ * Copyright (C) 1996 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2002 Martin Pool <mbp@samba.org>
+ * Copyright (C) 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 dry_run;
 extern int verbose;
+extern int link_dest;
 extern int make_backups;
+extern int log_format_has_i;
+extern char *basis_dir[];
 extern struct file_list *the_file_list;
 
 #ifdef SUPPORT_HARD_LINKS
@@ -172,26 +177,49 @@ int hard_link_check(struct file_struct *file, int ndx, char *fname,
 {
 #ifdef SUPPORT_HARD_LINKS
 	int head;
-	if (!file->link_u.links)
-		return 0;
 	if (skip && !(file->flags & FLAG_HLINK_EOL))
 		head = hlink_list[file->F_HLINDEX] = file->F_NEXT;
 	else
 		head = hlink_list[file->F_HLINDEX];
 	if (ndx != head) {
 		struct file_struct *head_file = FPTR(head);
-		if (verbose > 2) {
+		if (!log_format_has_i && verbose > 1) {
 			rprintf(FINFO, "\"%s\" is a hard link\n",
-				safe_fname(f_name(file)));
+				f_name(file, NULL));
 		}
 		if (head_file->F_HLINDEX == FINISHED_LINK) {
-			STRUCT_STAT st2;
-			char *toname = f_name(head_file);
+			STRUCT_STAT st2, st3;
+			char *toname = f_name(head_file, NULL);
 			if (link_stat(toname, &st2, 0) < 0) {
 				rsyserr(FERROR, errno, "stat %s failed",
 					full_fname(toname));
 				return -1;
 			}
+			if (statret < 0 && basis_dir[0] != NULL) {
+				char cmpbuf[MAXPATHLEN];
+				int j = 0;
+				do {
+					pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
+					if (link_stat(cmpbuf, &st3, 0) < 0)
+						continue;
+					if (link_dest) {
+						if (st2.st_dev != st3.st_dev
+						 || st2.st_ino != st3.st_ino)
+							continue;
+						statret = 1;
+						st = &st3;
+						if (verbose < 2 || !log_format_has_i)
+							itemizing = code = 0;
+						break;
+					}
+					if (!unchanged_file(cmpbuf, file, &st3))
+						continue;
+					statret = 1;
+					st = &st3;
+					if (unchanged_attrs(file, &st3))
+						break;
+				} while (basis_dir[++j] != NULL);
+			}
 			maybe_hard_link(file, ndx, fname, statret, st,
 					toname, &st2, itemizing, code);
 			file->F_HLINDEX = FINISHED_LINK;
@@ -216,7 +244,7 @@ int hard_link_one(struct file_struct *file, int ndx, char *fname,
 		} else
 			code = FERROR;
 		rsyserr(code, errno, "link %s => %s failed",
-			full_fname(fname), safe_fname(toname));
+			full_fname(fname), toname);
 		return -1;
 	}
 
@@ -225,10 +253,8 @@ int hard_link_one(struct file_struct *file, int ndx, char *fname,
 			ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS, 0,
 			terse ? "" : toname);
 	}
-	if (code && verbose && !terse) {
-		rprintf(code, "%s => %s\n",
-			safe_fname(fname), safe_fname(toname));
-	}
+	if (code && verbose && !terse)
+		rprintf(code, "%s => %s\n", fname, toname);
 	return 0;
 }
 #endif
@@ -244,7 +270,7 @@ void hard_link_cluster(struct file_struct *file, int master, int itemizing,
 	int statret, ndx = master;
 
 	file->F_HLINDEX = FINISHED_LINK;
-	if (link_stat(f_name_to(file, hlink1), &st1, 0) < 0)
+	if (link_stat(f_name(file, hlink1), &st1, 0) < 0)
 		return;
 	if (!(file->flags & FLAG_HLINK_TOL)) {
 		while (!(file->flags & FLAG_HLINK_EOL)) {
@@ -257,7 +283,7 @@ void hard_link_cluster(struct file_struct *file, int master, int itemizing,
 		file = FPTR(ndx);
 		if (file->F_HLINDEX != SKIPPED_LINK)
 			continue;
-		hlink2 = f_name(file);
+		hlink2 = f_name(file, NULL);
 		statret = link_stat(hlink2, &st2, 0);
 		maybe_hard_link(file, ndx, hlink2, statret, &st2,
 				hlink1, &st1, itemizing, code);