X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/9ae7a2cddbb19d14e1b4453cfd40d840ea3042d2..16edf86595a5a990a942fa045dfb523dae1fe6cb:/rsync.c

diff --git a/rsync.c b/rsync.c
index 9849180f..7e97a930 100644
--- a/rsync.c
+++ b/rsync.c
@@ -3,12 +3,11 @@
  *
  * Copyright (C) 1996 Andrew Tridgell
  * Copyright (C) 1996 Paul Mackerras
- * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
+ * Copyright (C) 2003-2007 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.
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -32,6 +31,8 @@
 
 extern int verbose;
 extern int dry_run;
+extern int preserve_acls;
+extern int preserve_xattrs;
 extern int preserve_perms;
 extern int preserve_executability;
 extern int preserve_times;
@@ -45,13 +46,11 @@ extern int allow_8bit_chars;
 extern int protocol_version;
 extern int preserve_uid;
 extern int preserve_gid;
-extern int incremental;
+extern int inc_recurse;
 extern int inplace;
 extern int flist_eof;
 extern int keep_dirlinks;
 extern int make_backups;
-extern mode_t orig_umask;
-extern struct stats stats;
 extern struct file_list *cur_flist, *first_flist, *dir_flist;
 extern struct chmod_mode_struct *daemon_chmod_modes;
 
@@ -93,10 +92,8 @@ void setup_iconv()
 }
 #endif
 
-/* This is used by sender.c with a valid f_out, and by receive.c with
- * f_out = -1. */
-int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr,
-		       uchar *type_ptr, char *buf, int *len_ptr)
+int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr,
+		       char *buf, int *len_ptr)
 {
 	int len, iflags = 0;
 	struct file_list *flist;
@@ -111,7 +108,7 @@ int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr,
 			break;
 		if (ndx == NDX_DONE)
 			return ndx;
-		if (!incremental || am_sender)
+		if (!inc_recurse || am_sender)
 			goto invalid_ndx;
 		if (ndx == NDX_FLIST_EOF) {
 			flist_eof = 1;
@@ -183,9 +180,6 @@ int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr,
 				ndx, who_am_i());
 			exit_cleanup(RERR_PROTOCOL);
 		}
-	} else if (f_out >= 0) {
-		write_ndx_and_attrs(f_out, ndx, iflags,
-				    fnamecmp_type, buf, len);
 	}
 
 	*iflag_ptr = iflags;
@@ -203,7 +197,8 @@ void free_sums(struct sum_struct *s)
 
 /* This is only called when we aren't preserving permissions.  Figure out what
  * the permissions should be and return them merged back into the mode. */
-mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int exists)
+mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms,
+		 int exists)
 {
 	int new_mode;
 	/* If the file already exists, we'll return the local permissions,
@@ -220,56 +215,73 @@ mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int exists)
 				new_mode |= (new_mode & 0444) >> 2;
 		}
 	} else {
-		/* Apply the umask and turn off special permissions. */
-		new_mode = flist_mode & (~CHMOD_BITS | (ACCESSPERMS & ~orig_umask));
+		/* Apply destination default permissions and turn
+		 * off special permissions. */
+		new_mode = flist_mode & (~CHMOD_BITS | dflt_perms);
 	}
 	return new_mode;
 }
 
-int set_file_attrs(char *fname, struct file_struct *file, STRUCT_STAT *st,
-		   int flags)
+int set_file_attrs(const char *fname, struct file_struct *file, statx *sxp,
+		   const char *fnamecmp, int flags)
 {
 	int updated = 0;
-	STRUCT_STAT st2;
+	statx sx2;
 	int change_uid, change_gid;
 	mode_t new_mode = file->mode;
 
-	if (!st) {
+	if (!sxp) {
 		if (dry_run)
 			return 1;
-		if (link_stat(fname, &st2, 0) < 0) {
+		if (link_stat(fname, &sx2.st, 0) < 0) {
 			rsyserr(FERROR, errno, "stat %s failed",
 				full_fname(fname));
 			return 0;
 		}
-		st = &st2;
+#ifdef SUPPORT_ACLS
+		sx2.acc_acl = sx2.def_acl = NULL;
+#endif
+#ifdef SUPPORT_XATTRS
+		sx2.xattr = NULL;
+#endif
 		if (!preserve_perms && S_ISDIR(new_mode)
-		 && st->st_mode & S_ISGID) {
+		 && sx2.st.st_mode & S_ISGID) {
 			/* We just created this directory and its setgid
 			 * bit is on, so make sure it stays on. */
 			new_mode |= S_ISGID;
 		}
+		sxp = &sx2;
 	}
 
-	if (!preserve_times || (S_ISDIR(st->st_mode) && omit_dir_times))
+#ifdef SUPPORT_ACLS
+	if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp))
+		get_acl(fname, sxp);
+#endif
+
+#ifdef SUPPORT_XATTRS
+	if (preserve_xattrs && fnamecmp)
+		set_xattr(fname, file, fnamecmp, sxp);
+#endif
+
+	if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && omit_dir_times))
 		flags |= ATTRS_SKIP_MTIME;
 	if (!(flags & ATTRS_SKIP_MTIME)
-	    && cmp_time(st->st_mtime, file->modtime) != 0) {
-		int ret = set_modtime(fname, file->modtime, st->st_mode);
+	    && cmp_time(sxp->st.st_mtime, file->modtime) != 0) {
+		int ret = set_modtime(fname, file->modtime, sxp->st.st_mode);
 		if (ret < 0) {
 			rsyserr(FERROR, errno, "failed to set times on %s",
 				full_fname(fname));
-			return 0;
+			goto cleanup;
 		}
 		if (ret == 0) /* ret == 1 if symlink could not be set */
 			updated = 1;
 	}
 
-	change_uid = am_root && preserve_uid && st->st_uid != F_UID(file);
+	change_uid = am_root && preserve_uid && sxp->st.st_uid != F_UID(file);
 	change_gid = preserve_gid && F_GID(file) != GID_NONE
-		&& st->st_gid != F_GID(file);
+		&& sxp->st.st_gid != F_GID(file);
 #if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK
-	if (S_ISLNK(st->st_mode))
+	if (S_ISLNK(sxp->st.st_mode))
 		;
 	else
 #endif
@@ -279,45 +291,57 @@ int set_file_attrs(char *fname, struct file_struct *file, STRUCT_STAT *st,
 				rprintf(FINFO,
 					"set uid of %s from %ld to %ld\n",
 					fname,
-					(long)st->st_uid, (long)F_UID(file));
+					(long)sxp->st.st_uid, (long)F_UID(file));
 			}
 			if (change_gid) {
 				rprintf(FINFO,
 					"set gid of %s from %ld to %ld\n",
 					fname,
-					(long)st->st_gid, (long)F_GID(file));
+					(long)sxp->st.st_gid, (long)F_GID(file));
 			}
 		}
 		if (do_lchown(fname,
-		    change_uid ? F_UID(file) : st->st_uid,
-		    change_gid ? F_GID(file) : st->st_gid) != 0) {
+		    change_uid ? F_UID(file) : sxp->st.st_uid,
+		    change_gid ? F_GID(file) : sxp->st.st_gid) != 0) {
 			/* shouldn't have attempted to change uid or gid
 			 * unless have the privilege */
 			rsyserr(FERROR, errno, "%s %s failed",
 			    change_uid ? "chown" : "chgrp",
 			    full_fname(fname));
-			return 0;
+			goto cleanup;
 		}
 		/* a lchown had been done - we have to re-stat if the
 		 * destination had the setuid or setgid bits set due
 		 * to the side effect of the chown call */
-		if (st->st_mode & (S_ISUID | S_ISGID)) {
-			link_stat(fname, st,
-				  keep_dirlinks && S_ISDIR(st->st_mode));
+		if (sxp->st.st_mode & (S_ISUID | S_ISGID)) {
+			link_stat(fname, &sxp->st,
+				  keep_dirlinks && S_ISDIR(sxp->st.st_mode));
 		}
 		updated = 1;
 	}
 
 	if (daemon_chmod_modes && !S_ISLNK(new_mode))
 		new_mode = tweak_mode(new_mode, daemon_chmod_modes);
+
+#ifdef SUPPORT_ACLS
+	/* It's OK to call set_acl() now, even for a dir, as the generator
+	 * will enable owner-writability using chmod, if necessary.
+	 * 
+	 * If set_acl() changes permission bits in the process of setting
+	 * an access ACL, it changes sxp->st.st_mode so we know whether we
+	 * need to chmod(). */
+	if (preserve_acls && !S_ISLNK(new_mode) && set_acl(fname, file, sxp) == 0)
+		updated = 1;
+#endif
+
 #ifdef HAVE_CHMOD
-	if (!BITS_EQUAL(st->st_mode, new_mode, CHMOD_BITS)) {
+	if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) {
 		int ret = do_chmod(fname, new_mode);
 		if (ret < 0) {
 			rsyserr(FERROR, errno,
 				"failed to set permissions on %s",
 				full_fname(fname));
-			return 0;
+			goto cleanup;
 		}
 		if (ret == 0) /* ret == 1 if symlink could not be set */
 			updated = 1;
@@ -330,6 +354,17 @@ int set_file_attrs(char *fname, struct file_struct *file, STRUCT_STAT *st,
 		else
 			rprintf(FCLIENT, "%s is uptodate\n", fname);
 	}
+  cleanup:
+	if (sxp == &sx2) {
+#ifdef SUPPORT_ACLS
+		if (preserve_acls)
+			free_acl(&sx2);
+#endif
+#ifdef SUPPORT_XATTRS
+		if (preserve_xattrs)
+			free_xattr(&sx2);
+#endif
+	}
 	return updated;
 }
 
@@ -351,7 +386,8 @@ RETSIGTYPE sig_int(UNUSED(int val))
  * attributes (e.g. permissions, ownership, etc.).  If partialptr is not
  * NULL and the robust_rename() call is forced to copy the temp file, we
  * stage the file into the partial-dir and then rename it into place. */
-void finish_transfer(char *fname, char *fnametmp, char *partialptr,
+void finish_transfer(const char *fname, const char *fnametmp,
+		     const char *fnamecmp, const char *partialptr,
 		     struct file_struct *file, int ok_to_set_time,
 		     int overwriting_basis)
 {
@@ -368,7 +404,7 @@ void finish_transfer(char *fname, char *fnametmp, char *partialptr,
 		return;
 
 	/* Change permissions before putting the file into place. */
-	set_file_attrs(fnametmp, file, NULL,
+	set_file_attrs(fnametmp, file, NULL, fnamecmp,
 		       ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
 
 	/* move tmp file over real file */
@@ -392,7 +428,7 @@ void finish_transfer(char *fname, char *fnametmp, char *partialptr,
 	fnametmp = partialptr ? partialptr : fname;
 
   do_set_file_attrs:
-	set_file_attrs(fnametmp, file, NULL,
+	set_file_attrs(fnametmp, file, NULL, fnamecmp,
 		       ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
 
 	if (partialptr) {
@@ -408,7 +444,7 @@ struct file_list *flist_for_ndx(int ndx)
 {
 	struct file_list *flist = cur_flist;
 
-	if (!flist)
+	if (!flist && !(flist = first_flist))
 		return NULL;
 
 	while (ndx < flist->ndx_start) {