X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/fd2598022cc10ce4f28019f5c0cb1816cd9311a4..5b83829669d9c7e276aeaf8027e112f0aa08dd29:/flist.c

diff --git a/flist.c b/flist.c
index eca0dc7b..b0b05dc9 100644
--- a/flist.c
+++ b/flist.c
@@ -97,7 +97,7 @@ int flist_eof = 0; /* all the file-lists are now known */
 
 #define NORMAL_NAME 0
 #define SLASH_ENDING_NAME 1
-#define DOT_NAME 2
+#define DOTDIR_NAME 2
 
 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
  * internally, even if this platform does not allow files to have 64-bit inums.
@@ -244,7 +244,7 @@ static inline int is_daemon_excluded(const char *fname, int is_dir)
 
 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
 {
-	if (daemon_filter_list.head && path) {
+	if (daemon_filter_list.head) {
 		char *slash = path;
 
 		while ((slash = strchr(slash+1, '/')) != NULL) {
@@ -277,17 +277,6 @@ static int is_excluded(const char *fname, int is_dir, int filter_level)
 	if (filter_level == NO_FILTERS)
 		return 0;
 #endif
-	if (fname) {
-		/* never exclude '.', even if somebody does --exclude '*' */
-		if (fname[0] == '.' && !fname[1])
-			return 0;
-		/* Handle the -R version of the '.' dir. */
-		if (fname[0] == '/') {
-			int len = strlen(fname);
-			if (fname[len-1] == '.' && fname[len-2] == '/')
-				return 0;
-		}
-	}
 	if (is_daemon_excluded(fname, is_dir))
 		return 1;
 	if (filter_level != ALL_FILTERS)
@@ -304,7 +293,6 @@ static void send_directory(int f, struct file_list *flist,
 static const char *pathname, *orig_dir;
 static int pathname_len;
 
-
 /* Make sure flist can hold at least flist->used + extra entries. */
 static void flist_expand(struct file_list *flist, int extra)
 {
@@ -350,30 +338,51 @@ static void flist_done_allocating(struct file_list *flist)
 		flist->pool_boundary = ptr;
 }
 
-int push_pathname(const char *dir, int len)
+/* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
+ * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
+ * with dir == NULL taken to be the starting directory, and dirlen < 0
+ * indicating that strdup(dir) should be called and then the -dirlen length
+ * value checked to ensure that it is not daemon-excluded. */
+int change_pathname(struct file_struct *file, const char *dir, int dirlen)
 {
-	if (dir == pathname)
-		return 1;
+	if (dirlen < 0) {
+		char *cpy = strdup(dir);
+		if (*cpy != '/')
+			change_dir(orig_dir, CD_SKIP_CHDIR);
+		if (path_is_daemon_excluded(cpy, 0))
+			goto chdir_error;
+		dir = cpy;
+		dirlen = -dirlen;
+	} else {
+		if (file) {
+			if (pathname == F_PATHNAME(file))
+				return 1;
+			dir = F_PATHNAME(file);
+			if (dir)
+				dirlen = strlen(dir);
+		} else if (pathname == dir)
+			return 1;
+		if (dir && *dir != '/')
+			change_dir(orig_dir, CD_SKIP_CHDIR);
+	}
 
-	if (!orig_dir)
-		orig_dir = strdup(curr_dir);
+	pathname = dir;
+	pathname_len = dirlen;
 
-	if (pathname && !pop_dir(orig_dir)) {
-		rsyserr(FERROR, errno, "pop_dir %s failed",
-			full_fname(orig_dir));
-		exit_cleanup(RERR_FILESELECT);
-	}
+	if (!dir)
+		dir = orig_dir;
 
-	if (dir && !push_dir(dir, 0)) {
+	if (!change_dir(dir, CD_NORMAL)) {
+	  chdir_error:
 		io_error |= IOERR_GENERAL;
-		rsyserr(FERROR, errno, "push_dir %s failed in %s",
-			full_fname(dir), curr_dir);
+		rsyserr(FERROR, errno, "change_dir %s failed", full_fname(dir));
+		if (dir != orig_dir)
+			change_dir(orig_dir, CD_NORMAL);
+		pathname = NULL;
+		pathname_len = 0;
 		return 0;
 	}
 
-	pathname = dir;
-	pathname_len = len >= 0 ? len : dir ? (int)strlen(dir) : 0;
-
 	return 1;
 }
 
@@ -1014,6 +1023,7 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
 	const char *basename;
 	alloc_pool_t *pool;
 	STRUCT_STAT st;
+	int excl_ret;
 	char *bp;
 
 	if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
@@ -1096,7 +1106,17 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
 	} else
 		flags &= ~FLAG_CONTENT_DIR;
 
-	if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
+	if (S_ISDIR(st.st_mode)) {
+		if (flags & FLAG_DOTDIR_NAME) {
+			/* A "." fname (or "/." fname in relative mode) is
+			 * never excluded.  No other trailing-dotdir names
+			 * are possible. */
+			excl_ret = 0;
+		} else
+			excl_ret = is_excluded(thisname, 1, filter_level);
+	} else
+		excl_ret = is_excluded(thisname, 0, filter_level);
+	if (excl_ret) {
 		if (ignore_perishable)
 			non_perishable_cnt++;
 		return NULL;
@@ -1667,10 +1687,8 @@ static void send1extra(int f, struct file_struct *file, struct file_list *flist)
 	f_name(file, fbuf);
 	dlen = strlen(fbuf);
 
-	if (F_PATHNAME(file) != pathname) {
-		if (!push_pathname(F_PATHNAME(file), -1))
-			exit_cleanup(RERR_FILESELECT);
-	}
+	if (!change_pathname(file, NULL, 0))
+		exit_cleanup(RERR_FILESELECT);
 
 	change_local_filter_dir(fbuf, dlen, send_dir_depth);
 
@@ -1835,7 +1853,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 	int64 start_write;
 	int use_ff_fd = 0;
 	int disable_buffering;
-	int flags = recurse ? FLAG_CONTENT_DIR : 0;
+	int arg_flags, flags = recurse ? FLAG_CONTENT_DIR : 0;
 	int reading_remotely = filesfrom_host != NULL;
 	int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
 #ifdef ICONV_OPTION
@@ -1853,6 +1871,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 	start_write = stats.total_written;
 	gettimeofday(&start_tv, NULL);
 
+	if (!orig_dir)
+		orig_dir = strdup(curr_dir);
+
 	if (relative_paths && protocol_version >= 30)
 		implied_dirs = 1; /* We send flagged implied dirs */
 
@@ -1870,9 +1891,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 
 	disable_buffering = io_start_buffering_out(f);
 	if (filesfrom_fd >= 0) {
-		if (argv[0] && !push_dir(argv[0], 0)) {
-			rsyserr(FERROR_XFER, errno, "push_dir %s failed in %s",
-				full_fname(argv[0]), curr_dir);
+		if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
+			rsyserr(FERROR_XFER, errno, "change_dir %s failed",
+				full_fname(argv[0]));
 			exit_cleanup(RERR_FILESELECT);
 		}
 		use_ff_fd = 1;
@@ -1907,7 +1928,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 				fbuf[len++] = '.';
 				fbuf[len] = '\0';
 			}
-			name_type = DOT_NAME;
+			name_type = DOTDIR_NAME;
 		} else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
 		    && (len == 2 || fbuf[len-3] == '/')) {
 			if (len + 2 >= MAXPATHLEN)
@@ -1915,9 +1936,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 			fbuf[len++] = '/';
 			fbuf[len++] = '.';
 			fbuf[len] = '\0';
-			name_type = DOT_NAME;
+			name_type = DOTDIR_NAME;
 		} else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
-			name_type = DOT_NAME;
+			name_type = DOTDIR_NAME;
 		else
 			name_type = NORMAL_NAME;
 
@@ -1965,13 +1986,13 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 				if (fn[0] == '/') {
 					fn = "/.";
 					len = 2;
-					name_type = DOT_NAME;
+					name_type = DOTDIR_NAME;
 				} else if (fn[0] == '.')
-					name_type = DOT_NAME;
+					name_type = DOTDIR_NAME;
 			} else if (fn[len-1] == '/') {
 				fn[--len] = '\0';
 				if (len == 1 && *fn == '.')
-					name_type = DOT_NAME;
+					name_type = DOTDIR_NAME;
 				else
 					name_type = SLASH_ENDING_NAME;
 			}
@@ -1990,29 +2011,23 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		if (!*fn) {
 			len = 1;
 			fn = ".";
-			name_type = DOT_NAME;
+			name_type = DOTDIR_NAME;
 		}
 
 		dirlen = dir ? strlen(dir) : 0;
 		if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
-			if (path_is_daemon_excluded(dir, 0)) {
-				io_error |= IOERR_GENERAL;
-				rsyserr(FERROR, errno, "push_dir %s failed in %s",
-					full_fname(dir), curr_dir);
-				continue;
-			}
-			if (!push_pathname(dir ? strdup(dir) : NULL, dirlen))
+			if (!change_pathname(NULL, dir, -dirlen))
 				continue;
 			lastdir = pathname;
 			lastdir_len = pathname_len;
-		} else if (!push_pathname(lastdir, lastdir_len))
+		} else if (!change_pathname(NULL, lastdir, lastdir_len))
 			continue;
 
 		if (fn != fbuf)
 			memmove(fbuf, fn, len + 1);
 
 		if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
-		 || is_daemon_excluded(fbuf, S_ISDIR(st.st_mode) != 0)
+		 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
 		 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
 			io_error |= IOERR_GENERAL;
 			rsyserr(FERROR_XFER, errno, "link_stat %s failed",
@@ -2045,15 +2060,17 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		if (one_file_system)
 			filesystem_dev = st.st_dev;
 
+		arg_flags = name_type == DOTDIR_NAME ? FLAG_DOTDIR_NAME : 0;
+
 		if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
 			struct file_struct *file;
-			int top_flags = FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags;
+			arg_flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
 			file = send_file_name(f, flist, fbuf, &st,
-					      top_flags, ALL_FILTERS);
+					      arg_flags | flags, ALL_FILTERS);
 			if (!file)
 				continue;
 			if (inc_recurse) {
-				if (name_type == DOT_NAME) {
+				if (name_type == DOTDIR_NAME) {
 					if (send_dir_depth < 0) {
 						send_dir_depth = 0;
 						change_local_filter_dir(fbuf, len, send_dir_depth);
@@ -2063,7 +2080,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 			} else
 				send_if_directory(f, flist, file, fbuf, len, flags);
 		} else
-			send_file_name(f, flist, fbuf, &st, flags, ALL_FILTERS);
+			send_file_name(f, flist, fbuf, &st, arg_flags | flags, ALL_FILTERS);
 	}
 
 	gettimeofday(&end_tv, NULL);