X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/7d6879328a26775fd680fc8291246c69e1c1c43c..64c3523a6f1f5d6c83571f5f7e921129af42d177:/flist.c

diff --git a/flist.c b/flist.c
index f6ae2240..efb9d440 100644
--- a/flist.c
+++ b/flist.c
@@ -57,8 +57,7 @@ extern int relative_paths;
 extern int implied_dirs;
 extern int copy_links;
 extern int copy_unsafe_links;
-extern int remote_version;
-extern int io_error;
+extern int protocol_version;
 extern int sanitize_paths;
 
 extern int read_batch;
@@ -68,6 +67,8 @@ extern struct exclude_struct **exclude_list;
 extern struct exclude_struct **server_exclude_list;
 extern struct exclude_struct **local_exclude_list;
 
+int io_error;
+
 static struct file_struct null_file;
 
 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
@@ -123,10 +124,10 @@ static struct string_area *string_area_new(int size)
 
 	if (size <= 0)
 		size = ARENA_SIZE;
-	a = malloc(sizeof(*a));
+	a = new(struct string_area);
 	if (!a)
 		out_of_memory("string_area_new");
-	a->current = a->base = malloc(size);
+	a->current = a->base = new_array(char, size);
 	if (!a->current)
 		out_of_memory("string_area_new buffer");
 	a->end = a->base + size;
@@ -262,19 +263,26 @@ static int check_exclude_file(char *fname, int is_dir, int exclude_level)
 	if (exclude_level == NO_EXCLUDES)
 		return 0;
 #endif
-	if (fname && fname[0] == '.' && !fname[1]) {
+	if (fname) {
 		/* never exclude '.', even if somebody does --exclude '*' */
-		return 0;
+		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 (server_exclude_list &&
-	    check_exclude(server_exclude_list, fname, is_dir))
+	if (server_exclude_list
+	 && check_exclude(server_exclude_list, fname, is_dir))
 		return 1;
 	if (exclude_level != ALL_EXCLUDES)
 		return 0;
 	if (exclude_list && check_exclude(exclude_list, fname, is_dir))
 		return 1;
-	if (local_exclude_list &&
-	    check_exclude(local_exclude_list, fname, is_dir))
+	if (local_exclude_list
+	 && check_exclude(local_exclude_list, fname, is_dir))
 		return 1;
 	return 0;
 }
@@ -320,7 +328,6 @@ static char *flist_dir;
 static void flist_expand(struct file_list *flist)
 {
 	if (flist->count >= flist->malloced) {
-		size_t new_bytes;
 		void *new_ptr;
 
 		if (flist->malloced < 1000)
@@ -328,16 +335,19 @@ static void flist_expand(struct file_list *flist)
 		else
 			flist->malloced *= 2;
 
-		new_bytes = sizeof(flist->files[0]) * flist->malloced;
-
-		if (flist->files)
-			new_ptr = realloc(flist->files, new_bytes);
-		else
-			new_ptr = malloc(new_bytes);
+		if (flist->files) {
+			new_ptr = realloc_array(flist->files,
+						struct file_struct *,
+						flist->malloced);
+		} else {
+			new_ptr = new_array(struct file_struct *,
+					    flist->malloced);
+		}
 
 		if (verbose >= 2) {
 			rprintf(FINFO, "expand file_list to %.0f bytes, did%s move\n",
-				(double) new_bytes,
+				(double)sizeof(flist->files[0])
+				* flist->malloced,
 				(new_ptr == flist->files) ? " not" : "");
 		}
 
@@ -439,7 +449,7 @@ static void send_file_entry(struct file_struct *file, int f,
 
 #if SUPPORT_HARD_LINKS
 	if (preserve_hard_links && S_ISREG(file->mode)) {
-		if (remote_version < 26) {
+		if (protocol_version < 26) {
 			/* 32-bit dev_t and ino_t */
 			write_int(f, (int) file->dev);
 			write_int(f, (int) file->inode);
@@ -452,7 +462,7 @@ static void send_file_entry(struct file_struct *file, int f,
 #endif
 
 	if (always_checksum) {
-		if (remote_version < 21) {
+		if (protocol_version < 21) {
 			write_buf(f, file->sum, 2);
 		} else {
 			write_buf(f, file->sum, MD4_SUM_LENGTH);
@@ -495,7 +505,7 @@ static void receive_file_entry(struct file_struct **fptr,
 	else
 		l2 = read_byte(f);
 
-	file = (struct file_struct *) malloc(sizeof(*file));
+	file = new(struct file_struct);
 	if (!file)
 		out_of_memory("receive_file_entry");
 	memset((char *) file, 0, sizeof(*file));
@@ -562,7 +572,7 @@ static void receive_file_entry(struct file_struct **fptr,
 			rprintf(FERROR, "overflow: l=%d\n", l);
 			overflow("receive_file_entry");
 		}
-		file->link = (char *) malloc(l + 1);
+		file->link = new_array(char, l + 1);
 		if (!file->link)
 			out_of_memory("receive_file_entry 2");
 		read_sbuf(f, file->link, l);
@@ -572,7 +582,7 @@ static void receive_file_entry(struct file_struct **fptr,
 	}
 #if SUPPORT_HARD_LINKS
 	if (preserve_hard_links && S_ISREG(file->mode)) {
-		if (remote_version < 26) {
+		if (protocol_version < 26) {
 			file->dev = read_int(f);
 			file->inode = read_int(f);
 		} else {
@@ -583,10 +593,10 @@ static void receive_file_entry(struct file_struct **fptr,
 #endif
 
 	if (always_checksum) {
-		file->sum = (char *) malloc(MD4_SUM_LENGTH);
+		file->sum = new_array(char, MD4_SUM_LENGTH);
 		if (!file->sum)
 			out_of_memory("md4 sum");
-		if (remote_version < 21) {
+		if (protocol_version < 21) {
 			read_buf(f, file->sum, 2);
 		} else {
 			read_buf(f, file->sum, MD4_SUM_LENGTH);
@@ -685,9 +695,9 @@ struct file_struct *make_file(char *fname, struct string_area **ap,
 				return NULL;
 			}
 		}
-		io_error = 1;
-		rprintf(FERROR, "readlink %s: %s\n",
-			fname, strerror(save_errno));
+		io_error |= IOERR_GENERAL;
+		rprintf(FERROR, "readlink %s failed: %s\n",
+			full_fname(fname), strerror(save_errno));
 		return NULL;
 	}
 
@@ -716,7 +726,7 @@ struct file_struct *make_file(char *fname, struct string_area **ap,
 	if (verbose > 2)
 		rprintf(FINFO, "make_file(%s,*,%d)\n", fname, exclude_level);
 
-	file = (struct file_struct *) malloc(sizeof(*file));
+	file = new(struct file_struct);
 	if (!file)
 		out_of_memory("make_file");
 	memset((char *) file, 0, sizeof(*file));
@@ -806,7 +816,7 @@ void send_file_name(int f, struct file_list *flist, char *fname,
 
 	flist_expand(flist);
 
-	if (write_batch)	/*  dw  */
+	if (write_batch)
 		file->flags = FLAG_DELETE;
 
 	if (file->basename[0]) {
@@ -835,8 +845,9 @@ static void send_directory(int f, struct file_list *flist, char *dir)
 
 	d = opendir(dir);
 	if (!d) {
-		io_error = 1;
-		rprintf(FERROR, "opendir(%s): %s\n", dir, strerror(errno));
+		io_error |= IOERR_GENERAL;
+		rprintf(FERROR, "opendir %s failed: %s\n",
+			full_fname(dir), strerror(errno));
 		return;
 	}
 
@@ -844,10 +855,9 @@ static void send_directory(int f, struct file_list *flist, char *dir)
 	l = strlen(fname);
 	if (fname[l - 1] != '/') {
 		if (l == MAXPATHLEN - 1) {
-			io_error = 1;
-			rprintf(FERROR,
-				"skipping long-named directory %s\n",
-				fname);
+			io_error |= IOERR_GENERAL;
+			rprintf(FERROR, "skipping long-named directory: %s\n",
+				full_fname(fname));
 			closedir(d);
 			return;
 		}
@@ -863,21 +873,26 @@ static void send_directory(int f, struct file_list *flist, char *dir)
 			strcpy(p, ".cvsignore");
 			add_exclude_file(&exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
 		} else {
-			io_error = 1;
+			io_error |= IOERR_GENERAL;
 			rprintf(FINFO,
 				"cannot cvs-exclude in long-named directory %s\n",
-				fname);
+				full_fname(fname));
 		}
 	}
 
-	for (di = readdir(d); di; di = readdir(d)) {
+	for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
 		char *dname = d_name(di);
-		if (dname[0] == '.' && (dname[1] == '\0' ||
-		    (dname[1] == '.' && dname[2] == '\0')))
+		if (dname[0] == '.' && (dname[1] == '\0'
+		    || (dname[1] == '.' && dname[2] == '\0')))
 			continue;
 		strlcpy(p, dname, MAXPATHLEN - l);
 		send_file_name(f, flist, fname, recurse, 0);
 	}
+	if (errno) {
+		io_error |= IOERR_GENERAL;
+		rprintf(FERROR, "readdir(%s): (%d) %s\n",
+		    dir, errno, strerror(errno));
+	}
 
 	if (local_exclude_list)
 		free_exclude_list(&local_exclude_list); /* Zeros pointer too */
@@ -913,8 +928,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		io_start_buffering(f);
 		if (filesfrom_fd >= 0) {
 			if (argv[0] && !push_dir(argv[0], 0)) {
-				rprintf(FERROR, "push_dir %s : %s\n",
-					argv[0], strerror(errno));
+				rprintf(FERROR, "push_dir %s failed: %s\n",
+					full_fname(argv[0]), strerror(errno));
 				exit_cleanup(RERR_FILESELECT);
 			}
 			use_ff_fd = 1;
@@ -938,14 +953,10 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		}
 
 		l = strlen(fname);
-		if (l != 1 && fname[l - 1] == '/') {
-			if ((l == 2) && (fname[0] == '.')) {
-				/*  Turn ./ into just . rather than ./.
-				   This was put in to avoid a problem with
-				   rsync -aR --delete from ./
-				   The send_file_name() below of ./ was
-				   mysteriously preventing deletes */
-				fname[1] = 0;
+		if (fname[l - 1] == '/') {
+			if (l == 2 && fname[0] == '.') {
+				/* Turn "./" into just "." rather than "./." */
+				fname[1] = '\0';
 			} else {
 				strlcat(fname, ".", MAXPATHLEN);
 			}
@@ -953,9 +964,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 
 		if (link_stat(fname, &st) != 0) {
 			if (f != -1) {
-				io_error = 1;
-				rprintf(FERROR, "link_stat %s : %s\n",
-					fname, strerror(errno));
+				io_error |= IOERR_GENERAL;
+				rprintf(FERROR, "link_stat %s failed: %s\n",
+					full_fname(fname), strerror(errno));
 			}
 			continue;
 		}
@@ -1020,9 +1031,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 			olddir = push_dir(dir, 1);
 
 			if (!olddir) {
-				io_error = 1;
-				rprintf(FERROR, "push_dir %s : %s\n",
-					dir, strerror(errno));
+				io_error |= IOERR_GENERAL;
+				rprintf(FERROR, "push_dir %s failed: %s\n",
+					full_fname(dir), strerror(errno));
 				continue;
 			}
 
@@ -1037,8 +1048,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		if (olddir != NULL) {
 			flist_dir = NULL;
 			if (pop_dir(olddir) != 0) {
-				rprintf(FERROR, "pop_dir %s : %s\n",
-					dir, strerror(errno));
+				rprintf(FERROR, "pop_dir %s failed: %s\n",
+					full_fname(dir), strerror(errno));
 				exit_cleanup(RERR_FILESELECT);
 			}
 		}
@@ -1070,7 +1081,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		io_end_buffering();
 		stats.flist_size = stats.total_written - start_write;
 		stats.num_files = flist->count;
-		if (write_batch)	/*  dw  */
+		if (write_batch)
 			write_batch_flist_info(flist->count, flist->files);
 	}
 
@@ -1093,15 +1104,13 @@ struct file_list *recv_file_list(int f)
 
 	start_read = stats.total_read;
 
-	flist = (struct file_list *) malloc(sizeof(flist[0]));
+	flist = new(struct file_list);
 	if (!flist)
 		goto oom;
 
 	flist->count = 0;
 	flist->malloced = 1000;
-	flist->files =
-	    (struct file_struct **) malloc(sizeof(flist->files[0]) *
-					   flist->malloced);
+	flist->files = new_array(struct file_struct *, flist->malloced);
 	if (!flist->files)
 		goto oom;
 
@@ -1243,7 +1252,7 @@ struct file_list *flist_new(void)
 {
 	struct file_list *flist;
 
-	flist = (struct file_list *) malloc(sizeof(flist[0]));
+	flist = new(struct file_list);
 	if (!flist)
 		out_of_memory("send_file_list");
 
@@ -1290,7 +1299,7 @@ void flist_free(struct file_list *flist)
  */
 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
 {
-	int i;
+	int i, prev_i = 0;
 	char *name, *prev_name = NULL;
 
 	if (!flist || flist->count == 0)
@@ -1301,6 +1310,7 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
 
 	for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
 		if (flist->files[i]->basename) {
+			prev_i = i;
 			prev_name = f_name(flist->files[i]);
 			break;
 		}
@@ -1315,6 +1325,11 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
 					"removing duplicate name %s from file list %d\n",
 					name, i);
 			}
+			/* Make sure that if we unduplicate '.', that we don't
+			 * lose track of a user-specified starting point (or
+			 * else deletions will mysteriously fail with -R). */
+			if (flist->files[i]->flags & FLAG_DELETE)
+				flist->files[prev_i]->flags |= FLAG_DELETE;
 			/* it's not great that the flist knows the semantics of
 			 * the file memory usage, but i'd rather not add a flag
 			 * byte to that struct.
@@ -1324,6 +1339,10 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
 			else
 				free_file(flist->files[i]);
 		}
+		else
+			prev_i = i;
+		/* We set prev_name every iteration to avoid it becoming
+		 * invalid when names[][] in f_name() wraps around. */
 		prev_name = name;
 	}