+extern int allowed_lull;
+extern int am_server;
+extern int am_daemon;
+extern int am_sender;
+extern int am_generator;
+extern int inc_recurse;
+extern int io_error;
+extern int eol_nulls;
+extern int flist_eof;
+extern int list_only;
+extern int read_batch;
+extern int csum_length;
+extern int protect_args;
+extern int checksum_seed;
+extern int protocol_version;
+extern int remove_source_files;
+extern int preserve_hard_links;
+extern struct stats stats;
+extern struct file_list *cur_flist;
+#ifdef ICONV_OPTION
+extern int filesfrom_convert;
+extern iconv_t ic_send, ic_recv;
+#endif
+
+const char phase_unknown[] = "unknown";
+int ignore_timeout = 0;
+int batch_fd = -1;
+int msgdone_cnt = 0;
+
+/* Ignore an EOF error if non-zero. See whine_about_eof(). */
+int kluge_around_eof = 0;
+
+int msg_fd_in = -1;
+int msg_fd_out = -1;
+int sock_f_in = -1;
+int sock_f_out = -1;
+
+static int iobuf_f_in = -1;
+static char *iobuf_in;
+static size_t iobuf_in_siz;
+static size_t iobuf_in_ndx;
+static size_t iobuf_in_remaining;
+
+static int iobuf_f_out = -1;
+static char *iobuf_out;
+static int iobuf_out_cnt;
+
+int flist_forward_from = -1;
+
+static int io_multiplexing_out;
+static int io_multiplexing_in;
+static time_t last_io_in;
+static time_t last_io_out;
+static int no_flush;
+
+static int write_batch_monitor_in = -1;
+static int write_batch_monitor_out = -1;
+
+static int io_filesfrom_f_in = -1;
+static int io_filesfrom_f_out = -1;
+static xbuf ff_buf = EMPTY_XBUF;
+static char ff_lastchar;
+#ifdef ICONV_OPTION
+static xbuf iconv_buf = EMPTY_XBUF;
+#endif
+static int defer_forwarding_messages = 0, defer_forwarding_keep = 0;
+static int select_timeout = SELECT_TIMEOUT;
+static int active_filecnt = 0;
+static OFF_T active_bytecnt = 0;
+static int first_message = 1;
+
+static char int_byte_extra[64] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* (00 - 3F)/4 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* (40 - 7F)/4 */
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* (80 - BF)/4 */
+ 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 6, /* (C0 - FF)/4 */
+};
+
+#define REMOTE_OPTION_ERROR "rsync: on remote machine: -"
+#define REMOTE_OPTION_ERROR2 ": unknown option"
+
+enum festatus { FES_SUCCESS, FES_REDO, FES_NO_SEND };
+
+static void readfd(int fd, char *buffer, size_t N);
+static void writefd(int fd, const char *buf, size_t len);
+static void writefd_unbuffered(int fd, const char *buf, size_t len);
+static void mplex_write(int fd, enum msgcode code, const char *buf, size_t len, int convert);
+
+struct flist_ndx_item {
+ struct flist_ndx_item *next;
+ int ndx;
+};
+
+struct flist_ndx_list {
+ struct flist_ndx_item *head, *tail;
+};
+
+static struct flist_ndx_list redo_list, hlink_list;