int remote_protocol = 0;
int file_extra_cnt = 0; /* count of file-list extras that everyone gets */
int inc_recurse = 0;
+int use_safe_inc_flist = 0;
extern int am_server;
extern int am_sender;
#define CF_INC_RECURSE (1<<0)
#define CF_SYMLINK_TIMES (1<<1)
#define CF_SYMLINK_ICONV (1<<2)
+#define CF_SAFE_FLIST (1<<3)
static const char *client_info;
#ifdef ICONV_OPTION
compat_flags |= CF_SYMLINK_ICONV;
#endif
+ if (local_server || strchr(client_info, 'f') != NULL)
+ compat_flags |= CF_SAFE_FLIST;
write_byte(f_out, compat_flags);
- } else {
+ } else
compat_flags = read_byte(f_in);
- }
/* The inc_recurse var MUST be set to 0 or 1. */
inc_recurse = compat_flags & CF_INC_RECURSE ? 1 : 0;
if (am_sender) {
read_batch ? "batch file" : "connection");
exit_cleanup(RERR_SYNTAX);
}
+ use_safe_inc_flist = (compat_flags & CF_SAFE_FLIST) || protocol_version >= 31;
need_messages_from_generator = 1;
#ifdef CAN_SET_SYMLINK_TIMES
} else if (!am_sender) {
extern int preserve_hard_links;
extern int preserve_devices;
extern int preserve_specials;
+extern int delete_during;
extern int missing_args;
extern int uid_ndx;
extern int gid_ndx;
extern int protocol_version;
extern int sanitize_paths;
extern int munge_symlinks;
+extern int use_safe_inc_flist;
extern int need_unsorted_flist;
extern int sender_symlink_iconv;
extern int output_needs_newline;
filter_list = save_filter_list;
}
+static NORETURN void fatal_unsafe_io_error(void)
+{
+ /* This (sadly) can only happen when pushing data because
+ * the sender does not know about what kind of delete
+ * is in effect on the receiving side when pulling. */
+ rprintf(FERROR_XFER, "FATAL I/O ERROR: dying to avoid a --delete-during issue with a pre-3.0.7 receiver.\n");
+ exit_cleanup(RERR_UNSUPPORTED);
+}
+
static void send1extra(int f, struct file_struct *file, struct file_list *flist)
{
char fbuf[MAXPATHLEN];
dp = F_DIR_NODE_P(file);
}
- if (protocol_version < 31 || io_error == save_io_error || ignore_errors)
+ if (io_error == save_io_error || ignore_errors)
write_byte(f, 0);
- else {
+ else if (use_safe_inc_flist) {
write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
write_varint(f, io_error);
+ } else {
+ if (delete_during)
+ fatal_unsafe_io_error();
+ write_byte(f, 0);
}
if (need_unsorted_flist) {
start_tv = end_tv;
/* Indicate end of file list */
- if (protocol_version < 31 || io_error == 0 || ignore_errors)
+ if (io_error == 0 || ignore_errors)
write_byte(f, 0);
- else {
+ else if (use_safe_inc_flist) {
write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
write_varint(f, io_error);
+ } else {
+ if (delete_during && inc_recurse)
+ fatal_unsafe_io_error();
+ write_byte(f, 0);
}
#ifdef SUPPORT_HARD_LINKS
/* send the io_error flag */
if (protocol_version < 30)
write_int(f, ignore_errors ? 0 : io_error);
- else if (io_error && protocol_version == 30 && !ignore_errors)
+ else if (!use_safe_inc_flist && io_error && !ignore_errors)
send_msg_int(MSG_IO_ERROR, io_error);
if (disable_buffering)
if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
int err;
- if (protocol_version < 31) {
+ if (!use_safe_inc_flist) {
rprintf(FERROR, "Invalid flist flag: %x\n", flags);
exit_cleanup(RERR_PROTOCOL);
}