int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, uchar *type_ptr,
char *buf, int *len_ptr)
{
int len, iflags = 0;
struct file_list *flist;
uchar fnamecmp_type = FNAMECMP_FNAME;
int ndx;
read_loop:
while (1) {
ndx = read_ndx(f_in);
if (ndx >= 0)
break;
if (ndx == NDX_DONE)
return ndx;
if (ndx == NDX_DEL_STATS) {
read_del_stats(f_in);
if (am_sender && am_server)
write_del_stats(f_out);
continue;
}
if (!inc_recurse || am_sender) {
int last;
if (first_flist)
last = first_flist->prev->ndx_start + first_flist->prev->used - 1;
else
last = -1;
rprintf(FERROR,
"Invalid file index: %d (%d - %d) [%s]\n",
ndx, NDX_DONE, last, who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
if (ndx == NDX_FLIST_EOF) {
flist_eof = 1;
if (DEBUG_GTE(FLIST, 3))
rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
write_int(f_out, NDX_FLIST_EOF);
continue;
}
ndx = NDX_FLIST_OFFSET - ndx;
if (ndx < 0 || ndx >= dir_flist->used) {
ndx = NDX_FLIST_OFFSET - ndx;
rprintf(FERROR,
"Invalid dir index: %d (%d - %d) [%s]\n",
ndx, NDX_FLIST_OFFSET,
NDX_FLIST_OFFSET - dir_flist->used + 1,
who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
if (DEBUG_GTE(FLIST, 2)) {
rprintf(FINFO, "[%s] receiving flist for dir %d\n",
who_am_i(), ndx);
}
/* Send all the data we read for this flist to the generator. */
start_flist_forward(ndx);
flist = recv_file_list(f_in);
flist->parent_ndx = ndx;
stop_flist_forward();
}
iflags = protocol_version >= 29 ? read_shortint(f_in)
: ITEM_TRANSFER | ITEM_MISSING_DATA;
/* Support the protocol-29 keep-alive style. */
if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) {
if (am_sender)
maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH);
goto read_loop;
}
flist = flist_for_ndx(ndx, "read_ndx_and_attrs");
if (flist != cur_flist) {
cur_flist = flist;
if (am_sender) {
file_old_total = cur_flist->used;
for (flist = first_flist; flist != cur_flist; flist = flist->next)
file_old_total += flist->used;
}
}
if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
fnamecmp_type = read_byte(f_in);
*type_ptr = fnamecmp_type;
if (iflags & ITEM_XNAME_FOLLOWS) {
if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
exit_cleanup(RERR_PROTOCOL);
} else {
*buf = '\0';
len = -1;
}
*len_ptr = len;
if (iflags & ITEM_TRANSFER) {
int i = ndx - cur_flist->ndx_start;
if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) {
rprintf(FERROR,
"received request to transfer non-regular file: %d [%s]\n",
ndx, who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
}
*iflag_ptr = iflags;
return ndx;
}
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;
uchar fnamecmp_type = FNAMECMP_FNAME;
int ndx, save_verbose = verbose;
read_loop:
while (1) {
ndx = read_ndx(f_in);
if (ndx >= 0)
break;
if (ndx == NDX_DONE)
return ndx;
if (!inc_recurse || am_sender) {
int last;
if (first_flist)
last = first_flist->prev->ndx_start + first_flist->prev->used - 1;
else
last = -1;
rprintf(FERROR,
"Invalid file index: %d (%d - %d) [%s]\n",
ndx, NDX_DONE, last, who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
if (ndx == NDX_FLIST_EOF) {
flist_eof = 1;
send_msg(MSG_FLIST_EOF, "", 0, 0);
continue;
}
ndx = NDX_FLIST_OFFSET - ndx;
if (ndx < 0 || ndx >= dir_flist->used) {
ndx = NDX_FLIST_OFFSET - ndx;
rprintf(FERROR,
"Invalid dir index: %d (%d - %d) [%s]\n",
ndx, NDX_FLIST_OFFSET,
NDX_FLIST_OFFSET - dir_flist->used + 1,
who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
/* Send everything read from f_in to msg_fd_out. */
if (verbose > 3) {
rprintf(FINFO, "[%s] receiving flist for dir %d\n",
who_am_i(), ndx);
}
verbose = 0;
send_msg_int(MSG_FLIST, ndx);
start_flist_forward(f_in);
flist = recv_file_list(f_in);
flist->parent_ndx = ndx;
stop_flist_forward();
verbose = save_verbose;
}
iflags = protocol_version >= 29 ? read_shortint(f_in)
: ITEM_TRANSFER | ITEM_MISSING_DATA;
/* Support the protocol-29 keep-alive style. */
if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) {
if (am_sender)
maybe_send_keepalive();
goto read_loop;
}
cur_flist = flist_for_ndx(ndx, "read_ndx_and_attrs");
if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
fnamecmp_type = read_byte(f_in);
*type_ptr = fnamecmp_type;
if (iflags & ITEM_XNAME_FOLLOWS) {
if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
exit_cleanup(RERR_PROTOCOL);
} else {
*buf = '\0';
len = -1;
}
*len_ptr = len;
if (iflags & ITEM_TRANSFER) {
int i = ndx - cur_flist->ndx_start;
struct file_struct *file = cur_flist->files[i];
if (i < 0 || !(S_ISREG(file->mode) || (copy_devices && IS_DEVICE(file->mode)))) {
rprintf(FERROR,
"received request to transfer non-regular file: %d [%s]\n",
ndx, who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
}
*iflag_ptr = iflags;
return ndx;
}