/* Opens a temporary file for writing.
 * Success: Writes name into fnametmp, returns fd.
 * Failure: Clobbers fnametmp, returns -1.
 * Calling cleanup_set() is the caller's job. */
int open_tmpfile(char *fnametmp, const char *fname, struct file_struct *file)
{
	int fd;

	if (!get_tmpname(fnametmp, fname))
		return -1;

	/* We initially set the perms without the setuid/setgid bits or group
	 * access to ensure that there is no race condition.  They will be
	 * correctly updated after the right owner and group info is set.
	 * (Thanks to [email protected] for pointing this out.) */
	fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);

#if 0
	/* In most cases parent directories will already exist because their
	 * information should have been previously transferred, but that may
	 * not be the case with -R */
	if (fd == -1 && relative_paths && errno == ENOENT
	    && create_directory_path(fnametmp) == 0) {
		/* Get back to name with XXXXXX in it. */
		get_tmpname(fnametmp, fname);
		fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
	}
#endif

	if (fd == -1) {
		rsyserr(FERROR_XFER, errno, "mkstemp %s failed",
			full_fname(fnametmp));
		return -1;
	}

	return fd;
}
示例#2
0
void SFTP::process_mkdir(void)
{
	Attrib a;
	u_int32_t id;
	char *utf8_name;
	int status = SSH2_FX_FAILURE;

	id = get_int();
	utf8_name = (char*) get_string(NULL);
  a = get_attrib(this->iqueue);
	/*mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ?
	    a->perm & 07777 : 0777;*/
  // TODO ACL's (all is created with the system perms)
	debug3("request %u: mkdir", (unsigned) id);
	logit("mkdir name \"%s\" mode default", utf8_name);

  const SFTPFilePath path = pathFact.create_path (utf8_name);
  BOOL res = ::CreateDirectory (path.get_for_call ().c_str (), NULL);
  int err = ::GetLastError ();
  if (err == ERROR_PATH_NOT_FOUND)
  {
    res = create_directory_path (path, NULL);
    if (!res) err = ::GetLastError ();
  }

  status = (!res) 
     ? errno_to_portable(err) 
     : SSH2_FX_OK;

	send_status(id, status);
	xfree(utf8_name);
}
示例#3
0
/* Opens a temporary file for writing.
 * Success: Writes name into fnametmp, returns fd.
 * Failure: Clobbers fnametmp, returns -1.
 * Calling cleanup_set() is the caller's job. */
int open_tmpfile(char *fnametmp, const char *fname, struct file_struct *file)
{
	int fd;
	mode_t added_perms;

	if (!get_tmpname(fnametmp, fname))
		return -1;

	if (am_root < 0) {
		/* For --fake-super, the file must be useable by the copying
		 * user, just like it would be for root. */
		added_perms = S_IRUSR|S_IWUSR;
	} else {
		/* For a normal copy, we need to be able to tweak things like xattrs. */
		added_perms = S_IWUSR;
	}

	/* We initially set the perms without the setuid/setgid bits or group
	 * access to ensure that there is no race condition.  They will be
	 * correctly updated after the right owner and group info is set.
	 * (Thanks to [email protected] for pointing this out.) */
	fd = do_mkstemp(fnametmp, (file->mode|added_perms) & INITACCESSPERMS, (char*)fname);

#if 0 /* was SUPPORT_ACLS */
	/* In most cases parent directories will already exist because their
	 * information should have been previously transferred, but that may
	 * not be the case with -R */
	if (fd == -1 && relative_paths && errno == ENOENT
	    && create_directory_path(fnametmp) == 0) {
		/* Get back to name with XXXXXX in it. */
		get_tmpname(fnametmp, fname);
		fd = do_mkstemp(fnametmp, (file->mode|added_perms) & INITACCESSPERMS, fname);
	}
#endif

	if (fd == -1) {
		rsyserr(FERROR_XFER, errno, "mkstemp %s failed",
			full_fname(fnametmp));
		return -1;
	}

	return fd;
}
示例#4
0
/**
 * Acts on file number @p i from @p flist, whose name is @p fname.
 *
 * First fixes up permissions, then generates checksums for the file.
 *
 * @note This comment was added later by mbp who was trying to work it
 * out.  It might be wrong.
 **/ 
int recv_generator(char *fname, struct file_list *flist, int i, int f_out)
{  
	int fd;
	STRUCT_STAT st;
	struct map_struct *buf;
	struct sum_struct *s;
	int statret;
	struct file_struct *file = flist->files[i];
	struct timeval tv_start;
	char *fnamecmp;
	char fnamecmpbuf[MAXPATHLEN];
	extern char *compare_dest;
	extern int list_only;
	extern int preserve_perms;
	extern int only_existing;
	extern int orig_umask;

	if (list_only) return 0;

	if (verbose > 2)
		rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i);

	statret = link_stat(fname,&st);

	if (only_existing && statret == -1 && errno == ENOENT) {
		/* we only want to update existing files */
		if (verbose > 1) rprintf(FINFO, "not creating new file \"%s\"\n",fname);
		return 0;
	}

	if (statret == 0 && 
	    !preserve_perms && 
	    (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) {
		/* if the file exists already and we aren't perserving
                   presmissions then act as though the remote end sent
                   us the file permissions we already have */
		file->mode = (file->mode & _S_IFMT) | (st.st_mode & ~_S_IFMT);
	}

	if (S_ISDIR(file->mode)) {
                /* The file to be received is a directory, so we need
                 * to prepare appropriately.  If there is already a
                 * file of that name and it is *not* a directory, then
                 * we need to delete it.  If it doesn't exist, then
                 * recursively create it. */
          
		if (dry_run) return 0; /* XXXX -- might cause inaccuracies?? -- mbp */
		if (statret == 0 && !S_ISDIR(st.st_mode)) {
			if (robust_unlink(fname) != 0) {
				rprintf(FERROR, RSYNC_NAME
					": recv_generator: unlink \"%s\" to make room for directory: %s\n",
                                        fname,strerror(errno));
				return 0;
			}
			statret = -1;
		}
		if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
			if (!(relative_paths && errno==ENOENT && 
			      create_directory_path(fname, orig_umask)==0 && 
			      do_mkdir(fname,file->mode)==0)) {
				rprintf(FERROR, RSYNC_NAME ": recv_generator: mkdir \"%s\": %s (2)\n",
					fname,strerror(errno));
			}
		}
		/* f_out is set to -1 when doing final directory 
		   permission and modification time repair */
		if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) 
			rprintf(FINFO,"%s/\n",fname);
		return 0;
	}

	if (preserve_links && S_ISLNK(file->mode)) {
#if SUPPORT_LINKS
		char lnk[MAXPATHLEN];
		int l;
		extern int safe_symlinks;

		if (safe_symlinks && unsafe_symlink(file->link, fname)) {
			if (verbose) {
				rprintf(FINFO,"ignoring unsafe symlink \"%s\" -> \"%s\"\n",
					fname,file->link);
			}
			return 0;
		}
		if (statret == 0) {
			l = readlink(fname,lnk,MAXPATHLEN-1);
			if (l > 0) {
				lnk[l] = 0;
				/* A link already pointing to the
				 * right place -- no further action
				 * required. */
				if (strcmp(lnk,file->link) == 0) {
					set_perms(fname,file,&st,1);
					return 0;
				}
			}  
			/* Not a symlink, so delete whatever's
			 * already there and put a new symlink
			 * in place. */			   
			delete_file(fname);
		}
		if (do_symlink(file->link,fname) != 0) {
			rprintf(FERROR,RSYNC_NAME": symlink \"%s\" -> \"%s\": %s\n",
				fname,file->link,strerror(errno));
		} else {
			set_perms(fname,file,NULL,0);
			if (verbose) {
				rprintf(FINFO,"%s -> %s\n", fname,file->link);
			}
		}
#endif
		return 0;
	}

#ifdef HAVE_MKNOD
	if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
		if (statret != 0 || 
		    st.st_mode != file->mode ||
		    st.st_rdev != file->rdev) {	
			delete_file(fname);
			if (verbose > 2)
				rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
					fname,(int)file->mode,(int)file->rdev);
			if (do_mknod(fname,file->mode,file->rdev) != 0) {
				rprintf(FERROR,"mknod %s : %s\n",fname,strerror(errno));
			} else {
				set_perms(fname,file,NULL,0);
				if (verbose)
					rprintf(FINFO,"%s\n",fname);
			}
		} else {
			set_perms(fname,file,&st,1);
		}
		return 0;
	}
#endif

	if (preserve_hard_links && check_hard_link(file)) {
		if (verbose > 1)
			rprintf(FINFO, "recv_generator: \"%s\" is a hard link\n",f_name(file));
		return 0;
	}

	if (!S_ISREG(file->mode)) {
		rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname);
		return 0;
	}

	fnamecmp = fname;

	if ((statret == -1) && (compare_dest != NULL)) {
		/* try the file at compare_dest instead */
		int saveerrno = errno;
		snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
		statret = link_stat(fnamecmpbuf,&st);
		if (!S_ISREG(st.st_mode))
			statret = -1;
		if (statret == -1)
			errno = saveerrno;
		else
			fnamecmp = fnamecmpbuf;
	}

	if (statret == -1) {
		if (errno == ENOENT) {
			write_int(f_out,i);
			if (!dry_run) {
			    if(do_stats){
				gettimeofday(&tv_start,0);
				rprintf(FINFO, "File start: %s time: %d %d\n",fnamecmp,
				    tv_start.tv_sec,
				    tv_start.tv_usec);
			    }
			    send_sums(NULL,f_out);
			return 1;
			}
		} else {
			if (verbose > 1)
				rprintf(FERROR, RSYNC_NAME
					": recv_generator failed to open \"%s\": %s\n",
					fname, strerror(errno));
			return 0;
		}
	}

	if (!S_ISREG(st.st_mode)) {
		if (delete_file(fname) != 0) {
			return 0;
		}
		if(do_stats){
		    gettimeofday(&tv_start,0);
		    rprintf(FINFO, "File start: %s time: %d %d\n",fnamecmp,
			tv_start.tv_sec,
			tv_start.tv_usec);
		}

		/* now pretend the file didn't exist */
		write_int(f_out,i);
		if (!dry_run) send_sums(NULL,f_out);    
		return 1;
	}

	if (opt_ignore_existing && fnamecmp == fname) { 
		if (verbose > 1)
			rprintf(FINFO,"%s exists\n",fname);
		return 0;
	} 

	if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) {
		if (verbose > 1)
			rprintf(FINFO,"%s is newer\n",fname);
		return 0;
	}

	if (skip_file(fname, file, &st)) {
		if (fnamecmp == fname)
			set_perms(fname,file,&st,1);
		return 0;
	}

	if (dry_run) {
		if(do_stats){
		    gettimeofday(&tv_start,0);
		    rprintf(FINFO, "File start: %s time: %d %d\n",fnamecmp,
			tv_start.tv_sec,
			tv_start.tv_usec);
		}
		write_int(f_out,i);
		return 1;
	}

	if (disable_deltas_p()) {
		if(do_stats){
		    gettimeofday(&tv_start,0);
		    rprintf(FINFO, "File start: %s time: %d %d\n",fnamecmp,
			tv_start.tv_sec,
			tv_start.tv_usec);
		}
		write_int(f_out,i);
		send_sums(NULL,f_out);    
		return 1;
	}
	if(do_stats){
	    gettimeofday(&tv_start,0);
	    rprintf(FINFO, "File start: %s time: %d %d\n",fnamecmp,
		    tv_start.tv_sec,
		    tv_start.tv_usec);
	}
	/* open the file */  
	fd = do_open(fnamecmp, O_RDONLY, 0);

	if (fd == -1) {
		rprintf(FERROR,RSYNC_NAME": failed to open \"%s\", continuing : %s\n",fnamecmp,strerror(errno));
		/* pretend the file didn't exist */
		write_int(f_out,i);
		send_sums(NULL,f_out);
		return 1;
	}

	if (st.st_size > 0) {
		buf = map_file(fd,st.st_size);
	} else {
		buf = NULL;
	}

	if (verbose > 3)
		rprintf(FINFO,"gen mapped %s of size %.0f\n",fnamecmp,(double)st.st_size);

	if(do_stats){
	    timing(TIMING_START);
	}
	s = generate_sums(buf,st.st_size,adapt_block_size(file, block_size));

	if(do_stats){
	    rprintf(FINFO, "Generator: %s %s\n", fnamecmp,timing(TIMING_END));
	}

	if (verbose > 2)
		rprintf(FINFO,"sending sums for %d\n",i);

	write_int(f_out,i);
	if(do_stats){
	    timing(TIMING_START);
	}
	send_sums(s,f_out);

	if(do_stats){
	    rprintf(FINFO, "Send sums: %s %s\n", fnamecmp,timing(TIMING_END));
	}
	close(fd);
	if (buf) unmap_file(buf);

	free_sums(s);
	return 1;
}
示例#5
0
void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
{  
	int fd;
	STRUCT_STAT st;
	struct map_struct *buf;
	struct sum_struct *s;
	int statret;
	struct file_struct *file = flist->files[i];
	char *fnamecmp;
	char fnamecmpbuf[MAXPATHLEN];
	extern char *compare_dest;
	extern int list_only;

	if (list_only) return;

	if (verbose > 2)
		rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i);

	statret = link_stat(fname,&st);

	if (S_ISDIR(file->mode)) {
		if (dry_run) return;
		if (statret == 0 && !S_ISDIR(st.st_mode)) {
			if (robust_unlink(fname) != 0) {
				rprintf(FERROR,"unlink %s : %s\n",fname,strerror(errno));
				return;
			}
			statret = -1;
		}
		if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
			if (!(relative_paths && errno==ENOENT && 
			      create_directory_path(fname)==0 && 
			      do_mkdir(fname,file->mode)==0)) {
				rprintf(FERROR,"mkdir %s : %s (2)\n",
					fname,strerror(errno));
			}
		}
		if (set_perms(fname,file,NULL,0) && verbose) 
			rprintf(FINFO,"%s/\n",fname);
		return;
	}

	if (preserve_links && S_ISLNK(file->mode)) {
#if SUPPORT_LINKS
		char lnk[MAXPATHLEN];
		int l;
		extern int safe_symlinks;

		if (safe_symlinks && unsafe_symlink(file->link, fname)) {
			if (verbose) {
				rprintf(FINFO,"ignoring unsafe symlink %s -> %s\n",
					fname,file->link);
			}
			return;
		}
		if (statret == 0) {
			l = readlink(fname,lnk,MAXPATHLEN-1);
			if (l > 0) {
				lnk[l] = 0;
				if (strcmp(lnk,file->link) == 0) {
					set_perms(fname,file,&st,1);
					return;
				}
			}
		}
		delete_file(fname);
		if (do_symlink(file->link,fname) != 0) {
			rprintf(FERROR,"link %s -> %s : %s\n",
				fname,file->link,strerror(errno));
		} else {
			set_perms(fname,file,NULL,0);
			if (verbose) {
				rprintf(FINFO,"%s -> %s\n",
					fname,file->link);
			}
		}
#endif
		return;
	}

#ifdef HAVE_MKNOD
	if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
		if (statret != 0 || 
		    st.st_mode != file->mode ||
		    st.st_rdev != file->rdev) {	
			delete_file(fname);
			if (verbose > 2)
				rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
					fname,(int)file->mode,(int)file->rdev);
			if (do_mknod(fname,file->mode,file->rdev) != 0) {
				rprintf(FERROR,"mknod %s : %s\n",fname,strerror(errno));
			} else {
				set_perms(fname,file,NULL,0);
				if (verbose)
					rprintf(FINFO,"%s\n",fname);
			}
		} else {
			set_perms(fname,file,&st,1);
		}
		return;
	}
#endif

	if (preserve_hard_links && check_hard_link(file)) {
		if (verbose > 1)
			rprintf(FINFO,"%s is a hard link\n",f_name(file));
		return;
	}

	if (!S_ISREG(file->mode)) {
		rprintf(FINFO,"skipping non-regular file %s\n",fname);
		return;
	}

	fnamecmp = fname;

	if ((statret == -1) && (compare_dest != NULL)) {
		/* try the file at compare_dest instead */
		int saveerrno = errno;
		slprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
		statret = link_stat(fnamecmpbuf,&st);
		if (!S_ISREG(st.st_mode))
			statret = -1;
		if (statret == -1)
			errno = saveerrno;
		else
			fnamecmp = fnamecmpbuf;
	}

	if (statret == -1) {
		if (errno == ENOENT) {
			write_int(f_out,i);
			if (!dry_run) send_sums(NULL,f_out);
		} else {
			if (verbose > 1)
				rprintf(FERROR,"recv_generator failed to open %s\n",fname);
		}
		return;
	}

	if (!S_ISREG(st.st_mode)) {
		if (delete_file(fname) != 0) {
			return;
		}

		/* now pretend the file didn't exist */
		write_int(f_out,i);
		if (!dry_run) send_sums(NULL,f_out);    
		return;
	}

	if (update_only && st.st_mtime > file->modtime && fnamecmp == fname) {
		if (verbose > 1)
			rprintf(FINFO,"%s is newer\n",fname);
		return;
	}

	if (skip_file(fname, file, &st)) {
		if (fnamecmp == fname)
			set_perms(fname,file,&st,1);
		return;
	}

	if (dry_run) {
		write_int(f_out,i);
		return;
	}

	if (whole_file) {
		write_int(f_out,i);
		send_sums(NULL,f_out);    
		return;
	}

	/* open the file */  
	fd = open(fnamecmp,O_RDONLY);

	if (fd == -1) {
		rprintf(FERROR,"failed to open %s : %s\n",fnamecmp,strerror(errno));
		rprintf(FERROR,"skipping %s\n",fname);
		return;
	}

	if (st.st_size > 0) {
		buf = map_file(fd,st.st_size);
	} else {
		buf = NULL;
	}

	if (verbose > 3)
		rprintf(FINFO,"gen mapped %s of size %d\n",fnamecmp,(int)st.st_size);

	s = generate_sums(buf,st.st_size,adapt_block_size(file, block_size));

	if (verbose > 2)
		rprintf(FINFO,"sending sums for %d\n",i);

	write_int(f_out,i);
	send_sums(s,f_out);

	close(fd);
	if (buf) unmap_file(buf);

	free_sums(s);
}
示例#6
0
文件: receiver.c 项目: OPSF/uClinux
/**
 * main routine for receiver process.
 *
 * Receiver process runs on the same host as the generator process. */
int recv_files(int f_in, struct file_list *flist, char *local_name)
{
	int next_gen_i = -1;
	int fd1,fd2;
	STRUCT_STAT st;
	int iflags, xlen;
	char *fname, fbuf[MAXPATHLEN];
	char xname[MAXPATHLEN];
	char fnametmp[MAXPATHLEN];
	char *fnamecmp, *partialptr, numbuf[4];
	char fnamecmpbuf[MAXPATHLEN];
	uchar fnamecmp_type;
	struct file_struct *file;
	struct stats initial_stats;
	int save_make_backups = make_backups;
	int itemizing = am_daemon ? daemon_log_format_has_i
		      : !am_server && log_format_has_i;
	int max_phase = protocol_version >= 29 ? 2 : 1;
	int i, recv_ok;

	if (verbose > 2)
		rprintf(FINFO,"recv_files(%d) starting\n",flist->count);

	if (flist->hlink_pool) {
		pool_destroy(flist->hlink_pool);
		flist->hlink_pool = NULL;
	}

	if (delay_updates)
		init_delayed_bits(flist->count);

	while (1) {
		cleanup_disable();

		i = read_int(f_in);
		if (i == -1) {
			if (read_batch) {
				get_next_gen_i(batch_gen_fd, next_gen_i,
					       flist->count);
				next_gen_i = -1;
			}
			if (++phase > max_phase)
				break;
			csum_length = SUM_LENGTH;
			if (verbose > 2)
				rprintf(FINFO, "recv_files phase=%d\n", phase);
			if (phase == 2 && delay_updates)
				handle_delayed_updates(flist, local_name);
			send_msg(MSG_DONE, "", 0);
			if (keep_partial && !partial_dir)
				make_backups = 0; /* prevents double backup */
			continue;
		}

		iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
					 xname, &xlen);
		if (iflags == ITEM_IS_NEW) /* no-op packet */
			continue;

		file = flist->files[i];
		fname = local_name ? local_name : f_name_to(file, fbuf);

		if (verbose > 2)
			rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));

		if (!(iflags & ITEM_TRANSFER)) {
			maybe_log_item(file, iflags, itemizing, xname);
			continue;
		}
		if (phase == 2) {
			rprintf(FERROR,
				"got transfer request in phase 2 [%s]\n",
				who_am_i());
			exit_cleanup(RERR_PROTOCOL);
		}

		stats.current_file_index = i;
		stats.num_transferred_files++;
		stats.total_transferred_size += file->length;
		cleanup_got_literal = 0;

		if (server_filter_list.head
		    && check_filter(&server_filter_list, fname, 0) < 0) {
			rprintf(FERROR, "attempt to hack rsync failed.\n");
			exit_cleanup(RERR_PROTOCOL);
		}

		if (!do_xfers) { /* log the transfer */
			if (!am_server && log_format)
				log_item(file, &stats, iflags, NULL);
			if (read_batch)
				discard_receive_data(f_in, file->length);
			continue;
		}
		if (write_batch < 0) {
			log_item(file, &stats, iflags, NULL);
			if (!am_server)
				discard_receive_data(f_in, file->length);
			continue;
		}

		if (read_batch) {
			next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
			if (i < next_gen_i) {
				rprintf(FINFO, "(Skipping batched update for \"%s\")\n",
					safe_fname(fname));
				discard_receive_data(f_in, file->length);
				continue;
			}
			next_gen_i = -1;
		}

		partialptr = partial_dir ? partial_dir_fname(fname) : fname;

		if (protocol_version >= 29) {
			switch (fnamecmp_type) {
			case FNAMECMP_FNAME:
				fnamecmp = fname;
				break;
			case FNAMECMP_PARTIAL_DIR:
				fnamecmp = partialptr;
				break;
			case FNAMECMP_BACKUP:
				fnamecmp = get_backup_name(fname);
				break;
			case FNAMECMP_FUZZY:
				if (file->dirname) {
					pathjoin(fnamecmpbuf, MAXPATHLEN,
						 file->dirname, xname);
					fnamecmp = fnamecmpbuf;
				} else
					fnamecmp = xname;
				break;
			default:
				if (fnamecmp_type >= basis_dir_cnt) {
					rprintf(FERROR,
						"invalid basis_dir index: %d.\n",
						fnamecmp_type);
					exit_cleanup(RERR_PROTOCOL);
				}
				pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
					 basis_dir[fnamecmp_type], fname);
				fnamecmp = fnamecmpbuf;
				break;
			}
			if (!fnamecmp || (server_filter_list.head
			  && check_filter(&server_filter_list, fname, 0) < 0))
				fnamecmp = fname;
		} else {
			/* Reminder: --inplace && --partial-dir are never
			 * enabled at the same time. */
			if (inplace && make_backups) {
				if (!(fnamecmp = get_backup_name(fname)))
					fnamecmp = fname;
			} else if (partial_dir && partialptr)
				fnamecmp = partialptr;
			else
				fnamecmp = fname;
		}

		initial_stats = stats;

		/* open the file */
		fd1 = do_open(fnamecmp, O_RDONLY, 0);

		if (fd1 == -1 && protocol_version < 29) {
			if (fnamecmp != fname) {
				fnamecmp = fname;
				fd1 = do_open(fnamecmp, O_RDONLY, 0);
			}

			if (fd1 == -1 && basis_dir[0]) {
				/* pre-29 allowed only one alternate basis */
				pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
					 basis_dir[0], fname);
				fnamecmp = fnamecmpbuf;
				fd1 = do_open(fnamecmp, O_RDONLY, 0);
			}
		}

		if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
			rsyserr(FERROR, errno, "fstat %s failed",
				full_fname(fnamecmp));
			discard_receive_data(f_in, file->length);
			close(fd1);
			continue;
		}

		if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
			/* this special handling for directories
			 * wouldn't be necessary if robust_rename()
			 * and the underlying robust_unlink could cope
			 * with directories
			 */
			rprintf(FERROR,"recv_files: %s is a directory\n",
				full_fname(fnamecmp));
			discard_receive_data(f_in, file->length);
			close(fd1);
			continue;
		}

		if (fd1 != -1 && !S_ISREG(st.st_mode)) {
			close(fd1);
			fd1 = -1;
		}

		if (fd1 != -1 && !preserve_perms) {
			/* if the file exists already and we aren't preserving
			 * permissions then act as though the remote end sent
			 * us the file permissions we already have */
			file->mode = st.st_mode;
		}

		/* We now check to see if we are writing file "inplace" */
		if (inplace)  {
			fd2 = do_open(fname, O_WRONLY|O_CREAT, 0);
			if (fd2 == -1) {
				rsyserr(FERROR, errno, "open %s failed",
					full_fname(fname));
				discard_receive_data(f_in, file->length);
				if (fd1 != -1)
					close(fd1);
				continue;
			}
		} else {
			if (!get_tmpname(fnametmp,fname)) {
				discard_receive_data(f_in, file->length);
				if (fd1 != -1)
					close(fd1);
				continue;
			}

			/* we initially set the perms without the
			 * setuid/setgid bits to ensure that there is no race
			 * condition. They are then correctly updated after
			 * the lchown. Thanks to [email protected] for pointing
			 * this out.  We also set it initially without group
			 * access because of a similar race condition. */
			fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);

			/* in most cases parent directories will already exist
			 * because their information should have been previously
			 * transferred, but that may not be the case with -R */
			if (fd2 == -1 && relative_paths && errno == ENOENT
			    && create_directory_path(fnametmp, orig_umask) == 0) {
				/* Get back to name with XXXXXX in it. */
				get_tmpname(fnametmp, fname);
				fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
			}
			if (fd2 == -1) {
				rsyserr(FERROR, errno, "mkstemp %s failed",
					full_fname(fnametmp));
				discard_receive_data(f_in, file->length);
				if (fd1 != -1)
					close(fd1);
				continue;
			}

			if (partialptr)
				cleanup_set(fnametmp, partialptr, file, fd1, fd2);
		}

		/* log the transfer */
		if (log_before_transfer)
			log_item(file, &initial_stats, iflags, NULL);
		else if (!am_server && verbose && do_progress)
			rprintf(FINFO, "%s\n", safe_fname(fname));

		/* recv file data */
		recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
				       fname, fd2, file->length);

		if (!log_before_transfer)
			log_item(file, &initial_stats, iflags, NULL);

		if (fd1 != -1)
			close(fd1);
		if (close(fd2) < 0) {
			rsyserr(FERROR, errno, "close failed on %s",
				full_fname(fnametmp));
			exit_cleanup(RERR_FILEIO);
		}

		if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
			finish_transfer(fname, fnametmp, file, recv_ok, 1);
			if (partialptr != fname && fnamecmp == partialptr) {
				do_unlink(partialptr);
				handle_partial_dir(partialptr, PDIR_DELETE);
			}
		} else if (keep_partial && partialptr
		    && handle_partial_dir(partialptr, PDIR_CREATE)) {
			finish_transfer(partialptr, fnametmp, file, recv_ok,
					!partial_dir);
			if (delay_updates && recv_ok) {
				set_delayed_bit(i);
				recv_ok = -1;
			}
		} else {
			partialptr = NULL;
			do_unlink(fnametmp);
		}

		cleanup_disable();

		if (recv_ok > 0) {
			if (remove_sent_files
			    || (preserve_hard_links && file->link_u.links)) {
				SIVAL(numbuf, 0, i);
				send_msg(MSG_SUCCESS, numbuf, 4);
			}
		} else if (!recv_ok) {
			int msgtype = phase || read_batch ? FERROR : FINFO;
			if (msgtype == FERROR || verbose) {
				char *errstr, *redostr, *keptstr;
				if (!(keep_partial && partialptr) && !inplace)
					keptstr = "discarded";
				else if (partial_dir)
					keptstr = "put into partial-dir";
				else
					keptstr = "retained";
				if (msgtype == FERROR) {
					errstr = "ERROR";
					redostr = "";
				} else {
					errstr = "WARNING";
					redostr = " (will try again)";
				}
				rprintf(msgtype,
					"%s: %s failed verification -- update %s%s.\n",
					errstr, safe_fname(fname),
					keptstr, redostr);
			}
			if (!phase) {
				SIVAL(numbuf, 0, i);
				send_msg(MSG_REDO, numbuf, 4);
			}
		}
	}
	make_backups = save_make_backups;

	if (phase == 2 && delay_updates) /* for protocol_version < 29 */
		handle_delayed_updates(flist, local_name);

	if (verbose > 2)
		rprintf(FINFO,"recv_files finished\n");

	return 0;
}