Man page: Move the description of --info=progress2 to a better place.
[rsync/rsync.git] / flist.c
diff --git a/flist.c b/flist.c
index 90c0ce5..7a6ab34 100644 (file)
--- a/flist.c
+++ b/flist.c
@@ -42,7 +42,6 @@ extern int xfer_dirs;
 extern int filesfrom_fd;
 extern int one_file_system;
 extern int copy_dirlinks;
-extern int keep_dirlinks;
 extern int preserve_uid;
 extern int preserve_gid;
 extern int preserve_acls;
@@ -51,12 +50,11 @@ extern int preserve_links;
 extern int preserve_hard_links;
 extern int preserve_devices;
 extern int preserve_specials;
-extern int uid_ndx;
-extern int gid_ndx;
+extern int delete_during;
+extern int missing_args;
 extern int eol_nulls;
 extern int relative_paths;
 extern int implied_dirs;
-extern int file_extra_cnt;
 extern int ignore_perishable;
 extern int non_perishable_cnt;
 extern int prune_empty_dirs;
@@ -65,11 +63,13 @@ extern int copy_unsafe_links;
 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;
 extern int sender_keeps_checksum;
 extern int unsort_ndx;
+extern uid_t our_uid;
 extern struct stats stats;
 extern char *filesfrom_host;
 extern char *usermap, *groupmap;
@@ -78,8 +78,8 @@ extern char curr_dir[MAXPATHLEN];
 
 extern struct chmod_mode_struct *chmod_modes;
 
-extern struct filter_list_struct filter_list;
-extern struct filter_list_struct daemon_filter_list;
+extern filter_rule_list filter_list;
+extern filter_rule_list daemon_filter_list;
 
 #ifdef ICONV_OPTION
 extern int filesfrom_convert;
@@ -96,6 +96,7 @@ struct file_list *cur_flist, *first_flist, *dir_flist;
 int send_dir_ndx = -1, send_dir_depth = -1;
 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
 int file_total = 0; /* total of all active items over all file-lists */
+int file_old_total = 0; /* total of active items that will soon be gone */
 int flist_eof = 0; /* all the file-lists are now known */
 
 #define NORMAL_NAME 0
@@ -119,7 +120,7 @@ int flist_eof = 0; /* all the file-lists are now known */
  * will survive just long enough to be used by send_file_entry(). */
 static dev_t tmp_rdev;
 #ifdef SUPPORT_HARD_LINKS
-static int64 tmp_dev, tmp_ino;
+static int64 tmp_dev = -1, tmp_ino;
 #endif
 static char tmp_sum[MAX_DIGEST_LEN];
 
@@ -194,7 +195,7 @@ static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
        if (link_stat(path, stp, copy_dirlinks) < 0)
                return -1;
        if (S_ISLNK(stp->st_mode)) {
-               int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
+               int llen = do_readlink(path, linkbuf, MAXPATHLEN - 1);
                if (llen < 0)
                        return -1;
                linkbuf[llen] = '\0';
@@ -431,7 +432,7 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                        stats.num_symlinks++;
                else if (IS_DEVICE(file->mode))
                        stats.num_devices++;
-               else
+               else if (IS_SPECIAL(file->mode))
                        stats.num_specials++;
                xflags = 0;
        }
@@ -441,8 +442,7 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
        else
                mode = file->mode;
 
-       if ((preserve_devices && IS_DEVICE(mode))
-        || (preserve_specials && IS_SPECIAL(mode))) {
+       if (preserve_devices && IS_DEVICE(mode)) {
                if (protocol_version < 28) {
                        if (tmp_rdev == rdev)
                                xflags |= XMIT_SAME_RDEV_pre28;
@@ -457,6 +457,17 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                        if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
                                xflags |= XMIT_RDEV_MINOR_8_pre30;
                }
+       } else if (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31) {
+               /* Special files don't need an rdev number, so just make
+                * the historical transmission of the value efficient. */
+               if (protocol_version < 28)
+                       xflags |= XMIT_SAME_RDEV_pre28;
+               else {
+                       rdev = MAKEDEV(major(rdev), 0);
+                       xflags |= XMIT_SAME_RDEV_MAJOR;
+                       if (protocol_version < 30)
+                               xflags |= XMIT_RDEV_MINOR_8_pre30;
+               }
        } else if (protocol_version < 28)
                rdev = MAKEDEV(0, 0);
        if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
@@ -483,9 +494,11 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                xflags |= XMIT_SAME_TIME;
        else
                modtime = file->modtime;
+       if (NSEC_BUMP(file) && protocol_version >= 31)
+               xflags |= XMIT_MOD_NSEC;
 
 #ifdef SUPPORT_HARD_LINKS
-       if (tmp_dev != 0) {
+       if (tmp_dev != -1) {
                if (protocol_version >= 30) {
                        struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
                        first_hlink_ndx = (int32)(long)np->data - 1;
@@ -565,6 +578,8 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                else
                        write_int(f, modtime);
        }
+       if (xflags & XMIT_MOD_NSEC)
+               write_varint(f, F_MOD_NSEC(file));
        if (!(xflags & XMIT_SAME_MODE))
                write_int(f, to_wire_mode(mode));
        if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
@@ -592,7 +607,7 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                }
        }
        if ((preserve_devices && IS_DEVICE(mode))
-        || (preserve_specials && IS_SPECIAL(mode))) {
+        || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
                if (protocol_version < 28) {
                        if (!(xflags & XMIT_SAME_RDEV_pre28))
                                write_int(f, (int)rdev);
@@ -616,15 +631,17 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
 #endif
 
 #ifdef SUPPORT_HARD_LINKS
-       if (tmp_dev != 0 && protocol_version < 30) {
+       if (tmp_dev != -1 && protocol_version < 30) {
+               /* Older protocols expect the dev number to be transmitted
+                * 1-incremented so that it is never zero. */
                if (protocol_version < 26) {
                        /* 32-bit dev_t and ino_t */
-                       write_int(f, (int32)dev);
+                       write_int(f, (int32)(dev+1));
                        write_int(f, (int32)tmp_ino);
                } else {
                        /* 64-bit dev_t and ino_t */
                        if (!(xflags & XMIT_SAME_DEV_pre30))
-                               write_longint(f, dev);
+                               write_longint(f, dev+1);
                        write_longint(f, tmp_ino);
                }
        }
@@ -650,8 +667,7 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                stats.total_size += F_LENGTH(file);
 }
 
-static struct file_struct *recv_file_entry(struct file_list *flist,
-                                          int xflags, int f)
+static struct file_struct *recv_file_entry(int f, struct file_list *flist, int xflags)
 {
        static int64 modtime;
        static mode_t mode;
@@ -673,6 +689,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
        int extra_len = file_extra_cnt * EXTRA_LEN;
        int first_hlink_ndx = -1;
        int64 file_length;
+       uint32 modtime_nsec;
        const char *basename;
        struct file_struct *file;
        alloc_pool_t *pool;
@@ -707,7 +724,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                INIT_CONST_XBUF(outbuf, thisname);
                INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
 
-               if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
+               if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR_UTF8,
                            "[%s] cannot convert filename: %s (%s)\n",
@@ -756,13 +773,13 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                        struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
                        file_length = F_LENGTH(first);
                        modtime = first->modtime;
+                       modtime_nsec = F_MOD_NSEC(first);
                        mode = first->mode;
                        if (preserve_uid)
                                uid = F_OWNER(first);
                        if (preserve_gid)
                                gid = F_GROUP(first);
-                       if ((preserve_devices && IS_DEVICE(mode))
-                        || (preserve_specials && IS_SPECIAL(mode))) {
+                       if (preserve_devices && IS_DEVICE(mode)) {
                                uint32 *devp = F_RDEV_P(first);
                                rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
                                extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
@@ -790,10 +807,14 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                } else
                        modtime = read_int(f);
        }
+       if (xflags & XMIT_MOD_NSEC)
+               modtime_nsec = read_varint(f);
+       else
+               modtime_nsec = 0;
        if (!(xflags & XMIT_SAME_MODE))
                mode = from_wire_mode(read_int(f));
 
-       if (chmod_modes && !S_ISLNK(mode))
+       if (chmod_modes && !S_ISLNK(mode) && mode)
                mode = tweak_mode(mode, chmod_modes);
 
        if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
@@ -821,7 +842,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
        }
 
        if ((preserve_devices && IS_DEVICE(mode))
-        || (preserve_specials && IS_SPECIAL(mode))) {
+        || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
                if (protocol_version < 28) {
                        if (!(xflags & XMIT_SAME_RDEV_pre28))
                                rdev = (dev_t)read_int(f);
@@ -837,7 +858,8 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                                rdev_minor = read_int(f);
                        rdev = MAKEDEV(rdev_major, rdev_minor);
                }
-               extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
+               if (IS_DEVICE(mode))
+                       extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
                file_length = 0;
        } else if (protocol_version < 28)
                rdev = MAKEDEV(0, 0);
@@ -886,6 +908,10 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
 #if SIZEOF_INT64 >= 8
        if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
                extra_len += EXTRA_LEN;
+#endif
+#ifdef HAVE_UTIMENSAT
+       if (modtime_nsec)
+               extra_len += EXTRA_LEN;
 #endif
        if (file_length < 0) {
                rprintf(FERROR, "Offset underflow: file-length is negative\n");
@@ -922,6 +948,12 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                file->flags |= FLAG_HLINKED;
 #endif
        file->modtime = (time_t)modtime;
+#ifdef HAVE_UTIMENSAT
+       if (modtime_nsec) {
+               file->flags |= FLAG_MOD_NSEC;
+               OPT_EXTRA(file, 0)->unum = modtime_nsec;
+       }
+#endif
        file->len32 = (uint32)file_length;
 #if SIZEOF_INT64 >= 8
        if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
@@ -930,7 +962,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                exit_cleanup(RERR_UNSUPPORTED);
 #else
                file->flags |= FLAG_LENGTH64;
-               OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
+               OPT_EXTRA(file, NSEC_BUMP(file))->unum = (uint32)(file_length >> 32);
 #endif
        }
 #endif
@@ -978,8 +1010,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                }
        }
 
-       if ((preserve_devices && IS_DEVICE(mode))
-        || (preserve_specials && IS_SPECIAL(mode))) {
+       if (preserve_devices && IS_DEVICE(mode)) {
                uint32 *devp = F_RDEV_P(file);
                DEV_MAJOR(devp) = major(rdev);
                DEV_MINOR(devp) = minor(rdev);
@@ -1011,7 +1042,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                                read_sbuf(f, inbuf.buf, inbuf.len);
                                INIT_XBUF(outbuf, bp, 0, alloc_len);
 
-                               if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
+                               if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
                                        io_error |= IOERR_GENERAL;
                                        rprintf(FERROR_XFER,
                                            "[%s] cannot convert symlink data for: %s (%s)\n",
@@ -1077,11 +1108,11 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
 
 #ifdef SUPPORT_ACLS
        if (preserve_acls && !S_ISLNK(mode))
-               receive_acl(file, f);
+               receive_acl(f, file);
 #endif
 #ifdef SUPPORT_XATTRS
        if (preserve_xattrs)
-               receive_xattr(file, f );
+               receive_xattr(f, file);
 #endif
 
        if (S_ISREG(mode) || S_ISLNK(mode))
@@ -1124,8 +1155,10 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
        if (sanitize_paths)
                sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
 
-       if (stp && S_ISDIR(stp->st_mode)) {
-               st = *stp; /* Needed for "symlink/." with --relative. */
+       if (stp && (S_ISDIR(stp->st_mode) || stp->st_mode == 0)) {
+               /* This is needed to handle a "symlink/." with a --relative
+                * dir, or a request to delete a specific file. */
+               st = *stp;
                *linkname = '\0'; /* make IBM code checker happy */
        } else if (readlink_stat(thisname, &st, linkname) != 0) {
                int save_errno = errno;
@@ -1166,6 +1199,11 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
                                full_fname(thisname));
                }
                return NULL;
+       } else if (st.st_mode == 0) {
+               io_error |= IOERR_GENERAL;
+               rprintf(FINFO, "skipping file with bogus (zero) st_mode: %s\n",
+                       full_fname(thisname));
+               return NULL;
        }
 
        if (filter_level == NO_FILTERS)
@@ -1254,6 +1292,10 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
        linkname_len = 0;
 #endif
 
+#ifdef ST_MTIME_NSEC
+       if (st.ST_MTIME_NSEC && protocol_version >= 31)
+               extra_len += EXTRA_LEN;
+#endif
 #if SIZEOF_CAPITAL_OFF_T >= 8
        if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
                extra_len += EXTRA_LEN;
@@ -1291,34 +1333,43 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
                if (protocol_version >= 28
                 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
                 : S_ISREG(st.st_mode)) {
-                       tmp_dev = (int64)st.st_dev + 1;
+                       tmp_dev = (int64)st.st_dev;
                        tmp_ino = (int64)st.st_ino;
                } else
-                       tmp_dev = 0;
+                       tmp_dev = -1;
        }
 #endif
 
 #ifdef HAVE_STRUCT_STAT_ST_RDEV
-       if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
+       if (IS_DEVICE(st.st_mode)) {
                tmp_rdev = st.st_rdev;
                st.st_size = 0;
-       }
+       } else if (IS_SPECIAL(st.st_mode))
+               st.st_size = 0;
 #endif
 
        file->flags = flags;
        file->modtime = st.st_mtime;
+#ifdef ST_MTIME_NSEC
+       if (st.ST_MTIME_NSEC && protocol_version >= 31) {
+               file->flags |= FLAG_MOD_NSEC;
+               OPT_EXTRA(file, 0)->unum = st.ST_MTIME_NSEC;
+       }
+#endif
        file->len32 = (uint32)st.st_size;
 #if SIZEOF_CAPITAL_OFF_T >= 8
        if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
                file->flags |= FLAG_LENGTH64;
-               OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
+               OPT_EXTRA(file, NSEC_BUMP(file))->unum = (uint32)(st.st_size >> 32);
        }
 #endif
        file->mode = st.st_mode;
-       if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
+       if (preserve_uid)
                F_OWNER(file) = st.st_uid;
-       if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
+       if (preserve_gid)
                F_GROUP(file) = st.st_gid;
+       if (am_generator && st.st_uid == our_uid)
+               file->flags |= FLAG_OWNED_BY_US;
 
        if (basename != thisname)
                file->dirname = lastdir;
@@ -1364,7 +1415,7 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
        if (!file)
                return NULL;
 
-       if (chmod_modes && !S_ISLNK(file->mode))
+       if (chmod_modes && !S_ISLNK(file->mode) && file->mode)
                file->mode = tweak_mode(file->mode, chmod_modes);
 
        if (f >= 0) {
@@ -1408,14 +1459,14 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
                        if (file->dirname) {
                                INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
                                outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
-                               if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
+                               if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0)
                                        goto convert_error;
                                outbuf.size += 2;
                                fbuf[outbuf.len++] = '/';
                        }
 
                        INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
-                       if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
+                       if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
                          convert_error:
                                io_error |= IOERR_GENERAL;
                                rprintf(FERROR_XFER,
@@ -1429,7 +1480,7 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
                        if (symlink_len && sender_symlink_iconv) {
                                INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
                                INIT_CONST_XBUF(outbuf, symlink_buf);
-                               if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
+                               if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
                                        io_error |= IOERR_GENERAL;
                                        f_name(file, fbuf);
                                        rprintf(FERROR_XFER,
@@ -1458,6 +1509,7 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
 #endif
 #ifdef SUPPORT_XATTRS
                if (preserve_xattrs) {
+                       sx.st.st_mode = file->mode;
                        if (get_xattr(fname, &sx) < 0) {
                                io_error |= IOERR_GENERAL;
                                return NULL;
@@ -1473,13 +1525,13 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
 
 #ifdef SUPPORT_ACLS
                if (preserve_acls && !S_ISLNK(file->mode)) {
-                       send_acl(&sx, f);
+                       send_acl(f, &sx);
                        free_acl(&sx);
                }
 #endif
 #ifdef SUPPORT_XATTRS
                if (preserve_xattrs) {
-                       F_XATTR(file) = send_xattr(&sx, f);
+                       F_XATTR(file) = send_xattr(f, &sx);
                        free_xattr(&sx);
                }
 #endif
@@ -1506,12 +1558,6 @@ static void send_if_directory(int f, struct file_list *flist,
                unsigned int len = strlen(fbuf);
                if (len > 1 && fbuf[len-1] == '/')
                        fbuf[--len] = '\0';
-               if (len >= MAXPATHLEN - 1) {
-                       io_error |= IOERR_GENERAL;
-                       rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
-                               full_fname(fbuf));
-                       return;
-               }
                save_filters = push_local_filters(fbuf, len);
                send_directory(f, flist, fbuf, len, flags);
                pop_local_filters(save_filters);
@@ -1670,21 +1716,30 @@ static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
        }
 
        p = fbuf + len;
-       if (len != 1 || *fbuf != '/')
+       if (len == 1 && *fbuf == '/')
+               remainder = MAXPATHLEN - 1;
+       else if (len < MAXPATHLEN-1) {
                *p++ = '/';
-       *p = '\0';
-       remainder = MAXPATHLEN - (p - fbuf);
+               *p = '\0';
+               remainder = MAXPATHLEN - (len + 1);
+       } else
+               remainder = 0;
 
        for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
+               unsigned name_len;
                char *dname = d_name(di);
                if (dname[0] == '.' && (dname[1] == '\0'
                    || (dname[1] == '.' && dname[2] == '\0')))
                        continue;
-               if (strlcpy(p, dname, remainder) >= remainder) {
+               name_len = strlcpy(p, dname, remainder);
+               if (name_len >= remainder) {
+                       char save = fbuf[len];
+                       fbuf[len] = '\0';
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR_XFER,
-                               "cannot send long-named file %s\n",
-                               full_fname(fbuf));
+                               "filename overflows max-path len by %u: %s/%s\n",
+                               name_len - remainder + 1, fbuf, dname);
+                       fbuf[len] = save;
                        continue;
                }
                if (dname[0] == '\0') {
@@ -1725,7 +1780,7 @@ static void send_implied_dirs(int f, struct file_list *flist, char *fname,
        item_list *relname_list;
        relnamecache **rnpp;
        int len, need_new_dir, depth = 0;
-       struct filter_list_struct save_filter_list = filter_list;
+       filter_rule_list save_filter_list = filter_list;
 
        flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
        filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
@@ -1816,6 +1871,15 @@ done:
        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];
@@ -1886,17 +1950,17 @@ void send_extra_file_list(int f, int at_least)
        struct file_list *flist;
        int64 start_write;
        uint16 prev_flags;
-       int old_cnt, save_io_error = io_error;
+       int save_io_error = io_error;
 
        if (flist_eof)
                return;
 
+       if (at_least < 0)
+               at_least = file_total - file_old_total + 1;
+
        /* Keep sending data until we have the requested number of
         * files in the upcoming file-lists. */
-       old_cnt = cur_flist->used;
-       for (flist = first_flist; flist != cur_flist; flist = flist->next)
-               old_cnt += flist->used;
-       while (file_total - old_cnt < at_least) {
+       while (file_total - file_old_total < at_least) {
                struct file_struct *file = dir_flist->sorted[send_dir_ndx];
                int dir_ndx, dstart = stats.num_dirs;
                const char *pathname = F_PATHNAME(file);
@@ -1931,11 +1995,15 @@ void send_extra_file_list(int f, int at_least)
                        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) {
@@ -1965,6 +2033,8 @@ void send_extra_file_list(int f, int at_least)
                                if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
                                        write_ndx(f, NDX_FLIST_EOF);
                                        flist_eof = 1;
+                                       if (DEBUG_GTE(FLIST, 3))
+                                               rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
                                        change_local_filter_dir(NULL, 0, 0);
                                        goto finish;
                                }
@@ -1992,7 +2062,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
        struct timeval start_tv, end_tv;
        int64 start_write;
        int use_ff_fd = 0;
-       int disable_buffering;
+       int disable_buffering, reenable_multiplex = -1;
        int flags = recurse ? FLAG_CONTENT_DIR : 0;
        int reading_remotely = filesfrom_host != NULL;
        int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
@@ -2033,6 +2103,12 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                                full_fname(argv[0]));
                        exit_cleanup(RERR_FILESELECT);
                }
+               if (protocol_version < 31) {
+                       /* Older protocols send the files-from data w/o packaging
+                        * it in multiplexed I/O packets, so temporarily switch
+                        * to buffered I/O to match this behavior. */
+                       reenable_multiplex = io_end_multiplex_in(MPLX_TO_BUFFERED);
+               }
                use_ff_fd = 1;
        }
 
@@ -2169,14 +2245,26 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
                 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
                 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
-                       io_error |= IOERR_GENERAL;
-                       rsyserr(FERROR_XFER, errno, "link_stat %s failed",
-                               full_fname(fbuf));
-                       continue;
+                       if (errno != ENOENT || missing_args == 0) {
+                               /* This is a transfer error, but inhibit deletion
+                                * only if we might be omitting an existing file. */
+                               if (errno != ENOENT)
+                                       io_error |= IOERR_GENERAL;
+                               rsyserr(FERROR_XFER, errno, "link_stat %s failed",
+                                       full_fname(fbuf));
+                               continue;
+                       } else if (missing_args == 1) {
+                               /* Just ignore the arg. */
+                               continue;
+                       } else /* (missing_args == 2) */ {
+                               /* Send the arg as a "missing" entry with
+                                * mode 0, which tells the generator to delete it. */
+                               memset(&st, 0, sizeof st);
+                       }
                }
 
                /* A dot-dir should not be excluded! */
-               if (name_type != DOTDIR_NAME
+               if (name_type != DOTDIR_NAME && st.st_mode != 0
                 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
                        continue;
 
@@ -2226,6 +2314,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                        send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
        }
 
+       if (reenable_multiplex >= 0)
+               io_start_multiplex_in(reenable_multiplex);
+
        gettimeofday(&end_tv, NULL);
        stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
                              + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
@@ -2234,11 +2325,15 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
        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
@@ -2270,20 +2365,19 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                flist->sorted = flist->files;
        flist_sort_and_clean(flist, 0);
        file_total += flist->used;
+       file_old_total += flist->used;
 
        if (numeric_ids <= 0 && !inc_recurse)
                send_id_list(f);
 
-       set_msg_fd_in(-1);
-
        /* 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)
-               io_end_buffering_out();
+               io_end_buffering_out(IOBUF_FREE_BUFS);
 
        stats.flist_size = stats.total_written - start_write;
        stats.num_files = flist->used;
@@ -2303,6 +2397,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                if (send_dir_ndx < 0) {
                        write_ndx(f, NDX_FLIST_EOF);
                        flist_eof = 1;
+                       if (DEBUG_GTE(FLIST, 3))
+                               rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
                }
                else if (file_total == 1) {
                        /* If we're creating incremental file-lists and there
@@ -2310,8 +2406,11 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                         * file-list to check if this is a 1-file xfer. */
                        send_extra_file_list(f, 1);
                }
-       } else
+       } else {
                flist_eof = 1;
+               if (DEBUG_GTE(FLIST, 3))
+                       rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
+       }
 
        return flist;
 }
@@ -2360,7 +2459,7 @@ struct file_list *recv_file_list(int f)
 
                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);
                        }
@@ -2371,7 +2470,7 @@ struct file_list *recv_file_list(int f)
                }
 
                flist_expand(flist, 1);
-               file = recv_file_entry(flist, flags, f);
+               file = recv_file_entry(f, flist, flags);
 
                if (S_ISREG(file->mode)) {
                        /* Already counted */
@@ -2440,6 +2539,8 @@ struct file_list *recv_file_list(int f)
        else if (f >= 0) {
                recv_id_list(f, flist);
                flist_eof = 1;
+               if (DEBUG_GTE(FLIST, 3))
+                       rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
        }
 
        flist_sort_and_clean(flist, relative_paths);
@@ -2474,6 +2575,8 @@ void recv_additional_file_list(int f)
        int ndx = read_ndx(f);
        if (ndx == NDX_FLIST_EOF) {
                flist_eof = 1;
+               if (DEBUG_GTE(FLIST, 3))
+                       rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
                change_local_filter_dir(NULL, 0, 0);
        } else {
                ndx = NDX_FLIST_OFFSET - ndx;
@@ -3067,13 +3170,14 @@ char *f_name(const struct file_struct *f, char *fbuf)
  * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
  * buffer (the functions we call will append names onto the end, but the old
  * dir value will be restored on exit). */
-struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
+struct file_list *get_dirlist(char *dirname, int dlen, int flags)
 {
        struct file_list *dirlist;
        char dirbuf[MAXPATHLEN];
        int save_recurse = recurse;
        int save_xfer_dirs = xfer_dirs;
        int save_prune_empty_dirs = prune_empty_dirs;
+       int senddir_fd = flags & GDL_IGNORE_FILTER_RULES ? -2 : -1;
 
        if (dlen < 0) {
                dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
@@ -3086,7 +3190,7 @@ struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
 
        recurse = 0;
        xfer_dirs = 1;
-       send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
+       send_directory(senddir_fd, dirlist, dirname, dlen, FLAG_CONTENT_DIR);
        xfer_dirs = save_xfer_dirs;
        recurse = save_recurse;
        if (INFO_GTE(PROGRESS, 1))