Don't free the hlink data (it is not separately allocated anymore).
[rsync/rsync.git] / flist.c
diff --git a/flist.c b/flist.c
index 0601901..58e3da0 100644 (file)
--- a/flist.c
+++ b/flist.c
@@ -37,10 +37,13 @@ extern int verbose;
 extern int do_progress;
 extern int am_server;
 extern int always_checksum;
+extern int module_id;
+extern int ignore_errors;
 
 extern int cvs_exclude;
 
 extern int recurse;
+extern char curr_dir[MAXPATHLEN];
 extern char *files_from;
 extern int filesfrom_fd;
 
@@ -182,17 +185,18 @@ static void list_file_entry(struct file_struct *f)
 
        permstring(perms, f->mode);
 
+#if SUPPORT_LINKS
        if (preserve_links && S_ISLNK(f->mode)) {
                rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
                        perms,
                        (double) f->length, timestring(f->modtime),
-                       f_name(f), f->link);
-       } else {
+                       f_name(f), f->u.link);
+       } else
+#endif
                rprintf(FINFO, "%s %11.0f %s %s\n",
                        perms,
                        (double) f->length, timestring(f->modtime),
                        f_name(f));
-       }
 }
 
 
@@ -296,8 +300,10 @@ static void set_filesystem(char *fname)
 
 static int to_wire_mode(mode_t mode)
 {
+#if SUPPORT_LINKS
        if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
                return (mode & ~(_S_IFMT)) | 0120000;
+#endif
        return (int) mode;
 }
 
@@ -312,6 +318,7 @@ static mode_t from_wire_mode(int mode)
 static void send_directory(int f, struct file_list *flist, char *dir);
 
 static char *flist_dir;
+static int flist_dir_len;
 
 
 /**
@@ -338,7 +345,8 @@ static void flist_expand(struct file_list *flist)
                }
 
                if (verbose >= 2) {
-                       rprintf(FINFO, "expand file_list to %.0f bytes, did%s move\n",
+                       rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
+                               who_am_i(),
                                (double)sizeof(flist->files[0])
                                * flist->malloced,
                                (new_ptr == flist->files) ? " not" : "");
@@ -356,7 +364,7 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
        unsigned short flags;
        static time_t modtime;
        static mode_t mode;
-       static DEV64_T rdev;    /* just high bytes in p28 onward */
+       static DEV64_T rdev, rdev_high;
        static DEV64_T dev;
        static uid_t uid;
        static gid_t gid;
@@ -370,7 +378,7 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
        if (!file) {
                write_byte(f, 0);
                modtime = 0, mode = 0;
-               rdev = 0, dev = 0;
+               rdev = 0, rdev_high = 0, dev = 0;
                uid = 0, gid = 0;
                *lastname = '\0';
                return;
@@ -378,139 +386,157 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
 
        io_write_phase = "send_file_entry";
 
-       fname = f_name_to(file, fbuf, sizeof fbuf);
+       fname = f_name_to(file, fbuf);
 
        flags = base_flags;
 
        if (file->mode == mode)
-               flags |= SAME_MODE;
+               flags |= XMIT_SAME_MODE;
        else
                mode = file->mode;
        if (preserve_devices) {
                if (protocol_version < 28) {
-                       if (IS_DEVICE(mode) && file->rdev == rdev) {
-                               /* Set both flags so that the test when
-                                * writing the data is simpler. */
-                               flags |= SAME_RDEV_pre28|SAME_HIGH_RDEV;
+                       if (IS_DEVICE(mode)) {
+                               if (file->u.rdev == rdev) {
+                                       /* Set both flags to simplify the test
+                                        * when writing the data. */
+                                       flags |= XMIT_SAME_RDEV_pre28
+                                              | XMIT_SAME_HIGH_RDEV;
+                               } else
+                                       rdev = file->u.rdev;
+                       } else
+                               rdev = 0;
+               } else if (IS_DEVICE(mode)) {
+                       if ((file->u.rdev & ~0xFF) == rdev_high)
+                               flags |= XMIT_SAME_HIGH_RDEV;
+                       else {
+                               rdev = file->u.rdev;
+                               rdev_high = rdev & ~0xFF;
                        }
-                       else
-                               rdev = file->rdev;
-               }
-               else if (IS_DEVICE(mode)) {
-                       if ((file->rdev & ~0xFF) == rdev)
-                               flags |= SAME_HIGH_RDEV;
-                       else
-                               rdev = file->rdev & ~0xFF;
                }
        }
        if (file->uid == uid)
-               flags |= SAME_UID;
+               flags |= XMIT_SAME_UID;
        else
                uid = file->uid;
        if (file->gid == gid)
-               flags |= SAME_GID;
+               flags |= XMIT_SAME_GID;
        else
                gid = file->gid;
        if (file->modtime == modtime)
-               flags |= SAME_TIME;
+               flags |= XMIT_SAME_TIME;
        else
                modtime = file->modtime;
-       if (file->flags & HAS_INODE_DATA) {
-               if (file->dev == dev) {
+#if SUPPORT_HARD_LINKS
+       if (file->link_u.idev) {
+               if (file->F_DEV == dev) {
                        if (protocol_version >= 28)
-                               flags |= SAME_DEV;
-               }
-               else
-                       dev = file->dev;
-               flags |= HAS_INODE_DATA;
+                               flags |= XMIT_SAME_DEV;
+               } else
+                       dev = file->F_DEV;
+               flags |= XMIT_HAS_IDEV_DATA;
        }
+#endif
 
        for (l1 = 0;
             lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
             l1++) {}
-       l2 = strlen(fname) - l1;
+       l2 = strlen(fname+l1);
 
        if (l1 > 0)
-               flags |= SAME_NAME;
+               flags |= XMIT_SAME_NAME;
        if (l2 > 255)
-               flags |= LONG_NAME;
+               flags |= XMIT_LONG_NAME;
 
-       /* We must make sure we don't send a zero flags byte or
-        * the other end will terminate the flist transfer. */
-       if (flags == 0 && !S_ISDIR(mode))
-               flags |= FLAG_DELETE; /* NOTE: no meaning for non-dir */
+       /* We must make sure we don't send a zero flag byte or the
+        * other end will terminate the flist transfer.  Note that
+        * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
+        * it's harmless way to add a bit to the first flag byte. */
        if (protocol_version >= 28) {
-               if ((flags & 0xFF00) || flags == 0) {
-                       flags |= EXTENDED_FLAGS;
+               if (!flags && !S_ISDIR(mode))
+                       flags |= XMIT_TOP_DIR;
+               if ((flags & 0xFF00) || !flags) {
+                       flags |= XMIT_EXTENDED_FLAGS;
                        write_byte(f, flags);
                        write_byte(f, flags >> 8);
                } else
                        write_byte(f, flags);
        } else {
-               if (flags == 0)
-                       flags |= LONG_NAME;
+               if (!(flags & 0xFF) && !S_ISDIR(mode))
+                       flags |= XMIT_TOP_DIR;
+               if (!(flags & 0xFF))
+                       flags |= XMIT_LONG_NAME;
                write_byte(f, flags);
        }
-       if (flags & SAME_NAME)
+       if (flags & XMIT_SAME_NAME)
                write_byte(f, l1);
-       if (flags & LONG_NAME)
+       if (flags & XMIT_LONG_NAME)
                write_int(f, l2);
        else
                write_byte(f, l2);
        write_buf(f, fname + l1, l2);
 
        write_longint(f, file->length);
-       if (!(flags & SAME_TIME))
+       if (!(flags & XMIT_SAME_TIME))
                write_int(f, modtime);
-       if (!(flags & SAME_MODE))
+       if (!(flags & XMIT_SAME_MODE))
                write_int(f, to_wire_mode(mode));
-       if (preserve_uid && !(flags & SAME_UID)) {
+       if (preserve_uid && !(flags & XMIT_SAME_UID)) {
                add_uid(uid);
                write_int(f, uid);
        }
-       if (preserve_gid && !(flags & SAME_GID)) {
+       if (preserve_gid && !(flags & XMIT_SAME_GID)) {
                add_gid(gid);
                write_int(f, gid);
        }
        if (preserve_devices && IS_DEVICE(mode)) {
-               /* If SAME_HIGH_RDEV is off, SAME_RDEV_pre28 is also off.
-                * Also, avoid using "rdev" because it may be incomplete. */
-               if (!(flags & SAME_HIGH_RDEV))
-                       write_int(f, file->rdev);
+               /* If XMIT_SAME_HIGH_RDEV is off, XMIT_SAME_RDEV_pre28 is
+                * also off. */
+               if (!(flags & XMIT_SAME_HIGH_RDEV))
+                       write_int(f, rdev);
                else if (protocol_version >= 28)
-                       write_byte(f, file->rdev);
+                       write_byte(f, rdev);
        }
 
 #if SUPPORT_LINKS
        if (preserve_links && S_ISLNK(mode)) {
-               write_int(f, strlen(file->link));
-               write_buf(f, file->link, strlen(file->link));
+               int len = strlen(file->u.link);
+               write_int(f, len);
+               write_buf(f, file->u.link, len);
        }
 #endif
 
 #if SUPPORT_HARD_LINKS
-       if (flags & HAS_INODE_DATA) {
+       if (flags & XMIT_HAS_IDEV_DATA) {
                if (protocol_version < 26) {
                        /* 32-bit dev_t and ino_t */
                        write_int(f, dev);
-                       write_int(f, file->inode);
+                       write_int(f, file->F_INODE);
                } else {
                        /* 64-bit dev_t and ino_t */
-                       if (!(flags & SAME_DEV))
+                       if (!(flags & XMIT_SAME_DEV))
                                write_longint(f, dev);
-                       write_longint(f, file->inode);
+                       write_longint(f, file->F_INODE);
                }
        }
 #endif
 
-       if (always_checksum && (protocol_version < 28 || S_ISREG(mode))) {
-               char *sum = file->sum? file->sum : empty_sum;
-               write_buf(f, sum, protocol_version < 21? 2
-                                               : MD4_SUM_LENGTH);
+       if (always_checksum) {
+               char *sum;
+               if (S_ISREG(mode))
+                       sum = file->u.sum;
+               else if (protocol_version < 28) {
+                       /* Prior to 28, we sent a useless set of nulls. */
+                       sum = empty_sum;
+               } else
+                       sum = NULL;
+               if (sum) {
+                       write_buf(f, sum, protocol_version < 21? 2
+                                                       : MD4_SUM_LENGTH);
+               }
        }
 
        strlcpy(lastname, fname, MAXPATHLEN);
-       lastname[MAXPATHLEN - 1] = 0;
 
        io_write_phase = "unknown";
 }
@@ -521,7 +547,7 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
 {
        static time_t modtime;
        static mode_t mode;
-       static DEV64_T rdev;    /* just high bytes in p28 onward */
+       static DEV64_T rdev, rdev_high;
        static DEV64_T dev;
        static uid_t uid;
        static gid_t gid;
@@ -533,16 +559,16 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
 
        if (!fptr) {
                modtime = 0, mode = 0;
-               rdev = 0, dev = 0;
+               rdev = 0, rdev_high = 0, dev = 0;
                uid = 0, gid = 0;
                *lastname = '\0';
                return;
        }
 
-       if (flags & SAME_NAME)
+       if (flags & XMIT_SAME_NAME)
                l1 = read_byte(f);
 
-       if (flags & LONG_NAME)
+       if (flags & XMIT_LONG_NAME)
                l2 = read_int(f);
        else
                l2 = read_byte(f);
@@ -565,13 +591,11 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
        thisname[l1 + l2] = 0;
 
        strlcpy(lastname, thisname, MAXPATHLEN);
-       lastname[MAXPATHLEN - 1] = 0;
 
        clean_fname(thisname);
 
-       if (sanitize_paths) {
+       if (sanitize_paths)
                sanitize_path(thisname, NULL);
-       }
 
        if ((p = strrchr(thisname, '/'))) {
                static char *lastdir;
@@ -591,76 +615,80 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
        if (!file->basename)
                out_of_memory("receive_file_entry 1");
 
-       file->flags = flags;
+       file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
        file->length = read_longint(f);
-       if (!(flags & SAME_TIME))
+       if (!(flags & XMIT_SAME_TIME))
                modtime = (time_t)read_int(f);
        file->modtime = modtime;
-       if (!(flags & SAME_MODE))
+       if (!(flags & XMIT_SAME_MODE))
                mode = from_wire_mode(read_int(f));
        file->mode = mode;
 
        if (preserve_uid) {
-               if (!(flags & SAME_UID))
+               if (!(flags & XMIT_SAME_UID))
                        uid = (uid_t)read_int(f);
                file->uid = uid;
        }
        if (preserve_gid) {
-               if (!(flags & SAME_GID))
+               if (!(flags & XMIT_SAME_GID))
                        gid = (gid_t)read_int(f);
                file->gid = gid;
        }
        if (preserve_devices) {
                if (protocol_version < 28) {
                        if (IS_DEVICE(mode)) {
-                               if (!(flags & SAME_RDEV_pre28))
+                               if (!(flags & XMIT_SAME_RDEV_pre28))
                                        rdev = (DEV64_T)read_int(f);
-                               file->rdev = rdev;
+                               file->u.rdev = rdev;
                        } else
                                rdev = 0;
                } else if (IS_DEVICE(mode)) {
-                       if (!(flags & SAME_HIGH_RDEV)) {
-                               file->rdev = (DEV64_T)read_int(f);
-                               rdev = file->rdev & ~0xFF;
+                       if (!(flags & XMIT_SAME_HIGH_RDEV)) {
+                               rdev = (DEV64_T)read_int(f);
+                               rdev_high = rdev & ~0xFF;
                        } else
-                               file->rdev = rdev | (DEV64_T)read_byte(f);
+                               rdev = rdev_high | (DEV64_T)read_byte(f);
+                       file->u.rdev = rdev;
                }
        }
 
+#if SUPPORT_LINKS
        if (preserve_links && S_ISLNK(mode)) {
-               int l = read_int(f);
-               if (l < 0) {
-                       rprintf(FERROR, "overflow: l=%d\n", l);
+               int len = read_int(f);
+               if (len < 0 || len >= MAXPATHLEN) {
+                       rprintf(FERROR, "overflow: len=%d\n", len);
                        overflow("receive_file_entry");
                }
-               file->link = new_array(char, l + 1);
-               if (!file->link)
+               if (!(file->u.link = new_array(char, len + 1)))
                        out_of_memory("receive_file_entry 2");
-               read_sbuf(f, file->link, l);
+               read_sbuf(f, file->u.link, len);
                if (sanitize_paths)
-                       sanitize_path(file->link, file->dirname);
+                       sanitize_path(file->u.link, file->dirname);
        }
+#endif
+
 #if SUPPORT_HARD_LINKS
-       if (preserve_hard_links && protocol_version < 28
-           && S_ISREG(mode))
-               file->flags |= HAS_INODE_DATA;
-       if (file->flags & HAS_INODE_DATA) {
+       if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
+               flags |= XMIT_HAS_IDEV_DATA;
+       if (flags & XMIT_HAS_IDEV_DATA) {
+               if (!(file->link_u.idev = new(struct idev)))
+                       out_of_memory("file inode data");
                if (protocol_version < 26) {
                        dev = read_int(f);
-                       file->inode = read_int(f);
+                       file->F_INODE = read_int(f);
                } else {
-                       if (!(flags & SAME_DEV))
+                       if (!(flags & XMIT_SAME_DEV))
                                dev = read_longint(f);
-                       file->inode = read_longint(f);
+                       file->F_INODE = read_longint(f);
                }
-               file->dev = dev;
+               file->F_DEV = dev;
        }
 #endif
 
        if (always_checksum) {
                char *sum;
                if (S_ISREG(mode)) {
-                       sum = file->sum = new_array(char, MD4_SUM_LENGTH);
+                       sum = file->u.sum = new_array(char, MD4_SUM_LENGTH);
                        if (!sum)
                                out_of_memory("md4 sum");
                } else if (protocol_version < 28) {
@@ -683,32 +711,6 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
 }
 
 
-/* determine if a file in a different filesstem should be skipped
-   when one_file_system is set. We bascally only want to include
-   the mount points - but they can be hard to find! */
-static int skip_filesystem(char *fname, STRUCT_STAT * st)
-{
-       STRUCT_STAT st2;
-       char *p = strrchr(fname, '/');
-
-       /* skip all but directories */
-       if (!S_ISDIR(st->st_mode))
-               return 1;
-
-       /* if its not a subdirectory then allow */
-       if (!p)
-               return 0;
-
-       *p = 0;
-       if (link_stat(fname, &st2)) {
-               *p = '/';
-               return 0;
-       }
-       *p = '/';
-
-       return (st2.st_dev != filesystem_dev);
-}
-
 #define STRDUP(ap, p)  (ap ? string_area_strdup(ap, p) : strdup(p))
 /* IRIX cc cares that the operands to the ternary have the same type. */
 #define MALLOC(ap, i)  (ap ? (void*) string_area_malloc(ap, i) : malloc(i))
@@ -735,33 +737,35 @@ struct file_struct *make_file(char *fname, struct string_area **ap,
        STRUCT_STAT st;
        char sum[SUM_LENGTH];
        char *p;
-       char cleaned_name[MAXPATHLEN];
-       char linkbuf[MAXPATHLEN];
-       extern int module_id;
+       char thisname[MAXPATHLEN];
+       char linkname[MAXPATHLEN];
+       unsigned short flags = 0;
 
-       strlcpy(cleaned_name, fname, MAXPATHLEN);
-       cleaned_name[MAXPATHLEN - 1] = 0;
-       clean_fname(cleaned_name);
+       if (strlcpy(thisname, fname, sizeof thisname)
+           >= sizeof thisname - flist_dir_len) {
+               rprintf(FINFO, "skipping overly long name: %s\n", fname);
+               return NULL;
+       }
+       clean_fname(thisname);
        if (sanitize_paths)
-               sanitize_path(cleaned_name, NULL);
-       fname = cleaned_name;
+               sanitize_path(thisname, NULL);
 
        memset(sum, 0, SUM_LENGTH);
 
-       if (readlink_stat(fname, &st, linkbuf) != 0) {
+       if (readlink_stat(thisname, &st, linkname) != 0) {
                int save_errno = errno;
                if (errno == ENOENT && exclude_level != NO_EXCLUDES) {
                        /* either symlink pointing nowhere or file that
                         * was removed during rsync run; see if excluded
                         * before reporting an error */
-                       if (check_exclude_file(fname, 0, exclude_level)) {
+                       if (check_exclude_file(thisname, 0, exclude_level)) {
                                /* file is excluded anyway, ignore silently */
                                return NULL;
                        }
                }
                io_error |= IOERR_GENERAL;
                rprintf(FERROR, "readlink %s failed: %s\n",
-                       full_fname(fname), strerror(save_errno));
+                       full_fname(thisname), strerror(save_errno));
                return NULL;
        }
 
@@ -770,45 +774,51 @@ struct file_struct *make_file(char *fname, struct string_area **ap,
                goto skip_excludes;
 
        if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
-               rprintf(FINFO, "skipping directory %s\n", fname);
+               rprintf(FINFO, "skipping directory %s\n", thisname);
                return NULL;
        }
 
        if (one_file_system && st.st_dev != filesystem_dev) {
-               if (skip_filesystem(fname, &st))
+               /* We allow a directory though to preserve the mount point.
+                * However, flag it so that we don't recurse. */
+               if (!S_ISDIR(st.st_mode))
                        return NULL;
+               flags |= FLAG_MOUNT_POINT;
        }
 
-       if (check_exclude_file(fname, S_ISDIR(st.st_mode) != 0, exclude_level))
+       if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
                return NULL;
 
-       if (lp_ignore_nonreadable(module_id) && access(fname, R_OK) != 0)
+       if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
                return NULL;
 
       skip_excludes:
 
-       if (verbose > 2)
-               rprintf(FINFO, "make_file(%s,*,%d)\n", fname, exclude_level);
+       if (verbose > 2) {
+               rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
+                       who_am_i(), thisname, exclude_level);
+       }
 
        file = new(struct file_struct);
        if (!file)
                out_of_memory("make_file");
        memset((char *) file, 0, sizeof(*file));
+       file->flags = flags;
 
-       if ((p = strrchr(fname, '/'))) {
+       if ((p = strrchr(thisname, '/'))) {
                static char *lastdir;
                *p = 0;
-               if (lastdir && strcmp(fname, lastdir) == 0)
+               if (lastdir && strcmp(thisname, lastdir) == 0)
                        file->dirname = lastdir;
                else {
-                       file->dirname = strdup(fname);
+                       file->dirname = strdup(thisname);
                        lastdir = file->dirname;
                }
                file->basename = STRDUP(ap, p + 1);
                *p = '/';
        } else {
                file->dirname = NULL;
-               file->basename = STRDUP(ap, fname);
+               file->basename = STRDUP(ap, thisname);
        }
 
        file->modtime = st.st_mtime;
@@ -816,40 +826,36 @@ struct file_struct *make_file(char *fname, struct string_area **ap,
        file->mode = st.st_mode;
        file->uid = st.st_uid;
        file->gid = st.st_gid;
-       if (preserve_hard_links) {
-               if (protocol_version < 28? S_ISREG(st.st_mode)
-                   : !S_ISDIR(st.st_mode) && st.st_nlink > 1) {
-                       file->dev = st.st_dev;
-                       file->inode = st.st_ino;
-                       file->flags |= HAS_INODE_DATA;
-               }
-       }
+
 #ifdef HAVE_STRUCT_STAT_ST_RDEV
-       file->rdev = st.st_rdev;
+       if (preserve_devices && IS_DEVICE(st.st_mode))
+               file->u.rdev = st.st_rdev;
 #endif
 
 #if SUPPORT_LINKS
        if (S_ISLNK(st.st_mode))
-               file->link = STRDUP(ap, linkbuf);
+               file->u.link = STRDUP(ap, linkname);
+#endif
+
+#if SUPPORT_HARD_LINKS
+       if (preserve_hard_links) {
+               if (protocol_version < 28 ? S_ISREG(st.st_mode)
+                   : !S_ISDIR(st.st_mode) && st.st_nlink > 1) {
+                       if (!(file->link_u.idev = new(struct idev)))
+                               out_of_memory("file inode data");
+                       file->F_DEV = st.st_dev;
+                       file->F_INODE = st.st_ino;
+               }
+       }
 #endif
 
        if (always_checksum && S_ISREG(st.st_mode)) {
-               file->sum = (char*)MALLOC(ap, MD4_SUM_LENGTH);
-               if (!file->sum)
+               if (!(file->u.sum = (char*)MALLOC(ap, MD4_SUM_LENGTH)))
                        out_of_memory("md4 sum");
-               file_checksum(fname, file->sum, st.st_size);
+               file_checksum(thisname, file->u.sum, st.st_size);
        }
 
-       if (flist_dir) {
-               static char *lastdir;
-               if (lastdir && strcmp(lastdir, flist_dir) == 0)
-                       file->basedir = lastdir;
-               else {
-                       file->basedir = strdup(flist_dir);
-                       lastdir = file->basedir;
-               }
-       } else
-               file->basedir = NULL;
+       file->basedir = flist_dir;
 
        if (!S_ISDIR(st.st_mode))
                stats.total_size += st.st_size;
@@ -878,17 +884,17 @@ void send_file_name(int f, struct file_list *flist, char *fname,
        flist_expand(flist);
 
        if (write_batch)
-               file->flags |= FLAG_DELETE;
+               file->flags |= FLAG_TOP_DIR;
 
        if (file->basename[0]) {
                flist->files[flist->count++] = file;
                send_file_entry(file, f, base_flags);
        }
 
-       if (S_ISDIR(file->mode) && recursive) {
-               struct exclude_struct **last_exclude_list =
-                   local_exclude_list;
-               send_directory(f, flist, f_name_to(file, fbuf, sizeof fbuf));
+       if (recursive && S_ISDIR(file->mode)
+           && !(file->flags & FLAG_MOUNT_POINT)) {
+               struct exclude_struct **last_exclude_list = local_exclude_list;
+               send_directory(f, flist, f_name_to(file, fbuf));
                local_exclude_list = last_exclude_list;
                return;
        }
@@ -900,7 +906,7 @@ static void send_directory(int f, struct file_list *flist, char *dir)
        DIR *d;
        struct dirent *di;
        char fname[MAXPATHLEN];
-       int l;
+       unsigned int offset;
        char *p;
 
        d = opendir(dir);
@@ -911,28 +917,27 @@ static void send_directory(int f, struct file_list *flist, char *dir)
                return;
        }
 
-       strlcpy(fname, dir, MAXPATHLEN);
-       l = strlen(fname);
-       if (fname[l - 1] != '/') {
-               if (l == MAXPATHLEN - 1) {
+       offset = strlcpy(fname, dir, MAXPATHLEN);
+       p = fname + offset;
+       if (offset >= MAXPATHLEN || p[-1] != '/') {
+               if (offset >= MAXPATHLEN - 1) {
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR, "skipping long-named directory: %s\n",
                                full_fname(fname));
                        closedir(d);
                        return;
                }
-               strlcat(fname, "/", MAXPATHLEN);
-               l++;
+               *p++ = '/';
+               offset++;
        }
-       p = fname + strlen(fname);
 
        local_exclude_list = NULL;
 
        if (cvs_exclude) {
-               if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN - 1) {
-                       strcpy(p, ".cvsignore");
-                       add_exclude_file(&exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
-               else {
+               if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
+                   < MAXPATHLEN - offset)
+                       add_exclude_file(&local_exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
+               else {
                        io_error |= IOERR_GENERAL;
                        rprintf(FINFO,
                                "cannot cvs-exclude in long-named directory %s\n",
@@ -945,13 +950,19 @@ static void send_directory(int f, struct file_list *flist, char *dir)
                if (dname[0] == '.' && (dname[1] == '\0'
                    || (dname[1] == '.' && dname[2] == '\0')))
                        continue;
-               strlcpy(p, dname, MAXPATHLEN - l);
-               send_file_name(f, flist, fname, recurse, 0);
+               if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
+                       send_file_name(f, flist, fname, recurse, 0);
+               else {
+                       io_error |= IOERR_GENERAL;
+                       rprintf(FINFO,
+                               "cannot send long-named file %s\n",
+                               full_fname(fname));
+               }
        }
        if (errno) {
                io_error |= IOERR_GENERAL;
                rprintf(FERROR, "readdir(%s): (%d) %s\n",
-                   dir, errno, strerror(errno));
+                       dir, errno, strerror(errno));
        }
 
        if (local_exclude_list)
@@ -971,7 +982,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 {
        int l;
        STRUCT_STAT st;
-       char *p, *dir, *olddir;
+       char *p, *dir, olddir[sizeof curr_dir];
        char lastpath[MAXPATHLEN] = "";
        struct file_list *flist;
        int64 start_write;
@@ -987,7 +998,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
        if (f != -1) {
                io_start_buffering_out(f);
                if (filesfrom_fd >= 0) {
-                       if (argv[0] && !push_dir(argv[0], 0)) {
+                       if (argv[0] && !push_dir(argv[0])) {
                                rprintf(FERROR, "push_dir %s failed: %s\n",
                                        full_fname(argv[0]), strerror(errno));
                                exit_cleanup(RERR_FILESELECT);
@@ -1017,8 +1028,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                        if (l == 2 && fname[0] == '.') {
                                /* Turn "./" into just "." rather than "./." */
                                fname[1] = '\0';
-                       } else {
-                               strlcat(fname, ".", MAXPATHLEN);
+                       } else if (l < MAXPATHLEN) {
+                               fname[l++] = '.';
+                               fname[l] = '\0';
                        }
                }
 
@@ -1037,7 +1049,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                }
 
                dir = NULL;
-               olddir = NULL;
+               olddir[0] = '\0';
 
                if (!relative_paths) {
                        p = strrchr(fname, '/');
@@ -1088,26 +1100,36 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                        fname = ".";
 
                if (dir && *dir) {
-                       olddir = push_dir(dir, 1);
+                       static char *lastdir;
+                       static int lastdir_len;
 
-                       if (!olddir) {
+                       strcpy(olddir, curr_dir); /* can't overflow */
+
+                       if (!push_dir(dir)) {
                                io_error |= IOERR_GENERAL;
                                rprintf(FERROR, "push_dir %s failed: %s\n",
                                        full_fname(dir), strerror(errno));
                                continue;
                        }
 
-                       flist_dir = dir;
+                       if (lastdir && strcmp(lastdir, dir) == 0) {
+                               flist_dir = lastdir;
+                               flist_dir_len = lastdir_len;
+                       } else {
+                               flist_dir = lastdir = strdup(dir);
+                               flist_dir_len = lastdir_len = strlen(dir);
+                       }
                }
 
                if (one_file_system)
                        set_filesystem(fname);
 
-               send_file_name(f, flist, fname, recurse, FLAG_DELETE);
+               send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
 
-               if (olddir != NULL) {
+               if (olddir[0]) {
                        flist_dir = NULL;
-                       if (pop_dir(olddir) != 0) {
+                       flist_dir_len = 0;
+                       if (!pop_dir(olddir)) {
                                rprintf(FERROR, "pop_dir %s failed: %s\n",
                                        full_fname(dir), strerror(errno));
                                exit_cleanup(RERR_FILESELECT);
@@ -1115,26 +1137,23 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                }
        }
 
-       if (f != -1)
+       if (f != -1) {
                send_file_entry(NULL, f, 0);
 
-       if (show_filelist_p() && f != -1)
-               finish_filelist_progress(flist);
+               if (show_filelist_p())
+                       finish_filelist_progress(flist);
+       }
 
        clean_flist(flist, 0, 0);
 
-       /* now send the uid/gid list. This was introduced in protocol
-          version 15 */
-       if (f != -1)
+       if (f != -1) {
+               /* Now send the uid/gid list. This was introduced in
+                * protocol version 15 */
                send_uid_list(f);
 
-       /* send the io_error flag */
-       if (f != -1) {
-               extern int module_id;
+               /* send the io_error flag */
                write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
-       }
 
-       if (f != -1) {
                io_end_buffering();
                stats.flist_size = stats.total_written - start_write;
                stats.num_files = flist->count;
@@ -1177,7 +1196,7 @@ struct file_list *recv_file_list(int f)
 
                flist_expand(flist);
 
-               if (protocol_version >= 28 && (flags & EXTENDED_FLAGS))
+               if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
                        flags |= read_byte(f) << 8;
                receive_file_entry(&flist->files[i], flags, f);
 
@@ -1198,23 +1217,23 @@ struct file_list *recv_file_list(int f)
        if (verbose > 2)
                rprintf(FINFO, "received %d names\n", flist->count);
 
-       clean_flist(flist, relative_paths, 1);
-
        if (show_filelist_p())
                finish_filelist_progress(flist);
 
-       /* now recv the uid/gid list. This was introduced in protocol version 15 */
-       if (f != -1)
+       clean_flist(flist, relative_paths, 1);
+
+       if (f != -1) {
+               /* Now send the uid/gid list. This was introduced in
+                * protocol version 15 */
                recv_uid_list(f, flist);
 
-       /* recv the io_error flag */
-       if (f != -1 && !read_batch) {   /* dw-added readbatch */
-               extern int module_id;
-               extern int ignore_errors;
-               if (lp_ignore_errors(module_id) || ignore_errors)
-                       read_int(f);
-               else
-                       io_error |= read_int(f);
+               if (!read_batch) {
+                       /* Recv the io_error flag */
+                       if (lp_ignore_errors(module_id) || ignore_errors)
+                               read_int(f);
+                       else
+                               io_error |= read_int(f);
+               }
        }
 
        if (list_only) {
@@ -1223,7 +1242,6 @@ struct file_list *recv_file_list(int f)
                        list_file_entry(flist->files[i]);
        }
 
-
        if (verbose > 2)
                rprintf(FINFO, "recv_file_list done\n");
 
@@ -1290,10 +1308,12 @@ void free_file(struct file_struct *file)
                return;
        if (file->basename)
                free(file->basename);
-       if (file->link)
-               free(file->link);
-       if (file->sum)
-               free(file->sum);
+       if (!IS_DEVICE(file->mode) && file->u.sum)
+               free(file->u.sum); /* Handles u.link too. */
+#if SUPPORT_HARD_LINKS
+       if (file->link_u.idev)
+               free((char*)file->link_u.idev); /* Handles link_u.links too. */
+#endif
        *file = null_file;
 }
 
@@ -1378,8 +1398,8 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
                        /* Make sure that if we unduplicate '.', that we don't
                         * lose track of a user-specified starting point (or
                         * else deletions will mysteriously fail with -R). */
-                       if (flist->files[i]->flags & FLAG_DELETE)
-                               flist->files[prev_i]->flags |= FLAG_DELETE;
+                       if (flist->files[i]->flags & FLAG_TOP_DIR)
+                               flist->files[prev_i]->flags |= FLAG_TOP_DIR;
                        /* it's not great that the flist knows the semantics of
                         * the file memory usage, but i'd rather not add a flag
                         * byte to that struct.
@@ -1388,8 +1408,7 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
                                flist->files[i][0] = null_file;
                        else
                                free_file(flist->files[i]);
-               }
-               else
+               } else
                        prev_i = i;
        }
 
@@ -1416,8 +1435,9 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
                return;
 
        for (i = 0; i < flist->count; i++) {
-               rprintf(FINFO, "[%ld] i=%d %s %s mode=0%o len=%.0f\n",
-                       (long) getpid(), i,
+               rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f\n",
+                       who_am_i(), i,
+                       NS(flist->files[i]->basedir),
                        NS(flist->files[i]->dirname),
                        NS(flist->files[i]->basename),
                        (int) flist->files[i]->mode,
@@ -1449,14 +1469,12 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
        if (!(c1 = (uchar*)f1->dirname)) {
                state1 = fnc_BASE;
                c1 = (uchar*)f1->basename;
-       }
-       else
+       } else
                state1 = fnc_DIR;
        if (!(c2 = (uchar*)f2->dirname)) {
                state2 = fnc_BASE;
                c2 = (uchar*)f2->basename;
-       }
-       else
+       } else
                state2 = fnc_DIR;
 
        while (1) {
@@ -1499,19 +1517,21 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
 
 
 /* Return a copy of the full filename of a flist entry, using the indicated
- * buffer.
+ * buffer.  No size-checking is done because we checked the size when creating
+ * the file_struct entry.
  */
-char *f_name_to(struct file_struct *f, char *fbuf, int bsize)
+char *f_name_to(struct file_struct *f, char *fbuf)
 {
        if (!f || !f->basename)
                return NULL;
 
        if (f->dirname) {
-               int off = strlcpy(fbuf, f->dirname, bsize);
-               off += strlcpy(fbuf + off, "/", bsize - off);
-               strlcpy(fbuf + off, f->basename, bsize - off);
+               int len = strlen(f->dirname);
+               memcpy(fbuf, f->dirname, len);
+               fbuf[len] = '/';
+               strcpy(fbuf + len + 1, f->basename);
        } else
-               strlcpy(fbuf, f->basename, bsize);
+               strcpy(fbuf, f->basename);
        return fbuf;
 }
 
@@ -1525,5 +1545,5 @@ char *f_name(struct file_struct *f)
 
        n = (n + 1) % (sizeof names / sizeof names[0]);
 
-       return f_name_to(f, names[n], sizeof names[0]);
+       return f_name_to(f, names[n]);
 }