X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/7b6fa00ff8abf063dae4a974fc824d430d228d14..f31514adb780899d886df63edd79ac3d48363f2f:/flist.c diff --git a/flist.c b/flist.c index 87a2ba79..aa1efac3 100644 --- a/flist.c +++ b/flist.c @@ -1,39 +1,36 @@ /* - Copyright (C) Andrew Tridgell 1996 - Copyright (C) Paul Mackerras 1996 - Copyright (C) 2001, 2002 by Martin Pool - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/** @file flist.c - * Generate and receive file lists + * Generate and receive file lists. * - * @sa http://lists.samba.org/pipermail/rsync/2000-June/002351.html + * Copyright (C) 1996 Andrew Tridgell + * Copyright (C) 1996 Paul Mackerras + * Copyright (C) 2001, 2002 Martin Pool + * Copyright (C) 2002-2007 Wayne Davison * - **/ + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ #include "rsync.h" +#include "rounding.h" +#include "io.h" extern int verbose; -extern int dry_run; extern int list_only; extern int am_root; extern int am_server; extern int am_daemon; extern int am_sender; +extern int inc_recurse; extern int do_progress; extern int always_checksum; extern int module_id; @@ -43,22 +40,27 @@ extern int recurse; extern int xfer_dirs; extern int filesfrom_fd; extern int one_file_system; +extern int copy_dirlinks; extern int keep_dirlinks; +extern int preserve_acls; +extern int preserve_xattrs; extern int preserve_links; extern int preserve_hard_links; -extern int preserve_perms; extern int preserve_devices; +extern int preserve_specials; extern int preserve_uid; extern int preserve_gid; 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; extern int copy_links; extern int copy_unsafe_links; extern int protocol_version; extern int sanitize_paths; -extern int orig_umask; extern struct stats stats; -extern struct file_list *the_file_list; extern char curr_dir[MAXPATHLEN]; @@ -70,39 +72,55 @@ extern struct filter_list_struct server_filter_list; int io_error; int checksum_len; dev_t filesystem_dev; /* used to implement -x */ -unsigned int file_struct_len; -static char empty_sum[MD4_SUM_LENGTH]; -static int flist_count_offset; +struct file_list *cur_flist, *first_flist, *dir_flist; +int send_dir_ndx = -1, send_dir_depth = 0; +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 flist_eof = 0; /* all the file-lists are now known */ + +/* The tmp_* vars are used as a cache area by make_file() to store data + * that the sender doesn't need to remember in its file list. The data + * 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; +#endif +static char tmp_sum[MAX_DIGEST_LEN]; + +static char empty_sum[MAX_DIGEST_LEN]; +static int flist_count_offset; /* for --delete --progress */ static void clean_flist(struct file_list *flist, int strip_root, int no_dups); static void output_flist(struct file_list *flist); void init_flist(void) { - struct file_struct f; - - /* Figure out how big the file_struct is without trailing padding */ - file_struct_len = offsetof(struct file_struct, flags) + sizeof f.flags; - checksum_len = protocol_version < 21 ? 2 : MD4_SUM_LENGTH; + if (verbose > 4) { + rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n", + (int)FILE_STRUCT_LEN, (int)EXTRA_LEN); + } + checksum_len = protocol_version < 21 ? 2 + : protocol_version < 30 ? MD4_DIGEST_LEN + : MD5_DIGEST_LEN; } static int show_filelist_p(void) { - return verbose && xfer_dirs && !am_server; + return verbose && xfer_dirs && !am_server && !inc_recurse; } static void start_filelist_progress(char *kind) { - rprintf(FINFO, "%s ... ", kind); + rprintf(FCLIENT, "%s ... ", kind); if (verbose > 1 || do_progress) - rprintf(FINFO, "\n"); + rprintf(FCLIENT, "\n"); rflush(FINFO); } static void emit_filelist_progress(int count) { - rprintf(FINFO, " %d files...\r", count); + rprintf(FCLIENT, " %d files...\r", count); } static void maybe_emit_filelist_progress(int count) @@ -128,86 +146,80 @@ void show_flist_stats(void) static void list_file_entry(struct file_struct *f) { - char perms[11]; + char permbuf[PERMSTRING_SIZE]; + double len; - if (!f->basename) { + if (!F_IS_ACTIVE(f)) { /* this can happen if duplicate names were removed */ return; } - permstring(perms, f->mode); + permstring(permbuf, f->mode); + len = F_LENGTH(f); + + /* TODO: indicate '+' if the entry has an ACL. */ #ifdef 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, NULL), f->u.link); + permbuf, len, timestring(f->modtime), + f_name(f, NULL), F_SYMLINK(f)); } else #endif { rprintf(FINFO, "%s %11.0f %s %s\n", - perms, - (double)f->length, timestring(f->modtime), + permbuf, len, timestring(f->modtime), f_name(f, NULL)); } } -/** - * Stat either a symlink or its referent, depending on the settings of - * copy_links, copy_unsafe_links, etc. +/* Stat either a symlink or its referent, depending on the settings of + * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success. * - * @retval -1 on error + * If path is the name of a symlink, then the linkbuf buffer (which must hold + * MAXPATHLEN chars) will be set to the symlink's target string. * - * @retval 0 for success - * - * @post If @p path is a symlink, then @p linkbuf (of size @c - * MAXPATHLEN) contains the symlink target. - * - * @post @p buffer contains information about the link or the - * referrent as appropriate, if they exist. - **/ -static int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf) + * The stat structure pointed to by stp will contain information about the + * link or the referent as appropriate, if they exist. */ +static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf) { #ifdef SUPPORT_LINKS - if (copy_links) - return do_stat(path, buffer); - if (link_stat(path, buffer, 0) < 0) + if (link_stat(path, stp, copy_dirlinks) < 0) return -1; - if (S_ISLNK(buffer->st_mode)) { - int l = readlink((char *)path, linkbuf, MAXPATHLEN - 1); - if (l == -1) + if (S_ISLNK(stp->st_mode)) { + int llen = readlink(path, linkbuf, MAXPATHLEN - 1); + if (llen < 0) return -1; - linkbuf[l] = 0; + linkbuf[llen] = '\0'; if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) { if (verbose > 1) { rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n", path, linkbuf); } - return do_stat(path, buffer); + return do_stat(path, stp); } } return 0; #else - return do_stat(path, buffer); + return do_stat(path, stp); #endif } -int link_stat(const char *path, STRUCT_STAT *buffer, int follow_dirlinks) +int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks) { #ifdef SUPPORT_LINKS if (copy_links) - return do_stat(path, buffer); - if (do_lstat(path, buffer) < 0) + return do_stat(path, stp); + if (do_lstat(path, stp) < 0) return -1; - if (follow_dirlinks && S_ISLNK(buffer->st_mode)) { + if (follow_dirlinks && S_ISLNK(stp->st_mode)) { STRUCT_STAT st; if (do_stat(path, &st) == 0 && S_ISDIR(st.st_mode)) - *buffer = st; + *stp = st; } return 0; #else - return do_stat(path, buffer); + return do_stat(path, stp); #endif } @@ -245,23 +257,27 @@ static int is_excluded(char *fname, int is_dir, int filter_level) static int to_wire_mode(mode_t mode) { #ifdef SUPPORT_LINKS - if (S_ISLNK(mode) && (_S_IFLNK != 0120000)) +#if _S_IFLNK != 0120000 + if (S_ISLNK(mode)) return (mode & ~(_S_IFMT)) | 0120000; #endif - return (int)mode; +#endif + return mode; } static mode_t from_wire_mode(int mode) { - if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000)) +#if _S_IFLNK != 0120000 + if ((mode & (_S_IFMT)) == 0120000) return (mode & ~(_S_IFMT)) | _S_IFLNK; - return (mode_t)mode; +#endif + return mode; } -static void send_directory(int f, struct file_list *flist, - char *fbuf, int len); +static void send_directory(int f, struct file_list *flist, int ndx, + char *fbuf, int len, int flags); -static char *flist_dir; +static const char *flist_dir, *orig_dir; static int flist_dir_len; @@ -294,7 +310,7 @@ void flist_expand(struct file_list *flist) flist->malloced); if (verbose >= 2 && flist->malloced != FLIST_START) { - rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n", + rprintf(FCLIENT, "[%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" : ""); @@ -306,9 +322,35 @@ void flist_expand(struct file_list *flist) out_of_memory("flist_expand"); } -static void send_file_entry(struct file_struct *file, int f) +int push_flist_dir(const char *dir, int len) +{ + if (dir == flist_dir) + return 1; + + if (!orig_dir) + orig_dir = strdup(curr_dir); + + if (flist_dir && !pop_dir(orig_dir)) { + rsyserr(FERROR, errno, "pop_dir %s failed", + full_fname(orig_dir)); + exit_cleanup(RERR_FILESELECT); + } + + if (dir && !push_dir(dir, 0)) { + io_error |= IOERR_GENERAL; + rsyserr(FERROR, errno, "push_dir %s failed in %s", + full_fname(dir), curr_dir); + return 0; + } + + flist_dir = dir; + flist_dir_len = len >= 0 ? len : dir ? (int)strlen(dir) : 0; + + return 1; +} + +static void send_file_entry(int f, struct file_struct *file, int ndx) { - unsigned short flags; static time_t modtime; static mode_t mode; static int64 dev; @@ -316,73 +358,86 @@ static void send_file_entry(struct file_struct *file, int f) static uint32 rdev_major; static uid_t uid; static gid_t gid; + static char *user_name, *group_name; static char lastname[MAXPATHLEN]; char fname[MAXPATHLEN]; + int first_hlink_ndx = -1; int l1, l2; - - if (f < 0) - return; - - if (!file) { - write_byte(f, 0); - modtime = 0, mode = 0; - dev = 0, rdev = makedev(0, 0); - rdev_major = 0; - uid = 0, gid = 0; - *lastname = '\0'; - return; - } - - io_write_phase = "send_file_entry"; + int flags; f_name(file, fname); - flags = file->flags & XMIT_TOP_DIR; + flags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */ if (file->mode == mode) flags |= XMIT_SAME_MODE; else mode = file->mode; - if (preserve_devices) { + if ((preserve_devices && IS_DEVICE(mode)) + || (preserve_specials && IS_SPECIAL(mode))) { if (protocol_version < 28) { - if (IS_DEVICE(mode)) { - if (file->u.rdev == rdev) - flags |= XMIT_SAME_RDEV_pre28; - else - rdev = file->u.rdev; - } else - rdev = makedev(0, 0); - } else if (IS_DEVICE(mode)) { - rdev = file->u.rdev; + if (tmp_rdev == rdev) + flags |= XMIT_SAME_RDEV_pre28; + else + rdev = tmp_rdev; + } else { + rdev = tmp_rdev; if ((uint32)major(rdev) == rdev_major) flags |= XMIT_SAME_RDEV_MAJOR; else rdev_major = major(rdev); - if ((uint32)minor(rdev) <= 0xFFu) - flags |= XMIT_RDEV_MINOR_IS_SMALL; + if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu) + flags |= XMIT_RDEV_MINOR_8_pre30; + } + } else if (protocol_version < 28) + rdev = MAKEDEV(0, 0); + if (preserve_uid) { + if (F_UID(file) == uid && *lastname) + flags |= XMIT_SAME_UID; + else { + uid = F_UID(file); + if (preserve_uid && !numeric_ids) { + user_name = add_uid(uid); + if (inc_recurse && user_name) + flags |= XMIT_USER_NAME_FOLLOWS; + } + } + } + if (preserve_gid) { + if (F_GID(file) == gid && *lastname) + flags |= XMIT_SAME_GID; + else { + gid = F_GID(file); + if (preserve_gid && !numeric_ids) { + group_name = add_gid(gid); + if (inc_recurse && group_name) + flags |= XMIT_GROUP_NAME_FOLLOWS; + } } } - if (file->uid == uid) - flags |= XMIT_SAME_UID; - else - uid = file->uid; - if (file->gid == gid) - flags |= XMIT_SAME_GID; - else - gid = file->gid; if (file->modtime == modtime) flags |= XMIT_SAME_TIME; else modtime = file->modtime; #ifdef SUPPORT_HARD_LINKS - if (file->link_u.idev) { - if (file->F_DEV == dev) { - if (protocol_version >= 28) - flags |= XMIT_SAME_DEV; - } else - dev = file->F_DEV; - flags |= XMIT_HAS_IDEV_DATA; + if (tmp_dev != 0) { + if (protocol_version >= 30) { + struct idev_node *np = idev_node(tmp_dev, tmp_ino); + first_hlink_ndx = (int32)(long)np->data - 1; + if (first_hlink_ndx < 0) { + np->data = (void*)(long)(ndx + 1); + flags |= XMIT_HLINK_FIRST; + } + flags |= XMIT_HLINKED; + } else { + if (tmp_dev == dev) { + if (protocol_version >= 28) + flags |= XMIT_SAME_DEV_pre30; + } else + dev = tmp_dev; + flags |= XMIT_HLINKED; + } } #endif @@ -405,8 +460,7 @@ static void send_file_entry(struct file_struct *file, int f) flags |= XMIT_TOP_DIR; if ((flags & 0xFF00) || !flags) { flags |= XMIT_EXTENDED_FLAGS; - write_byte(f, flags); - write_byte(f, flags >> 8); + write_shortint(f, flags); } else write_byte(f, flags); } else { @@ -417,34 +471,56 @@ static void send_file_entry(struct file_struct *file, int f) if (flags & XMIT_SAME_NAME) write_byte(f, l1); if (flags & XMIT_LONG_NAME) - write_int(f, l2); + write_varint30(f, l2); else write_byte(f, l2); write_buf(f, fname + l1, l2); - write_longint(f, file->length); + if (first_hlink_ndx >= 0) { + write_varint30(f, first_hlink_ndx); + goto the_end; + } + + write_longint(f, F_LENGTH(file)); if (!(flags & XMIT_SAME_TIME)) write_int(f, modtime); if (!(flags & XMIT_SAME_MODE)) write_int(f, to_wire_mode(mode)); if (preserve_uid && !(flags & XMIT_SAME_UID)) { - if (!numeric_ids) - add_uid(uid); - write_int(f, uid); + if (protocol_version < 30) + write_int(f, uid); + else { + write_varint(f, uid); + if (flags & XMIT_USER_NAME_FOLLOWS) { + int len = strlen(user_name); + write_byte(f, len); + write_buf(f, user_name, len); + } + } } if (preserve_gid && !(flags & XMIT_SAME_GID)) { - if (!numeric_ids) - add_gid(gid); - write_int(f, gid); + if (protocol_version < 30) + write_int(f, gid); + else { + write_varint(f, gid); + if (flags & XMIT_GROUP_NAME_FOLLOWS) { + int len = strlen(group_name); + write_byte(f, len); + write_buf(f, group_name, len); + } + } } - if (preserve_devices && IS_DEVICE(mode)) { + if ((preserve_devices && IS_DEVICE(mode)) + || (preserve_specials && IS_SPECIAL(mode))) { if (protocol_version < 28) { if (!(flags & XMIT_SAME_RDEV_pre28)) write_int(f, (int)rdev); } else { if (!(flags & XMIT_SAME_RDEV_MAJOR)) - write_int(f, major(rdev)); - if (flags & XMIT_RDEV_MINOR_IS_SMALL) + write_varint30(f, major(rdev)); + if (protocol_version >= 30) + write_varint(f, minor(rdev)); + else if (flags & XMIT_RDEV_MINOR_8_pre30) write_byte(f, minor(rdev)); else write_int(f, minor(rdev)); @@ -453,31 +529,32 @@ static void send_file_entry(struct file_struct *file, int f) #ifdef SUPPORT_LINKS if (preserve_links && S_ISLNK(mode)) { - int len = strlen(file->u.link); - write_int(f, len); - write_buf(f, file->u.link, len); + const char *sl = F_SYMLINK(file); + int len = strlen(sl); + write_varint30(f, len); + write_buf(f, sl, len); } #endif #ifdef SUPPORT_HARD_LINKS - if (flags & XMIT_HAS_IDEV_DATA) { + if (tmp_dev != 0 && protocol_version < 30) { if (protocol_version < 26) { /* 32-bit dev_t and ino_t */ - write_int(f, dev); - write_int(f, file->F_INODE); + write_int(f, (int32)dev); + write_int(f, (int32)tmp_ino); } else { /* 64-bit dev_t and ino_t */ - if (!(flags & XMIT_SAME_DEV)) + if (!(flags & XMIT_SAME_DEV_pre30)) write_longint(f, dev); - write_longint(f, file->F_INODE); + write_longint(f, tmp_ino); } } #endif if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) { - char *sum; + const char *sum; if (S_ISREG(mode)) - sum = file->u.sum; + sum = tmp_sum; else { /* Prior to 28, we sent a useless set of nulls. */ sum = empty_sum; @@ -485,13 +562,15 @@ static void send_file_entry(struct file_struct *file, int f) write_buf(f, sum, checksum_len); } + the_end: strlcpy(lastname, fname, MAXPATHLEN); - io_write_phase = "unknown"; + if (S_ISREG(mode) || S_ISLNK(mode)) + stats.total_size += F_LENGTH(file); } -static struct file_struct *receive_file_entry(struct file_list *flist, - unsigned short flags, int f) +static struct file_struct *recv_file_entry(struct file_list *flist, + int flags, int f) { static time_t modtime; static mode_t mode; @@ -506,35 +585,27 @@ static struct file_struct *receive_file_entry(struct file_list *flist, static int in_del_hier = 0; char thisname[MAXPATHLEN]; unsigned int l1 = 0, l2 = 0; - int alloc_len, basename_len, dirname_len, linkname_len, sum_len; + int alloc_len, basename_len, linkname_len; + int extra_len = file_extra_cnt * EXTRA_LEN; + int first_hlink_ndx = -1; OFF_T file_length; - char *basename, *dirname, *bp; + const char *basename; + char *bp; struct file_struct *file; - if (!flist) { - modtime = 0, mode = 0; - dev = 0, rdev = makedev(0, 0); - rdev_major = 0; - uid = 0, gid = 0; - *lastname = '\0'; - lastdir_len = -1; - in_del_hier = 0; - return NULL; - } - if (flags & XMIT_SAME_NAME) l1 = read_byte(f); if (flags & XMIT_LONG_NAME) - l2 = read_int(f); + l2 = read_varint30(f); else l2 = read_byte(f); if (l2 >= MAXPATHLEN - l1) { rprintf(FERROR, - "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n", - flags, l1, l2, lastname); - overflow_exit("receive_file_entry"); + "overflow: flags=0x%x l1=%d l2=%d lastname=%s [%s]\n", + flags, l1, l2, lastname, who_am_i()); + overflow_exit("recv_file_entry"); } strlcpy(thisname, lastname, l1 + 1); @@ -546,23 +617,54 @@ static struct file_struct *receive_file_entry(struct file_list *flist, clean_fname(thisname, 0); if (sanitize_paths) - sanitize_path(thisname, thisname, "", 0); + sanitize_path(thisname, thisname, "", 0, NULL); if ((basename = strrchr(thisname, '/')) != NULL) { - dirname_len = ++basename - thisname; /* counts future '\0' */ - if (lastdir_len == dirname_len - 1 - && strncmp(thisname, lastdir, lastdir_len) == 0) { - dirname = lastdir; - dirname_len = 0; /* indicates no copy is needed */ - } else - dirname = thisname; - } else { + int len = basename++ - thisname; + if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) { + lastdir = new_array(char, len + 1); + memcpy(lastdir, thisname, len); + lastdir[len] = '\0'; + lastdir_len = len; + lastdir_depth = count_dir_elements(lastdir); + } + } else basename = thisname; - dirname = NULL; - dirname_len = 0; - } basename_len = strlen(basename) + 1; /* count the '\0' */ +#ifdef SUPPORT_HARD_LINKS + if (protocol_version >= 30 + && BITS_SETnUNSET(flags, XMIT_HLINKED, XMIT_HLINK_FIRST)) { + struct file_struct *first; + first_hlink_ndx = read_varint30(f); + if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->count) { + rprintf(FERROR, + "hard-link reference out of range: %d (%d)\n", + first_hlink_ndx, flist->count); + exit_cleanup(RERR_PROTOCOL); + } + first = flist->files[first_hlink_ndx]; + file_length = F_LENGTH(first); + modtime = first->modtime; + mode = first->mode; + if (preserve_uid) + uid = F_UID(first); + if (preserve_gid) + gid = F_GID(first); + if ((preserve_devices && IS_DEVICE(mode)) + || (preserve_specials && IS_SPECIAL(mode))) { + uint32 *devp = F_RDEV_P(first); + rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)); + extra_len += 2 * EXTRA_LEN; + } + if (preserve_links && S_ISLNK(mode)) + linkname_len = strlen(F_SYMLINK(first)) + 1; + else + linkname_len = 0; + goto create_object; + } +#endif + file_length = read_longint(f); if (!(flags & XMIT_SAME_TIME)) modtime = (time_t)read_int(f); @@ -572,150 +674,228 @@ static struct file_struct *receive_file_entry(struct file_list *flist, if (chmod_modes && !S_ISLNK(mode)) mode = tweak_mode(mode, chmod_modes); - if (preserve_uid && !(flags & XMIT_SAME_UID)) - uid = (uid_t)read_int(f); - if (preserve_gid && !(flags & XMIT_SAME_GID)) - gid = (gid_t)read_int(f); + if (preserve_uid && !(flags & XMIT_SAME_UID)) { + if (protocol_version < 30) + uid = (uid_t)read_int(f); + else { + uid = (uid_t)read_varint(f); + if (flags & XMIT_USER_NAME_FOLLOWS) + uid = recv_user_name(f, uid); + else if (inc_recurse && am_root && !numeric_ids) + uid = match_uid(uid); + } + } + if (preserve_gid && !(flags & XMIT_SAME_GID)) { + if (protocol_version < 30) + gid = (gid_t)read_int(f); + else { + gid = (gid_t)read_varint(f); + if (flags & XMIT_GROUP_NAME_FOLLOWS) + gid = recv_group_name(f, gid); + else if (inc_recurse && (!am_root || !numeric_ids)) + gid = match_gid(gid); + } + } - if (preserve_devices) { + if ((preserve_devices && IS_DEVICE(mode)) + || (preserve_specials && IS_SPECIAL(mode))) { if (protocol_version < 28) { - if (IS_DEVICE(mode)) { - if (!(flags & XMIT_SAME_RDEV_pre28)) - rdev = (dev_t)read_int(f); - } else - rdev = makedev(0, 0); - } else if (IS_DEVICE(mode)) { + if (!(flags & XMIT_SAME_RDEV_pre28)) + rdev = (dev_t)read_int(f); + } else { uint32 rdev_minor; if (!(flags & XMIT_SAME_RDEV_MAJOR)) - rdev_major = read_int(f); - if (flags & XMIT_RDEV_MINOR_IS_SMALL) + rdev_major = read_varint30(f); + if (protocol_version >= 30) + rdev_minor = read_varint(f); + else if (flags & XMIT_RDEV_MINOR_8_pre30) rdev_minor = read_byte(f); else rdev_minor = read_int(f); - rdev = makedev(rdev_major, rdev_minor); + rdev = MAKEDEV(rdev_major, rdev_minor); } - } + extra_len += 2 * EXTRA_LEN; + file_length = 0; + } else if (protocol_version < 28) + rdev = MAKEDEV(0, 0); #ifdef SUPPORT_LINKS if (preserve_links && S_ISLNK(mode)) { - linkname_len = read_int(f) + 1; /* count the '\0' */ + linkname_len = read_varint30(f) + 1; /* count the '\0' */ if (linkname_len <= 0 || linkname_len > MAXPATHLEN) { rprintf(FERROR, "overflow: linkname_len=%d\n", linkname_len - 1); - overflow_exit("receive_file_entry"); + overflow_exit("recv_file_entry"); } } else #endif linkname_len = 0; - sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0; +#ifdef SUPPORT_HARD_LINKS + create_object: + if (preserve_hard_links) { + if (protocol_version < 28 && S_ISREG(mode)) + flags |= XMIT_HLINKED; + if (flags & XMIT_HLINKED) + extra_len += EXTRA_LEN; + } +#endif + +#ifdef SUPPORT_ACLS + /* We need one or two index int32s when we're preserving ACLs. */ + if (preserve_acls) + extra_len += (S_ISDIR(mode) ? 2 : 1) * EXTRA_LEN; +#endif + + if (always_checksum && S_ISREG(mode)) + extra_len += SUM_EXTRA_CNT * EXTRA_LEN; + + if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) + extra_len += EXTRA_LEN; - alloc_len = file_struct_len + dirname_len + basename_len - + linkname_len + sum_len; - bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry"); +#if EXTRA_ROUNDING > 0 + if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN)) + extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN; +#endif + if (inc_recurse && S_ISDIR(mode)) { + if (one_file_system) { + /* Room to save the dir's device for -x */ + extra_len += 2 * EXTRA_LEN; + } + flist = dir_flist; + } + + alloc_len = FILE_STRUCT_LEN + extra_len + basename_len + + linkname_len; + bp = pool_alloc(flist->file_pool, alloc_len, "recv_file_entry"); + + memset(bp, 0, extra_len + FILE_STRUCT_LEN); + bp += extra_len; file = (struct file_struct *)bp; - memset(bp, 0, file_struct_len); - bp += file_struct_len; + bp += FILE_STRUCT_LEN; + + memcpy(bp, basename, basename_len); + bp += basename_len + linkname_len; /* skip space for symlink too */ +#ifdef SUPPORT_HARD_LINKS + if (flags & XMIT_HLINKED) + file->flags |= FLAG_HLINKED; +#endif file->modtime = modtime; - file->length = file_length; + file->len32 = (uint32)file_length; + if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) { + file->flags |= FLAG_LENGTH64; + OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32); + } file->mode = mode; - file->uid = uid; - file->gid = gid; - - if (dirname_len) { - file->dirname = lastdir = bp; - lastdir_len = dirname_len - 1; - memcpy(bp, dirname, dirname_len - 1); - bp += dirname_len; - bp[-1] = '\0'; - lastdir_depth = count_dir_elements(lastdir); - file->dir.depth = lastdir_depth + 1; - } else if (dirname) { - file->dirname = dirname; /* we're reusing lastname */ - file->dir.depth = lastdir_depth + 1; + if (preserve_uid) + F_OWNER(file) = uid; + if (preserve_gid) + F_GROUP(file) = gid; + + if (basename != thisname) { + file->dirname = lastdir; + F_DEPTH(file) = lastdir_depth + 1; } else - file->dir.depth = 1; + F_DEPTH(file) = 1; if (S_ISDIR(mode)) { if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */ - file->dir.depth--; + F_DEPTH(file)--; if (flags & XMIT_TOP_DIR) { in_del_hier = recurse; - del_hier_name_len = file->dir.depth == 0 ? 0 : l1 + l2; + del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2; if (relative_paths && del_hier_name_len > 2 && lastname[del_hier_name_len-1] == '.' && lastname[del_hier_name_len-2] == '/') del_hier_name_len -= 2; - file->flags |= FLAG_TOP_DIR | FLAG_DEL_HERE; + file->flags |= FLAG_TOP_DIR | FLAG_XFER_DIR; } else if (in_del_hier) { if (!relative_paths || !del_hier_name_len || (l1 >= del_hier_name_len && lastname[del_hier_name_len] == '/')) - file->flags |= FLAG_DEL_HERE; + file->flags |= FLAG_XFER_DIR; else in_del_hier = 0; } } - file->basename = bp; - memcpy(bp, basename, basename_len); - bp += basename_len; - - if (preserve_devices && IS_DEVICE(mode)) - file->u.rdev = rdev; + if ((preserve_devices && IS_DEVICE(mode)) + || (preserve_specials && IS_SPECIAL(mode))) { + uint32 *devp = F_RDEV_P(file); + DEV_MAJOR(devp) = major(rdev); + DEV_MINOR(devp) = minor(rdev); + } #ifdef SUPPORT_LINKS if (linkname_len) { - file->u.link = bp; - read_sbuf(f, bp, linkname_len - 1); + bp = (char*)file->basename + basename_len; + if (first_hlink_ndx >= 0) { + struct file_struct *first = flist->files[first_hlink_ndx]; + memcpy(bp, F_SYMLINK(first), linkname_len); + } else + read_sbuf(f, bp, linkname_len - 1); if (sanitize_paths) - sanitize_path(bp, bp, "", lastdir_depth); - bp += linkname_len; + sanitize_path(bp, bp, "", lastdir_depth, NULL); } #endif #ifdef SUPPORT_HARD_LINKS - if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode)) - flags |= XMIT_HAS_IDEV_DATA; - if (flags & XMIT_HAS_IDEV_DATA) { - int64 inode; - if (protocol_version < 26) { - dev = read_int(f); - inode = read_int(f); + if (preserve_hard_links && flags & XMIT_HLINKED) { + if (protocol_version >= 30) { + F_HL_GNUM(file) = flags & XMIT_HLINK_FIRST + ? flist->count : first_hlink_ndx; } else { - if (!(flags & XMIT_SAME_DEV)) - dev = read_longint(f); - inode = read_longint(f); - } - if (flist->hlink_pool) { - file->link_u.idev = pool_talloc(flist->hlink_pool, - struct idev, 1, "inode_table"); - file->F_INODE = inode; - file->F_DEV = dev; + static int32 cnt = 0; + struct idev_node *np; + int64 ino; + int32 ndx; + if (protocol_version < 26) { + dev = read_int(f); + ino = read_int(f); + } else { + if (!(flags & XMIT_SAME_DEV_pre30)) + dev = read_longint(f); + ino = read_longint(f); + } + np = idev_node(dev, ino); + ndx = (int32)(long)np->data - 1; + if (ndx < 0) { + ndx = cnt++; + np->data = (void*)(long)cnt; + } + F_HL_GNUM(file) = ndx; } } #endif - if (always_checksum && (sum_len || protocol_version < 28)) { - char *sum; - if (sum_len) { - file->u.sum = sum = bp; - /*bp += sum_len;*/ - } else { + if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) { + if (S_ISREG(mode)) + bp = (char*)F_SUM(file); + else { /* Prior to 28, we get a useless set of nulls. */ - sum = empty_sum; + bp = tmp_sum; } - read_buf(f, sum, checksum_len); + if (first_hlink_ndx >= 0) { + struct file_struct *first = flist->files[first_hlink_ndx]; + memcpy(bp, F_SUM(first), checksum_len); + } else + read_buf(f, bp, checksum_len); } - if (!preserve_perms) { - /* set an appropriate set of permissions based on original - * permissions and umask. This emulates what GNU cp does */ - file->mode &= ~orig_umask; - } +#ifdef SUPPORT_ACLS + if (preserve_acls && !S_ISLNK(mode)) + receive_acl(file, f); +#endif +#ifdef SUPPORT_XATTRS + if (preserve_xattrs) + receive_xattr(file, f ); +#endif + + if (S_ISREG(mode) || S_ISLNK(mode)) + stats.total_size += file_length; return file; } @@ -735,22 +915,19 @@ static struct file_struct *receive_file_entry(struct file_list *flist, * statting directories if we're not recursing, but this is not a very * important case. Some systems may not have d_type. **/ -struct file_struct *make_file(char *fname, struct file_list *flist, - STRUCT_STAT *stp, unsigned short flags, - int filter_level) +struct file_struct *make_file(const char *fname, struct file_list *flist, + STRUCT_STAT *stp, int flags, int filter_level) { static char *lastdir; static int lastdir_len = -1; struct file_struct *file; STRUCT_STAT st; - char sum[SUM_LENGTH]; char thisname[MAXPATHLEN]; char linkname[MAXPATHLEN]; - int alloc_len, basename_len, dirname_len, linkname_len, sum_len; - char *basename, *dirname, *bp; - - if (!flist || !flist->count) /* Ignore lastdir when invalid. */ - lastdir_len = -1; + int alloc_len, basename_len, linkname_len; + int extra_len = file_extra_cnt * EXTRA_LEN; + const char *basename; + char *bp; if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname - flist_dir_len) { @@ -759,18 +936,21 @@ struct file_struct *make_file(char *fname, struct file_list *flist, } clean_fname(thisname, 0); if (sanitize_paths) - sanitize_path(thisname, thisname, "", 0); - - memset(sum, 0, SUM_LENGTH); + sanitize_path(thisname, thisname, "", 0, NULL); - if (stp && S_ISDIR(stp->st_mode)) + if (stp && S_ISDIR(stp->st_mode)) { st = *stp; /* Needed for "symlink/." with --relative. */ - else if (readlink_stat(thisname, &st, linkname) != 0) { + *linkname = '\0'; /* make IBM code checker happy */ + } else if (readlink_stat(thisname, &st, linkname) != 0) { int save_errno = errno; /* See if file is excluded before reporting an error. */ if (filter_level != NO_FILTERS - && is_excluded(thisname, 0, filter_level)) + && (is_excluded(thisname, 0, filter_level) + || is_excluded(thisname, 1, filter_level))) { + if (ignore_perishable && save_errno != ENOENT) + non_perishable_cnt++; return NULL; + } if (save_errno == ENOENT) { #ifdef SUPPORT_LINKS /* Avoid "vanished" error if symlink points nowhere. */ @@ -805,7 +985,7 @@ struct file_struct *make_file(char *fname, struct file_list *flist, return NULL; } - /* We only care about directories because we need to avoid recursing + /* -x only affects directories because we need to avoid recursing * into a mount-point directory, not to avoid copying a symlinked * file if -L (or similar) was specified. */ if (one_file_system && st.st_dev != filesystem_dev @@ -817,11 +997,14 @@ struct file_struct *make_file(char *fname, struct file_list *flist, } return NULL; } - flags |= FLAG_MOUNT_POINT; + flags |= FLAG_MOUNT_DIR; } - if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) + if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) { + if (ignore_perishable) + non_perishable_cnt++; return NULL; + } if (lp_ignore_nonreadable(module_id)) { #ifdef SUPPORT_LINKS @@ -833,24 +1016,29 @@ struct file_struct *make_file(char *fname, struct file_list *flist, skip_filters: + /* Only divert a directory in the main transfer. */ + if (flist && flist->prev && S_ISDIR(st.st_mode) + && flags & FLAG_DIVERT_DIRS) { + flist = dir_flist; + /* Room for parent/sibling/next-child info. */ + extra_len += 3 * EXTRA_LEN; + } + if (verbose > 2) { rprintf(FINFO, "[%s] make_file(%s,*,%d)\n", who_am_i(), thisname, filter_level); } if ((basename = strrchr(thisname, '/')) != NULL) { - dirname_len = ++basename - thisname; /* counts future '\0' */ - if (lastdir_len == dirname_len - 1 - && strncmp(thisname, lastdir, lastdir_len) == 0) { - dirname = lastdir; - dirname_len = 0; /* indicates no copy is needed */ - } else - dirname = thisname; - } else { + int len = basename++ - thisname; + if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) { + lastdir = new_array(char, len + 1); + memcpy(lastdir, thisname, len); + lastdir[len] = '\0'; + lastdir_len = len; + } + } else basename = thisname; - dirname = NULL; - dirname_len = 0; - } basename_len = strlen(basename) + 1; /* count the '\0' */ #ifdef SUPPORT_LINKS @@ -859,11 +1047,16 @@ struct file_struct *make_file(char *fname, struct file_list *flist, linkname_len = 0; #endif - sum_len = always_checksum && am_sender && S_ISREG(st.st_mode) - ? MD4_SUM_LENGTH : 0; + if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) + extra_len += EXTRA_LEN; - alloc_len = file_struct_len + dirname_len + basename_len - + linkname_len + sum_len; +#if EXTRA_ROUNDING > 0 + if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN)) + extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN; +#endif + + alloc_len = FILE_STRUCT_LEN + extra_len + basename_len + + linkname_len; if (flist) bp = pool_alloc(flist->file_pool, alloc_len, "make_file"); else { @@ -871,70 +1064,60 @@ struct file_struct *make_file(char *fname, struct file_list *flist, out_of_memory("make_file"); } + memset(bp, 0, extra_len + FILE_STRUCT_LEN); + bp += extra_len; file = (struct file_struct *)bp; - memset(bp, 0, file_struct_len); - bp += file_struct_len; + bp += FILE_STRUCT_LEN; - file->flags = flags; - file->modtime = st.st_mtime; - file->length = st.st_size; - file->mode = st.st_mode; - file->uid = st.st_uid; - file->gid = st.st_gid; + memcpy(bp, basename, basename_len); + bp += basename_len + linkname_len; /* skip space for symlink too */ #ifdef SUPPORT_HARD_LINKS - if (flist && flist->hlink_pool) { - if (protocol_version < 28) { - if (S_ISREG(st.st_mode)) - file->link_u.idev = pool_talloc( - flist->hlink_pool, struct idev, 1, - "inode_table"); - } else { - if (!S_ISDIR(st.st_mode) && st.st_nlink > 1) - file->link_u.idev = pool_talloc( - flist->hlink_pool, struct idev, 1, - "inode_table"); - } - } - if (file->link_u.idev) { - file->F_DEV = st.st_dev; - file->F_INODE = st.st_ino; + if (preserve_hard_links && flist && flist->prev) { + if (protocol_version >= 28 + ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1) + : S_ISREG(st.st_mode)) { + tmp_dev = st.st_dev; + tmp_ino = st.st_ino; + } else + tmp_dev = 0; } #endif - if (dirname_len) { - file->dirname = lastdir = bp; - lastdir_len = dirname_len - 1; - memcpy(bp, dirname, dirname_len - 1); - bp += dirname_len; - bp[-1] = '\0'; - } else if (dirname) - file->dirname = dirname; - - file->basename = bp; - memcpy(bp, basename, basename_len); - bp += basename_len; - #ifdef HAVE_STRUCT_STAT_ST_RDEV - if (preserve_devices && IS_DEVICE(st.st_mode)) - file->u.rdev = st.st_rdev; + if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) { + tmp_rdev = st.st_rdev; + st.st_size = 0; + } #endif + file->flags = flags; + file->modtime = st.st_mtime; + file->len32 = (uint32)st.st_size; + if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) { + file->flags |= FLAG_LENGTH64; + OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32); + } + file->mode = st.st_mode; + if (preserve_uid) + F_OWNER(file) = st.st_uid; + if (preserve_gid) + F_GROUP(file) = st.st_gid; + + if (basename != thisname) + file->dirname = lastdir; + #ifdef SUPPORT_LINKS if (linkname_len) { - file->u.link = bp; + bp = (char*)file->basename + basename_len; memcpy(bp, linkname, linkname_len); - bp += linkname_len; } #endif - if (sum_len) { - file->u.sum = bp; - file_checksum(thisname, bp, st.st_size); - /*bp += sum_len;*/ - } + if (always_checksum && am_sender && S_ISREG(st.st_mode)) + file_checksum(thisname, tmp_sum, st.st_size); - file->dir.root = flist_dir; + F_ROOTDIR(file) = flist_dir; /* This code is only used by the receiver when it is building * a list of files for a delete pass. */ @@ -942,57 +1125,104 @@ struct file_struct *make_file(char *fname, struct file_list *flist, STRUCT_STAT st2; int save_mode = file->mode; file->mode = S_IFDIR; /* Find a directory with our name. */ - if (flist_find(the_file_list, file) >= 0 + if (flist_find(dir_flist, file) >= 0 && do_stat(thisname, &st2) == 0 && S_ISDIR(st2.st_mode)) { file->modtime = st2.st_mtime; - file->length = st2.st_size; + file->len32 = 0; file->mode = st2.st_mode; - file->uid = st2.st_uid; - file->gid = st2.st_gid; - file->u.link = NULL; + if (preserve_uid) + F_OWNER(file) = st2.st_uid; + if (preserve_gid) + F_GROUP(file) = st2.st_gid; } else file->mode = save_mode; } - if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) - stats.total_size += st.st_size; + if (basename_len == 0+1) + return NULL; + + if (inc_recurse && flist == dir_flist) { + flist_expand(flist); + flist->files[flist->count++] = file; + } return file; } +/* Only called for temporary file_struct entries created by make_file(). */ +void unmake_file(struct file_struct *file) +{ + int extra_cnt = file_extra_cnt + LEN64_BUMP(file); +#if EXTRA_ROUNDING > 0 + if (extra_cnt & EXTRA_ROUNDING) + extra_cnt = (extra_cnt | EXTRA_ROUNDING) + 1; +#endif + free(REQ_EXTRA(file, extra_cnt)); +} + static struct file_struct *send_file_name(int f, struct file_list *flist, char *fname, STRUCT_STAT *stp, - unsigned short flags) + int flags, int filter_flags) { struct file_struct *file; +#if defined SUPPORT_ACLS || defined SUPPORT_XATTRS + statx sx; +#endif - file = make_file(fname, flist, stp, flags, - f == -2 ? SERVER_FILTERS : ALL_FILTERS); + file = make_file(fname, flist, stp, flags, filter_flags); if (!file) return NULL; if (chmod_modes && !S_ISLNK(file->mode)) file->mode = tweak_mode(file->mode, chmod_modes); +#ifdef SUPPORT_ACLS + if (preserve_acls && !S_ISLNK(file->mode) && f >= 0) { + sx.st.st_mode = file->mode; + sx.acc_acl = sx.def_acl = NULL; + if (get_acl(fname, &sx) < 0) + return NULL; + } +#endif +#ifdef SUPPORT_XATTRS + if (preserve_xattrs && f >= 0) { + sx.xattr = NULL; + if (get_xattr(fname, &sx) < 0) + return NULL; + } +#endif + maybe_emit_filelist_progress(flist->count + flist_count_offset); flist_expand(flist); - - if (file->basename[0]) { - flist->files[flist->count++] = file; - send_file_entry(file, f); + flist->files[flist->count++] = file; + if (f >= 0) { + send_file_entry(f, file, flist->count - 1); +#ifdef SUPPORT_ACLS + if (preserve_acls && !S_ISLNK(file->mode)) { + send_acl(&sx, f); + free_acl(&sx); + } +#endif +#ifdef SUPPORT_XATTRS + if (preserve_xattrs) { + F_XATTR(file) = send_xattr(&sx, f); + free_xattr(&sx); + } +#endif } return file; } static void send_if_directory(int f, struct file_list *flist, struct file_struct *file, - char *fbuf, unsigned int ol) + char *fbuf, unsigned int ol, + int flags) { char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/'); if (S_ISDIR(file->mode) - && !(file->flags & FLAG_MOUNT_POINT) && f_name(file, fbuf)) { + && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) { void *save_filters; unsigned int len = strlen(fbuf); if (len > 1 && fbuf[len-1] == '/') @@ -1004,7 +1234,7 @@ static void send_if_directory(int f, struct file_list *flist, return; } save_filters = push_local_filters(fbuf, len); - send_directory(f, flist, fbuf, len); + send_directory(f, flist, -1, fbuf, len, flags); pop_local_filters(save_filters); fbuf[ol] = '\0'; if (is_dot_dir) @@ -1012,19 +1242,60 @@ static void send_if_directory(int f, struct file_list *flist, } } +static int file_compare(struct file_struct **file1, struct file_struct **file2) +{ + return f_name_cmp(*file1, *file2); +} + +/* We take an entire set of sibling dirs from dir_flist (start <= ndx <= end), + * sort them by name, and link them into the tree, setting the appropriate + * parent/child/sibling pointers. */ +static void add_dirs_to_tree(int parent_ndx, int start, int end) +{ + int i; + int32 *dp = NULL; + int32 *parent_dp = parent_ndx < 0 ? NULL + : F_DIRNODE_P(dir_flist->files[parent_ndx]); + + qsort(dir_flist->files + start, end - start + 1, + sizeof dir_flist->files[0], (int (*)())file_compare); + + for (i = start; i <= end; i++) { + struct file_struct *file = dir_flist->files[i]; + if (!(file->flags & FLAG_XFER_DIR) + || file->flags & FLAG_MOUNT_DIR) + continue; + if (dp) + DIR_NEXT_SIBLING(dp) = i; + else if (parent_dp) + DIR_FIRST_CHILD(parent_dp) = i; + else + send_dir_ndx = i; + dp = F_DIRNODE_P(file); + DIR_PARENT(dp) = parent_ndx; + DIR_FIRST_CHILD(dp) = -1; + } + if (dp) + DIR_NEXT_SIBLING(dp) = -1; +} + /* This function is normally called by the sender, but the receiving side also * calls it from get_dirlist() with f set to -1 so that we just construct the * file list in memory without sending it over the wire. Also, get_dirlist() * might call this with f set to -2, which also indicates that local filter * rules should be ignored. */ -static void send_directory(int f, struct file_list *flist, - char *fbuf, int len) +static void send_directory(int f, struct file_list *flist, int parent_ndx, + char *fbuf, int len, int flags) { struct dirent *di; unsigned remainder; char *p; DIR *d; - int start = flist->count; + int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0; + int start = divert_dirs ? dir_flist->count : flist->count; + int filter_flags = f == -2 ? SERVER_FILTERS : ALL_FILTERS; + + assert(flist != NULL); if (!(d = opendir(fbuf))) { io_error |= IOERR_GENERAL; @@ -1051,7 +1322,7 @@ static void send_directory(int f, struct file_list *flist, continue; } - send_file_name(f, flist, fbuf, NULL, 0); + send_file_name(f, flist, fbuf, NULL, flags, filter_flags); } fbuf[len] = '\0'; @@ -1063,37 +1334,131 @@ static void send_directory(int f, struct file_list *flist, closedir(d); - if (recurse) { + if (f < 0) + return; + + if (divert_dirs) + add_dirs_to_tree(parent_ndx, start, dir_flist->count - 1); + else if (recurse) { int i, end = flist->count - 1; + /* send_if_directory() bumps flist->count, so use "end". */ for (i = start; i <= end; i++) - send_if_directory(f, flist, flist->files[i], fbuf, len); + send_if_directory(f, flist, flist->files[i], fbuf, len, flags); + } +} + +void send_extra_file_list(int f, int at_least) +{ + char fbuf[MAXPATHLEN]; + struct file_list *flist; + int64 start_write; + int future_cnt, save_io_error = io_error; + + if (flist_eof) + return; + + /* Keep sending data until we have the requested number of + * files in the upcoming file-lists. */ + if (cur_flist->next) { + flist = first_flist->prev; /* the newest flist */ + future_cnt = flist->count + + flist->ndx_start - cur_flist->next->ndx_start; + } else + future_cnt = 0; + while (future_cnt < at_least) { + struct file_struct *file = dir_flist->files[send_dir_ndx]; + int32 *dp; + int dlen; + + f_name(file, fbuf); + dlen = strlen(fbuf); + + if (F_ROOTDIR(file) != flist_dir) { + if (!push_flist_dir(F_ROOTDIR(file), -1)) + exit_cleanup(RERR_FILESELECT); + } + + flist = flist_new(0, "send_extra_file_list"); + start_write = stats.total_written; + + write_ndx(f, NDX_FLIST_OFFSET - send_dir_ndx); + change_local_filter_dir(fbuf, dlen, send_dir_depth); + send_directory(f, flist, send_dir_ndx, fbuf, dlen, FLAG_DIVERT_DIRS | FLAG_XFER_DIR); + write_byte(f, 0); + + clean_flist(flist, 0, 0); + file_total += flist->count; + future_cnt += flist->count; + stats.flist_size += stats.total_written - start_write; + stats.num_files += flist->count; + if (verbose > 3) + output_flist(flist); + + dp = F_DIRNODE_P(file); + if (DIR_FIRST_CHILD(dp) >= 0) { + send_dir_ndx = DIR_FIRST_CHILD(dp); + send_dir_depth++; + } else { + while (DIR_NEXT_SIBLING(dp) < 0) { + if ((send_dir_ndx = DIR_PARENT(dp)) < 0) { + write_ndx(f, NDX_FLIST_EOF); + flist_eof = 1; + change_local_filter_dir(NULL, 0, 0); + goto finish; + } + send_dir_depth--; + file = dir_flist->files[send_dir_ndx]; + dp = F_DIRNODE_P(file); + } + send_dir_ndx = DIR_NEXT_SIBLING(dp); + } } + + finish: + if (io_error != save_io_error && !ignore_errors) + send_msg_int(MSG_IO_ERROR, io_error); } struct file_list *send_file_list(int f, int argc, char *argv[]) { int len; STRUCT_STAT st; - char *p, *dir, olddir[sizeof curr_dir]; + char *p, *dir; char lastpath[MAXPATHLEN] = ""; struct file_list *flist; struct timeval start_tv, end_tv; int64 start_write; int use_ff_fd = 0; + int flags, disable_buffering; + rprintf(FLOG, "building file list\n"); if (show_filelist_p()) start_filelist_progress("building file list"); + else if (inc_recurse && verbose && !am_server) + rprintf(FCLIENT, "sending incremental file list\n"); start_write = stats.total_written; gettimeofday(&start_tv, NULL); - flist = flist_new(WITH_HLINK, "send_file_list"); +#ifdef SUPPORT_HARD_LINKS + if (preserve_hard_links && protocol_version >= 30 && !cur_flist) + init_hard_links(); +#endif + + flist = cur_flist = flist_new(0, "send_file_list"); + if (inc_recurse) { + dir_flist = flist_new(FLIST_TEMP, "send_file_list"); + flags = FLAG_DIVERT_DIRS; + } else { + dir_flist = cur_flist; + flags = 0; + } - io_start_buffering_out(); + disable_buffering = io_start_buffering_out(f); if (filesfrom_fd >= 0) { - if (argv[0] && !push_dir(argv[0])) { - rsyserr(FERROR, errno, "push_dir %s failed", - full_fname(argv[0])); + if (argv[0] && !push_dir(argv[0], 0)) { + rsyserr(FERROR, errno, "push_dir %s failed in %s", + full_fname(argv[0]), curr_dir); exit_cleanup(RERR_FILESELECT); } use_ff_fd = 1; @@ -1107,13 +1472,13 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (use_ff_fd) { if (read_filesfrom_line(filesfrom_fd, fbuf) == 0) break; - sanitize_path(fbuf, fbuf, "", 0); + sanitize_path(fbuf, fbuf, "", 0, NULL); } else { if (argc-- == 0) break; strlcpy(fbuf, *argv++, MAXPATHLEN); if (sanitize_paths) - sanitize_path(fbuf, fbuf, "", 0); + sanitize_path(fbuf, fbuf, "", 0, NULL); } len = strlen(fbuf); @@ -1144,20 +1509,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) && (len == 1 || fbuf[len-2] == '/'); } - if (link_stat(fbuf, &st, keep_dirlinks) != 0) { - io_error |= IOERR_GENERAL; - rsyserr(FERROR, errno, "link_stat %s failed", - full_fname(fbuf)); - continue; - } - - if (S_ISDIR(st.st_mode) && !xfer_dirs) { - rprintf(FINFO, "skipping directory %s\n", fbuf); - continue; - } - dir = NULL; - olddir[0] = '\0'; if (!relative_paths) { p = strrchr(fbuf, '/'); @@ -1201,6 +1553,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) } else break; } + if (len == 1 && fn[0] == '/') + fn[len++] = '.'; fn[len] = '\0'; /* Reject a ".." dir in the active part of the path. */ for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) { @@ -1220,30 +1574,39 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) } if (dir && *dir) { - static char *lastdir; - static int lastdir_len; - - strlcpy(olddir, curr_dir, sizeof olddir); - - if (!push_dir(dir)) { + static const char *lastdir; + static int lastdir_len = -1; + int len = strlen(dir); + + if (len != lastdir_len || memcmp(lastdir, dir, len) != 0) { + if (!push_flist_dir(strdup(dir), len)) + goto push_error; + lastdir = flist_dir; + lastdir_len = flist_dir_len; + } else if (!push_flist_dir(lastdir, lastdir_len)) { + push_error: io_error |= IOERR_GENERAL; - rsyserr(FERROR, errno, "push_dir %s failed", - full_fname(dir)); + rsyserr(FERROR, errno, "push_dir %s failed in %s", + full_fname(dir), curr_dir); continue; } - - 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 (fn != fbuf) memmove(fbuf, fn, len + 1); + if (link_stat(fbuf, &st, copy_dirlinks) != 0) { + io_error |= IOERR_GENERAL; + rsyserr(FERROR, errno, "link_stat %s failed", + full_fname(fbuf)); + continue; + } + + if (S_ISDIR(st.st_mode) && !xfer_dirs) { + rprintf(FINFO, "skipping directory %s\n", fbuf); + continue; + } + if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) { /* Send the implied directories at the start of the * source spec, so we get their permissions right. */ @@ -1259,11 +1622,13 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (fn != p || (*lp && *lp != '/')) { int save_copy_links = copy_links; int save_xfer_dirs = xfer_dirs; - copy_links = copy_unsafe_links; + int dir_flags = inc_recurse ? FLAG_DIVERT_DIRS : 0; + copy_links |= copy_unsafe_links; xfer_dirs = 1; while ((slash = strchr(slash+1, '/')) != 0) { *slash = '\0'; - send_file_name(f, flist, fbuf, NULL, 0); + send_file_name(f, flist, fbuf, NULL, + dir_flags, ALL_FILTERS); *slash = '/'; } copy_links = save_copy_links; @@ -1279,21 +1644,15 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (recurse || (xfer_dirs && is_dot_dir)) { struct file_struct *file; - file = send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR); - if (file) - send_if_directory(f, flist, file, fbuf, len); + int top_flags = FLAG_TOP_DIR | FLAG_XFER_DIR + | (is_dot_dir ? 0 : flags) + | (inc_recurse ? FLAG_DIVERT_DIRS : 0); + file = send_file_name(f, flist, fbuf, &st, + top_flags, ALL_FILTERS); + if (file && !inc_recurse) + send_if_directory(f, flist, file, fbuf, len, flags); } else - send_file_name(f, flist, fbuf, &st, 0); - - if (olddir[0]) { - flist_dir = NULL; - flist_dir_len = 0; - if (!pop_dir(olddir)) { - rsyserr(FERROR, errno, "pop_dir %s failed", - full_fname(olddir)); - exit_cleanup(RERR_FILESELECT); - } - } + send_file_name(f, flist, fbuf, &st, flags, ALL_FILTERS); } gettimeofday(&end_tv, NULL); @@ -1303,7 +1662,12 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) stats.flist_buildtime = 1; start_tv = end_tv; - send_file_entry(NULL, f); + write_byte(f, 0); /* Indicate end of file list */ + +#ifdef SUPPORT_HARD_LINKS + if (preserve_hard_links && protocol_version >= 30 && !inc_recurse) + idev_destroy(); +#endif if (show_filelist_p()) finish_filelist_progress(flist); @@ -1312,23 +1676,26 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000 + (end_tv.tv_usec - start_tv.tv_usec) / 1000; - if (flist->hlink_pool) { - pool_destroy(flist->hlink_pool); - flist->hlink_pool = NULL; - } - - /* Sort the list without removing any duplicates. This allows the - * receiving side to ask for any name they like, which gives us the - * flexibility to change the way we unduplicate names in the future - * without causing a compatibility problem with older versions. */ - clean_flist(flist, 0, 0); + /* Sort the list without removing any duplicates in non-incremental + * mode. This allows the receiving side to ask for whatever name it + * kept. For incremental mode, the sender also removes duplicates + * in this initial file-list so that it avoids re-sending duplicated + * directories. */ + clean_flist(flist, 0, inc_recurse); + file_total += flist->count; - send_uid_list(f); + if (!numeric_ids && !inc_recurse) + send_uid_list(f); /* send the io_error flag */ - write_int(f, lp_ignore_errors(module_id) ? 0 : io_error); + if (protocol_version < 30) + write_int(f, ignore_errors ? 0 : io_error); + else if (io_error && !ignore_errors) + send_msg_int(MSG_IO_ERROR, io_error); + + if (disable_buffering) + io_end_buffering_out(); - io_end_buffering(); stats.flist_size = stats.total_written - start_write; stats.num_files = flist->count; @@ -1338,27 +1705,53 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (verbose > 2) rprintf(FINFO, "send_file_list done\n"); + if (inc_recurse) { + add_dirs_to_tree(-1, 0, dir_flist->count - 1); + if (send_dir_ndx < 0) { + write_ndx(f, NDX_FLIST_EOF); + flist_eof = 1; + } + else if (file_total == 1) { + /* If we're creating incremental file-lists and there + * was just 1 item in the first file-list, send 1 more + * file-list to check if this is a 1-file xfer. */ + send_extra_file_list(f, 1); + } + } + return flist; } struct file_list *recv_file_list(int f) { struct file_list *flist; - unsigned short flags; + int dstart, flags; int64 start_read; + if (!first_flist) + rprintf(FLOG, "receiving file list\n"); if (show_filelist_p()) start_filelist_progress("receiving file list"); + else if (inc_recurse && verbose && !am_server && !first_flist) + rprintf(FCLIENT, "receiving incremental file list\n"); start_read = stats.total_read; - flist = flist_new(WITH_HLINK, "recv_file_list"); + flist = flist_new(0, "recv_file_list"); - flist->count = 0; - flist->malloced = 1000; - flist->files = new_array(struct file_struct *, flist->malloced); - if (!flist->files) - goto oom; +#ifdef SUPPORT_HARD_LINKS + if (preserve_hard_links && protocol_version < 30) + init_hard_links(); +#endif + + if (inc_recurse) { + if (flist->ndx_start == 0) + dir_flist = flist_new(FLIST_TEMP, "recv_file_list"); + dstart = dir_flist->count; + } else { + dir_flist = flist; + dstart = 0; + } while ((flags = read_byte(f)) != 0) { struct file_struct *file; @@ -1367,10 +1760,12 @@ struct file_list *recv_file_list(int f) if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS)) flags |= read_byte(f) << 8; - file = receive_file_entry(flist, flags, f); + file = recv_file_entry(flist, flags, f); - if (S_ISREG(file->mode)) - stats.total_size += file->length; + if (inc_recurse && S_ISDIR(file->mode)) { + flist_expand(dir_flist); + dir_flist->files[dir_flist->count++] = file; + } flist->files[flist->count++] = file; @@ -1381,7 +1776,7 @@ struct file_list *recv_file_list(int f) f_name(file, NULL)); } } - receive_file_entry(NULL, 0, 0); /* Signal that we're done. */ + file_total += flist->count; if (verbose > 2) rprintf(FINFO, "received %d names\n", flist->count); @@ -1391,11 +1786,15 @@ struct file_list *recv_file_list(int f) clean_flist(flist, relative_paths, 1); - if (f >= 0) { + if (inc_recurse) { + qsort(dir_flist->files + dstart, dir_flist->count - dstart, + sizeof dir_flist->files[0], (int (*)())file_compare); + } else if (f >= 0) recv_uid_list(f, flist); + if (protocol_version < 30) { /* Recv the io_error flag */ - if (lp_ignore_errors(module_id) || ignore_errors) + if (ignore_errors) read_int(f); else io_error |= read_int(f); @@ -1413,19 +1812,34 @@ struct file_list *recv_file_list(int f) if (verbose > 2) rprintf(FINFO, "recv_file_list done\n"); - stats.flist_size = stats.total_read - start_read; - stats.num_files = flist->count; + stats.flist_size += stats.total_read - start_read; + stats.num_files += flist->count; return flist; - - oom: - out_of_memory("recv_file_list"); - return NULL; /* not reached */ } -static int file_compare(struct file_struct **file1, struct file_struct **file2) +/* This is only used once by the receiver if the very first file-list + * has exactly one item in it. */ +void recv_additional_file_list(int f) { - return f_name_cmp(*file1, *file2); + struct file_list *flist; + int ndx = read_ndx(f); + if (ndx == NDX_FLIST_EOF) { + flist_eof = 1; + change_local_filter_dir(NULL, 0, 0); + } else { + ndx = NDX_FLIST_OFFSET - ndx; + if (ndx < 0 || ndx >= dir_flist->count) { + ndx = NDX_FLIST_OFFSET - ndx; + rprintf(FERROR, + "Invalid dir index: %d (%d - %d)\n", + ndx, NDX_FLIST_OFFSET, + NDX_FLIST_OFFSET - dir_flist->count); + exit_cleanup(RERR_PROTOCOL); + } + flist = recv_file_list(f); + flist->parent_ndx = ndx; + } } /* Search for an identically-named item in the file list. Note that the @@ -1433,26 +1847,48 @@ static int file_compare(struct file_struct **file1, struct file_struct **file2) int flist_find(struct file_list *flist, struct file_struct *f) { int low = flist->low, high = flist->high; - int ret, mid, mid_up; + int diff, mid, mid_up; while (low <= high) { mid = (low + high) / 2; - for (mid_up = mid; !flist->files[mid_up]->basename; mid_up++) {} - if (mid_up <= high) - ret = f_name_cmp(flist->files[mid_up], f); - else - ret = 1; - if (ret == 0) { + if (F_IS_ACTIVE(flist->files[mid])) + mid_up = mid; + else { + /* Scan for the next non-empty entry using the cached + * distance values. If the value isn't fully up-to- + * date, update it. */ + mid_up = mid + F_DEPTH(flist->files[mid]); + if (!F_IS_ACTIVE(flist->files[mid_up])) { + do { + mid_up += F_DEPTH(flist->files[mid_up]); + } while (!F_IS_ACTIVE(flist->files[mid_up])); + F_DEPTH(flist->files[mid]) = mid_up - mid; + } + if (mid_up > high) { + /* If there's nothing left above us, set high to + * a non-empty entry below us and continue. */ + high = mid - (int)flist->files[mid]->len32; + if (!F_IS_ACTIVE(flist->files[high])) { + do { + high -= (int)flist->files[high]->len32; + } while (!F_IS_ACTIVE(flist->files[high])); + flist->files[mid]->len32 = mid - high; + } + continue; + } + } + diff = f_name_cmp(flist->files[mid_up], f); + if (diff == 0) { if (protocol_version < 29 && S_ISDIR(flist->files[mid_up]->mode) != S_ISDIR(f->mode)) return -1; return mid_up; } - if (ret > 0) - high = mid - 1; - else + if (diff < 0) low = mid_up + 1; + else + high = mid - 1; } return -1; } @@ -1461,17 +1897,19 @@ int flist_find(struct file_list *flist, struct file_struct *f) * Free up any resources a file_struct has allocated * and clear the file. */ -void clear_file(int i, struct file_list *flist) +void clear_file(struct file_struct *file) { - if (flist->hlink_pool && flist->files[i]->link_u.idev) - pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev); - memset(flist->files[i], 0, file_struct_len); + /* The +1 zeros out the first char of the basename. */ + memset(file, 0, FILE_STRUCT_LEN + 1); + /* In an empty entry, F_DEPTH() is an offset to the next non-empty + * entry. Likewise for len32 in the opposite direction. We assume + * that we're alone for now since flist_find() will adjust the counts + * it runs into that aren't up-to-date. */ + file->len32 = F_DEPTH(file) = 1; } -/* - * allocate a new file list - */ -struct file_list *flist_new(int with_hlink, char *msg) +/* Allocate a new file list. */ +struct file_list *flist_new(int flags, char *msg) { struct file_list *flist; @@ -1479,30 +1917,55 @@ struct file_list *flist_new(int with_hlink, char *msg) if (!flist) out_of_memory(msg); - memset(flist, 0, sizeof (struct file_list)); + memset(flist, 0, sizeof flist[0]); - if (!(flist->file_pool = pool_create(FILE_EXTENT, 0, - out_of_memory, POOL_INTERN))) - out_of_memory(msg); - -#ifdef SUPPORT_HARD_LINKS - if (with_hlink && preserve_hard_links) { - if (!(flist->hlink_pool = pool_create(HLINK_EXTENT, - sizeof (struct idev), out_of_memory, POOL_INTERN))) - out_of_memory(msg); + if (!(flags & FLIST_TEMP)) { + if (first_flist) { + flist->ndx_start = first_flist->prev->ndx_start + + first_flist->prev->count; + } + /* This is a doubly linked list with prev looping back to + * the end of the list, but the last next pointer is NULL. */ + if (!first_flist) + first_flist = cur_flist = flist->prev = flist; + else { + flist->prev = first_flist->prev; + flist->prev->next = first_flist->prev = flist; + } + flist_cnt++; } -#endif + + if (!(flist->file_pool = pool_create(FILE_EXTENT, 0, out_of_memory, POOL_INTERN))) + out_of_memory(msg); return flist; } -/* - * free up all elements in a flist - */ +/* Free up all elements in a flist. */ void flist_free(struct file_list *flist) { + if (!flist->prev) + ; /* Was FLIST_TEMP dir-list. */ + else if (flist == flist->prev) { + first_flist = cur_flist = NULL; + file_total = 0; + flist_cnt = 0; + } else { + if (flist == cur_flist) + cur_flist = flist->next; + if (flist == first_flist) + first_flist = first_flist->next; + else { + flist->prev->next = flist->next; + if (!flist->next) + flist->next = first_flist; + } + flist->next->prev = flist->prev; + file_total -= flist->count; + flist_cnt--; + } + pool_destroy(flist->file_pool); - pool_destroy(flist->hlink_pool); free(flist->files); free(flist); } @@ -1513,6 +1976,7 @@ void flist_free(struct file_list *flist) */ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) { + char fbuf[MAXPATHLEN]; int i, prev_i = 0; if (!flist) @@ -1526,7 +1990,7 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) sizeof flist->files[0], (int (*)())file_compare); for (i = no_dups? 0 : flist->count; i < flist->count; i++) { - if (flist->files[i]->basename) { + if (F_IS_ACTIVE(flist->files[i])) { prev_i = i; break; } @@ -1536,7 +2000,7 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) int j; struct file_struct *file = flist->files[i]; - if (!file->basename) + if (!F_IS_ACTIVE(file)) continue; if (f_name_cmp(file, flist->files[prev_i]) == 0) j = prev_i; @@ -1561,24 +2025,26 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) keep = i, drop = j; else keep = j, drop = i; - } else + } else if (protocol_version < 27) keep = j, drop = i; + else + keep = i, drop = j; if (verbose > 1 && !am_server) { rprintf(FINFO, "removing duplicate name %s from file list (%d)\n", - f_name(file, NULL), drop); + f_name(file, fbuf), drop); } - /* Make sure that if we unduplicate '.', that we don't - * lose track of a user-specified top directory. */ + /* Make sure we don't lose track of a user-specified + * top directory. */ flist->files[keep]->flags |= flist->files[drop]->flags - & (FLAG_TOP_DIR|FLAG_DEL_HERE); + & (FLAG_TOP_DIR|FLAG_XFER_DIR); - clear_file(drop, flist); + clear_file(flist->files[drop]); if (keep == i) { if (flist->low == drop) { for (j = drop + 1; - j < i && !flist->files[j]->basename; + j < i && !F_IS_ACTIVE(flist->files[j]); j++) {} flist->low = j; } @@ -1597,43 +2063,117 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) if (!file->dirname) continue; - if (*file->dirname == '/') { - char *s = file->dirname + 1; - while (*s == '/') s++; - memmove(file->dirname, s, strlen(s) + 1); - } - + while (*file->dirname == '/') + file->dirname++; if (!*file->dirname) file->dirname = NULL; } } + + if (prune_empty_dirs && no_dups) { + int j, prev_depth = 0; + + prev_i = 0; /* It's OK that this isn't really true. */ + + for (i = flist->low; i <= flist->high; i++) { + struct file_struct *fp, *file = flist->files[i]; + + /* This temporarily abuses the F_DEPTH() value for a + * directory that is in a chain that might get pruned. + * We restore the old value if it gets a reprieve. */ + if (S_ISDIR(file->mode) && F_DEPTH(file)) { + /* Dump empty dirs when coming back down. */ + for (j = prev_depth; j >= F_DEPTH(file); j--) { + fp = flist->files[prev_i]; + if (F_DEPTH(fp) >= 0) + break; + prev_i = -F_DEPTH(fp)-1; + clear_file(fp); + } + prev_depth = F_DEPTH(file); + if (is_excluded(f_name(file, fbuf), 1, + ALL_FILTERS)) { + /* Keep dirs through this dir. */ + for (j = prev_depth-1; ; j--) { + fp = flist->files[prev_i]; + if (F_DEPTH(fp) >= 0) + break; + prev_i = -F_DEPTH(fp)-1; + F_DEPTH(fp) = j; + } + } else + F_DEPTH(file) = -prev_i-1; + prev_i = i; + } else { + /* Keep dirs through this non-dir. */ + for (j = prev_depth; ; j--) { + fp = flist->files[prev_i]; + if (F_DEPTH(fp) >= 0) + break; + prev_i = -F_DEPTH(fp)-1; + F_DEPTH(fp) = j; + } + } + } + /* Dump all remaining empty dirs. */ + while (1) { + struct file_struct *fp = flist->files[prev_i]; + if (F_DEPTH(fp) >= 0) + break; + prev_i = -F_DEPTH(fp)-1; + clear_file(fp); + } + + for (i = flist->low; i <= flist->high; i++) { + if (F_IS_ACTIVE(flist->files[i])) + break; + } + flist->low = i; + for (i = flist->high; i >= flist->low; i--) { + if (F_IS_ACTIVE(flist->files[i])) + break; + } + flist->high = i; + } } static void output_flist(struct file_list *flist) { char uidbuf[16], gidbuf[16], depthbuf[16]; struct file_struct *file; + const char *root, *dir, *slash, *name, *trail; const char *who = who_am_i(); int i; + rprintf(FINFO, "[%s] flist start=%d, count=%d, low=%d, high=%d\n", + who, flist->ndx_start, flist->count, flist->low, flist->high); for (i = 0; i < flist->count; i++) { file = flist->files[i]; - if ((am_root || am_sender) && preserve_uid) - sprintf(uidbuf, " uid=%ld", (long)file->uid); - else + if ((am_root || am_sender) && preserve_uid) { + snprintf(uidbuf, sizeof uidbuf, " uid=%ld", + (long)F_UID(file)); + } else *uidbuf = '\0'; - if (preserve_gid && file->gid != GID_NONE) - sprintf(gidbuf, " gid=%ld", (long)file->gid); - else + if (preserve_gid && F_GID(file) != GID_NONE) { + snprintf(gidbuf, sizeof gidbuf, " gid=%ld", + (long)F_GID(file)); + } else *gidbuf = '\0'; if (!am_sender) - sprintf(depthbuf, "%d", file->dir.depth); + snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file)); + if (F_IS_ACTIVE(file)) { + root = am_sender ? NS(F_ROOTDIR(file)) : depthbuf; + if ((dir = file->dirname) == NULL) + dir = slash = ""; + else + slash = "/"; + name = file->basename; + trail = S_ISDIR(file->mode) ? "/" : ""; + } else + root = dir = slash = name = trail = ""; rprintf(FINFO, "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n", - who, i, am_sender ? NS(file->dir.root) : depthbuf, - file->dirname ? file->dirname : "", - file->dirname ? "/" : "", NS(file->basename), - S_ISDIR(file->mode) ? "/" : "", (int)file->mode, - (double)file->length, uidbuf, gidbuf, file->flags); + who, i, root, dir, slash, name, trail, (int)file->mode, + (double)F_LENGTH(file), uidbuf, gidbuf, file->flags); } } @@ -1663,12 +2203,12 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) enum fnc_type type1, type2; enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM; - if (!f1 || !f1->basename) { - if (!f2 || !f2->basename) + if (!f1 || !F_IS_ACTIVE(f1)) { + if (!f2 || !F_IS_ACTIVE(f2)) return 0; return -1; } - if (!f2 || !f2->basename) + if (!f2 || !F_IS_ACTIVE(f2)) return 1; c1 = (uchar*)f1->dirname; @@ -1677,34 +2217,26 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) c1 = c2 = NULL; if (!c1) { type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM; - c1 = (uchar*)f1->basename; + c1 = (const uchar*)f1->basename; if (type1 == t_PATH && *c1 == '.' && !c1[1]) { type1 = t_ITEM; state1 = s_TRAILING; c1 = (uchar*)""; } else state1 = s_BASE; - } else if (!*c1) { - type1 = t_path; - state1 = s_SLASH; - c1 = (uchar*)"/"; } else { type1 = t_path; state1 = s_DIR; } if (!c2) { type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM; - c2 = (uchar*)f2->basename; + c2 = (const uchar*)f2->basename; if (type2 == t_PATH && *c2 == '.' && !c2[1]) { type2 = t_ITEM; state2 = s_TRAILING; c2 = (uchar*)""; } else state2 = s_BASE; - } else if (!*c2) { - type2 = t_path; - state2 = s_SLASH; - c2 = (uchar*)"/"; } else { type2 = t_path; state2 = s_DIR; @@ -1713,9 +2245,7 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) if (type1 != type2) return type1 == t_PATH ? 1 : -1; - while (1) { - if ((dif = (int)*c1++ - (int)*c2++) != 0) - break; + do { if (!*c1) { switch (state1) { case s_DIR: @@ -1724,7 +2254,7 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) break; case s_SLASH: type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM; - c1 = (uchar*)f1->basename; + c1 = (const uchar*)f1->basename; if (type1 == t_PATH && *c1 == '.' && !c1[1]) { type1 = t_ITEM; state1 = s_TRAILING; @@ -1754,7 +2284,7 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) break; case s_SLASH: type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM; - c2 = (uchar*)f2->basename; + c2 = (const uchar*)f2->basename; if (type2 == t_PATH && *c2 == '.' && !c2[1]) { type2 = t_ITEM; state2 = s_TRAILING; @@ -1778,36 +2308,40 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2) if (type1 != type2) return type1 == t_PATH ? 1 : -1; } - } + } while ((dif = (int)*c1++ - (int)*c2++) == 0); return dif; } +char *f_name_buf(void) +{ + static char names[5][MAXPATHLEN]; + static unsigned int n; + + n = (n + 1) % (sizeof names / sizeof names[0]); + + return names[n]; +} + /* Return a copy of the full filename of a flist entry, using the indicated * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is * done because we checked the size when creating the file_struct entry. */ char *f_name(struct file_struct *f, char *fbuf) { - if (!f || !f->basename) + if (!f || !F_IS_ACTIVE(f)) return NULL; - if (!fbuf) { - static char names[5][MAXPATHLEN]; - static unsigned int n; - - n = (n + 1) % (sizeof names / sizeof names[0]); - - fbuf = names[n]; - } + if (!fbuf) + fbuf = f_name_buf(); if (f->dirname) { int len = strlen(f->dirname); memcpy(fbuf, f->dirname, len); fbuf[len] = '/'; - strcpy(fbuf + len + 1, f->basename); + strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1)); } else - strcpy(fbuf, f->basename); + strlcpy(fbuf, f->basename, MAXPATHLEN); return fbuf; } @@ -1817,12 +2351,12 @@ char *f_name(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 ignore_filter_rules) { struct file_list *dirlist; char dirbuf[MAXPATHLEN]; int save_recurse = recurse; + int save_xfer_dirs = xfer_dirs; if (dlen < 0) { dlen = strlcpy(dirbuf, dirname, MAXPATHLEN); @@ -1831,10 +2365,12 @@ struct file_list *get_dirlist(char *dirname, int dlen, dirname = dirbuf; } - dirlist = flist_new(WITHOUT_HLINK, "get_dirlist"); + dirlist = flist_new(FLIST_TEMP, "get_dirlist"); recurse = 0; - send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen); + xfer_dirs = 1; + send_directory(ignore_filter_rules ? -2 : -1, dirlist, -1, dirname, dlen, 0); + xfer_dirs = save_xfer_dirs; recurse = save_recurse; if (do_progress) flist_count_offset += dirlist->count;