X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/151f59f155c1a2f3f6301c0ad5b59654d922e34a..30e50494bbb057d4191e4636b963c6b7b0770ece:/flist.c diff --git a/flist.c b/flist.c index 30e88ab4..11d4b041 100644 --- a/flist.c +++ b/flist.c @@ -1,34 +1,30 @@ /* - 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, 2003, 2004, 2005, 2006 Wayne Davison * - **/ + * 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., + * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ #include "rsync.h" +#include "rounding.h" extern int verbose; -extern int dry_run; extern int list_only; extern int am_root; extern int am_server; @@ -43,48 +39,62 @@ 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_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 flist_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]; +extern struct chmod_mode_struct *chmod_modes; + extern struct filter_list_struct filter_list; extern struct filter_list_struct server_filter_list; int io_error; +int checksum_len; dev_t filesystem_dev; /* used to implement -x */ +/* 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[MD4_SUM_LENGTH]; + static char empty_sum[MD4_SUM_LENGTH]; -static int flist_count_offset; -static unsigned int file_struct_len; -static struct file_list *sorting_flist; +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; + 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 : MD4_SUM_LENGTH; } - static int show_filelist_p(void) { return verbose && xfer_dirs && !am_server; @@ -92,26 +102,23 @@ static int show_filelist_p(void) 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) { if (do_progress && show_filelist_p() && (count % 100) == 0) emit_filelist_progress(count); } - static void finish_filelist_progress(const struct file_list *flist) { if (do_progress) { @@ -127,90 +134,80 @@ void show_flist_stats(void) /* Nothing yet */ } - 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); #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), - safe_fname(f_name(f)), safe_fname(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), - safe_fname(f_name(f))); + 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. - * - * @retval -1 on error - * - * @retval 0 for success +/* 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. * - * @post If @p path is a symlink, then @p linkbuf (of size @c - * MAXPATHLEN) contains the symlink target. + * 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. * - * @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", - safe_fname(path), safe_fname(linkbuf)); + 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 } @@ -248,24 +245,27 @@ 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 char *flist_dir; +static const char *flist_dir; static int flist_dir_len; @@ -298,7 +298,7 @@ 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" : ""); @@ -310,7 +310,7 @@ void flist_expand(struct file_list *flist) out_of_memory("flist_expand"); } -void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) +static void send_file_entry(struct file_struct *file, int f, int ndx) { unsigned short flags; static time_t modtime; @@ -322,42 +322,26 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) static gid_t gid; static char lastname[MAXPATHLEN]; char fname[MAXPATHLEN]; + int first_hlink_ndx = -1; int l1, l2; - if (f < 0) - return; + f_name(file, fname); - 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"; - - f_name_to(file, fname); - - flags = base_flags; + 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 @@ -365,28 +349,43 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) if ((uint32)minor(rdev) <= 0xFFu) flags |= XMIT_RDEV_MINOR_IS_SMALL; } + } else if (protocol_version < 28) + rdev = MAKEDEV(0, 0); + if (preserve_uid) { + if (F_UID(file) == uid) + flags |= XMIT_SAME_UID; + else + uid = F_UID(file); + } + if (preserve_gid) { + if (F_GID(file) == gid) + flags |= XMIT_SAME_GID; + else + gid = F_GID(file); } - 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)np->data - 1; + if (first_hlink_ndx < 0) { + np->data = (void*)(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 @@ -409,15 +408,12 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) 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 { - if (!(flags & 0xFF) && !S_ISDIR(mode)) - flags |= XMIT_TOP_DIR; if (!(flags & 0xFF)) - flags |= XMIT_LONG_NAME; + flags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR; write_byte(f, flags); } if (flags & XMIT_SAME_NAME) @@ -428,7 +424,12 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) write_byte(f, l2); write_buf(f, fname + l1, l2); - write_longint(f, file->length); + if (first_hlink_ndx >= 0) { + write_int(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)) @@ -443,7 +444,8 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) add_gid(gid); write_int(f, gid); } - 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); @@ -459,51 +461,45 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) #ifdef SUPPORT_LINKS if (preserve_links && S_ISLNK(mode)) { - int len = strlen(file->u.link); + const char *sl = F_SYMLINK(file); + int len = strlen(sl); write_int(f, len); - write_buf(f, file->u.link, 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) { - char *sum; + if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) { + const char *sum; if (S_ISREG(mode)) - sum = file->u.sum; - else if (protocol_version < 28) { + sum = tmp_sum; + else { /* 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); } + write_buf(f, sum, checksum_len); } + the_end: strlcpy(lastname, fname, MAXPATHLEN); - - io_write_phase = "unknown"; } - - -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, + unsigned short flags, int f) { static time_t modtime; static mode_t mode; @@ -518,14 +514,16 @@ 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, dirname_len, linkname_len; + int extra_len = flist_extra_cnt * EXTRA_LEN; + int first_hlink_ndx = -1; OFF_T file_length; char *basename, *dirname, *bp; struct file_struct *file; if (!flist) { modtime = 0, mode = 0; - dev = 0, rdev = makedev(0, 0); + dev = 0, rdev = MAKEDEV(0, 0); rdev_major = 0; uid = 0, gid = 0; *lastname = '\0'; @@ -544,9 +542,9 @@ static struct file_struct *receive_file_entry(struct file_list *flist, if (l2 >= MAXPATHLEN - l1) { rprintf(FERROR, - "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n", - flags, l1, l2, safe_fname(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); @@ -558,7 +556,7 @@ 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' */ @@ -575,25 +573,58 @@ static struct file_struct *receive_file_entry(struct file_list *flist, } 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_int(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)); + } + 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); if (!(flags & XMIT_SAME_MODE)) mode = from_wire_mode(read_int(f)); + 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_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); @@ -601,9 +632,12 @@ static struct file_struct *receive_file_entry(struct file_list *flist, 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)) { @@ -611,29 +645,61 @@ static struct file_struct *receive_file_entry(struct file_list *flist, 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 + + if (always_checksum && S_ISREG(mode)) + extra_len += SUM_EXTRA_CNT * EXTRA_LEN; + + if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) + extra_len += EXTRA_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 + dirname_len + basename_len - + linkname_len + sum_len; - bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry"); + alloc_len = FILE_STRUCT_LEN + extra_len + basename_len + dirname_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 */ - file->flags = 0; +#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 (preserve_uid) + F_UID(file) = uid; + if (preserve_gid) + F_GID(file) = gid; if (dirname_len) { file->dirname = lastdir = bp; @@ -642,98 +708,100 @@ static struct file_struct *receive_file_entry(struct file_list *flist, bp += dirname_len; bp[-1] = '\0'; lastdir_depth = count_dir_elements(lastdir); - file->dir.depth = lastdir_depth + 1; + F_DEPTH(file) = lastdir_depth + 1; } else if (dirname) { file->dirname = dirname; /* we're reusing lastname */ - file->dir.depth = lastdir_depth + 1; + 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 = 1; - del_hier_name_len = file->dir.depth == 0 ? 0 : l1 + l2; + in_del_hier = recurse; + del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2; if (relative_paths && del_hier_name_len > 2 - && basename_len == 1+1 && *basename == '.') + && 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 - && thisname[del_hier_name_len] == '/')) - file->flags |= FLAG_DEL_HERE; + && lastname[del_hier_name_len] == '/')) + 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)np->data - 1; + if (ndx < 0) { + ndx = cnt++; + np->data = (void*)cnt; + } + F_HL_GNUM(file) = ndx; } } #endif - if (always_checksum) { - char *sum; - if (sum_len) { - file->u.sum = sum = bp; - /*bp += sum_len;*/ - } else if (protocol_version < 28) { + 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; - } else - sum = NULL; - if (sum) { - read_buf(f, sum, - protocol_version < 21 ? 2 : MD4_SUM_LENGTH); + bp = tmp_sum; } - } - - 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; + 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); } return file; } - /** * Create a file_struct for a named file by reading its stat() * information and performing extensive checks against global @@ -749,41 +817,44 @@ 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, - 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; + int alloc_len, basename_len, dirname_len, linkname_len; + int extra_len = flist_extra_cnt * EXTRA_LEN; char *basename, *dirname, *bp; - unsigned short flags = 0; if (!flist || !flist->count) /* Ignore lastdir when invalid. */ lastdir_len = -1; if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname - flist_dir_len) { - rprintf(FINFO, "skipping overly long name: %s\n", - safe_fname(fname)); + rprintf(FINFO, "skipping overly long name: %s\n", fname); return NULL; } clean_fname(thisname, 0); if (sanitize_paths) - sanitize_path(thisname, thisname, "", 0); - - memset(sum, 0, SUM_LENGTH); + sanitize_path(thisname, thisname, "", 0, NULL); - if (readlink_stat(thisname, &st, linkname) != 0) { + if (stp && S_ISDIR(stp->st_mode)) { + st = *stp; /* Needed for "symlink/." with --relative. */ + *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. */ @@ -814,19 +885,30 @@ struct file_struct *make_file(char *fname, struct file_list *flist, goto skip_filters; if (S_ISDIR(st.st_mode) && !xfer_dirs) { - rprintf(FINFO, "skipping directory %s\n", safe_fname(thisname)); + rprintf(FINFO, "skipping directory %s\n", thisname); 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 - && S_ISDIR(st.st_mode)) - flags |= FLAG_MOUNT_POINT; + && S_ISDIR(st.st_mode)) { + if (one_file_system > 1) { + if (verbose > 2) { + rprintf(FINFO, "skipping mount-point dir %s\n", + thisname); + } + return NULL; + } + 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 @@ -836,11 +918,11 @@ struct file_struct *make_file(char *fname, struct file_list *flist, return NULL; } -skip_filters: + skip_filters: if (verbose > 2) { rprintf(FINFO, "[%s] make_file(%s,*,%d)\n", - who_am_i(), safe_fname(thisname), filter_level); + who_am_i(), thisname, filter_level); } if ((basename = strrchr(thisname, '/')) != NULL) { @@ -864,49 +946,63 @@ skip_filters: linkname_len = 0; #endif - sum_len = always_checksum && 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 (flist) { - bp = pool_alloc(flist->file_pool, alloc_len, - "receive_file_entry"); - } else { +#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 + dirname_len + + linkname_len; + if (flist) + bp = pool_alloc(flist->file_pool, alloc_len, "make_file"); + else { if (!(bp = new_array(char, alloc_len))) - out_of_memory("receive_file_entry"); + 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 (preserve_hard_links && flist) { + 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; } - if (file->link_u.idev) { - file->F_DEV = st.st_dev; - file->F_INODE = st.st_ino; +#endif + +#ifdef HAVE_STRUCT_STAT_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_UID(file) = st.st_uid; + if (preserve_gid) + F_GID(file) = st.st_gid; + if (dirname_len) { file->dirname = lastdir = bp; lastdir_len = dirname_len - 1; @@ -916,45 +1012,33 @@ skip_filters: } 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; -#endif - #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. */ if (keep_dirlinks && linkname_len && flist) { STRUCT_STAT st2; int save_mode = file->mode; - file->mode = S_IFDIR; /* find a directory w/our name */ + file->mode = S_IFDIR; /* Find a directory with our name. */ if (flist_find(the_file_list, 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_UID(file) = st2.st_uid; + if (preserve_gid) + F_GID(file) = st2.st_gid; } else file->mode = save_mode; } @@ -962,37 +1046,54 @@ skip_filters: if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) stats.total_size += st.st_size; + if (basename_len == 0+1) + return NULL; + return file; } +/* Only called for temporary file_struct entries created by make_file(). */ +void unmake_file(struct file_struct *file) +{ + int extra_cnt = flist_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, unsigned short base_flags) + char *fname, STRUCT_STAT *stp, + unsigned short flags) { struct file_struct *file; - file = make_file(fname, flist, f == -2 ? SERVER_FILTERS : ALL_FILTERS); + file = make_file(fname, flist, stp, flags, + f == -2 ? SERVER_FILTERS : ALL_FILTERS); if (!file) return NULL; + if (chmod_modes && !S_ISLNK(file->mode)) + file->mode = tweak_mode(file->mode, chmod_modes); + 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, base_flags); - } + flist->files[flist->count++] = file; + if (f >= 0) + send_file_entry(file, f, flist->count - 1); return file; } static void send_if_directory(int f, struct file_list *flist, - struct file_struct *file) + struct file_struct *file, + char *fbuf, unsigned int ol) { - char fbuf[MAXPATHLEN]; + char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/'); if (S_ISDIR(file->mode) - && !(file->flags & FLAG_MOUNT_POINT) && f_name_to(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] == '/') @@ -1006,17 +1107,18 @@ static void send_if_directory(int f, struct file_list *flist, save_filters = push_local_filters(fbuf, len); send_directory(f, flist, fbuf, len); pop_local_filters(save_filters); + fbuf[ol] = '\0'; + if (is_dot_dir) + fbuf[ol-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, char *fbuf, int len) { struct dirent *di; unsigned remainder; @@ -1041,14 +1143,15 @@ static void send_directory(int f, struct file_list *flist, if (dname[0] == '.' && (dname[1] == '\0' || (dname[1] == '.' && dname[2] == '\0'))) continue; - if (strlcpy(p, dname, remainder) < remainder) - send_file_name(f, flist, fbuf, 0); - else { + if (strlcpy(p, dname, remainder) >= remainder) { io_error |= IOERR_GENERAL; rprintf(FINFO, "cannot send long-named file %s\n", full_fname(fbuf)); + continue; } + + send_file_name(f, flist, fbuf, NULL, 0); } fbuf[len] = '\0'; @@ -1062,15 +1165,15 @@ static void send_directory(int f, struct file_list *flist, 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]); + send_if_directory(f, flist, flist->files[i], fbuf, len); } } - struct file_list *send_file_list(int f, int argc, char *argv[]) { - int l; + int len; STRUCT_STAT st; char *p, *dir, olddir[sizeof curr_dir]; char lastpath[MAXPATHLEN] = ""; @@ -1079,17 +1182,23 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) int64 start_write; int use_ff_fd = 0; + rprintf(FLOG, "building file list\n"); if (show_filelist_p()) start_filelist_progress("building file list"); 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) + init_hard_links(); +#endif + + flist = flist_new("send_file_list"); io_start_buffering_out(); if (filesfrom_fd >= 0) { - if (argv[0] && !push_dir(argv[0])) { + if (argv[0] && !push_dir(argv[0], 0)) { rsyserr(FERROR, errno, "push_dir %s failed", full_fname(argv[0])); exit_cleanup(RERR_FILESELECT); @@ -1098,58 +1207,59 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) } while (1) { - struct file_struct *file; - char fname2[MAXPATHLEN]; - char *fname = fname2; + char fbuf[MAXPATHLEN]; + char *fn; int is_dot_dir; if (use_ff_fd) { - if (read_filesfrom_line(filesfrom_fd, fname) == 0) + if (read_filesfrom_line(filesfrom_fd, fbuf) == 0) break; - sanitize_path(fname, fname, "", 0); + sanitize_path(fbuf, fbuf, "", 0, NULL); } else { if (argc-- == 0) break; - strlcpy(fname, *argv++, MAXPATHLEN); + strlcpy(fbuf, *argv++, MAXPATHLEN); if (sanitize_paths) - sanitize_path(fname, fname, "", 0); + sanitize_path(fbuf, fbuf, "", 0, NULL); } - l = strlen(fname); - if (!l || fname[l - 1] == '/') { - if (l == 2 && fname[0] == '.') { + len = strlen(fbuf); + if (relative_paths) { + /* We clean up fbuf below. */ + is_dot_dir = 0; + } else if (!len || fbuf[len - 1] == '/') { + if (len == 2 && fbuf[0] == '.') { /* Turn "./" into just "." rather than "./." */ - fname[1] = '\0'; + fbuf[1] = '\0'; } else { - if (l + 1 >= MAXPATHLEN) + if (len + 1 >= MAXPATHLEN) overflow_exit("send_file_list"); - fname[l++] = '.'; - fname[l] = '\0'; + fbuf[len++] = '.'; + fbuf[len] = '\0'; } is_dot_dir = 1; - } else if (l > 1 && fname[l-1] == '.' && fname[l-2] == '.' - && (l == 2 || fname[l-3] == '/')) { - if (l + 2 >= MAXPATHLEN) + } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.' + && (len == 2 || fbuf[len-3] == '/')) { + if (len + 2 >= MAXPATHLEN) overflow_exit("send_file_list"); - fname[l++] = '/'; - fname[l++] = '.'; - fname[l] = '\0'; + fbuf[len++] = '/'; + fbuf[len++] = '.'; + fbuf[len] = '\0'; is_dot_dir = 1; } else { - is_dot_dir = fname[l-1] == '.' - && (l == 1 || fname[l-2] == '/'); + is_dot_dir = fbuf[len-1] == '.' + && (len == 1 || fbuf[len-2] == '/'); } - if (link_stat(fname, &st, keep_dirlinks) != 0) { + if (link_stat(fbuf, &st, copy_dirlinks) != 0) { io_error |= IOERR_GENERAL; rsyserr(FERROR, errno, "link_stat %s failed", - full_fname(fname)); + full_fname(fbuf)); continue; } if (S_ISDIR(st.st_mode) && !xfer_dirs) { - rprintf(FINFO, "skipping directory %s\n", - safe_fname(fname)); + rprintf(FINFO, "skipping directory %s\n", fbuf); continue; } @@ -1157,56 +1267,74 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) olddir[0] = '\0'; if (!relative_paths) { - p = strrchr(fname, '/'); + p = strrchr(fbuf, '/'); if (p) { *p = '\0'; - if (p == fname) + if (p == fbuf) dir = "/"; else - dir = fname; - fname = p + 1; - } - } else if (implied_dirs && (p=strrchr(fname,'/')) && p != fname) { - /* Send the implied directories at the start of the - * source spec, so we get their permissions right. */ - char *lp = lastpath, *fn = fname, *slash = fname; - *p = '\0'; - /* Skip any initial directories in our path that we - * have in common with lastpath. */ - while (*fn && *lp == *fn) { - if (*fn == '/') - slash = fn; - lp++, fn++; + dir = fbuf; + len -= p - fbuf + 1; + fn = p + 1; + } else + fn = fbuf; + } else { + if ((p = strstr(fbuf, "/./")) != NULL) { + *p = '\0'; + if (p == fbuf) + dir = "/"; + else + dir = fbuf; + len -= p - fbuf + 3; + fn = p + 3; + } else + fn = fbuf; + /* Get rid of trailing "/" and "/.". */ + while (len) { + if (fn[len - 1] == '/') { + is_dot_dir = 1; + if (!--len && !dir) { + len++; + break; + } + } + else if (len >= 2 && fn[len - 1] == '.' + && fn[len - 2] == '/') { + is_dot_dir = 1; + if (!(len -= 2) && !dir) { + len++; + break; + } + } else + break; } - *p = '/'; - if (fn != p || (*lp && *lp != '/')) { - int save_copy_links = copy_links; - int save_xfer_dirs = xfer_dirs; - copy_links = copy_unsafe_links; - xfer_dirs = 1; - while ((slash = strchr(slash+1, '/')) != 0) { - *slash = '\0'; - send_file_name(f, flist, fname, 0); - *slash = '/'; + 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) { + if ((p[2] == '/' || p[2] == '\0') + && (p == fn || p[-1] == '/')) { + rprintf(FERROR, + "found \"..\" dir in relative path: %s\n", + fbuf); + exit_cleanup(RERR_SYNTAX); } - copy_links = save_copy_links; - xfer_dirs = save_xfer_dirs; - *p = '\0'; - strlcpy(lastpath, fname, sizeof lastpath); - *p = '/'; } } - if (!*fname) - fname = "."; + if (!*fn) { + len = 1; + fn = "."; + } if (dir && *dir) { - static char *lastdir; + static const char *lastdir; static int lastdir_len; - strcpy(olddir, curr_dir); /* can't overflow */ + strlcpy(olddir, curr_dir, sizeof olddir); - if (!push_dir(dir)) { + if (!push_dir(dir, 0)) { io_error |= IOERR_GENERAL; rsyserr(FERROR, errno, "push_dir %s failed", full_fname(dir)); @@ -1222,20 +1350,56 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) } } + if (fn != fbuf) + memmove(fbuf, fn, len + 1); + + 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. */ + char *lp = lastpath, *slash = fbuf; + *p = '\0'; + /* Skip any initial directories in our path that we + * have in common with lastpath. */ + for (fn = fbuf; *fn && *lp == *fn; lp++, fn++) { + if (*fn == '/') + slash = fn; + } + *p = '/'; + if (fn != p || (*lp && *lp != '/')) { + int save_copy_links = copy_links; + int save_xfer_dirs = xfer_dirs; + copy_links |= copy_unsafe_links; + xfer_dirs = 1; + while ((slash = strchr(slash+1, '/')) != 0) { + *slash = '\0'; + send_file_name(f, flist, fbuf, NULL, 0); + *slash = '/'; + } + copy_links = save_copy_links; + xfer_dirs = save_xfer_dirs; + *p = '\0'; + strlcpy(lastpath, fbuf, sizeof lastpath); + *p = '/'; + } + } + if (one_file_system) filesystem_dev = st.st_dev; - if ((file = send_file_name(f, flist, fname, XMIT_TOP_DIR))) { - if (recurse || (xfer_dirs && is_dot_dir)) - send_if_directory(f, flist, file); - } + 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); + } 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(dir)); + full_fname(olddir)); exit_cleanup(RERR_FILESELECT); } } @@ -1248,7 +1412,12 @@ 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, 0); + write_byte(f, 0); /* Indicate end of file list */ + +#ifdef SUPPORT_HARD_LINKS + if (preserve_hard_links && protocol_version >= 30) + idev_destroy(); +#endif if (show_filelist_p()) finish_filelist_progress(flist); @@ -1257,20 +1426,14 @@ 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); - /* Now send the uid/gid list. This was introduced in - * protocol version 15 */ - send_uid_list(f); + if (!numeric_ids) + send_uid_list(f); /* send the io_error flag */ write_int(f, lp_ignore_errors(module_id) ? 0 : io_error); @@ -1288,26 +1451,24 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) return flist; } - struct file_list *recv_file_list(int f) { struct file_list *flist; unsigned short flags; int64 start_read; + rprintf(FLOG, "receiving file list\n"); if (show_filelist_p()) start_filelist_progress("receiving file list"); start_read = stats.total_read; - flist = flist_new(WITH_HLINK, "recv_file_list"); - - flist->count = 0; - flist->malloced = 1000; - flist->files = new_array(struct file_struct *, flist->malloced); - if (!flist->files) - goto oom; + flist = flist_new("recv_file_list"); +#ifdef SUPPORT_HARD_LINKS + if (preserve_hard_links && protocol_version < 30) + init_hard_links(); +#endif while ((flags = read_byte(f)) != 0) { struct file_struct *file; @@ -1316,10 +1477,10 @@ 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 (S_ISREG(file->mode) || S_ISLNK(file->mode)) + stats.total_size += F_LENGTH(file); flist->files[flist->count++] = file; @@ -1327,10 +1488,10 @@ struct file_list *recv_file_list(int f) if (verbose > 2) { rprintf(FINFO, "recv_file_name(%s)\n", - safe_fname(f_name(file))); + f_name(file, NULL)); } } - receive_file_entry(NULL, 0, 0); /* Signal that we're done. */ + recv_file_entry(NULL, 0, 0); /* Signal that we're done. */ if (verbose > 2) rprintf(FINFO, "received %d names\n", flist->count); @@ -1341,8 +1502,6 @@ struct file_list *recv_file_list(int f) clean_flist(flist, relative_paths, 1); if (f >= 0) { - /* Now send the uid/gid list. This was introduced in - * protocol version 15 */ recv_uid_list(f, flist); /* Recv the io_error flag */ @@ -1368,65 +1527,81 @@ struct file_list *recv_file_list(int f) 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) { return f_name_cmp(*file1, *file2); } - /* Search for an identically-named item in the file list. Note that the * items must agree in their directory-ness, or no match is returned. */ 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; } - /* * 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(char *msg) { struct file_list *flist; @@ -1434,41 +1609,29 @@ 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))) + 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); - } -#endif - return flist; } -/* - * free up all elements in a flist - */ +/* Free up all elements in a flist. */ void flist_free(struct file_list *flist) { pool_destroy(flist->file_pool); - pool_destroy(flist->hlink_pool); free(flist->files); free(flist); } - /* * This routine ensures we don't have any duplicate names in our file list. * duplicate names can cause corruption because of the pipelining */ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) { + char fbuf[MAXPATHLEN]; int i, prev_i = 0; if (!flist) @@ -1478,13 +1641,11 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) return; } - sorting_flist = flist; qsort(flist->files, flist->count, sizeof flist->files[0], (int (*)())file_compare); - sorting_flist = NULL; 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; } @@ -1494,7 +1655,7 @@ 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; @@ -1524,19 +1685,19 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) if (verbose > 1 && !am_server) { rprintf(FINFO, "removing duplicate name %s from file list (%d)\n", - safe_fname(f_name(file)), 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; } @@ -1555,48 +1716,118 @@ 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 empty 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; 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 ? safe_fname(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); } } - enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING }; enum fnc_type { t_PATH, t_ITEM }; @@ -1623,12 +1854,12 @@ 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; @@ -1637,34 +1868,26 @@ 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; @@ -1673,9 +1896,7 @@ 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: @@ -1684,7 +1905,7 @@ 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; @@ -1714,7 +1935,7 @@ 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; @@ -1738,55 +1959,55 @@ 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. No size-checking is done because we checked the size when creating - * the file_struct entry. + * 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_to(struct file_struct *f, char *fbuf) +char *f_name(struct file_struct *f, char *fbuf) { - if (!f || !f->basename) + if (!f || !F_IS_ACTIVE(f)) return NULL; + 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); - return fbuf; -} + strlcpy(fbuf, f->basename, MAXPATHLEN); - -/* Like f_name_to(), but we rotate through 5 static buffers of our own. */ -char *f_name(struct file_struct *f) -{ - static char names[5][MAXPATHLEN]; - static unsigned int n; - - n = (n + 1) % (sizeof names / sizeof names[0]); - - return f_name_to(f, names[n]); + return fbuf; } - /* Do a non-recursive scan of the named directory, possibly ignoring all * exclude rules except for the daemon's. If "dlen" is >=0, it is the length * 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); @@ -1795,10 +2016,12 @@ struct file_list *get_dirlist(char *dirname, int dlen, dirname = dirbuf; } - dirlist = flist_new(WITHOUT_HLINK, "get_dirlist"); + dirlist = flist_new("get_dirlist"); recurse = 0; + xfer_dirs = 1; send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen); + xfer_dirs = save_xfer_dirs; recurse = save_recurse; if (do_progress) flist_count_offset += dirlist->count;