-/*
- Copyright (C) Andrew Tridgell 1996
- Copyright (C) Paul Mackerras 1996
-
- 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.
-*/
-
-/* generate and receive file lists */
+/*
+ * Generate and receive file lists.
+ *
+ * Copyright (C) 1996 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
+ * 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 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 off_t total_size;
-
-extern int cvs_exclude;
-
+extern int module_id;
+extern int ignore_errors;
+extern int numeric_ids;
+extern int recurse;
+extern int xfer_dirs;
+extern int filesfrom_fd;
extern int one_file_system;
-extern int make_backups;
+extern int copy_dirlinks;
+extern int keep_dirlinks;
+extern int preserve_acls;
+extern int preserve_xattrs;
extern int preserve_links;
-extern int preserve_perms;
+extern int preserve_hard_links;
extern int preserve_devices;
+extern int preserve_specials;
extern int preserve_uid;
extern int preserve_gid;
-extern int preserve_times;
+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 struct stats stats;
+
+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 */
+
+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 **local_exclude_list = NULL;
+static char empty_sum[MAX_DIGEST_LEN];
+static int flist_count_offset; /* for --delete --progress */
-static void clean_fname(char *name);
-
-
-/*
- This function is used to check if a file should be included/excluded
- from the list of files based on its name and type etc
- */
-static int match_file_name(char *fname,struct stat *st)
-{
- if (check_exclude(fname,local_exclude_list)) {
- if (verbose > 2)
- fprintf(stderr,"excluding file %s\n",fname);
- return 0;
- }
- return 1;
-}
-
-/* used by the one_file_system code */
-static dev_t filesystem_dev;
-
-static void set_filesystem(char *fname)
-{
- struct stat st;
- if (lstat(fname,&st) != 0) return;
- filesystem_dev = st.st_dev;
-}
-
-
-static void send_directory(int f,struct file_list *flist,char *dir);
-
-static char *flist_dir = NULL;
-
-#define FILE_VALID 1
-#define SAME_MODE (1<<1)
-#define SAME_DEV (1<<2)
-#define SAME_UID (1<<3)
-#define SAME_GID (1<<4)
-#define SAME_DIR (1<<5)
-
-static void send_file_entry(struct file_struct *file,int f)
-{
- unsigned char flags;
- static mode_t last_mode=0;
- static dev_t last_dev=0;
- static uid_t last_uid=0;
- static gid_t last_gid=0;
- static char lastdir[MAXPATHLEN]="";
- char *p=NULL;
-
- if (f == -1) return;
-
- if (!file) {
- write_byte(f,0);
- return;
- }
-
- flags = FILE_VALID;
-
- if (file->mode == last_mode) flags |= SAME_MODE;
- if (file->dev == last_dev) flags |= SAME_DEV;
- if (file->uid == last_uid) flags |= SAME_UID;
- if (file->gid == last_gid) flags |= SAME_GID;
-
- if (strncmp(file->name,lastdir,strlen(lastdir)) == 0) {
- flags |= SAME_DIR;
- p = file->name + strlen(lastdir);
- } else {
- p = file->name;
- }
-
- write_byte(f,flags);
- if (flags & SAME_DIR)
- write_byte(f,strlen(p));
- else
- write_int(f,strlen(p));
- write_buf(f,p,strlen(p));
- write_int(f,(int)file->modtime);
- write_int(f,(int)file->length);
- if (!(flags & SAME_MODE))
- write_int(f,(int)file->mode);
- if (preserve_uid && !(flags & SAME_UID))
- write_int(f,(int)file->uid);
- if (preserve_gid && !(flags & SAME_GID))
- write_int(f,(int)file->gid);
- if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_DEV))
- write_int(f,(int)file->dev);
-
-#if SUPPORT_LINKS
- if (preserve_links && S_ISLNK(file->mode)) {
- write_int(f,strlen(file->link));
- write_buf(f,file->link,strlen(file->link));
- }
-#endif
-
- if (always_checksum) {
- write_buf(f,file->sum,SUM_LENGTH);
- }
-
- last_mode = file->mode;
- last_dev = file->dev;
- last_uid = file->uid;
- last_gid = file->gid;
- p = strrchr(file->name,'/');
- if (p) {
- int l = (int)(p - file->name) + 1;
- strncpy(lastdir,file->name,l);
- lastdir[l] = 0;
- } else {
- strcpy(lastdir,"");
- }
-}
-
-
-
-static void receive_file_entry(struct file_struct *file,
- unsigned char flags,int f)
-{
- static mode_t last_mode=0;
- static dev_t last_dev=0;
- static uid_t last_uid=0;
- static gid_t last_gid=0;
- static char lastdir[MAXPATHLEN]="";
- char *p=NULL;
- int l1,l2;
-
- if (flags & SAME_DIR) {
- l1 = read_byte(f);
- l2 = strlen(lastdir);
- } else {
- l1 = read_int(f);
- l2 = 0;
- }
-
- file->name = (char *)malloc(l1+l2+1);
- if (!file->name) out_of_memory("receive_file_entry");
-
- strncpy(file->name,lastdir,l2);
- read_buf(f,file->name+l2,l1);
- file->name[l1+l2] = 0;
-
- file->modtime = (time_t)read_int(f);
- file->length = (off_t)read_int(f);
- file->mode = (flags & SAME_MODE) ? last_mode : (mode_t)read_int(f);
- if (preserve_uid)
- file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f);
- if (preserve_gid)
- file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
- if (preserve_devices && IS_DEVICE(file->mode))
- file->dev = (flags & SAME_DEV) ? last_dev : (dev_t)read_int(f);
-
-#if SUPPORT_LINKS
- if (preserve_links && S_ISLNK(file->mode)) {
- int l = read_int(f);
- file->link = (char *)malloc(l+1);
- if (!file->link) out_of_memory("receive_file_entry");
- read_buf(f,file->link,l);
- file->link[l] = 0;
- }
-#endif
-
- if (always_checksum)
- read_buf(f,file->sum,SUM_LENGTH);
-
- last_mode = file->mode;
- last_dev = file->dev;
- last_uid = file->uid;
- last_gid = file->gid;
- p = strrchr(file->name,'/');
- if (p) {
- int l = (int)(p - file->name) + 1;
- strncpy(lastdir,file->name,l);
- lastdir[l] = 0;
- } else {
- strcpy(lastdir,"");
- }
-}
-
-
-static struct file_struct *make_file(int recurse,char *fname)
-{
- static struct file_struct file;
- struct stat st;
- char sum[SUM_LENGTH];
-
- bzero(sum,SUM_LENGTH);
-
- if (lstat(fname,&st) != 0) {
- fprintf(stderr,"%s: %s\n",
- fname,strerror(errno));
- return NULL;
- }
-
- if (S_ISDIR(st.st_mode) && !recurse) {
- fprintf(stderr,"skipping directory %s\n",fname);
- return NULL;
- }
-
- if (one_file_system && st.st_dev != filesystem_dev)
- return NULL;
-
- if (!match_file_name(fname,&st))
- return NULL;
-
- if (verbose > 2)
- fprintf(stderr,"make_file(%s)\n",fname);
-
- file.name = strdup(fname);
- 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;
-#ifdef HAVE_ST_RDEV
- file.dev = st.st_rdev;
-#endif
-
-#if SUPPORT_LINKS
- if (S_ISLNK(st.st_mode)) {
- int l;
- char lnk[MAXPATHLEN];
- if ((l=readlink(fname,lnk,MAXPATHLEN-1)) == -1) {
- fprintf(stderr,"readlink %s : %s\n",fname,strerror(errno));
- return NULL;
- }
- lnk[l] = 0;
- file.link = strdup(lnk);
- }
-#endif
-
- if (always_checksum && S_ISREG(st.st_mode)) {
- file_checksum(fname,file.sum,st.st_size);
- }
-
- if (flist_dir)
- file.dir = strdup(flist_dir);
- else
- file.dir = NULL;
-
- if (!S_ISDIR(st.st_mode))
- total_size += st.st_size;
-
- return &file;
-}
+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)
+{
+ 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 && !inc_recurse;
+}
-static void send_file_name(int f,struct file_list *flist,
- int recurse,char *fname)
+static void start_filelist_progress(char *kind)
{
- struct file_struct *file;
+ rprintf(FCLIENT, "%s ... ", kind);
+ if (verbose > 1 || do_progress)
+ rprintf(FCLIENT, "\n");
+ rflush(FINFO);
+}
- file = make_file(recurse,fname);
+static void emit_filelist_progress(int count)
+{
+ rprintf(FCLIENT, " %d files...\r", count);
+}
- if (!file) return;
-
- if (flist->count >= flist->malloced) {
- flist->malloced += 100;
- flist->files = (struct file_struct *)realloc(flist->files,
- sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- out_of_memory("send_file_name");
- }
+static void maybe_emit_filelist_progress(int count)
+{
+ if (do_progress && show_filelist_p() && (count % 100) == 0)
+ emit_filelist_progress(count);
+}
- if (strcmp(file->name,".") && strcmp(file->name,"/")) {
- flist->files[flist->count++] = *file;
- send_file_entry(file,f);
- }
+static void finish_filelist_progress(const struct file_list *flist)
+{
+ if (do_progress) {
+ /* This overwrites the progress line */
+ rprintf(FINFO, "%d file%sto consider\n",
+ flist->count, flist->count == 1 ? " " : "s ");
+ } else
+ rprintf(FINFO, "done\n");
+}
- if (S_ISDIR(file->mode) && recurse) {
- char **last_exclude_list = local_exclude_list;
- send_directory(f,flist,file->name);
- local_exclude_list = last_exclude_list;
- return;
- }
+void show_flist_stats(void)
+{
+ /* Nothing yet */
}
+static void list_file_entry(struct file_struct *f)
+{
+ char permbuf[PERMSTRING_SIZE];
+ double len;
+
+ if (!F_IS_ACTIVE(f)) {
+ /* this can happen if duplicate names were removed */
+ return;
+ }
+ permstring(permbuf, f->mode);
+ len = F_LENGTH(f);
-static void send_directory(int f,struct file_list *flist,char *dir)
-{
- DIR *d;
- struct dirent *di;
- char fname[MAXPATHLEN];
- int l;
- char *p;
-
- d = opendir(dir);
- if (!d) {
- fprintf(stderr,"%s: %s\n",
- dir,strerror(errno));
- return;
- }
-
- strcpy(fname,dir);
- l = strlen(fname);
- if (fname[l-1] != '/')
- strcat(fname,"/");
- p = fname + strlen(fname);
-
- if (cvs_exclude) {
- strcpy(p,".cvsignore");
- local_exclude_list = make_exclude_list(fname,NULL,0);
- }
-
- for (di=readdir(d); di; di=readdir(d)) {
- if (strcmp(di->d_name,".")==0 ||
- strcmp(di->d_name,"..")==0)
- continue;
- strcpy(p,di->d_name);
- send_file_name(f,flist,1,fname);
- }
-
- closedir(d);
+ /* 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",
+ permbuf, len, timestring(f->modtime),
+ f_name(f, NULL), F_SYMLINK(f));
+ } else
+#endif
+ {
+ rprintf(FINFO, "%s %11.0f %s %s\n",
+ 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. Returns -1 on error, 0 on success.
+ *
+ * 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.
+ *
+ * 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 (link_stat(path, stp, copy_dirlinks) < 0)
+ return -1;
+ if (S_ISLNK(stp->st_mode)) {
+ int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
+ if (llen < 0)
+ return -1;
+ 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, stp);
+ }
+ }
+ return 0;
+#else
+ return do_stat(path, stp);
+#endif
+}
+int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
+{
+#ifdef SUPPORT_LINKS
+ if (copy_links)
+ return do_stat(path, stp);
+ if (do_lstat(path, stp) < 0)
+ return -1;
+ if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
+ STRUCT_STAT st;
+ if (do_stat(path, &st) == 0 && S_ISDIR(st.st_mode))
+ *stp = st;
+ }
+ return 0;
+#else
+ return do_stat(path, stp);
+#endif
+}
-struct file_list *send_file_list(int f,int recurse,int argc,char *argv[])
-{
- int i,l;
- struct stat st;
- char *p,*dir;
- char dbuf[MAXPATHLEN];
- struct file_list *flist;
-
- if (verbose && recurse) {
- fprintf(am_server?stderr:stdout,"building file list ... ");
- fflush(am_server?stderr:stdout);
- }
-
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist) out_of_memory("send_file_list");
-
- flist->count=0;
- flist->malloced = 100;
- flist->files = (struct file_struct *)malloc(sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files) out_of_memory("send_file_list");
+/* This function is used to check if a file should be included/excluded
+ * from the list of files based on its name and type etc. The value of
+ * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
+static int is_excluded(char *fname, int is_dir, int filter_level)
+{
+#if 0 /* This currently never happens, so avoid a useless compare. */
+ if (filter_level == NO_FILTERS)
+ return 0;
+#endif
+ if (fname) {
+ /* never exclude '.', even if somebody does --exclude '*' */
+ if (fname[0] == '.' && !fname[1])
+ return 0;
+ /* Handle the -R version of the '.' dir. */
+ if (fname[0] == '/') {
+ int len = strlen(fname);
+ if (fname[len-1] == '.' && fname[len-2] == '/')
+ return 0;
+ }
+ }
+ if (server_filter_list.head
+ && check_filter(&server_filter_list, fname, is_dir) < 0)
+ return 1;
+ if (filter_level != ALL_FILTERS)
+ return 0;
+ if (filter_list.head
+ && check_filter(&filter_list, fname, is_dir) < 0)
+ return 1;
+ return 0;
+}
- for (i=0;i<argc;i++) {
- char fname2[MAXPATHLEN];
- char *fname = fname2;
-
- strcpy(fname,argv[i]);
-
- l = strlen(fname);
- if (l != 1 && fname[l-1] == '/') {
- strcat(fname,".");
- }
-
- if (lstat(fname,&st) != 0) {
- fprintf(stderr,"%s : %s\n",fname,strerror(errno));
- continue;
- }
-
- if (S_ISDIR(st.st_mode) && !recurse) {
- fprintf(stderr,"skipping directory %s\n",fname);
- continue;
- }
-
- dir = NULL;
- p = strrchr(fname,'/');
- if (p) {
- *p = 0;
- dir = fname;
- fname = p+1;
- }
- if (!*fname)
- fname = ".";
-
- if (dir && *dir) {
- if (getcwd(dbuf,MAXPATHLEN-1) == NULL) {
- fprintf(stderr,"getwd : %s\n",strerror(errno));
- exit(1);
- }
- if (chdir(dir) != 0) {
- fprintf(stderr,"chdir %s : %s\n",dir,strerror(errno));
- continue;
- }
- flist_dir = dir;
- if (one_file_system)
- set_filesystem(fname);
- send_file_name(f,flist,recurse,fname);
- flist_dir = NULL;
- if (chdir(dbuf) != 0) {
- fprintf(stderr,"chdir %s : %s\n",dbuf,strerror(errno));
- exit(1);
- }
- continue;
- }
-
- if (one_file_system)
- set_filesystem(fname);
- send_file_name(f,flist,recurse,fname);
- }
-
- if (f != -1) {
- send_file_entry(NULL,f);
- write_flush(f);
- }
-
- clean_flist(flist);
-
- if (verbose && recurse)
- fprintf(am_server?stderr:stdout,"done\n");
-
- return flist;
+static int to_wire_mode(mode_t mode)
+{
+#ifdef SUPPORT_LINKS
+#if _S_IFLNK != 0120000
+ if (S_ISLNK(mode))
+ return (mode & ~(_S_IFMT)) | 0120000;
+#endif
+#endif
+ return mode;
+}
+
+static mode_t from_wire_mode(int mode)
+{
+#if _S_IFLNK != 0120000
+ if ((mode & (_S_IFMT)) == 0120000)
+ return (mode & ~(_S_IFMT)) | _S_IFLNK;
+#endif
+ return mode;
}
+static void send_directory(int f, struct file_list *flist, int ndx,
+ char *fbuf, int len, int flags);
-struct file_list *recv_file_list(int f)
+static const char *flist_dir, *orig_dir;
+static int flist_dir_len;
+
+
+/**
+ * Make sure @p flist is big enough to hold at least @p flist->count
+ * entries.
+ **/
+void flist_expand(struct file_list *flist)
{
- struct file_list *flist;
- unsigned char flags;
+ struct file_struct **new_ptr;
+
+ if (flist->count < flist->malloced)
+ return;
+
+ if (flist->malloced < FLIST_START)
+ flist->malloced = FLIST_START;
+ else if (flist->malloced >= FLIST_LINEAR)
+ flist->malloced += FLIST_LINEAR;
+ else
+ flist->malloced *= 2;
+
+ /*
+ * In case count jumped or we are starting the list
+ * with a known size just set it.
+ */
+ if (flist->malloced < flist->count)
+ flist->malloced = flist->count;
+
+ new_ptr = realloc_array(flist->files, struct file_struct *,
+ flist->malloced);
+
+ if (verbose >= 2 && flist->malloced != FLIST_START) {
+ 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" : "");
+ }
+
+ flist->files = new_ptr;
+
+ if (!flist->files)
+ out_of_memory("flist_expand");
+}
+
+int push_flist_dir(const char *dir, int len)
+{
+ if (dir == flist_dir)
+ return 1;
- if (verbose > 2)
- fprintf(stderr,"recv_file_list starting\n");
+ if (!orig_dir)
+ orig_dir = strdup(curr_dir);
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist)
- goto oom;
+ if (flist_dir && !pop_dir(orig_dir)) {
+ rsyserr(FERROR, errno, "pop_dir %s failed",
+ full_fname(orig_dir));
+ exit_cleanup(RERR_FILESELECT);
+ }
- flist->count=0;
- flist->malloced=100;
- flist->files = (struct file_struct *)malloc(sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- goto oom;
+ 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)
+{
+ static time_t modtime;
+ static mode_t mode;
+ static int64 dev;
+ static dev_t rdev;
+ 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;
+ int flags;
+
+ f_name(file, fname);
+
+ 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 && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode))) {
+ if (protocol_version < 28) {
+ 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 (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->modtime == modtime)
+ flags |= XMIT_SAME_TIME;
+ else
+ modtime = file->modtime;
+
+#ifdef SUPPORT_HARD_LINKS
+ 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
+
+ for (l1 = 0;
+ lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
+ l1++) {}
+ l2 = strlen(fname+l1);
+
+ if (l1 > 0)
+ flags |= XMIT_SAME_NAME;
+ if (l2 > 255)
+ flags |= XMIT_LONG_NAME;
+
+ /* We must make sure we don't send a zero flag byte or the
+ * other end will terminate the flist transfer. Note that
+ * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
+ * it's harmless way to add a bit to the first flag byte. */
+ if (protocol_version >= 28) {
+ if (!flags && !S_ISDIR(mode))
+ flags |= XMIT_TOP_DIR;
+ if ((flags & 0xFF00) || !flags) {
+ flags |= XMIT_EXTENDED_FLAGS;
+ write_shortint(f, flags);
+ } else
+ write_byte(f, flags);
+ } else {
+ if (!(flags & 0xFF))
+ flags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
+ write_byte(f, flags);
+ }
+ if (flags & XMIT_SAME_NAME)
+ write_byte(f, l1);
+ if (flags & XMIT_LONG_NAME)
+ write_varint30(f, l2);
+ else
+ write_byte(f, l2);
+ write_buf(f, fname + l1, l2);
+
+ if (first_hlink_ndx >= 0) {
+ write_varint30(f, first_hlink_ndx);
+ goto the_end;
+ }
+
+ write_varlong30(f, F_LENGTH(file), 3);
+ if (!(flags & XMIT_SAME_TIME)) {
+ if (protocol_version >= 30)
+ write_varlong(f, modtime, 4);
+ else
+ write_int(f, modtime);
+ }
+ if (!(flags & XMIT_SAME_MODE))
+ write_int(f, to_wire_mode(mode));
+ if (preserve_uid && !(flags & XMIT_SAME_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 (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))
+ || (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_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));
+ }
+ }
+
+#ifdef SUPPORT_LINKS
+ if (preserve_links && S_ISLNK(mode)) {
+ 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 (tmp_dev != 0 && protocol_version < 30) {
+ if (protocol_version < 26) {
+ /* 32-bit dev_t and ino_t */
+ write_int(f, (int32)dev);
+ write_int(f, (int32)tmp_ino);
+ } else {
+ /* 64-bit dev_t and ino_t */
+ if (!(flags & XMIT_SAME_DEV_pre30))
+ write_longint(f, dev);
+ write_longint(f, tmp_ino);
+ }
+ }
+#endif
+
+ if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
+ const char *sum;
+ if (S_ISREG(mode))
+ sum = tmp_sum;
+ else {
+ /* Prior to 28, we sent a useless set of nulls. */
+ sum = empty_sum;
+ }
+ write_buf(f, sum, checksum_len);
+ }
+
+ the_end:
+ strlcpy(lastname, fname, MAXPATHLEN);
+
+ if (S_ISREG(mode) || S_ISLNK(mode))
+ stats.total_size += F_LENGTH(file);
+}
+
+static struct file_struct *recv_file_entry(struct file_list *flist,
+ int flags, int f)
+{
+ static time_t modtime;
+ static mode_t mode;
+ static int64 dev;
+ static dev_t rdev;
+ static uint32 rdev_major;
+ static uid_t uid;
+ static gid_t gid;
+ static char lastname[MAXPATHLEN], *lastdir;
+ static int lastdir_depth, lastdir_len = -1;
+ static unsigned int del_hier_name_len = 0;
+ static int in_del_hier = 0;
+ char thisname[MAXPATHLEN];
+ unsigned int l1 = 0, l2 = 0;
+ int alloc_len, basename_len, linkname_len;
+ int extra_len = file_extra_cnt * EXTRA_LEN;
+ int first_hlink_ndx = -1;
+ OFF_T file_length;
+ const char *basename;
+ char *bp;
+ struct file_struct *file;
+
+ if (flags & XMIT_SAME_NAME)
+ l1 = read_byte(f);
+
+ if (flags & XMIT_LONG_NAME)
+ 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 [%s]\n",
+ flags, l1, l2, lastname, who_am_i());
+ overflow_exit("recv_file_entry");
+ }
+
+ strlcpy(thisname, lastname, l1 + 1);
+ read_sbuf(f, &thisname[l1], l2);
+ thisname[l1 + l2] = 0;
+
+ strlcpy(lastname, thisname, MAXPATHLEN);
+
+ clean_fname(thisname, 0);
+
+ if (sanitize_paths)
+ sanitize_path(thisname, thisname, "", 0, NULL);
+
+ if ((basename = strrchr(thisname, '/')) != NULL) {
+ 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;
+ 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_varlong30(f, 3);
+ if (!(flags & XMIT_SAME_TIME)) {
+ if (protocol_version >= 30)
+ modtime = (time_t)read_varlong(f, 4);
+ else
+ 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)) {
+ 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 && IS_DEVICE(mode))
+ || (preserve_specials && IS_SPECIAL(mode))) {
+ if (protocol_version < 28) {
+ 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_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);
+ }
+ 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_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("recv_file_entry");
+ }
+ }
+ else
+#endif
+ linkname_len = 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;
+
+#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;
+ 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->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;
+ 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
+ F_DEPTH(file) = 1;
+
+ if (S_ISDIR(mode)) {
+ if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
+ F_DEPTH(file)--;
+ if (flags & XMIT_TOP_DIR) {
+ in_del_hier = recurse;
+ 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_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_XFER_DIR;
+ else
+ in_del_hier = 0;
+ }
+ }
+
+ 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) {
+ 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, NULL);
+ }
+#endif
+
+#ifdef SUPPORT_HARD_LINKS
+ 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 {
+ 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 && (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. */
+ bp = tmp_sum;
+ }
+ 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);
+ }
+
+#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;
+}
+
+/**
+ * Create a file_struct for a named file by reading its stat()
+ * information and performing extensive checks against global
+ * options.
+ *
+ * @return the new file, or NULL if there was an error or this file
+ * should be excluded.
+ *
+ * @todo There is a small optimization opportunity here to avoid
+ * stat()ing the file in some circumstances, which has a certain cost.
+ * We are called immediately after doing readdir(), and so we may
+ * already know the d_type of the file. We could for example avoid
+ * 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(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 thisname[MAXPATHLEN];
+ char linkname[MAXPATHLEN];
+ 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) {
+ rprintf(FINFO, "skipping overly long name: %s\n", fname);
+ return NULL;
+ }
+ clean_fname(thisname, 0);
+ if (sanitize_paths)
+ sanitize_path(thisname, thisname, "", 0, NULL);
+
+ 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, 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. */
+ if (copy_links && do_lstat(thisname, &st) == 0
+ && S_ISLNK(st.st_mode)) {
+ io_error |= IOERR_GENERAL;
+ rprintf(FERROR, "symlink has no referent: %s\n",
+ full_fname(thisname));
+ } else
+#endif
+ {
+ enum logcode c = am_daemon && protocol_version < 28
+ ? FERROR : FINFO;
+ io_error |= IOERR_VANISHED;
+ rprintf(c, "file has vanished: %s\n",
+ full_fname(thisname));
+ }
+ } else {
+ io_error |= IOERR_GENERAL;
+ rsyserr(FERROR, save_errno, "readlink %s failed",
+ full_fname(thisname));
+ }
+ return NULL;
+ }
+
+ /* backup.c calls us with filter_level set to NO_FILTERS. */
+ if (filter_level == NO_FILTERS)
+ goto skip_filters;
+
+ if (S_ISDIR(st.st_mode) && !xfer_dirs) {
+ rprintf(FINFO, "skipping directory %s\n", thisname);
+ return NULL;
+ }
+
+ /* -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)) {
+ 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 (ignore_perishable)
+ non_perishable_cnt++;
+ return NULL;
+ }
+
+ if (lp_ignore_nonreadable(module_id)) {
+#ifdef SUPPORT_LINKS
+ if (!S_ISLNK(st.st_mode))
+#endif
+ if (access(thisname, R_OK) != 0)
+ return NULL;
+ }
+
+ 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) {
+ 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;
+ basename_len = strlen(basename) + 1; /* count the '\0' */
+
+#ifdef SUPPORT_LINKS
+ linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
+#else
+ linkname_len = 0;
+#endif
+ if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
+ extra_len += EXTRA_LEN;
- for (flags=read_byte(f); flags; flags=read_byte(f)) {
- int i = flist->count;
+#if EXTRA_ROUNDING > 0
+ if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
+ extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
+#endif
- if (i >= flist->malloced) {
- flist->malloced += 100;
- flist->files =(struct file_struct *)realloc(flist->files,
- sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- goto oom;
- }
+ alloc_len = FILE_STRUCT_LEN + extra_len + basename_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("make_file");
+ }
+
+ memset(bp, 0, extra_len + FILE_STRUCT_LEN);
+ bp += extra_len;
+ file = (struct file_struct *)bp;
+ bp += FILE_STRUCT_LEN;
+
+ memcpy(bp, basename, basename_len);
+ bp += basename_len + linkname_len; /* skip space for symlink too */
+
+#ifdef SUPPORT_HARD_LINKS
+ 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
- receive_file_entry(&flist->files[i],flags,f);
+#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
- if (S_ISREG(flist->files[i].mode))
- total_size += flist->files[i].length;
+ 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) {
+ bp = (char*)file->basename + basename_len;
+ memcpy(bp, linkname, linkname_len);
+ }
+#endif
- flist->count++;
+ if (always_checksum && am_sender && S_ISREG(st.st_mode))
+ file_checksum(thisname, tmp_sum, st.st_size);
+
+ 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 with our name. */
+ if (flist_find(dir_flist, file) >= 0
+ && do_stat(thisname, &st2) == 0 && S_ISDIR(st2.st_mode)) {
+ file->modtime = st2.st_mtime;
+ file->len32 = 0;
+ file->mode = st2.st_mode;
+ if (preserve_uid)
+ F_OWNER(file) = st2.st_uid;
+ if (preserve_gid)
+ F_GROUP(file) = st2.st_gid;
+ } else
+ file->mode = save_mode;
+ }
+
+ if (basename_len == 0+1)
+ return NULL;
+
+ if (inc_recurse && flist == dir_flist) {
+ flist_expand(flist);
+ flist->files[flist->count++] = file;
+ }
+
+ return file;
+}
- if (verbose > 2)
- fprintf(stderr,"recv_file_name(%s)\n",flist->files[i].name);
- }
+/* 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,
+ int flags, int filter_flags)
+{
+ struct file_struct *file;
+#if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
+ statx sx;
+#endif
- if (verbose > 2)
- fprintf(stderr,"received %d names\n",flist->count);
+ file = make_file(fname, flist, stp, flags, filter_flags);
+ if (!file)
+ return NULL;
- clean_flist(flist);
+ if (chmod_modes && !S_ISLNK(file->mode))
+ file->mode = tweak_mode(file->mode, chmod_modes);
- return flist;
+#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
-oom:
- out_of_memory("recv_file_list");
- return NULL; /* not reached */
+ maybe_emit_filelist_progress(flist->count + flist_count_offset);
+
+ flist_expand(flist);
+ 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,
+ int flags)
+{
+ char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
+
+ if (S_ISDIR(file->mode)
+ && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
+ void *save_filters;
+ unsigned int len = strlen(fbuf);
+ if (len > 1 && fbuf[len-1] == '/')
+ fbuf[--len] = '\0';
+ if (len >= MAXPATHLEN - 1) {
+ io_error |= IOERR_GENERAL;
+ rprintf(FERROR, "skipping long-named directory: %s\n",
+ full_fname(fbuf));
+ return;
+ }
+ save_filters = push_local_filters(fbuf, len);
+ send_directory(f, flist, -1, fbuf, len, flags);
+ pop_local_filters(save_filters);
+ fbuf[ol] = '\0';
+ if (is_dot_dir)
+ fbuf[ol-1] = '.';
+ }
+}
-static int flist_compare(struct file_struct *f1,struct file_struct *f2)
+static int file_compare(struct file_struct **file1, struct file_struct **file2)
{
- if (!f1->name && !f2->name) return 0;
- if (!f1->name) return -1;
- if (!f2->name) return 1;
- return strcmp(f1->name,f2->name);
+ 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;
+}
-int flist_find(struct file_list *flist,struct file_struct *f)
+/* 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, int parent_ndx,
+ char *fbuf, int len, int flags)
{
- int low=0,high=flist->count;
+ struct dirent *di;
+ unsigned remainder;
+ char *p;
+ DIR *d;
+ 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;
+ rsyserr(FERROR, errno, "opendir %s failed", full_fname(fbuf));
+ return;
+ }
+
+ p = fbuf + len;
+ if (len != 1 || *fbuf != '/')
+ *p++ = '/';
+ *p = '\0';
+ remainder = MAXPATHLEN - (p - fbuf);
+
+ for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
+ char *dname = d_name(di);
+ if (dname[0] == '.' && (dname[1] == '\0'
+ || (dname[1] == '.' && dname[2] == '\0')))
+ continue;
+ 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, flags, filter_flags);
+ }
+
+ fbuf[len] = '\0';
+
+ if (errno) {
+ io_error |= IOERR_GENERAL;
+ rsyserr(FERROR, errno, "readdir(%s)", full_fname(fbuf));
+ }
+
+ closedir(d);
+
+ 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, flags);
+ }
+}
- while (low != high) {
- int mid = (low+high)/2;
- int ret = flist_compare(&flist->files[mid],f);
- if (ret == 0) return mid;
- if (ret > 0)
- high=mid;
- else
- low=mid+1;
- }
- if (flist_compare(&flist->files[low],f) == 0)
- return low;
- return -1;
+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;
+ 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);
+
+#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;
+ }
+
+ disable_buffering = io_start_buffering_out(f);
+ if (filesfrom_fd >= 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;
+ }
+
+ while (1) {
+ char fbuf[MAXPATHLEN];
+ char *fn;
+ int is_dot_dir;
+
+ if (use_ff_fd) {
+ if (read_filesfrom_line(filesfrom_fd, fbuf) == 0)
+ break;
+ sanitize_path(fbuf, fbuf, "", 0, NULL);
+ } else {
+ if (argc-- == 0)
+ break;
+ strlcpy(fbuf, *argv++, MAXPATHLEN);
+ if (sanitize_paths)
+ sanitize_path(fbuf, fbuf, "", 0, NULL);
+ }
+
+ 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 "./." */
+ fbuf[1] = '\0';
+ } else {
+ if (len + 1 >= MAXPATHLEN)
+ overflow_exit("send_file_list");
+ fbuf[len++] = '.';
+ fbuf[len] = '\0';
+ }
+ is_dot_dir = 1;
+ } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
+ && (len == 2 || fbuf[len-3] == '/')) {
+ if (len + 2 >= MAXPATHLEN)
+ overflow_exit("send_file_list");
+ fbuf[len++] = '/';
+ fbuf[len++] = '.';
+ fbuf[len] = '\0';
+ is_dot_dir = 1;
+ } else {
+ is_dot_dir = fbuf[len-1] == '.'
+ && (len == 1 || fbuf[len-2] == '/');
+ }
+
+ dir = NULL;
+
+ if (!relative_paths) {
+ p = strrchr(fbuf, '/');
+ if (p) {
+ *p = '\0';
+ if (p == fbuf)
+ dir = "/";
+ else
+ 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;
+ }
+ 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);
+ }
+ }
+ }
+
+ if (!*fn) {
+ len = 1;
+ fn = ".";
+ }
+
+ if (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 in %s",
+ full_fname(dir), curr_dir);
+ continue;
+ }
+ }
+
+ 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. */
+ 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;
+ 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,
+ dir_flags, ALL_FILTERS);
+ *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 (recurse || (xfer_dirs && is_dot_dir)) {
+ struct file_struct *file;
+ 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, flags, ALL_FILTERS);
+ }
+
+ gettimeofday(&end_tv, NULL);
+ stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
+ + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
+ if (stats.flist_buildtime == 0)
+ stats.flist_buildtime = 1;
+ start_tv = end_tv;
+
+ 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
-static void clean_fname(char *name)
+ if (show_filelist_p())
+ finish_filelist_progress(flist);
+
+ gettimeofday(&end_tv, NULL);
+ stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
+ + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
+
+ /* 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;
+
+ if (!numeric_ids && !inc_recurse)
+ send_uid_list(f);
+
+ /* send the io_error flag */
+ 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();
+
+ stats.flist_size = stats.total_written - start_write;
+ stats.num_files = flist->count;
+
+ if (verbose > 3)
+ output_flist(flist);
+
+ 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)
{
- char *p;
- int l;
- int modified = 1;
+ struct file_list *flist;
+ 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(0, "recv_file_list");
+
+#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;
+
+ flist_expand(flist);
+
+ if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
+ flags |= read_byte(f) << 8;
+ file = recv_file_entry(flist, flags, f);
+
+ if (inc_recurse && S_ISDIR(file->mode)) {
+ flist_expand(dir_flist);
+ dir_flist->files[dir_flist->count++] = file;
+ }
+
+ flist->files[flist->count++] = file;
+
+ maybe_emit_filelist_progress(flist->count);
+
+ if (verbose > 2) {
+ rprintf(FINFO, "recv_file_name(%s)\n",
+ f_name(file, NULL));
+ }
+ }
+ file_total += flist->count;
- if (!name) return;
+ if (verbose > 2)
+ rprintf(FINFO, "received %d names\n", flist->count);
- while (modified) {
- modified = 0;
+ if (show_filelist_p())
+ finish_filelist_progress(flist);
- if ((p=strstr(name,"/./"))) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
+ clean_flist(flist, relative_paths, 1);
- if ((p=strstr(name,"//"))) {
- modified = 1;
- while (*p) {
- p[0] = p[1];
- p++;
- }
- }
+ 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 (strncmp(p=name,"./",2) == 0) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
+ if (protocol_version < 30) {
+ /* Recv the io_error flag */
+ if (ignore_errors)
+ read_int(f);
+ else
+ io_error |= read_int(f);
+ }
- l = strlen(p=name);
- if (l > 1 && p[l-1] == '/') {
- modified = 1;
- p[l-1] = 0;
- }
- }
+ if (verbose > 3)
+ output_flist(flist);
+
+ if (list_only) {
+ int i;
+ for (i = 0; i < flist->count; i++)
+ list_file_entry(flist->files[i]);
+ }
+
+ if (verbose > 2)
+ rprintf(FINFO, "recv_file_list done\n");
+
+ stats.flist_size += stats.total_read - start_read;
+ stats.num_files += flist->count;
+
+ return flist;
}
+/* 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)
+{
+ 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
+ * 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 diff, mid, mid_up;
+
+ while (low <= high) {
+ mid = (low + high) / 2;
+ 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 (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(struct file_struct *file)
+{
+ /* 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 flags, char *msg)
+{
+ struct file_list *flist;
+
+ flist = new(struct file_list);
+ if (!flist)
+ out_of_memory(msg);
+
+ memset(flist, 0, sizeof flist[0]);
+
+ 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++;
+ }
+
+ 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. */
+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);
+ 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
+ * duplicate names can cause corruption because of the pipelining
*/
-void clean_flist(struct file_list *flist)
-{
- int i;
-
- if (!flist || flist->count == 0)
- return;
-
- for (i=0;i<flist->count;i++) {
- clean_fname(flist->files[i].name);
- }
-
- qsort(flist->files,flist->count,
- sizeof(flist->files[0]),
- (int (*)())flist_compare);
-
- for (i=1;i<flist->count;i++) {
- if (flist->files[i].name &&
- strcmp(flist->files[i].name,flist->files[i-1].name) == 0) {
- if (verbose > 1 && !am_server)
- fprintf(stderr,"removing duplicate name %s from file list\n",
- flist->files[i].name);
- free(flist->files[i-1].name);
- flist->files[i-1].name = NULL;
- }
- }
+static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
+{
+ char fbuf[MAXPATHLEN];
+ int i, prev_i = 0;
+
+ if (!flist)
+ return;
+ if (flist->count == 0) {
+ flist->high = -1;
+ return;
+ }
+
+ qsort(flist->files, flist->count,
+ sizeof flist->files[0], (int (*)())file_compare);
+
+ for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
+ if (F_IS_ACTIVE(flist->files[i])) {
+ prev_i = i;
+ break;
+ }
+ }
+ flist->low = prev_i;
+ while (++i < flist->count) {
+ int j;
+ struct file_struct *file = flist->files[i];
+
+ if (!F_IS_ACTIVE(file))
+ continue;
+ if (f_name_cmp(file, flist->files[prev_i]) == 0)
+ j = prev_i;
+ else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
+ int save_mode = file->mode;
+ /* Make sure that this directory doesn't duplicate a
+ * non-directory earlier in the list. */
+ flist->high = prev_i;
+ file->mode = S_IFREG;
+ j = flist_find(flist, file);
+ file->mode = save_mode;
+ } else
+ j = -1;
+ if (j >= 0) {
+ struct file_struct *fp = flist->files[j];
+ int keep, drop;
+ /* If one is a dir and the other is not, we want to
+ * keep the dir because it might have contents in the
+ * list. */
+ if (S_ISDIR(file->mode) != S_ISDIR(fp->mode)) {
+ if (S_ISDIR(file->mode))
+ keep = i, drop = j;
+ else
+ keep = j, drop = i;
+ } 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, fbuf), drop);
+ }
+ /* 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_XFER_DIR);
+
+ clear_file(flist->files[drop]);
+
+ if (keep == i) {
+ if (flist->low == drop) {
+ for (j = drop + 1;
+ j < i && !F_IS_ACTIVE(flist->files[j]);
+ j++) {}
+ flist->low = j;
+ }
+ prev_i = i;
+ }
+ } else
+ prev_i = i;
+ }
+ flist->high = no_dups ? prev_i : flist->count - 1;
+
+ if (strip_root) {
+ /* We need to strip off the leading slashes for relative
+ * paths, but this must be done _after_ the sorting phase. */
+ for (i = flist->low; i <= flist->high; i++) {
+ struct file_struct *file = flist->files[i];
+
+ if (!file->dirname)
+ continue;
+ 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) {
+ snprintf(uidbuf, sizeof uidbuf, " uid=%ld",
+ (long)F_UID(file));
+ } else
+ *uidbuf = '\0';
+ if (preserve_gid && F_GID(file) != GID_NONE) {
+ snprintf(gidbuf, sizeof gidbuf, " gid=%ld",
+ (long)F_GID(file));
+ } else
+ *gidbuf = '\0';
+ if (!am_sender)
+ 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, 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 };
+
+/* Compare the names of two file_struct entities, similar to how strcmp()
+ * would do if it were operating on the joined strings.
+ *
+ * Some differences beginning with protocol_version 29: (1) directory names
+ * are compared with an assumed trailing slash so that they compare in a
+ * way that would cause them to sort immediately prior to any content they
+ * may have; (2) a directory of any name compares after a non-directory of
+ * any name at the same depth; (3) a directory with name "." compares prior
+ * to anything else. These changes mean that a directory and a non-dir
+ * with the same name will not compare as equal (protocol_version >= 29).
+ *
+ * The dirname component can be an empty string, but the basename component
+ * cannot (and never is in the current codebase). The basename component
+ * may be NULL (for a removed item), in which case it is considered to be
+ * after any existing item. */
+int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
+{
+ int dif;
+ const uchar *c1, *c2;
+ enum fnc_state state1, state2;
+ enum fnc_type type1, type2;
+ enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
+
+ if (!f1 || !F_IS_ACTIVE(f1)) {
+ if (!f2 || !F_IS_ACTIVE(f2))
+ return 0;
+ return -1;
+ }
+ if (!f2 || !F_IS_ACTIVE(f2))
+ return 1;
+
+ c1 = (uchar*)f1->dirname;
+ c2 = (uchar*)f2->dirname;
+ if (c1 == c2)
+ c1 = c2 = NULL;
+ if (!c1) {
+ type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
+ 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 {
+ type1 = t_path;
+ state1 = s_DIR;
+ }
+ if (!c2) {
+ type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
+ 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 {
+ type2 = t_path;
+ state2 = s_DIR;
+ }
+
+ if (type1 != type2)
+ return type1 == t_PATH ? 1 : -1;
+
+ do {
+ if (!*c1) {
+ switch (state1) {
+ case s_DIR:
+ state1 = s_SLASH;
+ c1 = (uchar*)"/";
+ break;
+ case s_SLASH:
+ type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
+ c1 = (const uchar*)f1->basename;
+ if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
+ type1 = t_ITEM;
+ state1 = s_TRAILING;
+ c1 = (uchar*)"";
+ } else
+ state1 = s_BASE;
+ break;
+ case s_BASE:
+ state1 = s_TRAILING;
+ if (type1 == t_PATH) {
+ c1 = (uchar*)"/";
+ break;
+ }
+ /* FALL THROUGH */
+ case s_TRAILING:
+ type1 = t_ITEM;
+ break;
+ }
+ if (*c2 && type1 != type2)
+ return type1 == t_PATH ? 1 : -1;
+ }
+ if (!*c2) {
+ switch (state2) {
+ case s_DIR:
+ state2 = s_SLASH;
+ c2 = (uchar*)"/";
+ break;
+ case s_SLASH:
+ type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
+ c2 = (const uchar*)f2->basename;
+ if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
+ type2 = t_ITEM;
+ state2 = s_TRAILING;
+ c2 = (uchar*)"";
+ } else
+ state2 = s_BASE;
+ break;
+ case s_BASE:
+ state2 = s_TRAILING;
+ if (type2 == t_PATH) {
+ c2 = (uchar*)"/";
+ break;
+ }
+ /* FALL THROUGH */
+ case s_TRAILING:
+ if (!*c1)
+ return 0;
+ type2 = t_ITEM;
+ break;
+ }
+ 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_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] = '/';
+ strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
+ } else
+ strlcpy(fbuf, f->basename, MAXPATHLEN);
+
+ 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 *dirlist;
+ char dirbuf[MAXPATHLEN];
+ int save_recurse = recurse;
+ int save_xfer_dirs = xfer_dirs;
+
+ if (dlen < 0) {
+ dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
+ if (dlen >= MAXPATHLEN)
+ return NULL;
+ dirname = dirbuf;
+ }
+
+ dirlist = flist_new(FLIST_TEMP, "get_dirlist");
+
+ recurse = 0;
+ 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;
+
+ clean_flist(dirlist, 0, 0);
+
+ if (verbose > 3)
+ output_flist(dirlist);
+
+ return dirlist;
+}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff