-/*
+/*
Copyright (C) Andrew Tridgell 1996
Copyright (C) Paul Mackerras 1996
-
+ Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
+
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 */
+/** @file flist.c
+ * Generate and receive file lists
+ *
+ * @todo Get rid of the string_area optimization. Efficiently
+ * allocating blocks is the responsibility of the system's malloc
+ * library, not of rsync.
+ *
+ * @sa http://lists.samba.org/pipermail/rsync/2000-June/002351.html
+ *
+ **/
#include "rsync.h"
+extern struct stats stats;
+
extern int verbose;
+extern int do_progress;
extern int am_server;
extern int always_checksum;
-extern off_t total_size;
extern int cvs_exclude;
+extern int recurse;
+extern char *files_from;
+extern int filesfrom_fd;
+
extern int one_file_system;
extern int make_backups;
extern int preserve_links;
+extern int preserve_hard_links;
extern int preserve_perms;
extern int preserve_devices;
extern int preserve_uid;
extern int preserve_gid;
extern int preserve_times;
+extern int relative_paths;
+extern int implied_dirs;
+extern int copy_links;
+extern int copy_unsafe_links;
+extern int protocol_version;
+extern int io_error;
+extern int sanitize_paths;
+
+extern int read_batch;
+extern int write_batch;
+
+extern struct exclude_struct **exclude_list;
+extern struct exclude_struct **server_exclude_list;
+extern struct exclude_struct **local_exclude_list;
+
+static struct file_struct null_file;
+
+static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
+
+
+static int show_filelist_p(void)
+{
+ return verbose && (recurse || files_from) && !am_server;
+}
+
+static void start_filelist_progress(char *kind)
+{
+ rprintf(FINFO, "%s ... ", kind);
+ if ((verbose > 1) || do_progress)
+ rprintf(FINFO, "\n");
+ rflush(FINFO);
+}
+
+
+static void emit_filelist_progress(const struct file_list *flist)
+{
+ rprintf(FINFO, " %d files...\r", flist->count);
+}
+
+
+static void maybe_emit_filelist_progress(const struct file_list *flist)
+{
+ if (do_progress && show_filelist_p() && ((flist->count % 100) == 0))
+ emit_filelist_progress(flist);
+}
+
+
+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");
+ }
+}
+
+void show_flist_stats(void)
+{
+ /* Nothing yet */
+}
+
+
+static struct string_area *string_area_new(int size)
+{
+ struct string_area *a;
+
+ if (size <= 0)
+ size = ARENA_SIZE;
+ a = malloc(sizeof(*a));
+ if (!a)
+ out_of_memory("string_area_new");
+ a->current = a->base = malloc(size);
+ if (!a->current)
+ out_of_memory("string_area_new buffer");
+ a->end = a->base + size;
+ a->next = NULL;
+
+ return a;
+}
+
+static void string_area_free(struct string_area *a)
+{
+ struct string_area *next;
+
+ for (; a; a = next) {
+ next = a->next;
+ free(a->base);
+ }
+}
+
+static char *string_area_malloc(struct string_area **ap, int size)
+{
+ char *p;
+ struct string_area *a;
+
+ /* does the request fit into the current space? */
+ a = *ap;
+ if (a->current + size >= a->end) {
+ /* no; get space, move new string_area to front of the list */
+ a = string_area_new(size > ARENA_SIZE ? size : ARENA_SIZE);
+ a->next = *ap;
+ *ap = a;
+ }
+
+ /* have space; do the "allocation." */
+ p = a->current;
+ a->current += size;
+ return p;
+}
+
+static char *string_area_strdup(struct string_area **ap, const char *src)
+{
+ char *dest = string_area_malloc(ap, strlen(src) + 1);
+ return strcpy(dest, src);
+}
-static char **local_exclude_list = NULL;
+static void list_file_entry(struct file_struct *f)
+{
+ char perms[11];
+
+ if (!f->basename)
+ /* this can happen if duplicate names were removed */
+ return;
+
+ permstring(perms, f->mode);
+
+ if (preserve_links && S_ISLNK(f->mode)) {
+ rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
+ perms,
+ (double) f->length, timestring(f->modtime),
+ f_name(f), f->link);
+ } else {
+ rprintf(FINFO, "%s %11.0f %s %s\n",
+ perms,
+ (double) f->length, timestring(f->modtime),
+ f_name(f));
+ }
+}
-static void clean_fname(char *name);
+/**
+ * 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
+ *
+ * @post If @p path is a symlink, then @p linkbuf (of size @c
+ * MAXPATHLEN) contains the symlink target.
+ *
+ * @post @p buffer contains information about the link or the
+ * referrent as appropriate, if they exist.
+ **/
+int readlink_stat(const char *path, STRUCT_STAT * buffer, char *linkbuf)
+{
+#if SUPPORT_LINKS
+ if (copy_links) {
+ return do_stat(path, buffer);
+ }
+ if (do_lstat(path, buffer) == -1) {
+ return -1;
+ }
+ if (S_ISLNK(buffer->st_mode)) {
+ int l;
+ l = readlink((char *) path, linkbuf, MAXPATHLEN - 1);
+ if (l == -1)
+ return -1;
+ linkbuf[l] = 0;
+ if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
+ if (verbose > 1) {
+ rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
+ path, linkbuf);
+ }
+ return do_stat(path, buffer);
+ }
+ }
+ return 0;
+#else
+ return do_stat(path, buffer);
+#endif
+}
+
+int link_stat(const char *path, STRUCT_STAT * buffer)
+{
+#if SUPPORT_LINKS
+ if (copy_links) {
+ return do_stat(path, buffer);
+ } else {
+ return do_lstat(path, buffer);
+ }
+#else
+ return do_stat(path, buffer);
+#endif
+}
/*
- 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
+ * 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
+ * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
*/
-static int match_file_name(char *fname,struct stat *st)
+static int check_exclude_file(char *fname, int is_dir, int exclude_level)
{
- if (check_exclude(fname,local_exclude_list)) {
- if (verbose > 2)
- fprintf(stderr,"excluding file %s\n",fname);
- return 0;
- }
- return 1;
+#if 0 /* This currently never happens, so avoid a useless compare. */
+ if (exclude_level == NO_EXCLUDES)
+ 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_exclude_list
+ && check_exclude(server_exclude_list, fname, is_dir))
+ return 1;
+ if (exclude_level != ALL_EXCLUDES)
+ return 0;
+ if (exclude_list && check_exclude(exclude_list, fname, is_dir))
+ return 1;
+ if (local_exclude_list
+ && check_exclude(local_exclude_list, fname, is_dir))
+ return 1;
+ return 0;
}
/* used by the one_file_system code */
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);
+ STRUCT_STAT st;
+ if (link_stat(fname, &st) != 0)
+ return;
+ filesystem_dev = st.st_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);
+static int to_wire_mode(mode_t mode)
+{
+ if (S_ISLNK(mode) && (_S_IFLNK != 0120000)) {
+ return (mode & ~(_S_IFMT)) | 0120000;
+ }
+ return (int) mode;
+}
+
+static mode_t from_wire_mode(int mode)
+{
+ if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000)) {
+ return (mode & ~(_S_IFMT)) | _S_IFLNK;
+ }
+ return (mode_t) mode;
+}
+
+
+static void send_directory(int f, struct file_list *flist, char *dir);
+
+static char *flist_dir;
+
+
+/**
+ * Make sure @p flist is big enough to hold at least @p flist->count
+ * entries.
+ **/
+static void flist_expand(struct file_list *flist)
+{
+ if (flist->count >= flist->malloced) {
+ size_t new_bytes;
+ void *new_ptr;
+
+ if (flist->malloced < 1000)
+ flist->malloced += 1000;
+ else
+ flist->malloced *= 2;
+
+ new_bytes = sizeof(flist->files[0]) * flist->malloced;
+
+ if (flist->files)
+ new_ptr = realloc(flist->files, new_bytes);
+ else
+ new_ptr = malloc(new_bytes);
+
+ if (verbose >= 2) {
+ rprintf(FINFO, "expand file_list to %.0f bytes, did%s move\n",
+ (double) new_bytes,
+ (new_ptr == flist->files) ? " not" : "");
+ }
+
+ flist->files = (struct file_struct **) new_ptr;
+
+ if (!flist->files)
+ out_of_memory("flist_expand");
+ }
+}
+
+
+static void send_file_entry(struct file_struct *file, int f,
+ unsigned base_flags)
+{
+ unsigned char flags;
+ static time_t last_time;
+ static mode_t last_mode;
+ static DEV64_T last_rdev;
+ static uid_t last_uid;
+ static gid_t last_gid;
+ static char lastname[MAXPATHLEN];
+ char *fname;
+ int l1, l2;
+
+ if (f == -1)
+ return;
+
+ if (!file) {
+ write_byte(f, 0);
+ return;
+ }
+
+ io_write_phase = "send_file_entry";
+
+ fname = f_name(file);
+
+ flags = base_flags;
+
+ if (file->mode == last_mode)
+ flags |= SAME_MODE;
+ if (file->rdev == last_rdev)
+ flags |= SAME_RDEV;
+ if (file->uid == last_uid)
+ flags |= SAME_UID;
+ if (file->gid == last_gid)
+ flags |= SAME_GID;
+ if (file->modtime == last_time)
+ flags |= SAME_TIME;
+
+ for (l1 = 0;
+ lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
+ l1++) {}
+ l2 = strlen(fname) - l1;
+
+ if (l1 > 0)
+ flags |= SAME_NAME;
+ if (l2 > 255)
+ flags |= LONG_NAME;
+
+ /* we must make sure we don't send a zero flags byte or the other
+ end will terminate the flist transfer */
+ if (flags == 0 && !S_ISDIR(file->mode))
+ flags |= FLAG_DELETE;
+ if (flags == 0)
+ flags |= LONG_NAME;
+
+ write_byte(f, flags);
+ if (flags & SAME_NAME)
+ write_byte(f, l1);
+ if (flags & LONG_NAME)
+ write_int(f, l2);
+ else
+ write_byte(f, l2);
+ write_buf(f, fname + l1, l2);
+
+ write_longint(f, file->length);
+ if (!(flags & SAME_TIME))
+ write_int(f, (int) file->modtime);
+ if (!(flags & SAME_MODE))
+ write_int(f, to_wire_mode(file->mode));
+ if (preserve_uid && !(flags & SAME_UID)) {
+ add_uid(file->uid);
+ write_int(f, (int) file->uid);
+ }
+ if (preserve_gid && !(flags & SAME_GID)) {
+ add_gid(file->gid);
+ write_int(f, (int) file->gid);
+ }
+ if (preserve_devices && IS_DEVICE(file->mode)
+ && !(flags & SAME_RDEV))
+ write_int(f, (int) file->rdev);
#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;
+ if (preserve_links && S_ISLNK(file->mode)) {
+ write_int(f, strlen(file->link));
+ write_buf(f, file->link, strlen(file->link));
+ }
#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);
- }
+#if SUPPORT_HARD_LINKS
+ if (preserve_hard_links && S_ISREG(file->mode)) {
+ if (protocol_version < 26) {
+ /* 32-bit dev_t and ino_t */
+ write_int(f, (int) file->dev);
+ write_int(f, (int) file->inode);
+ } else {
+ /* 64-bit dev_t and ino_t */
+ write_longint(f, file->dev);
+ write_longint(f, file->inode);
+ }
+ }
#endif
- if (always_checksum && S_ISREG(st.st_mode)) {
- file_checksum(fname,file.sum,st.st_size);
- }
+ if (always_checksum) {
+ if (protocol_version < 21) {
+ write_buf(f, file->sum, 2);
+ } else {
+ write_buf(f, file->sum, MD4_SUM_LENGTH);
+ }
+ }
- if (flist_dir)
- file.dir = strdup(flist_dir);
- else
- file.dir = NULL;
+ last_mode = file->mode;
+ last_rdev = file->rdev;
+ last_uid = file->uid;
+ last_gid = file->gid;
+ last_time = file->modtime;
- if (!S_ISDIR(st.st_mode))
- total_size += st.st_size;
+ strlcpy(lastname, fname, MAXPATHLEN);
+ lastname[MAXPATHLEN - 1] = 0;
- return &file;
+ io_write_phase = "unknown";
}
-static void send_file_name(int f,struct file_list *flist,
- int recurse,char *fname)
+static void receive_file_entry(struct file_struct **fptr,
+ unsigned flags, int f)
{
- struct file_struct *file;
+ static time_t last_time;
+ static mode_t last_mode;
+ static DEV64_T last_rdev;
+ static uid_t last_uid;
+ static gid_t last_gid;
+ static char lastname[MAXPATHLEN];
+ char thisname[MAXPATHLEN];
+ unsigned int l1 = 0, l2 = 0;
+ char *p;
+ struct file_struct *file;
+
+ if (flags & SAME_NAME)
+ l1 = read_byte(f);
+
+ if (flags & LONG_NAME)
+ l2 = read_int(f);
+ else
+ l2 = read_byte(f);
+
+ file = (struct file_struct *) malloc(sizeof(*file));
+ if (!file)
+ out_of_memory("receive_file_entry");
+ memset((char *) file, 0, sizeof(*file));
+ (*fptr) = file;
+
+ if (l2 >= MAXPATHLEN - l1) {
+ rprintf(FERROR,
+ "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
+ flags, l1, l2, lastname);
+ overflow("receive_file_entry");
+ }
+
+ strlcpy(thisname, lastname, l1 + 1);
+ read_sbuf(f, &thisname[l1], l2);
+ thisname[l1 + l2] = 0;
+
+ strlcpy(lastname, thisname, MAXPATHLEN);
+ lastname[MAXPATHLEN - 1] = 0;
+
+ clean_fname(thisname);
+
+ if (sanitize_paths) {
+ sanitize_path(thisname, NULL);
+ }
+
+ if ((p = strrchr(thisname, '/'))) {
+ static char *lastdir;
+ *p = 0;
+ if (lastdir && strcmp(thisname, lastdir) == 0) {
+ file->dirname = lastdir;
+ } else {
+ file->dirname = strdup(thisname);
+ lastdir = file->dirname;
+ }
+ file->basename = strdup(p + 1);
+ } else {
+ file->dirname = NULL;
+ file->basename = strdup(thisname);
+ }
+
+ if (!file->basename)
+ out_of_memory("receive_file_entry 1");
+
+
+ file->flags = flags;
+ file->length = read_longint(f);
+ file->modtime =
+ (flags & SAME_TIME) ? last_time : (time_t) read_int(f);
+ file->mode =
+ (flags & SAME_MODE) ? last_mode : from_wire_mode(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->rdev =
+ (flags & SAME_RDEV) ? last_rdev : (DEV64_T) read_int(f);
+
+ if (preserve_links && S_ISLNK(file->mode)) {
+ int l = read_int(f);
+ if (l < 0) {
+ rprintf(FERROR, "overflow: l=%d\n", l);
+ overflow("receive_file_entry");
+ }
+ file->link = (char *) malloc(l + 1);
+ if (!file->link)
+ out_of_memory("receive_file_entry 2");
+ read_sbuf(f, file->link, l);
+ if (sanitize_paths) {
+ sanitize_path(file->link, file->dirname);
+ }
+ }
+#if SUPPORT_HARD_LINKS
+ if (preserve_hard_links && S_ISREG(file->mode)) {
+ if (protocol_version < 26) {
+ file->dev = read_int(f);
+ file->inode = read_int(f);
+ } else {
+ file->dev = read_longint(f);
+ file->inode = read_longint(f);
+ }
+ }
+#endif
- file = make_file(recurse,fname);
+ if (always_checksum) {
+ file->sum = (char *) malloc(MD4_SUM_LENGTH);
+ if (!file->sum)
+ out_of_memory("md4 sum");
+ if (protocol_version < 21) {
+ read_buf(f, file->sum, 2);
+ } else {
+ read_buf(f, file->sum, MD4_SUM_LENGTH);
+ }
+ }
+
+ last_mode = file->mode;
+ last_rdev = file->rdev;
+ last_uid = file->uid;
+ last_gid = file->gid;
+ last_time = file->modtime;
+
+ if (!preserve_perms) {
+ extern int orig_umask;
+ /* set an appropriate set of permissions based on original
+ permissions and umask. This emulates what GNU cp does */
+ file->mode &= ~orig_umask;
+ }
+}
- 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");
- }
- if (strcmp(file->name,".") && strcmp(file->name,"/")) {
- flist->files[flist->count++] = *file;
- send_file_entry(file,f);
- }
+/* determine if a file in a different filesstem should be skipped
+ when one_file_system is set. We bascally only want to include
+ the mount points - but they can be hard to find! */
+static int skip_filesystem(char *fname, STRUCT_STAT * st)
+{
+ STRUCT_STAT st2;
+ char *p = strrchr(fname, '/');
- 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;
- }
-}
+ /* skip all but directories */
+ if (!S_ISDIR(st->st_mode))
+ return 1;
+ /* if its not a subdirectory then allow */
+ if (!p)
+ return 0;
+ *p = 0;
+ if (link_stat(fname, &st2)) {
+ *p = '/';
+ return 0;
+ }
+ *p = '/';
-static void send_directory(int f,struct file_list *flist,char *dir)
+ return (st2.st_dev != filesystem_dev);
+}
+
+#define STRDUP(ap, p) (ap ? string_area_strdup(ap, p) : strdup(p))
+/* IRIX cc cares that the operands to the ternary have the same type. */
+#define MALLOC(ap, i) (ap ? (void*) string_area_malloc(ap, i) : malloc(i))
+
+/**
+ * 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(char *fname, struct string_area **ap,
+ int exclude_level)
{
- 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);
- }
+ struct file_struct *file;
+ STRUCT_STAT st;
+ char sum[SUM_LENGTH];
+ char *p;
+ char cleaned_name[MAXPATHLEN];
+ char linkbuf[MAXPATHLEN];
+ extern int module_id;
+
+ strlcpy(cleaned_name, fname, MAXPATHLEN);
+ cleaned_name[MAXPATHLEN - 1] = 0;
+ clean_fname(cleaned_name);
+ if (sanitize_paths) {
+ sanitize_path(cleaned_name, NULL);
+ }
+ fname = cleaned_name;
+
+ memset(sum, 0, SUM_LENGTH);
+
+ if (readlink_stat(fname, &st, linkbuf) != 0) {
+ int save_errno = errno;
+ if (errno == ENOENT && exclude_level != NO_EXCLUDES) {
+ /* either symlink pointing nowhere or file that
+ * was removed during rsync run; see if excluded
+ * before reporting an error */
+ if (check_exclude_file(fname, 0, exclude_level)) {
+ /* file is excluded anyway, ignore silently */
+ return NULL;
+ }
+ }
+ io_error = 1;
+ rprintf(FERROR, "readlink %s failed: %s\n",
+ full_fname(fname), strerror(save_errno));
+ return NULL;
+ }
+
+ /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
+ if (exclude_level == NO_EXCLUDES)
+ goto skip_excludes;
+
+ if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
+ rprintf(FINFO, "skipping directory %s\n", fname);
+ return NULL;
+ }
+
+ if (one_file_system && st.st_dev != filesystem_dev) {
+ if (skip_filesystem(fname, &st))
+ return NULL;
+ }
+
+ if (check_exclude_file(fname, S_ISDIR(st.st_mode) != 0, exclude_level))
+ return NULL;
+
+ if (lp_ignore_nonreadable(module_id) && access(fname, R_OK) != 0)
+ return NULL;
+
+ skip_excludes:
+
+ if (verbose > 2)
+ rprintf(FINFO, "make_file(%s,*,%d)\n", fname, exclude_level);
+
+ file = (struct file_struct *) malloc(sizeof(*file));
+ if (!file)
+ out_of_memory("make_file");
+ memset((char *) file, 0, sizeof(*file));
+
+ if ((p = strrchr(fname, '/'))) {
+ static char *lastdir;
+ *p = 0;
+ if (lastdir && strcmp(fname, lastdir) == 0) {
+ file->dirname = lastdir;
+ } else {
+ file->dirname = strdup(fname);
+ lastdir = file->dirname;
+ }
+ file->basename = STRDUP(ap, p + 1);
+ *p = '/';
+ } else {
+ file->dirname = NULL;
+ file->basename = STRDUP(ap, 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;
+ file->dev = st.st_dev;
+ file->inode = st.st_ino;
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+ file->rdev = st.st_rdev;
+#endif
- closedir(d);
+#if SUPPORT_LINKS
+ if (S_ISLNK(st.st_mode)) {
+ file->link = STRDUP(ap, linkbuf);
+ }
+#endif
+
+ if (always_checksum) {
+ file->sum = (char *) MALLOC(ap, MD4_SUM_LENGTH);
+ if (!file->sum)
+ out_of_memory("md4 sum");
+ /* drat. we have to provide a null checksum for non-regular
+ files in order to be compatible with earlier versions
+ of rsync */
+ if (S_ISREG(st.st_mode)) {
+ file_checksum(fname, file->sum, st.st_size);
+ } else {
+ memset(file->sum, 0, MD4_SUM_LENGTH);
+ }
+ }
+
+ if (flist_dir) {
+ static char *lastdir;
+ if (lastdir && strcmp(lastdir, flist_dir) == 0) {
+ file->basedir = lastdir;
+ } else {
+ file->basedir = strdup(flist_dir);
+ lastdir = file->basedir;
+ }
+ } else {
+ file->basedir = NULL;
+ }
+
+ if (!S_ISDIR(st.st_mode))
+ stats.total_size += st.st_size;
+
+ return file;
}
-struct file_list *send_file_list(int f,int recurse,int argc,char *argv[])
+void send_file_name(int f, struct file_list *flist, char *fname,
+ int recursive, unsigned base_flags)
{
- int i,l;
- struct stat st;
- char *p,*dir;
- char dbuf[MAXPATHLEN];
- struct file_list *flist;
+ struct file_struct *file;
+ extern int delete_excluded;
+
+ /* f is set to -1 when calculating deletion file list */
+ file = make_file(fname, &flist->string_area,
+ f == -1 && delete_excluded? SERVER_EXCLUDES
+ : ALL_EXCLUDES);
+
+ if (!file)
+ return;
+
+ maybe_emit_filelist_progress(flist);
- if (verbose && recurse) {
- fprintf(am_server?stderr:stdout,"building file list ... ");
- fflush(am_server?stderr:stdout);
- }
+ flist_expand(flist);
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist) out_of_memory("send_file_list");
+ if (write_batch) /* dw */
+ file->flags = FLAG_DELETE;
- 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");
+ if (file->basename[0]) {
+ flist->files[flist->count++] = file;
+ send_file_entry(file, f, base_flags);
+ }
- 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;
+ if (S_ISDIR(file->mode) && recursive) {
+ struct exclude_struct **last_exclude_list =
+ local_exclude_list;
+ send_directory(f, flist, f_name(file));
+ local_exclude_list = last_exclude_list;
+ return;
+ }
+}
+
+
+
+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) {
+ io_error = 1;
+ rprintf(FERROR, "opendir %s failed: %s\n",
+ full_fname(dir), strerror(errno));
+ return;
+ }
+
+ strlcpy(fname, dir, MAXPATHLEN);
+ l = strlen(fname);
+ if (fname[l - 1] != '/') {
+ if (l == MAXPATHLEN - 1) {
+ io_error = 1;
+ rprintf(FERROR, "skipping long-named directory: %s\n",
+ full_fname(fname));
+ closedir(d);
+ return;
+ }
+ strlcat(fname, "/", MAXPATHLEN);
+ l++;
+ }
+ p = fname + strlen(fname);
+
+ local_exclude_list = NULL;
+
+ if (cvs_exclude) {
+ if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN - 1) {
+ strcpy(p, ".cvsignore");
+ add_exclude_file(&exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
+ } else {
+ io_error = 1;
+ rprintf(FINFO,
+ "cannot cvs-exclude in long-named directory %s\n",
+ full_fname(fname));
+ }
+ }
+
+ 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;
+ strlcpy(p, dname, MAXPATHLEN - l);
+ send_file_name(f, flist, fname, recurse, 0);
+ }
+ if (errno) {
+ io_error = 1;
+ rprintf(FERROR, "readdir(%s): (%d) %s\n",
+ dir, errno, strerror(errno));
+ }
+
+ if (local_exclude_list)
+ free_exclude_list(&local_exclude_list); /* Zeros pointer too */
+
+ closedir(d);
+}
+
+
+/**
+ * The delete_files() function in receiver.c sets f to -1 so that we just
+ * construct the file list in memory without sending it over the wire. It
+ * also has the side-effect of ignoring user-excludes if delete_excluded
+ * is set (so that the delete list includes user-excluded files).
+ **/
+struct file_list *send_file_list(int f, int argc, char *argv[])
+{
+ int l;
+ STRUCT_STAT st;
+ char *p, *dir, *olddir;
+ char lastpath[MAXPATHLEN] = "";
+ struct file_list *flist;
+ int64 start_write;
+ int use_ff_fd = 0;
+
+ if (show_filelist_p() && f != -1)
+ start_filelist_progress("building file list");
+
+ start_write = stats.total_written;
+
+ flist = flist_new();
+
+ if (f != -1) {
+ io_start_buffering(f);
+ if (filesfrom_fd >= 0) {
+ if (argv[0] && !push_dir(argv[0], 0)) {
+ rprintf(FERROR, "push_dir %s failed: %s\n",
+ full_fname(argv[0]), strerror(errno));
+ exit_cleanup(RERR_FILESELECT);
+ }
+ use_ff_fd = 1;
+ }
+ }
+
+ while (1) {
+ char fname2[MAXPATHLEN];
+ char *fname = fname2;
+
+ if (use_ff_fd) {
+ if (read_filesfrom_line(filesfrom_fd, fname) == 0)
+ break;
+ sanitize_path(fname, NULL);
+ } else {
+ if (argc-- == 0)
+ break;
+ strlcpy(fname, *argv++, MAXPATHLEN);
+ if (sanitize_paths)
+ sanitize_path(fname, NULL);
+ }
+
+ l = strlen(fname);
+ if (fname[l - 1] == '/') {
+ if (l == 2 && fname[0] == '.') {
+ /* Turn "./" into just "." rather than "./." */
+ fname[1] = '\0';
+ } else {
+ strlcat(fname, ".", MAXPATHLEN);
+ }
+ }
+
+ if (link_stat(fname, &st) != 0) {
+ if (f != -1) {
+ io_error = 1;
+ rprintf(FERROR, "link_stat %s failed: %s\n",
+ full_fname(fname), strerror(errno));
+ }
+ continue;
+ }
+
+ if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
+ rprintf(FINFO, "skipping directory %s\n", fname);
+ continue;
+ }
+
+ dir = NULL;
+ olddir = NULL;
+
+ if (!relative_paths) {
+ p = strrchr(fname, '/');
+ if (p) {
+ *p = 0;
+ if (p == fname)
+ dir = "/";
+ else
+ dir = fname;
+ fname = p + 1;
+ }
+ } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
+ /* this ensures we send the intermediate directories,
+ thus getting 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++;
+ }
+ *p = '/';
+ if (fn != p || (*lp && *lp != '/')) {
+ int copy_links_saved = copy_links;
+ int recurse_saved = recurse;
+ copy_links = copy_unsafe_links;
+ /* set recurse to 1 to prevent make_file
+ * from ignoring directory, but still
+ * turn off the recursive parameter to
+ * send_file_name */
+ recurse = 1;
+ while ((slash = strchr(slash+1, '/')) != 0) {
+ *slash = 0;
+ send_file_name(f, flist, fname, 0, 0);
+ *slash = '/';
+ }
+ copy_links = copy_links_saved;
+ recurse = recurse_saved;
+ *p = 0;
+ strlcpy(lastpath, fname, sizeof lastpath);
+ *p = '/';
+ }
+ }
+
+ if (!*fname)
+ fname = ".";
+
+ if (dir && *dir) {
+ olddir = push_dir(dir, 1);
+
+ if (!olddir) {
+ io_error = 1;
+ rprintf(FERROR, "push_dir %s failed: %s\n",
+ full_fname(dir), strerror(errno));
+ continue;
+ }
+
+ flist_dir = dir;
+ }
+
+ if (one_file_system)
+ set_filesystem(fname);
+
+ send_file_name(f, flist, fname, recurse, FLAG_DELETE);
+
+ if (olddir != NULL) {
+ flist_dir = NULL;
+ if (pop_dir(olddir) != 0) {
+ rprintf(FERROR, "pop_dir %s failed: %s\n",
+ full_fname(dir), strerror(errno));
+ exit_cleanup(RERR_FILESELECT);
+ }
+ }
+ }
+
+ if (f != -1) {
+ send_file_entry(NULL, f, 0);
+ }
+
+ if (show_filelist_p() && f != -1) {
+ finish_filelist_progress(flist);
+ }
+
+ clean_flist(flist, 0, 0);
+
+ /* now send the uid/gid list. This was introduced in protocol
+ version 15 */
+ if (f != -1) {
+ send_uid_list(f);
+ }
+
+ /* send the io_error flag */
+ if (f != -1) {
+ extern int module_id;
+ write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
+ }
+
+ if (f != -1) {
+ io_end_buffering();
+ stats.flist_size = stats.total_written - start_write;
+ stats.num_files = flist->count;
+ if (write_batch) /* dw */
+ write_batch_flist_info(flist->count, flist->files);
+ }
+
+ if (verbose > 2)
+ rprintf(FINFO, "send_file_list done\n");
+
+ return flist;
}
struct file_list *recv_file_list(int f)
{
- struct file_list *flist;
- unsigned char flags;
+ struct file_list *flist;
+ unsigned char flags;
+ int64 start_read;
+ extern int list_only;
+
+ if (show_filelist_p())
+ start_filelist_progress("receiving file list");
+
+ start_read = stats.total_read;
+
+ flist = (struct file_list *) malloc(sizeof(flist[0]));
+ if (!flist)
+ goto oom;
+
+ flist->count = 0;
+ flist->malloced = 1000;
+ flist->files =
+ (struct file_struct **) malloc(sizeof(flist->files[0]) *
+ flist->malloced);
+ if (!flist->files)
+ goto oom;
+
+
+ for (flags = read_byte(f); flags; flags = read_byte(f)) {
+ int i = flist->count;
+
+ flist_expand(flist);
+
+ receive_file_entry(&flist->files[i], flags, f);
- if (verbose > 2)
- fprintf(stderr,"recv_file_list starting\n");
+ if (S_ISREG(flist->files[i]->mode))
+ stats.total_size += flist->files[i]->length;
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist)
- goto oom;
+ flist->count++;
- flist->count=0;
- flist->malloced=100;
- flist->files = (struct file_struct *)malloc(sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- goto oom;
+ maybe_emit_filelist_progress(flist);
+ if (verbose > 2)
+ rprintf(FINFO, "recv_file_name(%s)\n",
+ f_name(flist->files[i]));
+ }
- for (flags=read_byte(f); flags; flags=read_byte(f)) {
- int i = flist->count;
- 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;
- }
+ if (verbose > 2)
+ rprintf(FINFO, "received %d names\n", flist->count);
- receive_file_entry(&flist->files[i],flags,f);
+ clean_flist(flist, relative_paths, 1);
- if (S_ISREG(flist->files[i].mode))
- total_size += flist->files[i].length;
+ if (show_filelist_p()) {
+ finish_filelist_progress(flist);
+ }
- flist->count++;
+ /* now recv the uid/gid list. This was introduced in protocol version 15 */
+ if (f != -1) {
+ recv_uid_list(f, flist);
+ }
- if (verbose > 2)
- fprintf(stderr,"recv_file_name(%s)\n",flist->files[i].name);
- }
+ /* recv the io_error flag */
+ if (f != -1 && !read_batch) { /* dw-added readbatch */
+ extern int module_id;
+ extern int ignore_errors;
+ if (lp_ignore_errors(module_id) || ignore_errors) {
+ read_int(f);
+ } else {
+ io_error |= read_int(f);
+ }
+ }
+ if (list_only) {
+ int i;
+ for (i = 0; i < flist->count; i++) {
+ list_file_entry(flist->files[i]);
+ }
+ }
- if (verbose > 2)
- fprintf(stderr,"received %d names\n",flist->count);
- clean_flist(flist);
+ if (verbose > 2)
+ rprintf(FINFO, "recv_file_list done\n");
- return flist;
+ stats.flist_size = stats.total_read - start_read;
+ stats.num_files = flist->count;
-oom:
- out_of_memory("recv_file_list");
- return NULL; /* not reached */
+ return flist;
+
+ oom:
+ out_of_memory("recv_file_list");
+ return NULL; /* not reached */
}
-static int flist_compare(struct file_struct *f1,struct file_struct *f2)
+/*
+ * XXX: This is currently the hottest function while building the file
+ * list, because building f_name()s every time is expensive.
+ **/
+int file_compare(struct file_struct **f1, struct file_struct **f2)
{
- if (!f1->name && !f2->name) return 0;
- if (!f1->name) return -1;
- if (!f2->name) return 1;
- return strcmp(f1->name,f2->name);
+ if (!(*f1)->basename && !(*f2)->basename)
+ return 0;
+ if (!(*f1)->basename)
+ return -1;
+ if (!(*f2)->basename)
+ return 1;
+ if ((*f1)->dirname == (*f2)->dirname)
+ return u_strcmp((*f1)->basename, (*f2)->basename);
+ return u_strcmp(f_name(*f1), f_name(*f2));
}
-int flist_find(struct file_list *flist,struct file_struct *f)
+int flist_find(struct file_list *flist, struct file_struct *f)
{
- int low=0,high=flist->count;
-
- 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;
+ int low = 0, high = flist->count - 1;
+
+ while (high >= 0 && !flist->files[high]->basename) high--;
+
+ if (high < 0)
+ return -1;
+
+ while (low != high) {
+ int mid = (low + high) / 2;
+ int ret =
+ file_compare(&flist->files[flist_up(flist, mid)], &f);
+ if (ret == 0)
+ return flist_up(flist, mid);
+ if (ret > 0) {
+ high = mid;
+ } else {
+ low = mid + 1;
+ }
+ }
+
+ if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
+ return flist_up(flist, low);
+ return -1;
}
-static void clean_fname(char *name)
+/*
+ * free up one file
+ */
+void free_file(struct file_struct *file)
{
- char *p;
- int l;
- int modified = 1;
+ if (!file)
+ return;
+ if (file->basename)
+ free(file->basename);
+ if (file->link)
+ free(file->link);
+ if (file->sum)
+ free(file->sum);
+ *file = null_file;
+}
- if (!name) return;
- while (modified) {
- modified = 0;
+/*
+ * allocate a new file list
+ */
+struct file_list *flist_new(void)
+{
+ struct file_list *flist;
- if ((p=strstr(name,"/./"))) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
+ flist = (struct file_list *) malloc(sizeof(flist[0]));
+ if (!flist)
+ out_of_memory("send_file_list");
- if ((p=strstr(name,"//"))) {
- modified = 1;
- while (*p) {
- p[0] = p[1];
- p++;
- }
- }
+ flist->count = 0;
+ flist->malloced = 0;
+ flist->files = NULL;
- if (strncmp(p=name,"./",2) == 0) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
+#if ARENA_SIZE > 0
+ flist->string_area = string_area_new(0);
+#else
+ flist->string_area = NULL;
+#endif
+ return flist;
+}
- l = strlen(p=name);
- if (l > 1 && p[l-1] == '/') {
- modified = 1;
- p[l-1] = 0;
- }
- }
+/*
+ * free up all elements in a flist
+ */
+void flist_free(struct file_list *flist)
+{
+ int i;
+ for (i = 1; i < flist->count; i++) {
+ if (!flist->string_area)
+ free_file(flist->files[i]);
+ free(flist->files[i]);
+ }
+ /* FIXME: I don't think we generally need to blank the flist
+ * since it's about to be freed. This will just cause more
+ * memory traffic. If you want a freed-memory debugger, you
+ * know where to get it. */
+ memset((char *) flist->files, 0,
+ sizeof(flist->files[0]) * flist->count);
+ free(flist->files);
+ if (flist->string_area)
+ string_area_free(flist->string_area);
+ memset((char *) flist, 0, sizeof(*flist));
+ 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)
+{
+ int i, prev_i = 0;
+ char *name, *prev_name = NULL;
+
+ if (!flist || flist->count == 0)
+ 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 (flist->files[i]->basename) {
+ prev_i = i;
+ prev_name = f_name(flist->files[i]);
+ break;
+ }
+ }
+ while (++i < flist->count) {
+ if (!flist->files[i]->basename)
+ continue;
+ name = f_name(flist->files[i]);
+ if (strcmp(name, prev_name) == 0) {
+ if (verbose > 1 && !am_server) {
+ rprintf(FINFO,
+ "removing duplicate name %s from file list %d\n",
+ name, i);
+ }
+ /* Make sure that if we unduplicate '.', that we don't
+ * lose track of a user-specified starting point (or
+ * else deletions will mysteriously fail with -R). */
+ if (flist->files[i]->flags & FLAG_DELETE)
+ flist->files[prev_i]->flags |= FLAG_DELETE;
+ /* it's not great that the flist knows the semantics of
+ * the file memory usage, but i'd rather not add a flag
+ * byte to that struct.
+ * XXX can i use a bit in the flags field? */
+ if (flist->string_area)
+ flist->files[i][0] = null_file;
+ else
+ free_file(flist->files[i]);
+ }
+ else
+ prev_i = i;
+ /* We set prev_name every iteration to avoid it becoming
+ * invalid when names[][] in f_name() wraps around. */
+ prev_name = name;
+ }
+
+ if (strip_root) {
+ /* we need to strip off the root directory in the case
+ of relative paths, but this must be done _after_
+ the sorting phase */
+ for (i = 0; i < flist->count; i++) {
+ if (flist->files[i]->dirname &&
+ flist->files[i]->dirname[0] == '/') {
+ memmove(&flist->files[i]->dirname[0],
+ &flist->files[i]->dirname[1],
+ strlen(flist->files[i]->dirname));
+ }
+
+ if (flist->files[i]->dirname &&
+ !flist->files[i]->dirname[0]) {
+ flist->files[i]->dirname = NULL;
+ }
+ }
+ }
+
+ if (verbose <= 3)
+ return;
+
+ for (i = 0; i < flist->count; i++) {
+ rprintf(FINFO, "[%d] i=%d %s %s mode=0%o len=%.0f\n",
+ (int) getpid(), i,
+ NS(flist->files[i]->dirname),
+ NS(flist->files[i]->basename),
+ (int) flist->files[i]->mode,
+ (double) flist->files[i]->length);
+ }
}
+
+/*
+ * return the full filename of a flist entry
+ *
+ * This function is too expensive at the moment, because it copies
+ * strings when often we only want to compare them. In any case,
+ * using strlcat is silly because it will walk the string repeatedly.
+ */
+char *f_name(struct file_struct *f)
+{
+ static char names[10][MAXPATHLEN];
+ static int n;
+ char *p = names[n];
+
+ if (!f || !f->basename)
+ return NULL;
+
+ n = (n + 1) % 10;
+
+ if (f->dirname) {
+ int off;
+
+ off = strlcpy(p, f->dirname, MAXPATHLEN);
+ off += strlcpy(p + off, "/", MAXPATHLEN - off);
+ off += strlcpy(p + off, f->basename, MAXPATHLEN - off);
+ } else {
+ strlcpy(p, f->basename, MAXPATHLEN);
+ }
+
+ return p;
+}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff