extern int csum_length;
extern int ignore_times;
extern int size_only;
+extern OFF_T max_size;
extern int io_timeout;
extern int protocol_version;
extern int always_checksum;
extern char *partial_dir;
-extern char *compare_dest;
+extern char *basis_dir[];
+extern int copy_dest;
extern int link_dest;
extern int whole_file;
extern int local_server;
extern struct exclude_list_struct server_exclude_list;
-
-/* choose whether to skip a particular file */
-static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st)
+static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
{
- if (st->st_size != file->length)
+ if (preserve_perms
+ && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
+ return 0;
+
+ if (am_root && preserve_uid && st->st_uid != file->uid)
return 0;
- if (link_dest) {
- if (preserve_perms
- && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
- return 0;
- if (am_root && preserve_uid && st->st_uid != file->uid)
- return 0;
+ if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
+ return 0;
- if (preserve_gid && file->gid != GID_NONE
- && st->st_gid != file->gid)
- return 0;
- }
+ return 1;
+}
+
+/* Perform our quick-check heuristic for determining if a file is unchanged. */
+static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
+{
+ if (st->st_size != file->length)
+ return 0;
/* if always checksum is set then we use the checksum instead
of the file time to determine whether to sync */
if (always_checksum && S_ISREG(st->st_mode)) {
char sum[MD4_SUM_LENGTH];
- file_checksum(fname,sum,st->st_size);
+ file_checksum(fn, sum, st->st_size);
return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
: MD4_SUM_LENGTH) == 0;
}
*
* This might be made one of several selectable heuristics.
*/
-
static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len)
{
unsigned int blength;
* out. It might be wrong.
*/
static void recv_generator(char *fname, struct file_struct *file, int i,
- int f_out)
+ int f_out, int f_out_name)
{
- int fd, f_copy;
+ int fd = -1, f_copy = -1;
STRUCT_STAT st, partial_st;
- struct file_struct *back_file;
+ struct file_struct *back_file = NULL;
int statret, stat_errno;
- char *fnamecmp, *partialptr, *backupptr;
+ char *fnamecmp, *partialptr, *backupptr = NULL;
char fnamecmpbuf[MAXPATHLEN];
+ uchar fnamecmp_type;
if (list_only)
return;
&& verbose && f_out != -1)
rprintf(FINFO, "%s/\n", safe_fname(fname));
return;
+ } else if (max_size && file->length > max_size) {
+ if (verbose > 1)
+ rprintf(FINFO, "%s is over max-size\n", fname);
+ return;
}
if (preserve_links && S_ISLNK(file->mode)) {
return;
}
-#ifdef HAVE_MKNOD
if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
if (statret != 0 ||
st.st_mode != file->mode ||
}
return;
}
-#endif
if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER))
return;
}
fnamecmp = fname;
+ fnamecmp_type = FNAMECMP_FNAME;
- if (statret == -1 && compare_dest != NULL) {
- /* try the file at compare_dest instead */
- pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname);
- if (link_stat(fnamecmpbuf, &st, 0) == 0
- && S_ISREG(st.st_mode)) {
+ if (statret == -1 && basis_dir[0] != NULL) {
+ int fallback_match = -1;
+ int match_level = 0;
+ int i = 0;
+ do {
+ pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
+ basis_dir[i], fname);
+ if (link_stat(fnamecmpbuf, &st, 0) == 0
+ && S_ISREG(st.st_mode)) {
+ statret = 0;
+ if (link_dest) {
+ if (!match_level) {
+ fallback_match = i;
+ match_level = 1;
+ } else if (match_level == 2
+ && !unchanged_attrs(file, &st))
+ continue;
+ if (!unchanged_file(fnamecmpbuf, file, &st))
+ continue;
+ fallback_match = i;
+ match_level = 2;
+ if (!unchanged_attrs(file, &st))
+ continue;
+ }
+ match_level = 3;
+ break;
+ }
+ } while (basis_dir[++i] != NULL);
+ if (statret == 0) {
+ if (match_level < 3) {
+ i = fallback_match;
+ pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
+ basis_dir[i], fname);
+ }
#if HAVE_LINK
- if (link_dest && !dry_run) {
+ if (link_dest && match_level == 3 && !dry_run) {
if (do_link(fnamecmpbuf, fname) < 0) {
if (verbose) {
rsyserr(FINFO, errno,
safe_fname(fname));
}
fnamecmp = fnamecmpbuf;
+ fnamecmp_type = FNAMECMP_BASIS_DIR + i;
}
} else
#endif
+ {
fnamecmp = fnamecmpbuf;
- statret = 0;
+ fnamecmp_type = FNAMECMP_BASIS_DIR + i;
+ }
}
}
if (statret == -1) {
if (preserve_hard_links && hard_link_check(file, HL_SKIP))
return;
- if (stat_errno == ENOENT) {
- write_int(f_out,i);
- if (!dry_run && !read_batch)
- write_sum_head(f_out, NULL);
- } else if (verbose > 1) {
+ if (stat_errno == ENOENT)
+ goto notify_others;
+ if (verbose > 1) {
rsyserr(FERROR, stat_errno,
"recv_generator: failed to stat %s",
full_fname(fname));
return;
}
- if (opt_ignore_existing && fnamecmp == fname) {
+ if (opt_ignore_existing && fnamecmp_type == FNAMECMP_FNAME) {
if (verbose > 1)
rprintf(FINFO, "%s exists\n", safe_fname(fname));
return;
}
- if (update_only && fnamecmp == fname
+ if (update_only && fnamecmp_type == FNAMECMP_FNAME
&& cmp_modtime(st.st_mtime, file->modtime) > 0) {
if (verbose > 1)
rprintf(FINFO, "%s is newer\n", safe_fname(fname));
return;
}
- if (skip_file(fnamecmp, file, &st)) {
- if (fnamecmp == fname)
+ if ((link_dest || copy_dest) && fnamecmp_type != FNAMECMP_FNAME)
+ ;
+ else if (unchanged_file(fnamecmp, file, &st)) {
+ if (fnamecmp_type == FNAMECMP_FNAME)
set_perms(fname, file, &st, PERMS_REPORT);
return;
}
prepare_to_open:
- if (dry_run || read_batch) {
- write_int(f_out,i);
- return;
- }
-
- if (whole_file > 0) {
- write_int(f_out,i);
- write_sum_head(f_out, NULL);
- return;
+ if (dry_run || whole_file > 0) {
+ statret = -1;
+ goto notify_others;
}
+ if (read_batch)
+ goto notify_others;
if (partialptr) {
st = partial_st;
fnamecmp = partialptr;
+ fnamecmp_type = FNAMECMP_PARTIAL_DIR;
}
/* open the file */
/* pretend the file didn't exist */
if (preserve_hard_links && hard_link_check(file, HL_SKIP))
return;
- write_int(f_out,i);
- write_sum_head(f_out, NULL);
- return;
+ statret = -1;
+ goto notify_others;
}
if (inplace && make_backups) {
close(fd);
return;
}
- } else {
- backupptr = NULL;
- back_file = NULL;
- f_copy = -1;
+ fnamecmp_type = FNAMECMP_BACKUP;
}
if (verbose > 3) {
if (verbose > 2)
rprintf(FINFO, "generating and sending sums for %d\n", i);
- write_int(f_out,i);
- generate_and_send_sums(fd, st.st_size, f_out, f_copy);
+notify_others:
+ write_int(f_out, i);
+ if (f_out_name >= 0)
+ write_byte(f_out_name, fnamecmp_type);
- if (f_copy >= 0) {
- close(f_copy);
- set_perms(backupptr, back_file, NULL, 0);
- if (verbose > 1)
- rprintf(FINFO, "backed up %s to %s\n", fname, backupptr);
- free(back_file);
- }
+ if (dry_run || read_batch)
+ return;
+
+ if (statret == 0) {
+ generate_and_send_sums(fd, st.st_size, f_out, f_copy);
+
+ if (f_copy >= 0) {
+ close(f_copy);
+ set_perms(backupptr, back_file, NULL, 0);
+ if (verbose > 1) {
+ rprintf(FINFO, "backed up %s to %s\n",
+ fname, backupptr);
+ }
+ free(back_file);
+ }
- close(fd);
+ close(fd);
+ } else
+ write_sum_head(f_out, NULL);
}
-void generate_files(int f_out, struct file_list *flist, char *local_name)
+void generate_files(int f_out, struct file_list *flist, char *local_name,
+ int f_out_name)
{
int i;
int phase = 0;
}
recv_generator(local_name ? local_name : f_name_to(file, fbuf),
- file, i, f_out);
+ file, i, f_out, f_out_name);
}
phase++;
while ((i = get_redo_num()) != -1) {
struct file_struct *file = flist->files[i];
recv_generator(local_name ? local_name : f_name_to(file, fbuf),
- file, i, f_out);
+ file, i, f_out, f_out_name);
}
phase++;
if (!file->basename || !S_ISDIR(file->mode))
continue;
recv_generator(local_name ? local_name : f_name(file),
- file, i, -1);
+ file, i, -1, -1);
}
if (verbose > 2)