Made itemize() output the fnamecmp_type and the fuzzy name based on
[rsync/rsync.git] / receiver.c
index e129b1d..b0a9ebd 100644 (file)
 #include "rsync.h"
 
 extern int verbose;
-extern int delete_after;
-extern int csum_length;
-extern struct stats stats;
 extern int dry_run;
+extern int am_daemon;
+extern int am_server;
+extern int do_progress;
+extern int log_before_transfer;
+extern int log_format_has_i;
+extern int daemon_log_format_has_i;
+extern int csum_length;
 extern int read_batch;
 extern int batch_gen_fd;
-extern int am_server;
 extern int protocol_version;
 extern int relative_paths;
 extern int keep_dirlinks;
 extern int preserve_hard_links;
 extern int preserve_perms;
 extern int io_error;
-extern char *tmpdir;
-extern char *partial_dir;
-extern char *basis_dir[];
 extern int basis_dir_cnt;
 extern int make_backups;
-extern int do_progress;
 extern int cleanup_got_literal;
+extern int remove_sent_files;
 extern int module_id;
 extern int ignore_errors;
 extern int orig_umask;
@@ -48,38 +48,75 @@ extern int keep_partial;
 extern int checksum_seed;
 extern int inplace;
 extern int delay_updates;
+extern struct stats stats;
+extern char *log_format;
+extern char *tmpdir;
+extern char *partial_dir;
+extern char *basis_dir[];
 
 extern struct filter_list_struct server_filter_list;
 
+#define SLOT_SIZE      (16*1024)       /* Desired size in bytes */
+#define PER_SLOT_BITS  (SLOT_SIZE * 8) /* Number of bits per slot */
+#define PER_SLOT_INTS  (SLOT_SIZE / 4) /* Number of int32s per slot */
+
+static uint32 **delayed_bits = NULL;
+static int delayed_slot_cnt = 0;
 
-/* This deletes any files on the receiving side that are not present on the
- * sending side.  This is used by --delete-before and --delete-after. */
-void delete_files(struct file_list *flist)
+static void init_delayed_bits(int max_ndx)
 {
-       struct file_list *dir_list;
-       char *argv[1], fbuf[MAXPATHLEN];
-       int j;
-
-       if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) {
-               rprintf(FINFO,
-                       "IO error encountered - skipping file deletion\n");
-               return;
-       }
+       delayed_slot_cnt = (max_ndx + PER_SLOT_BITS - 1) / PER_SLOT_BITS;
 
-       for (j = 0; j < flist->count; j++) {
-               if (!(flist->files[j]->flags & FLAG_DEL_START)
-                   || !S_ISDIR(flist->files[j]->mode))
-                       continue;
+       if (!(delayed_bits = (uint32**)calloc(delayed_slot_cnt, sizeof (uint32*))))
+               out_of_memory("set_delayed_bit");
+}
 
-               argv[0] = f_name_to(flist->files[j], fbuf);
+static void set_delayed_bit(int ndx)
+{
+       int slot = ndx / PER_SLOT_BITS;
+       ndx %= PER_SLOT_BITS;
 
-               if (!(dir_list = send_file_list(-1, 1, argv)))
-                       continue;
+       if (!delayed_bits[slot]) {
+               if (!(delayed_bits[slot] = (uint32*)calloc(PER_SLOT_INTS, 4)))
+                       out_of_memory("set_delayed_bit");
+       }
 
-               delete_missing(flist, dir_list, fbuf);
+       delayed_bits[slot][ndx/32] |= 1u << (ndx % 32);
+}
 
-               flist_free(dir_list);
+/* Call this with -1 to start checking from 0.  Returns -1 at the end. */
+static int next_delayed_bit(int after)
+{
+       uint32 bits, mask;
+       int i, ndx = after + 1;
+       int slot = ndx / PER_SLOT_BITS;
+       ndx %= PER_SLOT_BITS;
+
+       mask = (1u << (ndx % 32)) - 1;
+       for (i = ndx / 32; slot < delayed_slot_cnt; slot++, i = mask = 0) {
+               if (!delayed_bits[slot])
+                       continue;
+               for ( ; i < PER_SLOT_INTS; i++, mask = 0) {
+                       if (!(bits = delayed_bits[slot][i] & ~mask))
+                               continue;
+                       /* The xor magic figures out the lowest enabled bit in
+                        * bits, and the switch quickly computes log2(bit). */
+                       switch (bits ^ (bits & (bits-1))) {
+#define LOG2(n) case 1u << n: return slot*PER_SLOT_BITS + i*32 + n
+                           LOG2(0);  LOG2(1);  LOG2(2);  LOG2(3);
+                           LOG2(4);  LOG2(5);  LOG2(6);  LOG2(7);
+                           LOG2(8);  LOG2(9);  LOG2(10); LOG2(11);
+                           LOG2(12); LOG2(13); LOG2(14); LOG2(15);
+                           LOG2(16); LOG2(17); LOG2(18); LOG2(19);
+                           LOG2(20); LOG2(21); LOG2(22); LOG2(23);
+                           LOG2(24); LOG2(25); LOG2(26); LOG2(27);
+                           LOG2(28); LOG2(29); LOG2(30); LOG2(31);
+                       }
+                       return -1; /* impossible... */
+               }
        }
+
+       return -1;
 }
 
 
@@ -132,7 +169,8 @@ static int get_tmpname(char *fnametmp, char *fname)
        maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 
        if (maxname < 1) {
-               rprintf(FERROR, "temporary filename too long: %s\n", fname);
+               rprintf(FERROR, "temporary filename too long: %s\n",
+                       safe_fname(fname));
                fnametmp[0] = '\0';
                return 0;
        }
@@ -236,7 +274,7 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
        if (flush_write_file(fd) < 0)
                goto report_write_error;
 
-#if HAVE_FTRUNCATE
+#ifdef HAVE_FTRUNCATE
        if (inplace && fd != -1)
                ftruncate(fd, offset);
 #endif
@@ -265,6 +303,20 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
 }
 
 
+static void read_gen_name(int fd, char *dirname, char *buf)
+{
+       int dlen;
+
+       if (dirname) {
+               dlen = strlcpy(buf, dirname, MAXPATHLEN);
+               buf[dlen++] = '/';
+       } else
+               dlen = 0;
+
+       read_vstring(fd, buf + dlen, MAXPATHLEN - dlen);
+}
+
+
 static void discard_receive_data(int f_in, OFF_T length)
 {
        receive_data(f_in, NULL, -1, 0, NULL, -1, length);
@@ -281,15 +333,17 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
        int next_gen_i = -1;
        int fd1,fd2;
        STRUCT_STAT st;
+       int iflags;
        char *fname, fbuf[MAXPATHLEN];
        char template[MAXPATHLEN];
        char fnametmp[MAXPATHLEN];
-       char *fnamecmp, *partialptr;
+       char *fnamecmp, *partialptr, numbuf[4];
        char fnamecmpbuf[MAXPATHLEN];
-       uchar *delayed_bits = NULL;
        struct file_struct *file;
        struct stats initial_stats;
        int save_make_backups = make_backups;
+       int itemizing = am_daemon ? daemon_log_format_has_i
+                     : !am_server && log_format_has_i;
        int i, recv_ok, phase = 0;
 
        if (verbose > 2)
@@ -300,12 +354,8 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                flist->hlink_pool = NULL;
        }
 
-       if (delay_updates) {
-               int sz = (flist->count + 7) / 8;
-               if (!(delayed_bits = new_array(uchar, sz)))
-                       out_of_memory("recv_files");
-               memset(delayed_bits, 0, sz);
-       }
+       if (delay_updates)
+               init_delayed_bits(flist->count);
 
        while (1) {
                cleanup_disable();
@@ -336,35 +386,38 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                        continue;
                }
 
-               if (i < 0 || i >= flist->count) {
-                       rprintf(FERROR,"Invalid file index %d in recv_files (count=%d)\n",
-                               i, flist->count);
-                       exit_cleanup(RERR_PROTOCOL);
-               }
+               iflags = read_iflags(f_in, -1, i, fnametmp);
+               if (iflags == ITEM_IS_NEW) /* no-op packet */
+                       continue;
 
                file = flist->files[i];
+               fname = local_name ? local_name : f_name_to(file, fbuf);
+
+               if (verbose > 2)
+                       rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));
+
+               if (!(iflags & ITEM_TRANSFER)) {
+                       maybe_log_item(file, iflags, itemizing, fnametmp);
+                       continue;
+               }
 
                stats.current_file_index = i;
                stats.num_transferred_files++;
                stats.total_transferred_size += file->length;
                cleanup_got_literal = 0;
 
-               if (local_name)
-                       fname = local_name;
-               else
-                       fname = f_name_to(file, fbuf);
+               if (server_filter_list.head
+                   && check_filter(&server_filter_list, fname, 0) < 0) {
+                       rprintf(FERROR, "attempt to hack rsync failed.\n");
+                       exit_cleanup(RERR_PROTOCOL);
+               }
 
-               if (dry_run) {
-                       if (!am_server && verbose) /* log the transfer */
-                               rprintf(FINFO, "%s\n", safe_fname(fname));
+               if (dry_run) { /* log the transfer */
+                       if (!am_server && log_format)
+                               log_item(file, &stats, iflags, NULL);
                        continue;
                }
 
-               initial_stats = stats;
-
-               if (verbose > 2)
-                       rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));
-
                if (read_batch) {
                        while (i > next_gen_i) {
                                if (f_in_name >= 0 && next_gen_i >= 0)
@@ -382,13 +435,6 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                        next_gen_i = -1;
                }
 
-               if (server_filter_list.head
-                   && check_filter(&server_filter_list, fname,
-                                    S_ISDIR(file->mode)) < 0) {
-                       rprintf(FERROR, "attempt to hack rsync failed.\n");
-                       exit_cleanup(RERR_PROTOCOL);
-               }
-
                partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 
                if (f_in_name >= 0) {
@@ -403,6 +449,10 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                        case FNAMECMP_BACKUP:
                                fnamecmp = get_backup_name(fname);
                                break;
+                       case FNAMECMP_FUZZY:
+                               read_gen_name(f_in_name, file->dirname, fnamecmpbuf);
+                               fnamecmp = fnamecmpbuf;
+                               break;
                        default:
                                if (j >= basis_dir_cnt) {
                                        rprintf(FERROR,
@@ -418,6 +468,8 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                } else
                        fnamecmp = fname;
 
+               initial_stats = stats;
+
                /* open the file */
                fd1 = do_open(fnamecmp, O_RDONLY, 0);
 
@@ -504,14 +556,18 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                                cleanup_set(fnametmp, partialptr, file, fd1, fd2);
                }
 
-               if (!am_server && verbose) /* log the transfer */
+               /* log the transfer */
+               if (log_before_transfer)
+                       log_item(file, &initial_stats, iflags, NULL);
+               else if (!am_server && verbose && do_progress)
                        rprintf(FINFO, "%s\n", safe_fname(fname));
 
                /* recv file data */
                recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
                                       fname, fd2, file->length);
 
-               log_recv(file, &initial_stats);
+               if (!log_before_transfer)
+                       log_item(file, &initial_stats, iflags, NULL);
 
                if (fd1 != -1)
                        close(fd1);
@@ -521,7 +577,7 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                        exit_cleanup(RERR_FILEIO);
                }
 
-               if ((recv_ok && !delay_updates) || inplace) {
+               if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
                        finish_transfer(fname, fnametmp, file, recv_ok, 1);
                        if (partialptr != fname && fnamecmp == partialptr) {
                                do_unlink(partialptr);
@@ -531,8 +587,10 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                    && handle_partial_dir(partialptr, PDIR_CREATE)) {
                        finish_transfer(partialptr, fnametmp, file, recv_ok,
                                        !partial_dir);
-                       if (delay_updates && recv_ok)
-                               delayed_bits[i/8] |= 1 << (i % 8);
+                       if (delay_updates && recv_ok) {
+                               set_delayed_bit(i);
+                               recv_ok = -1;
+                       }
                } else {
                        partialptr = NULL;
                        do_unlink(fnametmp);
@@ -540,9 +598,14 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
 
                cleanup_disable();
 
-               if (!recv_ok) {
-                       int msgtype = csum_length == SUM_LENGTH || read_batch ?
-                               FERROR : FINFO;
+               if (recv_ok > 0) {
+                       if (remove_sent_files
+                           || (preserve_hard_links && file->link_u.links)) {
+                               SIVAL(numbuf, 0, i);
+                               send_msg(MSG_SUCCESS, numbuf, 4);
+                       }
+               } else if (!recv_ok) {
+                       int msgtype = phase || read_batch ? FERROR : FINFO;
                        if (msgtype == FERROR || verbose) {
                                char *errstr, *redostr, *keptstr;
                                if (!(keep_partial && partialptr) && !inplace)
@@ -563,21 +626,17 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                                        errstr, safe_fname(fname),
                                        keptstr, redostr);
                        }
-                       if (csum_length != SUM_LENGTH) {
-                               char buf[4];
-                               SIVAL(buf, 0, i);
-                               send_msg(MSG_REDO, buf, 4);
+                       if (!phase) {
+                               SIVAL(numbuf, 0, i);
+                               send_msg(MSG_REDO, numbuf, 4);
                        }
                }
        }
        make_backups = save_make_backups;
 
        if (delay_updates) {
-               for (i = 0; i < flist->count; i++) {
+               for (i = -1; (i = next_delayed_bit(i)) >= 0; ) {
                        struct file_struct *file = flist->files[i];
-                       if (!file->basename
-                        || !(delayed_bits[i/8] & (1 << (i % 8))))
-                               continue;
                        fname = local_name ? local_name : f_name(file);
                        partialptr = partial_dir_fname(fname);
                        if (partialptr) {
@@ -585,13 +644,21 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                                        continue;
                                if (verbose > 2) {
                                        rprintf(FINFO, "renaming %s to %s\n",
-                                               partialptr, fname);
+                                               safe_fname(partialptr),
+                                               safe_fname(fname));
                                }
                                if (do_rename(partialptr, fname) < 0) {
                                        rsyserr(FERROR, errno,
                                                "rename failed for %s (from %s)",
-                                               fname, partialptr);
+                                               full_fname(fname),
+                                               safe_fname(partialptr));
                                } else {
+                                       if (remove_sent_files
+                                           || (preserve_hard_links
+                                            && file->link_u.links)) {
+                                               SIVAL(numbuf, 0, i);
+                                               send_msg(MSG_SUCCESS,numbuf,4);
+                                       }
                                        handle_partial_dir(partialptr,
                                                           PDIR_DELETE);
                                }
@@ -599,9 +666,6 @@ int recv_files(int f_in, struct file_list *flist, char *local_name,
                }
        }
 
-       if (delete_after && !local_name && flist->count > 0)
-               delete_files(flist);
-
        if (verbose > 2)
                rprintf(FINFO,"recv_files finished\n");