Switching to GPL 3.
[rsync/rsync.git] / receiver.c
index 26ed324..efeb2a9 100644 (file)
@@ -3,12 +3,11 @@
  *
  * Copyright (C) 1996-2000 Andrew Tridgell
  * Copyright (C) 1996 Paul Mackerras
- * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
+ * Copyright (C) 2003-2007 Wayne Davison
  *
  * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * it under the terms of the GNU General Public License version 3 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
  * 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.
+ * with this program; if not, visit the http://fsf.org website.
  */
 
 #include "rsync.h"
 
 extern int verbose;
+extern int dry_run;
 extern int do_xfers;
 extern int am_server;
 extern int do_progress;
-extern int incremental;
+extern int inc_recurse;
 extern int log_before_transfer;
 extern int stdout_format_has_i;
 extern int logfile_format_has_i;
@@ -38,6 +37,7 @@ extern int protocol_version;
 extern int relative_paths;
 extern int preserve_hard_links;
 extern int preserve_perms;
+extern int preserve_xattrs;
 extern int basis_dir_cnt;
 extern int make_backups;
 extern int cleanup_got_literal;
@@ -48,8 +48,8 @@ extern int keep_partial;
 extern int checksum_seed;
 extern int inplace;
 extern int delay_updates;
+extern mode_t orig_umask;
 extern struct stats stats;
-extern char *stdout_format;
 extern char *tmpdir;
 extern char *partial_dir;
 extern char *basis_dir[];
@@ -57,7 +57,7 @@ extern struct file_list *cur_flist, *first_flist;
 extern struct filter_list_struct server_filter_list;
 
 static struct bitbag *delayed_bits = NULL;
-static int phase = 0;
+static int phase = 0, redoing = 0;
 /* We're either updating the basis file or an identical copy: */
 static int updating_basis;
 
@@ -124,13 +124,13 @@ int get_tmpname(char *fnametmp, char *fname)
 
 
 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
-                       char *fname, int fd, OFF_T total_size)
+                       const char *fname, int fd, OFF_T total_size)
 {
-       static char file_sum1[MD4_SUM_LENGTH];
-       static char file_sum2[MD4_SUM_LENGTH];
+       static char file_sum1[MAX_DIGEST_LEN];
+       static char file_sum2[MAX_DIGEST_LEN];
        struct map_struct *mapbuf;
        struct sum_struct sum;
-       int32 len;
+       int32 len, sum_len;
        OFF_T offset = 0;
        OFF_T offset2;
        char *data;
@@ -258,15 +258,15 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
                exit_cleanup(RERR_FILEIO);
        }
 
-       sum_end(file_sum1);
+       sum_len = sum_end(file_sum1);
 
        if (mapbuf)
                unmap_file(mapbuf);
 
-       read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
+       read_buf(f_in, file_sum2, sum_len);
        if (verbose > 2)
                rprintf(FINFO,"got file_sum\n");
-       if (fd != -1 && memcmp(file_sum1, file_sum2, MD4_SUM_LENGTH) != 0)
+       if (fd != -1 && memcmp(file_sum1, file_sum2, sum_len) != 0)
                return 0;
        return 1;
 }
@@ -314,12 +314,12 @@ static int get_next_gen_ndx(int fd, int next_gen_ndx, int desired_ndx)
                if (next_gen_ndx >= 0) {
                        rprintf(FINFO,
                                "(No batched update for%s \"%s\")\n",
-                               phase ? " resend of" : "",
+                               redoing ? " resend of" : "",
                                f_name(cur_flist->files[next_gen_ndx], NULL));
                }
                next_gen_ndx = read_int(fd);
                if (next_gen_ndx == -1) {
-                       if (incremental)
+                       if (inc_recurse)
                                next_gen_ndx = first_flist->prev->count + first_flist->prev->ndx_start;
                        else
                                next_gen_ndx = cur_flist->count;
@@ -349,6 +349,10 @@ int recv_files(int f_in, char *local_name)
        int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
        enum logcode log_code = log_before_transfer ? FLOG : FINFO;
        int max_phase = protocol_version >= 29 ? 2 : 1;
+       int dflt_perms = (ACCESSPERMS & ~orig_umask);
+#ifdef SUPPORT_ACLS
+       const char *parent_dirname = "";
+#endif
        int ndx, recv_ok;
 
        if (verbose > 2)
@@ -363,16 +367,16 @@ int recv_files(int f_in, char *local_name)
                cleanup_disable();
 
                /* This call also sets cur_flist. */
-               ndx = read_ndx_and_attrs(f_in, -1, &iflags,
-                                        &fnamecmp_type, xname, &xlen);
+               ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
+                                        xname, &xlen);
                if (ndx == NDX_DONE) {
-                       if (incremental && first_flist) {
+                       if (inc_recurse && first_flist) {
                                flist_free(first_flist);
                                if (first_flist)
                                        continue;
                        }
                        if (read_batch && cur_flist) {
-                               int high = incremental
+                               int high = inc_recurse
                                    ? first_flist->prev->count + first_flist->prev->ndx_start
                                    : cur_flist->count;
                                get_next_gen_ndx(batch_gen_fd, next_gen_ndx, high);
@@ -384,7 +388,7 @@ int recv_files(int f_in, char *local_name)
                                rprintf(FINFO, "recv_files phase=%d\n", phase);
                        if (phase == 2 && delay_updates)
                                handle_delayed_updates(local_name);
-                       send_msg(MSG_DONE, "", 0);
+                       send_msg(MSG_DONE, "", 0, 0);
                        continue;
                }
 
@@ -394,8 +398,17 @@ int recv_files(int f_in, char *local_name)
                if (verbose > 2)
                        rprintf(FINFO, "recv_files(%s)\n", fname);
 
+#ifdef SUPPORT_XATTRS
+               if (iflags & ITEM_REPORT_XATTR && !dry_run)
+                       recv_xattr_request(file, f_in);
+#endif
+
                if (!(iflags & ITEM_TRANSFER)) {
                        maybe_log_item(file, iflags, itemizing, xname);
+#ifdef SUPPORT_XATTRS
+                       if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
+                               set_file_attrs(fname, file, NULL, fname, 0);
+#endif
                        continue;
                }
                if (phase == 2) {
@@ -412,6 +425,7 @@ int recv_files(int f_in, char *local_name)
                                append_mode = -append_mode;
                                sparse_files = -sparse_files;
                                csum_length = SUM_LENGTH;
+                               redoing = 1;
                        }
                } else {
                        if (csum_length != SHORT_SUM_LENGTH) {
@@ -420,6 +434,7 @@ int recv_files(int f_in, char *local_name)
                                append_mode = -append_mode;
                                sparse_files = -sparse_files;
                                csum_length = SHORT_SUM_LENGTH;
+                               redoing = 0;
                        }
                }
 
@@ -454,6 +469,8 @@ int recv_files(int f_in, char *local_name)
                                        "(Skipping batched update for \"%s\")\n",
                                        fname);
                                discard_receive_data(f_in, F_LENGTH(file));
+                               if (inc_recurse)
+                                       send_msg_int(MSG_NO_SEND, ndx);
                                continue;
                        }
                        next_gen_ndx = -1;
@@ -537,6 +554,8 @@ int recv_files(int f_in, char *local_name)
                                full_fname(fnamecmp));
                        discard_receive_data(f_in, F_LENGTH(file));
                        close(fd1);
+                       if (inc_recurse)
+                               send_msg_int(MSG_NO_SEND, ndx);
                        continue;
                }
 
@@ -550,6 +569,8 @@ int recv_files(int f_in, char *local_name)
                                full_fname(fnamecmp));
                        discard_receive_data(f_in, F_LENGTH(file));
                        close(fd1);
+                       if (inc_recurse)
+                               send_msg_int(MSG_NO_SEND, ndx);
                        continue;
                }
 
@@ -562,7 +583,16 @@ int recv_files(int f_in, char *local_name)
                 * mode based on the local permissions and some heuristics. */
                if (!preserve_perms) {
                        int exists = fd1 != -1;
-                       file->mode = dest_mode(file->mode, st.st_mode, exists);
+#ifdef SUPPORT_ACLS
+                       const char *dn = file->dirname ? file->dirname : ".";
+                       if (parent_dirname != dn
+                        && strcmp(parent_dirname, dn) != 0) {
+                               dflt_perms = default_perms_for_dir(dn);
+                               parent_dirname = dn;
+                       }
+#endif
+                       file->mode = dest_mode(file->mode, st.st_mode,
+                                              dflt_perms, exists);
                }
 
                /* We now check to see if we are writing the file "inplace" */
@@ -574,6 +604,8 @@ int recv_files(int f_in, char *local_name)
                                discard_receive_data(f_in, F_LENGTH(file));
                                if (fd1 != -1)
                                        close(fd1);
+                               if (inc_recurse)
+                                       send_msg_int(MSG_NO_SEND, ndx);
                                continue;
                        }
                } else {
@@ -581,6 +613,8 @@ int recv_files(int f_in, char *local_name)
                                discard_receive_data(f_in, F_LENGTH(file));
                                if (fd1 != -1)
                                        close(fd1);
+                               if (inc_recurse)
+                                       send_msg_int(MSG_NO_SEND, ndx);
                                continue;
                        }
 
@@ -607,6 +641,8 @@ int recv_files(int f_in, char *local_name)
                                discard_receive_data(f_in, F_LENGTH(file));
                                if (fd1 != -1)
                                        close(fd1);
+                               if (inc_recurse)
+                                       send_msg_int(MSG_NO_SEND, ndx);
                                continue;
                        }
 
@@ -641,15 +677,15 @@ int recv_files(int f_in, char *local_name)
                                temp_copy_name = NULL;
                        else
                                temp_copy_name = partialptr;
-                       finish_transfer(fname, fnametmp, temp_copy_name,
-                                       file, recv_ok, 1);
+                       finish_transfer(fname, fnametmp, fnamecmp,
+                                       temp_copy_name, file, recv_ok, 1);
                        if (fnamecmp == partialptr) {
                                do_unlink(partialptr);
                                handle_partial_dir(partialptr, PDIR_DELETE);
                        }
                } else if (keep_partial && partialptr
                    && handle_partial_dir(partialptr, PDIR_CREATE)) {
-                       finish_transfer(partialptr, fnametmp, NULL,
+                       finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
                                        file, recv_ok, !partial_dir);
                        if (delay_updates && recv_ok) {
                                bitbag_set_bit(delayed_bits, ndx);
@@ -663,11 +699,11 @@ int recv_files(int f_in, char *local_name)
                cleanup_disable();
 
                if (recv_ok > 0) {
-                       if (remove_source_files || incremental
+                       if (remove_source_files || inc_recurse
                         || (preserve_hard_links && F_IS_HLINKED(file)))
                                send_msg_int(MSG_SUCCESS, ndx);
                } else if (!recv_ok) {
-                       enum logcode msgtype = phase || read_batch ? FERROR : FINFO;
+                       enum logcode msgtype = redoing || read_batch ? FERROR : FINFO;
                        if (msgtype == FERROR || verbose) {
                                char *errstr, *redostr, *keptstr;
                                if (!(keep_partial && partialptr) && !inplace)
@@ -687,10 +723,11 @@ int recv_files(int f_in, char *local_name)
                                        "%s: %s failed verification -- update %s%s.\n",
                                        errstr, fname, keptstr, redostr);
                        }
-                       if (!phase || incremental) {
+                       if (!redoing) {
                                send_msg_int(MSG_REDO, ndx);
                                file->flags |= FLAG_FILE_SENT;
-                       }
+                       } else if (inc_recurse)
+                               send_msg_int(MSG_NO_SEND, ndx);
                }
        }
        if (make_backups < 0)