Tweaking the license text a bit more.
[rsync/rsync.git] / sender.c
index 4afdf5f..e9c48da 100644 (file)
--- a/sender.c
+++ b/sender.c
@@ -3,11 +3,11 @@
  *
  * Copyright (C) 1996 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
+ * the Free Software Foundation; either version 3 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * 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 am_daemon;
+extern int inc_recurse;
 extern int log_before_transfer;
 extern int stdout_format_has_i;
 extern int logfile_format_has_i;
@@ -33,8 +34,9 @@ extern int csum_length;
 extern int append_mode;
 extern int io_error;
 extern int allowed_lull;
+extern int preserve_xattrs;
 extern int protocol_version;
-extern int remove_sender_files;
+extern int remove_source_files;
 extern int updating_basis_file;
 extern int make_backups;
 extern int do_progress;
@@ -42,9 +44,7 @@ extern int inplace;
 extern int batch_fd;
 extern int write_batch;
 extern struct stats stats;
-extern struct file_list *the_file_list;
-extern char *stdout_format;
-
+extern struct file_list *cur_flist, *first_flist, *dir_flist;
 
 /**
  * @file
@@ -76,7 +76,7 @@ static struct sum_struct *receive_sums(int f)
                        (double)s->count, (long)s->blength, (long)s->remainder);
        }
 
-       if (append_mode) {
+       if (append_mode > 0) {
                s->flength = (OFF_T)s->count * s->blength;
                if (s->remainder)
                        s->flength -= s->blength - s->remainder;
@@ -122,26 +122,35 @@ void successful_send(int ndx)
 {
        char fname[MAXPATHLEN];
        struct file_struct *file;
-       unsigned int offset;
+       struct file_list *flist;
 
-       if (ndx < 0 || ndx >= the_file_list->count)
+       if (!remove_source_files)
                return;
 
-       file = the_file_list->files[ndx];
-       if (file->dir.root) {
-               offset = stringjoin(fname, sizeof fname,
-                                   file->dir.root, "/", NULL);
+       if (!(flist = flist_for_ndx(ndx))) {
+               rprintf(FERROR,
+                       "INTERNAL ERROR: unable to find flist for item %d\n",
+                       ndx);
+               return;
+       }
+
+       file = flist->files[ndx - flist->ndx_start];
+       if (!push_pathname(F_PATHNAME(file), -1))
+               return;
+       f_name(file, fname);
+
+       if (do_unlink(fname) == 0) {
+               if (verbose > 1)
+                       rprintf(FINFO, "sender removed %s\n", fname);
        } else
-               offset = 0;
-       f_name(file, fname + offset);
-       if (remove_sender_files && do_unlink(fname) == 0 && verbose > 1)
-               rprintf(FINFO, "sender removed %s\n", fname + offset);
+               rsyserr(FERROR, errno, "sender failed to remove %s", fname);
 }
 
 static void write_ndx_and_attrs(int f_out, int ndx, int iflags,
+                               const char *fname, struct file_struct *file,
                                uchar fnamecmp_type, char *buf, int len)
 {
-       write_int(f_out, ndx);
+       write_ndx(f_out, ndx);
        if (protocol_version < 29)
                return;
        write_shortint(f_out, iflags);
@@ -149,118 +158,85 @@ static void write_ndx_and_attrs(int f_out, int ndx, int iflags,
                write_byte(f_out, fnamecmp_type);
        if (iflags & ITEM_XNAME_FOLLOWS)
                write_vstring(f_out, buf, len);
+#ifdef SUPPORT_XATTRS
+       if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
+               send_xattr_request(fname, file, f_out);
+#endif
 }
 
-/* This is also used by receive.c with f_out = -1. */
-int read_item_attrs(int f_in, int f_out, int ndx, uchar *type_ptr,
-                   char *buf, int *len_ptr)
-{
-       int len;
-       uchar fnamecmp_type = FNAMECMP_FNAME;
-       int iflags = protocol_version >= 29 ? read_shortint(f_in)
-                  : ITEM_TRANSFER | ITEM_MISSING_DATA;
-
-       /* Handle the new keep-alive (no-op) packet. */
-       if (ndx == the_file_list->count && iflags == ITEM_IS_NEW)
-               ;
-       else if (ndx < 0 || ndx >= the_file_list->count) {
-               rprintf(FERROR, "Invalid file index: %d (count=%d) [%s]\n",
-                       ndx, the_file_list->count, who_am_i());
-               exit_cleanup(RERR_PROTOCOL);
-       } else if (iflags == ITEM_IS_NEW) {
-               rprintf(FERROR, "Invalid itemized flag word: %x [%s]\n",
-                       iflags, who_am_i());
-               exit_cleanup(RERR_PROTOCOL);
-       }
-
-       if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
-               fnamecmp_type = read_byte(f_in);
-       *type_ptr = fnamecmp_type;
-
-       if (iflags & ITEM_XNAME_FOLLOWS) {
-               if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
-                       exit_cleanup(RERR_PROTOCOL);
-       } else {
-               *buf = '\0';
-               len = -1;
-       }
-       *len_ptr = len;
-
-       if (iflags & ITEM_TRANSFER) {
-               if (!S_ISREG(the_file_list->files[ndx]->mode)) {
-                       rprintf(FERROR,
-                               "received request to transfer non-regular file: %d [%s]\n",
-                               ndx, who_am_i());
-                       exit_cleanup(RERR_PROTOCOL);
-               }
-       } else if (f_out >= 0) {
-               write_ndx_and_attrs(f_out, ndx, iflags,
-                                   fnamecmp_type, buf, len);
-       }
-
-       return iflags;
-}
-
-void send_files(struct file_list *flist, int f_out, int f_in)
+void send_files(int f_in, int f_out)
 {
        int fd = -1;
        struct sum_struct *s;
        struct map_struct *mbuf = NULL;
        STRUCT_STAT st;
-       char *fname2, fname[MAXPATHLEN];
-       char xname[MAXPATHLEN];
+       char fname[MAXPATHLEN], xname[MAXPATHLEN];
+       const char *path, *slash;
        uchar fnamecmp_type;
        int iflags, xlen;
        struct file_struct *file;
        int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1;
        struct stats initial_stats;
-       int save_make_backups = make_backups;
        int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
        enum logcode log_code = log_before_transfer ? FLOG : FINFO;
        int f_xfer = write_batch < 0 ? batch_fd : f_out;
-       int i, j;
+       int ndx, j;
 
        if (verbose > 2)
                rprintf(FINFO, "send_files starting\n");
 
        while (1) {
-               unsigned int offset;
+               if (inc_recurse)
+                       send_extra_file_list(f_out, FILECNT_LOOKAHEAD);
 
-               i = read_int(f_in);
-               if (i == -1) {
+               /* This call also sets cur_flist. */
+               ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
+                                        xname, &xlen);
+               if (ndx == NDX_DONE) {
+                       if (inc_recurse && first_flist) {
+                               flist_free(first_flist);
+                               if (first_flist) {
+                                       write_ndx(f_out, NDX_DONE);
+                                       continue;
+                               }
+                       }
                        if (++phase > max_phase)
                                break;
-                       csum_length = SUM_LENGTH;
                        if (verbose > 2)
                                rprintf(FINFO, "send_files phase=%d\n", phase);
-                       write_int(f_out, -1);
-                       /* For inplace: redo phase turns off the backup
-                        * flag so that we do a regular inplace send. */
-                       make_backups = 0;
-                       append_mode = 0;
+                       write_ndx(f_out, NDX_DONE);
                        continue;
                }
 
-               iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type,
-                                        xname, &xlen);
-               if (iflags == ITEM_IS_NEW) /* no-op packet */
-                       continue;
+               if (inc_recurse)
+                       send_extra_file_list(f_out, FILECNT_LOOKAHEAD);
 
-               file = flist->files[i];
-               if (file->dir.root) {
-                       /* N.B. We're sure that this fits, so offset is OK. */
-                       offset = strlcpy(fname, file->dir.root, sizeof fname);
-                       if (!offset || fname[offset-1] != '/')
-                               fname[offset++] = '/';
-               } else
-                       offset = 0;
-               fname2 = f_name(file, fname + offset);
+               if (ndx - cur_flist->ndx_start >= 0)
+                       file = cur_flist->files[ndx - cur_flist->ndx_start];
+               else
+                       file = dir_flist->files[cur_flist->parent_ndx];
+               if (F_PATHNAME(file)) {
+                       path = F_PATHNAME(file);
+                       slash = "/";
+               } else {
+                       path = slash = "";
+               }
+               if (!push_pathname(F_PATHNAME(file), -1))
+                       continue;
+               f_name(file, fname);
 
                if (verbose > 2)
-                       rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
+                       rprintf(FINFO, "send_files(%d, %s%s%s)\n", ndx, path,slash,fname);
+
+#ifdef SUPPORT_XATTRS
+               if (preserve_xattrs && iflags & ITEM_REPORT_XATTR)
+                       recv_xattr_request(file, f_in);
+#endif
 
                if (!(iflags & ITEM_TRANSFER)) {
                        maybe_log_item(file, iflags, itemizing, xname);
+                       write_ndx_and_attrs(f_out, ndx, iflags, fname, file,
+                                           fnamecmp_type, xname, xlen);
                        continue;
                }
                if (phase == 2) {
@@ -270,17 +246,33 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                        exit_cleanup(RERR_PROTOCOL);
                }
 
+               if (file->flags & FLAG_FILE_SENT) {
+                       if (csum_length == SHORT_SUM_LENGTH) {
+                               /* For inplace: redo phase turns off the backup
+                                * flag so that we do a regular inplace send. */
+                               make_backups = -make_backups;
+                               append_mode = -append_mode;
+                               csum_length = SUM_LENGTH;
+                       }
+               } else {
+                       if (csum_length != SHORT_SUM_LENGTH) {
+                               make_backups = -make_backups;
+                               append_mode = -append_mode;
+                               csum_length = SHORT_SUM_LENGTH;
+                       }
+               }
+
                updating_basis_file = inplace && (protocol_version >= 29
-                       ? fnamecmp_type == FNAMECMP_FNAME : !make_backups);
+                       ? fnamecmp_type == FNAMECMP_FNAME : make_backups <= 0);
 
-               stats.current_file_index = i;
+               stats.current_file_index = ndx;
                stats.num_transferred_files++;
-               stats.total_transferred_size += file->length;
+               stats.total_transferred_size += F_LENGTH(file);
 
                if (!do_xfers) { /* log the transfer */
                        log_item(FCLIENT, file, &stats, iflags, NULL);
-                       write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type,
-                                           xname, xlen);
+                       write_ndx_and_attrs(f_out, ndx, iflags, fname, file,
+                                           fnamecmp_type, xname, xlen);
                        continue;
                }
 
@@ -289,7 +281,7 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                if (!(s = receive_sums(f_in))) {
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR, "receive_sums failed\n");
-                       return;
+                       exit_cleanup(RERR_PROTOCOL);
                }
 
                fd = do_open(fname, O_RDONLY, 0);
@@ -308,6 +300,8 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                                        full_fname(fname));
                        }
                        free_sums(s);
+                       if (protocol_version >= 30)
+                               send_msg_int(MSG_NO_SEND, ndx);
                        continue;
                }
 
@@ -317,7 +311,7 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                        rsyserr(FERROR, errno, "fstat failed");
                        free_sums(s);
                        close(fd);
-                       return;
+                       exit_cleanup(RERR_PROTOCOL);
                }
 
                if (st.st_size) {
@@ -327,21 +321,21 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                        mbuf = NULL;
 
                if (verbose > 2) {
-                       rprintf(FINFO, "send_files mapped %s of size %.0f\n",
-                               fname, (double)st.st_size);
+                       rprintf(FINFO, "send_files mapped %s%s%s of size %.0f\n",
+                               path,slash,fname, (double)st.st_size);
                }
 
-               write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type,
-                                   xname, xlen);
+               write_ndx_and_attrs(f_out, ndx, iflags, fname, file,
+                                   fnamecmp_type, xname, xlen);
                write_sum_head(f_xfer, s);
 
                if (verbose > 2)
-                       rprintf(FINFO, "calling match_sums %s\n", fname);
+                       rprintf(FINFO, "calling match_sums %s%s%s\n", path,slash,fname);
 
                if (log_before_transfer)
                        log_item(FCLIENT, file, &initial_stats, iflags, NULL);
                else if (!am_server && verbose && do_progress)
-                       rprintf(FCLIENT, "%s\n", fname2);
+                       rprintf(FCLIENT, "%s\n", fname);
 
                set_compression(fname);
 
@@ -365,17 +359,18 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                free_sums(s);
 
                if (verbose > 2)
-                       rprintf(FINFO, "sender finished %s\n", fname);
+                       rprintf(FINFO, "sender finished %s%s%s\n", path,slash,fname);
 
                /* Flag that we actually sent this entry. */
-               file->flags |= FLAG_SENT;
+               file->flags |= FLAG_FILE_SENT;
        }
-       make_backups = save_make_backups;
+       if (make_backups < 0)
+               make_backups = -make_backups;
 
        if (verbose > 2)
                rprintf(FINFO, "send files finished\n");
 
        match_report();
 
-       write_int(f_out, -1);
+       write_ndx(f_out, NDX_DONE);
 }