More tweaks for Actions.
[rsync.git] / sender.c
index ba1d6ffa571ba6c453045bc6b42fb493661a6d7c..3d4f052e9bdbeaf7e41a39315907bddcbe69ed15 100644 (file)
--- a/sender.c
+++ b/sender.c
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 1996 Andrew Tridgell
  * Copyright (C) 1996 Paul Mackerras
- * Copyright (C) 2003-2008 Wayne Davison
+ * Copyright (C) 2003-2022 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
  */
 
 #include "rsync.h"
+#include "inums.h"
 
-extern int dry_run;
 extern int do_xfers;
 extern int am_server;
 extern int am_daemon;
+extern int local_server;
 extern int inc_recurse;
 extern int log_before_transfer;
 extern int stdout_format_has_i;
 extern int logfile_format_has_i;
+extern int want_xattr_optim;
 extern int csum_length;
 extern int append_mode;
+extern int copy_links;
 extern int io_error;
+extern int flist_eof;
+extern int whole_file;
 extern int allowed_lull;
+extern int copy_devices;
 extern int preserve_xattrs;
 extern int protocol_version;
 extern int remove_source_files;
 extern int updating_basis_file;
 extern int make_backups;
 extern int inplace;
+extern int inplace_partial;
 extern int batch_fd;
 extern int write_batch;
+extern int file_old_total;
+extern BOOL want_progress_now;
 extern struct stats stats;
 extern struct file_list *cur_flist, *first_flist, *dir_flist;
+extern char num_dev_ino_buf[4 + 8 + 8];
+
+BOOL extra_flist_sending_enabled;
 
 /**
  * @file
@@ -57,13 +69,10 @@ extern struct file_list *cur_flist, *first_flist, *dir_flist;
  **/
 static struct sum_struct *receive_sums(int f)
 {
-       struct sum_struct *s;
-       int32 i;
-       int lull_mod = allowed_lull * 5;
+       struct sum_struct *s = new(struct sum_struct);
+       int lull_mod = protocol_version >= 31 ? 0 : allowed_lull * 5;
        OFF_T offset = 0;
-
-       if (!(s = new(struct sum_struct)))
-               out_of_memory("receive_sums");
+       int32 i;
 
        read_sum_head(f, s);
 
@@ -71,7 +80,7 @@ static struct sum_struct *receive_sums(int f)
 
        if (DEBUG_GTE(DELTASUM, 3)) {
                rprintf(FINFO, "count=%s n=%ld rem=%ld\n",
-                       big_num(s->count, 0), (long)s->blength, (long)s->remainder);
+                       big_num(s->count), (long)s->blength, (long)s->remainder);
        }
 
        if (append_mode > 0) {
@@ -84,8 +93,7 @@ static struct sum_struct *receive_sums(int f)
        if (s->count == 0)
                return(s);
 
-       if (!(s->sums = new_array(struct sum_buf, s->count)))
-               out_of_memory("receive_sums");
+       s->sums = new_array(struct sum_buf, s->count);
 
        for (i = 0; i < s->count; i++) {
                s->sums[i].sum1 = read_int(f);
@@ -100,13 +108,13 @@ static struct sum_struct *receive_sums(int f)
                        s->sums[i].len = s->blength;
                offset += s->sums[i].len;
 
-               if (allowed_lull && !(i % lull_mod))
-                       maybe_send_keepalive();
+               if (lull_mod && !(i % lull_mod))
+                       maybe_send_keepalive(time(NULL), True);
 
                if (DEBUG_GTE(DELTASUM, 3)) {
                        rprintf(FINFO,
                                "chunk[%d] len=%d offset=%s sum1=%08x\n",
-                               i, s->sums[i].len, big_num(s->sums[i].offset, 0),
+                               i, s->sums[i].len, big_num(s->sums[i].offset),
                                s->sums[i].sum1);
                }
        }
@@ -119,8 +127,10 @@ static struct sum_struct *receive_sums(int f)
 void successful_send(int ndx)
 {
        char fname[MAXPATHLEN];
+       char *failed_op;
        struct file_struct *file;
        struct file_list *flist;
+       STRUCT_STAT st;
 
        if (!remove_source_files)
                return;
@@ -131,11 +141,38 @@ void successful_send(int ndx)
                return;
        f_name(file, fname);
 
-       if (do_unlink(fname) == 0) {
+       if ((copy_links ? do_stat(fname, &st) : do_lstat(fname, &st)) < 0) {
+               failed_op = "re-lstat";
+               goto failed;
+       }
+
+       if (local_server
+        && (int64)st.st_dev == IVAL64(num_dev_ino_buf, 4)
+        && (int64)st.st_ino == IVAL64(num_dev_ino_buf, 4 + 8)) {
+               rprintf(FERROR_XFER, "ERROR: Skipping sender remove of destination file: %s\n", fname);
+               return;
+       }
+
+       if (st.st_size != F_LENGTH(file) || st.st_mtime != file->modtime
+#ifdef ST_MTIME_NSEC
+        || (NSEC_BUMP(file) && (uint32)st.ST_MTIME_NSEC != F_MOD_NSEC(file))
+#endif
+       ) {
+               rprintf(FERROR_XFER, "ERROR: Skipping sender remove for changed file: %s\n", fname);
+               return;
+       }
+
+       if (do_unlink(fname) < 0) {
+               failed_op = "remove";
+         failed:
+               if (errno == ENOENT)
+                       rprintf(FINFO, "sender file already removed: %s\n", fname);
+               else
+                       rsyserr(FERROR_XFER, errno, "sender failed to %s %s", failed_op, fname);
+       } else {
                if (INFO_GTE(REMOVE, 1))
                        rprintf(FINFO, "sender removed %s\n", fname);
-       } else
-               rsyserr(FERROR, errno, "sender failed to remove %s", fname);
+       }
 }
 
 static void write_ndx_and_attrs(int f_out, int ndx, int iflags,
@@ -151,7 +188,8 @@ static void write_ndx_and_attrs(int f_out, int ndx, int iflags,
        if (iflags & ITEM_XNAME_FOLLOWS)
                write_vstring(f_out, buf, len);
 #ifdef SUPPORT_XATTRS
-       if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
+       if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && do_xfers
+        && !(want_xattr_optim && BITS_SET(iflags, ITEM_XNAME_FOLLOWS|ITEM_LOCAL_CHANGE)))
                send_xattr_request(fname, file, f_out);
 #endif
 }
@@ -168,30 +206,43 @@ void send_files(int f_in, int f_out)
        int iflags, xlen;
        struct file_struct *file;
        int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1;
-       struct stats initial_stats;
        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 save_io_error = io_error;
        int ndx, j;
 
        if (DEBUG_GTE(SEND, 1))
                rprintf(FINFO, "send_files starting\n");
 
+       if (whole_file < 0)
+               whole_file = 0;
+
+       progress_init();
+
        while (1) {
-               if (inc_recurse)
-                       send_extra_file_list(f_out, FILECNT_LOOKAHEAD);
+               if (inc_recurse) {
+                       send_extra_file_list(f_out, MIN_FILECNT_LOOKAHEAD);
+                       extra_flist_sending_enabled = !flist_eof;
+               }
 
                /* This call also sets cur_flist. */
-               ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
+               ndx = read_ndx_and_attrs(f_in, f_out, &iflags, &fnamecmp_type,
                                         xname, &xlen);
+               extra_flist_sending_enabled = False;
+
                if (ndx == NDX_DONE) {
-                       if (!am_server && INFO_GTE(PROGRESS, 2) && cur_flist) {
+                       if (!am_server && cur_flist) {
                                set_current_file_index(NULL, 0);
-                               end_progress(0);
+                               if (INFO_GTE(PROGRESS, 2))
+                                       end_progress(0);
                        }
                        if (inc_recurse && first_flist) {
+                               file_old_total -= first_flist->used;
                                flist_free(first_flist);
                                if (first_flist) {
+                                       if (first_flist == cur_flist)
+                                               file_old_total = cur_flist->used;
                                        write_ndx(f_out, NDX_DONE);
                                        continue;
                                }
@@ -205,7 +256,7 @@ void send_files(int f_in, int f_out)
                }
 
                if (inc_recurse)
-                       send_extra_file_list(f_out, FILECNT_LOOKAHEAD);
+                       send_extra_file_list(f_out, MIN_FILECNT_LOOKAHEAD);
 
                if (ndx - cur_flist->ndx_start >= 0)
                        file = cur_flist->files[ndx - cur_flist->ndx_start];
@@ -225,14 +276,29 @@ void send_files(int f_in, int f_out)
                        rprintf(FINFO, "send_files(%d, %s%s%s)\n", ndx, path,slash,fname);
 
 #ifdef SUPPORT_XATTRS
-               if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
+               if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && do_xfers
+                && !(want_xattr_optim && BITS_SET(iflags, ITEM_XNAME_FOLLOWS|ITEM_LOCAL_CHANGE)))
                        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);
+                       write_ndx_and_attrs(f_out, ndx, iflags, fname, file, fnamecmp_type, xname, xlen);
+                       if (iflags & ITEM_IS_NEW) {
+                               stats.created_files++;
+                               if (S_ISREG(file->mode)) {
+                                       /* Nothing further to count. */
+                               } else if (S_ISDIR(file->mode))
+                                       stats.created_dirs++;
+#ifdef SUPPORT_LINKS
+                               else if (S_ISLNK(file->mode))
+                                       stats.created_symlinks++;
+#endif
+                               else if (IS_DEVICE(file->mode))
+                                       stats.created_devices++;
+                               else
+                                       stats.created_specials++;
+                       }
                        continue;
                }
                if (phase == 2) {
@@ -256,25 +322,26 @@ void send_files(int f_in, int f_out)
                                append_mode = -append_mode;
                                csum_length = SHORT_SUM_LENGTH;
                        }
+                       if (iflags & ITEM_IS_NEW)
+                               stats.created_files++;
                }
 
-               updating_basis_file = inplace && (protocol_version >= 29
-                       ? fnamecmp_type == FNAMECMP_FNAME : make_backups <= 0);
+               updating_basis_file = (inplace_partial && fnamecmp_type == FNAMECMP_PARTIAL_DIR)
+                   || (inplace && (protocol_version >= 29 ? fnamecmp_type == FNAMECMP_FNAME : make_backups <= 0));
 
-               if (!am_server && INFO_GTE(PROGRESS, 1))
+               if (!am_server)
                        set_current_file_index(file, ndx);
-               stats.num_transferred_files++;
+               stats.xferred_files++;
                stats.total_transferred_size += F_LENGTH(file);
 
+               remember_initial_stats();
+
                if (!do_xfers) { /* log the transfer */
-                       log_item(FCLIENT, file, &stats, iflags, NULL);
-                       write_ndx_and_attrs(f_out, ndx, iflags, fname, file,
-                                           fnamecmp_type, xname, xlen);
+                       log_item(FCLIENT, file, iflags, NULL);
+                       write_ndx_and_attrs(f_out, ndx, iflags, fname, file, fnamecmp_type, xname, xlen);
                        continue;
                }
 
-               initial_stats = stats;
-
                if (!(s = receive_sums(f_in))) {
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR_XFER, "receive_sums failed\n");
@@ -284,9 +351,7 @@ void send_files(int f_in, int f_out)
                fd = do_open(fname, O_RDONLY, 0);
                if (fd == -1) {
                        if (errno == ENOENT) {
-                               enum logcode c = am_daemon
-                                   && protocol_version < 28 ? FERROR
-                                                            : FWARNING;
+                               enum logcode c = am_daemon && protocol_version < 28 ? FERROR : FWARNING;
                                io_error |= IOERR_VANISHED;
                                rprintf(c, "file has vanished: %s\n",
                                        full_fname(fname));
@@ -308,7 +373,26 @@ void send_files(int f_in, int f_out)
                        rsyserr(FERROR_XFER, errno, "fstat failed");
                        free_sums(s);
                        close(fd);
-                       exit_cleanup(RERR_PROTOCOL);
+                       exit_cleanup(RERR_FILEIO);
+               }
+
+               if (IS_DEVICE(st.st_mode)) {
+                       if (!copy_devices) {
+                               rprintf(FERROR, "attempt to copy device contents without --copy-devices\n");
+                               exit_cleanup(RERR_PROTOCOL);
+                       }
+                       if (st.st_size == 0)
+                               st.st_size = get_device_size(fd, fname);
+               }
+
+               if (append_mode > 0 && st.st_size < F_LENGTH(file)) {
+                       rprintf(FWARNING, "skipped diminished file: %s\n",
+                               full_fname(fname));
+                       free_sums(s);
+                       close(fd);
+                       if (protocol_version >= 30)
+                               send_msg_int(MSG_NO_SEND, ndx);
+                       continue;
                }
 
                if (st.st_size) {
@@ -319,18 +403,17 @@ void send_files(int f_in, int f_out)
 
                if (DEBUG_GTE(DELTASUM, 2)) {
                        rprintf(FINFO, "send_files mapped %s%s%s of size %s\n",
-                               path,slash,fname, big_num(st.st_size, 0));
+                               path,slash,fname, big_num(st.st_size));
                }
 
-               write_ndx_and_attrs(f_out, ndx, iflags, fname, file,
-                                   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 (DEBUG_GTE(DELTASUM, 2))
                        rprintf(FINFO, "calling match_sums %s%s%s\n", path,slash,fname);
 
                if (log_before_transfer)
-                       log_item(FCLIENT, file, &initial_stats, iflags, NULL);
+                       log_item(FCLIENT, file, iflags, NULL);
                else if (!am_server && INFO_GTE(NAME, 1) && INFO_EQ(PROGRESS, 1))
                        rprintf(FCLIENT, "%s\n", fname);
 
@@ -339,8 +422,10 @@ void send_files(int f_in, int f_out)
                match_sums(f_xfer, s, mbuf, st.st_size);
                if (INFO_GTE(PROGRESS, 1))
                        end_progress(st.st_size);
+               else if (want_progress_now)
+                       instant_progress(fname);
 
-               log_item(log_code, file, &initial_stats, iflags, NULL);
+               log_item(log_code, file, iflags, NULL);
 
                if (mbuf) {
                        j = unmap_file(mbuf);
@@ -364,6 +449,9 @@ void send_files(int f_in, int f_out)
        if (make_backups < 0)
                make_backups = -make_backups;
 
+       if (io_error != save_io_error && protocol_version >= 30)
+               send_msg_int(MSG_IO_ERROR, io_error);
+
        if (DEBUG_GTE(SEND, 1))
                rprintf(FINFO, "send files finished\n");