Got rid of RERR_LOG_FAILURE.
[rsync.git] / sender.c
index f0dc1a18a05f04fbded4f904447694345c21d0b8..5c7b9c541e6f816e0d9453662de62c34cbd19a2d 100644 (file)
--- a/sender.c
+++ b/sender.c
 #include "rsync.h"
 
 extern int verbose;
+extern int do_xfers;
+extern int am_server;
+extern int am_daemon;
+extern int log_before_transfer;
+extern int log_format_has_i;
+extern int daemon_log_format_has_i;
 extern int csum_length;
-extern struct stats stats;
 extern int io_error;
-extern int dry_run;
-extern int am_server;
+extern int protocol_version;
+extern int remove_sent_files;
+extern int updating_basis_file;
+extern int make_backups;
+extern int do_progress;
+extern int inplace;
+extern int batch_fd;
+extern int write_batch;
+extern struct stats stats;
+extern struct file_list *the_file_list;
+extern char *log_format;
 
 
 /**
@@ -35,64 +49,52 @@ extern int am_server;
  * machine holding the source files.
  **/
 
-
-void read_sum_head(int f, struct sum_struct *sum)
-{
-       extern int protocol_version;
-
-       sum->count = read_int(f);
-       sum->blength = read_int(f);
-       if (protocol_version < 27)
-               sum->s2length = csum_length;
-       else
-               sum->s2length = read_int(f);
-       sum->remainder = read_int(f);
-}
-
 /**
  * Receive the checksums for a buffer
  **/
 static struct sum_struct *receive_sums(int f)
 {
        struct sum_struct *s;
-       int i;
+       int32 i;
        OFF_T offset = 0;
 
-       s = (struct sum_struct *)malloc(sizeof(*s));
-       if (!s) out_of_memory("receive_sums");
+       if (!(s = new(struct sum_struct)))
+               out_of_memory("receive_sums");
 
        read_sum_head(f, s);
 
        s->sums = NULL;
 
-       if (verbose > 3)
-               rprintf(FINFO, "count=%ld n=%ld rem=%ld\n",
-                       (long) s->count, (long) s->blength,
-                       (long) s->remainder);
+       if (verbose > 3) {
+               rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n",
+                       (double)s->count, (long)s->blength, (long)s->remainder);
+       }
 
        if (s->count == 0)
                return(s);
 
-       s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
-       if (!s->sums) out_of_memory("receive_sums");
+       if (!(s->sums = new_array(struct sum_buf, s->count)))
+               out_of_memory("receive_sums");
 
-       for (i = 0; i < (int) s->count; i++) {
+       for (i = 0; i < s->count; i++) {
                s->sums[i].sum1 = read_int(f);
                read_buf(f, s->sums[i].sum2, s->s2length);
 
                s->sums[i].offset = offset;
-               s->sums[i].i = i;
+               s->sums[i].flags = 0;
 
-               if (i == (int) s->count-1 && s->remainder != 0) {
+               if (i == s->count-1 && s->remainder != 0)
                        s->sums[i].len = s->remainder;
-               } else {
+               else
                        s->sums[i].len = s->blength;
-               }
                offset += s->sums[i].len;
 
-               if (verbose > 3)
-                       rprintf(FINFO, "chunk[%d] len=%d offset=%.0f sum1=%08x\n",
-                               i, s->sums[i].len, (double)s->sums[i].offset, s->sums[i].sum1);
+               if (verbose > 3) {
+                       rprintf(FINFO,
+                               "chunk[%d] len=%d offset=%.0f sum1=%08x\n",
+                               i, s->sums[i].len, (double)s->sums[i].offset,
+                               s->sums[i].sum1);
+               }
        }
 
        s->flength = offset;
@@ -100,192 +102,273 @@ static struct sum_struct *receive_sums(int f)
        return s;
 }
 
+void successful_send(int ndx)
+{
+       char fname[MAXPATHLEN];
+       struct file_struct *file;
+       unsigned int offset;
+
+       if (ndx < 0 || ndx >= the_file_list->count)
+               return;
+
+       file = the_file_list->files[ndx];
+       /* The generator might tell us about symlinks we didn't send. */
+       if (!(file->flags & FLAG_SENT) && !S_ISLNK(file->mode))
+               return;
+       if (file->dir.root) {
+               offset = stringjoin(fname, sizeof fname,
+                                   file->dir.root, "/", NULL);
+       } else
+               offset = 0;
+       f_name_to(file, fname + offset);
+       if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) {
+               rprintf(FINFO, "sender removed %s\n",
+                       safe_fname(fname + offset));
+       }
+}
+
+static void write_ndx_and_attrs(int f_out, int ndx, int iflags,
+                               uchar fnamecmp_type, char *buf, int len)
+{
+       write_int(f_out, ndx);
+       if (protocol_version < 29)
+               return;
+       write_shortint(f_out, iflags);
+       if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
+               write_byte(f_out, fnamecmp_type);
+       if (iflags & ITEM_XNAME_FOLLOWS)
+               write_vstring(f_out, buf, len);
+}
+
+/* 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;
+
+       /* Temporary handling of 2.6.4pre3 */
+       if (iflags & ITEM_DUMMY_BIT && iflags & (ITEM_LOCAL_CHANGE|ITEM_TRANSFER))
+               iflags &= ~ITEM_DUMMY_BIT;
+
+       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)
 {
        int fd = -1;
        struct sum_struct *s;
-       struct map_struct *buf = NULL;
+       struct map_struct *mbuf = NULL;
        STRUCT_STAT st;
-       char fname[MAXPATHLEN];
-       int i;
+       char *fname2, fname[MAXPATHLEN];
+       char xname[MAXPATHLEN];
+       uchar fnamecmp_type;
+       int iflags, xlen;
        struct file_struct *file;
-       int phase = 0;
-       extern struct stats stats;
+       int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1;
        struct stats initial_stats;
-       extern int write_batch;   /* dw */
-       extern int read_batch;    /* dw */
-       int checksums_match;   /* dw */
-       int buff_len;  /* dw */
-       char buff[CHUNK_SIZE];    /* dw */
-       int j;   /* dw */
-       int done;   /* dw */
+       int save_make_backups = make_backups;
+       int itemizing = am_daemon ? daemon_log_format_has_i
+                     : !am_server && log_format_has_i;
+       int f_xfer = write_batch < 0 ? batch_fd : f_out;
+       int i, j;
 
        if (verbose > 2)
                rprintf(FINFO, "send_files starting\n");
 
        while (1) {
-               int offset = 0;
+               unsigned int offset;
 
                i = read_int(f_in);
                if (i == -1) {
-                       if (phase == 0) {
-                               phase++;
-                               csum_length = SUM_LENGTH;
-                               write_int(f_out, -1);
-                               if (verbose > 2)
-                                       rprintf(FINFO, "send_files phase=%d\n", phase);
-                               continue;
-                       }
-                       break;
+                       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;
+                       continue;
                }
 
-               if (i < 0 || i >= flist->count) {
-                       rprintf(FERROR, "Invalid file index %d (count=%d)\n",
-                               i, flist->count);
-                       exit_cleanup(RERR_PROTOCOL);
-               }
+               iflags = read_item_attrs(f_in, f_xfer, i, &fnamecmp_type,
+                                        xname, &xlen);
+               if (iflags == ITEM_IS_NEW) /* no-op packet */
+                       continue;
 
                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_to(file, fname + offset);
 
-               stats.num_transferred_files++;
-               stats.total_transferred_size += file->length;
+               if (verbose > 2)
+                       rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
 
-               fname[0] = 0;
-               if (file->basedir) {
-                       strlcpy(fname, file->basedir, MAXPATHLEN);
-                       if (strlen(fname) == MAXPATHLEN-1) {
-                               io_error = 1;
-                               rprintf(FERROR, "send_files failed on long-named directory %s\n",
-                                       fname);
-                               return;
-                       }
-                       strlcat(fname, "/", MAXPATHLEN);
-                       offset = strlen(file->basedir)+1;
+               if (!(iflags & ITEM_TRANSFER)) {
+                       maybe_log_item(file, iflags, itemizing, xname);
+                       continue;
+               }
+               if (phase == 2) {
+                       rprintf(FERROR,
+                               "got transfer request in phase 2 [%s]\n",
+                               who_am_i());
+                       exit_cleanup(RERR_PROTOCOL);
                }
-               strlcat(fname, f_name(file), MAXPATHLEN);
 
-               if (verbose > 2)
-                       rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
+               updating_basis_file = inplace && (protocol_version >= 29
+                       ? fnamecmp_type == FNAMECMP_FNAME : !make_backups);
 
-               if (dry_run) {
-                       if (!am_server && verbose) {    /* log transfer */
-                               rprintf(FINFO, "%s\n", fname+offset);
-                       }
-                       write_int(f_out, i);
+               stats.current_file_index = i;
+               stats.num_transferred_files++;
+               stats.total_transferred_size += file->length;
+
+               if (!do_xfers) { /* log the transfer */
+                       if (!am_server && log_format)
+                               log_item(file, &stats, iflags, NULL);
+                       write_ndx_and_attrs(f_xfer, i, iflags, fnamecmp_type,
+                                           xname, xlen);
                        continue;
                }
 
                initial_stats = stats;
 
-               s = receive_sums(f_in);
-               if (!s) {
-                       io_error = 1;
+               if (!(s = receive_sums(f_in))) {
+                       io_error |= IOERR_GENERAL;
                        rprintf(FERROR, "receive_sums failed\n");
                        return;
                }
 
-               if (write_batch)
-                       write_batch_csum_info(&i, flist->count, s);
-
-               if (!read_batch) {
-                       fd = do_open(fname, O_RDONLY, 0);
-                       if (fd == -1) {
-                               io_error = 1;
-                               rprintf(FERROR, "send_files failed to open %s: %s\n",
-                                       fname, strerror(errno));
-                               free_sums(s);
-                               continue;
-                       }
-
-                       /* map the local file */
-                       if (do_fstat(fd, &st) != 0) {
-                               io_error = 1;
-                               rprintf(FERROR, "fstat failed : %s\n", strerror(errno));
-                               free_sums(s);
-                               close(fd);
-                               return;
-                       }
-
-                       if (st.st_size > 0) {
-                               buf = map_file(fd, st.st_size);
+               fd = do_open(fname, O_RDONLY, 0);
+               if (fd == -1) {
+                       if (errno == ENOENT) {
+                               enum logcode c = am_daemon
+                                   && protocol_version < 28 ? FERROR
+                                                            : FINFO;
+                               io_error |= IOERR_VANISHED;
+                               rprintf(c, "file has vanished: %s\n",
+                                       full_fname(fname));
                        } else {
-                               buf = NULL;
+                               io_error |= IOERR_GENERAL;
+                               rsyserr(FERROR, errno,
+                                       "send_files failed to open %s",
+                                       full_fname(fname));
                        }
+                       free_sums(s);
+                       continue;
+               }
 
-                       if (verbose > 2)
-                               rprintf(FINFO, "send_files mapped %s of size %.0f\n",
-                                       fname, (double)st.st_size);
-
-                       write_int(f_out, i);
+               /* map the local file */
+               if (do_fstat(fd, &st) != 0) {
+                       io_error |= IOERR_GENERAL;
+                       rsyserr(FERROR, errno, "fstat failed");
+                       free_sums(s);
+                       close(fd);
+                       return;
+               }
 
-                       if (write_batch)
-                               write_batch_delta_file((char *)&i, sizeof(i));
+               if (st.st_size) {
+                       int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE);
+                       mbuf = map_file(fd, st.st_size, read_size, s->blength);
+               } else
+                       mbuf = NULL;
 
-                       write_sum_head(f_out, s);
+               if (verbose > 2) {
+                       rprintf(FINFO, "send_files mapped %s of size %.0f\n",
+                               safe_fname(fname), (double)st.st_size);
                }
 
-               if (verbose > 2 && !read_batch)
-                       rprintf(FINFO, "calling match_sums %s\n", fname);
+               write_ndx_and_attrs(f_xfer, i, iflags, fnamecmp_type,
+                                   xname, xlen);
+               write_sum_head(f_xfer, s);
 
-               if (!am_server && verbose) {    /* log transfer */
-                       rprintf(FINFO, "%s\n", fname+offset);
+               if (verbose > 2) {
+                       rprintf(FINFO, "calling match_sums %s\n",
+                               safe_fname(fname));
                }
 
+               if (log_before_transfer)
+                       log_item(file, &initial_stats, iflags, NULL);
+               else if (!am_server && verbose && do_progress)
+                       rprintf(FINFO, "%s\n", safe_fname(fname2));
+
                set_compression(fname);
 
-               if (read_batch) { /* dw */
-                       /* read checksums originally computed on sender side */
-                       read_batch_csum_info(i, s, &checksums_match);
-                       if (checksums_match) {
-                               read_batch_delta_file( (char *) &j, sizeof(int) );
-                               if (j != i) {    /* if flist index entries don't match*/
-                                       rprintf(FINFO, "index mismatch in send_files\n");
-                                       rprintf(FINFO, "read index = %d flist ndx = %d\n", j, i);
-                                       close_batch_delta_file();
-                                       close_batch_csums_file();
-                                       exit_cleanup(1);
-                               } else {
-                                       write_int(f_out, j);
-                                       write_sum_head(f_out, s);
-                                       done = 0;
-                                       while (!done) {
-                                               read_batch_delta_file( (char *) &buff_len, sizeof(int) );
-                                               write_int(f_out, buff_len);
-                                               if (buff_len == 0) {
-                                                       done = 1;
-                                               } else {
-                                                       if (buff_len > 0) {
-                                                               read_batch_delta_file(buff, buff_len);
-                                                               write_buf(f_out, buff, buff_len);
-                                                       }
-                                               }
-                                       }  /* end while  */
-                                       read_batch_delta_file( buff, MD4_SUM_LENGTH);
-                                       write_buf(f_out, buff, MD4_SUM_LENGTH);
-
-                               }  /* j=i */
-                       } else {  /* not checksum match */
-                               rprintf (FINFO, "readbatch & checksums don't match\n");
-                               rprintf (FINFO, "filename=%s is being skipped\n", fname);
-                               continue;
-                       }
-               } else  {
-                       match_sums(f_out, s, buf, st.st_size);
-                       log_send(file, &initial_stats);
-               }
+               match_sums(f_xfer, s, mbuf, st.st_size);
+               if (do_progress)
+                       end_progress(st.st_size);
 
-               if (!read_batch) { /* dw */
-                       if (buf) unmap_file(buf);
-                       close(fd);
+               if (!log_before_transfer)
+                       log_item(file, &initial_stats, iflags, NULL);
+
+               if (mbuf) {
+                       j = unmap_file(mbuf);
+                       if (j) {
+                               io_error |= IOERR_GENERAL;
+                               rsyserr(FERROR, j,
+                                       "read errors mapping %s",
+                                       full_fname(fname));
+                       }
                }
+               close(fd);
 
                free_sums(s);
 
-               if (verbose > 2)
-                       rprintf(FINFO, "sender finished %s\n", fname);
+               if (verbose > 2) {
+                       rprintf(FINFO, "sender finished %s\n",
+                               safe_fname(fname));
+               }
+
+               /* Flag that we actually sent this entry. */
+               file->flags |= FLAG_SENT;
        }
+       make_backups = save_make_backups;
 
        if (verbose > 2)
                rprintf(FINFO, "send files finished\n");
@@ -293,14 +376,4 @@ void send_files(struct file_list *flist, int f_out, int f_in)
        match_report();
 
        write_int(f_out, -1);
-       if (write_batch || read_batch) { /* dw */
-               close_batch_csums_file();
-               close_batch_delta_file();
-       }
-
 }
-
-
-
-
-