-/*
+/*
Copyright (C) Andrew Tridgell 1996
Copyright (C) Paul Mackerras 1996
-
+
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.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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., 675 Mass Ave, Cambridge, MA 02139, USA.
#include "rsync.h"
extern int verbose;
-extern int remote_version;
+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;
-/*
- receive the checksums for a buffer
- */
+/**
+ * @file
+ *
+ * The sender gets checksums from the generator, calculates deltas,
+ * and transmits them to the receiver. The sender process runs on the
+ * machine holding the source files.
+ **/
+
+/**
+ * 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->count = read_int(f);
- s->n = read_int(f);
- s->remainder = read_int(f);
s->sums = NULL;
- if (verbose > 3)
- rprintf(FINFO,"count=%d n=%d rem=%d\n",
- s->count,s->n,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)
+ 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<s->count;i++) {
+ for (i = 0; i < s->count; i++) {
s->sums[i].sum1 = read_int(f);
- read_buf(f,s->sums[i].sum2,csum_length);
+ 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 == s->count-1 && s->remainder != 0) {
+ if (i == s->count-1 && s->remainder != 0)
s->sums[i].len = s->remainder;
- } else {
- s->sums[i].len = s->n;
- }
+ 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;
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;
-void send_files(struct file_list *flist,int f_out,int f_in)
-{
- int fd;
+ 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;
+ 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 */
- int negative_one; /* 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");
+ 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 && remote_version >= 13) {
- 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);
+ 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);
+
+ if (verbose > 2)
+ rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
+
+ 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);
}
- file = flist->files[i];
+ updating_basis_file = inplace && (protocol_version >= 29
+ ? fnamecmp_type == FNAMECMP_FNAME : !make_backups);
+ stats.current_file_index = i;
stats.num_transferred_files++;
stats.total_transferred_size += file->length;
- 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;
- }
- strlcat(fname,f_name(file),MAXPATHLEN);
-
- if (verbose > 2)
- rprintf(FINFO,"send_files(%d,%s)\n",i,fname);
-
- if (dry_run) {
- if (!am_server) {
- log_transfer(file, fname+offset);
- }
- write_int(f_out,i);
+ 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 (write_batch) /* dw */
- write_batch_csum_info(&i,flist->count,s);
- if (!s) {
- io_error = 1;
- rprintf(FERROR,"receive_sums failed\n");
+ if (!(s = receive_sums(f_in))) {
+ io_error |= IOERR_GENERAL;
+ rprintf(FERROR, "receive_sums failed\n");
return;
}
-
- 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));
+ 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 {
+ io_error |= IOERR_GENERAL;
+ rsyserr(FERROR, errno,
+ "send_files failed to open %s",
+ full_fname(fname));
+ }
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));
+ if (do_fstat(fd, &st) != 0) {
+ io_error |= IOERR_GENERAL;
+ rsyserr(FERROR, errno, "fstat failed");
free_sums(s);
close(fd);
return;
}
-
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
- } else {
- buf = NULL;
- }
-
- if (verbose > 2)
- rprintf(FINFO,"send_files mapped %s of size %.0f\n",
- fname,(double)st.st_size);
- }
- if (!read_batch) { /* dw */
- write_int(f_out,i);
-
- 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_int(f_out,s->count);
- write_int(f_out,s->n);
- write_int(f_out,s->remainder);
+ if (verbose > 2) {
+ rprintf(FINFO, "send_files mapped %s of size %.0f\n",
+ safe_fname(fname), (double)st.st_size);
}
-
- if (verbose > 2)
- if (!read_batch)
- rprintf(FINFO,"calling match_sums %s\n",fname);
-
- if (!am_server) {
- log_transfer(file, fname+offset);
+
+ write_ndx_and_attrs(f_xfer, i, iflags, fnamecmp_type,
+ xname, xlen);
+ write_sum_head(f_xfer, s);
+
+ 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_int(f_out,s->count);
- write_int(f_out,s->n);
- write_int(f_out,s->remainder);
- 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");
- continue;
- }
- } else {
- match_sums(f_out,s,buf,st.st_size);
- log_send(file, &initial_stats);
- }
-
- if (!read_batch) { /* dw */
- if (buf) unmap_file(buf);
- close(fd);
+ match_sums(f_xfer, s, mbuf, st.st_size);
+ if (do_progress)
+ end_progress(st.st_size);
+
+ 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");
+ rprintf(FINFO, "send files finished\n");
match_report();
- write_int(f_out,-1);
- if (write_batch || read_batch) { /* dw */
- close_batch_csums_file();
- close_batch_delta_file();
- }
-
+ write_int(f_out, -1);
}
-
-
-
-
-
git.samba.org / rsync.git / blobdiff