-/*
+/*
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 csum_length;
extern struct stats stats;
extern int io_error;
extern int dry_run;
extern int am_server;
+extern int am_daemon;
+extern int protocol_version;
+
+
+/**
+ * @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.
+ **/
+void read_sum_head(int f, struct sum_struct *sum)
+{
+ sum->count = read_int(f);
+ sum->blength = read_int(f);
+ if (protocol_version < 27) {
+ sum->s2length = csum_length;
+ } else {
+ sum->s2length = read_int(f);
+ if (sum->s2length > MD4_SUM_LENGTH) {
+ rprintf(FERROR, "Invalid checksum length %ld\n",
+ (long)sum->s2length);
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ }
+ sum->remainder = read_int(f);
+}
-
-/*
- receive the checksums for a buffer
- */
+/**
+ * Receive the checksums for a buffer
+ **/
static struct sum_struct *receive_sums(int f)
{
struct sum_struct *s;
int i;
OFF_T offset = 0;
- s = (struct sum_struct *)malloc(sizeof(*s));
+ s = new(struct sum_struct);
if (!s) out_of_memory("receive_sums");
- s->count = read_int(f);
- s->n = read_int(f);
- s->remainder = read_int(f);
+ read_sum_head(f, s);
+
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=%ld n=%u rem=%u\n",
+ (long)s->count, s->blength, s->remainder);
+ }
- if (s->count == 0)
+ if (s->count == 0)
return(s);
- s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
+ s->sums = new_array(struct sum_buf, s->count);
if (!s->sums) out_of_memory("receive_sums");
- for (i=0;i<s->count;i++) {
+ for (i = 0; i < (int) 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;
- if (i == s->count-1 && s->remainder != 0) {
+ if (i == (int) s->count-1 && s->remainder != 0) {
s->sums[i].len = s->remainder;
} else {
- s->sums[i].len = s->n;
+ s->sums[i].len = s->blength;
}
offset += s->sums[i].len;
if (verbose > 3)
- rprintf(FINFO,"chunk[%d] len=%d offset=%d sum1=%08x\n",
- i,s->sums[i].len,(int)s->sums[i].offset,s->sums[i].sum1);
+ 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;
-void send_files(struct file_list *flist,int f_out,int f_in)
-{
- int fd;
+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];
+ char fname[MAXPATHLEN];
int i;
struct file_struct *file;
int phase = 0;
+ extern struct stats stats;
+ struct stats initial_stats;
+ extern int write_batch;
+ extern int read_batch;
+ int checksums_match;
+ int buff_len;
+ char buff[CHUNK_SIZE];
+ int j;
+ int done;
if (verbose > 2)
- rprintf(FINFO,"send_files starting\n");
-
- setup_readbuffer(f_in);
+ 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) {
+ if (phase == 0) {
phase++;
csum_length = SUM_LENGTH;
- write_int(f_out,-1);
+ write_int(f_out, -1);
if (verbose > 2)
- rprintf(FINFO,"send_files phase=%d\n",phase);
+ rprintf(FINFO, "send_files phase=%d\n", phase);
continue;
}
break;
}
if (i < 0 || i >= flist->count) {
- rprintf(FERROR,"Invalid file index %d (count=%d)\n",
+ rprintf(FERROR, "Invalid file index %d (count=%d)\n",
i, flist->count);
- exit_cleanup(1);
+ exit_cleanup(RERR_PROTOCOL);
}
file = flist->files[i];
+ 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-1);
- if (strlen(fname) == MAXPATHLEN-1) {
- io_error = 1;
- rprintf(FERROR, "send_files failed on long-named directory %s\n",
- fname);
- return;
+ /* N.B. We're sure that this fits, so offset is OK. */
+ offset = strlcpy(fname, file->basedir, sizeof fname);
+ if (!offset || fname[offset-1] != '/')
+ fname[offset++] = '/';
+ } else
+ offset = 0;
+ f_name_to(file, fname + offset);
+
+ if (verbose > 2)
+ rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
+
+ if (dry_run) {
+ if (!am_server && verbose) {
+ rprintf(FINFO, "%s\n", fname+offset);
}
- strlcat(fname,"/",MAXPATHLEN-1);
- offset = strlen(file->basedir)+1;
- }
- strlcat(fname,f_name(file),MAXPATHLEN-strlen(fname));
-
- if (verbose > 2)
- rprintf(FINFO,"send_files(%d,%s)\n",i,fname);
-
- if (dry_run) {
- if (!am_server && verbose)
- rprintf(FINFO,"%s\n",fname);
- write_int(f_out,i);
+ write_int(f_out, i);
continue;
}
+ initial_stats = stats;
+
s = receive_sums(f_in);
if (!s) {
- io_error = 1;
- rprintf(FERROR,"receive_sums failed\n");
+ io_error |= IOERR_GENERAL;
+ rprintf(FERROR, "receive_sums failed\n");
return;
}
-
- fd = open(fname,O_RDONLY);
- if (fd == -1) {
- io_error = 1;
- rprintf(FERROR,"send_files failed to open %s: %s\n",
- fname,strerror(errno));
- free_sums(s);
- continue;
+
+ if (write_batch)
+ write_batch_csum_info(&i, s);
+
+ if (!read_batch) {
+ 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 {
+ 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 |= IOERR_GENERAL;
+ rsyserr(FERROR, errno, "fstat failed");
+ free_sums(s);
+ close(fd);
+ return;
+ }
+
+ mbuf = st.st_size ? map_file(fd, st.st_size) : NULL;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "send_files mapped %s of size %.0f\n",
+ fname, (double)st.st_size);
+ }
+
+ write_int(f_out, i);
+
+ if (write_batch)
+ write_batch_delta_file((char *)&i, sizeof i);
+
+ write_sum_head(f_out, s);
}
-
- /* 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 (verbose > 2 && !read_batch)
+ rprintf(FINFO, "calling match_sums %s\n", fname);
+
+ if (!am_server && verbose) {
+ rprintf(FINFO, "%s\n", fname+offset);
}
-
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
- } else {
- buf = NULL;
+
+ set_compression(fname);
+
+ if (read_batch) {
+ /* 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);
+ }
+ }
+ }
+ read_batch_delta_file(buff, MD4_SUM_LENGTH);
+ write_buf(f_out, buff, MD4_SUM_LENGTH);
+
+ }
+ } else { /* not checksum match */
+ rprintf (FINFO, "readbatch & checksums don't match\n");
+ rprintf (FINFO, "filename=%s is being skipped\n", fname);
+ continue;
+ }
+ } else { /* not read_batch */
+ match_sums(f_out, s, mbuf, st.st_size);
+ log_send(file, &initial_stats);
}
-
- if (verbose > 2)
- rprintf(FINFO,"send_files mapped %s of size %d\n",
- fname,(int)st.st_size);
-
- write_int(f_out,i);
-
- write_int(f_out,s->count);
- write_int(f_out,s->n);
- write_int(f_out,s->remainder);
-
- if (verbose > 2)
- rprintf(FINFO,"calling match_sums %s\n",fname);
-
- if (!am_server && verbose)
- rprintf(FINFO,"%s\n",fname+offset);
-
- match_sums(f_out,s,buf,st.st_size);
-
- if (buf) unmap_file(buf);
- close(fd);
-
+
+ if (!read_batch) {
+ 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);
+ rprintf(FINFO, "sender finished %s\n", fname);
}
if (verbose > 2)
- rprintf(FINFO,"send files finished\n");
+ rprintf(FINFO, "send files finished\n");
match_report();
- write_int(f_out,-1);
+ write_int(f_out, -1);
+ if (write_batch || read_batch) {
+ close_batch_csums_file();
+ close_batch_delta_file();
+ }
+
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff