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/*
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;
/*
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));
if (!s) out_of_memory("receive_sums");
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 (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");
for (i=0;i<s->count;i++) {
s->sums[i].sum1 = read_int(f);
read_buf(f,s->sums[i].sum2,csum_length);
s->sums[i].offset = offset;
s->sums[i].i = i;
if (i == s->count-1 && s->remainder != 0) {
s->sums[i].len = s->remainder;
} else {
s->sums[i].len = s->n;
}
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);
}
s->flength = offset;
return s;
}
void send_files(struct file_list *flist,int f_out,int f_in)
{
int fd;
struct sum_struct *s;
struct map_struct *buf;
STRUCT_STAT st;
char fname[MAXPATHLEN];
int i;
struct file_struct *file;
int phase = 0;
extern struct stats stats;
struct stats initial_stats;
if (verbose > 2)
rprintf(FINFO,"send_files starting\n");
setup_readbuffer(f_in);
while (1) {
int offset=0;
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 (i < 0 || i >= flist->count) {
rprintf(FERROR,"Invalid file index %d (count=%d)\n",
i, flist->count);
exit_cleanup(RERR_PROTOCOL);
}
file = flist->files[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);
continue;
}
initial_stats = stats;
s = receive_sums(f_in);
if (!s) {
io_error = 1;
rprintf(FERROR,"receive_sums failed\n");
return;
}
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);
} else {
buf = NULL;
}
if (verbose > 2)
rprintf(FINFO,"send_files mapped %s of size %.0f\n",
fname,(double)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) {
log_transfer(file, fname+offset);
}
set_compression(fname);
match_sums(f_out,s,buf,st.st_size);
log_send(file, &initial_stats);
if (buf) unmap_file(buf);
close(fd);
free_sums(s);
if (verbose > 2)
rprintf(FINFO,"sender finished %s\n",fname);
}
if (verbose > 2)
rprintf(FINFO,"send files finished\n");
match_report();
write_int(f_out,-1);
}
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