#include "rsync.h"
+extern int csum_length;
/*
a simple 32 bit checksum that can be upadted from either end
bcopy(buf+i,buf2,len-i);
MDupdate(&MD, buf2, (len-i)*8);
SIVAL(sum,0,MD.buffer[0]);
+ if (csum_length <= 4) return;
SIVAL(sum,4,MD.buffer[1]);
+ if (csum_length <= 8) return;
SIVAL(sum,8,MD.buffer[2]);
+ if (csum_length <= 12) return;
SIVAL(sum,12,MD.buffer[3]);
}
{
char *buf;
int fd;
- bzero(sum,SUM_LENGTH);
+ bzero(sum,csum_length);
fd = open(fname,O_RDONLY);
if (fd == -1) return;
#include "rsync.h"
+extern int csum_length;
+
extern int preserve_links;
extern int preserve_perms;
extern int preserve_devices;
#endif
if (always_checksum) {
- write_buf(f,file->sum,SUM_LENGTH);
+ write_buf(f,file->sum,csum_length);
}
last_mode = file->mode;
#endif
if (always_checksum)
- read_buf(f,file->sum,SUM_LENGTH);
+ read_buf(f,file->sum,csum_length);
last_mode = file->mode;
last_dev = file->dev;
#include "rsync.h"
+extern int csum_length;
+
extern int verbose;
extern int am_server;
extern int always_checksum;
#endif
if (always_checksum) {
- write_buf(f,file->sum,SUM_LENGTH);
+ write_buf(f,file->sum,csum_length);
}
last_mode = file->mode;
#endif
if (always_checksum)
- read_buf(f,file->sum,SUM_LENGTH);
+ read_buf(f,file->sum,csum_length);
last_mode = file->mode;
last_dev = file->dev;
int delete_mode=0;
int one_file_system=0;
int remote_version=0;
+int csum_length=SUM_LENGTH;
int am_server = 0;
static int sender = 0;
int ac = *argc;
static char argstr[50];
static char bsize[30];
+ static char slength[30];
int i, x;
args[ac++] = "--server";
sprintf(bsize,"-B%d",block_size);
args[ac++] = bsize;
}
+
+ if (csum_length != SUM_LENGTH) {
+ sprintf(slength,"--csum-length=%d",csum_length);
+ args[ac++] = slength;
+ }
if (delete_mode)
args[ac++] = "--delete";
fprintf(f," --exclude FILE exclude file FILE\n");
fprintf(f," --exclude-from FILE exclude files listed in FILE\n");
fprintf(f," --suffix SUFFIX override backup suffix\n");
+ fprintf(f," --csum-length LENGTH set the checksum length\n");
fprintf(f," --version print version number\n");
fprintf(f,"\n");
}
enum {OPT_VERSION,OPT_SUFFIX,OPT_SENDER,OPT_SERVER,OPT_EXCLUDE,
- OPT_EXCLUDE_FROM,OPT_DELETE,OPT_RSYNC_PATH};
+ OPT_EXCLUDE_FROM,OPT_DELETE,OPT_RSYNC_PATH,OPT_CSUM_LENGTH};
static char *short_options = "oblpguDCtcahvrIxne:B:";
{"exclude", 1, 0, OPT_EXCLUDE},
{"exclude-from",1, 0, OPT_EXCLUDE_FROM},
{"rsync-path", 1, 0, OPT_RSYNC_PATH},
+ {"csum-length", 1, 0, OPT_CSUM_LENGTH},
{"one-file-system",0, 0, 'x'},
{"ignore-times",0, 0, 'I'},
{"help", 0, 0, 'h'},
rsync_path = optarg;
break;
+ case OPT_CSUM_LENGTH:
+ csum_length = atoi(optarg);
+ csum_length = MIN(csum_length,SUM_LENGTH);
+ break;
+
case 'I':
ignore_times = 1;
break;
#include "rsync.h"
+extern int csum_length;
+
extern int verbose;
extern int am_server;
get_checksum2(map,l,sum2);
done_csum2 = 1;
}
- if (memcmp(sum2,s->sums[i].sum2,SUM_LENGTH) == 0) {
+ if (memcmp(sum2,s->sums[i].sum2,csum_length) == 0) {
matched(f,s,buf,len,offset,i);
offset += s->sums[i].len - 1;
k = MIN((len-offset), s->n);
#include "rsync.h"
+extern int csum_length;
+
extern int verbose;
extern int am_server;
extern int always_checksum;
if (s)
for (i=0;i<s->count;i++) {
write_int(f_out,s->sums[i].sum1);
- write_buf(f_out,s->sums[i].sum2,SUM_LENGTH);
+ write_buf(f_out,s->sums[i].sum2,csum_length);
}
write_flush(f_out);
}
for (i=0;i<s->count;i++) {
s->sums[i].sum1 = read_int(f);
- read_buf(f,s->sums[i].sum2,SUM_LENGTH);
+ read_buf(f,s->sums[i].sum2,csum_length);
s->sums[i].offset = offset;
s->sums[i].i = i;
if (st.st_size == flist->files[i].length &&
((!ignore_times && st.st_mtime == flist->files[i].modtime) ||
(always_checksum && S_ISREG(st.st_mode) &&
- memcmp(sum,flist->files[i].sum,SUM_LENGTH) == 0))) {
+ memcmp(sum,flist->files[i].sum,csum_length) == 0))) {
set_perms(fname,&flist->files[i],&st,1);
return;
}