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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.
*/
/* compatability routines for older rsync protocol versions */
#include "rsync.h"
extern int csum_length;
extern int preserve_links;
extern int preserve_perms;
extern int preserve_devices;
extern int preserve_uid;
extern int preserve_gid;
extern int preserve_times;
extern int always_checksum;
extern int remote_version;
void (*send_file_entry)(struct file_struct *file,int f) = NULL;
void (*receive_file_entry)(struct file_struct *file,
unsigned char flags,int f) = NULL;
void send_file_entry_v10(struct file_struct *file,int f)
{
unsigned char flags;
static mode_t last_mode=0;
static dev_t last_dev=0;
static uid_t last_uid=0;
static gid_t last_gid=0;
static char lastdir[MAXPATHLEN]="";
char *p=NULL;
if (f == -1) return;
if (!file) {
write_byte(f,0);
return;
}
flags = FILE_VALID;
if (file->mode == last_mode) flags |= SAME_MODE;
if (file->dev == last_dev) flags |= SAME_DEV;
if (file->uid == last_uid) flags |= SAME_UID;
if (file->gid == last_gid) flags |= SAME_GID;
if (strncmp(file->name,lastdir,strlen(lastdir)) == 0) {
flags |= SAME_DIR;
p = file->name + strlen(lastdir);
} else {
p = file->name;
}
write_byte(f,flags);
if (flags & SAME_DIR)
write_byte(f,strlen(p));
else
write_int(f,strlen(p));
write_buf(f,p,strlen(p));
write_int(f,(int)file->modtime);
write_int(f,(int)file->length);
if (!(flags & SAME_MODE))
write_int(f,(int)file->mode);
if (preserve_uid && !(flags & SAME_UID))
write_int(f,(int)file->uid);
if (preserve_gid && !(flags & SAME_GID))
write_int(f,(int)file->gid);
if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_DEV))
write_int(f,(int)file->dev);
#if SUPPORT_LINKS
if (preserve_links && S_ISLNK(file->mode)) {
write_int(f,strlen(file->link));
write_buf(f,file->link,strlen(file->link));
}
#endif
if (always_checksum) {
write_buf(f,file->sum,csum_length);
}
last_mode = file->mode;
last_dev = file->dev;
last_uid = file->uid;
last_gid = file->gid;
p = strrchr(file->name,'/');
if (p) {
int l = (int)(p - file->name) + 1;
strncpy(lastdir,file->name,l);
lastdir[l] = 0;
} else {
strcpy(lastdir,"");
}
}
void receive_file_entry_v10(struct file_struct *file,
unsigned char flags,int f)
{
static mode_t last_mode=0;
static dev_t last_dev=0;
static uid_t last_uid=0;
static gid_t last_gid=0;
static char lastdir[MAXPATHLEN]="";
char *p=NULL;
int l1,l2;
if (flags & SAME_DIR) {
l1 = read_byte(f);
l2 = strlen(lastdir);
} else {
l1 = read_int(f);
l2 = 0;
}
file->name = (char *)malloc(l1+l2+1);
if (!file->name) out_of_memory("receive_file_entry");
strncpy(file->name,lastdir,l2);
read_buf(f,file->name+l2,l1);
file->name[l1+l2] = 0;
file->modtime = (time_t)read_int(f);
file->length = (off_t)read_int(f);
file->mode = (flags & SAME_MODE) ? last_mode : (mode_t)read_int(f);
if (preserve_uid)
file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f);
if (preserve_gid)
file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
if (preserve_devices && IS_DEVICE(file->mode))
file->dev = (flags & SAME_DEV) ? last_dev : (dev_t)read_int(f);
#if SUPPORT_LINKS
if (preserve_links && S_ISLNK(file->mode)) {
int l = read_int(f);
file->link = (char *)malloc(l+1);
if (!file->link) out_of_memory("receive_file_entry");
read_buf(f,file->link,l);
file->link[l] = 0;
}
#endif
if (always_checksum)
read_buf(f,file->sum,csum_length);
last_mode = file->mode;
last_dev = file->dev;
last_uid = file->uid;
last_gid = file->gid;
p = strrchr(file->name,'/');
if (p) {
int l = (int)(p - file->name) + 1;
strncpy(lastdir,file->name,l);
lastdir[l] = 0;
} else {
strcpy(lastdir,"");
}
}
void setup_protocol(void)
{
if (remote_version == 10) {
send_file_entry = send_file_entry_v10;
receive_file_entry = receive_file_entry_v10;
} else {
send_file_entry = send_file_entry_v11;
receive_file_entry = receive_file_entry_v11;
}
}
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