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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 am_server;
-
- 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 checksum_seed;
-
-
- 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_rdev=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->rdev == last_rdev) flags |= SAME_RDEV;
- 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_RDEV))
- write_int(f,(int)file->rdev);
-
- #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_rdev = file->rdev;
- 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_rdev=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->rdev = (flags & SAME_RDEV) ? last_rdev : (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_rdev = file->rdev;
- 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(int f_out,int f_in)
- {
- if (am_server) {
- remote_version = read_int(f_in);
- write_int(f_out,PROTOCOL_VERSION);
- write_flush(f_out);
- } else {
- write_int(f_out,PROTOCOL_VERSION);
- write_flush(f_out);
- remote_version = read_int(f_in);
- }
-
- if (remote_version < MIN_PROTOCOL_VERSION ||
- remote_version > MAX_PROTOCOL_VERSION) {
- fprintf(FERROR,"protocol version mismatch - is your shell clean?\n");
- exit_cleanup(1);
- }
-
- 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;
- }
-
- if (remote_version >= 12) {
- if (am_server) {
- checksum_seed = time(NULL);
- write_int(f_out,checksum_seed);
- } else {
- checksum_seed = read_int(f_in);
- }
- }
-
- checksum_init();
- }
-
-