X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/94481d9113220ded7ee6a76a96fa468c79680478..0b76cd63ee0eacb95285dfb5d2cac2992e1794ef:/main.c

diff --git a/main.c b/main.c
index a2733e64..0bcc7f54 100644
--- a/main.c
+++ b/main.c
@@ -21,16 +21,20 @@
 
 int verbose = 0;
 int always_checksum = 0;
-time_t starttime;
-off_t total_size = 0;
+time_t starttime = 0;
+int64 total_size = 0;
 int block_size=BLOCK_SIZE;
 
 char *backup_suffix = BACKUP_SUFFIX;
+char *tmpdir = NULL;
 
 static char *rsync_path = RSYNC_NAME;
 
 int make_backups = 0;
+int whole_file = 0;
+int copy_links = 0;
 int preserve_links = 0;
+int preserve_hard_links = 0;
 int preserve_perms = 0;
 int preserve_devices = 0;
 int preserve_uid = 0;
@@ -43,42 +47,61 @@ int local_server=0;
 int ignore_times=0;
 int delete_mode=0;
 int one_file_system=0;
+int remote_version=0;
+int sparse_files=0;
+int do_compression=0;
+int am_root=0;
+int orig_umask=0;
+int relative_paths=0;
+int numeric_ids = 0;
+int force_delete = 0;
+int io_timeout = 0;
+int io_error = 0;
+int read_only = 0;
+static int module_id;
+
+static int port = RSYNC_PORT;
+
+static char *shell_cmd;
+
+extern int csum_length;
 
 int am_server = 0;
-static int sender = 0;
+int am_sender=0;
 int recurse = 0;
+int am_daemon=0;
 
-static void usage(FILE *f);
+static void usage(int fd);
 
 static void report(int f)
 {
-  int in,out,tsize;
+  int64 in,out,tsize;
   time_t t = time(NULL);
   
   if (!verbose) return;
 
-  if (am_server && sender) {
-    write_int(f,read_total());
-    write_int(f,write_total());
-    write_int(f,total_size);
+  if (am_server && am_sender) {
+    write_longint(f,read_total());
+    write_longint(f,write_total());
+    write_longint(f,total_size);
     write_flush(f);
     return;
   }
     
-  if (sender) {
+  if (am_sender) {
     in = read_total();
     out = write_total();
-    tsize = (int)total_size;
+    tsize = total_size;
   } else {
-    in = read_int(f);
-    out = read_int(f);
-    tsize = read_int(f);
+    in = read_longint(f);
+    out = read_longint(f);
+    tsize = read_longint(f);
   }
 
-  printf("wrote %d bytes  read %d bytes  %g bytes/sec\n",
-	 out,in,(in+out)/(0.5 + (t-starttime)));        
-  printf("total size is %d  speedup is %g\n",
-	 tsize,(1.0*tsize)/(in+out));
+  printf("wrote %.0f bytes  read %.0f bytes  %.2f bytes/sec\n",
+	 (double)out,(double)in,(in+out)/(0.5 + (t-starttime)));
+  printf("total size is %.0f  speedup is %.2f\n",
+	 (double)tsize,(1.0*tsize)/(in+out));
 }
 
 
@@ -87,11 +110,12 @@ static void server_options(char **args,int *argc)
   int ac = *argc;
   static char argstr[50];
   static char bsize[30];
+  static char iotime[30];
   int i, x;
 
   args[ac++] = "--server";
 
-  if (!sender)
+  if (!am_sender)
     args[ac++] = "--sender";
 
   x = 1;
@@ -106,6 +130,12 @@ static void server_options(char **args,int *argc)
     argstr[x++] = 'n';
   if (preserve_links)
     argstr[x++] = 'l';
+  if (copy_links)
+    argstr[x++] = 'L';
+  if (whole_file)
+    argstr[x++] = 'W';
+  if (preserve_hard_links)
+    argstr[x++] = 'H';
   if (preserve_uid)
     argstr[x++] = 'o';
   if (preserve_gid)
@@ -124,8 +154,14 @@ static void server_options(char **args,int *argc)
     argstr[x++] = 'C';
   if (ignore_times)
     argstr[x++] = 'I';
+  if (relative_paths)
+    argstr[x++] = 'R';
   if (one_file_system)
     argstr[x++] = 'x';
+  if (sparse_files)
+    argstr[x++] = 'S';
+  if (do_compression)
+    argstr[x++] = 'z';
   argstr[x] = 0;
 
   if (x != 1) args[ac++] = argstr;
@@ -134,74 +170,102 @@ static void server_options(char **args,int *argc)
     sprintf(bsize,"-B%d",block_size);
     args[ac++] = bsize;
   }    
-  
+
+  if (io_timeout) {
+    sprintf(iotime,"--timeout=%d",io_timeout);
+    args[ac++] = iotime;
+  }    
+
+  if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
+	  args[ac++] = "--suffix";
+	  args[ac++] = backup_suffix;
+  }
+
   if (delete_mode)
     args[ac++] = "--delete";
 
+  if (force_delete)
+    args[ac++] = "--force";
+
+  if (numeric_ids)
+    args[ac++] = "--numeric-ids";
+
+  if (tmpdir) {
+	  args[ac++] = "--temp-dir";
+	  args[ac++] = tmpdir;
+  }
+
   *argc = ac;
 }
 
 
 
-int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
+static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
 {
-  char *args[100];
-  int i,argc=0;
-  char *tok,*p;
-
-  if (!local_server) {
-    if (!cmd)
-      cmd = getenv(RSYNC_RSH_ENV);
-    if (!cmd)
-      cmd = RSYNC_RSH;
-    cmd = strdup(cmd);
-    if (!cmd) 
-      goto oom;
-
-    for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) {
-      args[argc++] = tok;
-    }
+	char *args[100];
+	int i,argc=0, ret;
+	char *tok,*dir=NULL;
+
+	if (!local_server) {
+		if (!cmd)
+			cmd = getenv(RSYNC_RSH_ENV);
+		if (!cmd)
+			cmd = RSYNC_RSH;
+		cmd = strdup(cmd);
+		if (!cmd) 
+			goto oom;
+
+		for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) {
+			args[argc++] = tok;
+		}
+
+#if HAVE_REMSH
+		/* remsh (on HPUX) takes the arguments the other way around */
+		args[argc++] = machine;
+		if (user) {
+			args[argc++] = "-l";
+			args[argc++] = user;
+		}
+#else
+		if (user) {
+			args[argc++] = "-l";
+			args[argc++] = user;
+		}
+		args[argc++] = machine;
+#endif
 
-    if (user) {
-      args[argc++] = "-l";
-      args[argc++] = user;
-    }
-    args[argc++] = machine;
-  }
+		args[argc++] = rsync_path;
 
-  args[argc++] = rsync_path;
+		server_options(args,&argc);
+	}
 
-  server_options(args,&argc);
+	args[argc++] = ".";
 
-  if (path && *path) {
-    char *dir = strdup(path);
-    p = strrchr(dir,'/');
-    if (p) {
-      *p = 0;
-      args[argc++] = dir;
-      p++;
-    } else {
-      args[argc++] = ".";
-      p = dir;
-    }
-    if (p[0])
-      args[argc++] = path;
-  }
+	if (path && *path) 
+		args[argc++] = path;
 
-  args[argc] = NULL;
+	args[argc] = NULL;
 
-  if (verbose > 3) {
-    fprintf(stderr,"cmd=");
-    for (i=0;i<argc;i++)
-      fprintf(stderr,"%s ",args[i]);
-    fprintf(stderr,"\n");
-  }
+	if (verbose > 3) {
+		rprintf(FINFO,"cmd=");
+		for (i=0;i<argc;i++)
+			rprintf(FINFO,"%s ",args[i]);
+		rprintf(FINFO,"\n");
+	}
+
+	if (local_server) {
+		ret = local_child(argc, args, f_in, f_out);
+	} else {
+		ret = piped_child(args,f_in,f_out);
+	}
+
+	if (dir) free(dir);
 
-  return piped_child(args,f_in,f_out);
+	return ret;
 
 oom:
-  out_of_memory("do_cmd");
-  return 0; /* not reached */
+	out_of_memory("do_cmd");
+	return 0; /* not reached */
 }
 
 
@@ -209,19 +273,19 @@ oom:
 
 static char *get_local_name(struct file_list *flist,char *name)
 {
-  struct stat st;
+  STRUCT_STAT st;
 
-  if (stat(name,&st) == 0) {
+  if (do_stat(name,&st) == 0) {
     if (S_ISDIR(st.st_mode)) {
       if (chdir(name) != 0) {
-	fprintf(stderr,"chdir %s : %s\n",name,strerror(errno));
-	exit(1);
+	rprintf(FERROR,"chdir %s : %s (1)\n",name,strerror(errno));
+	exit_cleanup(1);
       }
       return NULL;
     }
     if (flist->count > 1) {
-      fprintf(stderr,"ERROR: destination must be a directory when copying more than 1 file\n");
-      exit(1);
+      rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n");
+      exit_cleanup(1);
     }
     return name;
   }
@@ -232,16 +296,16 @@ static char *get_local_name(struct file_list *flist,char *name)
   if (!name) 
     return NULL;
 
-  if (mkdir(name,0777) != 0) {
-    fprintf(stderr,"mkdir %s : %s\n",name,strerror(errno));
-    exit(1);
+  if (do_mkdir(name,0777 & ~orig_umask) != 0) {
+    rprintf(FERROR,"mkdir %s : %s (1)\n",name,strerror(errno));
+    exit_cleanup(1);
   } else {
-    fprintf(am_server?stderr:stdout,"created directory %s\n",name);
+    rprintf(FINFO,"created directory %s\n",name);
   }
 
   if (chdir(name) != 0) {
-    fprintf(stderr,"chdir %s : %s\n",name,strerror(errno));
-    exit(1);
+    rprintf(FERROR,"chdir %s : %s (2)\n",name,strerror(errno));
+    exit_cleanup(1);
   }
 
   return NULL;
@@ -250,141 +314,402 @@ static char *get_local_name(struct file_list *flist,char *name)
 
 
 
-void do_server_sender(int argc,char *argv[])
+static void do_server_sender(int f_in, int f_out, int argc,char *argv[])
 {
   int i;
-  char *dir = argv[0];
   struct file_list *flist;
+  char *dir = argv[0];
 
   if (verbose > 2)
-    fprintf(stderr,"server_sender starting pid=%d\n",(int)getpid());
+    rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid());
   
-  if (chdir(dir) != 0) {
-    fprintf(stderr,"chdir %s: %s\n",dir,strerror(errno));
-    exit(1);
+  if (!relative_paths && chdir(dir) != 0) {
+	  rprintf(FERROR,"chdir %s: %s (3)\n",dir,strerror(errno));
+	  exit_cleanup(1);
   }
   argc--;
   argv++;
   
   if (strcmp(dir,".")) {
-    int l = strlen(dir);
-    for (i=0;i<argc;i++)
-      argv[i] += l+1;
+	  int l = strlen(dir);
+	  if (strcmp(dir,"/") == 0) 
+		  l = 0;
+	  for (i=0;i<argc;i++)
+		  argv[i] += l+1;
+  }
+
+  if (am_daemon) {
+	  char *name = lp_name(module_id);
+	  int l = strlen(name);
+	  for (i=0;i<argc;i++) {
+		  if (strncmp(argv[i], name, l) == 0) {
+			  argv[i] += l;
+			  if (!*argv[i]) argv[i] = ".";
+		  }
+	  }
   }
 
   if (argc == 0 && recurse) {
-    argc=1;
-    argv--;
-    argv[0] = ".";
+	  argc=1;
+	  argv--;
+	  argv[0] = ".";
   }
-    
 
-  flist = send_file_list(STDOUT_FILENO,recurse,argc,argv);
-  send_files(flist,STDOUT_FILENO,STDIN_FILENO);
-  report(STDOUT_FILENO);
-  exit(0);
+  rprintf(FINFO,"sending file list\n");
+
+  flist = send_file_list(f_out,argc,argv);
+  send_files(flist,f_out,f_in);
+  report(f_out);
+  exit_cleanup(0);
 }
 
 
+static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
+{
+  int pid;
+  int status=0;
+  int recv_pipe[2];
+
+  if (preserve_hard_links)
+    init_hard_links(flist);
+
+  if (pipe(recv_pipe) < 0) {
+    rprintf(FERROR,"pipe failed in do_recv\n");
+    exit(1);
+  }
+  
+
+  if ((pid=do_fork()) == 0) {
+    recv_files(f_in,flist,local_name,recv_pipe[1]);
+    if (verbose > 2)
+      rprintf(FINFO,"receiver read %ld\n",(long)read_total());
+    exit_cleanup(0);
+  }
+
+  generate_files(f_out,flist,local_name,recv_pipe[0]);
+
+  waitpid(pid, &status, 0);
+
+  return status;
+}
+
 
-void do_server_recv(int argc,char *argv[])
+static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
 {
-  int pid,status;
-  char *dir = NULL;
+  int status;
   struct file_list *flist;
   char *local_name=NULL;
+  char *dir = NULL;
   
   if (verbose > 2)
-    fprintf(stderr,"server_recv(%d) starting pid=%d\n",argc,(int)getpid());
+    rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid());
+
+  if (am_daemon) {
+	  char *name = lp_name(module_id);
+	  int i, l = strlen(name);
+	  for (i=0;i<argc;i++) {
+		  if (strncmp(argv[i], name, l) == 0) {
+			  argv[i] += l;
+			  if (!*argv[i]) argv[i] = ".";
+		  }
+		  rprintf(FINFO,"argv[%d]=%s\n", i, argv[i]);
+	  }
+  }
 
   if (argc > 0) {
-    dir = argv[0];
-    argc--;
-    argv++;
-    if (chdir(dir) != 0) {
-      fprintf(stderr,"chdir %s : %s\n",dir,strerror(errno));
-      exit(1);
-    }    
+	  dir = argv[0];
+	  argc--;
+	  argv++;
+	  if (!am_daemon && chdir(dir) != 0) {
+		  rprintf(FERROR,"chdir %s : %s (4)\n",
+			  dir,strerror(errno));
+		  exit_cleanup(1);
+	  }    
   }
 
   if (delete_mode)
-    recv_exclude_list(STDIN_FILENO);
+    recv_exclude_list(f_in);
 
-  flist = recv_file_list(STDIN_FILENO);
+  flist = recv_file_list(f_in);
   if (!flist || flist->count == 0) {
-    fprintf(stderr,"nothing to do\n");
-    exit(1);
+    rprintf(FERROR,"nothing to do\n");
+    exit_cleanup(1);
   }
 
   if (argc > 0) {    
-    if (strcmp(dir,".")) {
-      argv[0] += strlen(dir);
-      if (argv[0][0] == '/') argv[0]++;
-    }
-    local_name = get_local_name(flist,argv[0]);
+	  if (strcmp(dir,".")) {
+		  argv[0] += strlen(dir);
+		  if (argv[0][0] == '/') argv[0]++;
+	  }
+	  local_name = get_local_name(flist,argv[0]);
   }
 
-  if ((pid=fork()) == 0) {
-    recv_files(STDIN_FILENO,flist,local_name);
-    if (verbose > 2)
-      fprintf(stderr,"receiver read %d\n",read_total());
-    exit(0);
-  }
+  status = do_recv(f_in,f_out,flist,local_name);
+  exit_cleanup(status);
+}
 
-  generate_files(STDOUT_FILENO,flist,local_name);
 
-  waitpid(pid, &status, 0);
-  exit(status);
+void start_server(int f_in, int f_out, int argc, char *argv[])
+{
+      setup_protocol(f_out, f_in);
+	
+      if (am_sender) {
+	      recv_exclude_list(f_in);
+	      if (cvs_exclude)
+		      add_cvs_excludes();
+	      do_server_sender(f_in, f_out, argc, argv);
+      } else {
+	      do_server_recv(f_in, f_out, argc, argv);
+      }
+      exit_cleanup(0);
+}
+
+static int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
+{
+	struct file_list *flist;
+	int status = 0, status2 = 0;
+	char *local_name = NULL;
+
+	setup_protocol(f_out,f_in);
+	
+	if (am_sender) {
+		if (cvs_exclude)
+			add_cvs_excludes();
+		if (delete_mode) 
+			send_exclude_list(f_out);
+		flist = send_file_list(f_out,argc,argv);
+		if (verbose > 3) 
+			rprintf(FINFO,"file list sent\n");
+		send_files(flist,f_out,f_in);
+		if (pid != -1) {
+			if (verbose > 3)
+				rprintf(FINFO,"waiting on %d\n",pid);
+			waitpid(pid, &status, 0);
+		}
+		report(-1);
+		exit_cleanup(status);
+	}
+	
+	send_exclude_list(f_out);
+	
+	flist = recv_file_list(f_in);
+	if (!flist || flist->count == 0) {
+		rprintf(FINFO,"nothing to do\n");
+		exit_cleanup(0);
+	}
+	
+	local_name = get_local_name(flist,argv[0]);
+	
+	status2 = do_recv(f_in,f_out,flist,local_name);
+	
+	report(f_in);
+	
+	if (pid != -1) {
+		waitpid(pid, &status, 0);
+	}
+	
+	return status | status2;
+}
+
+
+int start_socket_client(char *host, char *path, int argc, char *argv[])
+{
+	int fd, i;
+	char *sargs[MAX_ARGS];
+	int sargc=0;
+	char line[1024];
+	char *p;
+	int version;
+
+	fd = open_socket_out(host, port);
+	if (fd == -1) {
+		exit_cleanup(1);
+	}
+	
+	server_options(sargs,&sargc);
+
+	sargs[sargc++] = ".";
+
+	if (path && *path) 
+		sargs[sargc++] = path;
+
+	sargs[sargc] = NULL;
+
+	p = strchr(path,'/');
+	if (p) *p = 0;
+	io_printf(fd,"%s\n",path);
+	if (p) *p = '/';
+
+	if (!read_line(fd, line, sizeof(line)-1)) {
+		return -1;
+	}
+
+	if (sscanf(line,"RSYNCD %d", &version) != 1) {
+		return -1;
+	}
+
+	while (1) {
+		if (!read_line(fd, line, sizeof(line)-1)) {
+			return -1;
+		}
+		if (strcmp(line,"RSYNCD: OK") == 0) break;
+		rprintf(FINFO,"%s\n", line);
+	}
+
+	for (i=0;i<sargc;i++) {
+		io_printf(fd,"%s\n", sargs[i]);
+	}
+	io_printf(fd,"\n");
+
+#if 0
+	while (1) {
+		if (!read_line(fd, line, sizeof(line)-1)) {
+			return -1;
+		}
+		rprintf(FINFO,"%s\n", line);
+	}
+#endif
+
+	return client_run(fd, fd, -1, argc, argv);
+}
+
+int start_client(int argc, char *argv[])
+{
+	char *p;
+	char *shell_machine = NULL;
+	char *shell_path = NULL;
+	char *shell_user = NULL;
+	int pid;
+	int f_in,f_out;
+
+	p = strchr(argv[0],':');
+
+	if (p) {
+		if (p[1] == ':') {
+			*p = 0;
+			return start_socket_client(argv[0], p+2, argc-1, argv+1);
+		}
+		am_sender = 0;
+		*p = 0;
+		shell_machine = argv[0];
+		shell_path = p+1;
+		argc--;
+		argv++;
+	} else {
+		am_sender = 1;
+
+		p = strchr(argv[argc-1],':');
+		if (!p) {
+			local_server = 1;
+		} else if (p[1] == ':') {
+			*p = 0;
+			return start_socket_client(argv[argc-1], p+2, argc-1, argv);
+		}
+		
+		if (local_server) {
+			shell_machine = NULL;
+			shell_path = argv[argc-1];
+		} else {
+			*p = 0;
+			shell_machine = argv[argc-1];
+			shell_path = p+1;
+		}
+		argc--;
+	}
+	
+	if (shell_machine) {
+		p = strchr(shell_machine,'@');
+		if (p) {
+			*p = 0;
+			shell_user = shell_machine;
+			shell_machine = p+1;
+		}
+	}
+
+	if (verbose > 3) {
+		rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n",
+			shell_cmd?shell_cmd:"",
+			shell_machine?shell_machine:"",
+			shell_user?shell_user:"",
+			shell_path?shell_path:"");
+	}
+	
+	if (!am_sender && argc != 1) {
+		usage(FERROR);
+		exit_cleanup(1);
+	}
+	
+	pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out);
+	
+#if HAVE_SETLINEBUF
+	setlinebuf(stdout);
+	setlinebuf(stderr);
+#endif
+
+	return client_run(f_in, f_out, pid, argc, argv);
 }
 
 
-static void usage(FILE *f)
+static void usage(int F)
 {
-  fprintf(f,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
+  rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
 	  VERSION);
-  fprintf(f,"Usage:\t%s [options] src user@host:dest\nOR",RSYNC_NAME);
-  fprintf(f,"\t%s [options] user@host:src dest\n\n",RSYNC_NAME);
-  fprintf(f,"Options:\n");
-  fprintf(f,"-v, --verbose            increase verbosity\n");
-  fprintf(f,"-c, --checksum           always checksum\n");
-  fprintf(f,"-a, --archive            archive mode (same as -rlptDog)\n");
-  fprintf(f,"-r, --recursive          recurse into directories\n");
-  fprintf(f,"-b, --backup             make backups (default ~ extension)\n");
-  fprintf(f,"-u, --update             update only (don't overwrite newer files)\n");
-  fprintf(f,"-l, --links              preserve soft links\n");
-  fprintf(f,"-p, --perms              preserve permissions\n");
-  fprintf(f,"-o, --owner              preserve owner (root only)\n");
-  fprintf(f,"-g, --group              preserve group\n");
-  fprintf(f,"-D, --devices            preserve devices (root only)\n");
-  fprintf(f,"-t, --times              preserve times\n");  
-  fprintf(f,"-n, --dry-run            show what would have been transferred\n");
-  fprintf(f,"-x, --one-file-system    don't cross filesystem boundaries\n");
-  fprintf(f,"-B, --block-size SIZE    checksum blocking size\n");  
-  fprintf(f,"-e, --rsh COMMAND        specify rsh replacement\n");
-  fprintf(f,"    --rsync-path PATH    specify path to rsync on the remote machine\n");
-  fprintf(f,"-C, --cvs-exclude        auto ignore files in the same way CVS does\n");
-  fprintf(f,"    --delete             delete files that don't exist on the sending side\n");
-  fprintf(f,"-I, --ignore-times       don't exclude files that match length and time\n");
-  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,"    --version            print version number\n");  
-
-  fprintf(f,"\n");
-  fprintf(f,"the backup suffix defaults to %s\n",BACKUP_SUFFIX);
-  fprintf(f,"the block size defaults to %d\n",BLOCK_SIZE);  
+  rprintf(F,"Usage:\t%s [options] src user@host:dest\nOR",RSYNC_NAME);
+  rprintf(F,"\t%s [options] user@host:src dest\n\n",RSYNC_NAME);
+  rprintf(F,"Options:\n");
+  rprintf(F,"-v, --verbose            increase verbosity\n");
+  rprintf(F,"-c, --checksum           always checksum\n");
+  rprintf(F,"-a, --archive            archive mode (same as -rlptDog)\n");
+  rprintf(F,"-r, --recursive          recurse into directories\n");
+  rprintf(F,"-R, --relative           use relative path names\n");
+  rprintf(F,"-b, --backup             make backups (default ~ extension)\n");
+  rprintf(F,"-u, --update             update only (don't overwrite newer files)\n");
+  rprintf(F,"-l, --links              preserve soft links\n");
+  rprintf(F,"-L, --copy-links         treat soft links like regular files\n");
+  rprintf(F,"-H, --hard-links         preserve hard links\n");
+  rprintf(F,"-p, --perms              preserve permissions\n");
+  rprintf(F,"-o, --owner              preserve owner (root only)\n");
+  rprintf(F,"-g, --group              preserve group\n");
+  rprintf(F,"-D, --devices            preserve devices (root only)\n");
+  rprintf(F,"-t, --times              preserve times\n");  
+  rprintf(F,"-S, --sparse             handle sparse files efficiently\n");
+  rprintf(F,"-n, --dry-run            show what would have been transferred\n");
+  rprintf(F,"-W, --whole-file         copy whole files, no incremental checks\n");
+  rprintf(F,"-x, --one-file-system    don't cross filesystem boundaries\n");
+  rprintf(F,"-B, --block-size SIZE    checksum blocking size\n");  
+  rprintf(F,"-e, --rsh COMMAND        specify rsh replacement\n");
+  rprintf(F,"    --rsync-path PATH    specify path to rsync on the remote machine\n");
+  rprintf(F,"-C, --cvs-exclude        auto ignore files in the same way CVS does\n");
+  rprintf(F,"    --delete             delete files that don't exist on the sending side\n");
+  rprintf(F,"    --force              force deletion of directories even if not empty\n");
+  rprintf(F,"    --numeric-ids        don't map uid/gid values by user/group name\n");
+  rprintf(F,"    --timeout TIME       set IO timeout in seconds\n");
+  rprintf(F,"-I, --ignore-times       don't exclude files that match length and time\n");
+  rprintf(F,"-T  --temp-dir DIR       create temporary files in directory DIR\n");
+  rprintf(F,"-z, --compress           compress file data\n");
+  rprintf(F,"    --exclude FILE       exclude file FILE\n");
+  rprintf(F,"    --exclude-from FILE  exclude files listed in FILE\n");
+  rprintf(F,"    --suffix SUFFIX      override backup suffix\n");  
+  rprintf(F,"    --version            print version number\n");  
+
+  rprintf(F,"\n");
+  rprintf(F,"the backup suffix defaults to %s\n",BACKUP_SUFFIX);
+  rprintf(F,"the block size defaults to %d\n",BLOCK_SIZE);  
 }
 
 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_NUMERIC_IDS,OPT_RSYNC_PATH,
+      OPT_FORCE,OPT_TIMEOUT,OPT_DAEMON};
 
-static char *short_options = "oblpguDCtcahvrIxne:B:";
+static char *short_options = "oblLWHpguDCtcahvrRIxnSe:B:T:z";
 
 static struct option long_options[] = {
   {"version",     0,     0,    OPT_VERSION},
   {"server",      0,     0,    OPT_SERVER},
   {"sender",      0,     0,    OPT_SENDER},
   {"delete",      0,     0,    OPT_DELETE},
+  {"force",       0,     0,    OPT_FORCE},
+  {"numeric-ids", 0,     0,    OPT_NUMERIC_IDS},
   {"exclude",     1,     0,    OPT_EXCLUDE},
   {"exclude-from",1,     0,    OPT_EXCLUDE_FROM},
   {"rsync-path",  1,     0,    OPT_RSYNC_PATH},
@@ -392,6 +717,7 @@ static struct option long_options[] = {
   {"ignore-times",0,     0,    'I'},
   {"help",        0,     0,    'h'},
   {"dry-run",     0,     0,    'n'},
+  {"sparse",      0,     0,    'S'},
   {"cvs-exclude", 0,     0,    'C'},
   {"archive",     0,     0,    'a'},
   {"checksum",    0,     0,    'c'},
@@ -399,32 +725,34 @@ static struct option long_options[] = {
   {"update",      0,     0,    'u'},
   {"verbose",     0,     0,    'v'},
   {"recursive",   0,     0,    'r'},
+  {"relative",    0,     0,    'R'},
   {"devices",     0,     0,    'D'},
   {"perms",       0,     0,    'p'},
   {"links",       0,     0,    'l'},
+  {"copy-links",  0,     0,    'L'},
+  {"whole-file",  0,     0,    'W'},
+  {"hard-links",  0,     0,    'H'},
   {"owner",       0,     0,    'o'},
   {"group",       0,     0,    'g'},
   {"times",       0,     0,    't'},
   {"rsh",         1,     0,    'e'},
   {"suffix",      1,     0,    OPT_SUFFIX},
   {"block-size",  1,     0,    'B'},
+  {"timeout",     1,     0,    OPT_TIMEOUT},
+  {"temp-dir",    1,     0,    'T'},
+  {"compress",	  0,	 0,    'z'},
+  {"daemon",      0,     0,    OPT_DAEMON},
   {0,0,0,0}};
 
-int main(int argc,char *argv[])
+RETSIGTYPE sigusr1_handler(int val) {
+	exit_cleanup(1);
+}
+
+
+static void parse_arguments(int argc, char *argv[])
 {
-    int pid, status, pid2, status2;
     int opt;
     int option_index;
-    char *shell_cmd = NULL;
-    char *shell_machine = NULL;
-    char *shell_path = NULL;
-    char *shell_user = NULL;
-    char *p;
-    int f_in,f_out;
-    struct file_list *flist;
-    char *local_name = NULL;
-
-    starttime = time(NULL);
 
     while ((opt = getopt_long(argc, argv, 
 			      short_options, long_options, &option_index)) 
@@ -434,7 +762,7 @@ int main(int argc,char *argv[])
 	case OPT_VERSION:
 	  printf("rsync version %s  protocol version %d\n",
 		 VERSION,PROTOCOL_VERSION);
-	  exit(0);
+	  exit_cleanup(0);
 
 	case OPT_SUFFIX:
 	  backup_suffix = optarg;
@@ -456,6 +784,14 @@ int main(int argc,char *argv[])
 	  delete_mode = 1;
 	  break;
 
+	case OPT_FORCE:
+	  force_delete = 1;
+	  break;
+
+	case OPT_NUMERIC_IDS:
+	  numeric_ids = 1;
+	  break;
+
 	case OPT_EXCLUDE:
 	  add_exclude(optarg);
 	  break;
@@ -465,8 +801,8 @@ int main(int argc,char *argv[])
 	  break;
 
 	case 'h':
-	  usage(stdout);
-	  exit(0);
+	  usage(FINFO);
+	  exit_cleanup(0);
 
 	case 'b':
 	  make_backups=1;
@@ -476,6 +812,10 @@ int main(int argc,char *argv[])
 	  dry_run=1;
 	  break;
 
+	case 'S':
+	  sparse_files=1;
+	  break;
+
 	case 'C':
 	  cvs_exclude=1;
 	  break;
@@ -484,23 +824,33 @@ int main(int argc,char *argv[])
 	  update_only=1;
 	  break;
 
-#if SUPPORT_LINKS
 	case 'l':
 	  preserve_links=1;
 	  break;
+
+	case 'L':
+	  copy_links=1;
+	  break;
+
+	case 'W':
+	  whole_file=1;
+	  break;
+
+	case 'H':
+#if SUPPORT_HARD_LINKS
+	  preserve_hard_links=1;
+#else 
+	  rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
+	  exit_cleanup(1);
 #endif
+	  break;
 
 	case 'p':
 	  preserve_perms=1;
 	  break;
 
 	case 'o':
-	  if (getuid() == 0) {
-	    preserve_uid=1;
-	  } else {
-	    fprintf(stderr,"-o only allowed for root\n");
-	    exit(1);
-	  }
+	  preserve_uid=1;
 	  break;
 
 	case 'g':
@@ -508,12 +858,7 @@ int main(int argc,char *argv[])
 	  break;
 
 	case 'D':
-	  if (getuid() == 0) {
-	    preserve_devices=1;
-	  } else {
-	    fprintf(stderr,"-D only allowed for root\n");
-	    exit(1);
-	  }
+	  preserve_devices=1;
 	  break;
 
 	case 't':
@@ -536,10 +881,10 @@ int main(int argc,char *argv[])
 	  preserve_perms=1;
 	  preserve_times=1;
 	  preserve_gid=1;
-	  if (getuid() == 0) {
+	  if (am_root) {
 	    preserve_devices=1;
 	    preserve_uid=1;
-	  }	    
+	  }
 	  break;
 
 	case OPT_SERVER:
@@ -548,16 +893,20 @@ int main(int argc,char *argv[])
 
 	case OPT_SENDER:
 	  if (!am_server) {
-	    usage(stderr);
-	    exit(1);
+	    usage(FERROR);
+	    exit_cleanup(1);
 	  }
-	  sender = 1;
+	  am_sender = 1;
 	  break;
 
 	case 'r':
 	  recurse = 1;
 	  break;
 
+	case 'R':
+	  relative_paths = 1;
+	  break;
+
 	case 'e':
 	  shell_cmd = optarg;
 	  break;
@@ -566,155 +915,230 @@ int main(int argc,char *argv[])
 	  block_size = atoi(optarg);
 	  break;
 
+	case OPT_TIMEOUT:
+	  io_timeout = atoi(optarg);
+	  break;
+
+	case 'T':
+		tmpdir = optarg;
+		break;
+
+        case 'z':
+	  do_compression = 1;
+	  break;
+
+	case OPT_DAEMON:
+		am_daemon = 1;
+		break;
+
 	default:
-	  fprintf(stderr,"bad option -%c\n",opt);
-	  exit(1);
+	  /* rprintf(FERROR,"bad option -%c\n",opt); */
+	  exit_cleanup(1);
 	}
     }
+}
 
-    while (optind--) {
-      argc--;
-      argv++;
-    }
+static int rsync_module(int fd, int i)
+{
+	int argc=0;
+	char *argv[MAX_ARGS];
+	char **argp;
+	char line[1024];
 
-    if (dry_run)
-      verbose = MAX(verbose,1);
+	module_id = i;
 
-    if (am_server) {
-      int version = read_int(STDIN_FILENO);
-      if (version != PROTOCOL_VERSION) {
-	fprintf(stderr,"protocol version mismatch %d %d\n",
-		version,PROTOCOL_VERSION);
-	exit(1);
-      }
-      write_int(STDOUT_FILENO,PROTOCOL_VERSION);
-      write_flush(STDOUT_FILENO);
+	if (lp_read_only(i))
+		read_only = 1;
+
+	rprintf(FERROR,"rsyncd starting\n");
+
+	if (chroot(lp_path(i))) {
+		io_printf(fd,"ERROR: chroot failed\n");
+		return -1;
+	}
+
+	if (chdir("/")) {
+		io_printf(fd,"ERROR: chdir failed\n");
+		return -1;
+	}
+
+	if (setgid(lp_gid(i))) {
+		io_printf(fd,"ERROR: setgid failed\n");
+		return -1;
+	}
+
+	if (setuid(lp_uid(i))) {
+		io_printf(fd,"ERROR: setuid failed\n");
+		return -1;
+	}
+
+	io_printf(fd,"RSYNCD: OK\n");
+
+	argv[argc++] = "rsyncd";
+
+	while (1) {
+		if (!read_line(fd, line, sizeof(line)-1)) {
+			return -1;
+		}
+
+		if (!*line) break;
+
+		argv[argc] = strdup(line);
+		if (!argv[argc]) {
+			return -1;
+		}
+
+		argc++;
+		if (argc == MAX_ARGS) {
+			return -1;
+		}
+	}
+
+	parse_arguments(argc, argv);
+
+	/* don't allow the logs to be flooded too fast */
+	if (verbose > 1) verbose = 1;
+
+	argc -= optind;
+	argp = argv + optind;
+	optind = 0;
+
+	start_server(fd, fd, argc, argp);
+
+	return 0;
+}
+
+static void send_listing(int fd)
+{
+	int n = lp_numservices();
+	int i;
 	
-      if (sender) {
-	recv_exclude_list(STDIN_FILENO);
-	if (cvs_exclude)
-	  add_cvs_excludes();
-	do_server_sender(argc,argv);
-      } else {
-	do_server_recv(argc,argv);
-      }
-      exit(0);
-    }
+	for (i=0;i<n;i++)
+		if (lp_list(i))
+		    io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
+}
 
-    if (argc < 2) {
-      usage(stderr);
-      exit(1);
-    }
+/* this is called when a socket connection is established to a client
+   and we want to start talking. The setup of the system is done from
+   here */
+static int start_daemon(int fd)
+{
+	char line[1024];
+	char *motd;
+
+	set_socket_options(fd,"SO_KEEPALIVE");
+
+	io_printf(fd,"RSYNCD %d\n", PROTOCOL_VERSION);
+
+	motd = lp_motd_file();
+	if (*motd) {
+		FILE *f = fopen(motd,"r");
+		while (f && !feof(f)) {
+			int len = fread(line, 1, sizeof(line)-1, f);
+			if (len > 0) {
+				line[len] = 0;
+				io_printf(fd,"%s", line);
+			}
+		}
+		if (f) fclose(f);
+		io_printf(fd,"\n");
+	}
 
-    p = strchr(argv[0],':');
-
-    if (p) {
-      sender = 0;
-      *p = 0;
-      shell_machine = argv[0];
-      shell_path = p+1;
-      argc--;
-      argv++;
-    } else {
-      sender = 1;
-
-      p = strchr(argv[argc-1],':');
-      if (!p) {
-	local_server = 1;
-      }
+	/* read a single line indicating the resource that is wanted */
+	while (1) {
+		int i;
+
+		line[0] = 0;
+		if (!read_line(fd, line, sizeof(line)-1)) {
+			return -1;
+		}
+
+		if (!*line || strcmp(line,"#list")==0) {
+			send_listing(fd);
+			return -1;
+		} 
+
+		if (*line == '#') {
+			/* it's some sort of command that I don't understand */
+			io_printf(fd,"ERROR: Unknown command '%s'\n", line);
+			return -1;
+		}
+
+		i = lp_number(line);
+		if (i == -1) {
+			io_printf(fd,"ERROR: Unknown module '%s'\n", line);
+			return -1;
+		}
+
+		return rsync_module(fd, i);
+	}
 
-      if (local_server) {
-	shell_machine = NULL;
-	shell_path = argv[argc-1];
-      } else {
-	*p = 0;
-	shell_machine = argv[argc-1];
-	shell_path = p+1;
-      }
-      argc--;
-    }
+	return 0;
+}
 
-    if (shell_machine) {
-      p = strchr(shell_machine,'@');
-      if (p) {
-	*p = 0;
-	shell_user = shell_machine;
-	shell_machine = p+1;
-      }
-    }
 
-    if (verbose > 3) {
-      fprintf(stderr,"cmd=%s machine=%s user=%s path=%s\n",
-	      shell_cmd?shell_cmd:"",
-	      shell_machine?shell_machine:"",
-	      shell_user?shell_user:"",
-	      shell_path?shell_path:"");
-    }
-    
-    signal(SIGCHLD,SIG_IGN);
-    signal(SIGINT,SIGNAL_CAST sig_int);
+static int daemon_main(void)
+{
+	if (!lp_load(RSYNCD_CONF)) {
+		exit_cleanup(1);
+	}
 
-    if (!sender && argc != 1) {
-      usage(stderr);
-      exit(1);
-    }
+	if (is_a_socket(STDIN_FILENO)) {
+		/* we are running via inetd */
+		return start_daemon(STDIN_FILENO);
+	}
 
-    pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out);
+	become_daemon();
 
-    write_int(f_out,PROTOCOL_VERSION);
-    write_flush(f_out);
-    {
-      int version = read_int(f_in);
-      if (version != PROTOCOL_VERSION) {
-	fprintf(stderr,"protocol version mismatch\n");
-	exit(1);
-      }	
-    }
+	return start_accept_loop(port, start_daemon);
+}
 
-    if (verbose > 3) 
-      fprintf(stderr,"parent=%d child=%d sender=%d recurse=%d\n",
-	      (int)getpid(),pid,sender,recurse);
+int main(int argc,char *argv[])
+{
 
-    if (sender) {
-      if (cvs_exclude)
-	add_cvs_excludes();
-      if (delete_mode) 
-	send_exclude_list(f_out);
-      flist = send_file_list(f_out,recurse,argc,argv);
-      if (verbose > 3) 
-	fprintf(stderr,"file list sent\n");
-      send_files(flist,f_out,f_in);
-      if (verbose > 3)
-	fprintf(stderr,"waiting on %d\n",pid);
-      waitpid(pid, &status, 0);
-      report(-1);
-      exit(status);
-    }
+    signal(SIGUSR1, sigusr1_handler);
+
+    starttime = time(NULL);
+    am_root = (getuid() == 0);
 
-    send_exclude_list(f_out);
+    /* we set a 0 umask so that correct file permissions can be
+       carried across */
+    orig_umask = (int)umask(0);
 
-    flist = recv_file_list(f_in);
-    if (!flist || flist->count == 0) {
-      fprintf(stderr,"nothing to do\n");
-      exit(0);
-    }
+    parse_arguments(argc, argv);
 
-    local_name = get_local_name(flist,argv[0]);
+    argc -= optind;
+    argv += optind;
+    optind = 0;
 
-    if ((pid2=fork()) == 0) {
-      recv_files(f_in,flist,local_name);
-      if (verbose > 1)
-	fprintf(stderr,"receiver read %d\n",read_total());
-      exit(0);
+    signal(SIGCHLD,SIG_IGN);
+    signal(SIGINT,SIGNAL_CAST sig_int);
+    signal(SIGPIPE,SIGNAL_CAST sig_int);
+    signal(SIGHUP,SIGNAL_CAST sig_int);
+
+    if (am_daemon) {
+	    return daemon_main();
     }
 
-    generate_files(f_out,flist,local_name);
+    if (dry_run)
+      verbose = MAX(verbose,1);
 
-    waitpid(pid2, &status2, 0);
+#ifndef SUPPORT_LINKS
+    if (!am_server && preserve_links) {
+	    rprintf(FERROR,"ERROR: symbolic links not supported\n");
+	    exit_cleanup(1);
+    }
+#endif
 
-    report(f_in);
+    if (am_server) {
+	    start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
+    }
 
-    waitpid(pid, &status, 0);
+    if (argc < 2) {
+      usage(FERROR);
+      exit_cleanup(1);
+    }
 
-    return status | status2;
+    return start_client(argc, argv);
 }
+