Added 2 new config options: "pre-xfer exec" and "post-xfer exec".
[rsync/rsync.git] / main.c
diff --git a/main.c b/main.c
index 2b207be..de1c124 100644 (file)
--- a/main.c
+++ b/main.c
@@ -20,8 +20,9 @@
 */
 
 #include "rsync.h"
-
-time_t starttime = 0;
+#if defined CONFIG_LOCALE && defined HAVE_LOCALE_H
+#include <locale.h>
+#endif
 
 extern int verbose;
 extern int dry_run;
@@ -45,11 +46,8 @@ extern int keep_dirlinks;
 extern int preserve_hard_links;
 extern int protocol_version;
 extern int recurse;
-extern int fuzzy_basis;
 extern int relative_paths;
 extern int rsync_port;
-extern int inplace;
-extern int make_backups;
 extern int whole_file;
 extern int read_batch;
 extern int write_batch;
@@ -59,13 +57,12 @@ extern int filesfrom_fd;
 extern pid_t cleanup_child_pid;
 extern struct stats stats;
 extern char *filesfrom_host;
-extern char *partial_dir;
-extern char *basis_dir[];
 extern char *rsync_path;
 extern char *shell_cmd;
 extern char *batch_name;
 
 int local_server = 0;
+struct file_list *the_file_list;
 
 /* There's probably never more than at most 2 outstanding child processes,
  * but set it higher, just in case. */
@@ -76,6 +73,9 @@ struct pid_status {
        int   status;
 } pid_stat_table[MAXCHILDPROCS];
 
+static time_t starttime, endtime;
+static int64 total_read, total_written;
+
 static void show_malloc_stats(void);
 
 /****************************************************************************
@@ -120,12 +120,13 @@ void wait_process(pid_t pid, int *status)
  * the report.  All processes might also generate a set of debug stats, if
  * the verbose level is high enough (this is the only thing that the
  * generator process and the server receiver ever do here). */
-static void report(int f)
+static void handle_stats(int f)
 {
+       endtime = time(NULL);
+
        /* Cache two stats because the read/write code can change it. */
-       int64 total_read = stats.total_read;
-       int64 total_written = stats.total_written;
-       time_t t = time(NULL);
+       total_read = stats.total_read;
+       total_written = stats.total_written;
 
        if (do_stats && verbose > 1) {
                /* These come out from every process */
@@ -157,7 +158,9 @@ static void report(int f)
 
        /* this is the client */
 
-       if (!am_sender) {
+       if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */
+               ; 
+       else if (!am_sender) {
                /* Read the first two in opposite order because the meaning of
                 * read/write swaps when switching from sender to receiver. */
                total_written = read_longint(f);
@@ -178,7 +181,10 @@ static void report(int f)
                        write_longint(batch_fd, stats.flist_xfertime);
                }
        }
+}
 
+static void output_summary(void)
+{
        if (do_stats) {
                rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files);
                rprintf(FINFO,"Number of files transferred: %d\n",
@@ -210,7 +216,7 @@ static void report(int f)
                rprintf(FINFO,
                        "\nsent %.0f bytes  received %.0f bytes  %.2f bytes/sec\n",
                        (double)total_written, (double)total_read,
-                       (total_written + total_read)/(0.5 + (t - starttime)));
+                       (total_written + total_read)/(0.5 + (endtime - starttime)));
                rprintf(FINFO, "total size is %.0f  speedup is %.2f\n",
                        (double)stats.total_size,
                        (double)stats.total_size / (total_written+total_read));
@@ -282,7 +288,7 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
 
                for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) {
                        /* Comparison leaves rooms for server_options(). */
-                       if (argc >= MAX_ARGS - 100) {
+                       if (argc >= MAX_ARGS - MAX_SERVER_ARGS) {
                                rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
                                exit_cleanup(RERR_SYNTAX);
                        }
@@ -429,23 +435,24 @@ static char *get_local_name(struct file_list *flist,char *name)
 
 
 /* This is only called by the sender. */
-static void read_final_goodbye(int f_in, int f_out, int flist_count)
+static void read_final_goodbye(int f_in, int f_out)
 {
        int i;
 
        if (protocol_version < 29)
                i = read_int(f_in);
        else {
-               while ((i = read_int(f_in)) == flist_count
+               while ((i = read_int(f_in)) == the_file_list->count
                    && read_shortint(f_in) == ITEM_IS_NEW) {
                        /* Forward the keep-alive (no-op) to the receiver. */
-                       write_int(f_out, flist_count);
+                       write_int(f_out, the_file_list->count);
                        write_shortint(f_out, ITEM_IS_NEW);
                }
        }
 
        if (i != -1) {
-               rprintf(FERROR, "Invalid packet from generator at end of run.\n");
+               rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n",
+                       i, who_am_i());
                exit_cleanup(RERR_PROTOCOL);
        }
 }
@@ -500,15 +507,16 @@ static void do_server_sender(int f_in, int f_out, int argc,char *argv[])
        if (!flist || flist->count == 0) {
                exit_cleanup(0);
        }
+       the_file_list = flist;
 
        io_start_buffering_in();
        io_start_buffering_out();
 
        send_files(flist,f_out,f_in);
        io_flush(FULL_FLUSH);
-       report(f_out);
+       handle_stats(f_out);
        if (protocol_version >= 24)
-               read_final_goodbye(f_in, f_out, flist->count);
+               read_final_goodbye(f_in, f_out);
        io_flush(FULL_FLUSH);
        exit_cleanup(0);
 }
@@ -518,19 +526,16 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 {
        int pid;
        int status = 0;
-       int error_pipe[2], name_pipe[2];
-       BOOL need_name_pipe = (basis_dir[0] || partial_dir || fuzzy_basis
-                           || (inplace && make_backups)) && !dry_run;
+       int error_pipe[2];
 
        /* The receiving side mustn't obey this, or an existing symlink that
         * points to an identical file won't be replaced by the referent. */
        copy_links = 0;
 
        if (preserve_hard_links)
-               init_hard_links(flist);
+               init_hard_links();
 
-       if (fd_pair(error_pipe) < 0
-           || (need_name_pipe && fd_pair(name_pipe) < 0)) {
+       if (fd_pair(error_pipe) < 0) {
                rsyserr(FERROR, errno, "pipe failed in do_recv");
                exit_cleanup(RERR_IPC);
        }
@@ -544,11 +549,6 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 
        if (pid == 0) {
                close(error_pipe[0]);
-               if (need_name_pipe) {
-                       close(name_pipe[1]);
-                       set_blocking(name_pipe[0]);
-               } else
-                       name_pipe[0] = -1;
                if (f_in != f_out)
                        close(f_out);
 
@@ -558,9 +558,9 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
                /* set place to send errors */
                set_msg_fd_out(error_pipe[1]);
 
-               recv_files(f_in, flist, local_name, name_pipe[0]);
+               recv_files(f_in, flist, local_name);
                io_flush(FULL_FLUSH);
-               report(f_in);
+               handle_stats(f_in);
 
                send_msg(MSG_DONE, "", 0);
                io_flush(FULL_FLUSH);
@@ -574,7 +574,8 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
                        while (read_int(f_in) == flist->count
                            && read_shortint(f_in) == ITEM_IS_NEW) {}
 
-                       rprintf(FERROR, "Invalid packet from server at end of run.\n");
+                       rprintf(FERROR, "Invalid packet at end of run [%s]\n",
+                               who_am_i());
                        exit_cleanup(RERR_PROTOCOL);
                }
 
@@ -587,15 +588,10 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 
        am_generator = 1;
        close_multiplexing_in();
-       if (write_batch)
+       if (write_batch && !am_server)
                stop_write_batch();
 
        close(error_pipe[1]);
-       if (need_name_pipe) {
-               close(name_pipe[0]);
-               set_nonblocking(name_pipe[1]);
-       } else
-               name_pipe[1] = -1;
        if (f_in != f_out)
                close(f_in);
 
@@ -603,9 +599,9 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 
        set_msg_fd_in(error_pipe[0]);
 
-       generate_files(f_out, flist, local_name, name_pipe[1]);
+       generate_files(f_out, flist, local_name);
 
-       report(-1);
+       handle_stats(-1);
        io_flush(FULL_FLUSH);
        if (protocol_version >= 24) {
                /* send a final goodbye message */
@@ -676,6 +672,7 @@ static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
                rprintf(FERROR,"server_recv: recv_file_list error\n");
                exit_cleanup(RERR_FILESELECT);
        }
+       the_file_list = flist;
 
        if (argc > 0) {
                if (strcmp(dir,".")) {
@@ -764,26 +761,27 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
                if (filesfrom_host)
                        filesfrom_fd = f_in;
 
-               if (write_batch)
+               if (write_batch && !am_server)
                        start_write_batch(f_out);
-               if (!read_batch) /* don't write to pipe */
-                       flist = send_file_list(f_out,argc,argv);
+               flist = send_file_list(f_out, argc, argv);
                set_msg_fd_in(-1);
                if (verbose > 3)
                        rprintf(FINFO,"file list sent\n");
+               the_file_list = flist;
 
                io_flush(NORMAL_FLUSH);
                send_files(flist,f_out,f_in);
                io_flush(FULL_FLUSH);
+               handle_stats(-1);
                if (protocol_version >= 24)
-                       read_final_goodbye(f_in, f_out, flist->count);
+                       read_final_goodbye(f_in, f_out);
                if (pid != -1) {
                        if (verbose > 3)
                                rprintf(FINFO,"client_run waiting on %d\n", (int) pid);
                        io_flush(FULL_FLUSH);
                        wait_process(pid, &status);
                }
-               report(-1);
+               output_summary();
                io_flush(FULL_FLUSH);
                exit_cleanup(status);
        }
@@ -801,19 +799,19 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
                filesfrom_fd = -1;
        }
 
-       if (write_batch)
+       if (write_batch && !am_server)
                start_write_batch(f_in);
        flist = recv_file_list(f_in);
-       if (!flist || flist->count == 0) {
-               rprintf(FINFO, "client: nothing to do: "
-                       "perhaps you need to specify some filenames or "
-                       "the --recursive option?\n");
-               exit_cleanup(0);
-       }
+       the_file_list = flist;
 
-       local_name = get_local_name(flist,argv[0]);
+       if (flist && flist->count > 0) {
+               local_name = get_local_name(flist, argv[0]);
 
-       status2 = do_recv(f_in,f_out,flist,local_name);
+               status2 = do_recv(f_in, f_out, flist, local_name);
+       } else {
+               handle_stats(-1);
+               output_summary();
+       }
 
        if (pid != -1) {
                if (verbose > 3)
@@ -866,8 +864,17 @@ static int start_client(int argc, char *argv[])
                return rc;
 
        if (!read_batch) { /* for read_batch, NO source is specified */
+               argc--;
                shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port);
                if (shell_path) { /* source is remote */
+                       char *dummy1;
+                       int dummy2;
+                       if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) {
+                               rprintf(FERROR,
+                                       "The source and destination cannot both be remote.\n");
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+                       argv++;
                        if (filesfrom_host && *filesfrom_host
                            && strcmp(filesfrom_host, shell_machine) != 0) {
                                rprintf(FERROR,
@@ -878,22 +885,21 @@ static int start_client(int argc, char *argv[])
                                if (!shell_cmd) {
                                        return start_socket_client(shell_machine,
                                                                   shell_path,
-                                                                  argc-1, argv+1);
+                                                                  argc, argv);
                                }
                                daemon_over_rsh = 1;
                        }
 
+                       am_sender = 0;
+               } else { /* source is local, check dest arg */
+                       am_sender = 1;
+
                        if (argc < 1) { /* destination required */
                                usage(FERROR);
                                exit_cleanup(RERR_SYNTAX);
                        }
 
-                       am_sender = 0;
-                       argv++;
-               } else { /* source is local, check dest arg */
-                       am_sender = 1;
-
-                       shell_path = check_for_hostspec(argv[argc-1], &shell_machine, &rsync_port);
+                       shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port);
                        if (shell_path && filesfrom_host && *filesfrom_host
                            && strcmp(filesfrom_host, shell_machine) != 0) {
                                rprintf(FERROR,
@@ -908,22 +914,16 @@ static int start_client(int argc, char *argv[])
                                        exit_cleanup(RERR_SYNTAX);
                                }
                                shell_machine = NULL;
-                               shell_path = argv[argc-1];
+                               shell_path = argv[argc];
                        } else if (rsync_port) {
                                if (!shell_cmd) {
                                        return start_socket_client(shell_machine,
                                                                   shell_path,
-                                                                  argc-1, argv);
+                                                                  argc, argv);
                                }
                                daemon_over_rsh = 1;
                        }
-
-                       if (argc < 2) {
-                               usage(FERROR);
-                               exit_cleanup(RERR_SYNTAX);
-                       }
                }
-               argc--;
        } else {  /* read_batch */
                local_server = 1;
                shell_path = argv[argc-1];
@@ -989,8 +989,11 @@ static RETSIGTYPE sigusr1_handler(UNUSED(int val))
 
 static RETSIGTYPE sigusr2_handler(UNUSED(int val))
 {
+       if (!am_server)
+               output_summary();
        close_all();
-       if (log_got_error) _exit(RERR_PARTIAL);
+       if (log_got_error)
+               _exit(RERR_PARTIAL);
        _exit(0);
 }
 
@@ -1115,6 +1118,10 @@ int main(int argc,char *argv[])
         * see the EPIPE. */
        signal(SIGPIPE, SIG_IGN);
 
+#if defined CONFIG_LOCALE && defined HAVE_SETLOCALE
+       setlocale(LC_CTYPE, "");
+#endif
+
        /* Initialize push_dir here because on some old systems getcwd
         * (implemented by forking "pwd" and reading its output) doesn't
         * work when there are other child processes.  Also, on all systems
@@ -1123,7 +1130,7 @@ int main(int argc,char *argv[])
 
        init_flist();
 
-       if (write_batch || read_batch) {
+       if ((write_batch || read_batch) && !am_server) {
                if (write_batch)
                        write_batch_shell_file(orig_argc, orig_argv, argc);
 
@@ -1142,6 +1149,8 @@ int main(int argc,char *argv[])
                if (read_batch)
                        read_stream_flags(batch_fd);
        }
+       if (write_batch < 0)
+               dry_run = 1;
 
        if (am_daemon && !am_server)
                return daemon_main();