X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/3591c0660c52cec9fa06e7539b56604a7499fa10..088aac85971f3f1571c7f90569c95d5025b1fd82:/main.c diff --git a/main.c b/main.c index fc4dc60d..0ed7df38 100644 --- a/main.c +++ b/main.c @@ -1,6 +1,8 @@ -/* - Copyright (C) Andrew Tridgell 1996 +/* -*- c-file-style: "linux" -*- + + Copyright (C) 1996-2001 by Andrew Tridgell Copyright (C) Paul Mackerras 1996 + Copyright (C) 2001, 2002 by Martin Pool 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 @@ -19,194 +21,163 @@ #include "rsync.h" -int verbose = 0; -int always_checksum = 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; -int preserve_gid = 0; -int preserve_times = 0; -int update_only = 0; -int cvs_exclude = 0; -int dry_run=0; -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; -int module_id = -1; - -int rsync_port = RSYNC_PORT; - -static char *shell_cmd; - -extern int csum_length; - -int am_server = 0; -int am_sender=0; -int recurse = 0; -int am_daemon=0; - -static void usage(int fd); + +struct stats stats; + +extern int verbose; + +static void show_malloc_stats(void); + +/**************************************************************************** +wait for a process to exit, calling io_flush while waiting +****************************************************************************/ +void wait_process(pid_t pid, int *status) +{ + while (waitpid(pid, status, WNOHANG) == 0) { + msleep(20); + io_flush(); + } + + /* TODO: If the child exited on a signal, then log an + * appropriate error message. Perhaps we should also accept a + * message describing the purpose of the child. Also indicate + * this to the caller so that thhey know something went + * wrong. */ + *status = WEXITSTATUS(*status); +} static void report(int f) { - int64 in,out,tsize; - time_t t = time(NULL); - - if (!verbose) return; - - 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 (am_sender) { - in = read_total(); - out = write_total(); - tsize = total_size; - } else { - in = read_longint(f); - out = read_longint(f); - tsize = read_longint(f); - } - - 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)); + time_t t = time(NULL); + extern int am_server; + extern int am_sender; + extern int am_daemon; + extern int do_stats; + extern int remote_version; + int send_stats; + + if (do_stats) { + /* These come out from every process */ + show_malloc_stats(); + show_flist_stats(); + } + + if (am_daemon) { + log_exit(0, __FILE__, __LINE__); + if (f == -1 || !am_sender) return; + } + + send_stats = verbose || (remote_version >= 20); + if (am_server) { + if (am_sender && send_stats) { + int64 w; + /* store total_written in a temporary + because write_longint changes it */ + w = stats.total_written; + write_longint(f,stats.total_read); + write_longint(f,w); + write_longint(f,stats.total_size); + } + return; + } + + /* this is the client */ + + if (!am_sender && send_stats) { + int64 r; + stats.total_written = read_longint(f); + /* store total_read in a temporary, read_longint changes it */ + r = read_longint(f); + stats.total_size = read_longint(f); + stats.total_read = r; + } + + if (do_stats) { + if (!am_sender && !send_stats) { + /* missing the bytes written by the generator */ + rprintf(FINFO, "\nCannot show stats as receiver because remote protocol version is less than 20\n"); + rprintf(FINFO, "Use --stats -v to show stats\n"); + return; + } + rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); + rprintf(FINFO,"Number of files transferred: %d\n", + stats.num_transferred_files); + rprintf(FINFO,"Total file size: %.0f bytes\n", + (double)stats.total_size); + rprintf(FINFO,"Total transferred file size: %.0f bytes\n", + (double)stats.total_transferred_size); + rprintf(FINFO,"Literal data: %.0f bytes\n", + (double)stats.literal_data); + rprintf(FINFO,"Matched data: %.0f bytes\n", + (double)stats.matched_data); + rprintf(FINFO,"File list size: %d\n", stats.flist_size); + rprintf(FINFO,"Total bytes written: %.0f\n", + (double)stats.total_written); + rprintf(FINFO,"Total bytes read: %.0f\n\n", + (double)stats.total_read); + } + + if (verbose || do_stats) { + rprintf(FINFO,"wrote %.0f bytes read %.0f bytes %.2f bytes/sec\n", + (double)stats.total_written, + (double)stats.total_read, + (stats.total_written+stats.total_read)/(0.5 + (t-starttime))); + rprintf(FINFO,"total size is %.0f speedup is %.2f\n", + (double)stats.total_size, + (1.0*stats.total_size)/(stats.total_written+stats.total_read)); + } + + fflush(stdout); + fflush(stderr); } -void server_options(char **args,int *argc) +/** + * If our C library can get malloc statistics, then show them to FINFO + **/ +static void show_malloc_stats(void) { - int ac = *argc; - static char argstr[50]; - static char bsize[30]; - static char iotime[30]; - int i, x; - - args[ac++] = "--server"; - - if (!am_sender) - args[ac++] = "--sender"; - - x = 1; - argstr[0] = '-'; - for (i=0;icount > 1) { - rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); - exit_cleanup(1); - } - return name; - } - - if (flist->count == 1) - return name; - - if (!name) - return NULL; - - if (do_mkdir(name,0777 & ~orig_umask) != 0) { - rprintf(FERROR,"mkdir %s : %s (1)\n",name,strerror(errno)); - exit_cleanup(1); - } else { - rprintf(FINFO,"created directory %s\n",name); - } - - if (chdir(name) != 0) { - rprintf(FERROR,"chdir %s : %s (2)\n",name,strerror(errno)); - exit_cleanup(1); - } - - return NULL; + STRUCT_STAT st; + extern int orig_umask; + + if (verbose > 2) + rprintf(FINFO,"get_local_name count=%d %s\n", + flist->count, NS(name)); + + if (!name) + return NULL; + + if (do_stat(name,&st) == 0) { + if (S_ISDIR(st.st_mode)) { + if (!push_dir(name, 0)) { + rprintf(FERROR,"push_dir %s : %s (1)\n", + name,strerror(errno)); + exit_cleanup(RERR_FILESELECT); + } + return NULL; + } + if (flist->count > 1) { + rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); + exit_cleanup(RERR_FILESELECT); + } + return name; + } + + if (flist->count <= 1) + return name; + + if (do_mkdir(name,0777 & ~orig_umask) != 0) { + rprintf(FERROR,"mkdir %s : %s (1)\n",name,strerror(errno)); + exit_cleanup(RERR_FILEIO); + } else { + if (verbose > 0) + rprintf(FINFO,"created directory %s\n",name); + } + + if (!push_dir(name, 0)) { + rprintf(FERROR,"push_dir %s : %s (2)\n", + name,strerror(errno)); + exit_cleanup(RERR_FILESELECT); + } + + return NULL; } @@ -316,185 +301,295 @@ static char *get_local_name(struct file_list *flist,char *name) static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) { - int i; - struct file_list *flist; - char *dir = argv[0]; + int i; + struct file_list *flist; + char *dir = argv[0]; + extern int relative_paths; + extern int recurse; + extern int remote_version; - if (verbose > 2) - rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); + if (verbose > 2) + rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); - if (!relative_paths && chdir(dir) != 0) { - rprintf(FERROR,"chdir %s: %s (3)\n",dir,strerror(errno)); - exit_cleanup(1); - } - argc--; - argv++; + if (!relative_paths && !push_dir(dir, 0)) { + rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); + exit_cleanup(RERR_FILESELECT); + } + argc--; + argv++; - if (strcmp(dir,".")) { - int l = strlen(dir); - if (strcmp(dir,"/") == 0) - l = 0; - for (i=0;icount == 0) { + exit_cleanup(0); + } + + send_files(flist,f_out,f_in); + io_flush(); + report(f_out); + if (remote_version >= 24) { + /* final goodbye message */ + read_int(f_in); + } + io_flush(); + 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]; + int pid; + int status=0; + int recv_pipe[2]; + int error_pipe[2]; + extern int preserve_hard_links; + extern int delete_after; + extern int recurse; + extern int delete_mode; + extern int remote_version; + + if (preserve_hard_links) + init_hard_links(flist); + + if (!delete_after) { + /* I moved this here from recv_files() to prevent a race condition */ + if (recurse && delete_mode && !local_name && flist->count>0) { + delete_files(flist); + } + } - if (preserve_hard_links) - init_hard_links(flist); + if (fd_pair(recv_pipe) < 0) { + rprintf(FERROR,"pipe failed in do_recv\n"); + exit_cleanup(RERR_SOCKETIO); + } - if (pipe(recv_pipe) < 0) { - rprintf(FERROR,"pipe failed in do_recv\n"); - exit(1); - } + if (fd_pair(error_pipe) < 0) { + rprintf(FERROR,"error pipe failed in do_recv\n"); + exit_cleanup(RERR_SOCKETIO); + } + io_flush(); + + if ((pid=do_fork()) == 0) { + close(recv_pipe[0]); + close(error_pipe[0]); + if (f_in != f_out) close(f_out); + + /* we can't let two processes write to the socket at one time */ + io_multiplexing_close(); + + /* set place to send errors */ + set_error_fd(error_pipe[1]); + + recv_files(f_in,flist,local_name,recv_pipe[1]); + io_flush(); + report(f_in); + + write_int(recv_pipe[1],1); + close(recv_pipe[1]); + io_flush(); + /* finally we go to sleep until our parent kills us + with a USR2 signal. We sleep for a short time as on + some OSes a signal won't interrupt a sleep! */ + while (msleep(20)) + ; + } + + close(recv_pipe[1]); + close(error_pipe[1]); + if (f_in != f_out) close(f_in); - 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); - } + io_start_buffering(f_out); - generate_files(f_out,flist,local_name,recv_pipe[0]); + io_set_error_fd(error_pipe[0]); - waitpid(pid, &status, 0); + generate_files(f_out,flist,local_name,recv_pipe[0]); + + read_int(recv_pipe[0]); + close(recv_pipe[0]); + if (remote_version >= 24) { + /* send a final goodbye message */ + write_int(f_out, -1); + } + io_flush(); - return status; + kill(pid, SIGUSR2); + wait_process(pid, &status); + return status; } static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) { - int status; - struct file_list *flist; - char *local_name=NULL; - char *dir = NULL; - - if (verbose > 2) - 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 0) { - 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(f_in); - - flist = recv_file_list(f_in); - if (!flist || flist->count == 0) { - 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]); - } - - status = do_recv(f_in,f_out,flist,local_name); - exit_cleanup(status); + int status; + struct file_list *flist; + char *local_name=NULL; + char *dir = NULL; + extern int delete_mode; + extern int delete_excluded; + extern int am_daemon; + extern int module_id; + extern int am_sender; + extern int read_batch; + extern struct file_list *batch_flist; + + if (verbose > 2) + rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); + + if (am_daemon && lp_read_only(module_id) && !am_sender) { + rprintf(FERROR,"ERROR: module is read only\n"); + exit_cleanup(RERR_SYNTAX); + return; + } + + + if (argc > 0) { + dir = argv[0]; + argc--; + argv++; + if (!am_daemon && !push_dir(dir, 0)) { + rprintf(FERROR,"push_dir %s : %s (4)\n", + dir,strerror(errno)); + exit_cleanup(RERR_FILESELECT); + } + } + + if (delete_mode && !delete_excluded) + recv_exclude_list(f_in); + + if (read_batch) + flist = batch_flist; + else + flist = recv_file_list(f_in); + if (!flist) { + rprintf(FERROR,"server_recv: recv_file_list error\n"); + exit_cleanup(RERR_FILESELECT); + } + + if (argc > 0) { + if (strcmp(dir,".")) { + argv[0] += strlen(dir); + if (argv[0][0] == '/') argv[0]++; + } + local_name = get_local_name(flist,argv[0]); + } + + status = do_recv(f_in,f_out,flist,local_name); + exit_cleanup(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); + extern int cvs_exclude; + extern int am_sender; + extern int remote_version; + extern int read_batch; + + setup_protocol(f_out, f_in); + + set_nonblocking(f_in); + set_nonblocking(f_out); + + if (remote_version >= 23) + io_start_multiplex_out(f_out); + + if (am_sender) { + if (!read_batch) { + 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); } -int client_run(int f_in, int f_out, int pid, int argc, char *argv[]) + +/* + * This is called once the connection has been negotiated. It is used + * for rsyncd, remote-shell, and local connections. + */ +int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) { - struct file_list *flist; + struct file_list *flist = NULL; int status = 0, status2 = 0; char *local_name = NULL; + extern int am_sender; + extern int remote_version; + extern pid_t cleanup_child_pid; + extern int write_batch; + extern int read_batch; + extern struct file_list *batch_flist; + + cleanup_child_pid = pid; + if (read_batch) + flist = batch_flist; + + set_nonblocking(f_in); + set_nonblocking(f_out); setup_protocol(f_out,f_in); + + if (remote_version >= 23) + io_start_multiplex_in(f_in); if (am_sender) { + extern int cvs_exclude; + extern int delete_mode; + extern int delete_excluded; if (cvs_exclude) add_cvs_excludes(); - if (delete_mode) + if (delete_mode && !delete_excluded) send_exclude_list(f_out); - flist = send_file_list(f_out,argc,argv); + if (!read_batch) /* dw -- don't write to pipe */ + 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 (remote_version >= 24) { + /* final goodbye message */ + read_int(f_in); + } if (pid != -1) { if (verbose > 3) - rprintf(FINFO,"waiting on %d\n",pid); - waitpid(pid, &status, 0); + rprintf(FINFO,"client_run waiting on %d\n", (int) pid); + io_flush(); + wait_process(pid, &status); } report(-1); exit_cleanup(status); } + + if (argc == 0) { + extern int list_only; + list_only = 1; + } - send_exclude_list(f_out); + if (!write_batch) + send_exclude_list(f_out); flist = recv_file_list(f_in); if (!flist || flist->count == 0) { - rprintf(FINFO,"nothing to do\n"); + rprintf(FINFO, "client: nothing to do: " + "perhaps you need to specify some filenames or " + "the --recursive option?\n"); exit_cleanup(0); } @@ -502,26 +597,97 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[]) status2 = do_recv(f_in,f_out,flist,local_name); - report(f_in); - if (pid != -1) { - waitpid(pid, &status, 0); + if (verbose > 3) + rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); + io_flush(); + wait_process(pid, &status); } - return status | status2; + return MAX(status, status2); } +static char *find_colon(char *s) +{ + char *p, *p2; -int start_client(int argc, char *argv[]) + p = strchr(s,':'); + if (!p) return NULL; + + /* now check to see if there is a / in the string before the : - if there is then + discard the colon on the assumption that the : is part of a filename */ + p2 = strchr(s,'/'); + if (p2 && p2 < p) return NULL; + + return p; +} + + +static int copy_argv (char *argv[]) +{ + int i; + + for (i = 0; argv[i]; i++) { + if (!(argv[i] = strdup(argv[i]))) { + rprintf (FERROR, "out of memory at %s(%d)\n", + __FILE__, __LINE__); + return RERR_MALLOC; + } + } + + return 0; +} + + +/* + * Start a client for either type of remote connection. Work out + * whether the arguments request a remote shell or rsyncd connection, + * and call the appropriate connection function, then run_client. + */ +static int start_client(int argc, char *argv[]) { char *p; char *shell_machine = NULL; char *shell_path = NULL; char *shell_user = NULL; - int pid; + int ret; + pid_t pid; int f_in,f_out; + extern int local_server; + extern int am_sender; + extern char *shell_cmd; + extern int rsync_port; + extern int whole_file; + extern int write_batch; + extern int read_batch; + int rc; + + /* Don't clobber argv[] so that ps(1) can still show the right + command line. */ + if ((rc = copy_argv (argv))) + return rc; + + if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { + char *host, *path; + + host = argv[0] + strlen(URL_PREFIX); + p = strchr(host,'/'); + if (p) { + *p = 0; + path = p+1; + } else { + path=""; + } + p = strchr(host,':'); + if (p) { + rsync_port = atoi(p+1); + *p = 0; + } + return start_socket_client(host, path, argc-1, argv+1); + } - p = strchr(argv[0],':'); + if (!read_batch) { + p = find_colon(argv[0]); if (p) { if (p[1] == ':') { @@ -529,9 +695,9 @@ int start_client(int argc, char *argv[]) return start_socket_client(argv[0], p+2, argc-1, argv+1); } - if (argc < 2) { + if (argc < 1) { usage(FERROR); - exit_cleanup(1); + exit_cleanup(RERR_SYNTAX); } am_sender = 0; @@ -543,9 +709,15 @@ int start_client(int argc, char *argv[]) } else { am_sender = 1; - p = strchr(argv[argc-1],':'); + p = find_colon(argv[argc-1]); if (!p) { local_server = 1; + /* + * disable "rsync algorithm" when both sides local, + * except when creating a batch update + */ + if (!write_batch && whole_file == -1) + whole_file = 1; } else if (p[1] == ':') { *p = 0; return start_socket_client(argv[argc-1], p+2, argc-1, argv); @@ -553,7 +725,7 @@ int start_client(int argc, char *argv[]) if (argc < 2) { usage(FERROR); - exit_cleanup(1); + exit_cleanup(RERR_SYNTAX); } if (local_server) { @@ -566,7 +738,12 @@ int start_client(int argc, char *argv[]) } argc--; } - + } else { + am_sender = 1; + local_server = 1; + shell_path = argv[argc-1]; + } + if (shell_machine) { p = strchr(shell_machine,'@'); if (p) { @@ -584,351 +761,127 @@ int start_client(int argc, char *argv[]) shell_path?shell_path:""); } - if (!am_sender && argc != 1) { + if (!am_sender && argc > 1) { usage(FERROR); - exit_cleanup(1); + exit_cleanup(RERR_SYNTAX); + } + + if (argc == 0 && !am_sender) { + extern int list_only; + list_only = 1; } pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out); -#if HAVE_SETLINEBUF - setlinebuf(stdout); - setlinebuf(stderr); -#endif + ret = client_run(f_in, f_out, pid, argc, argv); + + fflush(stdout); + fflush(stderr); - return client_run(f_in, f_out, pid, argc, argv); + return ret; } -static void usage(int F) -{ - rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n", - VERSION); - 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); +static RETSIGTYPE sigusr1_handler(int val) { + exit_cleanup(RERR_SIGNAL); } -enum {OPT_VERSION,OPT_SUFFIX,OPT_SENDER,OPT_SERVER,OPT_EXCLUDE, - OPT_EXCLUDE_FROM,OPT_DELETE,OPT_NUMERIC_IDS,OPT_RSYNC_PATH, - OPT_FORCE,OPT_TIMEOUT,OPT_DAEMON}; - -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}, - {"one-file-system",0, 0, 'x'}, - {"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'}, - {"backup", 0, 0, 'b'}, - {"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}}; - -RETSIGTYPE sigusr1_handler(int val) { - exit_cleanup(1); +static RETSIGTYPE sigusr2_handler(int val) { + extern int log_got_error; + if (log_got_error) _exit(RERR_PARTIAL); + _exit(0); } - -void parse_arguments(int argc, char *argv[]) -{ - int opt; - int option_index; - - while ((opt = getopt_long(argc, argv, - short_options, long_options, &option_index)) - != -1) { - switch (opt) - { - case OPT_VERSION: - printf("rsync version %s protocol version %d\n", - VERSION,PROTOCOL_VERSION); - exit_cleanup(0); - - case OPT_SUFFIX: - backup_suffix = optarg; - break; - - case OPT_RSYNC_PATH: - rsync_path = optarg; - break; - - case 'I': - ignore_times = 1; - break; - - case 'x': - one_file_system=1; - break; - - case OPT_DELETE: - 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; - - case OPT_EXCLUDE_FROM: - add_exclude_file(optarg,1); - break; - - case 'h': - usage(FINFO); - exit_cleanup(0); - - case 'b': - make_backups=1; - break; - - case 'n': - dry_run=1; - break; - - case 'S': - sparse_files=1; - break; - - case 'C': - cvs_exclude=1; - break; - - case 'u': - update_only=1; - break; - - 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); +static RETSIGTYPE sigchld_handler(int val) { +#ifdef WNOHANG + while (waitpid(-1, NULL, WNOHANG) > 0) ; #endif - break; - - case 'p': - preserve_perms=1; - break; - - case 'o': - preserve_uid=1; - break; - - case 'g': - preserve_gid=1; - break; - - case 'D': - preserve_devices=1; - break; - - case 't': - preserve_times=1; - break; - - case 'c': - always_checksum=1; - break; - - case 'v': - verbose++; - break; - - case 'a': - recurse=1; -#if SUPPORT_LINKS - preserve_links=1; -#endif - preserve_perms=1; - preserve_times=1; - preserve_gid=1; - if (am_root) { - preserve_devices=1; - preserve_uid=1; - } - break; - - case OPT_SERVER: - am_server = 1; - break; - - case OPT_SENDER: - if (!am_server) { - usage(FERROR); - exit_cleanup(1); - } - am_sender = 1; - break; - - case 'r': - recurse = 1; - break; - - case 'R': - relative_paths = 1; - break; - - case 'e': - shell_cmd = optarg; - break; - - case 'B': - 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: - /* rprintf(FERROR,"bad option -%c\n",opt); */ - exit_cleanup(1); - } - } } int main(int argc,char *argv[]) -{ +{ + extern int am_root; + extern int orig_umask; + extern int dry_run; + extern int am_daemon; + extern int am_server; + int ret; + extern int write_batch; + int orig_argc; + char **orig_argv; + + orig_argc = argc; + orig_argv = argv; + + signal(SIGUSR1, sigusr1_handler); + signal(SIGUSR2, sigusr2_handler); + signal(SIGCHLD, sigchld_handler); + + starttime = time(NULL); + am_root = (getuid() == 0); + + memset(&stats, 0, sizeof(stats)); + + if (argc < 2) { + usage(FERROR); + exit_cleanup(RERR_SYNTAX); + } - signal(SIGUSR1, sigusr1_handler); + /* we set a 0 umask so that correct file permissions can be + carried across */ + orig_umask = (int)umask(0); - starttime = time(NULL); - am_root = (getuid() == 0); + if (!parse_arguments(&argc, (const char ***) &argv, 1)) { + /* FIXME: We ought to call the same error-handling + * code here, rather than relying on getopt. */ + option_error(); + exit_cleanup(RERR_SYNTAX); + } - /* we set a 0 umask so that correct file permissions can be - carried across */ - orig_umask = (int)umask(0); + signal(SIGINT,SIGNAL_CAST sig_int); + signal(SIGPIPE,SIGNAL_CAST sig_int); + signal(SIGHUP,SIGNAL_CAST sig_int); + signal(SIGTERM,SIGNAL_CAST sig_int); - parse_arguments(argc, argv); + /* 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 + that implement getcwd that way "pwd" can't be found after chroot. */ + push_dir(NULL,0); - argc -= optind; - argv += optind; - optind = 0; + if (write_batch && !am_server) { + write_batch_argvs_file(orig_argc, orig_argv); + } - 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(); + } - if (am_daemon) { - return daemon_main(); - } + if (argc < 1) { + usage(FERROR); + exit_cleanup(RERR_SYNTAX); + } - if (dry_run) - verbose = MAX(verbose,1); + if (dry_run) + verbose = MAX(verbose,1); #ifndef SUPPORT_LINKS - if (!am_server && preserve_links) { - rprintf(FERROR,"ERROR: symbolic links not supported\n"); - exit_cleanup(1); - } + if (!am_server && preserve_links) { + rprintf(FERROR,"ERROR: symbolic links not supported\n"); + exit_cleanup(RERR_UNSUPPORTED); + } #endif - if (am_server) { - start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); - } + if (am_server) { + set_nonblocking(STDIN_FILENO); + set_nonblocking(STDOUT_FILENO); + start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); + } - return start_client(argc, argv); + ret = start_client(argc, argv); + if (ret == -1) + exit_cleanup(RERR_STARTCLIENT); + else + exit_cleanup(ret); + return ret; } -