| 1 | /* |
| 2 | Copyright (C) Andrew Tridgell 1996 |
| 3 | Copyright (C) Paul Mackerras 1996 |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | |
| 20 | #include "rsync.h" |
| 21 | |
| 22 | time_t starttime = 0; |
| 23 | |
| 24 | struct stats stats; |
| 25 | |
| 26 | extern int verbose; |
| 27 | |
| 28 | static void report(int f) |
| 29 | { |
| 30 | time_t t = time(NULL); |
| 31 | extern int am_server; |
| 32 | extern int am_sender; |
| 33 | extern int am_daemon; |
| 34 | extern int do_stats; |
| 35 | extern int remote_version; |
| 36 | int send_stats; |
| 37 | |
| 38 | if (am_daemon) { |
| 39 | log_exit(0, __FILE__, __LINE__); |
| 40 | if (f == -1 || !am_sender) return; |
| 41 | } |
| 42 | |
| 43 | send_stats = verbose || (remote_version >= 20); |
| 44 | if (am_server) { |
| 45 | if (am_sender && send_stats) { |
| 46 | int64 w; |
| 47 | /* store total_written in a temporary |
| 48 | because write_longint changes it */ |
| 49 | w = stats.total_written; |
| 50 | write_longint(f,stats.total_read); |
| 51 | write_longint(f,w); |
| 52 | write_longint(f,stats.total_size); |
| 53 | } |
| 54 | return; |
| 55 | } |
| 56 | |
| 57 | /* this is the client */ |
| 58 | |
| 59 | if (!am_sender && send_stats) { |
| 60 | int64 r; |
| 61 | stats.total_written = read_longint(f); |
| 62 | /* store total_read in a temporary, read_longint changes it */ |
| 63 | r = read_longint(f); |
| 64 | stats.total_size = read_longint(f); |
| 65 | stats.total_read = r; |
| 66 | } |
| 67 | |
| 68 | if (do_stats) { |
| 69 | if (!am_sender && !send_stats) { |
| 70 | /* missing the bytes written by the generator */ |
| 71 | rprintf(FINFO, "\nCannot show stats as receiver because remote protocol version is less than 20\n"); |
| 72 | rprintf(FINFO, "Use --stats -v to show stats\n"); |
| 73 | return; |
| 74 | } |
| 75 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
| 76 | rprintf(FINFO,"Number of files transferred: %d\n", |
| 77 | stats.num_transferred_files); |
| 78 | rprintf(FINFO,"Total file size: %.0f bytes\n", |
| 79 | (double)stats.total_size); |
| 80 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", |
| 81 | (double)stats.total_transferred_size); |
| 82 | rprintf(FINFO,"Literal data: %.0f bytes\n", |
| 83 | (double)stats.literal_data); |
| 84 | rprintf(FINFO,"Matched data: %.0f bytes\n", |
| 85 | (double)stats.matched_data); |
| 86 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
| 87 | rprintf(FINFO,"Total bytes written: %.0f\n", |
| 88 | (double)stats.total_written); |
| 89 | rprintf(FINFO,"Total bytes read: %.0f\n\n", |
| 90 | (double)stats.total_read); |
| 91 | } |
| 92 | |
| 93 | if (verbose || do_stats) { |
| 94 | rprintf(FINFO,"wrote %.0f bytes read %.0f bytes %.2f bytes/sec\n", |
| 95 | (double)stats.total_written, |
| 96 | (double)stats.total_read, |
| 97 | (stats.total_written+stats.total_read)/(0.5 + (t-starttime))); |
| 98 | rprintf(FINFO,"total size is %.0f speedup is %.2f\n", |
| 99 | (double)stats.total_size, |
| 100 | (1.0*stats.total_size)/(stats.total_written+stats.total_read)); |
| 101 | } |
| 102 | |
| 103 | fflush(stdout); |
| 104 | fflush(stderr); |
| 105 | } |
| 106 | |
| 107 | |
| 108 | static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out) |
| 109 | { |
| 110 | char *args[100]; |
| 111 | int i,argc=0, ret; |
| 112 | char *tok,*dir=NULL; |
| 113 | extern int local_server; |
| 114 | extern char *rsync_path; |
| 115 | |
| 116 | if (!local_server) { |
| 117 | if (!cmd) |
| 118 | cmd = getenv(RSYNC_RSH_ENV); |
| 119 | if (!cmd) |
| 120 | cmd = RSYNC_RSH; |
| 121 | cmd = strdup(cmd); |
| 122 | if (!cmd) |
| 123 | goto oom; |
| 124 | |
| 125 | for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { |
| 126 | args[argc++] = tok; |
| 127 | } |
| 128 | |
| 129 | #if HAVE_REMSH |
| 130 | /* remsh (on HPUX) takes the arguments the other way around */ |
| 131 | args[argc++] = machine; |
| 132 | if (user) { |
| 133 | args[argc++] = "-l"; |
| 134 | args[argc++] = user; |
| 135 | } |
| 136 | #else |
| 137 | if (user) { |
| 138 | args[argc++] = "-l"; |
| 139 | args[argc++] = user; |
| 140 | } |
| 141 | args[argc++] = machine; |
| 142 | #endif |
| 143 | |
| 144 | args[argc++] = rsync_path; |
| 145 | |
| 146 | server_options(args,&argc); |
| 147 | } |
| 148 | |
| 149 | args[argc++] = "."; |
| 150 | |
| 151 | if (path && *path) |
| 152 | args[argc++] = path; |
| 153 | |
| 154 | args[argc] = NULL; |
| 155 | |
| 156 | if (verbose > 3) { |
| 157 | rprintf(FINFO,"cmd="); |
| 158 | for (i=0;i<argc;i++) |
| 159 | rprintf(FINFO,"%s ",args[i]); |
| 160 | rprintf(FINFO,"\n"); |
| 161 | } |
| 162 | |
| 163 | if (local_server) { |
| 164 | ret = local_child(argc, args, f_in, f_out); |
| 165 | } else { |
| 166 | ret = piped_child(args,f_in,f_out); |
| 167 | } |
| 168 | |
| 169 | if (dir) free(dir); |
| 170 | |
| 171 | return ret; |
| 172 | |
| 173 | oom: |
| 174 | out_of_memory("do_cmd"); |
| 175 | return 0; /* not reached */ |
| 176 | } |
| 177 | |
| 178 | |
| 179 | |
| 180 | |
| 181 | static char *get_local_name(struct file_list *flist,char *name) |
| 182 | { |
| 183 | STRUCT_STAT st; |
| 184 | extern int orig_umask; |
| 185 | |
| 186 | if (verbose > 2) |
| 187 | rprintf(FINFO,"get_local_name count=%d %s\n", |
| 188 | flist->count, NS(name)); |
| 189 | |
| 190 | if (!name) |
| 191 | return NULL; |
| 192 | |
| 193 | if (do_stat(name,&st) == 0) { |
| 194 | if (S_ISDIR(st.st_mode)) { |
| 195 | if (!push_dir(name, 0)) { |
| 196 | rprintf(FERROR,"push_dir %s : %s (1)\n", |
| 197 | name,strerror(errno)); |
| 198 | exit_cleanup(RERR_FILESELECT); |
| 199 | } |
| 200 | return NULL; |
| 201 | } |
| 202 | if (flist->count > 1) { |
| 203 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); |
| 204 | exit_cleanup(RERR_FILESELECT); |
| 205 | } |
| 206 | return name; |
| 207 | } |
| 208 | |
| 209 | if (flist->count <= 1) |
| 210 | return name; |
| 211 | |
| 212 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
| 213 | rprintf(FERROR,"mkdir %s : %s (1)\n",name,strerror(errno)); |
| 214 | exit_cleanup(RERR_FILEIO); |
| 215 | } else { |
| 216 | if (verbose > 0) |
| 217 | rprintf(FINFO,"created directory %s\n",name); |
| 218 | } |
| 219 | |
| 220 | if (!push_dir(name, 0)) { |
| 221 | rprintf(FERROR,"push_dir %s : %s (2)\n", |
| 222 | name,strerror(errno)); |
| 223 | exit_cleanup(RERR_FILESELECT); |
| 224 | } |
| 225 | |
| 226 | return NULL; |
| 227 | } |
| 228 | |
| 229 | |
| 230 | |
| 231 | |
| 232 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
| 233 | { |
| 234 | int i; |
| 235 | struct file_list *flist; |
| 236 | char *dir = argv[0]; |
| 237 | extern int relative_paths; |
| 238 | extern int recurse; |
| 239 | |
| 240 | if (verbose > 2) |
| 241 | rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); |
| 242 | |
| 243 | if (!relative_paths && !push_dir(dir, 0)) { |
| 244 | rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); |
| 245 | exit_cleanup(RERR_FILESELECT); |
| 246 | } |
| 247 | argc--; |
| 248 | argv++; |
| 249 | |
| 250 | if (strcmp(dir,".")) { |
| 251 | int l = strlen(dir); |
| 252 | if (strcmp(dir,"/") == 0) |
| 253 | l = 0; |
| 254 | for (i=0;i<argc;i++) |
| 255 | argv[i] += l+1; |
| 256 | } |
| 257 | |
| 258 | if (argc == 0 && recurse) { |
| 259 | argc=1; |
| 260 | argv--; |
| 261 | argv[0] = "."; |
| 262 | } |
| 263 | |
| 264 | flist = send_file_list(f_out,argc,argv); |
| 265 | if (!flist || flist->count == 0) { |
| 266 | exit_cleanup(0); |
| 267 | } |
| 268 | |
| 269 | send_files(flist,f_out,f_in); |
| 270 | report(f_out); |
| 271 | io_flush(); |
| 272 | exit_cleanup(0); |
| 273 | } |
| 274 | |
| 275 | |
| 276 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
| 277 | { |
| 278 | int pid; |
| 279 | int status=0; |
| 280 | int recv_pipe[2]; |
| 281 | int error_pipe[2]; |
| 282 | extern int preserve_hard_links; |
| 283 | extern int delete_after; |
| 284 | extern int recurse; |
| 285 | extern int delete_mode; |
| 286 | extern int remote_version; |
| 287 | |
| 288 | if (preserve_hard_links) |
| 289 | init_hard_links(flist); |
| 290 | |
| 291 | if (!delete_after) { |
| 292 | /* I moved this here from recv_files() to prevent a race condition */ |
| 293 | if (recurse && delete_mode && !local_name && flist->count>0) { |
| 294 | delete_files(flist); |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | if (fd_pair(recv_pipe) < 0) { |
| 299 | rprintf(FERROR,"pipe failed in do_recv\n"); |
| 300 | exit_cleanup(RERR_SOCKETIO); |
| 301 | } |
| 302 | |
| 303 | if (fd_pair(error_pipe) < 0) { |
| 304 | rprintf(FERROR,"error pipe failed in do_recv\n"); |
| 305 | exit_cleanup(RERR_SOCKETIO); |
| 306 | } |
| 307 | |
| 308 | io_flush(); |
| 309 | |
| 310 | if ((pid=do_fork()) == 0) { |
| 311 | close(recv_pipe[0]); |
| 312 | close(error_pipe[0]); |
| 313 | if (f_in != f_out) close(f_out); |
| 314 | |
| 315 | /* we can't let two processes write to the socket at one time */ |
| 316 | io_multiplexing_close(); |
| 317 | |
| 318 | /* set place to send errors */ |
| 319 | set_error_fd(error_pipe[1]); |
| 320 | |
| 321 | recv_files(f_in,flist,local_name,recv_pipe[1]); |
| 322 | report(f_in); |
| 323 | |
| 324 | write_int(recv_pipe[1],1); |
| 325 | close(recv_pipe[1]); |
| 326 | io_flush(); |
| 327 | /* finally we go to sleep until our parent kills us with |
| 328 | a USR2 signal */ |
| 329 | while (1) sleep(60); |
| 330 | } |
| 331 | |
| 332 | close(recv_pipe[1]); |
| 333 | close(error_pipe[1]); |
| 334 | io_close_input(f_in); |
| 335 | if (f_in != f_out) close(f_in); |
| 336 | |
| 337 | io_start_buffering(f_out); |
| 338 | |
| 339 | io_set_error_fd(error_pipe[0]); |
| 340 | |
| 341 | generate_files(f_out,flist,local_name,recv_pipe[0]); |
| 342 | |
| 343 | read_int(recv_pipe[0]); |
| 344 | close(recv_pipe[0]); |
| 345 | if (remote_version >= 24) { |
| 346 | /* send a final goodbye message */ |
| 347 | write_int(f_out, -1); |
| 348 | } |
| 349 | io_flush(); |
| 350 | |
| 351 | kill(pid, SIGUSR2); |
| 352 | wait_process(pid, &status); |
| 353 | return status; |
| 354 | } |
| 355 | |
| 356 | |
| 357 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
| 358 | { |
| 359 | int status; |
| 360 | struct file_list *flist; |
| 361 | char *local_name=NULL; |
| 362 | char *dir = NULL; |
| 363 | extern int delete_mode; |
| 364 | extern int delete_excluded; |
| 365 | extern int am_daemon; |
| 366 | extern int module_id; |
| 367 | extern int am_sender; |
| 368 | |
| 369 | if (verbose > 2) |
| 370 | rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); |
| 371 | |
| 372 | if (am_daemon && lp_read_only(module_id) && !am_sender) { |
| 373 | rprintf(FERROR,"ERROR: module is read only\n"); |
| 374 | exit_cleanup(RERR_SYNTAX); |
| 375 | return; |
| 376 | } |
| 377 | |
| 378 | |
| 379 | if (argc > 0) { |
| 380 | dir = argv[0]; |
| 381 | argc--; |
| 382 | argv++; |
| 383 | if (!am_daemon && !push_dir(dir, 0)) { |
| 384 | rprintf(FERROR,"push_dir %s : %s (4)\n", |
| 385 | dir,strerror(errno)); |
| 386 | exit_cleanup(RERR_FILESELECT); |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | if (delete_mode && !delete_excluded) |
| 391 | recv_exclude_list(f_in); |
| 392 | |
| 393 | flist = recv_file_list(f_in); |
| 394 | if (!flist) { |
| 395 | rprintf(FERROR,"server_recv: recv_file_list error\n"); |
| 396 | exit_cleanup(RERR_FILESELECT); |
| 397 | } |
| 398 | |
| 399 | if (argc > 0) { |
| 400 | if (strcmp(dir,".")) { |
| 401 | argv[0] += strlen(dir); |
| 402 | if (argv[0][0] == '/') argv[0]++; |
| 403 | } |
| 404 | local_name = get_local_name(flist,argv[0]); |
| 405 | } |
| 406 | |
| 407 | status = do_recv(f_in,f_out,flist,local_name); |
| 408 | exit_cleanup(status); |
| 409 | } |
| 410 | |
| 411 | |
| 412 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
| 413 | { |
| 414 | extern int cvs_exclude; |
| 415 | extern int am_sender; |
| 416 | extern int remote_version; |
| 417 | |
| 418 | setup_protocol(f_out, f_in); |
| 419 | |
| 420 | set_nonblocking(f_in); |
| 421 | set_nonblocking(f_out); |
| 422 | |
| 423 | if (remote_version >= 23) |
| 424 | io_start_multiplex_out(f_out); |
| 425 | |
| 426 | if (am_sender) { |
| 427 | recv_exclude_list(f_in); |
| 428 | if (cvs_exclude) |
| 429 | add_cvs_excludes(); |
| 430 | do_server_sender(f_in, f_out, argc, argv); |
| 431 | } else { |
| 432 | do_server_recv(f_in, f_out, argc, argv); |
| 433 | } |
| 434 | exit_cleanup(0); |
| 435 | } |
| 436 | |
| 437 | int client_run(int f_in, int f_out, int pid, int argc, char *argv[]) |
| 438 | { |
| 439 | struct file_list *flist; |
| 440 | int status = 0, status2 = 0; |
| 441 | char *local_name = NULL; |
| 442 | extern int am_sender; |
| 443 | extern int list_only; |
| 444 | extern int remote_version; |
| 445 | |
| 446 | set_nonblocking(f_in); |
| 447 | set_nonblocking(f_out); |
| 448 | |
| 449 | setup_protocol(f_out,f_in); |
| 450 | |
| 451 | if (remote_version >= 23) |
| 452 | io_start_multiplex_in(f_in); |
| 453 | |
| 454 | if (am_sender) { |
| 455 | extern int cvs_exclude; |
| 456 | extern int delete_mode; |
| 457 | extern int delete_excluded; |
| 458 | if (cvs_exclude) |
| 459 | add_cvs_excludes(); |
| 460 | if (delete_mode && !delete_excluded) |
| 461 | send_exclude_list(f_out); |
| 462 | flist = send_file_list(f_out,argc,argv); |
| 463 | if (verbose > 3) |
| 464 | rprintf(FINFO,"file list sent\n"); |
| 465 | |
| 466 | send_files(flist,f_out,f_in); |
| 467 | if (pid != -1) { |
| 468 | if (verbose > 3) |
| 469 | rprintf(FINFO,"client_run waiting on %d\n",pid); |
| 470 | io_flush(); |
| 471 | wait_process(pid, &status); |
| 472 | } |
| 473 | report(-1); |
| 474 | if (remote_version >= 24) { |
| 475 | /* final goodbye message */ |
| 476 | read_int(f_in); |
| 477 | } |
| 478 | exit_cleanup(status); |
| 479 | } |
| 480 | |
| 481 | if (argc == 0) list_only = 1; |
| 482 | |
| 483 | send_exclude_list(f_out); |
| 484 | |
| 485 | flist = recv_file_list(f_in); |
| 486 | if (!flist || flist->count == 0) { |
| 487 | rprintf(FINFO,"client: nothing to do\n"); |
| 488 | exit_cleanup(0); |
| 489 | } |
| 490 | |
| 491 | local_name = get_local_name(flist,argv[0]); |
| 492 | |
| 493 | status2 = do_recv(f_in,f_out,flist,local_name); |
| 494 | |
| 495 | if (pid != -1) { |
| 496 | if (verbose > 3) |
| 497 | rprintf(FINFO,"client_run2 waiting on %d\n",pid); |
| 498 | io_flush(); |
| 499 | wait_process(pid, &status); |
| 500 | } |
| 501 | |
| 502 | return status | status2; |
| 503 | } |
| 504 | |
| 505 | static char *find_colon(char *s) |
| 506 | { |
| 507 | char *p, *p2; |
| 508 | |
| 509 | p = strchr(s,':'); |
| 510 | if (!p) return NULL; |
| 511 | |
| 512 | /* now check to see if there is a / in the string before the : - if there is then |
| 513 | discard the colon on the assumption that the : is part of a filename */ |
| 514 | p2 = strchr(s,'/'); |
| 515 | if (p2 && p2 < p) return NULL; |
| 516 | |
| 517 | return p; |
| 518 | } |
| 519 | |
| 520 | static int start_client(int argc, char *argv[]) |
| 521 | { |
| 522 | char *p; |
| 523 | char *shell_machine = NULL; |
| 524 | char *shell_path = NULL; |
| 525 | char *shell_user = NULL; |
| 526 | int pid, ret; |
| 527 | int f_in,f_out; |
| 528 | extern int local_server; |
| 529 | extern int am_sender; |
| 530 | extern char *shell_cmd; |
| 531 | extern int rsync_port; |
| 532 | |
| 533 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { |
| 534 | char *host, *path; |
| 535 | |
| 536 | host = argv[0] + strlen(URL_PREFIX); |
| 537 | p = strchr(host,'/'); |
| 538 | if (p) { |
| 539 | *p = 0; |
| 540 | path = p+1; |
| 541 | } else { |
| 542 | path=""; |
| 543 | } |
| 544 | p = strchr(host,':'); |
| 545 | if (p) { |
| 546 | rsync_port = atoi(p+1); |
| 547 | *p = 0; |
| 548 | } |
| 549 | return start_socket_client(host, path, argc-1, argv+1); |
| 550 | } |
| 551 | |
| 552 | p = find_colon(argv[0]); |
| 553 | |
| 554 | if (p) { |
| 555 | if (p[1] == ':') { |
| 556 | *p = 0; |
| 557 | return start_socket_client(argv[0], p+2, argc-1, argv+1); |
| 558 | } |
| 559 | |
| 560 | if (argc < 1) { |
| 561 | usage(FERROR); |
| 562 | exit_cleanup(RERR_SYNTAX); |
| 563 | } |
| 564 | |
| 565 | am_sender = 0; |
| 566 | *p = 0; |
| 567 | shell_machine = argv[0]; |
| 568 | shell_path = p+1; |
| 569 | argc--; |
| 570 | argv++; |
| 571 | } else { |
| 572 | am_sender = 1; |
| 573 | |
| 574 | p = find_colon(argv[argc-1]); |
| 575 | if (!p) { |
| 576 | local_server = 1; |
| 577 | } else if (p[1] == ':') { |
| 578 | *p = 0; |
| 579 | return start_socket_client(argv[argc-1], p+2, argc-1, argv); |
| 580 | } |
| 581 | |
| 582 | if (argc < 2) { |
| 583 | usage(FERROR); |
| 584 | exit_cleanup(RERR_SYNTAX); |
| 585 | } |
| 586 | |
| 587 | if (local_server) { |
| 588 | shell_machine = NULL; |
| 589 | shell_path = argv[argc-1]; |
| 590 | } else { |
| 591 | *p = 0; |
| 592 | shell_machine = argv[argc-1]; |
| 593 | shell_path = p+1; |
| 594 | } |
| 595 | argc--; |
| 596 | } |
| 597 | |
| 598 | if (shell_machine) { |
| 599 | p = strchr(shell_machine,'@'); |
| 600 | if (p) { |
| 601 | *p = 0; |
| 602 | shell_user = shell_machine; |
| 603 | shell_machine = p+1; |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | if (verbose > 3) { |
| 608 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
| 609 | shell_cmd?shell_cmd:"", |
| 610 | shell_machine?shell_machine:"", |
| 611 | shell_user?shell_user:"", |
| 612 | shell_path?shell_path:""); |
| 613 | } |
| 614 | |
| 615 | if (!am_sender && argc > 1) { |
| 616 | usage(FERROR); |
| 617 | exit_cleanup(RERR_SYNTAX); |
| 618 | } |
| 619 | |
| 620 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out); |
| 621 | |
| 622 | ret = client_run(f_in, f_out, pid, argc, argv); |
| 623 | |
| 624 | fflush(stdout); |
| 625 | fflush(stderr); |
| 626 | |
| 627 | return ret; |
| 628 | } |
| 629 | |
| 630 | |
| 631 | static RETSIGTYPE sigusr1_handler(int val) { |
| 632 | exit_cleanup(RERR_SIGNAL); |
| 633 | } |
| 634 | |
| 635 | static RETSIGTYPE sigusr2_handler(int val) { |
| 636 | _exit(0); |
| 637 | } |
| 638 | |
| 639 | int main(int argc,char *argv[]) |
| 640 | { |
| 641 | extern int am_root; |
| 642 | extern int orig_umask; |
| 643 | extern int dry_run; |
| 644 | extern int am_daemon; |
| 645 | extern int am_server; |
| 646 | |
| 647 | signal(SIGUSR1, sigusr1_handler); |
| 648 | signal(SIGUSR2, sigusr2_handler); |
| 649 | |
| 650 | starttime = time(NULL); |
| 651 | am_root = (getuid() == 0); |
| 652 | |
| 653 | memset(&stats, 0, sizeof(stats)); |
| 654 | |
| 655 | if (argc < 2) { |
| 656 | usage(FERROR); |
| 657 | exit_cleanup(RERR_SYNTAX); |
| 658 | } |
| 659 | |
| 660 | /* we set a 0 umask so that correct file permissions can be |
| 661 | carried across */ |
| 662 | orig_umask = (int)umask(0); |
| 663 | |
| 664 | if (!parse_arguments(argc, argv, 1)) { |
| 665 | exit_cleanup(RERR_SYNTAX); |
| 666 | } |
| 667 | |
| 668 | argc -= optind; |
| 669 | argv += optind; |
| 670 | optind = 0; |
| 671 | |
| 672 | signal(SIGCHLD,SIG_IGN); |
| 673 | signal(SIGINT,SIGNAL_CAST sig_int); |
| 674 | signal(SIGPIPE,SIGNAL_CAST sig_int); |
| 675 | signal(SIGHUP,SIGNAL_CAST sig_int); |
| 676 | signal(SIGTERM,SIGNAL_CAST sig_int); |
| 677 | |
| 678 | /* Initialize push_dir here because on some old systems getcwd |
| 679 | (implemented by forking "pwd" and reading its output) doesn't |
| 680 | work when there are other child processes. Also, on all systems |
| 681 | that implement getcwd that way "pwd" can't be found after chroot. */ |
| 682 | push_dir(NULL,0); |
| 683 | |
| 684 | if (am_daemon) { |
| 685 | return daemon_main(); |
| 686 | } |
| 687 | |
| 688 | if (argc < 1) { |
| 689 | usage(FERROR); |
| 690 | exit_cleanup(RERR_SYNTAX); |
| 691 | } |
| 692 | |
| 693 | if (dry_run) |
| 694 | verbose = MAX(verbose,1); |
| 695 | |
| 696 | #ifndef SUPPORT_LINKS |
| 697 | if (!am_server && preserve_links) { |
| 698 | rprintf(FERROR,"ERROR: symbolic links not supported\n"); |
| 699 | exit_cleanup(RERR_UNSUPPORTED); |
| 700 | } |
| 701 | #endif |
| 702 | |
| 703 | if (am_server) { |
| 704 | set_nonblocking(STDIN_FILENO); |
| 705 | set_nonblocking(STDOUT_FILENO); |
| 706 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
| 707 | } |
| 708 | |
| 709 | return start_client(argc, argv); |
| 710 | } |
| 711 | |