1/* 2 * Copyright (C) 1986-2008 The Free Software Foundation, Inc. 3 * 4 * Portions Copyright (C) 1998-2006 Derek Price, Ximbiot <http://ximbiot.com>, 5 * and others. 6 * 7 * Portions Copyright (C) 1992, Brian Berliner and Jeff Polk 8 * Portions Copyright (C) 1989-1992, Brian Berliner 9 * 10 * You may distribute under the terms of the GNU General Public License 11 * as specified in the README file that comes with the CVS source distribution. 12 * 13 * This is the main C driver for the CVS system. 14 * 15 * Credit to Dick Grune, Vrije Universiteit, Amsterdam, for writing 16 * the shell-script CVS system that this is based on. 17 * 18 * $FreeBSD$ 19 */ 20 21#include <assert.h> 22#include "cvs.h" 23#include "prepend_args.h" 24 25#ifdef HAVE_WINSOCK_H 26#include <winsock.h> 27#else 28extern int gethostname (); 29#endif 30 31const char *program_name; 32const char *program_path; 33const char *cvs_cmd_name; 34 35/* I'd dynamically allocate this, but it seems like gethostname 36 requires a fixed size array. If I'm remembering the RFCs right, 37 256 should be enough. */ 38#ifndef MAXHOSTNAMELEN 39#define MAXHOSTNAMELEN 256 40#endif 41 42char hostname[MAXHOSTNAMELEN]; 43 44int use_editor = 1; 45int use_cvsrc = 1; 46int cvswrite = !CVSREAD_DFLT; 47int really_quiet = 0; 48int quiet = 0; 49int trace = 0; 50int noexec = 0; 51int readonlyfs = 0; 52int require_real_user = 0; 53int logoff = 0; 54 55/* 56 * Zero if compression isn't supported or requested; non-zero to indicate 57 * a compression level to request from gzip. 58 */ 59int gzip_level; 60 61/* Set if we should be writing CVSADM directories at top level. At 62 least for now we'll make the default be off (the CVS 1.9, not CVS 63 1.9.2, behavior). */ 64int top_level_admin = 0; 65 66mode_t cvsumask = UMASK_DFLT; 67 68char *CurDir; 69 70/* 71 * Defaults, for the environment variables that are not set 72 */ 73char *Tmpdir = TMPDIR_DFLT; 74char *Editor = EDITOR_DFLT; 75 76 77/* When our working directory contains subdirectories with different 78 values in CVS/Root files, we maintain a list of them. */ 79List *root_directories = NULL; 80 81static const struct cmd 82{ 83 char *fullname; /* Full name of the function (e.g. "commit") */ 84 85 /* Synonyms for the command, nick1 and nick2. We supply them 86 mostly for two reasons: (1) CVS has always supported them, and 87 we need to maintain compatibility, (2) if there is a need for a 88 version which is shorter than the fullname, for ease in typing. 89 Synonyms have the disadvantage that people will see "new" and 90 then have to think about it, or look it up, to realize that is 91 the operation they know as "add". Also, this means that one 92 cannot create a command "cvs new" with a different meaning. So 93 new synonyms are probably best used sparingly, and where used 94 should be abbreviations of the fullname (preferably consisting 95 of the first 2 or 3 or so letters). 96 97 One thing that some systems do is to recognize any unique 98 abbreviation, for example "annotat" "annota", etc., for 99 "annotate". The problem with this is that scripts and user 100 habits will expect a certain abbreviation to be unique, and in 101 a future release of CVS it may not be. So it is better to 102 accept only an explicit list of abbreviations and plan on 103 supporting them in the future as well as now. */ 104 105 char *nick1; 106 char *nick2; 107 108 int (*func) (); /* Function takes (argc, argv) arguments. */ 109 unsigned long attr; /* Attributes. */ 110} cmds[] = 111 112{ 113 { "add", "ad", "new", add, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 114 { "admin", "adm", "rcs", admin, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 115 { "annotate", "ann", "blame", annotate, CVS_CMD_USES_WORK_DIR }, 116 { "checkout", "co", "get", checkout, 0 }, 117 { "commit", "ci", "com", commit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 118 { "diff", "di", "dif", diff, CVS_CMD_USES_WORK_DIR }, 119 { "edit", NULL, NULL, edit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 120 { "editors", NULL, NULL, editors, CVS_CMD_USES_WORK_DIR }, 121 { "export", "exp", "ex", checkout, CVS_CMD_USES_WORK_DIR }, 122 { "history", "hi", "his", history, CVS_CMD_USES_WORK_DIR }, 123 { "import", "im", "imp", import, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR | CVS_CMD_IGNORE_ADMROOT}, 124 { "init", NULL, NULL, init, CVS_CMD_MODIFIES_REPOSITORY }, 125#if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT) 126 { "kserver", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, /* placeholder */ 127#endif 128 { "log", "lo", NULL, cvslog, CVS_CMD_USES_WORK_DIR }, 129#ifdef AUTH_CLIENT_SUPPORT 130 { "login", "logon", "lgn", login, 0 }, 131 { "logout", NULL, NULL, logout, 0 }, 132#endif /* AUTH_CLIENT_SUPPORT */ 133#if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT) 134 { "pserver", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, /* placeholder */ 135#endif 136 { "rannotate","rann", "ra", annotate, 0 }, 137 { "rdiff", "patch", "pa", patch, 0 }, 138 { "release", "re", "rel", release, 0 }, 139 { "remove", "rm", "delete", cvsremove, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 140 { "rlog", "rl", NULL, cvslog, 0 }, 141 { "rtag", "rt", "rfreeze", cvstag, CVS_CMD_MODIFIES_REPOSITORY }, 142#ifdef SERVER_SUPPORT 143 { "server", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 144#endif 145 { "status", "st", "stat", cvsstatus, CVS_CMD_USES_WORK_DIR }, 146 { "tag", "ta", "freeze", cvstag, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 147 { "unedit", NULL, NULL, unedit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 148 { "update", "up", "upd", update, CVS_CMD_USES_WORK_DIR }, 149 { "version", "ve", "ver", version, 0 }, 150 { "watch", NULL, NULL, watch, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, 151 { "watchers", NULL, NULL, watchers, CVS_CMD_USES_WORK_DIR }, 152 { NULL, NULL, NULL, NULL, 0 }, 153}; 154 155static const char *const usg[] = 156{ 157 /* CVS usage messages never have followed the GNU convention of 158 putting metavariables in uppercase. I don't know whether that 159 is a good convention or not, but if it changes it would have to 160 change in all the usage messages. For now, they consistently 161 use lowercase, as far as I know. Punctuation is pretty funky, 162 though. Sometimes they use none, as here. Sometimes they use 163 single quotes (not the TeX-ish `' stuff), as in --help-options. 164 Sometimes they use double quotes, as in cvs -H add. 165 166 Most (not all) of the usage messages seem to have periods at 167 the end of each line. I haven't tried to duplicate this style 168 in --help as it is a rather different format from the rest. */ 169 170 "Usage: %s [cvs-options] command [command-options-and-arguments]\n", 171 " where cvs-options are -q, -n, etc.\n", 172 " (specify --help-options for a list of options)\n", 173 " where command is add, admin, etc.\n", 174 " (specify --help-commands for a list of commands\n", 175 " or --help-synonyms for a list of command synonyms)\n", 176 " where command-options-and-arguments depend on the specific command\n", 177 " (specify -H followed by a command name for command-specific help)\n", 178 " Specify --help to receive this message\n", 179 "\n", 180 181 /* Some people think that a bug-reporting address should go here. IMHO, 182 the web sites are better because anything else is very likely to go 183 obsolete in the years between a release and when someone might be 184 reading this help. Besides, we could never adequately discuss 185 bug reporting in a concise enough way to put in a help message. */ 186 187 /* I was going to put this at the top, but usage() wants the %s to 188 be in the first line. */ 189 "The Concurrent Versions System (CVS) is a tool for version control.\n", 190 /* I really don't think I want to try to define "version control" 191 in one line. I'm not sure one can get more concise than the 192 paragraph in ../cvs.spec without assuming the reader knows what 193 version control means. */ 194 195 "For CVS updates and additional information, see\n", 196 " the CVS home page at http://cvs.nongnu.org/\n", 197 NULL, 198}; 199 200static const char *const cmd_usage[] = 201{ 202 "CVS commands are:\n", 203 " add Add a new file/directory to the repository\n", 204 " admin Administration front end for rcs\n", 205 " annotate Show last revision where each line was modified\n", 206 " checkout Checkout sources for editing\n", 207 " commit Check files into the repository\n", 208 " diff Show differences between revisions\n", 209 " edit Get ready to edit a watched file\n", 210 " editors See who is editing a watched file\n", 211 " export Export sources from CVS, similar to checkout\n", 212 " history Show repository access history\n", 213 " import Import sources into CVS, using vendor branches\n", 214 " init Create a CVS repository if it doesn't exist\n", 215#if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT) 216 " kserver Kerberos server mode\n", 217#endif 218 " log Print out history information for files\n", 219#ifdef AUTH_CLIENT_SUPPORT 220 " login Prompt for password for authenticating server\n", 221 " logout Removes entry in .cvspass for remote repository\n", 222#endif /* AUTH_CLIENT_SUPPORT */ 223#if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT) 224 " pserver Password server mode\n", 225#endif 226 " rannotate Show last revision where each line of module was modified\n", 227 " rdiff Create 'patch' format diffs between releases\n", 228 " release Indicate that a Module is no longer in use\n", 229 " remove Remove an entry from the repository\n", 230 " rlog Print out history information for a module\n", 231 " rtag Add a symbolic tag to a module\n", 232#ifdef SERVER_SUPPORT 233 " server Server mode\n", 234#endif 235 " status Display status information on checked out files\n", 236 " tag Add a symbolic tag to checked out version of files\n", 237 " unedit Undo an edit command\n", 238 " update Bring work tree in sync with repository\n", 239 " version Show current CVS version(s)\n", 240 " watch Set watches\n", 241 " watchers See who is watching a file\n", 242 "(Specify the --help option for a list of other help options)\n", 243 NULL, 244}; 245 246static const char *const opt_usage[] = 247{ 248 /* Omit -b because it is just for compatibility. */ 249 "CVS global options (specified before the command name) are:\n", 250 " -H Displays usage information for command.\n", 251 " -Q Cause CVS to be really quiet.\n", 252 " -q Cause CVS to be somewhat quiet.\n", 253 " -r Make checked-out files read-only.\n", 254 " -w Make checked-out files read-write (default).\n", 255 " -g Force group-write perms on checked-out files.\n", 256 " -n Do not execute anything that will change the disk.\n", 257 " -t Show trace of program execution -- try with -n.\n", 258 " -R Assume repository is read-only, such as CDROM\n", 259 " -v CVS version and copyright.\n", 260 " -T tmpdir Use 'tmpdir' for temporary files.\n", 261 " -e editor Use 'editor' for editing log information.\n", 262 " -d CVS_root Overrides $CVSROOT as the root of the CVS tree.\n", 263 " -f Do not use the ~/.cvsrc file.\n", 264#ifdef CLIENT_SUPPORT 265 " -z # Use compression level '#' for net traffic.\n", 266#ifdef ENCRYPTION 267 " -x Encrypt all net traffic.\n", 268#endif 269 " -a Authenticate all net traffic.\n", 270#endif 271 " -s VAR=VAL Set CVS user variable.\n", 272 "(Specify the --help option for a list of other help options)\n", 273 NULL 274}; 275 276 277static int 278set_root_directory (p, ignored) 279 Node *p; 280 void *ignored; 281{ 282 if (current_parsed_root == NULL && p->data != NULL) 283 { 284 current_parsed_root = p->data; 285 return 1; 286 } 287 return 0; 288} 289 290 291static const char * const* 292cmd_synonyms () 293{ 294 char ** synonyms; 295 char ** line; 296 const struct cmd *c = &cmds[0]; 297 /* Three more for title, "specify --help" line, and NULL. */ 298 int numcmds = 3; 299 300 while (c->fullname != NULL) 301 { 302 numcmds++; 303 c++; 304 } 305 306 synonyms = (char **) xmalloc(numcmds * sizeof(char *)); 307 line = synonyms; 308 *line++ = "CVS command synonyms are:\n"; 309 for (c = &cmds[0]; c->fullname != NULL; c++) 310 { 311 if (c->nick1 || c->nick2) 312 { 313 *line = xmalloc (strlen (c->fullname) 314 + (c->nick1 != NULL ? strlen (c->nick1) : 0) 315 + (c->nick2 != NULL ? strlen (c->nick2) : 0) 316 + 40); 317 sprintf(*line, " %-12s %s %s\n", c->fullname, 318 c->nick1 ? c->nick1 : "", 319 c->nick2 ? c->nick2 : ""); 320 line++; 321 } 322 } 323 *line++ = "(Specify the --help option for a list of other help options)\n"; 324 *line = NULL; 325 326 return (const char * const*) synonyms; /* will never be freed */ 327} 328 329 330unsigned long int 331lookup_command_attribute (cmd_name) 332 char *cmd_name; 333{ 334 const struct cmd *cm; 335 336 for (cm = cmds; cm->fullname; cm++) 337 { 338 if (strcmp (cmd_name, cm->fullname) == 0) 339 break; 340 } 341 if (!cm->fullname) 342 error (1, 0, "unknown command: %s", cmd_name); 343 return cm->attr; 344} 345 346 347static RETSIGTYPE 348main_cleanup (sig) 349 int sig; 350{ 351#ifndef DONT_USE_SIGNALS 352 const char *name; 353 char temp[10]; 354 355 switch (sig) 356 { 357#ifdef SIGABRT 358 case SIGABRT: 359 name = "abort"; 360 break; 361#endif 362#ifdef SIGHUP 363 case SIGHUP: 364 name = "hangup"; 365 break; 366#endif 367#ifdef SIGINT 368 case SIGINT: 369 name = "interrupt"; 370 break; 371#endif 372#ifdef SIGQUIT 373 case SIGQUIT: 374 name = "quit"; 375 break; 376#endif 377#ifdef SIGPIPE 378 case SIGPIPE: 379 name = "broken pipe"; 380 break; 381#endif 382#ifdef SIGTERM 383 case SIGTERM: 384 name = "termination"; 385 break; 386#endif 387 default: 388 /* This case should never be reached, because we list above all 389 the signals for which we actually establish a signal handler. */ 390 sprintf (temp, "%d", sig); 391 name = temp; 392 break; 393 } 394 395 error (1, 0, "received %s signal", name); 396#endif /* !DONT_USE_SIGNALS */ 397} 398 399int 400main (argc, argv) 401 int argc; 402 char **argv; 403{ 404 cvsroot_t *CVSroot_parsed = NULL; 405 int cvsroot_update_env = 1; 406 char *cp, *end; 407 const struct cmd *cm; 408 int c, err = 0; 409 int tmpdir_update_env; 410 int free_Editor = 0; 411 int free_Tmpdir = 0; 412 413 int help = 0; /* Has the user asked for help? This 414 lets us support the `cvs -H cmd' 415 convention to give help for cmd. */ 416 static const char short_options[] = "+QqgrwtnRvb:T:e:d:Hfz:s:xaU"; 417 static struct option long_options[] = 418 { 419 {"help", 0, NULL, 'H'}, 420 {"version", 0, NULL, 'v'}, 421 {"help-commands", 0, NULL, 1}, 422 {"help-synonyms", 0, NULL, 2}, 423 {"help-options", 0, NULL, 4}, 424 {"allow-root", required_argument, NULL, 3}, 425 {0, 0, 0, 0} 426 }; 427 /* `getopt_long' stores the option index here, but right now we 428 don't use it. */ 429 int option_index = 0; 430 431#ifdef SYSTEM_INITIALIZE 432 /* Hook for OS-specific behavior, for example socket subsystems on 433 NT and OS2 or dealing with windows and arguments on Mac. */ 434 SYSTEM_INITIALIZE (&argc, &argv); 435#endif 436 437#ifdef HAVE_TZSET 438 /* On systems that have tzset (which is almost all the ones I know 439 of), it's a good idea to call it. */ 440 tzset (); 441#endif 442 443 /* 444 * Just save the last component of the path for error messages 445 */ 446 program_path = xstrdup (argv[0]); 447#ifdef ARGV0_NOT_PROGRAM_NAME 448 /* On some systems, e.g. VMS, argv[0] is not the name of the command 449 which the user types to invoke the program. */ 450 program_name = "cvs"; 451#else 452 program_name = last_component (argv[0]); 453#endif 454 455 /* 456 * Query the environment variables up-front, so that 457 * they can be overridden by command line arguments 458 */ 459 tmpdir_update_env = *Tmpdir; /* TMPDIR_DFLT must be set */ 460 if ((cp = getenv (TMPDIR_ENV)) != NULL) 461 { 462 Tmpdir = cp; 463 tmpdir_update_env = 0; /* it's already there */ 464 } 465 if ((cp = getenv (EDITOR1_ENV)) != NULL) 466 Editor = cp; 467 else if ((cp = getenv (EDITOR2_ENV)) != NULL) 468 Editor = cp; 469 else if ((cp = getenv (EDITOR3_ENV)) != NULL) 470 Editor = cp; 471 if (getenv (CVSREAD_ENV) != NULL) 472 cvswrite = 0; 473 if (getenv (CVSREADONLYFS_ENV) != NULL) { 474 readonlyfs = 1; 475 logoff = 1; 476 } 477 478 prepend_default_options (getenv ("CVS_OPTIONS"), &argc, &argv); 479 480 /* Set this to 0 to force getopt initialization. getopt() sets 481 this to 1 internally. */ 482 optind = 0; 483 484 /* We have to parse the options twice because else there is no 485 chance to avoid reading the global options from ".cvsrc". Set 486 opterr to 0 for avoiding error messages about invalid options. 487 */ 488 opterr = 0; 489 490 while ((c = getopt_long 491 (argc, argv, short_options, long_options, &option_index)) 492 != EOF) 493 { 494 if (c == 'f') 495 use_cvsrc = 0; 496 } 497 498 /* 499 * Scan cvsrc file for global options. 500 */ 501 if (use_cvsrc) 502 read_cvsrc (&argc, &argv, "cvs"); 503 504 optind = 0; 505 opterr = 1; 506 507 while ((c = getopt_long 508 (argc, argv, short_options, long_options, &option_index)) 509 != EOF) 510 { 511 switch (c) 512 { 513 case 1: 514 /* --help-commands */ 515 usage (cmd_usage); 516 break; 517 case 2: 518 /* --help-synonyms */ 519 usage (cmd_synonyms()); 520 break; 521 case 4: 522 /* --help-options */ 523 usage (opt_usage); 524 break; 525 case 3: 526 /* --allow-root */ 527 root_allow_add (optarg); 528 break; 529 case 'Q': 530 really_quiet = 1; 531 /* FALL THROUGH */ 532 case 'q': 533 quiet = 1; 534 break; 535 case 'r': 536 cvswrite = 0; 537 break; 538 case 'w': 539 cvswrite = 1; 540 break; 541 case 'g': 542 /* 543 * force full group write perms (used for shared checked-out 544 * source trees, see manual page) 545 */ 546 umask(umask(077) & 007); 547 break; 548 case 't': 549 trace = 1; 550 break; 551 case 'R': 552 readonlyfs = 1; 553 logoff = 1; 554 break; 555 case 'n': 556 noexec = 1; 557 logoff = 1; 558 break; 559 case 'v': 560 (void) fputs ("\n", stdout); 561 version (0, (char **) NULL); 562 (void) fputs ("\n", stdout); 563 (void) fputs ("\ 564Copyright (C) 2006 Free Software Foundation, Inc.\n\ 565\n\ 566Senior active maintainers include Larry Jones, Derek R. Price,\n\ 567and Mark D. Baushke. Please see the AUTHORS and README files from the CVS\n\ 568distribution kit for a complete list of contributors and copyrights.\n", 569 stdout); 570 (void) fputs ("\n", stdout); 571 (void) fputs ("CVS may be copied only under the terms of the GNU General Public License,\n", stdout); 572 (void) fputs ("a copy of which can be found with the CVS distribution kit.\n", stdout); 573 (void) fputs ("\n", stdout); 574 575 (void) fputs ("Specify the --help option for further information about CVS\n", stdout); 576 577#ifdef SYSTEM_CLEANUP 578 /* Hook for OS-specific behavior, for example socket subsystems 579 * on NT and OS2 or dealing with windows and arguments on Mac. 580 */ 581 SYSTEM_CLEANUP (); 582#endif 583 exit (0); 584 break; 585 case 'b': 586 /* This option used to specify the directory for RCS 587 executables. But since we don't run them any more, 588 this is a noop. Silently ignore it so that .cvsrc 589 and scripts and inetd.conf and such can work with 590 either new or old CVS. */ 591 break; 592 case 'T': 593 if (free_Tmpdir) free (Tmpdir); 594 Tmpdir = xstrdup (optarg); 595 free_Tmpdir = 1; 596 tmpdir_update_env = 1; /* need to update environment */ 597 break; 598 case 'e': 599 if (free_Editor) free (Editor); 600 Editor = xstrdup (optarg); 601 free_Editor = 1; 602 break; 603 case 'd': 604 if (CVSroot_cmdline != NULL) 605 free (CVSroot_cmdline); 606 CVSroot_cmdline = xstrdup (optarg); 607 break; 608 case 'H': 609 help = 1; 610 break; 611 case 'f': 612 use_cvsrc = 0; /* unnecessary, since we've done it above */ 613 break; 614 case 'z': 615 gzip_level = strtol (optarg, &end, 10); 616 if (*end != '\0' || gzip_level < 0 || gzip_level > 9) 617 error (1, 0, 618 "gzip compression level must be between 0 and 9"); 619 /* If no CLIENT_SUPPORT, we just silently ignore the gzip 620 * level, so that users can have it in their .cvsrc and not 621 * cause any trouble. 622 * 623 * We still parse the argument to -z for correctness since 624 * one user complained of being bitten by a run of 625 * `cvs -z -n up' which read -n as the argument to -z without 626 * complaining. */ 627 break; 628 case 's': 629 variable_set (optarg); 630 break; 631 case 'x': 632#ifdef CLIENT_SUPPORT 633 cvsencrypt = 1; 634#endif /* CLIENT_SUPPORT */ 635 /* If no CLIENT_SUPPORT, ignore -x, so that users can 636 have it in their .cvsrc and not cause any trouble. 637 If no ENCRYPTION, we still accept -x, but issue an 638 error if we are being run as a client. */ 639 break; 640 case 'a': 641#ifdef CLIENT_SUPPORT 642 cvsauthenticate = 1; 643#endif 644 /* If no CLIENT_SUPPORT, ignore -a, so that users can 645 have it in their .cvsrc and not cause any trouble. 646 We will issue an error later if stream 647 authentication is not supported. */ 648 break; 649 case 'U': 650#ifdef SERVER_SUPPORT 651 require_real_user = 1; 652#endif 653 break; 654 case '?': 655 default: 656 usage (usg); 657 } 658 } 659 660 argc -= optind; 661 argv += optind; 662 if (argc < 1) 663 usage (usg); 664 665 666 /* Look up the command name. */ 667 668 cvs_cmd_name = argv[0]; 669 for (cm = cmds; cm->fullname; cm++) 670 { 671 if (cm->nick1 && !strcmp (cvs_cmd_name, cm->nick1)) 672 break; 673 if (cm->nick2 && !strcmp (cvs_cmd_name, cm->nick2)) 674 break; 675 if (!strcmp (cvs_cmd_name, cm->fullname)) 676 break; 677 } 678 679 if (!cm->fullname) 680 { 681 fprintf (stderr, "Unknown command: `%s'\n\n", cvs_cmd_name); 682 usage (cmd_usage); 683 } 684 else 685 cvs_cmd_name = cm->fullname; /* Global pointer for later use */ 686 687 if (help) 688 { 689 argc = -1; /* some functions only check for this */ 690 err = (*(cm->func)) (argc, argv); 691 } 692 else 693 { 694 /* The user didn't ask for help, so go ahead and authenticate, 695 set up CVSROOT, and the rest of it. */ 696 697 /* The UMASK environment variable isn't handled with the 698 others above, since we don't want to signal errors if the 699 user has asked for help. This won't work if somebody adds 700 a command-line flag to set the umask, since we'll have to 701 parse it before we get here. */ 702 703 if ((cp = getenv (CVSUMASK_ENV)) != NULL) 704 { 705 /* FIXME: Should be accepting symbolic as well as numeric mask. */ 706 cvsumask = strtol (cp, &end, 8) & 0777; 707 if (*end != '\0') 708 error (1, errno, "invalid umask value in %s (%s)", 709 CVSUMASK_ENV, cp); 710 } 711 712#ifdef SERVER_SUPPORT 713 714# ifdef HAVE_KERBEROS 715 /* If we are invoked with a single argument "kserver", then we are 716 running as Kerberos server as root. Do the authentication as 717 the very first thing, to minimize the amount of time we are 718 running as root. */ 719 if (strcmp (cvs_cmd_name, "kserver") == 0) 720 { 721 kserver_authenticate_connection (); 722 723 /* Pretend we were invoked as a plain server. */ 724 cvs_cmd_name = "server"; 725 } 726# endif /* HAVE_KERBEROS */ 727 728 729# if defined (AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI) 730 if (strcmp (cvs_cmd_name, "pserver") == 0) 731 { 732 /* The reason that --allow-root is not a command option 733 is mainly the comment in server() about how argc,argv 734 might be from .cvsrc. I'm not sure about that, and 735 I'm not sure it is only true of command options, but 736 it seems easier to make it a global option. */ 737 738 /* Gets username and password from client, authenticates, then 739 switches to run as that user and sends an ACK back to the 740 client. */ 741 pserver_authenticate_connection (); 742 743 /* Pretend we were invoked as a plain server. */ 744 cvs_cmd_name = "server"; 745 } 746# endif /* AUTH_SERVER_SUPPORT || HAVE_GSSAPI */ 747#endif /* SERVER_SUPPORT */ 748 749 server_active = strcmp (cvs_cmd_name, "server") == 0; 750 751 /* This is only used for writing into the history file. For 752 remote connections, it might be nice to have hostname 753 and/or remote path, on the other hand I'm not sure whether 754 it is worth the trouble. */ 755 756 if (server_active) 757 CurDir = xstrdup ("<remote>"); 758 else 759 { 760 CurDir = xgetwd (); 761 if (CurDir == NULL) 762 error (1, errno, "cannot get working directory"); 763 } 764 765 if (Tmpdir == NULL || Tmpdir[0] == '\0') 766 { 767 if (free_Tmpdir) free (Tmpdir); 768 Tmpdir = "/tmp"; 769 } 770 771#ifdef HAVE_PUTENV 772 if (tmpdir_update_env) 773 { 774 char *env; 775 env = xmalloc (strlen (TMPDIR_ENV) + strlen (Tmpdir) + 1 + 1); 776 (void) sprintf (env, "%s=%s", TMPDIR_ENV, Tmpdir); 777 (void) putenv (env); 778 /* do not free env, as putenv has control of it */ 779 } 780 { 781 char *env; 782 env = xmalloc (sizeof "CVS_PID=" + 32); /* XXX pid < 10^32 */ 783 (void) sprintf (env, "CVS_PID=%ld", (long) getpid ()); 784 (void) putenv (env); 785 } 786#endif 787 788#ifndef DONT_USE_SIGNALS 789 /* make sure we clean up on error */ 790#ifdef SIGABRT 791 (void) SIG_register (SIGABRT, main_cleanup); 792#endif 793#ifdef SIGHUP 794 (void) SIG_register (SIGHUP, main_cleanup); 795#endif 796#ifdef SIGINT 797 (void) SIG_register (SIGINT, main_cleanup); 798#endif 799#ifdef SIGQUIT 800 (void) SIG_register (SIGQUIT, main_cleanup); 801#endif 802#ifdef SIGPIPE 803 (void) SIG_register (SIGPIPE, main_cleanup); 804#endif 805#ifdef SIGTERM 806 (void) SIG_register (SIGTERM, main_cleanup); 807#endif 808#endif /* !DONT_USE_SIGNALS */ 809 810 gethostname(hostname, sizeof (hostname)); 811 812#ifdef KLUDGE_FOR_WNT_TESTSUITE 813 /* Probably the need for this will go away at some point once 814 we call fflush enough places (e.g. fflush (stdout) in 815 cvs_outerr). */ 816 (void) setvbuf (stdout, (char *) NULL, _IONBF, 0); 817 (void) setvbuf (stderr, (char *) NULL, _IONBF, 0); 818#endif /* KLUDGE_FOR_WNT_TESTSUITE */ 819 820 if (use_cvsrc) 821 read_cvsrc (&argc, &argv, cvs_cmd_name); 822 823 /* Fiddling with CVSROOT doesn't make sense if we're running 824 * in server mode, since the client will send the repository 825 * directory after the connection is made. 826 */ 827 if (!server_active) 828 { 829 /* First check if a root was set via the command line. */ 830 if (CVSroot_cmdline) 831 { 832 if (!(CVSroot_parsed = parse_cvsroot (CVSroot_cmdline))) 833 error (1, 0, "Bad CVSROOT: `%s'.", CVSroot_cmdline); 834 } 835 836 /* See if we are able to find a 'better' value for CVSroot 837 * in the CVSADM_ROOT directory. 838 * 839 * "cvs import" shouldn't check CVS/Root; in general it 840 * ignores CVS directories and CVS/Root is likely to 841 * specify a different repository than the one we are 842 * importing to, but if this is not import and no root was 843 * specified on the command line, set the root from the 844 * CVS/Root file. 845 */ 846 if (!CVSroot_parsed 847 && !(cm->attr & CVS_CMD_IGNORE_ADMROOT) 848 ) 849 CVSroot_parsed = Name_Root (NULL, NULL); 850 851 /* Now, if there is no root on the command line and we didn't find 852 * one in a file, set it via the $CVSROOT env var. 853 */ 854 if (!CVSroot_parsed) 855 { 856 char *tmp = getenv (CVSROOT_ENV); 857 if (tmp) 858 { 859 if (!(CVSroot_parsed = parse_cvsroot (tmp))) 860 error (1, 0, "Bad CVSROOT: `%s'.", tmp); 861 cvsroot_update_env = 0; 862 } 863 } 864 865#ifdef CVSROOT_DFLT 866 if (!CVSroot_parsed) 867 { 868 if (!(CVSroot_parsed = parse_cvsroot (CVSROOT_DFLT))) 869 error (1, 0, "Bad CVSROOT: `%s'.", CVSROOT_DFLT); 870 } 871#endif /* CVSROOT_DFLT */ 872 873 /* Now we've reconciled CVSROOT from the command line, the 874 CVS/Root file, and the environment variable. Do the 875 last sanity checks on the variable. */ 876 if (!CVSroot_parsed) 877 { 878 error (0, 0, 879 "No CVSROOT specified! Please use the `-d' option"); 880 error (1, 0, 881 "or set the %s environment variable.", CVSROOT_ENV); 882 } 883 } 884 885 /* Here begins the big loop over unique cvsroot values. We 886 need to call do_recursion once for each unique value found 887 in CVS/Root. Prime the list with the current value. */ 888 889 /* Create the list. */ 890 assert (root_directories == NULL); 891 root_directories = getlist (); 892 893 /* Prime it. */ 894 if (CVSroot_parsed) 895 { 896 Node *n; 897 n = getnode (); 898 n->type = NT_UNKNOWN; 899 n->key = xstrdup (CVSroot_parsed->original); 900 n->data = CVSroot_parsed; 901 902 if (addnode (root_directories, n)) 903 error (1, 0, "cannot add initial CVSROOT %s", n->key); 904 } 905 906 assert (current_parsed_root == NULL); 907 908 /* If we're running the server, we want to execute this main 909 loop once and only once (we won't be serving multiple roots 910 from this connection, so there's no need to do it more than 911 once). To get out of the loop, we perform a "break" at the 912 end of things. */ 913 914 while (server_active || 915 walklist (root_directories, set_root_directory, NULL)) 916 { 917 /* Fiddling with CVSROOT doesn't make sense if we're running 918 in server mode, since the client will send the repository 919 directory after the connection is made. */ 920 921 if (!server_active) 922 { 923 /* Now we're 100% sure that we have a valid CVSROOT 924 variable. Parse it to see if we're supposed to do 925 remote accesses or use a special access method. */ 926 927 if (trace) 928 fprintf (stderr, "%s-> main loop with CVSROOT=%s\n", 929 CLIENT_SERVER_STR, current_parsed_root->original); 930 931 /* 932 * Check to see if the repository exists. 933 */ 934 if (!current_parsed_root->isremote) 935 { 936 char *path; 937 int save_errno; 938 939 path = xmalloc (strlen (current_parsed_root->directory) 940 + strlen (CVSROOTADM) + 2); 941 sprintf (path, "%s/%s", current_parsed_root->directory, 942 CVSROOTADM); 943 if (!isaccessible (path, R_OK | X_OK)) 944 { 945 save_errno = errno; 946 /* If this is "cvs init", the root need not exist yet. 947 */ 948 if (strcmp (cvs_cmd_name, "init")) 949 error (1, save_errno, "%s", path); 950 } 951 free (path); 952 } 953 954#ifdef HAVE_PUTENV 955 /* Update the CVSROOT environment variable. */ 956 if (cvsroot_update_env) 957 { 958 static char *prev; 959 char *env; 960 961 env = xmalloc (strlen (CVSROOT_ENV) 962 + strlen (current_parsed_root->original) 963 + 2); 964 sprintf (env, "%s=%s", CVSROOT_ENV, 965 current_parsed_root->original); 966 (void) putenv (env); 967 /* do not free env yet, as putenv has control of it */ 968 /* but do free the previous value, if any */ 969 if (prev != NULL) 970 free (prev); 971 prev = env; 972 } 973#endif 974 } 975 976 /* Parse the CVSROOT/config file, but only for local. For the 977 server, we parse it after we know $CVSROOT. For the 978 client, it doesn't get parsed at all, obviously. The 979 presence of the parse_config call here is not mean to 980 predetermine whether CVSROOT/config overrides things from 981 read_cvsrc and other such places or vice versa. That sort 982 of thing probably needs more thought. */ 983 if (!server_active && !current_parsed_root->isremote) 984 { 985 /* If there was an error parsing the config file, parse_config 986 already printed an error. We keep going. Why? Because 987 if we didn't, then there would be no way to check in a new 988 CVSROOT/config file to fix the broken one! */ 989 parse_config (current_parsed_root->directory); 990 991 /* Now is a convenient time to read CVSROOT/options */ 992 parseopts(current_parsed_root->directory); 993 } 994 995#ifdef CLIENT_SUPPORT 996 /* Need to check for current_parsed_root != NULL here since 997 * we could still be in server mode before the server function 998 * gets called below and sets the root 999 */ 1000 if (current_parsed_root != NULL && current_parsed_root->isremote) 1001 { 1002 /* Create a new list for directory names that we've 1003 sent to the server. */ 1004 if (dirs_sent_to_server != NULL) 1005 dellist (&dirs_sent_to_server); 1006 dirs_sent_to_server = getlist (); 1007 } 1008#endif 1009 1010 err = (*(cm->func)) (argc, argv); 1011 1012 /* Mark this root directory as done. When the server is 1013 active, our list will be empty -- don't try and 1014 remove it from the list. */ 1015 1016 if (!server_active) 1017 { 1018 Node *n = findnode (root_directories, 1019 current_parsed_root->original); 1020 assert (n != NULL); 1021 assert (n->data != NULL); 1022 free_cvsroot_t (n->data); 1023 n->data = NULL; 1024 current_parsed_root = NULL; 1025 } 1026 1027 if (server_active) 1028 { 1029 server_active = 0; 1030 break; 1031 } 1032 } /* end of loop for cvsroot values */ 1033 1034 dellist (&root_directories); 1035 } /* end of stuff that gets done if the user DOESN'T ask for help */ 1036 1037 Lock_Cleanup (); 1038 1039 /* It's okay to cast out the const below since we know we allocated this in 1040 * this function. The const was to keep other functions from messing with 1041 * this. 1042 */ 1043 free ((char *)program_path); 1044 if (CVSroot_cmdline != NULL) 1045 free (CVSroot_cmdline); 1046 if (free_Editor) 1047 free (Editor); 1048 if (free_Tmpdir) 1049 free (Tmpdir); 1050 root_allow_free (); 1051 1052#ifdef SYSTEM_CLEANUP 1053 /* Hook for OS-specific behavior, for example socket subsystems on 1054 NT and OS2 or dealing with windows and arguments on Mac. */ 1055 SYSTEM_CLEANUP (); 1056#endif 1057 1058 /* This is exit rather than return because apparently that keeps 1059 some tools which check for memory leaks happier. */ 1060 exit (err ? EXIT_FAILURE : 0); 1061 /* Keep picky/stupid compilers (e.g. Visual C++ 5.0) happy. */ 1062 return 0; 1063} 1064 1065char * 1066Make_Date (rawdate) 1067 char *rawdate; 1068{ 1069 time_t unixtime; 1070 1071 unixtime = get_date (rawdate, (struct timeb *) NULL); 1072 if (unixtime == (time_t) - 1) 1073 error (1, 0, "Can't parse date/time: %s", rawdate); 1074 return date_from_time_t (unixtime); 1075} 1076 1077/* Convert a time_t to an RCS format date. This is mainly for the 1078 use of "cvs history", because the CVSROOT/history file contains 1079 time_t format dates; most parts of CVS will want to avoid using 1080 time_t's directly, and instead use RCS_datecmp, Make_Date, &c. 1081 Assuming that the time_t is in GMT (as it generally should be), 1082 then the result will be in GMT too. 1083 1084 Returns a newly malloc'd string. */ 1085 1086char * 1087date_from_time_t (unixtime) 1088 time_t unixtime; 1089{ 1090 struct tm *ftm; 1091 char date[MAXDATELEN]; 1092 char *ret; 1093 1094 ftm = gmtime (&unixtime); 1095 if (ftm == NULL) 1096 /* This is a system, like VMS, where the system clock is in local 1097 time. Hopefully using localtime here matches the "zero timezone" 1098 hack I added to get_date (get_date of course being the relevant 1099 issue for Make_Date, and for history.c too I think). */ 1100 ftm = localtime (&unixtime); 1101 1102 (void) sprintf (date, DATEFORM, 1103 ftm->tm_year + (ftm->tm_year < 100 ? 0 : 1900), 1104 ftm->tm_mon + 1, ftm->tm_mday, ftm->tm_hour, 1105 ftm->tm_min, ftm->tm_sec); 1106 ret = xstrdup (date); 1107 return (ret); 1108} 1109 1110/* Convert a date to RFC822/1123 format. This is used in contexts like 1111 dates to send in the protocol; it should not vary based on locale or 1112 other such conventions for users. We should have another routine which 1113 does that kind of thing. 1114 1115 The SOURCE date is in our internal RCS format. DEST should point to 1116 storage managed by the caller, at least MAXDATELEN characters. */ 1117void 1118date_to_internet (dest, source) 1119 char *dest; 1120 const char *source; 1121{ 1122 struct tm date; 1123 1124 date_to_tm (&date, source); 1125 tm_to_internet (dest, &date); 1126} 1127 1128void 1129date_to_tm (dest, source) 1130 struct tm *dest; 1131 const char *source; 1132{ 1133 if (sscanf (source, SDATEFORM, 1134 &dest->tm_year, &dest->tm_mon, &dest->tm_mday, 1135 &dest->tm_hour, &dest->tm_min, &dest->tm_sec) 1136 != 6) 1137 /* Is there a better way to handle errors here? I made this 1138 non-fatal in case we are called from the code which can't 1139 deal with fatal errors. */ 1140 error (0, 0, "internal error: bad date %s", source); 1141 1142 if (dest->tm_year > 100) 1143 dest->tm_year -= 1900; 1144 1145 dest->tm_mon -= 1; 1146} 1147 1148/* Convert a date to RFC822/1123 format. This is used in contexts like 1149 dates to send in the protocol; it should not vary based on locale or 1150 other such conventions for users. We should have another routine which 1151 does that kind of thing. 1152 1153 The SOURCE date is a pointer to a struct tm. DEST should point to 1154 storage managed by the caller, at least MAXDATELEN characters. */ 1155void 1156tm_to_internet (dest, source) 1157 char *dest; 1158 const struct tm *source; 1159{ 1160 /* Just to reiterate, these strings are from RFC822 and do not vary 1161 according to locale. */ 1162 static const char *const month_names[] = 1163 {"Jan", "Feb", "Mar", "Apr", "May", "Jun", 1164 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; 1165 1166 sprintf (dest, "%d %s %d %02d:%02d:%02d -0000", source->tm_mday, 1167 source->tm_mon < 0 || source->tm_mon > 11 ? "???" : month_names[source->tm_mon], 1168 source->tm_year + 1900, source->tm_hour, source->tm_min, source->tm_sec); 1169} 1170 1171void 1172usage (cpp) 1173 register const char *const *cpp; 1174{ 1175 (void) fprintf (stderr, *cpp++, program_name, cvs_cmd_name); 1176 for (; *cpp; cpp++) 1177 (void) fprintf (stderr, *cpp); 1178 error_exit (); 1179} 1180 1181void 1182parseopts(root) 1183 const char *root; 1184{ 1185 char path[PATH_MAX]; 1186 int save_errno; 1187 char buf[1024]; 1188 const char *p; 1189 char *q; 1190 FILE *fp; 1191 1192 if (root == NULL) { 1193 printf("no CVSROOT in parseopts\n"); 1194 return; 1195 } 1196 p = strchr (root, ':'); 1197 if (p) 1198 p++; 1199 else 1200 p = root; 1201 if (p == NULL) { 1202 printf("mangled CVSROOT in parseopts\n"); 1203 return; 1204 } 1205 (void) sprintf (path, "%s/%s/%s", p, CVSROOTADM, CVSROOTADM_OPTIONS); 1206 if ((fp = fopen(path, "r")) != NULL) { 1207 while (fgets(buf, sizeof buf, fp) != NULL) { 1208 if (buf[0] == '#') 1209 continue; 1210 q = strrchr(buf, '\n'); 1211 if (q) 1212 *q = '\0'; 1213 1214 if (!strcmp(buf, "iso8601")) { 1215 datesep = '-'; 1216 } 1217 if (!strncmp(buf, "tag=", 4)) { 1218 char *what; 1219 char *rcs_localid; 1220 1221 rcs_localid = buf + 4; 1222 RCS_setlocalid(rcs_localid); 1223 } 1224 if (!strncmp(buf, "tagexpand=", 10)) { 1225 char *what; 1226 char *rcs_incexc; 1227 1228 rcs_incexc = buf + 10; 1229 RCS_setincexc(rcs_incexc); 1230 } 1231 /* 1232 * OpenBSD has a "umask=" and "dlimit=" command, we silently 1233 * ignore them here since they are not much use to us. cvsumask 1234 * defaults to 002 already, and the dlimit (data size limit) 1235 * should really be handled elsewhere (eg: login.conf). 1236 */ 1237 } 1238 fclose(fp); 1239 } 1240} 1241