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: stable/9/contrib/cvs/src/main.c 177398 2008-03-19 15:00:43Z obrien $
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
28 extern int gethostname ();
29 #endif
30
31 const char *program_name;
32 const char *program_path;
33 const 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
42 char hostname[MAXHOSTNAMELEN];
43
44 int use_editor = 1;
45 int use_cvsrc = 1;
46 int cvswrite = !CVSREAD_DFLT;
47 int really_quiet = 0;
48 int quiet = 0;
49 int trace = 0;
50 int noexec = 0;
51 int readonlyfs = 0;
52 int require_real_user = 0;
53 int 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 */
59 int 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). */
64 int top_level_admin = 0;
65
66 mode_t cvsumask = UMASK_DFLT;
67
68 char *CurDir;
69
70 /*
71 * Defaults, for the environment variables that are not set
72 */
73 char *Tmpdir = TMPDIR_DFLT;
74 char *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. */
79 List *root_directories = NULL;
80
81 static 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
155 static 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
200 static 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
246 static 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
277 static int
set_root_directory(p,ignored)278 set_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
291 static const char * const*
cmd_synonyms()292 cmd_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
330 unsigned long int
lookup_command_attribute(cmd_name)331 lookup_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
347 static RETSIGTYPE
main_cleanup(sig)348 main_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
399 int
main(argc,argv)400 main (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 ("\
564 Copyright (C) 2006 Free Software Foundation, Inc.\n\
565 \n\
566 Senior active maintainers include Larry Jones, Derek R. Price,\n\
567 and Mark D. Baushke. Please see the AUTHORS and README files from the CVS\n\
568 distribution 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
1065 char *
Make_Date(rawdate)1066 Make_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
1086 char *
date_from_time_t(unixtime)1087 date_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. */
1117 void
date_to_internet(dest,source)1118 date_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
1128 void
date_to_tm(dest,source)1129 date_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. */
1155 void
tm_to_internet(dest,source)1156 tm_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
1171 void
usage(cpp)1172 usage (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
1181 void
parseopts(root)1182 parseopts(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