2 * Copyright (C) 1986-2005 The Free Software Foundation, Inc.
4 * Portions Copyright (C) 1998-2005 Derek Price, Ximbiot <http://ximbiot.com>,
7 * Portions Copyright (C) 1992, Brian Berliner and Jeff Polk
8 * Portions Copyright (C) 1989-1992, Brian Berliner
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.
13 * This is the main C driver for the CVS system.
15 * Credit to Dick Grune, Vrije Universiteit, Amsterdam, for writing
16 * the shell-script CVS system that this is based on.
25 #include "xgethostname.h"
27 const char *program_name
;
28 const char *program_path
;
29 const char *cvs_cmd_name
;
31 const char *global_session_id
; /* Random session ID */
34 /* FIXME: Perhaps this should be renamed original_hostname or the like? */
35 char *server_hostname
;
39 int cvswrite
= !CVSREAD_DFLT
;
51 *** CVSROOT/config options
54 struct config
*config
;
58 mode_t cvsumask
= UMASK_DFLT
;
63 * Defaults, for the environment variables that are not set
65 char *Editor
= EDITOR_DFLT
;
71 /* Temp dir, if set by the user. */
72 static char *tmpdir_cmdline
;
76 /* Returns in order of precedence:
78 * 1. Temp dir as set via the command line.
79 * 2. Temp dir as set in CVSROOT/config.
80 * 3. Temp dir as set in $TMPDIR env var.
81 * 4. Contents of TMPDIR_DFLT preprocessor macro.
84 * It is a fatal error if this function would otherwise return NULL or an
88 get_cvs_tmp_dir (void)
91 if (tmpdir_cmdline
) retval
= tmpdir_cmdline
;
92 else if (config
&& config
->TmpDir
) retval
= config
->TmpDir
;
93 else retval
= get_system_temp_dir ();
94 if (!retval
) retval
= TMPDIR_DFLT
;
96 if (!retval
|| !*retval
) error (1, 0, "No temp dir specified.");
103 /* When our working directory contains subdirectories with different
104 values in CVS/Root files, we maintain a list of them. */
105 List
*root_directories
= NULL
;
107 static const struct cmd
109 const char *fullname
; /* Full name of the function (e.g. "commit") */
111 /* Synonyms for the command, nick1 and nick2. We supply them
112 mostly for two reasons: (1) CVS has always supported them, and
113 we need to maintain compatibility, (2) if there is a need for a
114 version which is shorter than the fullname, for ease in typing.
115 Synonyms have the disadvantage that people will see "new" and
116 then have to think about it, or look it up, to realize that is
117 the operation they know as "add". Also, this means that one
118 cannot create a command "cvs new" with a different meaning. So
119 new synonyms are probably best used sparingly, and where used
120 should be abbreviations of the fullname (preferably consisting
121 of the first 2 or 3 or so letters).
123 One thing that some systems do is to recognize any unique
124 abbreviation, for example "annotat" "annota", etc., for
125 "annotate". The problem with this is that scripts and user
126 habits will expect a certain abbreviation to be unique, and in
127 a future release of CVS it may not be. So it is better to
128 accept only an explicit list of abbreviations and plan on
129 supporting them in the future as well as now. */
134 int (*func
) (int, char **); /* Function takes (argc, argv) arguments. */
135 unsigned long attr
; /* Attributes. */
139 { "add", "ad", "new", add
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
140 { "admin", "adm", "rcs", admin
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
141 { "annotate", "ann", NULL
, annotate
, CVS_CMD_USES_WORK_DIR
},
142 { "checkout", "co", "get", checkout
, 0 },
143 { "commit", "ci", "com", commit
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
144 { "diff", "di", "dif", diff
, CVS_CMD_USES_WORK_DIR
},
145 { "edit", NULL
, NULL
, edit
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
146 { "editors", NULL
, NULL
, editors
, CVS_CMD_USES_WORK_DIR
},
147 { "export", "exp", "ex", checkout
, CVS_CMD_USES_WORK_DIR
},
148 { "history", "hi", "his", history
, CVS_CMD_USES_WORK_DIR
},
149 { "import", "im", "imp", import
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
| CVS_CMD_IGNORE_ADMROOT
},
150 { "init", NULL
, NULL
, init
, CVS_CMD_MODIFIES_REPOSITORY
},
151 #if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT)
152 { "kserver", NULL
, NULL
, server
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
}, /* placeholder */
154 { "log", "lo", NULL
, cvslog
, CVS_CMD_USES_WORK_DIR
},
155 #ifdef AUTH_CLIENT_SUPPORT
156 { "login", "logon", "lgn", login
, 0 },
157 { "logout", NULL
, NULL
, logout
, 0 },
158 #endif /* AUTH_CLIENT_SUPPORT */
159 { "ls", "dir", "list", ls
, 0 },
160 #if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT)
161 { "pserver", NULL
, NULL
, server
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
}, /* placeholder */
163 { "rannotate","rann", "ra", annotate
, 0 },
164 { "rdiff", "patch", "pa", patch
, 0 },
165 { "release", "re", "rel", release
, CVS_CMD_MODIFIES_REPOSITORY
},
166 { "remove", "rm", "delete", cvsremove
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
167 { "rlog", "rl", NULL
, cvslog
, 0 },
168 { "rls", "rdir", "rlist", ls
, 0 },
169 { "rtag", "rt", "rfreeze", cvstag
, CVS_CMD_MODIFIES_REPOSITORY
},
170 #ifdef SERVER_SUPPORT
171 { "server", NULL
, NULL
, server
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
173 { "status", "st", "stat", cvsstatus
, CVS_CMD_USES_WORK_DIR
},
174 { "tag", "ta", "freeze", cvstag
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
175 { "unedit", NULL
, NULL
, unedit
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
176 { "update", "up", "upd", update
, CVS_CMD_USES_WORK_DIR
},
177 { "version", "ve", "ver", version
, 0 },
178 { "watch", NULL
, NULL
, watch
, CVS_CMD_MODIFIES_REPOSITORY
| CVS_CMD_USES_WORK_DIR
},
179 { "watchers", NULL
, NULL
, watchers
, CVS_CMD_USES_WORK_DIR
},
180 { NULL
, NULL
, NULL
, NULL
, 0 },
183 static const char *const usg
[] =
185 /* CVS usage messages never have followed the GNU convention of
186 putting metavariables in uppercase. I don't know whether that
187 is a good convention or not, but if it changes it would have to
188 change in all the usage messages. For now, they consistently
189 use lowercase, as far as I know. Punctuation is pretty funky,
190 though. Sometimes they use none, as here. Sometimes they use
191 single quotes (not the TeX-ish `' stuff), as in --help-options.
192 Sometimes they use double quotes, as in cvs -H add.
194 Most (not all) of the usage messages seem to have periods at
195 the end of each line. I haven't tried to duplicate this style
196 in --help as it is a rather different format from the rest. */
198 "Usage: %s [cvs-options] command [command-options-and-arguments]\n",
199 " where cvs-options are -q, -n, etc.\n",
200 " (specify --help-options for a list of options)\n",
201 " where command is add, admin, etc.\n",
202 " (specify --help-commands for a list of commands\n",
203 " or --help-synonyms for a list of command synonyms)\n",
204 " where command-options-and-arguments depend on the specific command\n",
205 " (specify -H followed by a command name for command-specific help)\n",
206 " Specify --help to receive this message\n",
209 /* Some people think that a bug-reporting address should go here. IMHO,
210 the web sites are better because anything else is very likely to go
211 obsolete in the years between a release and when someone might be
212 reading this help. Besides, we could never adequately discuss
213 bug reporting in a concise enough way to put in a help message. */
215 /* I was going to put this at the top, but usage() wants the %s to
216 be in the first line. */
217 "The Concurrent Versions System (CVS) is a tool for version control.\n",
218 /* I really don't think I want to try to define "version control"
219 in one line. I'm not sure one can get more concise than the
220 paragraph in ../cvs.spec without assuming the reader knows what
221 version control means. */
223 "For CVS updates and additional information, see\n",
224 " the CVS home page at http://www.nongnu.org/cvs/ or\n",
225 " the CVSNT home page at http://www.cvsnt.org/\n",
229 static const char *const cmd_usage
[] =
231 "CVS commands are:\n",
232 " add Add a new file/directory to the repository\n",
233 " admin Administration front end for rcs\n",
234 " annotate Show last revision where each line was modified\n",
235 " checkout Checkout sources for editing\n",
236 " commit Check files into the repository\n",
237 " diff Show differences between revisions\n",
238 " edit Get ready to edit a watched file\n",
239 " editors See who is editing a watched file\n",
240 " export Export sources from CVS, similar to checkout\n",
241 " history Show repository access history\n",
242 " import Import sources into CVS, using vendor branches\n",
243 " init Create a CVS repository if it doesn't exist\n",
244 #if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT)
245 " kserver Kerberos server mode\n",
247 " log Print out history information for files\n",
248 #ifdef AUTH_CLIENT_SUPPORT
249 " login Prompt for password for authenticating server\n",
250 " logout Removes entry in .cvspass for remote repository\n",
251 #endif /* AUTH_CLIENT_SUPPORT */
252 " ls List files available from CVS\n",
253 #if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT)
254 " pserver Password server mode\n",
256 " rannotate Show last revision where each line of module was modified\n",
257 " rdiff Create 'patch' format diffs between releases\n",
258 " release Indicate that a Module is no longer in use\n",
259 " remove Remove an entry from the repository\n",
260 " rlog Print out history information for a module\n",
261 " rls List files in a module\n",
262 " rtag Add a symbolic tag to a module\n",
263 #ifdef SERVER_SUPPORT
264 " server Server mode\n",
266 " status Display status information on checked out files\n",
267 " tag Add a symbolic tag to checked out version of files\n",
268 " unedit Undo an edit command\n",
269 " update Bring work tree in sync with repository\n",
270 " version Show current CVS version(s)\n",
271 " watch Set watches\n",
272 " watchers See who is watching a file\n",
273 "(Specify the --help option for a list of other help options)\n",
277 static const char *const opt_usage
[] =
279 /* Omit -b because it is just for compatibility. */
280 "CVS global options (specified before the command name) are:\n",
281 " -H Displays usage information for command.\n",
282 " -Q Cause CVS to be really quiet.\n",
283 " -q Cause CVS to be somewhat quiet.\n",
284 " -r Make checked-out files read-only.\n",
285 " -w Make checked-out files read-write (default).\n",
286 " -g Force group-write perms on checked-out files.\n",
287 " -n Do not execute anything that will change the disk.\n",
288 " -t Show trace of program execution (repeat for more\n",
289 " verbosity) -- try with -n.\n",
290 " -R Assume repository is read-only, such as CDROM\n",
291 " -v CVS version and copyright.\n",
292 " -T tmpdir Use 'tmpdir' for temporary files.\n",
293 " -e editor Use 'editor' for editing log information.\n",
294 " -d CVS_root Overrides $CVSROOT as the root of the CVS tree.\n",
295 " -f Do not use the ~/.cvsrc file.\n",
296 #ifdef CLIENT_SUPPORT
297 " -z # Request compression level '#' for net traffic.\n",
299 " -x Encrypt all net traffic.\n",
301 " -a Authenticate all net traffic.\n",
303 " -s VAR=VAL Set CVS user variable.\n",
304 "(Specify the --help option for a list of other help options)\n",
310 set_root_directory (Node
*p
, void *ignored
)
312 if (current_parsed_root
== NULL
&& p
->data
!= NULL
)
314 current_parsed_root
= p
->data
;
315 original_parsed_root
= current_parsed_root
;
322 static const char * const*
327 const struct cmd
*c
= &cmds
[0];
328 /* Three more for title, "specify --help" line, and NULL. */
331 while (c
->fullname
!= NULL
)
337 synonyms
= xnmalloc (numcmds
, sizeof(char *));
339 *line
++ = "CVS command synonyms are:\n";
340 for (c
= &cmds
[0]; c
->fullname
!= NULL
; c
++)
342 if (c
->nick1
|| c
->nick2
)
344 *line
= Xasprintf (" %-12s %s %s\n", c
->fullname
,
345 c
->nick1
? c
->nick1
: "",
346 c
->nick2
? c
->nick2
: "");
350 *line
++ = "(Specify the --help option for a list of other help options)\n";
353 return (const char * const*) synonyms
; /* will never be freed */
359 lookup_command_attribute (const char *cmd_name
)
361 const struct cmd
*cm
;
363 for (cm
= cmds
; cm
->fullname
; cm
++)
365 if (strcmp (cmd_name
, cm
->fullname
) == 0)
369 error (1, 0, "unknown command: %s", cmd_name
);
376 * Exit with an error code and an informative message about the signal
377 * received. This function, by virtue of causing an actual call to exit(),
378 * causes all the atexit() handlers to be called.
381 * sig The signal recieved.
384 * The cleanup routines registered via atexit() and the error function
385 * itself can potentially change the exit status. They shouldn't do this
386 * unless they encounter problems doing their own jobs.
389 * Nothing. This function will always exit. It should exit with an exit
390 * status of 1, but might not, as noted in the ERRORS section above.
392 #ifndef DONT_USE_SIGNALS
393 static RETSIGTYPE
main_cleanup (int) __attribute__ ((__noreturn__
));
394 #endif /* DONT_USE_SIGNALS */
396 main_cleanup (int sig
)
398 #ifndef DONT_USE_SIGNALS
426 name
= "broken pipe";
431 name
= "termination";
435 /* This case should never be reached, because we list above all
436 the signals for which we actually establish a signal handler. */
437 sprintf (temp
, "%d", sig
);
442 /* This always exits, which will cause our exit handlers to be called. */
443 error (1, 0, "received %s signal", name
);
444 /* but make the exit explicit to silence warnings when gcc processes the
445 * noreturn attribute.
448 #endif /* !DONT_USE_SIGNALS */
455 * When !defined ALLOW_CONFIG_OVERRIDE, this will never have any value but
458 extern char *gConfigPath
;
463 enum {RANDOM_BYTES
= 8};
464 enum {COMMITID_RAW_SIZE
= (sizeof(time_t) + RANDOM_BYTES
)};
466 static char const alphabet
[62] =
467 "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
469 /* Divide BUF by D, returning the remainder. Replace BUF by the
470 quotient. BUF[0] is the most significant part of BUF.
471 D must not exceed UINT_MAX >> CHAR_BIT. */
473 divide_by (unsigned char buf
[COMMITID_RAW_SIZE
], unsigned int d
)
475 unsigned int carry
= 0;
477 for (i
= 0; i
< COMMITID_RAW_SIZE
; i
++)
479 unsigned int byte
= buf
[i
];
480 unsigned int dividend
= (carry
<< CHAR_BIT
) + byte
;
481 buf
[i
] = dividend
/ d
;
482 carry
= dividend
% d
;
488 convert (char const input
[COMMITID_RAW_SIZE
], char *output
)
490 static char const zero
[COMMITID_RAW_SIZE
] = { 0, };
491 unsigned char buf
[COMMITID_RAW_SIZE
];
493 memcpy (buf
, input
, COMMITID_RAW_SIZE
);
494 while (memcmp (buf
, zero
, COMMITID_RAW_SIZE
) != 0)
495 output
[o
++] = alphabet
[divide_by (buf
, sizeof alphabet
)];
503 main (int argc
, char **argv
)
505 cvsroot_t
*CVSroot_parsed
= NULL
;
506 bool cvsroot_update_env
= true;
508 const struct cmd
*cm
;
512 int help
= 0; /* Has the user asked for help? This
513 lets us support the `cvs -H cmd'
514 convention to give help for cmd. */
515 static const char short_options
[] = "+QqgrwtnRvb:T:e:d:Hfz:s:xa";
516 static struct option long_options
[] =
518 {"help", 0, NULL
, 'H'},
519 {"version", 0, NULL
, 'v'},
520 {"help-commands", 0, NULL
, 1},
521 {"help-synonyms", 0, NULL
, 2},
522 {"help-options", 0, NULL
, 4},
523 #ifdef SERVER_SUPPORT
524 {"allow-root", required_argument
, NULL
, 3},
525 #endif /* SERVER_SUPPORT */
528 /* `getopt_long' stores the option index here, but right now we
530 int option_index
= 0;
532 #ifdef SYSTEM_INITIALIZE
533 /* Hook for OS-specific behavior, for example socket subsystems on
534 NT and OS2 or dealing with windows and arguments on Mac. */
535 SYSTEM_INITIALIZE (&argc
, &argv
);
538 #ifdef SYSTEM_CLEANUP
539 /* Hook for OS-specific behavior, for example socket subsystems on
540 NT and OS2 or dealing with windows and arguments on Mac. */
541 cleanup_register (SYSTEM_CLEANUP
);
545 /* On systems that have tzset (which is almost all the ones I know
546 of), it's a good idea to call it. */
551 * Just save the last component of the path for error messages
553 program_path
= xstrdup (argv
[0]);
554 #ifdef ARGV0_NOT_PROGRAM_NAME
555 /* On some systems, e.g. VMS, argv[0] is not the name of the command
556 which the user types to invoke the program. */
557 program_name
= "cvs";
559 program_name
= last_component (argv
[0]);
563 * Query the environment variables up-front, so that
564 * they can be overridden by command line arguments
566 if ((cp
= getenv (EDITOR1_ENV
)) != NULL
)
568 else if ((cp
= getenv (EDITOR2_ENV
)) != NULL
)
570 else if ((cp
= getenv (EDITOR3_ENV
)) != NULL
)
572 if (getenv (CVSREAD_ENV
) != NULL
)
574 if (getenv (CVSREADONLYFS_ENV
) != NULL
) {
579 /* Set this to 0 to force getopt initialization. getopt() sets
580 this to 1 internally. */
583 /* We have to parse the options twice because else there is no
584 chance to avoid reading the global options from ".cvsrc". Set
585 opterr to 0 for avoiding error messages about invalid options.
589 while ((c
= getopt_long
590 (argc
, argv
, short_options
, long_options
, &option_index
))
597 #ifdef SERVER_SUPPORT
598 /* Don't try and read a .cvsrc file if we are a server. */
601 # if defined (AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)
602 || !strcmp (argv
[optind
], "pserver")
604 # ifdef HAVE_KERBEROS
605 || !strcmp (argv
[optind
], "kserver")
606 # endif /* HAVE_KERBEROS */
607 || !strcmp (argv
[optind
], "server")))
609 /* Avoid any .cvsrc file. */
611 /* Pre-parse the server options to get the config path. */
612 cvs_cmd_name
= argv
[optind
];
613 parseServerOptions (argc
- optind
, argv
+ optind
);
615 #endif /* SERVER_SUPPORT */
618 * Scan cvsrc file for global options.
621 read_cvsrc (&argc
, &argv
, "cvs");
626 while ((c
= getopt_long
627 (argc
, argv
, short_options
, long_options
, &option_index
))
633 /* --help-commands */
637 /* --help-synonyms */
638 usage (cmd_synonyms());
644 #ifdef SERVER_SUPPORT
647 root_allow_add (optarg
, gConfigPath
);
649 #endif /* SERVER_SUPPORT */
664 * Force full group write perms (used for shared checked-out
665 * source trees, see manual page)
667 umask(umask(S_IRWXG
|S_IRWXO
) & S_IRWXO
);
681 (void) fputs ("\n", stdout
);
683 (void) fputs ("\n", stdout
);
685 Copyright (C) 2005 Free Software Foundation, Inc.\n\
687 Senior active maintainers include Larry Jones, Derek R. Price,\n\
688 and Mark D. Baushke. Please see the AUTHORS and README files from the CVS\n\
689 distribution kit for a complete list of contributors and copyrights.\n",
691 (void) fputs ("\n", stdout
);
692 (void) fputs ("CVS may be copied only under the terms of the GNU General Public License,\n", stdout
);
693 (void) fputs ("a copy of which can be found with the CVS distribution kit.\n", stdout
);
694 (void) fputs ("\n", stdout
);
696 (void) fputs ("Specify the --help option for further information about CVS\n", stdout
);
701 /* This option used to specify the directory for RCS
702 executables. But since we don't run them any more,
703 this is a noop. Silently ignore it so that .cvsrc
704 and scripts and inetd.conf and such can work with
705 either new or old CVS. */
708 if (tmpdir_cmdline
) free (tmpdir_cmdline
);
709 tmpdir_cmdline
= xstrdup (optarg
);
712 if (free_Editor
) free (Editor
);
713 Editor
= xstrdup (optarg
);
717 if (CVSroot_cmdline
!= NULL
)
718 free (CVSroot_cmdline
);
719 CVSroot_cmdline
= xstrdup (optarg
);
725 use_cvsrc
= 0; /* unnecessary, since we've done it above */
728 #ifdef CLIENT_SUPPORT
729 gzip_level
= strtol (optarg
, &end
, 10);
730 if (*end
!= '\0' || gzip_level
< 0 || gzip_level
> 9)
732 "gzip compression level must be between 0 and 9");
733 #endif /* CLIENT_SUPPORT */
734 /* If no CLIENT_SUPPORT, we just silently ignore the gzip
735 * level, so that users can have it in their .cvsrc and not
738 * We still parse the argument to -z for correctness since
739 * one user complained of being bitten by a run of
740 * `cvs -z -n up' which read -n as the argument to -z without
744 variable_set (optarg
);
747 #ifdef CLIENT_SUPPORT
749 #endif /* CLIENT_SUPPORT */
750 /* If no CLIENT_SUPPORT, ignore -x, so that users can
751 have it in their .cvsrc and not cause any trouble.
752 If no ENCRYPTION, we still accept -x, but issue an
753 error if we are being run as a client. */
756 #ifdef CLIENT_SUPPORT
759 /* If no CLIENT_SUPPORT, ignore -a, so that users can
760 have it in their .cvsrc and not cause any trouble.
761 We will issue an error later if stream
762 authentication is not supported. */
775 /* This is just too much output */
777 if (readonlyfs && !really_quiet) {
779 "WARNING: Read-only repository access mode selected via `cvs -R'.\n\
780 Using this option to access a repository which some users write to may\n\
781 cause intermittent sandbox corruption.");
785 /* Calculate the cvs global session ID */
788 char buf
[COMMITID_RAW_SIZE
] = { 0, };
789 char out
[COMMITID_RAW_SIZE
* 2];
791 time_t rightnow
= time (NULL
);
792 char *startrand
= buf
+ sizeof (time_t);
793 unsigned char *p
= (unsigned char *) startrand
;
794 size_t randbytes
= RANDOM_BYTES
;
795 int flags
= O_RDONLY
;
800 if (rightnow
!= (time_t)-1)
801 while (rightnow
> 0) {
802 *--p
= rightnow
% (UCHAR_MAX
+ 1);
803 rightnow
/= UCHAR_MAX
+ 1;
806 /* try to use more random data */
807 randbytes
= COMMITID_RAW_SIZE
;
810 fd
= open ("/dev/urandom", flags
);
812 len
= read (fd
, startrand
, randbytes
);
816 /* no random data was available so use pid */
817 long int pid
= (long int)getpid ();
818 p
= (unsigned char *) (startrand
+ sizeof (pid
));
820 *--p
= pid
% (UCHAR_MAX
+ 1);
821 pid
/= UCHAR_MAX
+ 1;
825 global_session_id
= strdup (out
);
829 TRACE (TRACE_FUNCTION
, "main: Session ID is %s", global_session_id
);
831 /* Look up the command name. */
833 cvs_cmd_name
= argv
[0];
834 for (cm
= cmds
; cm
->fullname
; cm
++)
836 if (cm
->nick1
&& !strcmp (cvs_cmd_name
, cm
->nick1
))
838 if (cm
->nick2
&& !strcmp (cvs_cmd_name
, cm
->nick2
))
840 if (!strcmp (cvs_cmd_name
, cm
->fullname
))
846 fprintf (stderr
, "Unknown command: `%s'\n\n", cvs_cmd_name
);
850 cvs_cmd_name
= cm
->fullname
; /* Global pointer for later use */
854 argc
= -1; /* some functions only check for this */
855 err
= (*(cm
->func
)) (argc
, argv
);
859 /* The user didn't ask for help, so go ahead and authenticate,
860 set up CVSROOT, and the rest of it. */
862 short int lock_cleanup_setup
= 0;
864 /* The UMASK environment variable isn't handled with the
865 others above, since we don't want to signal errors if the
866 user has asked for help. This won't work if somebody adds
867 a command-line flag to set the umask, since we'll have to
868 parse it before we get here. */
870 if ((cp
= getenv (CVSUMASK_ENV
)) != NULL
)
872 /* FIXME: Should be accepting symbolic as well as numeric mask. */
873 cvsumask
= strtol (cp
, &end
, 8) & 0777;
875 error (1, errno
, "invalid umask value in %s (%s)",
879 /* HOSTNAME & SERVER_HOSTNAME need to be set before they are
880 * potentially used in gserver_authenticate_connection() (called from
881 * pserver_authenticate_connection, below).
883 hostname
= xgethostname ();
887 "xgethostname () returned NULL, using \"localhost\"");
888 hostname
= xstrdup ("localhost");
891 /* Keep track of this separately since the client can change
892 * HOSTNAME on the server.
894 server_hostname
= xstrdup (hostname
);
896 #ifdef SERVER_SUPPORT
898 # ifdef HAVE_KERBEROS
899 /* If we are invoked with a single argument "kserver", then we are
900 running as Kerberos server as root. Do the authentication as
901 the very first thing, to minimize the amount of time we are
903 if (strcmp (cvs_cmd_name
, "kserver") == 0)
905 kserver_authenticate_connection ();
907 /* Pretend we were invoked as a plain server. */
908 cvs_cmd_name
= "server";
910 # endif /* HAVE_KERBEROS */
912 # if defined (AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)
913 if (strcmp (cvs_cmd_name
, "pserver") == 0)
915 /* The reason that --allow-root is not a command option
916 is mainly that it seems easier to make it a global option. */
918 /* Gets username and password from client, authenticates, then
919 switches to run as that user and sends an ACK back to the
921 pserver_authenticate_connection ();
923 /* Pretend we were invoked as a plain server. */
924 cvs_cmd_name
= "server";
926 # endif /* AUTH_SERVER_SUPPORT || HAVE_GSSAPI */
927 #endif /* SERVER_SUPPORT */
929 server_active
= strcmp (cvs_cmd_name
, "server") == 0;
931 #ifdef SERVER_SUPPORT
934 /* This is only used for writing into the history file. For
935 remote connections, it might be nice to have hostname
936 and/or remote path, on the other hand I'm not sure whether
937 it is worth the trouble. */
938 CurDir
= xstrdup ("<remote>");
939 cleanup_register (server_cleanup
);
944 cleanup_register (close_stdout
);
947 error (1, errno
, "cannot get working directory");
952 /* XXX pid < 10^32 */
953 val
= Xasprintf ("%ld", (long) getpid ());
954 setenv (CVS_PID_ENV
, val
, 1);
958 /* make sure we clean up on error */
959 signals_register (main_cleanup
);
961 #ifdef KLUDGE_FOR_WNT_TESTSUITE
962 /* Probably the need for this will go away at some point once
963 we call fflush enough places (e.g. fflush (stdout) in
965 (void) setvbuf (stdout
, NULL
, _IONBF
, 0);
966 (void) setvbuf (stderr
, NULL
, _IONBF
, 0);
967 #endif /* KLUDGE_FOR_WNT_TESTSUITE */
970 read_cvsrc (&argc
, &argv
, cvs_cmd_name
);
972 /* Fiddling with CVSROOT doesn't make sense if we're running
973 * in server mode, since the client will send the repository
974 * directory after the connection is made.
978 /* First check if a root was set via the command line. */
981 if (!(CVSroot_parsed
= parse_cvsroot (CVSroot_cmdline
)))
982 error (1, 0, "Bad CVSROOT: `%s'.", CVSroot_cmdline
);
985 /* See if we are able to find a 'better' value for CVSroot
986 * in the CVSADM_ROOT directory.
988 * "cvs import" shouldn't check CVS/Root; in general it
989 * ignores CVS directories and CVS/Root is likely to
990 * specify a different repository than the one we are
991 * importing to, but if this is not import and no root was
992 * specified on the command line, set the root from the
996 && !(cm
->attr
& CVS_CMD_IGNORE_ADMROOT
)
998 CVSroot_parsed
= Name_Root (NULL
, NULL
);
1000 /* Now, if there is no root on the command line and we didn't find
1001 * one in a file, set it via the $CVSROOT env var.
1003 if (!CVSroot_parsed
)
1005 char *tmp
= getenv (CVSROOT_ENV
);
1008 if (!(CVSroot_parsed
= parse_cvsroot (tmp
)))
1009 error (1, 0, "Bad CVSROOT: `%s'.", tmp
);
1010 cvsroot_update_env
= false;
1015 if (!CVSroot_parsed
)
1017 if (!(CVSroot_parsed
= parse_cvsroot (CVSROOT_DFLT
)))
1018 error (1, 0, "Bad CVSROOT: `%s'.", CVSROOT_DFLT
);
1020 #endif /* CVSROOT_DFLT */
1022 /* Now we've reconciled CVSROOT from the command line, the
1023 CVS/Root file, and the environment variable. Do the
1024 last sanity checks on the variable. */
1025 if (!CVSroot_parsed
)
1028 "No CVSROOT specified! Please use the `-d' option");
1030 "or set the %s environment variable.", CVSROOT_ENV
);
1034 /* Here begins the big loop over unique cvsroot values. We
1035 need to call do_recursion once for each unique value found
1036 in CVS/Root. Prime the list with the current value. */
1038 /* Create the list. */
1039 assert (root_directories
== NULL
);
1040 root_directories
= getlist ();
1047 n
->type
= NT_UNKNOWN
;
1048 n
->key
= xstrdup (CVSroot_parsed
->original
);
1049 n
->data
= CVSroot_parsed
;
1051 if (addnode (root_directories
, n
))
1052 error (1, 0, "cannot add initial CVSROOT %s", n
->key
);
1055 assert (current_parsed_root
== NULL
);
1057 /* If we're running the server, we want to execute this main
1058 loop once and only once (we won't be serving multiple roots
1059 from this connection, so there's no need to do it more than
1060 once). To get out of the loop, we perform a "break" at the
1063 while (server_active
||
1064 walklist (root_directories
, set_root_directory
, NULL
))
1066 /* Fiddling with CVSROOT doesn't make sense if we're running
1067 in server mode, since the client will send the repository
1068 directory after the connection is made. */
1072 /* Now we're 100% sure that we have a valid CVSROOT
1073 variable. Parse it to see if we're supposed to do
1074 remote accesses or use a special access method. */
1076 TRACE (TRACE_FUNCTION
,
1077 "main loop with CVSROOT=%s",
1078 current_parsed_root
? current_parsed_root
->directory
1082 * Check to see if the repository exists.
1084 if (!current_parsed_root
->isremote
)
1089 path
= Xasprintf ("%s/%s", current_parsed_root
->directory
,
1091 if (!isaccessible (path
, R_OK
| X_OK
))
1094 /* If this is "cvs init", the root need not exist yet.
1096 if (strcmp (cvs_cmd_name
, "init"))
1097 error (1, save_errno
, "%s", path
);
1102 /* Update the CVSROOT environment variable. */
1103 if (cvsroot_update_env
)
1104 setenv (CVSROOT_ENV
, current_parsed_root
->original
, 1);
1107 /* Parse the CVSROOT/config file, but only for local. For the
1108 server, we parse it after we know $CVSROOT. For the
1109 client, it doesn't get parsed at all, obviously. The
1110 presence of the parse_config call here is not meant to
1111 predetermine whether CVSROOT/config overrides things from
1112 read_cvsrc and other such places or vice versa. That sort
1113 of thing probably needs more thought. */
1114 if (!server_active
&& !current_parsed_root
->isremote
)
1116 /* If there was an error parsing the config file, parse_config
1117 already printed an error. We keep going. Why? Because
1118 if we didn't, then there would be no way to check in a new
1119 CVSROOT/config file to fix the broken one! */
1120 if (config
) free_config (config
);
1121 config
= parse_config (current_parsed_root
->directory
, NULL
);
1123 /* Can set TMPDIR in the environment if necessary now, since
1124 * if it was set in config, we now know it.
1126 push_env_temp_dir ();
1129 #ifdef CLIENT_SUPPORT
1130 /* Need to check for current_parsed_root != NULL here since
1131 * we could still be in server mode before the server function
1132 * gets called below and sets the root
1134 if (current_parsed_root
!= NULL
&& current_parsed_root
->isremote
)
1136 /* Create a new list for directory names that we've
1137 sent to the server. */
1138 if (dirs_sent_to_server
!= NULL
)
1139 dellist (&dirs_sent_to_server
);
1140 dirs_sent_to_server
= getlist ();
1145 #ifdef SERVER_SUPPORT
1146 /* Don't worry about lock_cleanup_setup when the server is
1147 * active since we can only go through this loop once in that
1153 #ifdef CLIENT_SUPPORT
1154 !current_parsed_root
->isremote
&&
1156 !lock_cleanup_setup
))
1158 /* Set up to clean up any locks we might create on exit. */
1159 cleanup_register (Lock_Cleanup
);
1160 lock_cleanup_setup
= 1;
1163 /* Call our worker function. */
1164 err
= (*(cm
->func
)) (argc
, argv
);
1166 /* Mark this root directory as done. When the server is
1167 active, our list will be empty -- don't try and
1168 remove it from the list. */
1172 Node
*n
= findnode (root_directories
,
1173 original_parsed_root
->original
);
1175 assert (n
->data
!= NULL
);
1177 current_parsed_root
= NULL
;
1182 } /* end of loop for cvsroot values */
1184 dellist (&root_directories
);
1185 } /* end of stuff that gets done if the user DOESN'T ask for help */
1189 /* This is exit rather than return because apparently that keeps
1190 some tools which check for memory leaks happier. */
1191 exit (err
? EXIT_FAILURE
: 0);
1192 /* Keep picky/stupid compilers (e.g. Visual C++ 5.0) happy. */
1199 Make_Date (const char *rawdate
)
1203 if (!get_date (&t
, rawdate
, NULL
))
1204 error (1, 0, "Can't parse date/time: `%s'", rawdate
);
1206 /* Truncate nanoseconds. */
1207 return date_from_time_t (t
.tv_sec
);
1212 /* Parse a string of the form TAG[:DATE], where TAG could be the empty string.
1215 * input The string to be parsed.
1218 * tag The tag found, if any. If TAG is the empty string, then leave
1219 * this value unchanged.
1220 * date The date found, if any. If DATE is the empty string or is
1221 * missing, leave this value unchanged.
1224 * If either TAG or DATE is replaced for output, the previous value is freed.
1227 * If either TAG or DATE cannot be parsed, then this function will exit with
1228 * a fatal error message.
1234 parse_tagdate (char **tag
, char **date
, const char *input
)
1238 TRACE (TRACE_FUNCTION
, "parse_tagdate (%s, %s, %s)",
1239 *tag
? *tag
: "(null)", *date
? *date
: "(null)",
1242 if ((p
= strchr (input
, ':')))
1244 /* Parse the tag. */
1247 /* The tag has > 0 length. */
1248 if (*tag
) free (*tag
);
1249 *tag
= xmalloc (p
- input
+ 1);
1250 strncpy (*tag
, input
, p
- input
);
1251 (*tag
)[p
- input
] = '\0';
1254 /* Parse the date. */
1257 if (*date
) free (*date
);
1258 *date
= Make_Date (p
);
1261 else if (strlen (input
))
1263 /* The tag has > 0 length. */
1264 if (*tag
) free (*tag
);
1265 *tag
= xstrdup (input
);
1268 TRACE (TRACE_DATA
, "parse_tagdate: got tag = `%s', date = `%s'",
1269 *tag
? *tag
: "(null)", *date
? *date
: "(null)");
1274 /* Convert a time_t to an RCS format date. This is mainly for the
1275 use of "cvs history", because the CVSROOT/history file contains
1276 time_t format dates; most parts of CVS will want to avoid using
1277 time_t's directly, and instead use RCS_datecmp, Make_Date, &c.
1278 Assuming that the time_t is in GMT (as it generally should be),
1279 then the result will be in GMT too.
1281 Returns a newly malloc'd string. */
1284 date_from_time_t (time_t unixtime
)
1287 char date
[MAXDATELEN
];
1290 ftm
= gmtime (&unixtime
);
1292 /* This is a system, like VMS, where the system clock is in local
1293 time. Hopefully using localtime here matches the "zero timezone"
1294 hack I added to get_date (get_date of course being the relevant
1295 issue for Make_Date, and for history.c too I think). */
1296 ftm
= localtime (&unixtime
);
1298 (void) sprintf (date
, DATEFORM
,
1299 ftm
->tm_year
+ (ftm
->tm_year
< 100 ? 0 : 1900),
1300 ftm
->tm_mon
+ 1, ftm
->tm_mday
, ftm
->tm_hour
,
1301 ftm
->tm_min
, ftm
->tm_sec
);
1302 ret
= xstrdup (date
);
1308 /* Convert a date to RFC822/1123 format. This is used in contexts like
1309 dates to send in the protocol; it should not vary based on locale or
1310 other such conventions for users. We should have another routine which
1311 does that kind of thing.
1313 The SOURCE date is in our internal RCS format. DEST should point to
1314 storage managed by the caller, at least MAXDATELEN characters. */
1316 date_to_internet (char *dest
, const char *source
)
1320 date_to_tm (&date
, source
);
1321 tm_to_internet (dest
, &date
);
1327 date_to_tm (struct tm
*dest
, const char *source
)
1329 if (sscanf (source
, SDATEFORM
,
1330 &dest
->tm_year
, &dest
->tm_mon
, &dest
->tm_mday
,
1331 &dest
->tm_hour
, &dest
->tm_min
, &dest
->tm_sec
)
1333 /* Is there a better way to handle errors here? I made this
1334 non-fatal in case we are called from the code which can't
1335 deal with fatal errors. */
1336 error (0, 0, "internal error: bad date %s", source
);
1338 if (dest
->tm_year
> 100)
1339 dest
->tm_year
-= 1900;
1346 /* Convert a date to RFC822/1123 format. This is used in contexts like
1347 dates to send in the protocol; it should not vary based on locale or
1348 other such conventions for users. We should have another routine which
1349 does that kind of thing.
1351 The SOURCE date is a pointer to a struct tm. DEST should point to
1352 storage managed by the caller, at least MAXDATELEN characters. */
1354 tm_to_internet (char *dest
, const struct tm
*source
)
1356 /* Just to reiterate, these strings are from RFC822 and do not vary
1357 according to locale. */
1358 static const char *const month_names
[] =
1359 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
1360 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
1362 sprintf (dest
, "%d %s %d %02d:%02d:%02d -0000", source
->tm_mday
,
1363 source
->tm_mon
< 0 || source
->tm_mon
> 11
1364 ? "???" : month_names
[source
->tm_mon
],
1365 source
->tm_year
+ 1900, source
->tm_hour
, source
->tm_min
,
1372 * Format a date for the current locale.
1375 * UNIXTIME The UNIX seconds since the epoch.
1378 * If my_strftime() encounters an error, this function can return NULL.
1380 * Otherwise, returns a date string in ISO8601 format, e.g.:
1382 * 2004-04-29 13:24:22 -0700
1384 * It is the responsibility of the caller to return of this string.
1387 format_time_t (time_t unixtime
)
1389 static char buf
[sizeof ("yyyy-mm-dd HH:MM:SS -HHMM")];
1390 /* Convert to a time in the local time zone. */
1391 struct tm ltm
= *(localtime (&unixtime
));
1393 if (!my_strftime (buf
, sizeof (buf
), "%Y-%m-%d %H:%M:%S %z", <m
, 0, 0))
1396 return xstrdup (buf
);
1401 /* Like format_time_t(), but return time in UTC.
1404 gmformat_time_t (time_t unixtime
)
1406 static char buf
[sizeof ("yyyy-mm-dd HH:MM:SS -HHMM")];
1407 /* Convert to a time in the local time zone. */
1408 struct tm ltm
= *(gmtime (&unixtime
));
1410 if (!my_strftime (buf
, sizeof (buf
), "%Y-%m-%d %H:%M:%S %z", <m
, 0, 0))
1413 return xstrdup (buf
);
1418 /* Format a date in the local timezone using format_time_t() given a date from
1419 * an arbitrary timezone in a string.
1422 * DATESTR A string that looks like anything get_date() can parse, e.g.:
1424 * 2004-04-29 20:24:22
1427 * As get_date() & format_time_t(). Prints a warning if either provide
1428 * error return values. See RETURNS.
1431 * A freshly allocated string that is a copy of the input string if either
1432 * get_date() or format_time_t() encounter an error and as format_time_t()
1436 format_date_alloc (char *datestr
)
1441 TRACE (TRACE_FUNCTION
, "format_date (%s)", datestr
);
1443 /* Convert the date string to seconds since the epoch. */
1444 if (!get_date (&t
, datestr
, NULL
))
1446 error (0, 0, "Can't parse date/time: `%s'.", datestr
);
1450 /* Get the time into a string, truncating any nanoseconds returned by
1453 if ((buf
= format_time_t (t
.tv_sec
)) == NULL
)
1455 error (0, 0, "Unable to reformat date `%s'.", datestr
);
1462 return xstrdup (datestr
);
1468 usage (register const char *const *cpp
)
1470 (void) fprintf (stderr
, *cpp
++, program_name
, cvs_cmd_name
);
1472 (void) fprintf (stderr
, *cpp
);
1473 exit (EXIT_FAILURE
);
1476 /* vim:tabstop=8:shiftwidth=4