/* * Copyright (c) 1992, Brian Berliner and Jeff Polk * Copyright (c) 1989-1992, Brian Berliner * * You may distribute under the terms of the GNU General Public License * as specified in the README file that comes with the CVS source distribution. * * This is the main C driver for the CVS system. * * Credit to Dick Grune, Vrije Universiteit, Amsterdam, for writing * the shell-script CVS system that this is based on. * */ #include #include "cvs.h" #ifdef HAVE_WINSOCK_H #include #else extern int gethostname (); #endif char *program_name; char *program_path; char *command_name; char *global_session_id; /* Random session ID */ /* I'd dynamically allocate this, but it seems like gethostname requires a fixed size array. If I'm remembering the RFCs right, 256 should be enough. */ #ifndef MAXHOSTNAMELEN #define MAXHOSTNAMELEN 256 #endif char hostname[MAXHOSTNAMELEN]; int use_editor = 1; int use_cvsrc = 1; int cvswrite = !CVSREAD_DFLT; int really_quiet = 0; int quiet = 0; int trace = 0; int noexec = 0; int readonlyfs = 0; int logoff = 0; /* Set if we should be writing CVSADM directories at top level. At least for now we'll make the default be off (the CVS 1.9, not CVS 1.9.2, behavior). */ int top_level_admin = 0; mode_t cvsumask = UMASK_DFLT; char *RCS_citag = NULL; int disable_mdocdate = 0; char *CurDir; /* * Defaults, for the environment variables that are not set */ char *Tmpdir = TMPDIR_DFLT; char *Editor = EDITOR_DFLT; /* When our working directory contains subdirectories with different values in CVS/Root files, we maintain a list of them. */ List *root_directories = NULL; /* We step through the above values. This variable is set to reflect * the currently active value. * * Now static. FIXME - this variable should be removable (well, localizable) * with a little more work. */ static char *current_root = NULL; static const struct cmd { char *fullname; /* Full name of the function (e.g. "commit") */ /* Synonyms for the command, nick1 and nick2. We supply them mostly for two reasons: (1) CVS has always supported them, and we need to maintain compatibility, (2) if there is a need for a version which is shorter than the fullname, for ease in typing. Synonyms have the disadvantage that people will see "new" and then have to think about it, or look it up, to realize that is the operation they know as "add". Also, this means that one cannot create a command "cvs new" with a different meaning. So new synonyms are probably best used sparingly, and where used should be abbreviations of the fullname (preferably consisting of the first 2 or 3 or so letters). One thing that some systems do is to recognize any unique abbreviation, for example "annotat" "annota", etc., for "annotate". The problem with this is that scripts and user habits will expect a certain abbreviation to be unique, and in a future release of CVS it may not be. So it is better to accept only an explicit list of abbreviations and plan on supporting them in the future as well as now. */ char *nick1; char *nick2; int (*func) (); /* Function takes (argc, argv) arguments. */ unsigned long attr; /* Attributes. */ } cmds[] = { { "add", "ad", "new", add, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "admin", "adm", "rcs", admin, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "annotate", "ann", "blame", annotate, CVS_CMD_USES_WORK_DIR }, { "checkout", "co", "get", checkout, 0 }, { "commit", "ci", "com", commit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "diff", "di", "dif", diff, CVS_CMD_USES_WORK_DIR }, { "edit", NULL, NULL, edit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "editors", NULL, NULL, editors, CVS_CMD_USES_WORK_DIR }, { "export", "exp", "ex", checkout, CVS_CMD_USES_WORK_DIR }, { "history", "hi", "his", history, CVS_CMD_USES_WORK_DIR }, { "import", "im", "imp", import, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR | CVS_CMD_IGNORE_ADMROOT}, { "init", NULL, NULL, init, CVS_CMD_MODIFIES_REPOSITORY }, #if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT) { "kserver", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, /* placeholder */ #endif { "log", "lo", NULL, cvslog, CVS_CMD_USES_WORK_DIR }, #ifdef AUTH_CLIENT_SUPPORT { "login", "logon", "lgn", login, 0 }, { "logout", NULL, NULL, logout, 0 }, #endif /* AUTH_CLIENT_SUPPORT */ #if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT) { "pserver", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, /* placeholder */ #endif { "rannotate","rann", "ra", annotate, 0 }, { "rdiff", "patch", "pa", patch, 0 }, { "release", "re", "rel", release, 0 }, { "remove", "rm", "delete", cvsremove, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "rlog", "rl", NULL, cvslog, 0 }, { "rtag", "rt", "rfreeze", cvstag, CVS_CMD_MODIFIES_REPOSITORY }, #ifdef SERVER_SUPPORT { "server", NULL, NULL, server, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, #endif { "status", "st", "stat", cvsstatus, CVS_CMD_USES_WORK_DIR }, { "tag", "ta", "freeze", cvstag, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "unedit", NULL, NULL, unedit, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "update", "up", "upd", update, CVS_CMD_USES_WORK_DIR }, { "version", "ve", "ver", version, 0 }, { "watch", NULL, NULL, watch, CVS_CMD_MODIFIES_REPOSITORY | CVS_CMD_USES_WORK_DIR }, { "watchers", NULL, NULL, watchers, CVS_CMD_USES_WORK_DIR }, { NULL, NULL, NULL, NULL, 0 }, }; static const char *const usg[] = { /* CVS usage messages never have followed the GNU convention of putting metavariables in uppercase. I don't know whether that is a good convention or not, but if it changes it would have to change in all the usage messages. For now, they consistently use lowercase, as far as I know. Puncutation is pretty funky, though. Sometimes they use none, as here. Sometimes they use single quotes (not the TeX-ish `' stuff), as in --help-options. Sometimes they use double quotes, as in cvs -H add. Most (not all) of the usage messages seem to have periods at the end of each line. I haven't tried to duplicate this style in --help as it is a rather different format from the rest. */ "Usage: %s [cvs-options] command [command-options-and-arguments]\n", " where cvs-options are -q, -n, etc.\n", " (specify --help-options for a list of options)\n", " where command is add, admin, etc.\n", " (specify --help-commands for a list of commands\n", " or --help-synonyms for a list of command synonyms)\n", " where command-options-and-arguments depend on the specific command\n", " (specify -H followed by a command name for command-specific help)\n", " Specify --help to receive this message\n", "\n", NULL, }; static const char *const cmd_usage[] = { "CVS commands are:\n", " add Add a new file/directory to the repository\n", " admin Administration front end for rcs\n", " annotate Show last revision where each line was modified\n", " checkout Checkout sources for editing\n", " commit Check files into the repository\n", " diff Show differences between revisions\n", " edit Get ready to edit a watched file\n", " editors See who is editing a watched file\n", " export Export sources from CVS, similar to checkout\n", " history Show repository access history\n", " import Import sources into CVS, using vendor branches\n", " init Create a CVS repository if it doesn't exist\n", #if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT) " kserver Kerberos server mode\n", #endif " log Print out history information for files\n", #ifdef AUTH_CLIENT_SUPPORT " login Prompt for password for authenticating server\n", " logout Removes entry in .cvspass for remote repository\n", #endif /* AUTH_CLIENT_SUPPORT */ #if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT) " pserver Password server mode\n", #endif " rannotate Show last revision where each line of module was modified\n", " rdiff Create 'patch' format diffs between releases\n", " release Indicate that a Module is no longer in use\n", " remove Remove an entry from the repository\n", " rlog Print out history information for a module\n", " rtag Add a symbolic tag to a module\n", #ifdef SERVER_SUPPORT " server Server mode\n", #endif " status Display status information on checked out files\n", " tag Add a symbolic tag to checked out version of files\n", " unedit Undo an edit command\n", " update Bring work tree in sync with repository\n", " version Show current CVS version(s)\n", " watch Set watches\n", " watchers See who is watching a file\n", "(Specify the --help option for a list of other help options)\n", NULL, }; static const char *const opt_usage[] = { /* Omit -b because it is just for compatibility. */ "CVS global options (specified before the command name) are:\n", " -H Displays usage information for command.\n", " -Q Cause CVS to be really quiet.\n", " -q Cause CVS to be somewhat quiet.\n", " -r Make checked-out files read-only.\n", " -w Make checked-out files read-write (default).\n", " -l Turn history logging off.\n", " -n Do not execute anything that will change the disk.\n", " -t Show trace of program execution -- try with -n.\n", " -v CVS version and copyright.\n", " -R Read-only repository.\n", " -T tmpdir Use 'tmpdir' for temporary files.\n", " -e editor Use 'editor' for editing log information.\n", " -d CVS_root Overrides $CVSROOT as the root of the CVS tree.\n", " -f Do not use the ~/.cvsrc file.\n", #ifdef CLIENT_SUPPORT " -z # Use compression level '#' for net traffic.\n", #ifdef ENCRYPTION " -x Encrypt all net traffic.\n", #endif " -a Authenticate all net traffic.\n", #endif " -s VAR=VAL Set CVS user variable.\n", "(Specify the --help option for a list of other help options)\n", NULL }; static int set_root_directory (p, ignored) Node *p; void *ignored; { if (current_root == NULL && p->data == NULL) { current_root = p->key; return 1; } return 0; } static const char * const* cmd_synonyms () { char ** synonyms; char ** line; const struct cmd *c = &cmds[0]; /* Three more for title, "specify --help" line, and NULL. */ int numcmds = 3; while (c->fullname != NULL) { numcmds++; c++; } synonyms = (char **) xmalloc(numcmds * sizeof(char *)); line = synonyms; *line++ = "CVS command synonyms are:\n"; for (c = &cmds[0]; c->fullname != NULL; c++) { if (c->nick1 || c->nick2) { *line = xmalloc (strlen (c->fullname) + (c->nick1 != NULL ? strlen (c->nick1) : 0) + (c->nick2 != NULL ? strlen (c->nick2) : 0) + 40); sprintf(*line, " %-12s %s %s\n", c->fullname, c->nick1 ? c->nick1 : "", c->nick2 ? c->nick2 : ""); line++; } } *line++ = "(Specify the --help option for a list of other help options)\n"; *line = NULL; return (const char * const*) synonyms; /* will never be freed */ } unsigned long int lookup_command_attribute (cmd_name) char *cmd_name; { const struct cmd *cm; for (cm = cmds; cm->fullname; cm++) { if (strcmp (cmd_name, cm->fullname) == 0) break; } return cm->attr; } static RETSIGTYPE main_cleanup (sig) int sig; { #ifndef DONT_USE_SIGNALS const char *name; char temp[10]; switch (sig) { #ifdef SIGABRT case SIGABRT: name = "abort"; break; #endif #ifdef SIGHUP case SIGHUP: name = "hangup"; break; #endif #ifdef SIGINT case SIGINT: name = "interrupt"; break; #endif #ifdef SIGQUIT case SIGQUIT: name = "quit"; break; #endif #ifdef SIGPIPE case SIGPIPE: name = "broken pipe"; break; #endif #ifdef SIGTERM case SIGTERM: name = "termination"; break; #endif default: /* This case should never be reached, because we list above all the signals for which we actually establish a signal handler. */ sprintf (temp, "%d", sig); name = temp; break; } error (1, 0, "received %s signal", name); #endif /* !DONT_USE_SIGNALS */ } int main (argc, argv) int argc; char **argv; { char *CVSroot = CVSROOT_DFLT; char *cp, *end; const struct cmd *cm; int c, err = 0; int tmpdir_update_env, cvs_update_env; int free_CVSroot = 0; int free_Editor = 0; int free_Tmpdir = 0; int help = 0; /* Has the user asked for help? This lets us support the `cvs -H cmd' convention to give help for cmd. */ static const char short_options[] = "+Qqrwtnlvb:T:e:d:Hfz:s:xaR"; static struct option long_options[] = { {"help", 0, NULL, 'H'}, {"version", 0, NULL, 'v'}, {"help-commands", 0, NULL, 1}, {"help-synonyms", 0, NULL, 2}, {"help-options", 0, NULL, 4}, {"allow-root", required_argument, NULL, 3}, {0, 0, 0, 0} }; /* `getopt_long' stores the option index here, but right now we don't use it. */ int option_index = 0; #ifdef SYSTEM_INITIALIZE /* Hook for OS-specific behavior, for example socket subsystems on NT and OS2 or dealing with windows and arguments on Mac. */ SYSTEM_INITIALIZE (&argc, &argv); #endif #ifdef HAVE_TZSET /* On systems that have tzset (which is almost all the ones I know of), it's a good idea to call it. */ tzset (); #endif /* * Just save the last component of the path for error messages */ program_path = xstrdup (argv[0]); #ifdef ARGV0_NOT_PROGRAM_NAME /* On some systems, e.g. VMS, argv[0] is not the name of the command which the user types to invoke the program. */ program_name = "cvs"; #else program_name = last_component (argv[0]); #endif if (pledge("stdio rpath wpath cpath fattr getpw proc exec inet dns tty", NULL) == -1) error (1, errno, "pledge init"); /* * Query the environment variables up-front, so that * they can be overridden by command line arguments */ cvs_update_env = 0; tmpdir_update_env = *Tmpdir; /* TMPDIR_DFLT must be set */ if ((cp = getenv (TMPDIR_ENV)) != NULL) { Tmpdir = cp; tmpdir_update_env = 0; /* it's already there */ } if ((cp = getenv (EDITOR1_ENV)) != NULL) Editor = cp; else if ((cp = getenv (EDITOR2_ENV)) != NULL) Editor = cp; else if ((cp = getenv (EDITOR3_ENV)) != NULL) Editor = cp; if ((cp = getenv (CVSROOT_ENV)) != NULL) { CVSroot = cp; cvs_update_env = 0; /* it's already there */ } if (getenv (CVSREAD_ENV) != NULL) cvswrite = 0; if (getenv (CVSREADONLYFS_ENV)) { readonlyfs = 1; logoff = 1; } /* Set this to 0 to force getopt initialization. getopt() sets this to 1 internally. */ optind = 0; /* We have to parse the options twice because else there is no chance to avoid reading the global options from ".cvsrc". Set opterr to 0 for avoiding error messages about invalid options. */ opterr = 0; while ((c = getopt_long (argc, argv, short_options, long_options, &option_index)) != EOF) { if (c == 'f') use_cvsrc = 0; } /* * Scan cvsrc file for global options. */ if (use_cvsrc) read_cvsrc (&argc, &argv, "cvs"); optind = 0; opterr = 1; while ((c = getopt_long (argc, argv, short_options, long_options, &option_index)) != EOF) { switch (c) { case 1: /* --help-commands */ usage (cmd_usage); break; case 2: /* --help-synonyms */ usage (cmd_synonyms()); break; case 4: /* --help-options */ usage (opt_usage); break; case 3: /* --allow-root */ root_allow_add (optarg); break; case 'Q': really_quiet = 1; /* FALL THROUGH */ case 'q': quiet = 1; break; case 'r': cvswrite = 0; break; case 'w': cvswrite = 1; break; case 't': trace = 1; break; case 'n': noexec = 1; case 'l': /* Fall through */ logoff = 1; break; case 'R': logoff = 1; readonlyfs = 1; break; case 'v': (void) fputs ("\n", stdout); version (0, (char **) NULL); (void) fputs ("\n", stdout); (void) fputs ("\ Copyright (c) 1989-2001 Brian Berliner, david d `zoo' zuhn, \n\ Jeff Polk, and other authors\n", stdout); (void) fputs ("\n", stdout); (void) fputs ("CVS may be copied only under the terms of the GNU General Public License,\n", stdout); (void) fputs ("a copy of which can be found with the CVS distribution kit.\n", stdout); (void) fputs ("\n", stdout); (void) fputs ("Specify the --help option for further information about CVS\n", stdout); exit (0); break; case 'b': /* This option used to specify the directory for RCS executables. But since we don't run them any more, this is a noop. Silently ignore it so that .cvsrc and scripts and inetd.conf and such can work with either new or old CVS. */ break; case 'T': Tmpdir = xstrdup (optarg); free_Tmpdir = 1; tmpdir_update_env = 1; /* need to update environment */ break; case 'e': Editor = xstrdup (optarg); free_Editor = 1; break; case 'd': if (CVSroot_cmdline != NULL) free (CVSroot_cmdline); CVSroot_cmdline = xstrdup (optarg); if (free_CVSroot) free (CVSroot); CVSroot = xstrdup (optarg); free_CVSroot = 1; cvs_update_env = 1; /* need to update environment */ break; case 'H': help = 1; break; case 'f': use_cvsrc = 0; /* unnecessary, since we've done it above */ break; case 'z': #ifdef CLIENT_SUPPORT gzip_level = atoi (optarg); if (gzip_level < 0 || gzip_level > 9) error (1, 0, "gzip compression level must be between 0 and 9"); #endif /* If no CLIENT_SUPPORT, we just silently ignore the gzip level, so that users can have it in their .cvsrc and not cause any trouble. */ break; case 's': variable_set (optarg); break; case 'x': #ifdef CLIENT_SUPPORT cvsencrypt = 1; #endif /* CLIENT_SUPPORT */ /* If no CLIENT_SUPPORT, ignore -x, so that users can have it in their .cvsrc and not cause any trouble. If no ENCRYPTION, we still accept -x, but issue an error if we are being run as a client. */ break; case 'a': #ifdef CLIENT_SUPPORT cvsauthenticate = 1; #endif /* If no CLIENT_SUPPORT, ignore -a, so that users can have it in their .cvsrc and not cause any trouble. We will issue an error later if stream authentication is not supported. */ break; case '?': default: usage (usg); } } argc -= optind; argv += optind; if (argc < 1) usage (usg); /* Generate the cvs global session ID */ { int i = 0; u_int32_t c; global_session_id = xmalloc(17); while (i <= 16) { c = arc4random_uniform(75) + 48; if ((c >= 48 && c <= 57) || (c >= 65 && c <= 90) || (c >= 97 && c <= 122)) { global_session_id[i] = c; i++; } } global_session_id[16] = '\0'; } if (trace) fprintf (stderr, "main: Session ID is %s", global_session_id); /* Look up the command name. */ command_name = argv[0]; for (cm = cmds; cm->fullname; cm++) { if (cm->nick1 && !strcmp (command_name, cm->nick1)) break; if (cm->nick2 && !strcmp (command_name, cm->nick2)) break; if (!strcmp (command_name, cm->fullname)) break; } if (!cm->fullname) { fprintf (stderr, "Unknown command: `%s'\n\n", command_name); usage (cmd_usage); } else command_name = cm->fullname; /* Global pointer for later use */ if (help) { argc = -1; /* some functions only check for this */ err = (*(cm->func)) (argc, argv); } else { /* The user didn't ask for help, so go ahead and authenticate, set up CVSROOT, and the rest of it. */ /* The UMASK environment variable isn't handled with the others above, since we don't want to signal errors if the user has asked for help. This won't work if somebody adds a command-line flag to set the umask, since we'll have to parse it before we get here. */ if ((cp = getenv (CVSUMASK_ENV)) != NULL) { /* FIXME: Should be accepting symbolic as well as numeric mask. */ cvsumask = strtol (cp, &end, 8) & 0777; if (*end != '\0') error (1, errno, "invalid umask value in %s (%s)", CVSUMASK_ENV, cp); } #if defined (HAVE_KERBEROS) && defined (SERVER_SUPPORT) /* If we are invoked with a single argument "kserver", then we are running as Kerberos server as root. Do the authentication as the very first thing, to minimize the amount of time we are running as root. */ if (strcmp (command_name, "kserver") == 0) { kserver_authenticate_connection (); /* Pretend we were invoked as a plain server. */ command_name = "server"; } #endif /* HAVE_KERBEROS */ #if (defined(AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI)) && defined(SERVER_SUPPORT) if (strcmp (command_name, "pserver") == 0) { /* The reason that --allow-root is not a command option is mainly the comment in server() about how argc,argv might be from .cvsrc. I'm not sure about that, and I'm not sure it is only true of command options, but it seems easier to make it a global option. */ /* Gets username and password from client, authenticates, then switches to run as that user and sends an ACK back to the client. */ pserver_authenticate_connection (); /* Pretend we were invoked as a plain server. */ command_name = "server"; } #endif /* (AUTH_SERVER_SUPPORT || HAVE_GSSAPI) && SERVER_SUPPORT */ #ifdef SERVER_SUPPORT server_active = strcmp (command_name, "server") == 0; if (server_active) { if (pledge("stdio rpath wpath cpath fattr getpw proc exec", NULL) == -1) error (1, errno, "pledge"); } #endif /* This is only used for writing into the history file. For remote connections, it might be nice to have hostname and/or remote path, on the other hand I'm not sure whether it is worth the trouble. */ #ifdef SERVER_SUPPORT if (server_active) CurDir = xstrdup (""); else #endif { CurDir = xgetwd (); if (CurDir == NULL) error (1, errno, "cannot get working directory"); } if (Tmpdir == NULL || Tmpdir[0] == '\0') Tmpdir = "/tmp"; #ifdef HAVE_PUTENV if (tmpdir_update_env) { char *env; env = xmalloc (strlen (TMPDIR_ENV) + strlen (Tmpdir) + 1 + 1); (void) sprintf (env, "%s=%s", TMPDIR_ENV, Tmpdir); (void) putenv (env); /* do not free env, as putenv has control of it */ } #endif #ifndef DONT_USE_SIGNALS /* make sure we clean up on error */ #ifdef SIGABRT (void) SIG_register (SIGABRT, main_cleanup); #endif #ifdef SIGHUP (void) SIG_register (SIGHUP, main_cleanup); #endif #ifdef SIGINT (void) SIG_register (SIGINT, main_cleanup); #endif #ifdef SIGQUIT (void) SIG_register (SIGQUIT, main_cleanup); #endif #ifdef SIGPIPE (void) SIG_register (SIGPIPE, main_cleanup); #endif #ifdef SIGTERM (void) SIG_register (SIGTERM, main_cleanup); #endif #endif /* !DONT_USE_SIGNALS */ gethostname(hostname, sizeof (hostname)); #ifdef KLUDGE_FOR_WNT_TESTSUITE /* Probably the need for this will go away at some point once we call fflush enough places (e.g. fflush (stdout) in cvs_outerr). */ (void) setvbuf (stdout, (char *) NULL, _IONBF, 0); (void) setvbuf (stderr, (char *) NULL, _IONBF, 0); #endif /* KLUDGE_FOR_WNT_TESTSUITE */ if (use_cvsrc) read_cvsrc (&argc, &argv, command_name); #ifdef SERVER_SUPPORT /* Fiddling with CVSROOT doesn't make sense if we're running in server mode, since the client will send the repository directory after the connection is made. */ if (!server_active) #endif { char *CVSADM_Root; /* See if we are able to find a 'better' value for CVSroot in the CVSADM_ROOT directory. */ CVSADM_Root = NULL; /* "cvs import" shouldn't check CVS/Root; in general it ignores CVS directories and CVS/Root is likely to specify a different repository than the one we are importing to. */ if (!(cm->attr & CVS_CMD_IGNORE_ADMROOT) /* -d overrides CVS/Root, so don't give an error if the latter points to a nonexistent repository. */ && CVSroot_cmdline == NULL) { CVSADM_Root = Name_Root((char *) NULL, (char *) NULL); } if (CVSADM_Root != NULL) { if (CVSroot == NULL || !cvs_update_env) { CVSroot = CVSADM_Root; cvs_update_env = 1; /* need to update environment */ } } /* Now we've reconciled CVSROOT from the command line, the CVS/Root file, and the environment variable. Do the last sanity checks on the variable. */ if (! CVSroot) { error (0, 0, "No CVSROOT specified! Please use the `-d' option"); error (1, 0, "or set the %s environment variable.", CVSROOT_ENV); } if (! *CVSroot) { error (0, 0, "CVSROOT is set but empty! Make sure that the"); error (0, 0, "specification of CVSROOT is legal, either via the"); error (0, 0, "`-d' option, the %s environment variable, or the", CVSROOT_ENV); error (1, 0, "CVS/Root file (if any)."); } } /* Here begins the big loop over unique cvsroot values. We need to call do_recursion once for each unique value found in CVS/Root. Prime the list with the current value. */ /* Create the list. */ assert (root_directories == NULL); root_directories = getlist (); /* Prime it. */ if (CVSroot != NULL) { Node *n; n = getnode (); n->type = NT_UNKNOWN; n->key = xstrdup (CVSroot); n->data = NULL; if (addnode (root_directories, n)) error (1, 0, "cannot add initial CVSROOT %s", n->key); } assert (current_root == NULL); /* If we're running the server, we want to execute this main loop once and only once (we won't be serving multiple roots from this connection, so there's no need to do it more than once). To get out of the loop, we perform a "break" at the end of things. */ while ( #ifdef SERVER_SUPPORT server_active || #endif walklist (root_directories, set_root_directory, NULL) ) { #ifdef SERVER_SUPPORT /* Fiddling with CVSROOT doesn't make sense if we're running in server mode, since the client will send the repository directory after the connection is made. */ if (!server_active) #endif { /* Now we're 100% sure that we have a valid CVSROOT variable. Parse it to see if we're supposed to do remote accesses or use a special access method. */ if (current_parsed_root != NULL) free_cvsroot_t (current_parsed_root); if ((current_parsed_root = parse_cvsroot (current_root)) == NULL) error (1, 0, "Bad CVSROOT."); if (current_parsed_root->method == pserver_method) { if (strcmp(command_name, "login") == 0) { if (pledge("stdio rpath wpath cpath fattr getpw inet dns tty", NULL) == -1) error (1, errno, "pledge"); } else { if (pledge("stdio rpath wpath cpath fattr getpw proc exec inet dns", NULL) == -1) error (1, errno, "pledge"); } } else { if (pledge("stdio rpath wpath cpath fattr getpw proc exec", NULL) == -1) error (1, errno, "pledge"); } if (trace) fprintf (stderr, "%s-> main loop with CVSROOT=%s\n", CLIENT_SERVER_STR, current_root); /* * Check to see if the repository exists. */ #ifdef CLIENT_SUPPORT if (!current_parsed_root->isremote) #endif /* CLIENT_SUPPORT */ { char *path; int save_errno; path = xmalloc (strlen (current_parsed_root->directory) + sizeof (CVSROOTADM) + 20); (void) sprintf (path, "%s/%s", current_parsed_root->directory, CVSROOTADM); if (readonlyfs == 0 && !isaccessible (path, R_OK | X_OK)) { save_errno = errno; /* If this is "cvs init", the root need not exist yet. */ if (strcmp (command_name, "init") != 0) { error (1, save_errno, "%s", path); } } free (path); } #ifdef HAVE_PUTENV /* Update the CVSROOT environment variable if necessary. */ /* FIXME (njc): should we always set this with the CVSROOT from the command line? */ if (cvs_update_env) { static char *prev; char *env; env = xmalloc (strlen (CVSROOT_ENV) + strlen (CVSroot) + 1 + 1); (void) sprintf (env, "%s=%s", CVSROOT_ENV, CVSroot); (void) putenv (env); /* do not free env yet, as putenv has control of it */ /* but do free the previous value, if any */ if (prev != NULL) free (prev); prev = env; } #endif } /* Parse the CVSROOT/config file, but only for local. For the server, we parse it after we know $CVSROOT. For the client, it doesn't get parsed at all, obviously. The presence of the parse_config call here is not mean to predetermine whether CVSROOT/config overrides things from read_cvsrc and other such places or vice versa. That sort of thing probably needs more thought. */ if (1 #ifdef SERVER_SUPPORT && !server_active #endif #ifdef CLIENT_SUPPORT && !current_parsed_root->isremote #endif ) { /* If there was an error parsing the config file, parse_config already printed an error. We keep going. Why? Because if we didn't, then there would be no way to check in a new CVSROOT/config file to fix the broken one! */ parse_config (current_parsed_root->directory); } #ifdef CLIENT_SUPPORT /* Need to check for current_parsed_root != NULL here since * we could still be in server mode before the server function * gets called below and sets the root */ if (current_parsed_root != NULL && current_parsed_root->isremote) { /* Create a new list for directory names that we've sent to the server. */ if (dirs_sent_to_server != NULL) dellist (&dirs_sent_to_server); dirs_sent_to_server = getlist (); } #endif err = (*(cm->func)) (argc, argv); /* Mark this root directory as done. When the server is active, current_root will be NULL -- don't try and remove it from the list. */ if (current_root != NULL) { Node *n = findnode (root_directories, current_root); assert (n != NULL); n->data = (void *) 1; current_root = NULL; } #if 0 /* This will not work yet, since it tries to free (void *) 1. */ dellist (&root_directories); #endif #ifdef SERVER_SUPPORT if (server_active) break; #endif } /* end of loop for cvsroot values */ } /* end of stuff that gets done if the user DOESN'T ask for help */ Lock_Cleanup (); free (program_path); if (CVSroot_cmdline != NULL) free (CVSroot_cmdline); if (free_CVSroot) free (CVSroot); if (free_Editor) free (Editor); if (free_Tmpdir) free (Tmpdir); root_allow_free (); #ifdef SYSTEM_CLEANUP /* Hook for OS-specific behavior, for example socket subsystems on NT and OS2 or dealing with windows and arguments on Mac. */ SYSTEM_CLEANUP (); #endif /* This is exit rather than return because apparently that keeps some tools which check for memory leaks happier. */ exit (err ? EXIT_FAILURE : 0); /* Keep picky/stupid compilers (e.g. Visual C++ 5.0) happy. */ return 0; } char * Make_Date (rawdate) char *rawdate; { time_t unixtime; unixtime = get_date (rawdate); if (unixtime == (time_t) - 1) error (1, 0, "Can't parse date/time: %s", rawdate); return date_from_time_t (unixtime); } /* Convert a time_t to an RCS format date. This is mainly for the use of "cvs history", because the CVSROOT/history file contains time_t format dates; most parts of CVS will want to avoid using time_t's directly, and instead use RCS_datecmp, Make_Date, &c. Assuming that the time_t is in GMT (as it generally should be), then the result will be in GMT too. Returns a newly malloc'd string. */ char * date_from_time_t (unixtime) time_t unixtime; { struct tm *ftm; char date[MAXDATELEN]; char *ret; ftm = gmtime (&unixtime); if (ftm == NULL) /* This is a system, like VMS, where the system clock is in local time. Hopefully using localtime here matches the "zero timezone" hack I added to get_date (get_date of course being the relevant issue for Make_Date, and for history.c too I think). */ ftm = localtime (&unixtime); (void) sprintf (date, DATEFORM, ftm->tm_year + (ftm->tm_year < 100 ? 0 : 1900), ftm->tm_mon + 1, ftm->tm_mday, ftm->tm_hour, ftm->tm_min, ftm->tm_sec); ret = xstrdup (date); return (ret); } /* Convert a date to RFC822/1123 format. This is used in contexts like dates to send in the protocol; it should not vary based on locale or other such conventions for users. We should have another routine which does that kind of thing. The SOURCE date is in our internal RCS format. DEST should point to storage managed by the caller, at least MAXDATELEN characters. */ void date_to_internet (dest, source) char *dest; const char *source; { struct tm date; date_to_tm (&date, source); tm_to_internet (dest, &date); } void date_to_tm (dest, source) struct tm *dest; const char *source; { if (sscanf (source, SDATEFORM, &dest->tm_year, &dest->tm_mon, &dest->tm_mday, &dest->tm_hour, &dest->tm_min, &dest->tm_sec) != 6) /* Is there a better way to handle errors here? I made this non-fatal in case we are called from the code which can't deal with fatal errors. */ error (0, 0, "internal error: bad date %s", source); if (dest->tm_year > 100) dest->tm_year -= 1900; dest->tm_mon -= 1; } /* Convert a date to RFC822/1123 format. This is used in contexts like dates to send in the protocol; it should not vary based on locale or other such conventions for users. We should have another routine which does that kind of thing. The SOURCE date is a pointer to a struct tm. DEST should point to storage managed by the caller, at least MAXDATELEN characters. */ void tm_to_internet (dest, source) char *dest; const struct tm *source; { /* Just to reiterate, these strings are from RFC822 and do not vary according to locale. */ static const char *const month_names[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; sprintf (dest, "%d %s %d %02d:%02d:%02d -0000", source->tm_mday, source->tm_mon < 0 || source->tm_mon > 11 ? "???" : month_names[source->tm_mon], source->tm_year + 1900, source->tm_hour, source->tm_min, source->tm_sec); } void usage (cpp) register const char *const *cpp; { (void) fprintf (stderr, *cpp++, program_name, command_name); for (; *cpp; cpp++) (void) fprintf (stderr, *cpp); error_exit(); }