2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)docmd.c 8.1 (Berkeley) 6/9/93
30 * $FreeBSD: src/usr.bin/rdist/docmd.c,v 1.12 1999/08/28 01:05:06 peter Exp $
31 * $DragonFly: src/usr.bin/rdist/docmd.c,v 1.5 2008/10/16 01:52:32 swildner Exp $
34 #include <sys/types.h>
42 FILE *lfp; /* log file for recording files updated */
43 struct subcmd *subcmds; /* list of sub-commands for current cmd */
46 static int makeconn(char *);
47 static int okname(char *);
48 static void closeconn(void);
49 static void cmptime(char *);
50 static void doarrow(char **,
51 struct namelist *, char *, struct subcmd *);
52 static void dodcolon(char **,
53 struct namelist *, char *, struct subcmd *);
54 static void notify(char *, char *, struct namelist *, time_t);
55 static void rcmptime(struct stat *);
56 static int remotecmd(char *, char *, char *, char *);
59 * Do the commands in cmds (initialized by yyparse).
62 docmds(char **dhosts, int argc, char **argv)
67 extern struct cmd *cmds;
69 signal(SIGHUP, cleanup);
70 signal(SIGINT, cleanup);
71 signal(SIGQUIT, cleanup);
72 signal(SIGTERM, cleanup);
74 for (c = cmds; c != NULL; c = c->c_next) {
75 if (dhosts != NULL && *dhosts != NULL) {
76 for (cpp = dhosts; *cpp; cpp++)
77 if (strcmp(c->c_name, *cpp) == 0)
83 for (cpp = argv; *cpp; cpp++) {
84 if (c->c_label != NULL &&
85 strcmp(c->c_label, *cpp) == 0) {
89 for (f = c->c_files; f != NULL; f = f->n_next)
90 if (strcmp(f->n_name, *cpp) == 0)
99 doarrow(cpp, c->c_files, c->c_name, c->c_cmds);
102 dodcolon(cpp, c->c_files, c->c_name, c->c_cmds);
105 fatal("illegal command type %d\n", c->c_type);
112 * Process commands for sending files to other machines.
115 doarrow(char **filev, struct namelist *files, char *rhost, struct subcmd *cmds)
120 int n, ddir, opts = options;
123 printf("doarrow(%p, %s, %p)\n", files, rhost, cmds);
126 error("no files to be updated\n");
131 ddir = files->n_next != NULL; /* destination is a directory */
133 printf("updating host %s\n", rhost);
137 signal(SIGPIPE, lostconn);
138 if (!makeconn(rhost))
140 if ((lfp = fopen(tempfile, "w")) == NULL) {
141 fatal("cannot open %s\n", tempfile);
145 for (f = files; f != NULL; f = f->n_next) {
147 for (cpp = filev; *cpp; cpp++)
148 if (strcmp(f->n_name, *cpp) == 0)
156 for (sc = cmds; sc != NULL; sc = sc->sc_next) {
157 if (sc->sc_type != INSTALL)
160 install(f->n_name, sc->sc_name,
161 sc->sc_name == NULL ? 0 : ddir, sc->sc_options);
162 opts = sc->sc_options;
165 install(f->n_name, NULL, 0, options);
169 signal(SIGPIPE, cleanup);
174 for (sc = cmds; sc != NULL; sc = sc->sc_next)
175 if (sc->sc_type == NOTIFY)
176 notify(tempfile, rhost, sc->sc_args, 0);
178 struct linkbuf *nextihead;
181 for (; ihead != NULL; ihead = nextihead) {
182 nextihead = ihead->nextp;
183 if ((opts & IGNLNKS) || ihead->count == 0)
185 dolog(lfp, "%s: Warning: missing links\n",
192 static int remotecmd(char *rhost, char *luser, char *ruser, char *cmd)
195 static int port = -1;
198 printf("local user = %s remote user = %s\n", luser, ruser);
199 printf("Remote command = '%s'\n", cmd);
204 signal(SIGALRM, cleanup);
207 if (geteuid() == 0 && strcmp(path_rsh, _PATH_RSH) == 0) {
209 printf("I am root, therefore direct rcmd\n");
211 signal(SIGPIPE, cleanup);
216 if ((sp = getservbyname("shell", "tcp")) == NULL)
217 fatal("shell/tcp: unknown service");
221 desc = rcmd(&rhost, port, luser, ruser, cmd, 0);
224 printf("Remote shell command = '%s'\n", path_rsh);
225 signal(SIGPIPE, SIG_IGN);
226 desc = rshrcmd(&rhost, -1, luser, ruser, cmd, 0);
228 signal(SIGPIPE, cleanup);
238 * Create a connection to the rdist server on the machine rhost.
241 makeconn(char *rhost)
244 static char *cur_host = NULL;
245 static int port = -1;
249 #if defined(DIRECT_RCMD)
254 printf("makeconn(%s)\n", rhost);
256 if (cur_host != NULL && rem >= 0) {
257 if (strcmp(cur_host, rhost) == 0)
262 cp = index(rhost, '@');
267 strncpy(tuser, rhost, sizeof(tuser)-1);
273 else if (!okname(ruser))
278 printf("updating host %s\n", rhost);
279 snprintf(buf, sizeof(buf), "%s -Server%s", _PATH_RDIST, qflag ? " -q" : "");
283 if ((sp = getservbyname("shell", "tcp")) == NULL)
284 fatal("shell/tcp: unknown service");
289 printf("port = %d, luser = %s, ruser = %s\n", ntohs(port), user, ruser);
290 printf("buf = %s\n", buf);
294 #if defined(DIRECT_RCMD)
296 rem = rcmd(&rhost, port, user, ruser, buf, 0);
299 rem = remotecmd(rhost, user, ruser, buf);
304 if (read(rem, cp, 1) != 1)
308 if (read(rem, cp, 1) != 1)
310 } while (*cp++ != '\n' && cp < &buf[BUFSIZ]);
314 while (*cp >= '0' && *cp <= '9')
315 n = (n * 10) + (*cp++ - '0');
316 if (*cp == '\0' && n == VERSION)
318 error("connection failed: version numbers don't match (local %d, remote %d)\n", VERSION, n);
320 error("connection failed: version numbers don't match\n");
321 error("got unexpected input:");
324 } while (*cp != '\n' && read(rem, cp, 1) == 1);
331 * Signal end of previous connection.
337 printf("closeconn()\n");
340 write(rem, "\2\n", 2);
351 dolog(lfp, "rdist: lost connection\n");
367 if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
373 error("invalid user name %s\n", name);
379 extern char target[], *tp;
382 * Process commands for comparing files to time stamp files.
385 dodcolon(char **filev, struct namelist *files, char *stamp, struct subcmd *cmds)
390 struct timeval tv[2];
395 printf("dodcolon()\n");
398 error("no files to be updated\n");
401 if (stat(stamp, &stb) < 0) {
402 error("%s: %s\n", stamp, strerror(errno));
406 printf("%s: %ld\n", stamp, stb.st_mtime);
409 lastmod = stb.st_mtime;
410 if (nflag || (options & VERIFY))
413 if ((tfp = fopen(tempfile, "w")) == NULL) {
414 error("%s: %s\n", stamp, strerror(errno));
417 gettimeofday(&tv[0], &tz);
422 for (f = files; f != NULL; f = f->n_next) {
424 for (cpp = filev; *cpp; cpp++)
425 if (strcmp(f->n_name, *cpp) == 0)
436 for (sc = cmds; sc != NULL; sc = sc->sc_next)
437 if (sc->sc_type == NOTIFY)
438 notify(tempfile, NULL, sc->sc_args, lastmod);
439 if (!nflag && !(options & VERIFY))
444 * Compare the mtime of file to the list of time stamps.
452 printf("cmptime(%s)\n", name);
458 printf("comparing dates: %s\n", name);
463 * first time cmptime() is called?
466 if (exptilde(target, name, sizeof(target)) == NULL)
472 if (access(name, 4) < 0 || stat(name, &stb) < 0) {
473 error("%s: %s\n", name, strerror(errno));
477 switch (stb.st_mode & S_IFMT) {
486 error("%s: not a plain file\n", name);
490 if (stb.st_mtime > lastmod)
491 dolog(tfp, "new: %s\n", name);
495 rcmptime(struct stat *st)
504 printf("rcmptime(%p)\n", st);
506 if ((d = opendir(target)) == NULL) {
507 error("%s: %s\n", target, strerror(errno));
512 while ((dp = readdir(d))) {
513 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
515 if (len + 1 + strlen(dp->d_name) >= BUFSIZ - 1) {
516 error("%s/%s: Name too long\n", target, dp->d_name);
522 while ((*tp++ = *cp++))
533 * Notify the list of people the changes that were made.
534 * rhost == NULL if we are mailing a list of changes compared to at time
538 notify(char *file, char *rhost, struct namelist *to, time_t lmod)
544 if ((options & VERIFY) || to == NULL)
549 printf("@%s ", rhost);
555 if ((fd = open(file, 0)) < 0) {
556 error("%s: %s\n", file, strerror(errno));
559 if (fstat(fd, &stb) < 0) {
560 error("%s: %s\n", file, strerror(errno));
564 if (stb.st_size == 0) {
569 * Create a pipe to mailling program.
571 snprintf(buf, sizeof(buf), "%s -oi -t", _PATH_SENDMAIL);
572 pf = popen(buf, "w");
574 error("notify: \"%s\" failed\n", _PATH_SENDMAIL);
579 * Output the proper header information.
581 fprintf(pf, "From: rdist (Remote distribution program)\n");
583 if (!any('@', to->n_name) && rhost != NULL)
584 fprintf(pf, " %s@%s", to->n_name, rhost);
586 fprintf(pf, " %s", to->n_name);
589 if (!any('@', to->n_name) && rhost != NULL)
590 fprintf(pf, ", %s@%s", to->n_name, rhost);
592 fprintf(pf, ", %s", to->n_name);
597 fprintf(pf, "Subject: files updated by rdist from %s to %s\n",
600 fprintf(pf, "Subject: files updated after %s\n", ctime(&lmod));
603 while ((len = read(fd, buf, BUFSIZ)) > 0)
604 fwrite(buf, 1, len, pf);
611 * Return true if name is in the list.
614 inlist(struct namelist *list, char *file)
618 for (nl = list; nl != NULL; nl = nl->n_next)
619 if (!strcmp(file, nl->n_name))
625 * Return TRUE if file is in the exception list.
636 printf("except(%s)\n", file);
638 for (sc = subcmds; sc != NULL; sc = sc->sc_next) {
639 if (sc->sc_type != EXCEPT && sc->sc_type != PATTERN)
641 for (nl = sc->sc_args; nl != NULL; nl = nl->n_next) {
642 if (sc->sc_type == EXCEPT) {
643 if (!strcmp(file, nl->n_name))
647 val = regcomp(&rx, nl->n_name,
648 REG_EXTENDED | REG_NOSUB);
649 if (!regexec(&rx, file, 0, 0, 0)) {