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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)docmd.c 8.1 (Berkeley) 6/9/93
34 * $FreeBSD: src/usr.bin/rdist/docmd.c,v 1.12 1999/08/28 01:05:06 peter Exp $
35 * $DragonFly: src/usr.bin/rdist/docmd.c,v 1.5 2008/10/16 01:52:32 swildner Exp $
38 #include <sys/types.h>
46 FILE *lfp; /* log file for recording files updated */
47 struct subcmd *subcmds; /* list of sub-commands for current cmd */
50 static int makeconn(char *);
51 static int okname(char *);
52 static void closeconn(void);
53 static void cmptime(char *);
54 static void doarrow(char **,
55 struct namelist *, char *, struct subcmd *);
56 static void dodcolon(char **,
57 struct namelist *, char *, struct subcmd *);
58 static void notify(char *, char *, struct namelist *, time_t);
59 static void rcmptime(struct stat *);
60 static int remotecmd(char *, char *, char *, char *);
63 * Do the commands in cmds (initialized by yyparse).
66 docmds(char **dhosts, int argc, char **argv)
71 extern struct cmd *cmds;
73 signal(SIGHUP, cleanup);
74 signal(SIGINT, cleanup);
75 signal(SIGQUIT, cleanup);
76 signal(SIGTERM, cleanup);
78 for (c = cmds; c != NULL; c = c->c_next) {
79 if (dhosts != NULL && *dhosts != NULL) {
80 for (cpp = dhosts; *cpp; cpp++)
81 if (strcmp(c->c_name, *cpp) == 0)
87 for (cpp = argv; *cpp; cpp++) {
88 if (c->c_label != NULL &&
89 strcmp(c->c_label, *cpp) == 0) {
93 for (f = c->c_files; f != NULL; f = f->n_next)
94 if (strcmp(f->n_name, *cpp) == 0)
103 doarrow(cpp, c->c_files, c->c_name, c->c_cmds);
106 dodcolon(cpp, c->c_files, c->c_name, c->c_cmds);
109 fatal("illegal command type %d\n", c->c_type);
116 * Process commands for sending files to other machines.
119 doarrow(char **filev, struct namelist *files, char *rhost, struct subcmd *cmds)
124 int n, ddir, opts = options;
127 printf("doarrow(%p, %s, %p)\n", files, rhost, cmds);
130 error("no files to be updated\n");
135 ddir = files->n_next != NULL; /* destination is a directory */
137 printf("updating host %s\n", rhost);
141 signal(SIGPIPE, lostconn);
142 if (!makeconn(rhost))
144 if ((lfp = fopen(tempfile, "w")) == NULL) {
145 fatal("cannot open %s\n", tempfile);
149 for (f = files; f != NULL; f = f->n_next) {
151 for (cpp = filev; *cpp; cpp++)
152 if (strcmp(f->n_name, *cpp) == 0)
160 for (sc = cmds; sc != NULL; sc = sc->sc_next) {
161 if (sc->sc_type != INSTALL)
164 install(f->n_name, sc->sc_name,
165 sc->sc_name == NULL ? 0 : ddir, sc->sc_options);
166 opts = sc->sc_options;
169 install(f->n_name, NULL, 0, options);
173 signal(SIGPIPE, cleanup);
178 for (sc = cmds; sc != NULL; sc = sc->sc_next)
179 if (sc->sc_type == NOTIFY)
180 notify(tempfile, rhost, sc->sc_args, 0);
182 struct linkbuf *nextihead;
185 for (; ihead != NULL; ihead = nextihead) {
186 nextihead = ihead->nextp;
187 if ((opts & IGNLNKS) || ihead->count == 0)
189 dolog(lfp, "%s: Warning: missing links\n",
196 static int remotecmd(char *rhost, char *luser, char *ruser, char *cmd)
199 static int port = -1;
202 printf("local user = %s remote user = %s\n", luser, ruser);
203 printf("Remote command = '%s'\n", cmd);
208 signal(SIGALRM, cleanup);
211 if (geteuid() == 0 && strcmp(path_rsh, _PATH_RSH) == 0) {
213 printf("I am root, therefore direct rcmd\n");
215 signal(SIGPIPE, cleanup);
220 if ((sp = getservbyname("shell", "tcp")) == NULL)
221 fatal("shell/tcp: unknown service");
225 desc = rcmd(&rhost, port, luser, ruser, cmd, 0);
228 printf("Remote shell command = '%s'\n", path_rsh);
229 signal(SIGPIPE, SIG_IGN);
230 desc = rshrcmd(&rhost, -1, luser, ruser, cmd, 0);
232 signal(SIGPIPE, cleanup);
242 * Create a connection to the rdist server on the machine rhost.
245 makeconn(char *rhost)
248 static char *cur_host = NULL;
249 static int port = -1;
253 #if defined(DIRECT_RCMD)
258 printf("makeconn(%s)\n", rhost);
260 if (cur_host != NULL && rem >= 0) {
261 if (strcmp(cur_host, rhost) == 0)
266 cp = index(rhost, '@');
271 strncpy(tuser, rhost, sizeof(tuser)-1);
277 else if (!okname(ruser))
282 printf("updating host %s\n", rhost);
283 snprintf(buf, sizeof(buf), "%s -Server%s", _PATH_RDIST, qflag ? " -q" : "");
287 if ((sp = getservbyname("shell", "tcp")) == NULL)
288 fatal("shell/tcp: unknown service");
293 printf("port = %d, luser = %s, ruser = %s\n", ntohs(port), user, ruser);
294 printf("buf = %s\n", buf);
298 #if defined(DIRECT_RCMD)
300 rem = rcmd(&rhost, port, user, ruser, buf, 0);
303 rem = remotecmd(rhost, user, ruser, buf);
308 if (read(rem, cp, 1) != 1)
312 if (read(rem, cp, 1) != 1)
314 } while (*cp++ != '\n' && cp < &buf[BUFSIZ]);
318 while (*cp >= '0' && *cp <= '9')
319 n = (n * 10) + (*cp++ - '0');
320 if (*cp == '\0' && n == VERSION)
322 error("connection failed: version numbers don't match (local %d, remote %d)\n", VERSION, n);
324 error("connection failed: version numbers don't match\n");
325 error("got unexpected input:");
328 } while (*cp != '\n' && read(rem, cp, 1) == 1);
335 * Signal end of previous connection.
341 printf("closeconn()\n");
344 write(rem, "\2\n", 2);
355 dolog(lfp, "rdist: lost connection\n");
371 if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
377 error("invalid user name %s\n", name);
383 extern char target[], *tp;
386 * Process commands for comparing files to time stamp files.
389 dodcolon(char **filev, struct namelist *files, char *stamp, struct subcmd *cmds)
394 struct timeval tv[2];
399 printf("dodcolon()\n");
402 error("no files to be updated\n");
405 if (stat(stamp, &stb) < 0) {
406 error("%s: %s\n", stamp, strerror(errno));
410 printf("%s: %ld\n", stamp, stb.st_mtime);
413 lastmod = stb.st_mtime;
414 if (nflag || (options & VERIFY))
417 if ((tfp = fopen(tempfile, "w")) == NULL) {
418 error("%s: %s\n", stamp, strerror(errno));
421 gettimeofday(&tv[0], &tz);
426 for (f = files; f != NULL; f = f->n_next) {
428 for (cpp = filev; *cpp; cpp++)
429 if (strcmp(f->n_name, *cpp) == 0)
440 for (sc = cmds; sc != NULL; sc = sc->sc_next)
441 if (sc->sc_type == NOTIFY)
442 notify(tempfile, NULL, sc->sc_args, lastmod);
443 if (!nflag && !(options & VERIFY))
448 * Compare the mtime of file to the list of time stamps.
456 printf("cmptime(%s)\n", name);
462 printf("comparing dates: %s\n", name);
467 * first time cmptime() is called?
470 if (exptilde(target, name, sizeof(target)) == NULL)
476 if (access(name, 4) < 0 || stat(name, &stb) < 0) {
477 error("%s: %s\n", name, strerror(errno));
481 switch (stb.st_mode & S_IFMT) {
490 error("%s: not a plain file\n", name);
494 if (stb.st_mtime > lastmod)
495 dolog(tfp, "new: %s\n", name);
499 rcmptime(struct stat *st)
508 printf("rcmptime(%p)\n", st);
510 if ((d = opendir(target)) == NULL) {
511 error("%s: %s\n", target, strerror(errno));
516 while ((dp = readdir(d))) {
517 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
519 if (len + 1 + strlen(dp->d_name) >= BUFSIZ - 1) {
520 error("%s/%s: Name too long\n", target, dp->d_name);
526 while ((*tp++ = *cp++))
537 * Notify the list of people the changes that were made.
538 * rhost == NULL if we are mailing a list of changes compared to at time
542 notify(char *file, char *rhost, struct namelist *to, time_t lmod)
548 if ((options & VERIFY) || to == NULL)
553 printf("@%s ", rhost);
559 if ((fd = open(file, 0)) < 0) {
560 error("%s: %s\n", file, strerror(errno));
563 if (fstat(fd, &stb) < 0) {
564 error("%s: %s\n", file, strerror(errno));
568 if (stb.st_size == 0) {
573 * Create a pipe to mailling program.
575 snprintf(buf, sizeof(buf), "%s -oi -t", _PATH_SENDMAIL);
576 pf = popen(buf, "w");
578 error("notify: \"%s\" failed\n", _PATH_SENDMAIL);
583 * Output the proper header information.
585 fprintf(pf, "From: rdist (Remote distribution program)\n");
587 if (!any('@', to->n_name) && rhost != NULL)
588 fprintf(pf, " %s@%s", to->n_name, rhost);
590 fprintf(pf, " %s", to->n_name);
593 if (!any('@', to->n_name) && rhost != NULL)
594 fprintf(pf, ", %s@%s", to->n_name, rhost);
596 fprintf(pf, ", %s", to->n_name);
601 fprintf(pf, "Subject: files updated by rdist from %s to %s\n",
604 fprintf(pf, "Subject: files updated after %s\n", ctime(&lmod));
607 while ((len = read(fd, buf, BUFSIZ)) > 0)
608 fwrite(buf, 1, len, pf);
615 * Return true if name is in the list.
618 inlist(struct namelist *list, char *file)
622 for (nl = list; nl != NULL; nl = nl->n_next)
623 if (!strcmp(file, nl->n_name))
629 * Return TRUE if file is in the exception list.
640 printf("except(%s)\n", file);
642 for (sc = subcmds; sc != NULL; sc = sc->sc_next) {
643 if (sc->sc_type != EXCEPT && sc->sc_type != PATTERN)
645 for (nl = sc->sc_args; nl != NULL; nl = nl->n_next) {
646 if (sc->sc_type == EXCEPT) {
647 if (!strcmp(file, nl->n_name))
651 val = regcomp(&rx, nl->n_name,
652 REG_EXTENDED | REG_NOSUB);
653 if (!regexec(&rx, file, 0, 0, 0)) {