NetBSD-5.0.2/usr.bin/rdist/main.c
/* $NetBSD: main.c,v 1.19 2008/07/21 14:19:25 lukem Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1983, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/9/93";
#else
__RCSID("$NetBSD: main.c,v 1.19 2008/07/21 14:19:25 lukem Exp $");
#endif
#endif /* not lint */
#include <sys/types.h>
#include <err.h>
#include <errno.h>
#include <pwd.h>
#include "defs.h"
#define NHOSTS 100
/*
* Remote distribution program.
*/
char *distfile = NULL;
#define _RDIST_TMP "/rdistXXXXXX"
char tempfile[sizeof _PATH_TMP + sizeof _RDIST_TMP + 1];
char *tempname;
int debug; /* debugging flag */
int nflag; /* NOP flag, just print commands without executing */
int qflag; /* Quiet. Don't print messages */
int options; /* global options */
int iamremote; /* act as remote server for transfering files */
FILE *fin = NULL; /* input file pointer */
int rem = -1; /* file descriptor to remote source/sink process */
char host[MAXHOSTNAMELEN + 1]; /* host name */
int nerrs; /* number of errors while sending/receiving */
char user[34]; /* user's name */
char homedir[PATH_MAX]; /* user's home directory */
uid_t userid; /* user's user ID */
gid_t groupid; /* user's group ID */
struct passwd *pw; /* pointer to static area used by getpwent */
struct group *gr; /* pointer to static area used by getgrent */
int main(int, char **);
static void usage(void);
static void docmdargs(int, char *[]);
int
main(int argc, char **argv)
{
char *arg;
int cmdargs = 0;
char *dhosts[NHOSTS], **hp = dhosts;
int fd;
pw = getpwuid(userid = getuid());
if (pw == NULL) {
fprintf(stderr, "%s: Who are you?\n", argv[0]);
exit(1);
}
strlcpy(user, pw->pw_name, sizeof(user));
strlcpy(homedir, pw->pw_dir, sizeof(homedir));
groupid = pw->pw_gid;
gethostname(host, sizeof(host));
host[sizeof(host) - 1] = '\0';
strlcpy(tempfile, _PATH_TMP, sizeof(tempfile));
strlcat(tempfile, _RDIST_TMP, sizeof(tempfile));
if ((tempname = strrchr(tempfile, '/')) != 0)
tempname++;
else
tempname = tempfile;
while (--argc > 0) {
if ((arg = *++argv)[0] != '-')
break;
if (!strcmp(arg, "-Server"))
iamremote++;
else while (*++arg)
switch (*arg) {
case 'f':
if (--argc <= 0)
usage();
distfile = *++argv;
if (distfile[0] == '-' && distfile[1] == '\0')
fin = stdin;
break;
case 'm':
if (--argc <= 0)
usage();
if (hp >= &dhosts[NHOSTS-2]) {
fprintf(stderr, "rdist: too many destination hosts\n");
exit(1);
}
*hp++ = *++argv;
break;
case 'd':
if (--argc <= 0)
usage();
define(*++argv);
break;
case 'D':
debug++;
break;
case 'c':
cmdargs++;
break;
case 'n':
if (options & VERIFY) {
printf("rdist: -n overrides -v\n");
options &= ~VERIFY;
}
nflag++;
break;
case 'q':
qflag++;
break;
case 'b':
options |= COMPARE;
break;
case 'R':
options |= REMOVE;
break;
case 'v':
if (nflag) {
printf("rdist: -n overrides -v\n");
break;
}
options |= VERIFY;
break;
case 'w':
options |= WHOLE;
break;
case 'y':
options |= YOUNGER;
break;
case 'h':
options |= FOLLOW;
break;
case 'i':
options |= IGNLNKS;
break;
default:
usage();
}
}
*hp = NULL;
seteuid(userid);
fd = mkstemp(tempfile);
if (fd == -1)
err(1, "could not make a temporary file");
close (fd);
if (iamremote) {
server();
unlink(tempfile);
exit(nerrs != 0);
}
if (cmdargs)
docmdargs(argc, argv);
else {
if (fin == NULL) {
if (distfile == NULL) {
if ((fin = fopen("distfile","r")) == NULL)
fin = fopen("Distfile", "r");
} else
fin = fopen(distfile, "r");
if (fin == NULL) {
perror(distfile ? distfile : "distfile");
unlink(tempfile);
exit(1);
}
}
yyparse();
if (nerrs == 0)
docmds(dhosts, argc, argv);
}
unlink(tempfile);
exit(nerrs != 0);
}
static void
usage(void)
{
(void)fprintf(stderr,
"usage: %s [-bDhinqRvwy] [-d var=value] [-f distfile] [-m host] "
"[name ...]\n"
"or : %s [-bDhinqRvwy] -c name ... [login@]host[:dest]\n",
getprogname(), getprogname());
exit(1);
}
/*
* rcp like interface for distributing files.
*/
static void
docmdargs(int nargs, char **args)
{
struct namelist *nl, *prev;
char *cp;
struct namelist *files, *hosts;
struct subcmd *cmds;
char *dest;
static struct namelist tnl = { NULL, NULL };
int i;
if (nargs < 2)
usage();
files = NULL;
prev = NULL;
for (i = 0; i < nargs - 1; i++) {
nl = makenl(args[i]);
if (prev == NULL)
files = prev = nl;
else {
prev->n_next = nl;
prev = nl;
}
}
cp = args[i];
if ((dest = strchr(cp, ':')) != NULL)
*dest++ = '\0';
tnl.n_name = cp;
hosts = expand(&tnl, E_ALL);
if (nerrs)
return;
if (dest == NULL || *dest == '\0')
cmds = NULL;
else {
cmds = makesubcmd(INSTALL);
cmds->sc_options = options;
cmds->sc_name = dest;
}
if (debug) {
printf("docmdargs()\nfiles = ");
prnames(files);
printf("hosts = ");
prnames(hosts);
}
insert(NULL, files, hosts, cmds);
docmds(NULL, 0, NULL);
freenl(files);
freenl(hosts);
freesubcmd(cmds);
}
/*
* Print a list of NAME blocks (mostly for debugging).
*/
void
prnames(struct namelist *nl)
{
printf("( ");
while (nl != NULL) {
printf("%s ", nl->n_name);
nl = nl->n_next;
}
printf(")\n");
}