freebsd-skq/usr.sbin/yp_mkdb/yp_mkdb.c

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/*
* Copyright (c) 1995, 1996
* Bill Paul <wpaul@ctr.columbia.edu>. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul 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>
__FBSDID("$FreeBSD$");
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#include <err.h>
#include <fcntl.h>
#include <limits.h>
#include <stdint.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
#include <time.h>
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#include <unistd.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp.h>
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#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "yp_extern.h"
#include "ypxfr_extern.h"
char *yp_dir = ""; /* No particular default needed. */
int _rpcpmstart = 0;
int debug = 1;
static void
usage(void)
{
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fprintf(stderr, "%s\n%s\n%s\n%s\n",
"usage: yp_mkdb -c",
" yp_mkdb -u dbname",
" yp_mkdb [-c] [-b] [-s] [-f] [-i inputfile] [-o outputfile]",
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" [-d domainname ] [-m mastername] inputfile dbname");
exit(1);
}
#define PERM_SECURE (S_IRUSR|S_IWUSR)
static DB *
open_db(char *path, int flags)
{
extern HASHINFO openinfo;
return(dbopen(path, flags, PERM_SECURE, DB_HASH, &openinfo));
}
static void
unwind(char *map)
{
DB *dbp;
DBT key, data;
dbp = open_db(map, O_RDONLY);
if (dbp == NULL)
err(1, "open_db(%s) failed", map);
key.data = NULL;
while (yp_next_record(dbp, &key, &data, 1, 1) == YP_TRUE)
printf("%.*s %.*s\n", (int)key.size, key.data, (int)data.size,
data.data);
(void)(dbp->close)(dbp);
return;
}
int
main(int argc, char *argv[])
{
int ch;
int un = 0;
int clear = 0;
int filter_plusminus = 0;
char *infile = NULL;
char *map = NULL;
char *domain = NULL;
char *infilename = NULL;
char *outfilename = NULL;
char *mastername = NULL;
int interdom = 0;
int secure = 0;
DB *dbp;
DBT key, data;
char buf[10240];
char *keybuf, *datbuf;
FILE *ifp;
char hname[MAXHOSTNAMELEN + 2];
while ((ch = getopt(argc, argv, "uhcbsfd:i:o:m:")) != -1) {
switch (ch) {
case 'f':
filter_plusminus++;
break;
case 'u':
un++;
break;
case 'c':
clear++;
break;
case 'b':
interdom++;
break;
case 's':
secure++;
break;
case 'd':
domain = optarg;
break;
case 'i':
infilename = optarg;
break;
case 'o':
outfilename = optarg;
break;
case 'm':
mastername = optarg;
break;
case 'h':
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (un) {
map = argv[0];
if (map == NULL)
usage();
unwind(map);
exit(0);
}
infile = argv[0];
map = argv[1];
if (infile == NULL || map == NULL) {
if (clear)
goto doclear;
usage();
}
if (mastername == NULL) {
if (gethostname((char *)&hname, sizeof(hname)) == -1)
err(1, "gethostname() failed");
mastername = (char *)&hname;
}
/*
* Note that while we can read from stdin, we can't
* write to stdout; the db library doesn't let you
* write to a file stream like that.
*/
if (!strcmp(infile, "-")) {
ifp = stdin;
} else {
if ((ifp = fopen(infile, "r")) == NULL)
err(1, "failed to open %s", infile);
}
if ((dbp = open_db(map, O_RDWR|O_EXLOCK|O_EXCL|O_CREAT)) == NULL)
err(1, "open_db(%s) failed", map);
if (interdom) {
key.data = "YP_INTERDOMAIN";
key.size = sizeof("YP_INTERDOMAIN") - 1;
data.data = "";
data.size = 0;
yp_put_record(dbp, &key, &data, 0);
}
if (secure) {
key.data = "YP_SECURE";
key.size = sizeof("YP_SECURE") - 1;
data.data = "";
data.size = 0;
yp_put_record(dbp, &key, &data, 0);
}
key.data = "YP_MASTER_NAME";
key.size = sizeof("YP_MASTER_NAME") - 1;
data.data = mastername;
data.size = strlen(mastername);
yp_put_record(dbp, &key, &data, 0);
key.data = "YP_LAST_MODIFIED";
key.size = sizeof("YP_LAST_MODIFIED") - 1;
snprintf(buf, sizeof(buf), "%jd", (intmax_t)time(NULL));
data.data = (char *)&buf;
data.size = strlen(buf);
yp_put_record(dbp, &key, &data, 0);
if (infilename) {
key.data = "YP_INPUT_FILE";
key.size = sizeof("YP_INPUT_FILE") - 1;
data.data = infilename;
data.size = strlen(infilename);
yp_put_record(dbp, &key, &data, 0);
}
if (outfilename) {
key.data = "YP_OUTPUT_FILE";
key.size = sizeof("YP_OUTPUT_FILE") - 1;
data.data = outfilename;
data.size = strlen(outfilename);
yp_put_record(dbp, &key, &data, 0);
}
if (domain) {
key.data = "YP_DOMAIN_NAME";
key.size = sizeof("YP_DOMAIN_NAME") - 1;
data.data = domain;
data.size = strlen(domain);
yp_put_record(dbp, &key, &data, 0);
}
while (fgets((char *)&buf, sizeof(buf), ifp)) {
char *sep = NULL;
int rval;
/* NUL terminate */
if ((sep = strchr(buf, '\n')))
*sep = '\0';
/* handle backslash line continuations */
while (buf[strlen(buf) - 1] == '\\') {
fgets((char *)&buf[strlen(buf) - 1],
sizeof(buf) - strlen(buf), ifp);
if ((sep = strchr(buf, '\n')))
*sep = '\0';
}
/* find the separation between the key and data */
if ((sep = strpbrk(buf, " \t")) == NULL) {
warnx("bad input -- no white space: %s", buf);
continue;
}
/* separate the strings */
keybuf = (char *)&buf;
datbuf = sep + 1;
*sep = '\0';
/* set datbuf to start at first non-whitespace character */
while (*datbuf == ' ' || *datbuf == '\t')
datbuf++;
/* Check for silliness. */
if (filter_plusminus) {
if (*keybuf == '+' || *keybuf == '-' ||
*datbuf == '+' || *datbuf == '-') {
warnx("bad character at "
"start of line: %s", buf);
continue;
}
}
if (strlen(keybuf) > YPMAXRECORD) {
warnx("key too long: %s", keybuf);
continue;
}
if (!strlen(keybuf)) {
warnx("no key -- check source file for blank lines");
continue;
}
if (strlen(datbuf) > YPMAXRECORD) {
warnx("data too long: %s", datbuf);
continue;
}
key.data = keybuf;
key.size = strlen(keybuf);
data.data = datbuf;
data.size = strlen(datbuf);
if ((rval = yp_put_record(dbp, &key, &data, 0)) != YP_TRUE) {
switch (rval) {
case YP_FALSE:
warnx("duplicate key '%s' - skipping", keybuf);
break;
case YP_BADDB:
default:
err(1,"failed to write new record - exiting");
break;
}
}
}
(void)(dbp->close)(dbp);
doclear:
if (clear) {
char in = 0;
char *out = NULL;
int stat;
if ((stat = callrpc("localhost", YPPROG,YPVERS, YPPROC_CLEAR,
(xdrproc_t)xdr_void, &in,
(xdrproc_t)xdr_void, out)) != RPC_SUCCESS) {
warnx("failed to send 'clear' to local ypserv: %s",
clnt_sperrno((enum clnt_stat) stat));
}
}
exit(0);
}