diff options
Diffstat (limited to 'usr.sbin/yp_mkdb')
| -rw-r--r-- | usr.sbin/yp_mkdb/Makefile | 12 | ||||
| -rw-r--r-- | usr.sbin/yp_mkdb/yp_mkdb.8 | 209 | ||||
| -rw-r--r-- | usr.sbin/yp_mkdb/yp_mkdb.c | 342 |
3 files changed, 563 insertions, 0 deletions
diff --git a/usr.sbin/yp_mkdb/Makefile b/usr.sbin/yp_mkdb/Makefile new file mode 100644 index 000000000000..973da6ee0559 --- /dev/null +++ b/usr.sbin/yp_mkdb/Makefile @@ -0,0 +1,12 @@ +# $FreeBSD$ + +.PATH: ${.CURDIR}/../../libexec/ypxfr ${.CURDIR}/../ypserv + +PROG= yp_mkdb +MAN= yp_mkdb.8 +SRCS= yp_mkdb.c yp_dblookup.c yp_dbwrite.c + +CFLAGS+= -Dyp_error=warnx +CFLAGS+= -I${.CURDIR}/../../libexec/ypxfr -I${.CURDIR}/../../usr.sbin/ypserv + +.include <bsd.prog.mk> diff --git a/usr.sbin/yp_mkdb/yp_mkdb.8 b/usr.sbin/yp_mkdb/yp_mkdb.8 new file mode 100644 index 000000000000..125123519c05 --- /dev/null +++ b/usr.sbin/yp_mkdb/yp_mkdb.8 @@ -0,0 +1,209 @@ +.\" 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 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 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. +.\" +.\" $FreeBSD$ +.\" +.Dd March 12, 1996 +.Dt YP_MKDB 8 +.Os +.Sh NAME +.Nm yp_mkdb +.Nd "generate the NIS databases" +.Sh SYNOPSIS +.Nm +.Fl c +.Nm +.Fl u Ar dbname +.Nm +.Op Fl c +.Op Fl b +.Op Fl s +.Op Fl f +.Op Fl i Ar inputfile +.Op Fl o Ar outputfile +.Op Fl d Ar domainname +.Op Fl m Ar mastername +.Ar inputfile +.Ar dbname +.Sh DESCRIPTION +The +.Nm +utility creates +.Xr db 3 +style databases for use with +.Fx Ns 's +NIS server. +The +.Nm +utility reads data from +.Ar inputfile , +and writes it to +.Ar dbname +in +.Xr db 3 +format (using the hash table method). +The input should be in 'key data' format, which is to say +two fields of +.Tn ASCII +data separated by white space. +The first field +is assumed to be the key, and everything else is assumed to be +the data. +These databases are typically stored in +.Pa /var/yp/[domainname] +where +.Ar domainname +is the name of the NIS domain being served. +The +.Nm +utility is usually invoked by +.Pa /var/yp/Makefile . +The +.Nm +utility can also be used to dump an NIS database file so that its +contents can be examined. +For security reasons, all databases that +.Nm +creates are readable and writable by owner only (and usually the +owner is root). +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl c +Cause +.Nm +to send a YPPROC_CLEAR request to +.Xr ypserv 8 +on the local host. +This signal tells the server to close any open +database descriptors and flush out its database cache. +If used alone, +this flag signals the server and does nothing else. +If used as part +of a database creation command, +.Nm +will send the signal only after the new database has been successfully +created. +.It Fl b +Cause +.Nm +to add a special entry to the database with a key of +.Em YP_INTERDOMAIN +and an empty data field. +If this key is present in a map, it alters the +behavior of the 'match' procedure in +.Xr ypserv 8 +slightly. +If a match query fails (because the server could not find +a record that matched the supplied key), and the +.Em YP_INTERDOMAIN +key exists within the queried map, +.Xr ypserv 8 +will try to match the entry again using a DNS lookup. +Note that this +special behavior only applies to the +.Em hosts +maps. +Using the +.Fl b +flag for other maps has no effect. +.It Fl s +This flag is used to add a special entry to the database with a key of +.Em YP_SECURE +and an empty data field. +If this key is present in a map, +.Xr ypserv 8 +will deny access to the map to any client that is not using a +reserved port for its query. +This is used mainly for the +.Em master.passwd +maps, which should be restricted to privileged access only. +.It Fl f +This flag is used to turn on filtering of lines in the source file +input that start with ``+'' or ``-'' characters. +These characters +have special meaning for the +.Pa group , +.Pa passwd +and +.Pa master.passwd +maps and hence should not be allowed to appear in them as the first +character of a key or datum. +If the +.Fl f +flag is used, +.Nm +will reject any source line that starts with a ``+'' or ``-'' +character and issue a warning message displaying the line that +was dropped. +.It Fl u Ar dbname +Dump (or 'unwind') an NIS database. +This option can be used to +inspect the contents of an existing NIS database. +.It Fl i Ar inputfile +When generating an NIS map, encode +.Ar inputfile +as a special entry in the database with a key of +.Em YP_INPUT_FILE . +.It Fl o Ar outputfile +When generating an NIS map, encode +.Ar outputfile +as a special entry in the database with a key of +.Em YP_OUTPUT_FILE . +.It Fl d Ar domainname +When generating an NIS map, encode +.Ar domainname +as a special entry in the database with a key of +.Em YP_DOMAIN_NAME . +.It Fl m Ar mastername +When generating an NIS map, encode +.Ar mastername +as a special entry in the database with a key of +.Em YP_MASTER_NAME . +This entry in the database is frequently used by various NIS utilities +to determine the name of an NIS master server for a domain. +By default, +.Nm +assumes that the local host is the NIS master; the +.Fl m +option is used to override this default. +.El +.Sh FILES +.Bl -tag -width /var/yp/Makefile -compact +.It Pa /var/yp/Makefile +the Makefile that calls +.Nm +to build the NIS databases +.El +.Sh SEE ALSO +.Xr db 3 , +.Xr ypserv 8 +.Sh AUTHORS +.An Bill Paul Aq wpaul@ctr.columbia.edu diff --git a/usr.sbin/yp_mkdb/yp_mkdb.c b/usr.sbin/yp_mkdb/yp_mkdb.c new file mode 100644 index 000000000000..6c3014bdfc9c --- /dev/null +++ b/usr.sbin/yp_mkdb/yp_mkdb.c @@ -0,0 +1,342 @@ +/* + * 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("$FreeBSD$"); + +#include <err.h> +#include <fcntl.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <unistd.h> +#include <rpc/rpc.h> +#include <rpcsvc/yp.h> +#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) +{ + 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]", + " [-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", key.size,key.data,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), "%lu", 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); +} |