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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.
- *
- * netid map generator program
- *
- * Written by Bill Paul <wpaul@ctr.columbia.edu>
- * Center for Telecommunications Research
- * Columbia University, New York City
- */
-
- #include <sys/types.h>
-
- #include <rpc/rpc.h>
- #include <rpcsvc/yp_prot.h>
- #include <rpcsvc/ypclnt.h>
-
- #include <err.h>
- #include <grp.h>
- #include <netdb.h>
- #include <pwd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
-
- #include "hash.h"
-
- #ifndef lint
- static const char rcsid[] =
- "$Id: mknetid.c,v 1.10 1998/06/30 15:19:50 bde Exp $";
- #endif /* not lint */
-
- #define LINSIZ 1024
- #define OPSYS "unix"
-
- /* Default location of group file. */
- char *groupfile = _PATH_GROUP;
- /* Default location of master.passwd file. */
- char *passfile = _PATH_PASSWD;
- /* Default location of hosts file. */
- char *hostsfile = _PATH_HOSTS;
- /* Default location of netid file */
- char *netidfile = "/etc/netid";
-
- /*
- * Stored hash table of 'reverse' group member database
- * which we will construct.
- */
- struct member_entry *mtable[TABLESIZE];
-
- /*
- * Dupe table: used to keep track of entries so we don't
- * print the same thing twice.
- */
- struct member_entry *dtable[TABLESIZE];
-
- extern struct group *_getgrent __P(( void ));
- extern int _setgrent __P(( void ));
- extern void _endgrent __P(( void ));
-
- static void
- usage()
- {
- fprintf (stderr, "%s\n%s\n",
- "usage: mknetid [-q] [-g group_file] [-p passwd_file] [-h hosts_file]",
- " [-d netid_file] [-d domain]");
- exit(1);
- }
-
- extern FILE *_gr_fp;
-
- int
- main(argc, argv)
- int argc;
- char *argv[];
- {
- FILE *gfp, *pfp, *hfp, *nfp;
- char readbuf[LINSIZ];
- char writebuf[LINSIZ];
- struct group *gr;
- struct grouplist *glist;
- char *domain;
- int ch;
- gid_t i;
- char *ptr, *pidptr, *gidptr, *hptr;
- int quiet = 0;
-
- while ((ch = getopt(argc, argv, "g:p:h:n:d:q")) != -1) {
- switch(ch) {
- case 'g':
- groupfile = optarg;
- break;
- case 'p':
- passfile = optarg;
- break;
- case 'h':
- hostsfile = optarg;
- break;
- case 'n':
- netidfile = optarg;
- break;
- case 'd':
- domain = optarg;
- break;
- case 'q':
- quiet++;
- break;
- default:
- usage();
- break;
- }
- }
-
- if (domain == NULL) {
- if (yp_get_default_domain(&domain))
- errx(1, "no domain name specified and default \
- domain not set");
- }
-
- if ((gfp = fopen(groupfile, "r")) == NULL) {
- err(1, "%s", groupfile);
- }
-
- if ((pfp = fopen(passfile, "r")) == NULL) {
- err(1, "%s", passfile);
- }
-
- if ((hfp = fopen(hostsfile, "r")) == NULL) {
- err(1, "%s", hostsfile);
- }
-
- if ((nfp = fopen(netidfile, "r")) == NULL) {
- /* netid is optional -- just continue */
- nfp = NULL;
- }
-
- _gr_fp = gfp;
-
- /* Load all the group membership info into a hash table. */
-
- _setgrent();
- while((gr = _getgrent()) != NULL) {
- while(*gr->gr_mem) {
- mstore(mtable, *gr->gr_mem, gr->gr_gid, 0);
- gr->gr_mem++;
- }
- }
-
- fclose(gfp);
- _endgrent();
-
- /*
- * Now parse the passwd database, spewing out the extra
- * group information we just stored if necessary.
- */
- while(fgets(readbuf, LINSIZ, pfp)) {
- if ((ptr = strchr(readbuf, ':')) == NULL)
- warnx("bad passwd file entry: %s", readbuf);
- *ptr = '\0';
- ptr++;
- if ((ptr = strchr(ptr, ':')) == NULL)
- warnx("bad passwd file entry: %s", readbuf);
- *ptr = '\0';
- ptr++;
- pidptr = ptr;
- if ((ptr = strchr(ptr, ':')) == NULL)
- warnx("bad passwd file entry: %s", readbuf);
- *ptr = '\0';
- ptr++;
- gidptr = ptr;
- if ((ptr = strchr(ptr, ':')) == NULL)
- warnx("bad passwd file entry: %s", readbuf);
- *ptr = '\0';
- i = atol(gidptr);
-
- snprintf(writebuf, sizeof(writebuf), "%s.%s@%s", OPSYS,
- pidptr, domain);
-
- if (lookup(dtable, writebuf)) {
- if (!quiet)
- warnx("duplicate netid '%s.%s@%s' -- skipping",
- OPSYS, pidptr, domain);
- continue;
- } else {
- mstore(dtable, writebuf, 0, 1);
- }
- printf("%s.%s@%s %s:%s", OPSYS, pidptr, domain, pidptr, gidptr);
- if ((glist = lookup(mtable, (char *)&readbuf)) != NULL) {
- while(glist) {
- if (glist->groupid != i)
- printf(",%lu", (u_long)glist->groupid);
- glist = glist->next;
- }
- }
- printf ("\n");
- }
-
- fclose(pfp);
-
- /*
- * Now parse the hosts database (this part sucks).
- */
-
- while ((ptr = fgets(readbuf, LINSIZ, hfp))) {
- if (*ptr == '#')
- continue;
- if (!(hptr = strpbrk(ptr, "#\n")))
- continue;
- *hptr = '\0';
- if (!(hptr = strpbrk(ptr, " \t")))
- continue;
- *hptr++ = '\0';
- ptr = hptr;
- while (*ptr == ' ' || *ptr == '\t')
- ptr++;
- if (!(hptr = strpbrk(ptr, " \t")))
- continue;
- *hptr++ = '\0';
- snprintf(writebuf, sizeof(writebuf), "%s.%s@%s", OPSYS,
- ptr, domain);
- if (lookup(dtable, (char *)&writebuf)) {
- if (!quiet)
- warnx("duplicate netid '%s' -- skipping",
- writebuf);
- continue;
- } else {
- mstore(dtable, (char *)&writebuf, 0, 1);
- }
- printf ("%s.%s@%s 0:%s\n", OPSYS, ptr, domain, ptr);
- }
-
- fclose(hfp);
-
- /*
- * Lastly, copy out any extra information in the netid
- * file. If it's not open, just ignore it: it's optional anyway.
- */
-
- if (nfp != NULL) {
- while(fgets(readbuf, LINSIZ, nfp)) {
- if (readbuf[0] == '#')
- continue;
- if ((ptr = strpbrk((char*)&readbuf, " \t")) == NULL) {
- warnx("bad netid entry: '%s'", readbuf);
- continue;
- }
-
- writebuf[0] = *ptr;
- *ptr = '\0';
- if (lookup(dtable, (char *)&readbuf)) {
- if (!quiet)
- warnx("duplicate netid '%s' -- skipping",
- readbuf);
- continue;
- } else {
- mstore(dtable, (char *)&readbuf, 0, 1);
- }
- *ptr = writebuf[0];
- printf("%s",readbuf);
- }
- fclose(nfp);
- }
-
- exit(0);
- }
-