569 lines
11 KiB
C
569 lines
11 KiB
C
/* $NetBSD: mknetid.c,v 1.5 1997/10/13 03:51:58 lukem Exp $ */
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/*
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* Copyright (c) 1996 Mats O Jansson <moj@stacken.kth.se>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mats O Jansson
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: mknetid.c,v 1.5 1997/10/13 03:51:58 lukem Exp $");
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#endif
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/*
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* Originally written by Mats O Jansson <moj@stacken.kth.se>
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* Simplified a bit by Jason R. Thorpe <thorpej@NetBSD.ORG>
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <ctype.h>
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#include <err.h>
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#include <grp.h>
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#include <limits.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <rpcsvc/ypclnt.h>
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#include "protos.h"
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struct user {
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char *usr_name; /* user name */
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int usr_uid; /* user uid */
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int usr_gid; /* user gid */
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int gid_count; /* number of gids */
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int gid[NGROUPS]; /* additional gids */
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TAILQ_ENTRY(user) read; /* links in read order */
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TAILQ_ENTRY(user) hash; /* links in hash order */
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};
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#ifdef HOSTS
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char *HostFile = HOSTS;
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#else
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char *HostFile = _PATH_HOSTS;
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#endif
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#ifdef PASSWD
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char *PasswdFile = PASSWD;
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#else
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char *PasswdFile = _PATH_PASSWD;
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#endif
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#ifdef GROUP
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char *GroupFile = GROUP;
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#else
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char *GroupFile = _PATH_GROUP;
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#endif
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#ifdef NETID
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char *NetidFile = NETID;
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#else
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char *NetidFile = "/etc/netid";
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#endif
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#define HASHMAX 55
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int main __P((int, char *[]));
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void print_passwd_group __P((int, char *));
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void print_hosts __P((FILE *, char *, char *));
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void print_netid __P((FILE *, char *));
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void add_user __P((char *, char *, char *));
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void add_group __P((char *, char *));
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void read_passwd __P((FILE *, char *));
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void read_group __P((FILE *, char *));
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void usage __P((void));
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int hashidx __P((char));
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int isgsep __P((char));
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TAILQ_HEAD(user_list, user);
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struct user_list root;
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struct user_list hroot[HASHMAX];
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extern char *__progname; /* from crt0.o */
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int qflag, ch;
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char *domain;
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FILE *pfile, *gfile, *hfile, *mfile;
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TAILQ_INIT(&root);
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for (ch = 0; ch < HASHMAX; ch++)
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TAILQ_INIT((&hroot[ch]));
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qflag = 0;
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domain = NULL;
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while ((ch = getopt(argc, argv, "d:g:h:m:p:q")) != -1) {
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switch (ch) {
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case 'd':
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domain = optarg;
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break;
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case 'g':
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GroupFile = optarg;
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break;
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case 'h':
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HostFile = optarg;
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break;
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case 'm':
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NetidFile = optarg;
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break;
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case 'p':
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PasswdFile = optarg;
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break;
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case 'q':
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qflag++;
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break;
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default:
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usage();
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}
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}
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argc -= optind; argv += optind;
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if (argc != 0)
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usage();
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if (domain == NULL)
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if (yp_get_default_domain(&domain))
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errx(1, "Can't get YP domain name");
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if ((pfile = fopen(PasswdFile, "r")) == NULL)
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err(1, "%s", PasswdFile);
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if ((gfile = fopen(GroupFile, "r")) == NULL)
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err(1, "%s", GroupFile);
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if ((hfile = fopen(HostFile, "r")) == NULL)
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err(1, "%s", HostFile);
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mfile = fopen(NetidFile, "r");
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read_passwd(pfile, PasswdFile);
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read_group(gfile, GroupFile);
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print_passwd_group(qflag, domain);
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print_hosts(hfile, HostFile, domain);
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if (mfile != NULL)
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print_netid(mfile, NetidFile);
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exit (0);
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}
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int
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hashidx(key)
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char key;
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{
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if (key < 'A')
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return(0);
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if (key <= 'Z')
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return(1 + key - 'A');
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if (key < 'a')
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return(27);
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if (key <= 'z')
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return(28 + key - 'a');
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return(54);
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}
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void
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add_user(username, uid, gid)
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char *username, *uid, *gid;
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{
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struct user *u;
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int idx;
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idx = hashidx(username[0]);
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u = (struct user *)malloc(sizeof(struct user));
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if (u == NULL)
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err(1, "can't allocate user");
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memset(u, 0, sizeof(struct user));
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u->usr_name = (char *)malloc(strlen(username) + 1);
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if (u->usr_name == NULL)
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err(1, "can't allocate user name");
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strcpy(u->usr_name, username);
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u->usr_uid = atoi(uid);
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u->usr_gid = atoi(gid);
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u->gid_count = -1;
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TAILQ_INSERT_TAIL(&root, u, read);
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TAILQ_INSERT_TAIL((&hroot[idx]), u, hash);
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}
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void
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add_group(username, gid)
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char *username, *gid;
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{
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struct user *u;
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int g, idx;
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g = atoi(gid);
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idx = hashidx(username[0]);
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for (u = hroot[idx].tqh_first;
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u != NULL; u = u->hash.tqe_next) {
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if (strcmp(username, u->usr_name) == 0) {
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if (g != u->usr_gid) {
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u->gid_count++;
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if (u->gid_count < NGROUPS)
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u->gid[u->gid_count] = g;
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}
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return;
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}
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}
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}
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void
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read_passwd(pfile, fname)
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FILE *pfile;
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char *fname;
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{
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char line[_POSIX2_LINE_MAX];
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int line_no = 0, len, colon;
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char *p, *k, *u, *g;
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while (read_line(pfile, line, sizeof(line))) {
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line_no++;
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len = strlen(line);
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if (len <= 1 || line[0] == '#')
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continue;
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/*
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* Check if we have the whole line
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*/
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if (line[len - 1] != '\n') {
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warnx("%s line %d: line to long, skipping",
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fname, line_no);
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continue;
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} else
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line[len - 1] = '\0';
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p = line;
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for (k = p, colon = 0; *k != '\0'; k++)
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if (*k == ':')
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colon++;
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if (colon > 0) {
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/* terminate key */
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for (k = p; *p != ':'; p++);
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*p++ = '\0';
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/* If it's a YP entry, skip it. */
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if (strlen(k) == 1)
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if (*k == '+' || *k == '-')
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continue;
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}
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if (colon < 4) {
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warnx("%s line %d: syntax error",
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fname, line_no);
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continue;
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}
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/* terminate password */
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for (; *p != ':'; p++);
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*p++ = '\0';
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/* terminate uid */
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for (u = p; *p != ':'; p++);
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*p++ = '\0';
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/* terminate gid */
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for (g = p; *p != ':'; p++);
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*p++ = '\0';
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add_user(k, u, g);
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}
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}
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int
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isgsep(ch)
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char ch;
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{
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switch (ch) {
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case ',':
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case ' ':
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case '\t':
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case '\0':
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return (1);
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}
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return (0);
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}
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void
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read_group(gfile, fname)
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FILE *gfile;
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char *fname;
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{
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char line[_POSIX2_LINE_MAX];
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int line_no = 0, len, colon;
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char *p, *k, *u, *g;
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while (read_line(gfile, line, sizeof(line))) {
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line_no++;
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len = strlen(line);
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if (len > 1) {
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if (line[0] == '#') {
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continue;
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}
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} else
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continue;
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/*
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* Check if we have the whole line
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*/
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if (line[len - 1] != '\n') {
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warnx("%s line %d: line to long, skipping",
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fname, line_no);
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continue;
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} else
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line[len - 1] = '\0';
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p = line;
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for (k = p, colon = 0; *k != '\0'; k++)
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if (*k == ':')
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colon++;
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if (colon > 0) {
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/* terminate key */
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for (k = p; *p != ':'; p++);
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*p++ = '\0';
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/* If it's a YP entry, skip it. */
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if (strlen(k) == 1)
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if (*k == '+' || *k == '-')
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continue;
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}
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if (colon < 3) {
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warnx("%s line %d: syntax error",
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fname, line_no);
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continue;
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}
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/* terminate password */
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for (; *p != ':'; p++);
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*p++ = '\0';
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/* terminate gid */
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for (g = p; *p != ':'; p++);
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*p++ = '\0';
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/* get the group list */
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for (u = p; *u != '\0'; u = p) {
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/* find separator */
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for (; isgsep(*p) == 0; p++);
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if (*p != '\0') {
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*p = '\0';
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if (u != p)
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add_group(u, g);
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p++;
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} else if (u != p)
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add_group(u, g);
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}
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}
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}
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void
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print_passwd_group(qflag, domain)
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int qflag;
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char *domain;
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{
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struct user *u, *p;
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int i;
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for (u = root.tqh_first; u != NULL; u = u->read.tqe_next) {
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for (p = root.tqh_first; p->usr_uid != u->usr_uid;
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p = p->read.tqe_next)
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/* empty */ ;
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if (p != u) {
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if (!qflag) {
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warnx("unix.%d@%s %s", u->usr_uid, domain,
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"multiply defined, ignoring duplicate");
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}
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} else {
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printf("unix.%d@%s %d:%d", u->usr_uid, domain,
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u->usr_uid, u->usr_gid);
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if (u->gid_count >= 0)
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for (i = 0; i <= u->gid_count; i++)
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printf(",%d", u->gid[i]);
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printf("\n");
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}
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}
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}
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void
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print_hosts(pfile, fname, domain)
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FILE *pfile;
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char *fname, *domain;
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{
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char line[_POSIX2_LINE_MAX];
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int line_no = 0, len;
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char *p, *k, *u;
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while (read_line(pfile, line, sizeof(line))) {
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line_no++;
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len = strlen(line);
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if (len > 1) {
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if (line[0] == '#') {
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continue;
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}
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} else
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continue;
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/*
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* Check if we have the whole line
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*/
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if (line[len - 1] != '\n') {
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warnx("%s line %d: line to long, skipping",
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fname, line_no);
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continue;
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} else
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line[len - 1] = '\0';
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p = line;
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/* Find the key, replace trailing whitespace will <NUL> */
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for (k = p; isspace(*p) == 0; p++);
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while (isspace(*p))
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*p++ = '\0';
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/* Get first hostname. */
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for (u = p; ; ) {
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/* Check for EOL */
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if (*p == '\0')
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break;
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if (isspace(*p) == 0)
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p++;
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else {
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/* Got it. */
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*p = '\0';
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break;
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}
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}
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printf("unix.%s@%s 0:%s\n", u, domain, u);
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}
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}
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void
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print_netid(mfile, fname)
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FILE *mfile;
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char *fname;
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{
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char line[_POSIX2_LINE_MAX];
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int line_no = 0, len;
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char *p, *k, *u;
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while (read_line(mfile, line, sizeof(line))) {
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line_no++;
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len = strlen(line);
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if (len > 1)
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if (line[0] == '#')
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continue;
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else
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continue;
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/*
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* Check if we have the while line
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*/
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if (line[len - 1] != '\n') {
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warnx("%s line %d: line to long, skipping",
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fname, line_no);
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continue;
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} else
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line[len - 1] = '\0';
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p = line;
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/* Find the key, replace trailing whitespace will <NUL> */
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for (k = p; isspace(*p) == 0; p++);
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while (isspace(*p))
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*p++ = '\0';
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/* Get netid entry. */
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for (u = p; ; ) {
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/* Check for EOL */
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if (*p == '\0')
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break;
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if (isspace(*p) == 0)
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p++;
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else {
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/* Got it. */
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*p = '\0';
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break;
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}
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}
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printf("%s %s\n", k, u);
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}
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}
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void
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usage()
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{
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fprintf(stderr, "usage: %s %s\n", __progname,
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"[-d domain] [-q] [-p passwdfile] [-g groupfile]");
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fprintf(stderr, " %s %s", __progname,
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|
"[-g groupfile] [-h hostfile] [-m netidfile]");
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exit(1);
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}
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