common/uwin/rcmd.c

da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "FEATURE/uwin"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if !_UWIN || _lib_rcmd
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinvoid _STUB_rcmd(){}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Copyright (c) 1983
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *  The Regents of the University of California.  All rights reserved.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Redistribution and use in source and binary forms, with or without
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * modification, are permitted provided that the following conditions
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * are met:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 1. Redistributions of source code must retain the above copyright
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *    notice, this list of conditions and the following disclaimer.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 2. Redistributions in binary form must reproduce the above copyright
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *    notice, this list of conditions and the following disclaimer in the
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *    documentation and/or other materials provided with the distribution.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 3. Neither the name of the University nor the names of its contributors
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *    may be used to endorse or promote products derived from this software
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *    without specific prior written permission.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * SUCH DAMAGE.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if defined(LIBC_SCCS) && !defined(lint)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic char sccsid[] = "@(#)rcmd.c  5.17 (Berkeley) 6/27/88";
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif /* LIBC_SCCS and not lint */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "rlib.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <pwd.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <sys/file.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <sys/signal.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if 1
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#define _PATH_HEQUIV    "/etc/hosts.equiv"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <sys/stat.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "nl_types.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef YP
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <rpcsvc/ypclnt.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern void setnetgrent(const char *);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern void endnetgrent(void);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern int getnetgrent(char **, char **, char **);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic char *nisdomain = NULL;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic int _checknetgrouphost(const char *, const char *, int);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic int _checknetgroupuser(const char *, const char *);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if defined(__EXPORT__)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#define extern      __EXPORT__
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern int rresvport(int *alport)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    struct sockaddr_in sin;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sin.sin_family = AF_INET;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sin.sin_addr.s_addr = INADDR_ANY;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    s = socket(AF_INET, SOCK_STREAM, 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (s < 0)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    for (;;) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        sin.sin_port = htons((u_short)*alport);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (bind(s, (struct sockaddr *)&sin, sizeof (sin)) >= 0)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return (s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (errno != EADDRINUSE) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) close(s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (*alport)--;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (*alport == IPPORT_RESERVED/2) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) close(s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            errno = EAGAIN;     /* close */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern int rcmd(char **ahost, unsigned short rport, const char *locuser, const char *remuser, const char *cmd, int *fd2p)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int s, timo = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef F_SETOWN
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    pid_t pid;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigset_t set, oset;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    long oldmask;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    struct sockaddr_in sin, from;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char c;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int lport = IPPORT_RESERVED - 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    struct hostent *hp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    libc_nls_init();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef F_SETOWN
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    pid = getpid();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    hp = gethostbyname(*ahost);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (hp == 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        fprintf(stderr, "%s: %s\n", *ahost,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            catgets(_libc_cat, HerrorListSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            2, "unknown host"));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        fprintf(stderr, "%s: unknown host\n", *ahost);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    *ahost = hp->h_name;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef SIGURG
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigemptyset (&set);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigaddset (&set, SIGURG);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigprocmask (SIG_BLOCK, &set, &oset);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    oldmask = sigblock(sigmask(SIGURG));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    for (;;) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        s = rresvport(&lport);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (s < 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (errno == EAGAIN)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                fprintf(stderr, "socket: %s\n",
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                    catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                    NetMiscAllPortsInUse,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                    "All ports in use"));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            fprintf(stderr, "socket: All ports in use\n");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    perror(catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        NetMiscRcmdSocket,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        "rcmd: socket"));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinperror("rcmd: socket");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef SIGURG
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinsigprocmask (SIG_SETMASK, &oset,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin(sigset_t *)NULL);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinsigsetmask(oldmask);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinreturn (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef F_SETOWN
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        fcntl(s, F_SETOWN, pid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        sin.sin_family = hp->h_addrtype;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        bcopy(hp->h_addr_list[0], (caddr_t)&sin.sin_addr, hp->h_length);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        sin.sin_port = rport;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (connect(s, (struct sockaddr *)&sin, sizeof (sin)) >= 0)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            break;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void) close(s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (errno == EADDRINUSE) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            lport--;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            continue;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (errno == ECONNREFUSED && timo <= 16) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            sleep(timo);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            timo *= 2;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            continue;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (hp->h_addr_list[1] != NULL) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            int oerrno = errno;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            fprintf(stderr,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "%s %s: ", catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                NetMiscAllPortsInUse,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "connect to address"),
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                inet_ntoa(sin.sin_addr));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            "connect to address %s: ", inet_ntoa(sin.sin_addr));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            errno = oerrno;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            perror(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            hp->h_addr_list++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            bcopy(hp->h_addr_list[0], (caddr_t)&sin.sin_addr,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                hp->h_length);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            fprintf(stderr, catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                NetMiscTrying,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "Trying %s...\n"),
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                fprintf(stderr, "Trying %s...\n",
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                inet_ntoa(sin.sin_addr));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                continue;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        perror(hp->h_name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef SIGURG
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            sigprocmask (SIG_SETMASK, &oset, (sigset_t *)NULL);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            sigsetmask(oldmask);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    lport--;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (fd2p == 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        write(s, "", 1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            lport = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    } else {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        char num[8];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            int s2 = rresvport(&lport), s3;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            int len = sizeof (from);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (s2 < 0)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            goto bad;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            listen(s2, 1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) snprintf(num, sizeof(num), "%d", lport);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (write(s, num, strlen(num)+1) != strlen(num)+1) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            perror(catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                NetMiscSettingUpStderr,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "write: setting up stderr"));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                perror("write: setting up stderr");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                (void) close(s2);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                goto bad;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        s3 = accept(s2, (struct sockaddr *)&from, &len);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) close(s2);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (s3 < 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            perror(catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                NetMiscAccept,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "accept"));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                perror("accept");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                lport = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                goto bad;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        *fd2p = s3;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            from.sin_port = ntohs((u_short)from.sin_port);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (from.sin_family != AF_INET ||
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            from.sin_port >= IPPORT_RESERVED) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            fprintf(stderr,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if NLS
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "%s\n",
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                catgets(_libc_cat, NetMiscSet,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                NetMiscProtocolFailure,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "socket: protocol failure in circuit setup."));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                "socket: protocol failure in circuit setup.\n");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            goto bad2;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    (void) write(s, locuser, strlen(locuser)+1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    (void) write(s, remuser, strlen(remuser)+1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    (void) write(s, cmd, strlen(cmd)+1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (read(s, &c, 1) != 1) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        perror(*ahost);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        goto bad2;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (c != 0) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        while (read(s, &c, 1) == 1) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) write(2, &c, 1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (c == '\n')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                break;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        goto bad2;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef SIGURG
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigprocmask (SIG_SETMASK, &oset, (sigset_t *)NULL);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigsetmask(oldmask);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    return (s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinbad2:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (lport)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void) close(*fd2p);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinbad:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    (void) close(s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef SIGURG
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef _POSIX_SOURCE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigprocmask (SIG_SETMASK, &oset, (sigset_t *)NULL);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sigsetmask(oldmask);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinextern int ruserok(const char *rhost, int superuser, const char *ruser, const char *luser)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    FILE *hostf;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char fhost[MAXHOSTNAMELEN];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int first = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    register const char *sp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    register char *p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int baselen = -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    uid_t saveuid;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    saveuid = geteuid();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    sp = rhost;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    p = fhost;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    while (*sp) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (*sp == '.') {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (baselen == -1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                baselen = sp - rhost;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            *p++ = *sp++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        } else {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            *p++ = isupper(*sp) ? tolower(*sp++) : *sp++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    *p = '\0';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    hostf = superuser ? (FILE *)0 : fopen(_PATH_HEQUIV, "r");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinagain:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (hostf) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (!_validuser(hostf, fhost, luser, ruser, baselen)) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            (void) fclose(hostf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            seteuid(saveuid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void) fclose(hostf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (first == 1) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        struct stat sbuf;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        struct passwd *pwd;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        char pbuf[MAXPATHLEN];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        first = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ((pwd = getpwnam(luser)) == NULL)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void)strcpy(pbuf, pwd->pw_dir);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void)strcat(pbuf, "/.rhosts");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void)seteuid(pwd->pw_uid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ((hostf = fopen(pbuf, "r")) == NULL) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            seteuid(saveuid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        (void)fstat(fileno(hostf), &sbuf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (sbuf.st_uid && sbuf.st_uid != pwd->pw_uid) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            fclose(hostf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            seteuid(saveuid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        goto again;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    seteuid(saveuid);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinint
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin_validuser(FILE *hostf, const char *rhost, const char *luser,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinconst char *ruser, int baselen)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char *user;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char ahost[MAXHOSTNAMELEN];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    register char *p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int hostvalid = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int uservalid = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    while (fgets(ahost, sizeof (ahost), hostf)) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* We need to get rid of all comments. */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        p = strchr (ahost, '#');
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (p) *p = '\0';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        p = ahost;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        while (*p != '\n' && *p != ' ' && *p != '\t' && *p != '\0') {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            *p = isupper(*p) ? tolower(*p) : *p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            p++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (*p == ' ' || *p == '\t') {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            *p++ = '\0';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            while (*p == ' ' || *p == '\t')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                p++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            user = p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            while (*p != '\n' && *p != ' ' && *p != '\t' && *p != '\0')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                p++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        } else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            user = p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        *p = '\0';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    /* Adding new authentication -Nilendu */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* enable all host for + entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('+' == ahost[0] && '\0' == ahost[1] )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            hostvalid = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* enable all user for + entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('+' == user[0] && '\0' == user[1] )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            uservalid = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable all host for - entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('-' == ahost[0] && '\0' == ahost[1] )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            hostvalid = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable all user for - entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('-' == user[0] && '\0' == user[1] )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            uservalid = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef YP
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable host from -hostname entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('-' == ahost[0] && '@' != ahost[1]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && _checkhost(rhost, &ahost[1], baselen))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable host from -@netgroup entry for host */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('-' == ahost[0] && '@' == ahost[1] && '\0' != ahost[2]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && _checknetgrouphost(rhost, &ahost[2], baselen))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable user from -user entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('\0' != *user && user[0] == '-' && user[1] != '@'
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && !strcmp(&user[1], ruser))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* disable user from -@netgroup entry for user */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('\0' != *user && user[0] == '-' && user[1] == '@'
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && user[2] != '\0' && _checknetgroupuser(ruser, &user[2]))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* enable host from +@netgroup entry for host */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('+' == ahost[0] && '@' == ahost[1] && '\0' != ahost[2])
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            hostvalid = _checknetgrouphost(rhost, &ahost[2], baselen);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            hostvalid = _checkhost(rhost, ahost, baselen);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        /* enable user from +@netgroup entry for user */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ('\0' != *user && user[0] == '+'
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && user[1] == '@' && user[2] != '\0')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            uservalid = _checknetgroupuser(ruser, &user[2]);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            uservalid = !strcmp(ruser, *user ? user : luser);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (hostvalid && uservalid)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        hostvalid = hostvalid ? 1 : _checkhost(rhost, ahost, baselen);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        uservalid = uservalid ? 1 : !stricmp(ruser,*user ? user : luser);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (hostvalid && uservalid)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif /* YP */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        hostvalid = uservalid = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    return (-1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinint
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin_checkhost(const char *rhost, const char *lhost, int len)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    static char ldomain[MAXHOSTNAMELEN + 1];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    static char *domainp = NULL;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    static int nodomain = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    register char *cp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (len == -1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return(!strcmp(rhost, lhost));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (strncmp(rhost, lhost, len))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (!strcmp(rhost, lhost))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return(1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (*(lhost + len) != '\0')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (nodomain)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (!domainp) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (gethostname(ldomain, sizeof(ldomain)) == -1) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            nodomain = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        ldomain[MAXHOSTNAMELEN] = (char) 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if ((domainp = index(ldomain, '.')) == (char *)NULL) {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            nodomain = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        for (cp = ++domainp; *cp; ++cp)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            if (isupper(*cp))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin                *cp = tolower(*cp);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    return(!strcmp(domainp, rhost + len +1));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#ifdef YP
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic int
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin_checknetgrouphost(const char *rhost, const char *netgr, int baselen)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char *host, *user, *domain;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int status;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (NULL == nisdomain)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        yp_get_default_domain(&nisdomain);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    setnetgrent(netgr);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    while (1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        while (1 == (status = getnetgrent(&host, &user, &domain))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && NULL == host
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && NULL != domain
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && 0 != strcmp(domain, nisdomain))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            ;  /* find valid host entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (0 == status || NULL == host)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            endnetgrent();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if(1 == _checkhost(rhost, host, baselen))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            endnetgrent();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic int
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin_checknetgroupuser(const char *ruser, const char *netgr)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    char *host, *user, *domain;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    int status;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    if (NULL == nisdomain)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        yp_get_default_domain(&nisdomain);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    setnetgrent(netgr);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    while (1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        while (1 == (status = getnetgrent(&host, &user, &domain))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && NULL == user
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && NULL != domain
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            && 0 != strcmp(domain, nisdomain))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            ;  /* find valid user entry */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if (0 == status || NULL == user)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            endnetgrent();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        if(0 == strcmp(ruser, user))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            endnetgrent();
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin            return 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin        }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin    }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif /* YP */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif