355b4669e025ff377602b6fc7caaf30dbc218371jacobs/*
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * CDDL HEADER START
355b4669e025ff377602b6fc7caaf30dbc218371jacobs *
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * The contents of this file are subject to the terms of the
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * Common Development and Distribution License (the "License").
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * You may not use this file except in compliance with the License.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs *
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * or http://www.opensolaris.org/os/licensing.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * See the License for the specific language governing permissions
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * and limitations under the License.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs *
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * When distributing Covered Code, include this CDDL HEADER in each
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * If applicable, add the following below this CDDL HEADER, with the
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * fields enclosed by brackets "[]" replaced with your own identifying
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * information: Portions Copyright [yyyy] [name of copyright owner]
355b4669e025ff377602b6fc7caaf30dbc218371jacobs *
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * CDDL HEADER END
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs/*
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * Use is subject to license terms.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs *
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs/* $Id: lpd-port.c 155 2006-04-26 02:34:54Z ktou $ */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <config-site.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <stdio.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <stdlib.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <unistd.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <sys/types.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <sys/stat.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <fcntl.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <stdarg.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <string.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <signal.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <sys/socket.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <netinet/in.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <arpa/inet.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <netdb.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <errno.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <syslog.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <values.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <stropts.h> /* for sendfd */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <sys/uio.h> /* for sendmsg stuff */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <pwd.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <sys/sendfile.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <ctype.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef HAVE_PRIV_H
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#include <priv.h>
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifndef JOB_ID_FILE
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#define JOB_ID_FILE "/var/run/rfc-1179.seq"
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif /* JOB_ID_FILE */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobssendfd(int sockfd, int fd)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "sendfd(%d, %d)", sockfd, fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#if defined(sun) && defined(unix) && defined(I_SENDFD)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (ioctl(sockfd, I_SENDFD, fd));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct iovec iov[1];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct msghdr msg;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef CMSG_DATA
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct cmsghdr cmp[1];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[2]; /* send/recv 2 byte protocol */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs iov[0].iov_base = buf;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs iov[0].iov_len = 2;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs cmp[0].cmsg_level = SOL_SOCKET;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs cmp[0].cmsg_type = SCM_RIGHTS;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs cmp[0].cmsg_len = sizeof (struct cmsghdr) + sizeof (int);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * (int *)CMSG_DATA(cmp) = fd;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs buf[1] = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs buf[0] = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_control = cmp;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_controllen = sizeof (struct cmsghdr) + sizeof (int);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs iov[0].iov_base = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs iov[0].iov_len = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_accrights = (caddr_t)&fd;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_accrights = sizeof (fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_iov = iov;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_iovlen = 1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_name = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs msg.msg_namelen = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (sendmsg(sockfd, &msg, 0));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic void
355b4669e025ff377602b6fc7caaf30dbc218371jacobsnull(int i)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
10144ea86a21f583d4eec553d1a18da7544ba6dejacobssock_connect(int sock, char *host, int timeout)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct hostent *hp;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct servent *sp;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#if defined(HAVE_GETIPNODEBYNAME) && defined(HAVE_RRESVPORT_AF)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct sockaddr_in6 sin;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct sockaddr_in sin;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs static void (*old_handler)();
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes int err, error_num;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs unsigned timo = 1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /*
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * Get the host address and port number to connect to.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (host == NULL) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* linux style NULL usage */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) memset((char *)&sin, (int)NULL, sizeof (sin));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#if defined(HAVE_GETIPNODEBYNAME) && defined(HAVE_RRESVPORT_AF)
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((hp = getipnodebyname(host, AF_INET6, AI_DEFAULT,
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes &error_num)) == NULL) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOENT;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) memcpy((caddr_t)&sin.sin6_addr, hp->h_addr, hp->h_length);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs sin.sin6_family = hp->h_addrtype;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((hp = gethostbyname(host)) == NULL) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOENT;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) memcpy((caddr_t)&sin.sin_addr, hp->h_addr, hp->h_length);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs sin.sin_family = hp->h_addrtype;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((sp = getservbyname("printer", "tcp")) == NULL) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOENT;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#if defined(HAVE_GETIPNODEBYNAME) && defined(HAVE_RRESVPORT_AF)
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs sin.sin6_port = sp->s_port;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs sin.sin_port = sp->s_port;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsretry:
355b4669e025ff377602b6fc7caaf30dbc218371jacobs old_handler = signal(SIGALRM, null);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) alarm(timeout);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (connect(sock, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) alarm(0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) signal(SIGALRM, old_handler);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (errno == ECONNREFUSED && timo <= 16) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) sleep(timo);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs timo *= 2;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs goto retry;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) alarm(0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) signal(SIGALRM, old_handler);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (sock);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobsnext_job_id()
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int fd, result = getpid() % 1000;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* gain back enough privilege to open the id file */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((priv_set(PRIV_ON, PRIV_EFFECTIVE,
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes PRIV_FILE_DAC_READ, PRIV_FILE_DAC_WRITE, NULL)) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ERR, "lpd_port:next_job_id:priv_set fails: : %m");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs seteuid(0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* open the sequence file */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (((fd = open(JOB_ID_FILE, O_RDWR)) < 0) && (errno == ENOENT))
355b4669e025ff377602b6fc7caaf30dbc218371jacobs fd = open(JOB_ID_FILE, O_CREAT|O_EXCL|O_RDWR, 0644);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "sequence file fd: %d", fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* drop our privilege again */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* drop file access privilege */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs priv_set(PRIV_OFF, PRIV_PERMITTED,
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes PRIV_FILE_DAC_READ, PRIV_FILE_DAC_WRITE, NULL);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs seteuid(getuid());
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (fd >= 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* wait for a lock on the file */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (lockf(fd, F_LOCK, 0) == 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[8];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int next;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* get the current id */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (void) memset(buf, 0, sizeof (buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (read(fd, buf, sizeof (buf)) > 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs result = atoi(buf);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs next = ((result < 999) ? (result + 1) : 0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* store the next id in the file */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs snprintf(buf, sizeof (buf), "%.3d", next);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((lseek(fd, 0, SEEK_SET) == 0) &&
355b4669e025ff377602b6fc7caaf30dbc218371jacobs (ftruncate(fd, 0) == 0))
355b4669e025ff377602b6fc7caaf30dbc218371jacobs write(fd, buf, strlen(buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
c1ecd8b9404ee0d96d93f02e82c441b9bb149a3djacobs close(fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "next_job_id() is %d", result);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (result);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobsreserved_port()
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int result = -1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int port;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* gain back enough privilege to open a reserved port */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((priv_set(
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes PRIV_ON, PRIV_EFFECTIVE, PRIV_NET_PRIVADDR, NULL)) != 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ERR, "priv_set fails for net_privaddr %m");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs seteuid(0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#if defined(HAVE_GETIPNODEBYNAME) && defined(HAVE_RRESVPORT_AF)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs port = 0; /* set to 0, rresvport_af() will find us one. */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs result = rresvport_af(&port, AF_INET6);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs port = IPPORT_RESERVED - 1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs while (((result = rresvport(&port)) < 0) && (port >= 0))
355b4669e025ff377602b6fc7caaf30dbc218371jacobs port--;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* drop our privilege again */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
355b4669e025ff377602b6fc7caaf30dbc218371jacobs priv_set(PRIV_OFF, PRIV_PERMITTED, PRIV_NET_PRIVADDR, NULL);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs seteuid(getuid());
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (result);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic char *
355b4669e025ff377602b6fc7caaf30dbc218371jacobsget_user_name()
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs static struct passwd *p = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((p = getpwuid(getuid())) != NULL)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (p->pw_name);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return ("unknown");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic void
355b4669e025ff377602b6fc7caaf30dbc218371jacobsadd_args(int ac, char **av, char *buf, size_t len)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs while (ac--) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs strlcat(buf, " ", len);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs strlcat(buf, *(av++), len);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobsmassage_control_data(char *data, int id)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char *line, *iter = NULL;
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes char *ptr, *mod_ptr, *datacpy;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char host[BUFSIZ];
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes int host_present = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if (gethostname(host, sizeof (host)) != 0)
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if ((datacpy = strdup(data)) == NULL) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes for (ptr = strtok_r(datacpy, "\n", &iter); ptr != NULL;
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes ptr = strtok_r(NULL, "\n", &iter)) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (ptr[0] == 'H') {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if (strncmp(++ptr, host, strlen(host)) != 0) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes host_present = 1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs } else if ((ptr[0] == 'P') || (ptr[0] == 'L')) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* check the user name */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs uid_t uid = getuid();
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct passwd *pw;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if (uid == 0) { /* let root do what they want */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs continue;
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if ((pw = getpwuid(uid)) == NULL) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1); /* failed */
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs len = strlen(pw->pw_name);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if ((strncmp(++ptr, pw->pw_name, len) != 0)) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1); /* failed */
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs } else if ((islower(ptr[0]) != 0) || (ptr[0] == 'U')) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* check/fix df?XXXhostname */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs ptr++;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if (strlen(ptr) < 6) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes /*
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes * As ptr is a copy of the string (df?XXX...) the code
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes * needs to work on the original, hence the need for
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes * mod_ptr. No need to check for a NULL mod_ptr
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes * because the required string must already exist as
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes * ptr is a copy of the original data.
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes */
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes mod_ptr = strstr(data, ptr);
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes if ((mod_ptr[0] == 'd') && (mod_ptr[1] == 'f') &&
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes (mod_ptr[3] == 'X') && (mod_ptr[4] == 'X') &&
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes (mod_ptr[5] == 'X')) {
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes mod_ptr[3] = '0' + (id / 100) % 10;
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes mod_ptr[4] = '0' + (id / 10) % 10;
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes mod_ptr[5] = '0' + id % 10;
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes if (strncmp(&mod_ptr[6], host, strlen(host))
41232a16855167ab2d0a91f671d4660993d6939dJonathan Cowper-Andrewes != 0) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes } else {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes free(datacpy);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes if (!host_present) {
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes return (-1);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes }
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobssend_lpd_message(int fd, char *fmt, ...)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs size_t size;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs va_list ap;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs va_start(ap, fmt);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs size = vsnprintf(buf, sizeof (buf), fmt, ap);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs va_end(ap);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (size == 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs size = 1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "lpd_messsage(%d, %s)", fd, buf);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (write(fd, buf, size) != size) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = EIO;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((read(fd, buf, 1) != 1) || (buf[0] != 0))
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobssend_data_file(int sock, char *dfname, char *name)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs size_t len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs off_t off = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs struct stat st;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[32];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int fd = -1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (strcmp(name, "standard input") != 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((fd = open(name, O_RDONLY)) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (fstat(fd, &st) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs } else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs st.st_size = MAXINT; /* should be 0 */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* request data file transfer, read ack/nack */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOSPC;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_lpd_message(sock, "\003%d %s\n", st.st_size, dfname) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (fd != -1) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* write the data */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (sendfile(sock, fd, &off, st.st_size) != st.st_size)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs close(fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* request ack/nack after the data transfer */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = EIO;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_lpd_message(sock, "") < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
355b4669e025ff377602b6fc7caaf30dbc218371jacobssend_control_file(int sock, char *data, int id)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes char *ptr, *iter = NULL;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes char *datacpy = NULL;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes char *host = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs len = strlen(data);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes if ((datacpy = strdup(data)) == NULL)
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes return (-1);
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes syslog(LOG_DEBUG, "cfA: %s\n", datacpy);
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes for (ptr = strtok_r(datacpy, "\n", &iter); ptr != NULL;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes ptr = strtok_r(NULL, "\n", &iter)) {
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes if (ptr[0] != 'H')
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes continue;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes ptr++;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes host = ptr;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes syslog(LOG_DEBUG, "hostname: %s\n", host);
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes }
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes free(datacpy);
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* request data file transfer, read ack/nack */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOSPC;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_lpd_message(sock, "\002%d cfA%.3d%s\n", len, id, host) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* write the data */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (write(sock, data, len) != len)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* request ack/nack after the data transfer */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = EIO;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_lpd_message(sock, "") < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
10144ea86a21f583d4eec553d1a18da7544ba6dejacobssubmit_job(int sock, char *printer, int job_id, char *path)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs struct stat st;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int current = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs off_t off = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char *metadata = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char *ptr, *iter = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int fd, err;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int sent_files = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs size_t len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs /* open the control file */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((fd = open(path, O_RDONLY)) < 0) {
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs syslog(LOG_ERR, "submit_job(%d, %s, %d, %s): open(): %m",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes sock, printer, job_id, path);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs return (-1);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs /* get the size of the control file */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (fstat(fd, &st) < 0) {
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs syslog(LOG_ERR, "submit_job(%d, %s, %d, %s): fstat(): %m",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes sock, printer, job_id, path);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs close(fd);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs return (-1);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs /* allocate memory for the control file */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((metadata = calloc(1, st.st_size + 1)) == NULL) {
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs syslog(LOG_ERR, "submit_job(%d, %s, %d, %s): calloc(): %m",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes sock, printer, job_id, path);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs close(fd);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs return (-1);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs /* read in the control file */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (read(fd, metadata, st.st_size) != st.st_size) {
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs syslog(LOG_ERR, "submit_job(%d, %s, %d, %s): read(): %m",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes sock, printer, job_id, path);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs free(metadata);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs close(fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* massage the control file */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (massage_control_data(metadata, job_id) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* bad control data, dump the job */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ALERT,
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes "bad control file, possible subversion attempt");
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs free(metadata);
e49444533f596b3ba3b1c737aa885da109f08a55Jonathan Cowper-Andrewes errno = EINVAL;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs close(fd);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* request to transfer the job */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_lpd_message(sock, "\002%s\n", printer) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* no such (or disabled) queue, got to love rfc-1179 */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = ENOENT;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* send the control data */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_control_file(sock, metadata, job_id) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs err = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs write(sock, "\001\n", 2); /* abort */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = err;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* walk the control file sending the data files */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs for (ptr = strtok_r(metadata, "\n", &iter); ptr != NULL;
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes ptr = strtok_r(NULL, "\n", &iter)) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char *name = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (ptr[0] != 'U')
355b4669e025ff377602b6fc7caaf30dbc218371jacobs continue;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs name = strtok_r(NULL, "\n", &iter);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (name[0] != 'N')
355b4669e025ff377602b6fc7caaf30dbc218371jacobs continue;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs ptr++;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs name++;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (send_data_file(sock, ptr, name) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs err = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs write(sock, "\001\n", 2); /* abort */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = err;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (strcmp(name, "standard input") != 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs sent_files++;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* write back the job-id */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs err = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((fd = open(path, O_WRONLY)) >= 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs ftruncate(fd, 0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs write(fd, &job_id, sizeof (job_id));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs close(fd);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = err;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (sent_files != 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs err = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs close(sock);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = err;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (0);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
10144ea86a21f583d4eec553d1a18da7544ba6dejacobsquery(int fd, char *printer, int ac, char **av)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int rc, len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* build the request */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs snprintf(buf, sizeof (buf), "\04%s", printer);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs add_args(ac, av, buf, sizeof (buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs strlcat(buf, "\n", sizeof (buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs len = strlen(buf);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (((rc = write(fd, buf, len)) >= 0) && (rc != len)) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = EMSGSIZE;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs rc = -1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs } else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs rc = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (rc);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic int
10144ea86a21f583d4eec553d1a18da7544ba6dejacobscancel(int fd, char *printer, int ac, char **av)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int rc, len;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* build the request */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs snprintf(buf, sizeof (buf), "\05%s %s", printer, get_user_name());
355b4669e025ff377602b6fc7caaf30dbc218371jacobs add_args(ac, av, buf, sizeof (buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs strlcat(buf, "\n", sizeof (buf));
355b4669e025ff377602b6fc7caaf30dbc218371jacobs len = strlen(buf);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (((rc = write(fd, buf, len)) >= 0) && (rc != len)) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs errno = EMSGSIZE;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs rc = -1;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs } else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs rc = 0;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (rc);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobsstatic void
355b4669e025ff377602b6fc7caaf30dbc218371jacobsusage(char *program)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char *name;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs setreuid(getuid(), getuid());
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((name = strrchr(program, '/')) == NULL)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs name = program;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs name++;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs fprintf(stderr, "usage:\t%s -H host [-t timeout] -s queue control ]\n",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes name);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs fprintf(stderr, "\t%s -H host [-t timeout] -c queue [user|job ...]\n",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes name);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs fprintf(stderr, "\t%s -H host [-t timeout] -q queue [user|job ...]\n",
0485cf53f277ad1364b39e092bfa2480dbcac144Jonathan Cowper-Andrewes name);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit(EINVAL);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs/*
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * The main program temporarily loses privilege while searching the command
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * line arguments. It then allocates any resources it need privilege for
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * job-id, reserved port. Once it has the resources it needs, it perminently
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * drops all elevated privilege. It ghen connects to the remote print service
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * based on destination hostname. Doing it this way reduces the potenential
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * opportunity for a breakout with elevated privilege, breakout with an
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * unconnected reserved port, and exploitation of the remote print service
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * by a calling program.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
355b4669e025ff377602b6fc7caaf30dbc218371jacobsint
355b4669e025ff377602b6fc7caaf30dbc218371jacobsmain(int ac, char *av[])
355b4669e025ff377602b6fc7caaf30dbc218371jacobs{
355b4669e025ff377602b6fc7caaf30dbc218371jacobs enum { OP_NONE, OP_SUBMIT, OP_QUERY, OP_CANCEL } operation = OP_NONE;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs int fd, c, timeout = 0, exit_code = 0;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs char *host = NULL, *queue = NULL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs uid_t uid = getuid();
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik priv_set_t *saveset;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs openlog("lpd-port", LOG_PID, LOG_LPR);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#ifdef PRIV_ALLSETS
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* lose as much as we can perminently and temporarily drop the rest. */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik if ((saveset = priv_allocset()) == NULL) {
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik syslog(LOG_ERR, "lpd_port: priv_allocset saveset failed: %m\n");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik priv_basicset(saveset);
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik (void) priv_addset(saveset, PRIV_NET_PRIVADDR);
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik (void) priv_addset(saveset, PRIV_FILE_DAC_READ);
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik (void) priv_addset(saveset, PRIV_FILE_DAC_WRITE);
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((setppriv(PRIV_SET, PRIV_PERMITTED, saveset)) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ERR, "lpd_port:setppriv:priv_set failed: %m");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik priv_freeset(saveset);
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /*
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * These privileges permanently dropped in next_job_id() and
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * reserved_port()
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik if (priv_set(PRIV_OFF, PRIV_EFFECTIVE, PRIV_NET_PRIVADDR,
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik PRIV_FILE_DAC_READ, PRIV_FILE_DAC_WRITE, (char *)NULL) < 0) {
634e26ec75c89095090605284938356a3145f2b8Casper H.S. Dik syslog(LOG_ERR, "lpd_port:priv_set:priv_off failed: %m");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "using privs");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#else
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "no privs");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs seteuid(uid);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs#endif
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs while ((c = getopt(ac, av, "H:t:c:q:s:")) != EOF) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs switch (c) {
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs case 'H':
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs host = optarg;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs break;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs case 't':
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs timeout = atoi(optarg);
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case 'c':
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (operation != OP_NONE)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs usage(av[0]);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs operation = OP_CANCEL;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs queue = optarg;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case 'q':
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (operation != OP_NONE)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs usage(av[0]);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs operation = OP_QUERY;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs queue = optarg;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case 's':
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (operation != OP_NONE)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs usage(av[0]);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs operation = OP_SUBMIT;
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs queue = optarg;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs default:
355b4669e025ff377602b6fc7caaf30dbc218371jacobs usage(av[0]);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* does not return */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((host == NULL) || (queue == NULL) || (timeout < 0) ||
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs (operation == OP_NONE))
355b4669e025ff377602b6fc7caaf30dbc218371jacobs usage(av[0]);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if (operation == OP_SUBMIT) /* get a job-id if we need it */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((c = next_job_id()) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ERR, "lpd_port:main:next_job_id fails");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (-1);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((fd = reserved_port()) < 0) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_ERR, "reserved_port() failed %m");
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (errno);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /*
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * we no longer want or need any elevated privilege, lose it all
355b4669e025ff377602b6fc7caaf30dbc218371jacobs * permanently.
355b4669e025ff377602b6fc7caaf30dbc218371jacobs */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs setreuid(uid, uid);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* connect to the print service */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if ((fd = sock_connect(fd, host, timeout)) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (errno);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* perform the requested operation */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs switch (operation) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case OP_SUBMIT: /* transfer the job, close the fd */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (submit_job(fd, queue, c, av[optind]) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit_code = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case OP_QUERY: /* send the query string, return the fd */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (query(fd, queue, ac - optind, &av[optind]) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit_code = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs case OP_CANCEL: /* send the cancel string, return the fd */
10144ea86a21f583d4eec553d1a18da7544ba6dejacobs if (cancel(fd, queue, ac - optind, &av[optind]) < 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit_code = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs break;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs default: /* This should never happen */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit_code = EINVAL;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* if the operation succeeded, send the fd to our parent */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs if ((exit_code == 0) && (sendfd(1, fd) < 0)) {
355b4669e025ff377602b6fc7caaf30dbc218371jacobs char buf[BUFSIZ];
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs exit_code = errno;
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs /* sendfd() failed, dump the socket data for the heck of it */
355b4669e025ff377602b6fc7caaf30dbc218371jacobs while ((c = read(fd, buf, sizeof (buf))) > 0)
355b4669e025ff377602b6fc7caaf30dbc218371jacobs write(1, buf, c);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs }
355b4669e025ff377602b6fc7caaf30dbc218371jacobs
355b4669e025ff377602b6fc7caaf30dbc218371jacobs syslog(LOG_DEBUG, "exit code: %d", exit_code);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs return (exit_code);
355b4669e025ff377602b6fc7caaf30dbc218371jacobs}