1331722Seadler/* 21553Srgrimes * Copyright (c) 1983, 1993, 1994 31553Srgrimes * The Regents of the University of California. All rights reserved. 41553Srgrimes * 51553Srgrimes * Redistribution and use in source and binary forms, with or without 61553Srgrimes * modification, are permitted provided that the following conditions 71553Srgrimes * are met: 81553Srgrimes * 1. Redistributions of source code must retain the above copyright 91553Srgrimes * notice, this list of conditions and the following disclaimer. 101553Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111553Srgrimes * notice, this list of conditions and the following disclaimer in the 121553Srgrimes * documentation and/or other materials provided with the distribution. 131553Srgrimes * 4. Neither the name of the University nor the names of its contributors 141553Srgrimes * may be used to endorse or promote products derived from this software 151553Srgrimes * without specific prior written permission. 161553Srgrimes * 171553Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181553Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191553Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201553Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211553Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221553Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231553Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241553Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251553Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261553Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271553Srgrimes * SUCH DAMAGE. 281553Srgrimes */ 291553Srgrimes 3029780Scharnier#if 0 31117592Sgad#ifndef lint 321553Srgrimesstatic char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94"; 33117592Sgad#endif /* not lint */ 3429780Scharnier#endif 35117592Sgad 36117541Sgad#include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */ 37117541Sgad__FBSDID("$FreeBSD$"); 381553Srgrimes 391553Srgrimes#include <sys/param.h> 401553Srgrimes#include <sys/socket.h> 4131492Swollman#include <sys/uio.h> 421553Srgrimes#include <sys/un.h> 431553Srgrimes 441553Srgrimes#include <dirent.h> 4529780Scharnier#include <err.h> 461553Srgrimes#include <stdio.h> 4729780Scharnier#include <string.h> 481553Srgrimes#include <unistd.h> 491553Srgrimes#include "lp.h" 501553Srgrimes#include "pathnames.h" 511553Srgrimes 521553Srgrimes/* 531553Srgrimes * Tell the printer daemon that there are new files in the spool directory. 541553Srgrimes */ 551553Srgrimes 561553Srgrimesint 5778146Sgadstartdaemon(const struct printer *pp) 581553Srgrimes{ 591553Srgrimes struct sockaddr_un un; 601553Srgrimes register int s, n; 6195299Sgad int connectres; 6231492Swollman char c; 631553Srgrimes 6431492Swollman s = socket(PF_LOCAL, SOCK_STREAM, 0); 651553Srgrimes if (s < 0) { 6629780Scharnier warn("socket"); 671553Srgrimes return(0); 681553Srgrimes } 691553Srgrimes memset(&un, 0, sizeof(un)); 7031492Swollman un.sun_family = AF_LOCAL; 711553Srgrimes strcpy(un.sun_path, _PATH_SOCKETNAME); 721553Srgrimes#ifndef SUN_LEN 731553Srgrimes#define SUN_LEN(unp) (strlen((unp)->sun_path) + 2) 741553Srgrimes#endif 75241852Seadler PRIV_START 7695299Sgad connectres = connect(s, (struct sockaddr *)&un, SUN_LEN(&un)); 77241852Seadler PRIV_END 7895299Sgad if (connectres < 0) { 7995299Sgad warn("Unable to connect to %s", _PATH_SOCKETNAME); 8095299Sgad warnx("Check to see if the master 'lpd' process is running."); 811553Srgrimes (void) close(s); 821553Srgrimes return(0); 831553Srgrimes } 8431492Swollman 8531492Swollman /* 8631492Swollman * Avoid overruns without putting artificial limitations on 8731492Swollman * the length. 8831492Swollman */ 8931492Swollman if (writel(s, "\1", pp->printer, "\n", (char *)0) <= 0) { 9029780Scharnier warn("write"); 911553Srgrimes (void) close(s); 921553Srgrimes return(0); 931553Srgrimes } 9431492Swollman if (read(s, &c, 1) == 1) { 9531492Swollman if (c == '\0') { /* everything is OK */ 961553Srgrimes (void) close(s); 971553Srgrimes return(1); 981553Srgrimes } 9931492Swollman putchar(c); 1001553Srgrimes } 10131492Swollman while ((n = read(s, &c, 1)) > 0) 10231492Swollman putchar(c); 1031553Srgrimes (void) close(s); 1041553Srgrimes return(0); 1051553Srgrimes} 106