110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* $NetBSD: startdaemon.c,v 1.9 1997/10/05 15:12:04 mrg Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94";
|
|
#else
|
|
__RCSID("$NetBSD: startdaemon.c,v 1.9 1997/10/05 15:12:04 mrg Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/un.h>
|
|
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <err.h>
|
|
#include "lp.h"
|
|
#include "pathnames.h"
|
|
|
|
extern uid_t uid, euid;
|
|
|
|
/*
|
|
* Tell the printer daemon that there are new files in the spool directory.
|
|
*/
|
|
|
|
int
|
|
startdaemon(printer)
|
|
char *printer;
|
|
{
|
|
struct sockaddr_un un;
|
|
int s, n;
|
|
char buf[BUFSIZ];
|
|
|
|
s = socket(AF_UNIX, SOCK_STREAM, 0);
|
|
if (s < 0) {
|
|
warn("socket");
|
|
return(0);
|
|
}
|
|
memset(&un, 0, sizeof(un));
|
|
un.sun_family = AF_UNIX;
|
|
strncpy(un.sun_path, _PATH_SOCKETNAME, sizeof(un.sun_path) - 1);
|
|
#ifndef SUN_LEN
|
|
#define SUN_LEN(unp) (strlen((unp)->sun_path) + 2)
|
|
#endif
|
|
seteuid(euid);
|
|
if (connect(s, (struct sockaddr *)&un, SUN_LEN(&un)) < 0) {
|
|
seteuid(uid);
|
|
warn("connect");
|
|
(void)close(s);
|
|
return(0);
|
|
}
|
|
seteuid(uid);
|
|
n = snprintf(buf, sizeof(buf), "\1%s\n", printer);
|
|
if (write(s, buf, n) != n) {
|
|
warn("write");
|
|
(void)close(s);
|
|
return(0);
|
|
}
|
|
if (read(s, buf, 1) == 1) {
|
|
if (buf[0] == '\0') { /* everything is OK */
|
|
(void)close(s);
|
|
return(1);
|
|
}
|
|
putchar(buf[0]);
|
|
}
|
|
while ((n = read(s, buf, sizeof(buf))) > 0)
|
|
fwrite(buf, 1, n, stdout);
|
|
(void)close(s);
|
|
return(0);
|
|
}
|