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/*
* 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.
* 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94";
#endif /* not lint */
#endif
#include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/un.h>
#include <dirent.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "lp.h"
#include "pathnames.h"
/*
* Tell the printer daemon that there are new files in the spool directory.
*/
int
startdaemon(const struct printer *pp)
{
struct sockaddr_un un;
register int s, n;
int connectres;
char c;
s = socket(PF_LOCAL, SOCK_STREAM, 0);
if (s < 0) {
warn("socket");
return(0);
}
memset(&un, 0, sizeof(un));
un.sun_family = AF_LOCAL;
strcpy(un.sun_path, _PATH_SOCKETNAME);
#ifndef SUN_LEN
#define SUN_LEN(unp) (strlen((unp)->sun_path) + 2)
#endif
PRIV_START
connectres = connect(s, (struct sockaddr *)&un, SUN_LEN(&un));
PRIV_END
if (connectres < 0) {
warn("Unable to connect to %s", _PATH_SOCKETNAME);
warnx("Check to see if the master 'lpd' process is running.");
(void) close(s);
return(0);
}
/*
* Avoid overruns without putting artificial limitations on
* the length.
*/
if (writel(s, "\1", pp->printer, "\n", (char *)0) <= 0) {
warn("write");
(void) close(s);
return(0);
}
if (read(s, &c, 1) == 1) {
if (c == '\0') { /* everything is OK */
(void) close(s);
return(1);
}
putchar(c);
}
while ((n = read(s, &c, 1)) > 0)
putchar(c);
(void) close(s);
return(0);
}
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