GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/lpr/lpc/../common_source/startdaemon.c Lines: 0 42 0.0 %
Date: 2017-11-13 Branches: 0 20 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: startdaemon.c,v 1.17 2015/10/27 15:23:28 millert Exp $	*/
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/*	$NetBSD: startdaemon.c,v 1.10 1998/07/18 05:04:39 lukem Exp $	*/
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/*
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 * Copyright (c) 1983, 1993, 1994
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <dirent.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <limits.h>
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#include <string.h>
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#include <signal.h>
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#include "lp.h"
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#include "pathnames.h"
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/*
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 * Tell the printer daemon that there are new files in the spool directory.
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 */
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int
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startdaemon(char *printer)
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{
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	struct sockaddr_un un;
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	int s;
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	size_t n;
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	char buf[BUFSIZ];
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	s = socket(AF_UNIX, SOCK_STREAM, 0);
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	if (s < 0) {
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		warn("socket");
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		return(0);
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	}
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	memset(&un, 0, sizeof(un));
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	un.sun_family = AF_UNIX;
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	strlcpy(un.sun_path, _PATH_SOCKETNAME, sizeof(un.sun_path));
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	siginterrupt(SIGINT, 1);
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	PRIV_START;
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	if (connect(s, (struct sockaddr *)&un, sizeof(un)) < 0) {
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		int saved_errno = errno;
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		if (errno == EINTR && gotintr) {
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			PRIV_END;
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			siginterrupt(SIGINT, 0);
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			close(s);
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			return(0);
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		}
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		PRIV_END;
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		siginterrupt(SIGINT, 0);
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		warnc(saved_errno, "connect");
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		(void)close(s);
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		return(0);
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	}
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	PRIV_END;
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	siginterrupt(SIGINT, 0);
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	if ((n = snprintf(buf, sizeof(buf), "\1%s\n", printer)) >= sizeof(buf) ||
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	    n == -1) {
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		close(s);
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		return (0);
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	}
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	/* XXX atomicio inside siginterrupt? */
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	if (write(s, buf, n) != n) {
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		warn("write");
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		(void)close(s);
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		return(0);
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	}
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	if (read(s, buf, 1) == 1) {
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		if (buf[0] == '\0') {		/* everything is OK */
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			(void)close(s);
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			return(1);
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		}
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		putchar(buf[0]);
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	}
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	while ((n = read(s, buf, sizeof(buf))) > 0)
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		fwrite(buf, 1, n, stdout);
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	(void)close(s);
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	return(0);
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}