freebsd-dev/usr.sbin/lpr/common_source/startdaemon.c
Warner Losh 6ee8b26997 Two minor, pedantic fixes from bde for my last pedantic fixes, plus
the following from recent OpenBSD changes.  These changes (and all
I've made) should be merged back into 2.2 when they are vetted in
-current.

common.c:
OpenBSD 1.7: mickey: #if __STDC__ --> #ifdef __STDC__

displayq.c:
OpenBSD 1.8: deraadt: 1 byte oflows; millert

rmjob.c:
OpenBSD 1.8: deraadt: 1 byte oflows; millert

cmds.c:
OpenBSD 1.9: grr: restore traditional "all" keyword option - see lpc(8)
[[ This makes lpc status all work again -- imp ]]

printjob.c:
OpenBSD 1.17: deraadt: use sendmail -t
OpenBSD 1.16: mickey: #if __STDC__ --> #ifdef __STDC__
OpenBSD 1.15: deraadt: 1 byte oflow; Don.Lewis@tsc.tdk.com

recvjob.c:
OpenBSD 1.11: mickey: #if __STDC__ --> #ifdef __STDC__

lpr.c:
OpenBSD 1.19: mickey: #if __STDC__ --> #ifdef __STDC__

Obtained from: OpenBSD
1997-07-29 13:24:01 +00:00

115 lines
3.3 KiB
C

/*
* 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.
*/
#ifndef lint
static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94";
#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 "lp.h"
#include "pathnames.h"
extern uid_t uid, euid;
static void perr __P((char *));
/*
* Tell the printer daemon that there are new files in the spool directory.
*/
int
startdaemon(printer)
char *printer;
{
struct sockaddr_un un;
register int s, n;
char buf[BUFSIZ];
s = socket(AF_UNIX, SOCK_STREAM, 0);
if (s < 0) {
perr("socket");
return(0);
}
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
strcpy(un.sun_path, _PATH_SOCKETNAME);
#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);
perr("connect");
(void) close(s);
return(0);
}
seteuid(uid);
if (snprintf(buf, sizeof(buf), "\1%s\n", printer) > sizeof(buf) - 1) {
close(s);
return (0);
}
n = strlen(buf);
if (write(s, buf, n) != n) {
perr("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);
}
static void
perr(msg)
char *msg;
{
(void)printf("%s: %s: %s\n", name, msg, strerror(errno));
}