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Rather than relying on pure luck to get the log file on STDERR_FILENO,

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explictly dup2 the log file dscriptor to STDERR_FILENO and close the
original.
This commit is contained in:
thorpej 2002-10-26 01:47:52 +00:00
parent d2ed7ebdd1
commit 2b3b2f08d6
2 changed files with 25 additions and 13 deletions
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21
usr.sbin/lpr/lpd/printjob.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: printjob.c,v 1.36 2002/09/04 13:49:20 abs Exp $ */
/* $NetBSD: printjob.c,v 1.37 2002/10/26 01:47:52 thorpej Exp $ */
/*
* Copyright (c) 1983, 1993
@ -45,7 +45,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
#if 0
static char sccsid[] = "@(#)printjob.c 8.7 (Berkeley) 5/10/95";
#else
__RCSID("$NetBSD: printjob.c,v 1.36 2002/09/04 13:49:20 abs Exp $");
__RCSID("$NetBSD: printjob.c,v 1.37 2002/10/26 01:47:52 thorpej Exp $");
#endif
#endif /* not lint */
@ -150,17 +150,24 @@ printjob(void)
struct stat stb;
struct queue *q, **qp;
struct queue **queue;
int i, nitems;
int i, nitems, fd;
off_t pidoff;
int errcnt, count = 0;
init(); /* set up capabilities */
(void)write(STDOUT_FILENO, "", 1); /* ack that daemon is started */
(void)close(STDERR_FILENO); /* set up log file */
if (open(LF, O_WRONLY|O_APPEND, 0664) < 0) {
(void)write(STDOUT_FILENO, "", 1); /* ack that daemon is started */
/* set up log file */
if ((fd = open(LF, O_WRONLY|O_APPEND, 0664)) < 0) {
syslog(LOG_ERR, "%s: %m", LF);
(void)open(_PATH_DEVNULL, O_WRONLY);
fd = open(_PATH_DEVNULL, O_WRONLY);
}
if (fd > 0) {
(void) dup2(fd, STDERR_FILENO);
(void) close(fd);
} else
(void)close(STDERR_FILENO);
setgid(getegid());
pid = getpid(); /* for use with lprm */
setpgrp(0, pid);

17
usr.sbin/lpr/lpd/recvjob.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: recvjob.c,v 1.16 2002/07/14 15:28:00 wiz Exp $ */
/* $NetBSD: recvjob.c,v 1.17 2002/10/26 01:47:52 thorpej Exp $ */
/*
* Copyright (c) 1983, 1993
@ -45,7 +45,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
#if 0
static char sccsid[] = "@(#)recvjob.c 8.2 (Berkeley) 4/27/95";
#else
__RCSID("$NetBSD: recvjob.c,v 1.16 2002/07/14 15:28:00 wiz Exp $");
__RCSID("$NetBSD: recvjob.c,v 1.17 2002/10/26 01:47:52 thorpej Exp $");
#endif
#endif /* not lint */
@ -91,7 +91,7 @@ void
recvjob(void)
{
struct stat stb;
int status;
int status, fd;
/*
* Perform lookup for printer name or abbreviation
@ -110,11 +110,16 @@ recvjob(void)
if (cgetstr(bp, "lo", &LO) == -1)
LO = DEFLOCK;
(void)close(2); /* set up log file */
if (open(LF, O_WRONLY|O_APPEND, 0664) < 0) {
/* Set up the log file. */
if ((fd = open(LF, O_WRONLY|O_APPEND, 0664)) < 0) {
syslog(LOG_ERR, "%s: %m", LF);
(void)open(_PATH_DEVNULL, O_WRONLY);
fd = open(_PATH_DEVNULL, O_WRONLY);
}
if (fd > 0) {
(void) dup2(fd, STDERR_FILENO);
(void) close(fd);
} else
(void) close(STDERR_FILENO);
if (chdir(SD) < 0)
frecverr("%s: %s: %m", printer, SD);