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compat/daemon.c

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This commit is contained in:
Nicholas Marriott 2008-06-18 19:36:27 +00:00
parent 19b7946a85
commit fed1a3ba8a
3 changed files with 74 additions and 3 deletions
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4
GNUmakefile
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@ -1,4 +1,4 @@
# $Id: GNUmakefile,v 1.21 2008-06-18 19:34:50 nicm Exp $
# $Id: GNUmakefile,v 1.22 2008-06-18 19:36:27 nicm Exp $
.PHONY: clean
@ -53,7 +53,7 @@ INSTALLMAN= install -g bin -o root -m 444
ifeq ($(shell uname),SunOS)
INCDIRS+= -Icompat
SRCS+= compat/strtonum.c
SRCS+= compat/strtonum.c compat/daemon.c
CFLAGS+= -DNO_STRTONUM -DNO_TREE_H -DNO_PATHS_H -DNO_SETPROCTITLE \
-DNO_DAEMON
endif

66
compat/daemon.c Normal file
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@ -0,0 +1,66 @@
/* $OpenBSD: daemon.c,v 1.6 2005/08/08 08:05:33 espie Exp $ */
/*-
* Copyright (c) 1990, 1993
* 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. 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 <fcntl.h>
#include <paths.h>
#include <unistd.h>
#include <stdlib.h>
#include "tmux.h"
int
daemon(int nochdir, int noclose)
{
int fd;
switch (fork()) {
case -1:
return (-1);
case 0:
break;
default:
_exit(0);
}
if (setsid() == -1)
return (-1);
if (!nochdir)
(void)chdir("/");
if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
(void)dup2(fd, STDIN_FILENO);
(void)dup2(fd, STDOUT_FILENO);
(void)dup2(fd, STDERR_FILENO);
if (fd > 2)
(void)close (fd);
}
return (0);
}

7
tmux.h
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@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.146 2008-06-18 19:34:50 nicm Exp $ */
/* $Id: tmux.h,v 1.147 2008-06-18 19:36:27 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -760,6 +760,11 @@ size_t strlcpy(char *, const char *, size_t);
size_t strlcat(char *, const char *, size_t);
#endif
#ifdef NO_DAEMON
/* daemon.c */
size_t daemon(int, int);
#endif
/* tmux.c */
extern volatile sig_atomic_t sigwinch;
extern volatile sig_atomic_t sigterm;