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* Add fix for Debian bug #536574 -- Can be enabled by -DACCTON_OFF

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* Add helper program fstab-decode to make it easier to handle
   /etc/mtab content. Patch by Miloslav Trmac and Fedora.
 * Add fix for Debian bug #335023 - Make sure TERM is set on FreeBSD.
 * Add fix for Debian bug #374038 - Make it clear that shutdown -c can
   only cancel a waiting shutdown, not an active one.
 * Add not to pidof manual page about the use of readlink(2). Patch by
   Bill Nottingham and Fedora.
 * Add changes for Debian bug #68621 - Add PAM support for programs spawned
   by init on the console like sulogin. Based on patch by Topi Miettinen.
This commit is contained in:
Werner Fink 2010-03-23 14:37:01 +00:00
parent 8517410f31
commit f69ea1f550
11 changed files with 263 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/Changelog
View File

@ -57,6 +57,16 @@ sysvinit (2.88dsf) UNRELEASED; urgency=low
* sulogin - add the possibility to reset the terminal io
* Fix some minor problems
* init - enable is_selinux_enabled() to detect selinuxfs
* Add fix for Debian bug #536574 -- Can be enabled by -DACCTON_OFF
* Add helper program fstab-decode to make it easier to handle
/etc/mtab content. Patch by Miloslav Trmac and Fedora.
* Add fix for Debian bug #335023 - Make sure TERM is set on FreeBSD.
* Add fix for Debian bug #374038 - Make it clear that shutdown -c can
only cancel a waiting shutdown, not an active one.
* Add not to pidof manual page about the use of readlink(2). Patch by
Bill Nottingham and Fedora.
* Add changes for Debian bug #68621 - Add PAM support for programs spawned
by init on the console like sulogin. Based on patch by Topi Miettinen.
-- Petter Reinholdtsen <pere@hungry.com> Sun, 12 Jul 2009 19:58:10 +0200

45
man/fstab-decode.8 Normal file
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@ -0,0 +1,45 @@
.\" A man page for fstab-decode(8).
.\"
.\" Copyright (C) 2006 Red Hat, Inc. All rights reserved.
.\"
.\" This copyrighted material is made available to anyone wishing to use,
.\" modify, copy, or redistribute it subject to the terms and conditions of the
.\" GNU General Public License v.2.
.\"
.\" This program is distributed in the hope that it will be useful, but WITHOUT
.\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
.\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
.\" more details.
.\"
.\" You should have received a copy of the GNU General Public License along
.\" with this program; if not, write to the Free Software Foundation, Inc.,
.\" 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
.\"
.\" Author: Miloslav Trmac <mitr@redhat.com>
.TH fstab-decode 8 "May 2006"
.SH NAME
fstab-decode \- run a command with fstab-encoded arguments
.SH SYNOPSIS
\fB fstab-decode\fR \fICOMMAND\fR [\fIARGUMENT\fR]...
.SH DESCRIPTION
.B fstab-decode
decodes escapes in the specified \FIARGUMENT\fRs
and uses them to run \fICOMMAND\fR.
The argument escaping uses the same rules as path escaping in
\fB/etc/fstab\fR,
.B /etc/mtab
and \fB/proc/mtab\fR.
.SH EXIT STATUS
.B fstab-decode
exits with status 127 if
.I COMMAND
can't be run.
Otherwise it exits with the status returned by \fICOMMAND\fR.
.SH EXAMPLES
.B fstab-decode umount $(awk '$3 == "vfat" { print $2 }' /etc/fstab)

6
man/pidof.8
View File

@ -77,7 +77,11 @@ the program behaves according to the name under which it is called.
When \fIpidof\fP is invoked with a full pathname to the program it
should find the pid of, it is reasonably safe. Otherwise it is possible
that it returns pids of running programs that happen to have the same name
as the program you're after but are actually other programs.
as the program you're after but are actually other programs. Note that
that the executable name of running processes is calculated with
.BR readlink (2),
so symbolic links to executables will also match.
.SH SEE ALSO
.BR shutdown (8),
.BR init (8),

7
man/shutdown.8
View File

@ -93,9 +93,10 @@ you'd expect.
.\"}}}
.\"{{{ -c
.IP \fB\-c\fP
Cancel an already running shutdown. With this option it is of course
not possible to give the \fBtime\fP argument, but you can enter a
explanatory message on the command line that will be sent to all users.
Cancel a waiting shutdown. ("shutdown now" is no longer waiting.) With
this option it is of course not possible to give the time argument, but
you can enter explanatory message arguments on the command line that
will be sent to all users.
.\"}}}
.\"{{{ -t sec
.IP "\fB\-t\fP \fIsec\fP"

42
src/Makefile
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@ -8,19 +8,20 @@
# Version: @(#)Makefile 2.85-13 23-Mar-2004 miquels@cistron.nl
#
CPPFLAGS = -DUSE_PAM
CFLAGS ?= -ansi -O2 -fomit-frame-pointer
CFLAGS += -W -Wall -D_GNU_SOURCE
override CFLAGS += -W -Wall -D_GNU_SOURCE
STATIC =
# For some known distributions we do not build all programs, otherwise we do.
BIN =
SBIN = init halt shutdown runlevel killall5
SBIN = init halt shutdown runlevel killall5 fstab-decode
USRBIN = last mesg
MAN1 = last.1 lastb.1 mesg.1
MAN5 = initscript.5 inittab.5
MAN8 = halt.8 init.8 killall5.8 pidof.8 poweroff.8 reboot.8 runlevel.8
MAN8 += shutdown.8 telinit.8
MAN8 += shutdown.8 telinit.8 fstab-decode.8
ifeq ($(DISTRO),)
BIN += mountpoint
@ -31,6 +32,7 @@ MAN8 += sulogin.8 bootlogd.8
endif
ifeq ($(DISTRO),Debian)
CPPFLAGS+= -DACCTON_OFF
BIN += mountpoint
SBIN += sulogin bootlogd
MAN1 += mountpoint.1
@ -43,6 +45,7 @@ MAN1 += wall.1
endif
ifeq ($(DISTRO),SuSE)
CPPFLAGS+= -DUSE_SYSFS -DSANE_TIO -DSIGINT_ONLYONCE
BIN += mountpoint
SBIN += sulogin
USRBIN += utmpdump
@ -50,28 +53,39 @@ MAN1 += utmpdump.1 mountpoint.1
MAN8 += sulogin.8
endif
ID = $(shell id -u)
BIN_OWNER = root
BIN_GROUP = root
BIN_COMBO = $(BIN_OWNER):$(BIN_GROUP)
STRIP = strip -s -R .comment
INSTALL_EXEC = install -o $(BIN_OWNER) -g $(BIN_GROUP) -m 755
INSTALL_DATA = install -o $(BIN_OWNER) -g $(BIN_GROUP) -m 644
ifeq ($(ID),0)
INSTALL_EXEC = install -o $(BIN_OWNER) -g $(BIN_GROUP) -m 755
INSTALL_DATA = install -o $(BIN_OWNER) -g $(BIN_GROUP) -m 644
else
INSTALL_EXEC = install -m 755
INSTALL_DATA = install -m 644
endif
INSTALL_DIR = install -m 755 -d
MANDIR = /usr/share/man
ifeq ($(WITH_SELINUX),yes)
SELINUX_DEF=-DWITH_SELINUX
INIT_SELIBS=-lsepol -lselinux
SULOGIN_SELIBS=-lselinux
SELINUX_DEF = -DWITH_SELINUX
INITLIBS += -lsepol -lselinux
SULOGINLIBS = -lselinux
else
SELINUX_DEF=
INIT_SELIBS=
SULOGIN_SELIBS=
SELINUX_DEF =
INITLIBS =
SULOGINLIBS =
endif
# Additional libs for GNU libc.
ifneq ($(findstring -DUSE_PAM,$(CPPFLAGS)),)
INITLIBS += -lpam -lpam_misc
endif
# Additional libs for GNU libc.
ifneq ($(wildcard /usr/lib*/libcrypt.a),)
LCRYPT = -lcrypt
SULOGINLIBS += -lcrypt
endif
all: $(BIN) $(SBIN) $(USRBIN)
@ -81,7 +95,7 @@ all: $(BIN) $(SBIN) $(USRBIN)
#%.o: %.c
# $(CC) $(CFLAGS) $(CPPFLAGS) -c $^ -o $@
init: LDLIBS += $(INIT_SELIBS) $(STATIC)
init: LDLIBS += $(INITLIBS) $(STATIC)
init: init.o init_utmp.o
halt: halt.o ifdown.o hddown.o utmp.o reboot.h
@ -96,7 +110,7 @@ utmpdump: utmpdump.o
runlevel: runlevel.o
sulogin: LDLIBS += $(LCRYPT) $(SULOGIN_SELIBS) $(STATIC)
sulogin: LDLIBS += $(SULOGINLIBS) $(STATIC)
sulogin: sulogin.o
wall: dowall.o wall.o

3
src/bootlogd.c
View File

@ -263,6 +263,9 @@ int consolename(char *res, int rlen)
}
#ifdef TIOCGDEV
# ifndef ENOIOCTLCMD
# define ENOIOCTLCMD 515
# endif
if (ioctl(0, TIOCGDEV, &kdev) == 0) {
int r = findtty(res, "/dev", rlen, (dev_t)kdev);
if (0 != r)

86
src/fstab-decode.c Normal file
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@ -0,0 +1,86 @@
/* fstab-decode(8).
Copyright (c) 2006 Red Hat, Inc. All rights reserved.
This copyrighted material is made available to anyone wishing to use, modify,
copy, or redistribute it subject to the terms and conditions of the GNU General
Public License v.2.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301, USA.
Author: Miloslav Trmac <mitr@redhat.com> */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* Decode the fstab-encoded string in place. */
static void
decode(char *s)
{
const char *src;
char *dest;
src = s;
dest = s;
while (*src != '\0') {
if (*src != '\\')
*dest = *src++;
else {
static const struct repl {
char orig[4];
size_t len;
char new;
} repls[] = {
#define R(X, Y) { X, sizeof(X) - 1, Y }
R("\\", '\\'),
R("011", '\t'),
R("012", '\n'),
R("040", ' '),
R("134", '\\')
#undef R
};
size_t i;
for (i = 0; i < sizeof (repls) / sizeof (repls[0]);
i++) {
if (memcmp(src + 1, repls[i].orig,
repls[i].len) == 0) {
*dest = repls[i].new;
src += 1 + repls[i].len;
goto found;
}
}
*dest = *src++;
found:
;
}
dest++;
}
*dest = '\0';
}
int
main (int argc, char *argv[])
{
size_t i;
if (argc < 2) {
fprintf(stderr, "Usage: fstab-decode command [arguments]\n");
return EXIT_FAILURE;
}
for (i = 2; i < (size_t)argc; i++)
decode(argv[i]);
execvp(argv[1], argv + 1);
fprintf(stderr, "fstab-decode: %s: %s\n", argv[1], strerror(errno));
return 127;
}

22
src/ifdown.c
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@ -77,15 +77,33 @@ int ifdown(void)
continue;
if (strchr(ifr[i].ifr_name, ':') != NULL)
continue;
ifr[i].ifr_flags &= ~(IFF_UP);
/* Read interface flags */
if (ioctl(fd, SIOCGIFFLAGS, &ifr[i]) < 0) {
fprintf(stderr, "ifdown: shutdown ");
perror(ifr[i].ifr_name);
continue;
}
/*
* Expected in <net/if.h> according to
* "UNIX Network Programming".
*/
#ifdef ifr_flags
# define IRFFLAGS ifr_flags
#else /* Present on kFreeBSD */
# define IRFFLAGS ifr_flagshigh
#endif
if (ifr[i].IRFFLAGS & IFF_UP) {
ifr[i].IRFFLAGS &= ~(IFF_UP);
if (ioctl(fd, SIOCSIFFLAGS, &ifr[i]) < 0) {
fprintf(stderr, "ifdown: shutdown ");
perror(ifr[i].ifr_name);
}
}
#undef IRFFLAGS
}
}
close(fd);
return 0;
}

42
src/init.c
View File

@ -53,11 +53,10 @@
#include <sys/time.h>
#ifdef WITH_SELINUX
#include <selinux/selinux.h>
#include <sys/mount.h>
# include <selinux/selinux.h>
# include <sys/mount.h>
#endif
#ifdef __i386__
# ifdef __GLIBC__
/* GNU libc 2.x */
@ -71,6 +70,11 @@
# endif
#endif
#ifdef USE_PAM
# include <security/pam_appl.h>
# include <security/pam_misc.h>
#endif
#include "init.h"
#include "initreq.h"
#include "paths.h"
@ -746,6 +750,16 @@ void console_stty(void)
return;
}
#ifdef __FreeBSD_kernel__
/*
* The kernel of FreeBSD expects userland to set TERM. Usually, we want
* "cons25". Later, gettys might disagree on this (i.e. we're not using
* syscons) but some boot scripts, like /etc/init.d/xserver-xorg, still
* need a non-dumb terminal.
*/
putenv ("TERM=cons25");
#endif
(void) tcgetattr(fd, &tty);
tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
@ -902,6 +916,20 @@ void init_freeenv(char **e)
}
#ifdef USE_PAM
static pam_handle_t *pamh = NULL;
static const struct pam_conv conv = { misc_conv, NULL };
# define PAM_FAIL_CHECK(func, args...) \
{ \
const int __ret = (func)(args); \
if (__ret != PAM_SUCCESS) { \
initlog(L_VB, "%s", pam_strerror(pamh, __ret)); \
pam_end(pamh, __ret); \
exit(1); \
} \
}
#endif /* USE_PAM */
/*
* Fork and execute.
*
@ -1031,6 +1059,14 @@ int spawn(CHILD *ch, int *res)
sigprocmask(SIG_SETMASK, &omask, NULL);
#ifdef USE_PAM
PAM_FAIL_CHECK(pam_start, "init", "root" , &conv, &pamh);
PAM_FAIL_CHECK(pam_set_item, pamh, PAM_TTY, console_dev);
PAM_FAIL_CHECK(pam_acct_mgmt, pamh, PAM_SILENT);
PAM_FAIL_CHECK(pam_open_session, pamh, PAM_SILENT);
PAM_FAIL_CHECK(pam_setcred, pamh, PAM_ESTABLISH_CRED|PAM_SILENT);
#endif
/*
* Update utmp/wtmp file prior to starting
* any child. This MUST be done right here in

19
src/shutdown.c
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@ -32,11 +32,18 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE /* otherwise `extern char **environ' is missed */
#endif
#ifndef ACCTON_OFF
# define ACCTON_OFF 0
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <time.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
@ -330,7 +337,7 @@ void fastdown()
/* First idle init. */
if (kill(1, SIGTSTP) < 0) {
fprintf(stderr, "shutdown: can't idle init.\r\n");
fprintf(stderr, "shutdown: can't idle init: %s.\r\n", strerror(errno));
exit(1);
}
@ -357,7 +364,17 @@ void fastdown()
write_wtmp("shutdown", "~~", 0, RUN_LVL, "~~");
/* This is for those who have quota installed. */
#if defined(ACCTON_OFF)
# if (ACCTON_OFF > 1) && (_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500))
/* This is an alternative way to disable accounting, saving a fork() */
if (acct(NULL))
fprintf(stderr, "shutdown: can not stop process accounting: %s.\r\n", strerror(errno));
# elif (ACCTON_OFF > 0)
spawn(1, "accton", "off", NULL);
# else
spawn(1, "accton", NULL);
# endif
#endif
spawn(1, "quotaoff", "-a", NULL);
sync();

4
src/utmpdump.c
View File

@ -200,7 +200,11 @@ gettok(char *line, char *dest, int size, int eatspace)
}
void
# ifdef __GNUC__
undump(FILE *fp, int forever __attribute__((unused)), int oldfmt)
#else
undump(FILE *fp, int forever, int oldfmt)
#endif
{
struct utmp ut;
struct oldutmp uto;