File: insserv.c

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insserv 1.14.0-5.4
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  • area: main
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  • size: 1,452 kB
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  • sloc: ansic: 4,037; sh: 1,198; perl: 563; makefile: 185
file content (3726 lines) | stat: -rw-r--r-- 98,902 bytes parent folder | download
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/*
 * insserv(.c)
 *
 * Copyright 2000-2009 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany,
 *				    2003 SuSE Linux AG, Germany.
 *				    2004 SuSE LINUX AG, Germany.
 *			       2005-2009 SUSE LINUX Products GmbH, Germany.
 * Copyright 2005,2008,2009 Petter Reinholdtsen
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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
 *
 */

#define MINIMAL_MAKE	1	/* Remove disabled scripts from .depend.boot,
				 * .depend.start, .depend.halt, and .depend.stop */
#define MINIMAL_RULES	1	/* ditto */

#include <pwd.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/syscall.h>
#include <dirent.h>
#include <regex.h>
#include <errno.h>
#include <limits.h>
#include <getopt.h>
#if defined(USE_RPMLIB) && (USE_RPMLIB > 0)
# include <rpm/rpmlib.h>
# include <rpm/rpmmacro.h>
#endif /* USE_RPMLIB */
#ifdef SUSE
# include <sys/mount.h>
#endif /* SUSE */
#include "listing.h"

#ifdef __m68k__ /* Fix #493637 */
#  define aligned(a)
#endif

#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
# ifndef POSIX_FADV_SEQUENTIAL
#  define posix_fadvise(fd, off, len, adv)  (-1)
# endif
#endif

#ifndef PATH_MAX
# ifdef MAXPATHLEN
#  define PATH_MAX  MAXPATHLEN
# else
#  define PATH_MAX  2048
# endif
#endif

#ifndef MAXSYMLINKS
# define MAXSYMLINKS 20
#endif

#ifdef SUSE
# define DEFAULT_START_LVL	"3 5"
# define DEFAULT_STOP_LVL	"3 5"
# define USE_KILL_IN_BOOT	1
# define USE_COMPAT_EMPTY	1
static inline void oneway(char *restrict stop) attribute((always_inline,nonnull(1)));
static inline void oneway(char *restrict stop)
{
    char * ptr = stop;
    while ((ptr = strpbrk(ptr, "016sS")))
	*ptr++ = ' ';
}
#else /* not SUSE, but Debian */
# define DEFAULT_START_LVL	"2 3 4 5"
# define DEFAULT_STOP_LVL	"0 1 6"
# define DEFAULT_DEPENDENCY	"$remote_fs $syslog"
# undef  USE_KILL_IN_BOOT
# undef  USE_COMPAT_EMPTY
#endif /* not SUSE, but Debian */

#ifndef  INITDIR
# define INITDIR	"/etc/init.d"
#endif
#ifndef  OVERRIDEDIR
# define OVERRIDEDIR	"/etc/insserv/overrides"
#endif
#ifndef  INSCONF
# define INSCONF	"/etc/insserv.conf"
#endif

const char *upstartjob_path = "/lib/init/upstart-job";

/*
 * For a description of regular expressions see regex(7).
 */
#define COMM		"^#[[:blank:]]*"
#define VALUE		":[[:blank:]]*([[:print:]]*)"
/* The second substring contains our value (the first is all) */
#define SUBNUM		2
#define SUBNUM_SHD	3
#define START		"[-_]+start"
#define STOP		"[-_]+stop"

/* The main regular search expressions */
#define PROVIDES	COMM "provides" VALUE
#define REQUIRED	COMM "required"
#define SHOULD		COMM "(x[-_]+[a-z0-9_-]*)?should"
#define BEFORE		COMM "(x[-_]+[a-z0-9_-]*)?start[-_]+before"
#define AFTER		COMM "(x[-_]+[a-z0-9_-]*)?stop[-_]+after"
#define DEFAULT		COMM "default"
#define REQUIRED_START  REQUIRED START VALUE
#define REQUIRED_STOP	REQUIRED STOP  VALUE
#define SHOULD_START	SHOULD   START VALUE
#define SHOULD_STOP	SHOULD   STOP  VALUE
#define START_BEFORE	BEFORE   VALUE
#define STOP_AFTER	AFTER    VALUE
#define DEFAULT_START	DEFAULT  START VALUE
#define DEFAULT_STOP	DEFAULT  STOP  VALUE
#define DESCRIPTION	COMM "description" VALUE
#define INTERACTIVE	COMM "(x[-_]+[a-z0-9_-]*)?interactive" VALUE

/* System facility search within /etc/insserv.conf */
#define EQSIGN		"([[:blank:]]*[=:][[:blank:]]*|[[:blank:]]+)"
#define CONFLINE	"^(\\$[a-z0-9_-]+)" EQSIGN "([[:print:]]*)"
#define CONFLINE2	"^(<[a-z0-9_-]+>)"  EQSIGN "([[:print:]]*)"
#define SUBCONF		2
#define SUBCONFNUM	4

/* The root file system */
static char *root;

/* The main line buffer if unique */
static char buf[LINE_MAX];

/* When to be verbose, and what level of verbosity */
static int verbose = 0;

/* When to be verbose */
static boolean dryrun = false;

/* When paths set do not add root if any */
static boolean set_override = false;
static boolean set_insconf = false;

/* Search results points here */
typedef struct lsb_struct {
    char *provides;
    char *required_start;
    char *required_stop;
    char *should_start;
    char *should_stop;
    char *start_before;
    char *stop_after;
    char *default_start;
    char *default_stop;
    char *description;
    char *interactive;
} attribute((aligned(sizeof(char*)))) lsb_t;

/* Search results points here */
typedef struct reg_struct {
    regex_t prov;
    regex_t req_start;
    regex_t req_stop;
    regex_t shl_start;
    regex_t shl_stop;
    regex_t start_bf;
    regex_t stop_af;
    regex_t def_start;
    regex_t def_stop;
    regex_t desc;
    regex_t interact;
} attribute((aligned(sizeof(regex_t)))) reg_t;

typedef struct creg_struct {
    regex_t isysfaci;
    regex_t isactive;
} attribute((aligned(sizeof(regex_t)))) creg_t;

static lsb_t script_inf;
static reg_t reg;
static creg_t creg;
static char empty[1] = "";

/* Delimeters used for spliting results with strsep(3) */
const char *const delimeter = " ,;\t";

/*
 * push and pop directory changes: pushd() and popd()
 */
typedef struct pwd_struct {
    list_t	deep;
    char	*pwd;
} __align pwd_t;
#define getpwd(list)	list_entry((list), struct pwd_struct, deep)

static list_t pwd = { &pwd, &pwd }, * topd = &pwd;

static void pushd(const char *restrict const path) attribute((nonnull(1)));
static void pushd(const char *restrict const path)
{
    pwd_t *restrict dir;

    if (posix_memalign((void*)&dir, sizeof(void*), alignof(pwd_t)) == 0) {
	if (!(dir->pwd = getcwd((char*)0, 0)))
	    goto err;
	insert(&dir->deep, topd->prev);
	if (chdir(path) < 0)
	    goto err;
	return;
    }
err:
    error ("pushd() can not change to directory %s: %s\n", path, strerror(errno));
}

static void popd(void)
{
    pwd_t * dir;

    if (list_empty(topd))
	goto out;
    dir = getpwd(topd->prev);
    if (chdir(dir->pwd) < 0)
	error ("popd() can not change directory %s: %s\n", dir->pwd, strerror(errno));
    delete(topd->prev);
    free(dir->pwd);
    free(dir);
out:
    return;
}

/*
 * Linked list of system facilities services and their replacment
 */
typedef struct string {
    int *restrict ref;
    char	*name;
} __align string_t;

typedef struct repl {
    list_t     r_list;
    string_t	 r[1];
    ushort	flags;
} __align repl_t;
#define getrepl(arg)	list_entry((arg), struct repl, r_list)

typedef struct faci {
    list_t	 list;
    list_t    replace;
    char	*name;
} __align faci_t;
#define getfaci(arg)	list_entry((arg), struct faci, list)

static list_t sysfaci = { &sysfaci, &sysfaci }, *sysfaci_start = &sysfaci;

/*
 * Remember requests for required or should services and expand `$' token
 */
static void rememberreq(service_t *restrict serv, uint bit,
		        const char *restrict required) attribute((noinline,nonnull(1,3)));
static void rememberreq(service_t * restrict serv, uint bit, const char * restrict required)
{
    const char type = (bit & REQ_KILL) ? 'K' : 'S';
    const char * token;
    char * tmp = strdupa(required);
    list_t * ptr, * list;
    ushort old = bit;

    if (!tmp)
	error("%s", strerror(errno));

    while ((token = strsep(&tmp, delimeter)) && *token) {
	service_t * req, * here, * need;
	boolean found = false;

	bit = old;

	switch(*token) {
	case '+':
	    /* This is an optional token */
	    token++;
	    bit &= ~REQ_MUST;
	    bit |=  REQ_SHLD;
	default:
	    req = addservice(token);
	    if (bit & REQ_KILL) {
		req  = getorig(req);
		list = &req->sort.rev;
		here = req;
		need = serv;
	    } else {
		serv = getorig(serv);
		list = &serv->sort.req;
		here = serv;
		need = req;
	    }
	    np_list_for_each(ptr, list) {
		if (!strcmp(getreq(ptr)->serv->name, need->name)) {
		    getreq(ptr)->flags |= bit;
		    found = true;
		    break;
		}
	    }
	    if (!found) {
		req_t *restrict this;
		if (posix_memalign((void*)&this, sizeof(void*), alignof(req_t)) != 0)
		    error("%s", strerror(errno));
		memset(this, 0, alignof(req_t));
		insert(&this->list, list->prev);
		this->flags = bit;
		this->serv = need;
	    }
	    /* Expand requested services for sorting */
	    requires(here, need, type);
	    break;
	case '$':
	    if (strcasecmp(token, "$null") == 0)
		break;
	    if (strcasecmp(token, "$all") == 0) {
		if (bit & REQ_KILL)
		    serv->attr.flags |= SERV_FIRST;
		else
		    serv->attr.flags |= SERV_ALL;
		break;
	    }
	    /* Expand the `$' token recursively down */
	    list_for_each(ptr, sysfaci_start) {
		if (!strcmp(token, getfaci(ptr)->name)) {
		    list_t * lst;
		    np_list_for_each(lst, &getfaci(ptr)->replace)
			rememberreq(serv, bit, getrepl(lst)->r[0].name);
		    break;
		}
	    }
	    break;
	}
    }
}

static void reversereq(service_t *restrict serv, uint bit,
		       const char *restrict list) attribute((noinline,nonnull(1,3)));
static void reversereq(service_t *restrict serv, uint bit, const char *restrict list)
{
    const char * token;
    char * tmp = strdupa(list);
    ushort old = bit;

    if (!tmp)
	error("%s", strerror(errno));

    while ((token = strsep(&tmp, delimeter)) && *token) {
	service_t * rev;
	list_t * ptr;

	bit = old;

	switch (*token) {
	case '+':
	    token++;
	    bit &= ~REQ_MUST;
	    bit |=  REQ_SHLD;
	default:
	    rev = addservice(token);
	    rememberreq(rev, bit, serv->name);
	    break;
	case '$':
	    list_for_each(ptr, sysfaci_start) {
		if (!strcmp(token, getfaci(ptr)->name)) {
		    list_t * lst;
		    np_list_for_each(lst, &getfaci(ptr)->replace)
			reversereq(serv, bit, getrepl(lst)->r[0].name);
		    break;
		}
	    }
	    break;
	}
    }
}

/*
 * Check required services for name
 */
static boolean chkrequired(service_t *restrict serv) attribute((nonnull(1)));
static boolean chkrequired(service_t *restrict serv)
{
    boolean ret = true;
    list_t * pos;

    if (!serv)
	goto out;
    serv = getorig(serv);

    np_list_for_each(pos, &serv->sort.req) {
	req_t *req = getreq(pos);
	service_t * must;

	if ((req->flags & REQ_MUST) == 0)
	    continue;
	must = req->serv;
	must = getorig(must);

	if ((must->attr.flags & (SERV_CMDLINE|SERV_ENABLED)) == 0) {
	    warn("Service %s has to be enabled to start service %s\n",
		 req->serv->name, serv->name);
	    ret = false;
	}
    }
#if 0
    if (serv->attr.flags & (SERV_CMDLINE|SERV_ENABLED))
	goto out;
    np_list_for_each(pos, &serv->sort.rev) {
	req_t *rev = getreq(pos);
	service_t * must;

	if ((rev->flags & REQ_MUST) == 0)
	    continue;
	must = rev->serv;
	must = getorig(must);

	if (must->attr.flags & (SERV_CMDLINE|SERV_ENABLED)) {
	    warn("Service %s has to be enabled to stop service %s\n",
		 serv->name, rev->serv->name);
	    ret = false;
	}
    }
#endif
out:
    return ret;
}

/*
 * Check dependencies for name as a service
 */
static boolean chkdependencies(service_t *restrict serv) attribute((nonnull(1)));
static boolean chkdependencies(service_t *restrict serv)
{
    const char * const name = serv->name;
    boolean ret = true;
    list_t * ptr;

    list_for_each(ptr, s_start) {
	service_t * cur = getservice(ptr);
	list_t * pos;

	if (!cur)
	    continue;

	if ((cur->attr.flags & SERV_ENABLED) == 0)
	    continue;

	if (cur->attr.flags & SERV_DUPLET)
	    continue;

	if (list_empty(&cur->sort.req))
	    continue;

	np_list_for_each(pos, &cur->sort.req) {
	    req_t *req = getreq(pos);
	    const ushort flags = req->serv->attr.flags;

	    if (!(req->flags & REQ_MUST))
		continue;

	    if (strcmp(req->serv->name, name) != 0)
		continue;

	    if ((cur->attr.flags & SERV_CMDLINE) && (flags & SERV_CMDLINE))
		continue;

	    warn("Service %s has to be enabled to start service %s\n",
		 name, cur->name);
	    ret = false;
	}
    }
    return ret;
}

/*
 * This helps us to work out the current symbolic link structure
 */
static inline service_t * current_structure(const char *const restrict this, const char order,
				     const int runlvl, const char type) attribute((always_inline,nonnull(1)));
static inline service_t * current_structure(const char *const this, const char order,
				     const int runlvl, const char type)
{
    service_t * serv = addservice(this);
    level_t * run;
    ushort here = map_runlevel_to_lvl(runlvl);

    if (type == 'K') {
	run = serv->stopp;
	if (!serv->attr.korder)
	    serv->attr.korder = 99;
	if (serv->attr.korder > order)
	    serv->attr.korder = order;
#ifdef SUSE
	/* This because SuSE boot script concept uses a differential link scheme. */
	here &= ~LVL_ONEWAY;
#endif /* SUSE */
    } else {
	run = serv->start;
	if (serv->attr.sorder < order)
	    serv->attr.sorder = order;
    }
    run->lvl |= here;

    return serv;
}

static void setlsb(const char *restrict const name) attribute((unused));
static void setlsb(const char *restrict const name)
{
    service_t * serv = findservice(name);
    if (serv)
	serv->attr.flags &= ~SERV_NOTLSB;
}

/*
 * This helps us to set none LSB conform scripts to required
 * max order, therefore we set a dependency to the first
 * lsb conform service found in current link scheme.
 */
static inline void nonlsb_script(void) attribute((always_inline));
static inline void nonlsb_script(void)
{
    list_t * pos;

    list_for_each(pos, s_start) {
	if (getservice(pos)->attr.flags & SERV_NOTLSB) {
	    service_t * req, * srv = getservice(pos);
	    list_t * tmp;
	    uchar max;

	    max = 0;
	    req = (service_t*)0;
	    list_for_each(tmp, s_start) {
		service_t * cur = getservice(tmp);
		if (cur->attr.flags & SERV_NOTLSB)
		    continue;
		if ((cur->attr.flags & SERV_ENABLED) == 0)
		    continue;
		if (!cur->attr.sorder)
		    continue;
		if ((srv->start->lvl & cur->start->lvl) == 0)
		    continue;
		if (cur->attr.sorder >= srv->attr.sorder)
		    continue;
		if (max < cur->attr.sorder) {
		    max = cur->attr.sorder;
		    req = cur;
		}
	    }

	    if (req)
		requires(srv, req, 'S');

	    max = 99;
	    req = (service_t*)0;
	    list_for_each(tmp, s_start) {
		service_t * cur = getservice(tmp);
		if (cur->attr.flags & SERV_NOTLSB)
		    continue;
		if ((cur->attr.flags & SERV_ENABLED) == 0)
		    continue;
		if (!cur->attr.korder)
		    continue;
		if ((srv->stopp->lvl & cur->stopp->lvl) == 0)
		    continue;
		if (cur->attr.korder <= srv->attr.korder)
		    continue;
		if (max > cur->attr.korder) {
		    max = cur->attr.korder;
		    req = cur;
		}
	    }

	    if (req)
		requires(req, srv, 'K');
	}
    }
}

/*
 * This helps us to get interactive scripts to be the only service
 * within on start or stop service group. Remaining problem is that
 * if required scripts are missed the order can be wrong.
 */
static inline void active_script(void) attribute((always_inline));
static inline void active_script(void)
{
    list_t * pos;
    int deep = 1;

    for (deep = 0; deep < 100; deep++) {
	list_for_each(pos, s_start) {
	    service_t * serv = getservice(pos);
	    list_t * tmp;

	    if (serv->attr.script == (char*)0)
		continue;

	    if ((serv->attr.flags & SERV_INTRACT) == 0)
		continue;

	    serv->attr.sorder = getorder(serv->attr.script, 'S');

	    if (serv->attr.sorder != deep)
		continue;

	    if (serv->attr.flags & SERV_DUPLET)
		continue;		/* Duplet */

	    list_for_each(tmp, s_start) {
		service_t * cur = getservice(tmp);
		const char * script;

		if (getorig(cur) == serv)
		    continue;

		if ((serv->start->lvl & cur->start->lvl) == 0)
		    continue;

		/*
		 * Use real script name for getorder()/setorder()
		 */
		if (cur->attr.script == (char*)0)
		    continue;
		script = cur->attr.script;

		cur->attr.sorder = getorder(script, 'S');

		if (cur->attr.sorder != deep)
		    continue;
		/*
		 * Increase order of members of the same start
		 * group and recalculate dependency order (`true')
		 */
		setorder(script, 'S', ++cur->attr.sorder, true);
	    }
	}
    }
}

/*
 * Last but not least the `$all' scripts will be set to the
 * beginning of the future stop order respectivly to the
 * end of the future start order.
 */
static inline void all_script(void) attribute((always_inline));
static inline void all_script(void)
{
    list_t * pos;

    list_for_each(pos, s_start) {
	service_t * serv = getservice(pos);
	list_t * tmp;

	if (serv->attr.flags & SERV_DUPLET)
	    continue;			/* Duplet */

	if (!(serv->attr.flags & SERV_FIRST))
	    continue;

	if (serv->attr.script == (char*)0)
	    continue;

	list_for_each(tmp, s_start) {
	    service_t * cur = getservice(tmp);

	    if (cur->attr.flags & SERV_DUPLET)
		continue;		/* Duplet */

	    if ((serv->stopp->lvl & cur->stopp->lvl) == 0)
		continue;

	    if (cur == serv)
		continue;

	    if (cur->attr.flags & SERV_FIRST)
		continue;

	    rememberreq(serv, REQ_SHLD|REQ_KILL, cur->name);
	}

	setorder(serv->attr.script, 'K', 1, false);
    }

    list_for_each(pos, s_start) {
	service_t * serv = getservice(pos);
	list_t * tmp;

	if (serv->attr.flags & SERV_DUPLET)
	    continue;			/* Duplet */

	if (!(serv->attr.flags & SERV_ALL))
	    continue;

	if (serv->attr.script == (char*)0)
	    continue;

	list_for_each(tmp, s_start) {
	    service_t * cur = getservice(tmp);

	    if (cur->attr.flags & SERV_DUPLET)
		continue;		/* Duplet */

	    if ((serv->start->lvl & cur->start->lvl) == 0)
		continue;

	    if (cur == serv)
		continue;

	    if (cur->attr.flags & SERV_ALL)
		continue;

	    rememberreq(serv, REQ_SHLD, cur->name);
	}
    }
}

/*
 * Make the dependency files
 */
static inline void makedep(void) attribute((always_inline));
static inline void makedep(void)
{
    FILE *boot, *start, *stop, *out;
#ifdef USE_KILL_IN_BOOT
    FILE *halt;
#endif /* USE_KILL_IN_BOOT */
    const char *target;
    service_t *serv;

    if (dryrun) {
#ifdef USE_KILL_IN_BOOT
	info(1, "dryrun, not creating .depend.boot, .depend.start, .depend.halt, and .depend.stop\n");
#else  /* not USE_KILL_IN_BOOT */
	info(1, "dryrun, not creating .depend.boot, .depend.start, and .depend.stop\n");
#endif /* not USE_KILL_IN_BOOT */
	return;
    }
    if (!(boot  = fopen(".depend.boot",  "w"))) {
	warn("fopen(.depend.stop): %s\n", strerror(errno));
	return;
    }

    if (!(start = fopen(".depend.start", "w"))) {
	warn("fopen(.depend.start): %s\n", strerror(errno));
	fclose(boot);
	return;
    }

    info(1, "creating .depend.boot\n");
    info(1, "creating .depend.start\n");

    lsort('S');					/* Sort into start order, set new sorder */

    target = (char*)0;
    fprintf(boot, "TARGETS =");
    while ((serv = listscripts(&target, 'S', LVL_BOOT))) {
	if (!serv)
	    continue;
#if defined(MINIMAL_MAKE) && (MINIMAL_MAKE != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* MINIMAL_MAKE */
	fprintf(boot, " %s", target);
    }
    fputc('\n', boot);

    target = (char*)0;
    fprintf(start, "TARGETS =");
    while ((serv = listscripts(&target, 'S', LVL_ALL))) {	/* LVL_ALL: nearly all but not BOOT */
	if (!serv)
	    continue;
#if defined(MINIMAL_MAKE) && (MINIMAL_MAKE != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* MINIMAL_MAKE */
	fprintf(start, " %s", target);
    }
    fputc('\n', start);

    fprintf(boot,  "INTERACTIVE =");
    fprintf(start, "INTERACTIVE =");

    target = (char*)0;
    while ((serv = listscripts(&target, 'S', LVL_BOOT|LVL_ALL))) {
	if (!serv)
	    continue;
#if defined(MINIMAL_MAKE) && (MINIMAL_MAKE != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* not MINIMAL_MAKE */

	if (list_empty(&serv->sort.req))
	    continue;

	if (serv->start->lvl & LVL_BOOT)
	    out = boot;
	else
	    out = start;

	if (serv->attr.flags & SERV_INTRACT)
	    fprintf(out, " %s", target);
    }
    fputc('\n', boot);
    fputc('\n', start);

    target = (char*)0;
    while ((serv = listscripts(&target, 'S', LVL_BOOT|LVL_ALL))) {
	boolean mark;
	list_t * pos;

	if (!serv)
	    continue;
#if defined(MINIMAL_RULES) && (MINIMAL_RULES != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* not MINIMAL_RULES */

	if (serv->start->lvl & LVL_BOOT)
	    out = boot;
	else
	    out = start;

	if (list_empty(&serv->sort.req))
	    continue;

	mark = false;

	np_list_for_each(pos, &serv->sort.req) {
	    req_t * req = getreq(pos);
	    service_t * dep = req->serv;
	    const char * name;

	    if (!dep)
		continue;

	    if (dep->attr.flags & SERV_DUPLET)
		continue;

#if defined(MINIMAL_RULES) && (MINIMAL_RULES != 0)
	    if (dep->attr.ref <= 0)
		continue;
#endif /* not MINIMAL_RULES */

	    /*
	     * No self dependcies or from the last
	     */
	    if (dep == serv || (dep->attr.flags & SERV_ALL))
		continue;

	    if ((serv->start->lvl & dep->start->lvl) == 0)
		continue;

	    if ((name = dep->attr.script) == (char*)0)
		continue;

	    if (!mark) {
		fprintf(out, "%s:", target);
		mark = true;
	    }
	    fprintf(out, " %s", name);
	}

	if (mark) fputc('\n', out);
    }

    fclose(boot);
    fclose(start);

    if (!(stop  = fopen(".depend.stop",  "w"))) {
	warn("fopen(.depend.stop): %s\n", strerror(errno));
	return;
    }

#ifdef USE_KILL_IN_BOOT
    if (!(halt = fopen(".depend.halt", "w"))) {
	warn("fopen(.depend.start): %s\n", strerror(errno));
	fclose(stop);
	return;
    }

    info(1, "creating .depend.halt\n");
#endif /* USE_KILL_IN_BOOT */
    info(1, "creating .depend.stop\n");

    lsort('K');					/* Sort into stop order, set new korder */

    target = (char*)0;
    fprintf(stop, "TARGETS =");
    while ((serv = listscripts(&target, 'K', LVL_NORM))) {	/* LVL_NORM: nearly all but not BOOT and not SINGLE */
	if (!serv)
	    continue;
#if defined(MINIMAL_MAKE) && (MINIMAL_MAKE != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* MINIMAL_MAKE */
	fprintf(stop, " %s", target);
    }
    fputc('\n', stop);

#ifdef USE_KILL_IN_BOOT
    target = (char*)0;
    fprintf(halt, "TARGETS =");
    while ((serv = listscripts(&target, 'K', LVL_BOOT))) {
	if (!serv)
	    continue;
# if defined(MINIMAL_MAKE) && (MINIMAL_MAKE != 0)
	if (serv->attr.ref <= 0)
	    continue;
# endif /* MINIMAL_MAKE */
	fprintf(halt, " %s", target);
    }
    fputc('\n', halt);
#endif /* USE_KILL_IN_BOOT */

    target = (char*)0;
    while ((serv = listscripts(&target, 'K', (LVL_NORM|LVL_BOOT)))) {
	boolean mark;
	list_t * pos;

	if (!serv)
	    continue;
#if defined(MINIMAL_RULES) && (MINIMAL_RULES != 0)
	if (serv->attr.ref <= 0)
	    continue;
#endif /* not MINIMAL_RULES */

	if (list_empty(&serv->sort.rev))
	    continue;

	if (serv->stopp->lvl & LVL_BOOT)
#ifdef USE_KILL_IN_BOOT
	    out = halt;
	else
#else  /* not USE_KILL_IN_BOOT */
	    continue;
#endif /* not USE_KILL_IN_BOOT */
	out = stop;

	mark = false;
	np_list_for_each(pos, &serv->sort.rev) {
	    req_t * rev = getreq(pos);
	    service_t * dep = rev->serv;
	    const char * name;

	    if (!dep)
		continue;

	    if (dep->attr.flags & (SERV_DUPLET|SERV_NOSTOP))
		continue;			/* Duplet or no stop link */

#if defined(MINIMAL_RULES) && (MINIMAL_RULES != 0)
	    if (dep->attr.ref <= 0)
		continue;
#endif /* not MINIMAL_RULES */

	    if ((serv->stopp->lvl & dep->stopp->lvl) == 0)
		continue;

	    if ((name = dep->attr.script) == (char*)0)
		continue;

	    if (!mark) {
		fprintf(out, "%s:", target);
		mark = true;
	    }
	    fprintf(out, " %s", name);
	}
	if (mark) fputc('\n', out);
    }

#ifdef USE_KILL_IN_BOOT
    fclose(halt);
#endif /* USE_KILL_IN_BOOT */
    fclose(stop);
}

/*
 * Internal logger
 */
char *myname = (char*)0;
static void _logger (const char *restrict const fmt, va_list ap);
static void _logger (const char *restrict const fmt, va_list ap)
{
    extension char buf[strlen(myname)+2+strlen(fmt)+1];
    strcat(strcat(strcpy(buf, myname), ": "), fmt);
    vfprintf(stderr, buf, ap);
    return;
}

/*
 * Cry and exit.
 */
void error (const char *restrict const fmt, ...)
{
    static char called;
    va_list ap;
    if (called++)
	exit (1);
    va_start(ap, fmt);
    _logger(fmt, ap);
    va_end(ap);
    popd();
    exit (1);
}

/*
 * Warn the user.
 */
void warn (const char *restrict const fmt, ...)
{
    va_list ap;
    va_start(ap, fmt);
    _logger(fmt, ap);
    va_end(ap);
    return;
}

/*
 * Print message when verbose is enabled
 */
void info(int level, const char *fmt, ...) {
    va_list ap;
    if (level > verbose)
	goto out;
    va_start(ap, fmt);
    _logger(fmt, ap);
    va_end(ap);
out:
    return;
}

/*
 *  Check for script in list.
 */
static int curr_argc = -1;
static inline boolean chkfor(const char *restrict const script,
			     char **restrict const list, const int cnt) attribute((nonnull(1,2)));
static inline boolean chkfor(const char *restrict const script, char **restrict const list, const int cnt)
{
    boolean isinc = false;
    register int c = cnt;

    curr_argc = -1;
    while (c--) {
	if (*script != *list[c])
	    continue;
	if (!strcmp(script, list[c])) {
	    isinc = true;
	    curr_argc = c;
	    break;
	}
    }
    return isinc;
}

/*
 * Open a runlevel directory, if it not
 * exists than create one.
 */
static DIR * openrcdir(const char *restrict const rcpath) attribute((nonnull(1)));
static DIR * openrcdir(const char *restrict const rcpath)
{
   DIR * rcdir;
   struct stat st;
   int dfd;

    if (stat(rcpath, &st) < 0) {
	if (errno == ENOENT) {
	    info(1, "creating directory '%s'\n", rcpath);
	    if (!dryrun)
		mkdir(rcpath, (S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH));
	} else
	    error("can not stat(%s): %s\n", rcpath, strerror(errno));
    }

    if ((rcdir = opendir(rcpath)) == (DIR*)0) {
	if (dryrun)
	    warn ("can not opendir(%s): %s\n", rcpath, strerror(errno));
	else
	    error("can not opendir(%s): %s\n", rcpath, strerror(errno));
    }
#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
    else if ((dfd = dirfd(rcdir)) != 0) {
	(void)posix_fadvise(dfd, 0, 0, POSIX_FADV_WILLNEED);
	(void)posix_fadvise(dfd, 0, 0, POSIX_FADV_SEQUENTIAL);
    }
#endif
    return rcdir;
}

/*
 * Wrapper for regcomp(3)
 */
static inline void regcompiler(regex_t *restrict preg,
			       const char *restrict regex,
			       int cflags) attribute((always_inline,nonnull(1,2)));
static inline void regcompiler(regex_t *restrict preg, const char *restrict regex, int cflags)
{
    register int ret = regcomp(preg, regex, cflags);
    if (ret) {
	regerror(ret, preg, buf, sizeof (buf));
	regfree (preg);
	error("%s\n", buf);
    }
    return;
}

/*
 * Wrapper for regexec(3)
 */
static inline boolean regexecutor(regex_t *restrict preg,
				  const char *restrict string,
				  size_t nmatch, regmatch_t pmatch[], int eflags) attribute((nonnull(1,2)));
static inline boolean regexecutor(regex_t *preg, const char *string,
	size_t nmatch, regmatch_t pmatch[], int eflags)
{
    register int ret = regexec(preg, string, nmatch, pmatch, eflags);
    if (ret > REG_NOMATCH) {
	regerror(ret, preg, buf, sizeof (buf));
	regfree (preg);
	warn("%s\n", buf);
    }
    return (ret ? false : true);
}

/*
 * The script scanning engine.
 * We have to alloc the regular expressions first before
 * calling scan_script_defaults().  After the last call
 * of scan_script_defaults() we may free the expressions.
 */
static inline void scan_script_regalloc(void) attribute((always_inline));
static inline void scan_script_regalloc(void)
{
    regcompiler(&reg.prov,      PROVIDES,       REG_EXTENDED|REG_ICASE);
    regcompiler(&reg.req_start, REQUIRED_START, REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.req_stop,  REQUIRED_STOP,  REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.shl_start, SHOULD_START,   REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.shl_stop,  SHOULD_STOP,    REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.start_bf,  START_BEFORE,   REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.stop_af,   STOP_AFTER,     REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.def_start, DEFAULT_START,  REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.def_stop,  DEFAULT_STOP,   REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.desc,      DESCRIPTION,    REG_EXTENDED|REG_ICASE|REG_NEWLINE);
    regcompiler(&reg.interact,  INTERACTIVE,    REG_EXTENDED|REG_ICASE|REG_NEWLINE);
}

static inline void scan_script_reset(void) attribute((always_inline));
static inline void scan_script_reset(void)
{
    xreset(script_inf.provides);
    xreset(script_inf.required_start);
    xreset(script_inf.required_stop);
    xreset(script_inf.should_start);
    xreset(script_inf.should_stop);
    xreset(script_inf.start_before);
    xreset(script_inf.stop_after);
    xreset(script_inf.default_start);
    xreset(script_inf.default_stop);
    xreset(script_inf.description);
    xreset(script_inf.interactive);
}

/*
 * return name of upstart job if the script is a symlink to
 * /lib/init/upstart-job, or NULL if path do not point to an
 * upstart job.
 */
static char *is_upstart_job(const char *path)
{
    uint deep = 0;
    char buf[PATH_MAX+1];
    char *script = xstrdup(path);
    char *retval = basename(path);	/* GNU basename */

    buf[PATH_MAX] = '\0';

    do {
	struct stat statbuf;
	int len;

	if (deep++ > MAXSYMLINKS) {
	    errno = ELOOP;
	    warn("Can not determine upstart job name for %s: %s\n", path, strerror(errno));
	    break;
	}

	if (lstat(script, &statbuf) < 0) {
	    warn("Can not stat %s: %s\n", path, strerror(errno));
	    break;
	}

	if (!S_ISLNK(statbuf.st_mode))
	    break;

	if ((len = readlink(script, buf, sizeof(buf)-1)) < 0)
	    break;
	buf[len] = '\0';

	if (buf[0] != '/') {		/* restore relative links */
	    const char *lastslash;

	    if ((lastslash = strrchr(script, '/'))) {
		size_t dirlen = lastslash - script + 1;

		if (dirlen + len > PATH_MAX)
		    len = PATH_MAX - dirlen;

		memmove(&buf[dirlen], &buf[0], len + 1);
		memcpy(&buf[0], script, dirlen);
	    }
	}

	free(script);

	if (strcmp(buf, upstartjob_path) == 0) {
	    info(2, "script '%s' is upstart job\n", retval);
	    return strdup(retval);
	}

	script = xstrdup(buf);

    } while (1);

    free(script);

    return (char*)0;
}

#define FOUND_LSB_HEADER   0x01
#define FOUND_LSB_DEFAULT  0x02
#define FOUND_LSB_OVERRIDE 0x04
#define FOUND_LSB_UPSTART  0x08

static int o_flags = O_RDONLY;

static uchar scan_lsb_headers(const int dfd, const char *restrict const path,
			      const boolean cache, const boolean ignore) attribute((nonnull(2)));
static uchar scan_lsb_headers(const int dfd, const char *restrict const path,
			      const boolean cache, const boolean ignore)
{
    regmatch_t subloc[SUBNUM_SHD+1], *val = &subloc[SUBNUM-1], *shl = &subloc[SUBNUM_SHD-1];
    char *upstart_job = (char*)0;
    char *begin = (char*)0, *end = (char*)0;
    char *pbuf = buf;
    FILE *script;
    uchar ret = 0;
    int fd = -1;

#define provides	script_inf.provides
#define required_start	script_inf.required_start
#define required_stop	script_inf.required_stop
#define should_start	script_inf.should_start
#define should_stop	script_inf.should_stop
#define start_before	script_inf.start_before
#define stop_after	script_inf.stop_after
#define default_start	script_inf.default_start
#define default_stop	script_inf.default_stop
#define description	script_inf.description
#define interactive	script_inf.interactive

    info(2, "Loading %s\n", path);

    if (NULL != (upstart_job = is_upstart_job(path))) {
	char cmd[PATH_MAX];
	int len;
	len = snprintf(cmd, sizeof(cmd), "%s %s lsb-header", upstartjob_path, upstart_job);
	if (len < 0 || sizeof(cmd) == len)
	    error("snprintf: insufficient buffer for %s\n", path);
	if ((script = popen(cmd, "r")) == (FILE*)0)
	    error("popen(%s): %s\n", path, strerror(errno));
	ret |= FOUND_LSB_UPSTART;
    } else {
	if ((fd = xopen(dfd, path, o_flags)) < 0 || (script = fdopen(fd, "r")) == (FILE*)0)
	    error("fopen(%s): %s\n", path, strerror(errno));

#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
	(void)posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
#endif
    }

#define COMMON_ARGS	buf, SUBNUM, subloc, 0
#define COMMON_SHD_ARGS	buf, SUBNUM_SHD, subloc, 0
    while (fgets(buf, sizeof(buf), script)) {

	/* Skip scanning above from LSB magic start */
	if (!begin) {
	    if ( (begin = strstr(buf, "### BEGIN INIT INFO")) ) {
	        /* Let the latest LSB header override the one found earlier */
	        scan_script_reset();
	    }
	    continue;
	}

	if (!provides       && regexecutor(&reg.prov,      COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
	        provides = xstrdup(pbuf+val->rm_so);
	    } else
		provides = empty;
	}
	if (!required_start && regexecutor(&reg.req_start, COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		required_start = xstrdup(pbuf+val->rm_so);
	    } else
		required_start = empty;
	}
	if (!required_stop  && regexecutor(&reg.req_stop,  COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		required_stop = xstrdup(pbuf+val->rm_so);
	    } else
		required_stop = empty;
	}
	if (!should_start && regexecutor(&reg.shl_start,   COMMON_SHD_ARGS) == true) {
	    if (shl->rm_so < shl->rm_eo) {
		*(pbuf+shl->rm_eo) = '\0';
		should_start = xstrdup(pbuf+shl->rm_so);
	    } else
		should_start = empty;
	}
	if (!should_stop  && regexecutor(&reg.shl_stop,    COMMON_SHD_ARGS) == true) {
	    if (shl->rm_so < shl->rm_eo) {
		*(pbuf+shl->rm_eo) = '\0';
		should_stop = xstrdup(pbuf+shl->rm_so);
	    } else
		should_stop = empty;
	}
	if (!start_before && regexecutor(&reg.start_bf,    COMMON_SHD_ARGS) == true) {
	    if (shl->rm_so < shl->rm_eo) {
		*(pbuf+shl->rm_eo) = '\0';
		start_before = xstrdup(pbuf+shl->rm_so);
	    } else
		start_before = empty;
	}
	if (!stop_after  && regexecutor(&reg.stop_af,      COMMON_SHD_ARGS) == true) {
	    if (shl->rm_so < shl->rm_eo) {
		*(pbuf+shl->rm_eo) = '\0';
		stop_after = xstrdup(pbuf+shl->rm_so);
	    } else
		stop_after = empty;
	}
	if (!default_start  && regexecutor(&reg.def_start, COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		default_start = xstrdup(pbuf+val->rm_so);
	    } else
		default_start = empty;
	}
#ifndef SUSE
	if (!default_stop   && regexecutor(&reg.def_stop,  COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		default_stop = xstrdup(pbuf+val->rm_so);
	    } else
		default_stop = empty;
	}
#endif
	if (!description    && regexecutor(&reg.desc,      COMMON_ARGS) == true) {
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		description = xstrdup(pbuf+val->rm_so);
	    } else
		description = empty;
	}

	if (!interactive    && regexecutor(&reg.interact,  COMMON_SHD_ARGS) == true) {
	    if (shl->rm_so < shl->rm_eo) {
		*(pbuf+shl->rm_eo) = '\0';
		interactive = xstrdup(pbuf+shl->rm_so);
	    } else
		interactive = empty;
	}

	/* Skip scanning below from LSB magic end */
	if ((end = strstr(buf, "### END INIT INFO")))
	    break;
    }
#undef COMMON_ARGS
#undef COMMON_SHD_ARGS

    if (upstart_job) {
	pclose(script);
	free(upstart_job);
	upstart_job = 0;
    } else {
#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
	if (cache) {
	    off_t deep = ftello(script);
	    (void)posix_fadvise(fd, 0, deep, POSIX_FADV_WILLNEED);
	    (void)posix_fadvise(fd, deep, 0, POSIX_FADV_DONTNEED);
	} else
	    (void)posix_fadvise(fd, 0, 0, POSIX_FADV_NOREUSE);
#endif
	fclose(script);
    }

    if (begin && end)
	ret |= FOUND_LSB_HEADER;

    if (begin && !end) {
	char *name = basename(path);
	if (*name == 'S' || *name == 'K')
	    name += 3;
	warn("Script %s is broken: missing end of LSB comment.\n", name);
	if (!ignore)
	    error("exiting now!\n");
    }

    if (begin && end && (!provides || (provides == empty) ||
#ifdef SUSE
			 !required_start || !required_stop || !default_start
#else  /* not SUSE */
			 !required_start || !required_stop || !default_start || !default_stop
#endif /* not SUSE */
	))
    {
	char *name = basename(path);
	if (*name == 'S' || *name == 'K')
	    name += 3;
	warn("Script %s is broken: incomplete LSB comment.\n", name);
	if (!provides)
	    warn("missing `Provides:' entry: please add.\n");
	if (provides == empty)
	    warn("missing valid name for `Provides:' please add.\n");
	if (!required_start)
	    warn("missing `Required-Start:' entry: please add even if empty.\n");
	if (!required_stop)
	    warn("missing `Required-Stop:'  entry: please add even if empty.\n");
	if (!default_start)
	    warn("missing `Default-Start:'  entry: please add even if empty.\n");
#ifndef SUSE
	if (!default_stop)
	    warn("missing `Default-Stop:'   entry: please add even if empty.\n");
#endif
    }

#undef provides
#undef required_start
#undef required_stop
#undef should_start
#undef should_stop
#undef start_before
#undef stop_after
#undef default_start
#undef default_stop
#undef description
#undef interactive
    return ret;
}

/*
 * Follow symlinks, return the basename of the file pointed to by
 * symlinks or the basename of the current path if no symlink.
 */
static char * scriptname(int dfd, const char *restrict const path, char **restrict first) attribute((malloc,nonnull(2)));
static char * scriptname(int dfd, const char *restrict const path, char **restrict first)
{
    uint deep = 0;
    char linkbuf[PATH_MAX+1];
    char *script = xstrdup(path);

    strncpy(linkbuf, script, sizeof(linkbuf)-1);
    linkbuf[PATH_MAX] = '\0';

    do {
        struct stat st;
	int linklen;

	if (deep++ > MAXSYMLINKS) {
	    errno = ELOOP;
	    warn("Can not determine script name for %s: %s\n", path, strerror(errno));
	    break;
	}

	if (xlstat(dfd, script, &st) < 0) {
	    warn("Can not stat %s: %s\n", script, strerror(errno));
	    break;
	}

	if (!S_ISLNK(st.st_mode))
	    break;

	if ((linklen = xreadlink(dfd, script, linkbuf, sizeof(linkbuf)-1)) < 0)
	    break;
	linkbuf[linklen] = '\0';

	if (linkbuf[0] != '/') {	/* restore relative links */
	    const char *lastslash;

	    if ((lastslash = strrchr(script, '/'))) {
		size_t dirname_len = lastslash - script + 1;

		if (dirname_len + linklen > PATH_MAX)
		    linklen = PATH_MAX - dirname_len;

		memmove(&linkbuf[dirname_len], &linkbuf[0], linklen + 1);
		memcpy(&linkbuf[0], script, dirname_len);
	    }
	}

	free(script);
	script = xstrdup(linkbuf);

	if (deep == 1 && first)
	    *first = xstrdup(basename(linkbuf));

    } while (1);

    free(script);
    script = xstrdup(basename(linkbuf));

    return script;
}

static uchar load_overrides(const char *restrict const dir,
			    const char *restrict const name,
			    const boolean cache, const boolean ignore) attribute((nonnull(1,2)));
static uchar load_overrides(const char *restrict const dir,
			    const char *restrict const name,
			    const boolean cache, const boolean ignore)
{
    uchar ret = 0;
    char fullpath[PATH_MAX+1];
    struct stat statbuf;
    int n;

    n = snprintf(&fullpath[0], sizeof(fullpath), "%s%s/%s", (root && !set_override) ? root : "", dir, name);
    if (n >= (int)sizeof(fullpath) || n < 0)
	error("snprintf(): %s\n", strerror(errno));

    if (stat(fullpath, &statbuf) == 0 && S_ISREG(statbuf.st_mode))
        ret = scan_lsb_headers(-1, fullpath, cache, ignore);
    if (ret & FOUND_LSB_HEADER)
	ret |= FOUND_LSB_OVERRIDE;
    return ret;
}

static uchar scan_script_defaults(int dfd, const char *const restrict path,
				  const char *const restrict override_path,
				  char **restrict first,
				  const boolean cache, const boolean ignore) attribute((nonnull(2,3)));
static uchar scan_script_defaults(int dfd, const char *restrict const path,
				  const char *restrict const override_path,
				  char **restrict first,
				  const boolean cache, const boolean ignore)
{
    char * name = scriptname(dfd, path, first);
    uchar ret = 0;

    if (!name)
	return ret;

    /* Reset old results */
    scan_script_reset();

#ifdef SUSE
    /* Common script ... */
    if (!strcmp(name, "halt")) {
	ret |= (FOUND_LSB_HEADER|FOUND_LSB_DEFAULT);
	goto out;
    }

    /* ... and its link */
    if (!strcmp(name, "reboot")) {
	ret |= (FOUND_LSB_HEADER|FOUND_LSB_DEFAULT);
	goto out;
    }

    /* Common script for single mode */
    if (!strcmp(name, "single")) {
	ret |= (FOUND_LSB_HEADER|FOUND_LSB_DEFAULT);
	goto out;
    }
#endif /* SUSE */

    /* Replace with headers from the script itself */
    ret |= scan_lsb_headers(dfd, path, cache, ignore);

    /* Do not override the upstarts defaults, if we allow this
     * we have to change name to the link name otherwise the
     * name is always "upstart-job" */
    if (ret & FOUND_LSB_UPSTART)
	goto out;

    /* Load values if the override file exist */
    if ((ret & FOUND_LSB_HEADER) == 0)
	ret |= load_overrides("/usr/share/insserv/overrides", name, cache, ignore);
    else
	ret |= FOUND_LSB_DEFAULT;

    /*
     * Allow host-specific overrides to replace the content in the
     * init.d scripts
     */
    ret |= load_overrides(override_path, name, cache, ignore);
out:
    free(name);
    return ret;
}

static inline void scan_script_regfree() attribute((always_inline));
static inline void scan_script_regfree()
{
    regfree(&reg.prov);
    regfree(&reg.req_start);
    regfree(&reg.req_stop);
    regfree(&reg.shl_start);
    regfree(&reg.shl_stop);
    regfree(&reg.start_bf);
    regfree(&reg.stop_af);
    regfree(&reg.def_start);
    regfree(&reg.def_stop);
    regfree(&reg.desc);
    regfree(&reg.interact);
}

static struct {
    char *location;
    const ushort lvl;
    const ushort seek;
    const char key;
} attribute((aligned(sizeof(char*)))) runlevel_locations[] = {
#ifdef SUSE	/* SuSE's SystemV link scheme */
    {"rc0.d/",    LVL_HALT,   LVL_NORM, '0'},
    {"rc1.d/",    LVL_ONE,    LVL_NORM, '1'}, /* runlevel 1 switch over to single user mode */
    {"rc2.d/",    LVL_TWO,    LVL_NORM, '2'},
    {"rc3.d/",    LVL_THREE,  LVL_NORM, '3'},
    {"rc4.d/",    LVL_FOUR,   LVL_NORM, '4'},
    {"rc5.d/",    LVL_FIVE,   LVL_NORM, '5'},
    {"rc6.d/",    LVL_REBOOT, LVL_NORM, '6'},
    {"rcS.d/",    LVL_SINGLE, LVL_NORM, 'S'}, /* runlevel S is for single user mode */
    {"boot.d/",   LVL_BOOT,   LVL_BOOT, 'B'}, /* runlevel B is for system initialization */
#else		/* not SUSE (actually, Debian) */
    {"../rc0.d/", LVL_HALT,   LVL_NORM, '0'},
    {"../rc1.d/", LVL_ONE,    LVL_NORM, '1'}, /* runlevel 1 switch over to single user mode */
    {"../rc2.d/", LVL_TWO,    LVL_NORM, '2'},
    {"../rc3.d/", LVL_THREE,  LVL_NORM, '3'},
    {"../rc4.d/", LVL_FOUR,   LVL_NORM, '4'},
    {"../rc5.d/", LVL_FIVE,   LVL_NORM, '5'},
    {"../rc6.d/", LVL_REBOOT, LVL_NORM, '6'},
    {"../rcS.d/", LVL_BOOT,   LVL_BOOT, 'S'}, /* runlevel S is for system initialization */
		/* On e.g. Debian there exist no boot.d */
#endif		/* not SUSE */
};

#define RUNLEVLES (int)(sizeof(runlevel_locations)/sizeof(runlevel_locations[0]))

int map_has_runlevels(void)
{
    return RUNLEVLES;
}

char map_runlevel_to_key(const int runlevel)
{
    if (runlevel >= RUNLEVLES) {
	warn("Wrong runlevel %d\n", runlevel);
    }
    return runlevel_locations[runlevel].key;
}

ushort map_key_to_lvl(const char key)
{
    int runlevel;
    const char uckey = toupper(key);
    for (runlevel = 0; runlevel < RUNLEVLES; runlevel++) {
	if (uckey == runlevel_locations[runlevel].key)
	    return runlevel_locations[runlevel].lvl;
    }
    warn("Wrong runlevel key '%c'\n", uckey);
    return 0;
}

const char *map_runlevel_to_location(const int runlevel)
{
    if (runlevel >= RUNLEVLES) {
	warn("Wrong runlevel %d\n", runlevel);
    }
    return runlevel_locations[runlevel].location;
}

ushort map_runlevel_to_lvl(const int runlevel)
{
    if (runlevel >= RUNLEVLES) {
	warn("Wrong runlevel %d\n", runlevel);
    }
    return runlevel_locations[runlevel].lvl;
}

ushort map_runlevel_to_seek(const int runlevel)
{
    return runlevel_locations[runlevel].seek;
}

/*
 * Two helpers for runlevel bits and strings.
 */
ushort str2lvl(const char *restrict lvl)
{
    char * token, *tmp = strdupa(lvl);
    ushort ret = 0;

    if (!tmp)
	error("%s", strerror(errno));

    while ((token = strsep(&tmp, delimeter))) {
	if (!*token || strlen(token) != 1)
	    continue;
	if (!strpbrk(token, "0123456sSbB"))
	    continue;

        ret |= map_key_to_lvl(*token);
    }

    return ret;
}

char * lvl2str(const ushort lvl)
{
    char * ptr, * last;
    char str[20];
    int num;
    uint bit = 0x001;

    last = ptr = &str[0];
    memset(ptr, '\0', sizeof(str));
    for (num = 0; num < RUNLEVLES; num++) {
	if (bit & lvl) {
	    if (ptr > last)
		*ptr++ = ' ';
	    last = ptr;
	    if (LVL_NORM & bit)
		*ptr++ = num + 48;
#ifdef SUSE
	    else if (LVL_SINGLE & bit)
		*ptr++ = 'S';
	    else if (LVL_BOOT & bit)
		*ptr++ = 'B';
#else  /* not SUSE */
	    else if (LVL_BOOT & bit)
		*ptr++ = 'S';
#endif /* not SUSE */
	    else
		error("Wrong runlevel %d\n", num);
	}
	bit <<= 1;
    }
    if (strlen(str) == 0)
	return (char*)0;
    return xstrdup(str);
}

/*
 * Scan current service structure
 */
static void scan_script_locations(const char *const restrict path,
				  const char *const restrict override_path,
				  const boolean ignore) attribute((nonnull(1,2)));
static void scan_script_locations(const char *const path, const char *const override_path,
				  const boolean ignore)
{
    int runlevel;

    pushd(path);
    for (runlevel = 0; runlevel < RUNLEVLES; runlevel++) {
	const char * rcd = (char*)0;
	struct stat st_script;
	struct dirent *d;
	DIR  * rcdir;
	char * token;
	int dfd;

	rcd = map_runlevel_to_location(runlevel);

	rcdir = openrcdir(rcd);		/* Creates runlevel directory if necessary */
	if (rcdir == (DIR*)0)
	    break;
	if ((dfd = dirfd(rcdir)) < 0) {
	    closedir(rcdir);
	    break;
	}
	pushd(rcd);

	while ((d = readdir(rcdir)) != (struct dirent*)0) {
	    char * name = (char *)0;
	    char * ptr = d->d_name;
	    service_t * first;
	    char * begin;		/* Remember address of ptr handled by strsep() */
	    char order;
	    uchar lsb;
	    char type;

	    if (*ptr != 'S' && *ptr != 'K')
		continue;
	    type = *ptr;
	    ptr++;

	    if (strspn(ptr, "0123456789") < 2)
		continue;
	    order = atoi(ptr);
	    ptr += 2;

	    if (xstat(dfd, d->d_name, &st_script) < 0) {
		xremove(dfd, d->d_name);	/* dangling sym link */
		continue;
	    }

	    lsb = scan_script_defaults(dfd, d->d_name, override_path, &name, true, ignore);
	    if (!name) {
		warn("warning: script is corrupt or invalid: %s/%s%s\n", path, rcd, d->d_name);
		continue;
	    }

	    if (!script_inf.provides || script_inf.provides == empty)
		script_inf.provides = xstrdup(ptr);

#ifndef SUSE
	    if (!lsb) {
	        script_inf.required_start = xstrdup(DEFAULT_DEPENDENCY);
		script_inf.required_stop  = xstrdup(DEFAULT_DEPENDENCY);
	    }
#endif /* not SUSE */

	    first = (service_t*)0;
	    begin = script_inf.provides;
	    while ((token = strsep(&begin, delimeter)) && *token) {
		service_t * service;

		if (*token == '$') {
		    warn("script %s provides system facility %s, skipped!\n", d->d_name, token);
		    continue;
		}
		if (*token == '#') {
		    warn("script %s provides facility %s with comment sign, skipped!\n", d->d_name, token);
		    continue;
		}

		service = current_structure(token, order, runlevel, type);

		if (first)
		    nickservice(first, service);
		else
		    first = service;

		if (!makeprov(service, name))
		    continue;

		++service->attr.ref;			/* May enabled in several levels */

		if (service->attr.flags & SERV_KNOWN)
		    continue;
		service->attr.flags |= (SERV_KNOWN|SERV_ENABLED);

		if (!lsb)
		    service->attr.flags |= SERV_NOTLSB;

		if ((lsb & FOUND_LSB_HEADER) == 0) {
		    if ((lsb & (FOUND_LSB_DEFAULT|FOUND_LSB_OVERRIDE)) == 0)
		      warn("warning: script '%s' missing LSB tags and overrides\n", d->d_name);
		    else
  		        warn("warning: script '%s' missing LSB tags\n", d->d_name);
		}

		if (script_inf.required_start && script_inf.required_start != empty) {
		    rememberreq(service, REQ_MUST, script_inf.required_start);
#ifdef USE_COMPAT_EMPTY
		    if (!script_inf.required_stop || script_inf.required_stop == empty)
			script_inf.required_stop = xstrdup(script_inf.required_start);
#endif /* USE_COMPAT_EMPTY */
		}
		if (script_inf.should_start && script_inf.should_start != empty) {
		    rememberreq(service, REQ_SHLD, script_inf.should_start);
#ifdef USE_COMPAT_EMPTY
		    if (!script_inf.should_stop || script_inf.should_stop == empty)
			script_inf.should_stop = xstrdup(script_inf.should_start);
#endif /* USE_COMPAT_EMPTY */
		}
		if (script_inf.start_before && script_inf.start_before != empty) {
		    reversereq(service, REQ_SHLD, script_inf.start_before);
#ifdef USE_COMPAT_EMPTY
		    if (!script_inf.stop_after || script_inf.stop_after == empty)
			script_inf.stop_after = xstrdup(script_inf.start_before);
#endif /* USE_COMPAT_EMPTY */
		}
		if (script_inf.required_stop && script_inf.required_stop != empty) {
		    rememberreq(service, REQ_MUST|REQ_KILL, script_inf.required_stop);
		}
		if (script_inf.should_stop && script_inf.should_stop != empty) {
		    rememberreq(service, REQ_SHLD|REQ_KILL, script_inf.should_stop);
		}
		if (script_inf.stop_after && script_inf.stop_after != empty) {
		    reversereq(service, REQ_SHLD|REQ_KILL, script_inf.stop_after);
		}
		if (script_inf.interactive && 0 == strcmp(script_inf.interactive, "true")) {
		    service->attr.flags |= SERV_INTRACT;
		}
	    }

	    if (name) 
		xreset(name);

	    scan_script_reset();

	}	/* while ((token = strsep(&begin, delimeter)) && *token) */

	popd();
	closedir(rcdir);
    }
    popd();
    return;
}

/*
 * The /etc/insserv.conf scanning engine.
 */
static void scan_conf_file(const char *restrict file) attribute((nonnull(1)));
static void scan_conf_file(const char *restrict file)
{
    regmatch_t subloc[SUBCONFNUM], *val = (regmatch_t*)0;
    FILE *conf;

    info(2, "Loading %s\n", file);

    do {
	const char * fptr = file;
	if (*fptr == '/')
	    fptr++;
	/* Try relativ location first */
	if ((conf = fopen(fptr, "r")))
	    break;
	/* Try absolute location */
	if ((conf = fopen(file, "r")))
	    break;
	goto err;
    } while (1);

    while (fgets(buf, sizeof(buf), conf)) {
	char *pbuf = &buf[0];
	if (*pbuf == '#')
	    continue;
	if (*pbuf == '\n')
	    continue;
	if (regexecutor(&creg.isysfaci, buf, SUBCONFNUM, subloc, 0) == true) {
	    char * virt = (char*)0, * real = (char*)0;
	    val = &subloc[SUBCONF - 1];
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		virt = pbuf+val->rm_so;
	    }
	    val = &subloc[SUBCONFNUM - 1];
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		real = pbuf+val->rm_so;
	    }
	    if (virt) {
		list_t * ptr;
		boolean found = false;
		list_for_each(ptr, sysfaci_start) {
		    if (!strcmp(getfaci(ptr)->name, virt)) {
			found = true;
			if(real) {
			    list_t * r_list = &getfaci(ptr)->replace;
			    char * token;
			    while ((token = strsep(&real, delimeter))) {
				repl_t *restrict subst;
				string_t * r;
				if (posix_memalign((void*)&subst, sizeof(void*), alignof(repl_t)) != 0)
				    error("%s", strerror(errno));
				insert(&subst->r_list, r_list->prev);
				subst->flags = 0;
				r = &subst->r[0];
				if (posix_memalign((void*)&r->ref, sizeof(void*), alignof(typeof(r->ref))+strsize(token)) != 0)
				    error("%s", strerror(errno));
				*r->ref = 1;
				r->name = ((char*)(r->ref))+alignof(typeof(r->ref));
				strcpy(r->name, token);
			    }
			}
			break;
		    }
		}
		if (!found) {
		    faci_t *restrict this;
		    if (posix_memalign((void*)&this, sizeof(void*), alignof(faci_t)) != 0)
			error("%s", strerror(errno));
		    else {
			list_t * r_list = &this->replace;
			char * token;
			r_list->next = r_list;
			r_list->prev = r_list;
			insert(&this->list, sysfaci_start->prev);
			this->name = xstrdup(virt);
			while ((token = strsep(&real, delimeter))) {
			    repl_t *restrict subst;
			    string_t * r;
			    if (posix_memalign((void*)&subst, sizeof(void*), alignof(repl_t)) != 0)
				error("%s", strerror(errno));
			    insert(&subst->r_list, r_list->prev);
			    subst->flags = 0;
			    r = &subst->r[0];
			    if (posix_memalign((void*)&r->ref, sizeof(void*), alignof(typeof(r->ref))+strsize(token)) != 0)
				error("%s", strerror(errno));
			    *r->ref = 1;
			    r->name = ((char*)(r->ref))+alignof(typeof(r->ref));
			    strcpy(r->name, token);
			}
		    }
		}
	    }
	}
	if (regexecutor(&creg.isactive, buf, SUBCONFNUM, subloc, 0) == true) {
	    char * key = (char*)0, * servs = (char*)0;
	    val = &subloc[SUBCONF - 1];
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		key = pbuf+val->rm_so;
	    }
	    val = &subloc[SUBCONFNUM - 1];
	    if (val->rm_so < val->rm_eo) {
		*(pbuf+val->rm_eo) = '\0';
		servs = pbuf+val->rm_so;
	    }
	    if (key && *key == '<' && servs && *servs) {
		if (!strncmp("<interactive>", key, strlen(key))) {
		    char * token;
		    while ((token = strsep(&servs, delimeter))) {
			service_t *service = addservice(token);
			service = getorig(service);
			service->attr.flags |= SERV_INTRACT;
		    }
		}
	    }
	}
    }

    fclose(conf);
    return;
err:
    warn("fopen(%s): %s\n", file, strerror(errno));
}

static int cfgfile_filter(const struct dirent *restrict d) attribute((nonnull(1)));
static int cfgfile_filter(const struct dirent *restrict d)
{
    boolean ret = false;
    const char * name = d->d_name;
    const char * end;

    if (*name == '.')
	goto out;
    if (!name || (*name == '\0'))
	goto out;
    if ((end = strrchr(name, '.'))) {
	end++;
	if (!strncmp(end, "rpm", 3)	|| /* .rpmorig, .rpmnew, .rmpsave, ... */
	    !strncmp(end, "ba", 2)	|| /* .bak, .backup, ... */
#ifdef SUSE
	    !strcmp(end,  "local")	|| /* .local are sourced by the basename */
#endif /* not SUSE */
	    !strcmp(end,  "old")	||
	    !strcmp(end,  "new")	||
	    !strcmp(end,  "org")	||
	    !strcmp(end,  "orig")	||
	    !strncmp(end, "dpkg", 3)	|| /* .dpkg-old, .dpkg-new ... */
	    !strcmp(end,  "save")	||
	    !strcmp(end,  "swp")	|| /* Used by vi like editors */
	    !strcmp(end,  "core"))	   /* modern core dump */
	{
	    goto out;
	}
    }
    if ((end = strrchr(name, ','))) {
	end++;
	if (!strcmp(end,  "v"))		  /* rcs-files */
	    goto out;
    }
    ret = true;
out:
    return (int)ret;
}

static void scan_conf(const char *restrict file) attribute((nonnull(1)));
static void scan_conf(const char *restrict file)
{
    struct dirent** namelist = (struct dirent**)0;
    char path[PATH_MAX+1];
    int n;

    regcompiler(&creg.isysfaci,  CONFLINE, REG_EXTENDED|REG_ICASE);
    regcompiler(&creg.isactive, CONFLINE2, REG_EXTENDED|REG_ICASE);

    n = snprintf(&path[0], sizeof(path), "%s%s",   (root && !set_insconf) ? root : "", file);
    if (n >= (int)sizeof(path) || n < 0)
	error("snprintf(): %s\n", strerror(errno));

    scan_conf_file(path);

    n = snprintf(&path[0], sizeof(path), "%s%s.d", (root && !set_insconf) ? root : "", file);
    if (n >= (int)sizeof(path) || n < 0)
	error("snprintf(): %s\n", strerror(errno));

    n = scandir(path, &namelist, cfgfile_filter, alphasort);
    if(n > 0) {
	while(n--) {
	    struct stat st;
	    char buf[PATH_MAX+1];
	    int r;

	    r = snprintf(&buf[0], sizeof(buf), "%s/%s", path, namelist[n]->d_name);
	    if (r >= (int)sizeof(buf) || r < 0)
		error("snprintf(): %s\n", strerror(errno));

	    if ((stat(buf, &st) < 0) || !S_ISREG(st.st_mode))
	        continue;

	    scan_conf_file(buf);

	    free(namelist[n]);
	}
    }

    if (namelist)
	free(namelist);

    regfree(&creg.isysfaci);
    regfree(&creg.isactive);
}

static void expand_faci(list_t *restrict rlist, list_t *restrict head,
			int *restrict deep) attribute((noinline,nonnull(1,2,3)));
static void expand_faci(list_t *restrict rlist, list_t *restrict head, int *restrict deep)
{
	repl_t * rent = getrepl(rlist);
	list_t * tmp, * safe, * ptr = (list_t*)0;

	list_for_each(tmp, sysfaci_start) {
	    if (!strcmp(getfaci(tmp)->name, rent->r[0].name)) {
		ptr = &getfaci(tmp)->replace;
		break;
	    }
	}

	if (!ptr || list_empty(ptr)) {
	    delete(rlist);
	    if (--(*rent->r[0].ref) <= 0)
		free(rent->r[0].ref);
	    free(rent);
	    goto out;
	}

	list_for_each_safe(tmp, safe, ptr) {
	    repl_t * rnxt = getrepl(tmp);
	    if (rnxt->flags & 0x0001) {
		error("Loop detected during expanding system facilities in the insserv.conf file(s): %s\n",
		      rnxt->r[0].name);
	    }
	    if (*rnxt->r[0].name == '$') {
		if (*deep > 10) {
		    warn("The nested level of the system facilities in the insserv.conf file(s) is to large\n");
		    goto out;
		}
		(*deep)++;
		rnxt->flags |= 0x0001;
		expand_faci(tmp, head, deep);
		rnxt->flags &= ~0x0001;
		(*deep)--;
	    } else if (*deep > 0) {
		repl_t *restrict subst;
		if (posix_memalign((void*)&subst, sizeof(void*), alignof(repl_t)) != 0)
		    error("%s", strerror(errno));
		insert(&subst->r_list, head->prev);
		subst->r[0] = rnxt->r[0];
		(*subst->r[0].ref) = 1;
	    }
	}
out:
	return;
}

static inline void expand_conf(void)
{
    list_t *ptr;
    list_for_each(ptr, sysfaci_start) {
	list_t * rlist, * safe, * head = &getfaci(ptr)->replace;
	list_for_each_safe(rlist, safe, head) {
	    repl_t * tmp = getrepl(rlist);
	    if (*tmp->r[0].name == '$') {
		int deep = 0;
		tmp->flags |= 0x0001;
		expand_faci(rlist, rlist, &deep);
		tmp->flags &= ~0x0001;
	    }
	}
    }
}

/*
 * Scan for a Start or Kill script within a runlevel directory.
 * We start were we leave the directory, the upper level
 * has to call rewinddir(3) if necessary.
 */
static inline char * scan_for(DIR *const restrict rcdir,
			      const char *const restrict script,
			      const char type) attribute((always_inline,nonnull(1,2)));
static inline char * scan_for(DIR *const rcdir,
			      const char *const script, const char type)
{
    struct dirent *d;
    char * ret = (char*)0;

    while ((d = readdir(rcdir)) != (struct dirent*)0) {
	char * ptr = d->d_name;

	if (*ptr != type)
	    continue;
	ptr++;

	if (strspn(ptr, "0123456789") < 2)
	    continue;
	ptr += 2;

	if (!strcmp(ptr, script)) {
	    ret = d->d_name;
	    break;
	}
    }
    return ret;
}

#ifdef SUSE
/*
 * A simple command line checker of the parent process to determine if this is
 * a sub process "/bin/sh" forked off for executing a temporary file for %preun,
 * %postun, %pre, or %post scriptlet.
 */
static inline boolean underrpm(void)
{
    boolean ret = false;
    boolean mnt = true;
    const pid_t pp = getppid();
    char buf[PATH_MAX], *argv[3], *ptr;
# if defined(USE_RPMLIB) && (USE_RPMLIB > 0)
    char *tmppath, *shell;
# endif /* USE_RPMLIB */
    int argc, fd;
    ssize_t len;

    snprintf(buf, sizeof(buf)-1, "/proc/%lu/cmdline", (unsigned long)pp);
    do {
	if ((fd = open(buf, O_NOCTTY|O_RDONLY)) >= 0)
	    break;
	if (!mnt || (errno != ENOENT))
	    goto out;
	if (mount("proc", "/proc", "proc", 0, NULL) < 0)
	    error ("underrpm() can not mount /proc: %s\n", strerror(errno));
	mnt = false;
    } while (1);

    memset(buf, '\0', sizeof(buf));
    if ((len = read(fd , buf, sizeof(buf)-1)) < 0)
	goto out;

    ptr = &buf[0];
    argc = 0;
    do {
	argv[argc++] = ptr;
	if (argc > 2)
	    break;
	if ((len = len - (ssize_t)(ptr - &buf[0])) < 0)
	    break;
    } while ((ptr = memchr(ptr, '\0', len)) && *(++ptr));

    if (argc != 3)
	goto out;

# if defined(USE_RPMLIB) && (USE_RPMLIB > 0)
    rpmReadConfigFiles(NULL, NULL);
    rpmFreeRpmrc();

    if ((shell = rpmExpand("%_buildshell", NULL)) == NULL)
	shell = xstrdup("/bin/sh");

    if (strncmp(argv[0], shell, strlen(shell)) != 0) {
	free(shell);
	goto out;
    }
    free(shell);

    if ((tmppath = rpmExpand("%_tmppath", NULL)) == NULL)
	tmppath = xstrdup("/var/tmp");

    if (strncmp(argv[1], tmppath, strlen(tmppath)) != 0) {
	free(tmppath);
	goto out;
    }

    len = strlen(tmppath);
    free(tmppath);

    ptr = argv[1];
    if (strncmp(ptr + len, "/rpm-tmp.", 9) != 0)
	goto out;
# else  /* not USE_RPMLIB */
    if ((strcmp(argv[0], "/bin/sh") != 0) &&
	(strcmp(argv[0], "/bin/bash") != 0))
	goto out;

    if ((strncmp(argv[1], "/var/tmp/rpm-tmp.", 17) != 0) &&
	(strncmp(argv[1], "/usr/tmp/rpm-tmp.", 17) != 0) &&
	(strncmp(argv[1], "/tmp/rpm-tmp.", 13) != 0))
	goto out;
# endif /* not USE_RPMLIB */
    if ((argc = atoi(argv[2])) >= 0 && argc <= 2)
	ret = true;
out:
    if (fd >= 0)
	close(fd);
    if (!mnt)
	umount("/proc");

    return ret;
}
#endif /* SUSE */

static struct option long_options[] =
{
    {"verbose",	0, (int*)0, 'v'},
    {"config",	1, (int*)0, 'c'},
    {"dryrun",	0, (int*)0, 'n'},
    {"default",	0, (int*)0, 'd'},
    {"remove",	0, (int*)0, 'r'},
    {"force",	0, (int*)0, 'f'},
    {"path",	1, (int*)0, 'p'},
    {"override",1, (int*)0, 'o'},
    {"upstart-job",1, (int*)0, 'u'},
    {"showall",	0, (int*)0, 's'},
    {"help",	0, (int*)0, 'h'},
    { 0,	0, (int*)0,  0 },
};

static void help(const char *restrict const name) attribute((nonnull(1)));
static void help(const char *restrict const  name)
{
    printf("Usage: %s [<options>] [init_script|init_directory]\n", name);
    printf("Available options:\n");
    printf("  -h, --help       This help.\n");
    printf("  -r, --remove     Remove the listed scripts from all runlevels.\n");
    printf("  -f, --force      Ignore if a required service is missed.\n");
    printf("  -v, --verbose    Provide information on what is being done.\n");
    printf("  -p <path>, --path <path>  Path to replace " INITDIR ".\n");
    printf("  -o <path>, --override <path> Path to replace " OVERRIDEDIR ".\n");
    printf("  -c <config>, --config <config>  Path to config file.\n");
    printf("  -n, --dryrun     Do not change the system, only talk about it.\n");
    printf("  -s, --showall    Output runlevel and sequence information.\n");
    printf("  -d, --default    Use default runlevels a defined in the scripts\n");
}


/*
 * Do the job.
 */
int main (int argc, char *argv[])
{
    DIR * initdir;
    struct dirent *d;
    struct stat st_script;
    extension char * argr[argc];
    char * path = INITDIR;
    char * override_path = OVERRIDEDIR;
    char * insconf = INSCONF;
    const char *const ipath = path;
    int runlevel, c, dfd;
    boolean del = false;
    boolean defaults = false;
    boolean ignore = false;
    boolean loadarg = false;
    boolean showall = false;

    myname = basename(*argv);

#ifdef SUSE
    if (underrpm())
	ignore = true;
#endif /* SUSE */

    if (getuid() == (uid_t)0)
	o_flags |= O_NOATIME;

    for (c = 0; c < argc; c++)
	argr[c] = (char*)0;

    while ((c = getopt_long(argc, argv, "c:dfrhvno:p:u:s", long_options, (int *)0)) != -1) {
	size_t l;
	switch (c) {
	    case 'c':
		if (optarg == (char*)0 || *optarg == '\0')
		    goto err;
		insconf = optarg;
		set_insconf = true;
		break;
	    case 'd':
		defaults = true;
		break;
	    case 'r':
		del = true;
		break;
	    case 'f':
		ignore = true;
		break;
	    case 'v':
		verbose ++;
		break;
	    case 'n':
		verbose ++;
		dryrun = true;
		break;
	    case 's':
		showall = true;
		dryrun = true;
		break;
	    case 'p':
		if (optarg == (char*)0 || *optarg == '\0')
		    goto err;
		if (path != ipath) free(path);
		l = strlen(optarg) - 1;
		path = xstrdup(optarg);
		if (*(path+l) == '/')
		    *(path+l) = '\0';
		break;
	    case 'o':
		if (optarg == (char*)0 || *optarg == '\0')
		    goto err;
		override_path = optarg;
		set_override = true;
		break;
	    case 'u':
		if (optarg == (char*)0 || *optarg == '\0')
		    goto err;
		upstartjob_path = optarg;
		break;
	    case '?':
	    err:
		error("For help use: %s -h\n", myname);
	    case 'h':
		help(myname);
		exit(0);
	    default:
		break;
	}
    }
    argv += optind;
    argc -= optind;

    if (argc)
	loadarg = true;
    else if (del)
	error("usage: %s [[-r] init_script|init_directory]\n", myname);

    if (*argv) {
	char * token = strpbrk(*argv, delimeter);

	/*
	 * Let us separate the script/service name from the additional arguments.
	 */
	if (token && *token) {
	    *token = '\0';
	    *argr = ++token;
	}

	/* Catch `/path/script', `./script', and `path/script' */
	if (strchr(*argv, '/')) {
	    if (stat(*argv, &st_script) < 0)
		error("%s: %s\n", *argv, strerror(errno));
	} else {
	    pushd(path);
	    if (stat(*argv, &st_script) < 0)
		error("%s: %s\n", *argv, strerror(errno));
	    popd();
	}

	if (S_ISDIR(st_script.st_mode)) {
	    const size_t l = strlen(*argv) - 1;

	    if (path != ipath) free(path);
	    path = xstrdup(*argv);
	    if (*(path+l) == '/')
		*(path+l) = '\0';

	    argv++;
	    argc--;
	    if (argc || del)
		error("usage: %s [[-r] init_script|init_directory]\n", myname);

	} else {
	    char * base, * ptr = xstrdup(*argv);

	    if ((base = strrchr(ptr, '/'))) {
		if (path != ipath) free(path);
		*base = '\0';
		path  = ptr;
	    } else
		free(ptr);
	}
    }

    if (strcmp(path, INITDIR) != 0) {
	char * tmp;
	if (*path != '/') {
	    char * pwd = getcwd((char*)0, 0);
	    size_t len = strlen(pwd)+1+strlen(path);
	    root = (char*)malloc(len);
	    if (!root)
		error("%s", strerror(errno));
	    strcpy(root, pwd);
	    if (pwd[1])
		strcat(root, "/");
	    strcat(root, path);
	    free(pwd);
	} else
	    root = xstrdup(path);
	if ((tmp = strstr(root, INITDIR))) {
	    *tmp = '\0';
	} else {
	    free(root);
	    root = (char*)0;
	}
    }

    c = argc;
    while (c--) {
	char * base;
	char * token = strpbrk(argv[c], delimeter);

	/*
	 * Let us separate the script/service name from the additional arguments.
	 */
	if (token && *token) {
	    *token = '\0';
	    argr[c] = ++token;
	}

	if (stat(argv[c], &st_script) < 0) {
	    if (errno != ENOENT)
		error("%s: %s\n", argv[c], strerror(errno));
	    pushd(path);
	    if (stat(argv[c], &st_script) < 0)
		error("%s: %s\n", argv[c], strerror(errno));
	    popd();
	}
	if ((base = strrchr(argv[c], '/'))) {
	    base++;
	    argv[c] = base;
	}
    }

#if defined(DEBUG) && (DEBUG > 0)
    for (c = 0; c < argc; c++)
	if (argr[c])
	    printf("Overwrite argument for %s is %s\n", argv[c], argr[c]);
#endif /* DEBUG */

    /*
     * Scan and set our configuration for virtual services.
     */
    scan_conf(insconf);

    /*
     * Expand system facilities to real services
     */
    expand_conf();

    /*
     * Initialize the regular scanner for the scripts.
     */
    scan_script_regalloc();

    /*
     * Scan always for the runlevel links to see the current
     * link scheme of the services.
     */
    scan_script_locations(path, override_path, ignore);

    /*
     * Clear out aliases found for scripts found up to this point.
     */
    clear_all();

    /*
     * Open the script directory
     */
    if ((initdir = opendir(path)) == (DIR*)0 || (dfd = dirfd(initdir)) < 0)
	error("can not opendir(%s): %s\n", path, strerror(errno));

#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
    (void)posix_fadvise(dfd, 0, 0, POSIX_FADV_WILLNEED);
    (void)posix_fadvise(dfd, 0, 0, POSIX_FADV_SEQUENTIAL);
#endif

    /*
     * Now scan for the service scripts and their LSB comments.
     */
    pushd(path);

    /*
     * Scan scripts found in the command line to be able to resolve
     * all dependcies given within those scripts.
     */
    if (argc > 1) for (c = 0; c < argc; c++) {
	const char *const name = argv[c];
	service_t * first = (service_t*)0;
	char * provides, * begin, * token;
	const uchar lsb = scan_script_defaults(dfd, name, override_path, (char**)0, true, ignore);

	if ((lsb & FOUND_LSB_HEADER) == 0) {
	    if ((lsb & (FOUND_LSB_DEFAULT|FOUND_LSB_OVERRIDE)) == 0)
	        warn("warning: script '%s' missing LSB tags and overrides\n", name);
	    else
	        warn("warning: script '%s' missing LSB tags\n", name);
	}

	if (!script_inf.provides || script_inf.provides == empty)
	    script_inf.provides = xstrdup(name);

	provides = xstrdup(script_inf.provides);
	begin = provides;
	while ((token = strsep(&begin, delimeter)) && *token) {
	    service_t * service;

	    if (*token == '$') {
		warn("script %s provides system facility %s, skipped!\n", name, token);
		continue;
	    }
	    if (*token == '#') {
		warn("script %s provides facility %s with comment sign, skipped!\n", name, token);
		continue;
	    }

	    service = addservice(token);

	    if (first)
		nickservice(first, service);
	    else
		first = service;

	    service->attr.flags |= SERV_CMDLINE;
	}
	free(provides);
    }

    /*
     * Scan now all scripts found in the init.d/ directory
     */
    for (;;) {
	service_t * service = (service_t*)0;
	char * token;
	char * begin = (char*)0;	/* hold start pointer of strings handled by strsep() */
	boolean hard = false;
	boolean isarg = false;
	uchar lsb = 0;
#if defined(DEBUG) && (DEBUG > 0)
	int nobug = 0;
#endif

	if ((d = readdir(initdir)) == (struct dirent*)0) {
	    /*
	     * If first script in argument list was loaded in advance, then
	     * rewind the init.d/ directory stream and attempt to load all
	     * other scripts.
	     */
	    if (loadarg) {
		loadarg = false;
		rewinddir(initdir);
		continue;
	    }
	    break;
	}

	isarg = chkfor(d->d_name, argv, argc);

	/*
	 * Load first script in argument list before all other scripts. This
	 * avoids problems with loading scripts in underterministic sequence
	 * returned by readdir(3).
	 */
	if (loadarg && !isarg)
	    continue;
	if (loadarg  && isarg && (curr_argc != 0))
	    continue;
	if (!loadarg && isarg && (curr_argc == 0))
	    continue;

	if (*d->d_name == '.')
	    continue;
	errno = 0;

	/* d_type seems not to work, therefore use (l)stat(2) */
	if (xlstat(dfd, d->d_name, &st_script) < 0) {
	    warn("can not stat(%s)\n", d->d_name);
	    continue;
	}
	if ((!S_ISREG(st_script.st_mode) && !S_ISLNK(st_script.st_mode)) ||
	    !(S_IXUSR & st_script.st_mode))
	{
	    if (S_ISDIR(st_script.st_mode))
		continue;
	    if (isarg)
		warn("script %s is not an executable regular file, skipped!\n", d->d_name);
	    continue;
	}

	/*
	 * Do extra sanity checking of symlinks in init.d/ dir, except if it
	 * is named reboot, as that is a special case on SUSE
	 */
	if (S_ISLNK(st_script.st_mode) && ((strcmp(d->d_name, "reboot") != 0)))
	{
	    char * base;
	    char linkbuf[PATH_MAX+1];
	    int  linklen;

	    linklen = xreadlink(dfd, d->d_name, linkbuf, sizeof(linkbuf)-1);
	    if (linklen < 0)
		continue;
	    linkbuf[linklen] = '\0';

	    /* skip symbolic links to other scripts in this relative path */
	    if (!(base = strrchr(linkbuf, '/'))) {
		if (isarg)
		    warn("script %s is a symlink to another script, skipped!\n",
			 d->d_name);
		continue;
	    }

	    /* stat the symlink target and make sure it is a valid script */
	    if (xstat(dfd, d->d_name, &st_script) < 0)
		continue;

	    if (!S_ISREG(st_script.st_mode) || !(S_IXUSR & st_script.st_mode)) {
		if (S_ISDIR(st_script.st_mode))
		    continue;
		if (isarg)
		    warn("script %s is not an executable regular file, skipped!\n",
			 d->d_name);
		continue;
	    }
	}

	if (!strncmp(d->d_name, "README", strlen("README"))) {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	if (!strncmp(d->d_name, "Makefile", strlen("Makefile"))) {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	if (!strcmp(d->d_name, "core")) {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	/* Common scripts not used within runlevels */
	if (!strcmp(d->d_name, "rx")	   ||
	    !strncmp(d->d_name, "skeleton", 8) ||
	    !strncmp(d->d_name, "powerfail", 9))
	{
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

#ifdef SUSE
	if (!strcmp(d->d_name, "boot") || !strcmp(d->d_name, "rc"))
#else  /* not SUSE */
	if (!strcmp(d->d_name, "rcS") || !strcmp(d->d_name, "rc"))
#endif /* not SUSE */
	{
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	if (cfgfile_filter(d) == 0) {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	/* left by emacs like editors */
	if (d->d_name[strlen(d->d_name)-1] == '~') {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	if (strspn(d->d_name, "$.#%_+-\\*[]^:()~")) {
	    if (isarg)
		warn("script name %s is not valid, skipped!\n", d->d_name);
	    continue;
	}

	/* main scanner for LSB comment in current script */
	lsb = scan_script_defaults(dfd, d->d_name, override_path, (char**)0, false, ignore);

	if ((lsb & FOUND_LSB_HEADER) == 0) {
	    if ((lsb & (FOUND_LSB_DEFAULT|FOUND_LSB_OVERRIDE)) == 0)
	        warn("warning: script '%s' missing LSB tags and overrides\n", d->d_name);
	    else
	        warn("warning: script '%s' missing LSB tags\n", d->d_name);
	}

#ifdef SUSE
	/* Common script ... */
	if (!strcmp(d->d_name, "halt")) {
	    service_t *serv = addservice("halt");
	    serv = getorig(serv);
	    makeprov(serv,   d->d_name);
	    runlevels(serv, 'S', "0");
	    serv->attr.flags |= (SERV_ALL|SERV_NOSTOP|SERV_INTRACT);
	    continue;
	}

	/* ... and its link */
	if (!strcmp(d->d_name, "reboot")) {
	    service_t *serv = addservice("reboot");
	    serv = getorig(serv);
	    makeprov(serv,   d->d_name);
	    runlevels(serv, 'S', "6");
	    serv->attr.flags |= (SERV_ALL|SERV_NOSTOP|SERV_INTRACT);
	    continue;
	}

	/* Common script for single mode */
	if (!strcmp(d->d_name, "single")) {
	    service_t *serv = addservice("single");
	    serv = getorig(serv);
	    makeprov(serv,   d->d_name);
	    runlevels(serv, 'S', "1 S");
	    serv->attr.flags |= (SERV_ALL|SERV_NOSTOP|SERV_INTRACT);
	    rememberreq(serv, REQ_SHLD, "kbd");
	    continue;
	}
#endif /* SUSE */

#ifndef SUSE
	if (!lsb) {
	    script_inf.required_start = xstrdup(DEFAULT_DEPENDENCY);
	    script_inf.required_stop = xstrdup(DEFAULT_DEPENDENCY);
	    script_inf.default_start = xstrdup(DEFAULT_START_LVL);
	    script_inf.default_stop = xstrdup(DEFAULT_STOP_LVL);
	}
#endif /* not SUSE */

	/*
	 * Oops, no comment found, guess one
	 */
	if (!script_inf.provides || script_inf.provides == empty) {
	    service_t * guess;
	    script_inf.provides = xstrdup(d->d_name);

	    /*
	     * Use guessed service to find it within the the runlevels
	     * (by using the list from the first scan for script locations).
	     */
	    if ((guess = findservice(script_inf.provides))) {
		/*
		 * Try to guess required services out from current scheme.
		 * Note, this means that all services are required.
		 */
		if (!script_inf.required_start || script_inf.required_start == empty) {
		    list_t * ptr;
		    list_for_each_prev(ptr, s_start) {
			service_t * tmp = getservice(ptr);
			tmp = getorig(tmp);
			if (!tmp->attr.sorder)
			    continue;
			if (tmp->attr.sorder >= guess->attr.sorder)
			    continue;
			if (tmp->start->lvl & guess->start->lvl) {
			    script_inf.required_start = xstrdup(tmp->name);
			    break;
			}
		    }
		}
		if (!script_inf.required_stop || script_inf.required_stop == empty) {
		    list_t * ptr;
		    list_for_each_prev(ptr, s_start) {
			service_t * tmp = getservice(ptr);
			tmp = getorig(tmp);
			if (!tmp->attr.korder)
			    continue;
			if (tmp->attr.korder <= guess->attr.korder)
			    continue;
			if (tmp->stopp->lvl & guess->stopp->lvl) {
			    script_inf.required_stop = xstrdup(tmp->name);
			    break;
			}
		    }
		}
		if (!script_inf.default_start || script_inf.default_start == empty) {
		    if (guess->start->lvl)
			script_inf.default_start = lvl2str(guess->start->lvl);
		}
		if (!script_inf.default_stop || script_inf.default_stop == empty) {
		    if (guess->stopp->lvl)
			script_inf.default_stop = lvl2str(guess->stopp->lvl);
		}

	    } else {	/* !findservice(&guess, script_inf.provides) */

		list_t * ptr;
		/*
		 * Find out which levels this service may have out from current scheme.
		 * Note, this means that the first requiring service wins.
		 */
		list_for_each(ptr, s_start) {
		    service_t * cur;
		    list_t * req;

		    if (script_inf.default_start && script_inf.default_start != empty)
			   break;
		    cur = getservice(ptr);
		    cur = getorig(cur);

		    if (list_empty(&cur->sort.req) || !(cur->attr.flags & SERV_ENABLED))
			continue;

		    np_list_for_each(req, &cur->sort.req) {
			if (!strcmp(getreq(req)->serv->name, script_inf.provides)) {
			    script_inf.default_start = lvl2str(getservice(ptr)->start->lvl);
			    break;
			}
		    }
		}
		list_for_each(ptr, s_start) {
		    service_t * cur;
		    list_t * rev;

		    if (script_inf.default_stop && script_inf.default_stop != empty)
			   break;
		    cur = getservice(ptr);
		    cur = getorig(cur);

		    if (list_empty(&cur->sort.rev) || !(cur->attr.flags & SERV_ENABLED))
			continue;

		    np_list_for_each(rev, &cur->sort.rev) {
			if (!strcmp(getreq(rev)->serv->name, script_inf.provides)) {
			    script_inf.default_stop = lvl2str(getservice(ptr)->stopp->lvl);
			    break;
			}
		    }
		}
	    }		/* !findservice(&guess, script_inf.provides) */
	}

	/*
	 * Use guessed service to find it within the the runlevels
	 * (by using the list from the first scan for script locations).
	 */
	if (!service) {
	    char * provides = xstrdup(script_inf.provides);
	    service_t * first = (service_t*)0;

	    begin = provides;
	    while ((token = strsep(&begin, delimeter)) && *token) {

		if (*token == '$') {
		    warn("script %s provides system facility %s, skipped!\n", d->d_name, token);
		    continue;
		}
		if (*token == '#') {
		    warn("script %s provides facility %s with comment sign, skipped!\n", d->d_name, token);
		    continue;
		}

		service = addservice(token);
 
		if (first)
		    nickservice(first, service);
		else
		    first = service;

#if defined(DEBUG) && (DEBUG > 0)
		nobug++;
#endif
		if (!makeprov(service, d->d_name)) {

		    if (!del || (del && !isarg))
			warn("script %s: service %s already provided!\n", d->d_name, token);

		    if (!del && !ignore && isarg)
			error("exiting now!\n");

		    if (!del || (del && !ignore && !isarg))
			continue;

		    /* Provide this service with an other name to be able to delete it */
		    service = addservice(d->d_name);
		    service = getorig(service);
		    service->attr.flags |= SERV_ALREADY;
		    (void)makeprov(service, d->d_name);

		    continue;
	    	}

		if (service) {
		    boolean known = (service->attr.flags & SERV_KNOWN);
		    service->attr.flags |= SERV_KNOWN;

		    if (!known) {
			if (script_inf.required_start && script_inf.required_start != empty) {
			    rememberreq(service, REQ_MUST, script_inf.required_start);
#ifdef USE_COMPAT_EMPTY
			    if (!script_inf.required_stop || script_inf.required_stop == empty)
				script_inf.required_stop = xstrdup(script_inf.required_start);
#endif /* USE_COMPAT_EMPTY */
			}
			if (script_inf.should_start && script_inf.should_start != empty) {
			    rememberreq(service, REQ_SHLD, script_inf.should_start);
#ifdef USE_COMPAT_EMPTY
			    if (!script_inf.should_stop || script_inf.should_stop == empty)
				script_inf.should_stop = xstrdup(script_inf.should_start);
#endif /* USE_COMPAT_EMPTY */
			}
			if (script_inf.required_stop && script_inf.required_stop != empty) {
			    rememberreq(service, REQ_MUST|REQ_KILL, script_inf.required_stop);
			}
			if (script_inf.should_stop && script_inf.should_stop != empty) {
			    rememberreq(service, REQ_SHLD|REQ_KILL, script_inf.should_stop);
			}
			if (script_inf.interactive && 0 == strcmp(script_inf.interactive, "true")) {
			    service->attr.flags |= SERV_INTRACT;
			}
		    }

		    if (script_inf.start_before && script_inf.start_before != empty) {
			reversereq(service, REQ_SHLD, script_inf.start_before);
#ifdef USE_COMPAT_EMPTY
			if (!script_inf.stop_after || script_inf.stop_after == empty)
			    script_inf.stop_after = xstrdup(script_inf.start_before);
#endif /* USE_COMPAT_EMPTY */
		    }
		    if (script_inf.stop_after && script_inf.stop_after != empty) {
			reversereq(service, REQ_SHLD|REQ_KILL, script_inf.stop_after);
		    }
		    /*
		     * Use information from symbolic link structure to
		     * check if all services are around for this script.
		     */
		    if (isarg) {
			boolean ok = true;
			if (del)
			    ok = chkdependencies(service);
			else
			    ok = chkrequired(service);
			if (!ok && !ignore)
			    error("exiting now!\n");
		    }

		    if (script_inf.default_start && script_inf.default_start != empty) {
		 	ushort deflvls = str2lvl(script_inf.default_start);

			if (service->attr.flags & SERV_ENABLED) {
			    /*
			     * Currently linked into service runlevel scheme, check
			     * if the defaults are overwriten. Compare all bits,
			     * which means `==' and not `&' and overwrite the defaults
			     * of the current script.
			     */
			    if (!defaults && (deflvls != service->start->lvl)) {
				if (!del && isarg && !(argr[curr_argc]))
				    warn("warning: current start runlevel(s) (%s) of script `%s' overrides LSB defaults (%s).\n",
					 service->start->lvl ? lvl2str(service->start->lvl) : "empty", d->d_name, lvl2str(deflvls));
			    }
			} else
			    /*
			     * Currently not linked into service runlevel scheme, info
			     * needed for enabling interactive services at first time.
			     */
			    service->start->lvl = deflvls;

		    } else if (script_inf.default_start == empty) {
			if (service->attr.flags & SERV_ENABLED) {
			    /*
			     * Currently linked into service runlevel scheme, check
			     * if the defaults are overwriten. Compare all bits,
			     * which means `==' and not `&' and overwrite the defaults
			     * of the current script.
			     */
			    if (!defaults && service->start->lvl != 0) {
				if (!del && isarg && !(argr[curr_argc]))
				    warn("warning: current start runlevel(s) (%s) of script `%s' overrides LSB defaults (empty).\n",
					 lvl2str(service->start->lvl), d->d_name);
				script_inf.default_start = lvl2str(service->start->lvl);
			    }
			}
		    } else if (!script_inf.default_start && (service->attr.flags & SERV_NOTLSB)) {
#ifdef SUSE
			/*
			 * Could be a none LSB script, use info from current link scheme.
			 * If not found use default.
			 */
			if (service->attr.flags & SERV_ENABLED)
			    script_inf.default_start = lvl2str(service->start->lvl);
			else
			    script_inf.default_start = xstrdup(DEFAULT_START_LVL);
#endif /* SUSE */
		    }
#ifdef SUSE
		    /*
		     * This because SuSE boot script concept uses a differential link scheme.
		     * Therefore default_stop is ignored and overwriten by default_start.
		     */
		    xreset(script_inf.default_stop);
		    if (script_inf.default_start && script_inf.default_start != empty)
			script_inf.default_stop = xstrdup(script_inf.default_start);
		    else
			script_inf.default_stop = empty;
		    oneway(script_inf.default_stop);
#endif /* SUSE */
		    if (script_inf.default_stop && script_inf.default_stop != empty) {
		 	ushort deflvlk = str2lvl(script_inf.default_stop);

			/*
			 * Compare all bits, which means `==' and not `&' and overwrite
			 * the defaults of the current script.
			 */
			if (service->attr.flags & SERV_ENABLED) {
			    /*
			     * Currently linked into service runlevel scheme, check
			     * if the defaults are overwriten.
			     */
			    if (!defaults && (deflvlk != service->stopp->lvl)) {
				if (!del && isarg && !(argr[curr_argc]))
				    warn("warning: current stop runlevel(s) (%s) of script `%s' overrides LSB defaults (%s).\n",
					 service->stopp->lvl ? lvl2str(service->stopp->lvl) : "empty", d->d_name, lvl2str(deflvlk));
			    }
			} else
			    /*
			     * Currently not linked into service runlevel scheme, info
			     * needed for enabling interactive services at first time.
			     */
			    service->stopp->lvl = deflvlk;

		    } else if (script_inf.default_stop == empty) {
			if (service->attr.flags & SERV_ENABLED) {
			    /*
			     * Currently linked into service runlevel scheme, check
			     * if the defaults are overwriten. Compare all bits,
			     * which means `==' and not `&' and overwrite the defaults
			     * of the current script.
			     */
			    if (!defaults && service->stopp->lvl != 0) {
				if (!del && isarg && !(argr[curr_argc]))
				    warn("warning: current stop runlevel(s) (%s) of script `%s' overrides LSB defaults (empty).\n",
					 lvl2str(service->stopp->lvl), d->d_name);
				script_inf.default_stop = lvl2str(service->stopp->lvl);
			    }
			}
		    } else if (!script_inf.default_stop && (service->attr.flags & SERV_NOTLSB)) {
#ifdef SUSE
			/*
			 * Could be a none LSB script, use info from current link scheme.
			 * If not found use default.
			 */
			if (service->attr.flags & SERV_ENABLED)
			    script_inf.default_stop = lvl2str(service->stopp->lvl);
			else
			    script_inf.default_stop = xstrdup(DEFAULT_STOP_LVL);
#endif /* SUSE */
		    }
		}
	    }
	    free(provides);
	}

#ifdef SUSE
	/* Ahh ... set default multiuser with network */
	if (!script_inf.default_start || script_inf.default_start == empty) {
	    if (!script_inf.default_start)
		warn("Default-Start undefined, assuming default start runlevel(s) for script `%s'\n", d->d_name);
	    script_inf.default_start = xstrdup(DEFAULT_START_LVL);
	    xreset(script_inf.default_stop);
	    script_inf.default_stop = xstrdup(script_inf.default_start);
	    oneway(script_inf.default_stop);
	}
#else  /* not SUSE */
	if (!script_inf.default_start) {
	    warn("Default-Start undefined, assuming empty start runlevel(s) for script `%s'\n", d->d_name);
	    script_inf.default_start = empty;
	}
#endif /* not SUSE */

#ifdef SUSE
	if (!script_inf.default_stop || script_inf.default_stop == empty) {
	    if (script_inf.default_start && script_inf.default_start != empty)
		script_inf.default_stop = xstrdup(script_inf.default_start);
	    else
		script_inf.default_stop = xstrdup(DEFAULT_STOP_LVL);
	    oneway(script_inf.default_stop);
	}
#else  /* not SUSE */
	if (!script_inf.default_stop) {
	    warn("Default-Stop  undefined, assuming empty stop  runlevel(s) for script `%s'\n", d->d_name);
	    script_inf.default_stop = empty;
	}
#endif /* not SUSE */

	if (isarg && !defaults && !del) {
	    if (argr[curr_argc]) {
		char * ptr = argr[curr_argc];
		struct _mark {
		    const char * wrd;
		    const boolean sk;
		    char * order;
		    char ** str;
		} mark[] = {
		    {"start=",	  true,  (char*)0, &script_inf.default_start},
		    {"stop=",	  false, (char*)0, &script_inf.default_stop },
#if 0
		    {"reqstart=", false, (char*)0, &script_inf.required_start},
		    {"reqstop=",  false, (char*)0, &script_inf.required_stop },
#endif
		    {(char*)0,	  false, (char*)0, (char**)0}
		};

		for (c = 0; mark[c].wrd; c++) {
		    char * order = strstr(ptr, mark[c].wrd);
		    if (order)
			mark[c].order = order;
		}

		for (c = 0; mark[c].wrd; c++)
		    if (mark[c].order) {
			*(mark[c].order) = '\0';
			mark[c].order += strlen(mark[c].wrd);
		    }

		for (c = 0; mark[c].wrd; c++)
		    if (mark[c].order) {
			size_t len = strlen(mark[c].order);
			if (len > 0) {
			    char * ptr = mark[c].order + len - 1;
			    if (*ptr == ',') *ptr = '\0';
			}
			if (ignore) {
			    service_t *arg = findservice(getprovides(d->d_name));
			    arg = getorig(arg);
			    if (mark[c].sk)
				arg->start->lvl = 0;
			    else
				arg->stopp->lvl = 0;
			}
			xreset(*(mark[c].str));
			*(mark[c].str) = xstrdup(mark[c].order);
		    }
		hard = true;
#ifdef SUSE
		/*
		 * This because SuSE boot script concept uses a differential link scheme.
		 * Therefore default_stop is ignored and overwriten by default_start.
		 */
		if (strcmp(script_inf.default_stop, script_inf.default_start) != 0) {
		    xreset(script_inf.default_stop);
		    script_inf.default_stop = xstrdup(script_inf.default_start);
		    oneway(script_inf.default_stop);
		}
#endif /* SUSE */
	    }
	}

#if defined(DEBUG) && (DEBUG > 0)
	if (!nobug) {
	    fprintf(stderr, "internal BUG at line %d with script %s\n", __LINE__, d->d_name);
	    exit(1);
	}
#endif

	begin = script_inf.provides;
	while ((token = strsep(&script_inf.provides, delimeter)) && *token) {
	    if (*token == '$')
		continue;
	    if (*token == '#')
		continue;
	    if (!service)
		service = addservice(token);
	    service = getorig(service);

	    if ((service->attr.flags & SERV_ENABLED) && !hard) {
		if (del)
		    continue;
		if (!defaults)
		    continue;
	    }

	    if (script_inf.default_start && script_inf.default_start != empty)
		runlevels(service, 'S', script_inf.default_start);
	    if (script_inf.default_stop && script_inf.default_stop != empty)
		runlevels(service, 'K', script_inf.default_stop);
	}
	script_inf.provides = begin;

	/* Remember if not LSB conform script */
	if (!lsb && service) {
	    service = getorig(service);
	    service->attr.flags |= SERV_NOTLSB;
	}
    }
    /* Reset remaining pointers */
    scan_script_reset();

    /*
     * Free the regular scanner for the scripts.
     */
    scan_script_regfree();

    /* back */
    popd();
    closedir(initdir);

    /*
     * Clear out aliases found for all scripts.
     */
    clear_all();

    /*
     * Set virtual dependencies for already enabled none LSB scripts.
     */
    nonlsb_script();

    /*
     * Handle the `$all' scripts
     */
    all_script();

    /*
     * Now generate for all scripts the dependencies
     */
    follow_all();
    if (is_loop_detected() && !ignore)
	error("exiting now without changing boot order!\n");

    /*
     * Be sure that interactive scripts are the only member of
     * a start group (for parallel start only).
     */
    active_script();

    /*
     * Sorry but we support only [KS][0-9][0-9]<name>
     */
    if (maxstart > MAX_DEEP || maxstop > MAX_DEEP)
	error("Maximum of %u in ordering reached\n", MAX_DEEP);

    if (showall)
	show_all();

#if defined(DEBUG) && (DEBUG > 0)
    printf("Maxorder %d/%d\n", maxstart, maxstop);
    show_all();
#else
# ifdef SUSE	/* SuSE's SystemV link scheme */
    pushd(path);
    for (runlevel = 0; runlevel < RUNLEVLES; runlevel++) {
	const ushort lvl = map_runlevel_to_lvl(runlevel);
	char nlink[PATH_MAX+1], olink[PATH_MAX+1];
	const char * rcd = (char*)0;
	const char * script;
	service_t *serv;
	DIR  * rcdir;

	if ((rcd = map_runlevel_to_location(runlevel)) == (char*)0)
	    continue;

	rcdir = openrcdir(rcd);		/* Creates runlevel directory if necessary */
	if (rcdir == (DIR*)0)
	    break;
	if ((dfd = dirfd(rcdir)) < 0) {
	    closedir(rcdir);
	    break;
	}
	pushd(rcd);

	/*
	 * See if we found scripts which should not be
	 * included within this runlevel directory.
	 */
	while ((d = readdir(rcdir)) != (struct dirent*)0) {
	    const char * ptr = d->d_name;
	    char type;

	    if (*ptr != 'S' && *ptr != 'K')
		continue;
	    type = *ptr;
	    ptr++;

	    if (strspn(ptr, "0123456789") != 2)
		continue;
	    ptr += 2;

	    if (xstat(dfd, d->d_name, &st_script) < 0)
		xremove(dfd, d->d_name);	/* dangling sym link */

	    if (notincluded(ptr, type, runlevel)) {
		serv = findservice(getprovides(ptr));
		if (defaults) {
		    xremove(dfd, d->d_name);
		    if (serv && --serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
		} else if (lvl & LVL_ONEWAY) {
		    xremove(dfd, d->d_name);
		    if (serv && --serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
		} else if (del && ignore) {
		    if (serv && (serv->attr.flags & SERV_ALREADY)) {
			xremove(dfd, d->d_name);
			if (--serv->attr.ref <= 0)
			    serv->attr.flags &= ~SERV_ENABLED;
		    }
		}
	    }
	}

	/*
	 * Seek for scripts which are included, link or
	 * correct order number if necessary.
	 */

	script = (char*)0;
	while ((serv = listscripts(&script, 'X', lvl))) {
	    const boolean this = chkfor(script, argv, argc);
	    boolean found, slink;
	    char * clink;

	    if (*script == '$')		/* Do not link in virtual dependencies */
		continue;

	    slink = false;
	    if ((serv->start->lvl & lvl) == 0)
		goto stop;

	    sprintf(olink, "../%s",   script);
	    sprintf(nlink, "S%.2d%s", serv->attr.sorder, script);

	    found = false;
	    rewinddir(rcdir);
	    while ((clink = scan_for(rcdir, script, 'S'))) {
		found = true;
		if (strcmp(clink, nlink)) {
		    xremove(dfd, clink);		/* Wrong order, remove link */
		    if (--serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
		    if (!this) {
			xsymlink(dfd, olink, nlink);	/* Not ours, but correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		    if (this && !del) {
			xsymlink(dfd, olink, nlink);	/* Restore, with correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		} else {
		    if (del && this) {
			xremove(dfd, clink);		/* Found it, remove link */
			if (--serv->attr.ref <= 0)
			    serv->attr.flags &= ~SERV_ENABLED;
		    }
		}
	    }

	    if (this) {
		/*
		 * If we haven't found it and we shouldn't delete it
		 * we try to add it.
		 */
		if (!del && !found) {
		    xsymlink(dfd, olink, nlink);
		    if (++serv->attr.ref)
			serv->attr.flags |= SERV_ENABLED;
		    found = true;
		}
	    }

	    /* Start links done, now do Kill links */

	    slink = found;
	stop:
	    if ((serv->stopp->lvl & lvl) == 0)
		continue;

	    sprintf(olink, "../%s",   script);
	    sprintf(nlink, "K%.2d%s", serv->attr.korder, script);

	    found = false;
	    rewinddir(rcdir);
	    while ((clink = scan_for(rcdir, script, 'K'))) {
		found = true;
		if (strcmp(clink, nlink)) {
		    xremove(dfd, clink);		/* Wrong order, remove link */
		    if (--serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
		    if (!this) {
			xsymlink(dfd, olink, nlink);	/* Not ours, but correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		    if (this && !del) {
			xsymlink(dfd, olink, nlink);	/* Restore, with correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		} else {
		    if (del && this) {
			xremove(dfd, clink);		/* Found it, remove link */
			if (--serv->attr.ref <= 0)
			    serv->attr.flags &= ~SERV_ENABLED;
		    }
		}
	    }

	    if (this && slink) {
		/*
		 * If we haven't found it and we shouldn't delete it
		 * we try to add it.
		 */
		if (!del && !found) {
		    xsymlink(dfd, olink, nlink);
		    if (++serv->attr.ref)
			serv->attr.flags |= SERV_ENABLED;
		}
	    }
	}
	popd();
	closedir(rcdir);
    }
# else  /* not SUSE but Debian SystemV link scheme */
   /*
    * Remark: At SuSE we use boot scripts for system initialization which
    * will be executed by /etc/init.d/boot (which is equal to rc.sysinit).
    * At system reboot or system halt the stop links of those boot scripts
    * will be executed by /etc/init.d/halt.  Don't know how todo this for
    * a traditional standard SystemV link scheme.  Maybe for such an
    * approach a new directory halt.d/ whould be an idea.
    */
    pushd(path);
    for (runlevel = 0; runlevel < RUNLEVLES; runlevel++) {
	char nlink[PATH_MAX+1], olink[PATH_MAX+1];
	const char * rcd = (char*)0;
	const char * script;
	service_t * serv;
	ushort lvl, seek;
	DIR  * rcdir;

	if ((rcd = map_runlevel_to_location(runlevel)) == (char*)0)
	    continue;
	lvl  = map_runlevel_to_lvl(runlevel);
	seek = map_runlevel_to_seek(runlevel);

	rcdir = openrcdir(rcd);		/* Creates runlevel directory if necessary */
	if (rcdir == (DIR*)0)
	    break;
	if ((dfd = dirfd(rcdir)) < 0) {
	    closedir(rcdir);
	    break;
	}
	pushd(rcd);

	/*
	 * See if we found scripts which should not be
	 * included within this runlevel directory.
	 */
	while ((d = readdir(rcdir)) != (struct dirent*)0) {
	    const char * ptr = d->d_name;
	    char type;

	    if (*ptr != 'S' && *ptr != 'K')
		continue;
	    type = *ptr;
	    ptr++;

	    if (strspn(ptr, "0123456789") != 2)
		continue;
	    ptr += 2;

	    if (xstat(dfd, d->d_name, &st_script) < 0)
		xremove(dfd, d->d_name);	/* dangling sym link */

	    if (notincluded(ptr, type, runlevel)) {
		serv = findservice(getprovides(ptr));
		if (defaults) {
		    xremove(dfd, d->d_name);
		    if (serv && --serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
#  ifndef USE_KILL_IN_BOOT
		} else if (lvl & LVL_BOOT) {
		    xremove(dfd, d->d_name);
		    if (serv && --serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
#  endif /* USE_KILL_IN_BOOT */
		} else if (del && ignore) {
		    if (serv && (serv->attr.flags & SERV_ALREADY))
			xremove(dfd, d->d_name);
			if (--serv->attr.ref <= 0)
			    serv->attr.flags &= ~SERV_ENABLED;
		}
	    }
	}

	script = (char*)0;
	while ((serv = listscripts(&script, 'X', seek))) {
	    const boolean this = chkfor(script, argv, argc);
	    boolean found;
	    char * clink;
	    char mode;

	    if (*script == '$')		/* Do not link in virtual dependencies */
		continue;

	    sprintf(olink, "../init.d/%s", script);
	    if (serv->stopp->lvl & lvl) {
#  ifndef USE_KILL_IN_BOOT
		if (lvl & LVL_BOOT)			/* No kill links in rcS.d */
			continue;
#  endif /* USE_KILL_IN_BOOT */
		sprintf(nlink, "K%.2d%s", serv->attr.korder, script);
		mode = 'K';
	    } else if (serv->start->lvl & lvl) {
		sprintf(nlink, "S%.2d%s", serv->attr.sorder, script);
		mode = 'S';
	    } else
		continue;		/* We aren't suppose to be on this runlevel */

	    found = false;

	    rewinddir(rcdir);
	    while ((clink = scan_for(rcdir, script, mode))) {
		found = true;
		if (strcmp(clink, nlink)) {
		    xremove(dfd, clink);		/* Wrong order, remove link */
		    if (--serv->attr.ref <= 0)
			serv->attr.flags &= ~SERV_ENABLED;
		    if (!this) {
			xsymlink(dfd, olink, nlink);	/* Not ours, but correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		    if (this && !del) {
			xsymlink(dfd, olink, nlink);	/* Restore, with correct order */
			if (++serv->attr.ref)
			    serv->attr.flags |= SERV_ENABLED;
		    }
		} else {
		    if (del && this) {
			xremove(dfd, clink);		/* Found it, remove link */
			if (--serv->attr.ref <= 0)
			    serv->attr.flags &= ~SERV_ENABLED;
		    }
		}
	    }

	    if (this) {
		/*
		 * If we haven't found it and we shouldn't delete it
		 * we try to add it.
		 */
		if (!del && !found) {
		    xsymlink(dfd, olink, nlink);
		    if (++serv->attr.ref)
			serv->attr.flags |= SERV_ENABLED;
		    found = true;
		}
	    }
	}

	popd();
	closedir(rcdir);
    }
# endif /* !SUSE, standard SystemV link scheme */
#endif  /* !DEBUG */

    /*
     * Do the makedep
     */
    makedep();

    /*
     * Back to the root(s)
     */
    popd();

    /*
     * Make valgrind happy
     */
    if (path != ipath) free(path);
    if (root) free(root);

    return 0;
}