finit/src/legacy.c

/* Legacy one-liner parser for /etc/finit.conf and the finit.d hierarchy
 *
 * NOTE: this parser is frozen at the Finit 4.x feature set.  It is
 *       kept, indefinitely, for backwards compatibility -- existing
 *       configurations must keep working.  All new directives and
 *       options land in the libconfuse-based format, see conf.c
 *
 * Copyright (c) 2012-2025  Joachim Wiberg <troglobit@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "config.h"		/* Generated by configure script */

#include <ctype.h>
#include <dirent.h>
#include <string.h>
#include <sys/resource.h>
#ifdef _LIBITE_LITE
# include <libite/lite.h>
# include <libite/queue.h>	/* BSD sys/queue.h API */
#else
# include <lite/lite.h>
# include <lite/queue.h>	/* BSD sys/queue.h API */
#endif
#include "finit.h"
#include "cond.h"
#include "conf.h"
#include "devmon.h"
#include "legacy.h"
#include "private.h"
#include "service.h"
#include "tty.h"
#include "helpers.h"
#include "util.h"

#define BOOTSTRAP (runlevel == INIT_LEVEL)

struct env_entry {
	TAILQ_ENTRY(env_entry) link;
	char *name;
};
static TAILQ_HEAD(, env_entry) env_list = TAILQ_HEAD_INITIALIZER(env_list);

static int get_bool(char *arg, int default_value)
{
	if (!arg)
		goto fallback;

	if (string_compare(arg, "true") || string_compare(arg, "on") || string_compare(arg, "1"))
		return 1;
	if (string_compare(arg, "false") || string_compare(arg, "off") || string_compare(arg, "0"))
		return 0;
fallback:
	return default_value;
}

static int validate_arg(char *arg, const char *opt)
{
	if (!arg) {
		errx(1, "option %s missing argument, skipping.", opt);
		return 1;
	}

	return 0;
}

/*
 * finit.cond   = foo          (=> <boot/foo>)
 * finit.config = /path/to/etc/alt-finit.conf
 * finit.debug  = [on,off]
 * finit.fstab  = /path/to/etc/fstab.aternative
 * finit.status = [on,off]     (compat finit.show_status)
 * finit.status_style = [old,classic,modern]
 */
static void parse_finit_opts(char *opt)
{
	char *arg;

	arg = strchr(opt, '=');
	if (arg)
		*arg++ = 0;

	if (string_compare(opt, "cond")) {
		if (validate_arg(arg, "finit.cond"))
			return;
		cond_boot_parse(arg);
		return;
	}

	if (string_compare(opt, "config")) {
		if (validate_arg(arg, "finit.config"))
			return;
		if (finit_conf)
			free(finit_conf);
		finit_conf = strdup(arg);
		return;
	}

	if (string_compare(opt, "debug")) {
		debug = get_bool(arg, 1);
		return;
	}

	if (string_compare(opt, "fstab")) {
		if (validate_arg(arg, "finit.fstab"))
			return;
		if (fstab)
			free(fstab);
		fstab = strdup(arg);
		return;
	}

	if (string_compare(opt, "status_style")) {
		if (validate_arg(arg, "finit.status_style"))
			return;

		if (string_compare(arg, "old") || string_compare(arg, "classic"))
			show_progress(PROGRESS_CLASSIC);
		else
			show_progress(PROGRESS_MODERN);
		return;
	}

	if (string_compare(opt, "status") || string_compare(opt, "show_status")) {
		show_progress(get_bool(arg, 1) ? PROGRESS_DEFAULT : PROGRESS_SILENT);
		return;
	}
}

static void parse_fsck_opts(char *opt)
{
	char *arg;

	arg = strchr(opt, '=');
	if (arg)
		*arg++ = 0;

	if (string_compare(opt, "mode")) {
		if (validate_arg(arg, "fsck.mode"))
			return;

		if (!strcmp(arg, "skip"))
			fsck_mode = NULL;
		if (!strcmp(arg, "auto"))
			fsck_mode = "";
		if (!strcmp(arg, "force"))
			fsck_mode = "-f";

		return;
	}

	if (string_compare(opt, "repair")) {
		if (validate_arg(arg, "fsck.repair"))
			return;

		if (!strcmp(arg, "no"))
			fsck_repair = "-n";
		if (!strcmp(arg, "preen"))
			fsck_repair = "-p";
		if (!strcmp(arg, "yes"))
			fsck_repair = "-y";

		return;
	}
}

/*
 * When runlevel (single integer) is given on the command line,
 * it overrides the runlevel in finit.conf and the built-in
 * default (from configure).  It do however have to pass the
 * same sanity checks.
 */
static int parse_runlevel(char *arg)
{
	const char *err = NULL;
	char *ptr = arg;
	long long num;

	/* Sanity check the token is just digit(s) */
	while (*ptr) {
		if (!isdigit(*ptr++))
			return 0;
	}

	num = strtonum(arg, 1, 9, &err);
	if (err || num == 6) {
		dbg("Not a valid runlevel (%s), valid levels are [1-9], excluding 6, skipping.", arg);
		return 0;
	}

	return (int)num;
}

static void parse_arg(char *arg)
{
	if (!strncmp(arg, "finit.", 6)) {
		parse_finit_opts(&arg[6]);
		return;
	}

	if (!strncmp(arg, "fsck.", 5)) {
		parse_fsck_opts(&arg[5]);
		return;
	}

#ifdef RESCUE_MODE
	if (string_compare(arg, "rescue") || string_compare(arg, "recover")) {
		rescue = 1;
		return;
	}
#endif

	if (string_compare(arg, "single") || string_compare(arg, "S")) {
		single = 1;
		return;
	}

	/* Put any new command line options before this line. */

	cmdlevel = parse_runlevel(arg);
}

#ifdef KERNEL_CMDLINE
/*
 * Parse /proc/cmdline to find args for init.  Don't use this!
 *
 * Instead, rely on the kernel to give Finit its arguments as
 * regular argc + argv[].  Only use this if the system you run
 * on has a broken initramfs system that cannot forward args
 * to Finit properly.
 */
static void parse_kernel_cmdline(void)
{
	char line[LINE_SIZE], *cmdline, *tok;
	FILE *fp;

	fp = fopen("/proc/cmdline", "r");
	if (!fp)
		return;

	if (!fgets(line, sizeof(line), fp)) {
		fclose(fp);
		return;
	}

	cmdline = chomp(line);
	dbg("%s", cmdline);

	while ((tok = strtok(cmdline, " \t"))) {
		cmdline = NULL;
		parse_arg(tok);
	}
	fclose(fp);
}
#else
#define parse_kernel_cmdline()
#endif

static void parse_kernel_loglevel(void)
{
	char line[LINE_SIZE], *ptr;
	FILE *fp;
	int val;

	fp = fopen("/proc/sys/kernel/printk", "r");
	if (!fp)
		return;

	if (!fgets(line, sizeof(line), fp)) {
		fclose(fp);
		return;
	}
	fclose(fp);

	ptr = chomp(line);
	dbg("%s", ptr);
	val = atoi(ptr);
	if (val >= 7)
		kerndebug = 1;
}

/*
 * Kernel gives us all non-kernel options on our cmdline
 */
void conf_parse_cmdline(int argc, char *argv[])
{
	const char *ptr;

	/* Set up defaults */
	if ((ptr = FINIT_FSTAB))
		fstab = strdup(ptr);
	finit_conf = strdup(FINIT_CONF);
	finit_rcsd = strdup(FINIT_RCSD);

	for (int i = 1; i < argc; i++)
		parse_arg(argv[i]);

	parse_kernel_cmdline();
	parse_kernel_loglevel();
}

/*
 * Clear all environment variables read in parse_env(), they may be
 * removed now so let the next call to parse_env() restore them.
 */
void conf_reset_env(void)
{
	struct env_entry *node, *tmp;

	TAILQ_FOREACH_SAFE(node, &env_list, link, tmp) {
		TAILQ_REMOVE(&env_list, node, link);
		if (node->name) {
			unsetenv(node->name);
			free(node->name);
		}
		free(node);
	}

	if (!getenv("PATH"))
		setenv("PATH", _PATH_STDPATH, 1);
	if (!getenv("SHELL"))
		setenv("SHELL", _PATH_BSHELL, 1);
	setenv("LOGNAME", "root", 1);
	setenv("USER", "root", 1);
}

/*
 * Sourced mainly by initctl and other Finit helper tools
 */
void conf_saverc(void)
{
	FILE *fp;

	mkpath(_PATH_VARRUN "finit", 0755);
	fp = fopen(_PATH_VARRUN "finit/.initrc", "w");
	if (!fp) {
		err(1, "failed creating .finitrc");
		return;
	}

	fprintf(fp, "FINIT_CONF=%s\n", finit_conf);
	fprintf(fp, "FINIT_RCSD=%s\n", finit_rcsd);
	fprintf(fp, "FINIT_CGPATH=%s\n", FINIT_CGPATH);
	fprintf(fp, "INIT_SOCKET=%s\n", INIT_SOCKET);
	fprintf(fp, "INIT_MAGIC=0x%08x\n", INIT_MAGIC);

	fclose(fp);
}

/*
 * Called at bootstrap to log execution order (for debug)
 */
void conf_save_exec_order(svc_t *svc, char *cmdline, int result)
{
	const char *fn = _PATH_VARRUN "finit/exec.order";
	const char *ststr = !result ? "[ OK ]" : "[FAIL]";
	static char *prepared = NULL;
	int first = !fexist(fn);
	FILE *fp;

	fp = fopen(fn, "a+");
	if (!fp) {
		err(1, "failed writing to %s", fn);
		return;
	}

	if (first) {
		fprintf(fp, "# Execution order of run/task/services at bootstrap\n");
		fprintf(fp, "# ST    TYPE     COMMAND LINE (DESC)\n");
	}

	if (result == -1) {
		int len;

		len = snprintf(NULL, 0, "        %-7s  %-64s (%s)", svc_typestr(svc), cmdline, svc->desc);
		if (len > 0) {
			if (prepared)
				free(prepared);
			prepared = malloc(++len);
			if (!prepared)
				goto done;
			snprintf(prepared, len, "        %-7s  %-64s (%s)", svc_typestr(svc), cmdline, svc->desc);
		}
	} else {
		if (prepared) {
			memcpy(prepared, ststr, strlen(ststr));
			fprintf(fp, "%s\n", prepared);
			free(prepared);
			prepared = NULL;
		} else {
			fprintf(fp, "%s  %-7s  %-64s (%s)\n", ststr, svc_typestr(svc), cmdline, svc->desc);
		}
	}
done:
	fclose(fp);
}

/*
 * Called by plugins and similar that dynamically generate system services
 */
void conf_save_service(int type, char *cfg, char *file)
{
	char fn[256];
	svc_t foo;
	FILE *fp;

	mkpath(FINIT_RUNPATH_, 0755);
	snprintf(fn, sizeof(fn), "%s/%s", FINIT_RUNPATH_, file);
	if (fexist(fn))
		warnx("File %s already exists, overwriting.", fn);
	fp = fopen(fn, "w");
	if (!fp) {
		err(1, "Failed creating %s", fn);
		return;
	}

	foo.type = type;
	fprintf(fp, "# Generated by finit:%s()\n", __func__);
	fprintf(fp, "%s %s\n", svc_typestr(&foo), cfg);
	fclose(fp);
}

/**
 * conf_parse_env - Parse a key=value line
 * @line: Line buffer without newline
 * @value:  Whitespace trimmed value
 *
 * Returns:
 * %NULL on error, otherwise a whitespace trimmed key.
 */
char *conf_parse_env(char *line, char **value)
{
	char *key, *val, *end;

	/* skip any leading whitespace */
	key = line;
	while (isspace(*key))
		key++;

	/* find end of line */
	end = key;
	while (*end)
		end++;

	/* strip trailing whitespace */
	if (end > key) {
		end--;
		while (isspace(*end))
			*end-- = 0;
	}

	val = strchr(key, '=');
	if (!val)
		return NULL;
	*val++ = 0;

	/* strip leading whitespace from value */
	while (isspace(*val))
		val++;

	/* unquote value, if quoted */
	unquote(&val, end);
	*value = val;

	/* find end of key */
	end = key;
	while (*end)
		end++;

	/* strip trailing whitespace */
	if (end > key) {
		end--;
		while (isspace(*end))
			*end-- = 0;
	}

	/* strip any leading 'set ' */
	end = key;
	if (!strncmp(key, "set", 3))
		end += 3;

	/* check key, no spaces allowed */
	while (*end && isspace(*end))
		end++;
	key = end;
	while (*end && !isspace(*end))
		end++;
	if (*end != 0) {
		warnx("'%s=%s': not a valid identifier", key, val);
		return NULL;	/* invalid key */
	}

	return key;
}

/*
 * Sets, and makes a note of, all KEY=VALUE lines in a given .conf line
 * from finit.conf, or other .conf file.  Note, PATH is always reset in
 * the conf_reset_env() function.
 */
void legacy_parse_env(char *line)
{
	struct env_entry *node;
	char *key, *val;

	key = conf_parse_env(line, &val);
	if (!key)
		return;

	dbg("Global env '%s'='%s'", key, val);
	setenv(key, val, 1);

	node = malloc(sizeof(*node));
	if (!node) {
	nomem:
		err(1, "Out of memory cannot track env vars");
		return;
	}

	node->name = strdup(key);
	if (!node->name) {
		free(node);
		goto nomem;
	}

	TAILQ_INSERT_HEAD(&env_list, node, link);
}

static int kmod_exists(char *mod)
{
	char buf[256];
	int found = 0;
	FILE *fp;

	fp = fopen("/proc/modules", "r");
	if (!fp)
		return 0;

	while (!found && fgets(buf, sizeof(buf), fp)) {
		char *kmod = strtok(buf, " \t");

		if (kmod && !strcmp(kmod, mod))
			found = 1;
	}
	fclose(fp);

	return found;
}

void kmod_load(char *mod)
{
	char module[64] = { 0 };
	char cmd[CMD_SIZE];

	if (runlevel != INIT_LEVEL)
		return;

	/* Strip args for progress below and kmod_exists() */
	strlcpy(module, mod, sizeof(module));
	if (!strtok(module, " \t"))
		return;

	if (kmod_exists(module))
		return;

	strcpy(cmd, "modprobe ");
	strlcat(cmd, mod, sizeof(cmd));

	run_interactive(cmd, "Loading kernel module %s", module);
}

/* Convert optional "[!123456789S]" string into a bitmask */
int conf_parse_runlevels(char *runlevels)
{
	int i, not = 0, bitmask = 0;

	if (!runlevels)
		runlevels = "[234]";
	i = 1;
	while (i) {
		int level;
		char lvl = runlevels[i++];

		if (']' == lvl || 0 == lvl)
			break;
		if ('!' == lvl) {
			not = 1;
			bitmask = 0x7FE;
			continue;
		}

		if ('s' == lvl || 'S' == lvl)
			level = INIT_LEVEL;
		else
			level = lvl - '0';

		if (level > INIT_LEVEL || level < 0)
			continue;

		if (not)
			CLRBIT(bitmask, level);
		else
			SETBIT(bitmask, level);
	}

	return bitmask;
}

void conf_parse_cond(svc_t *svc, char *cond)
{
	size_t i = 0;
	char *ptr;
	char *c;

	if (!svc) {
		errx(1, "Invalid service pointer");
		return;
	}

	/* By default we assume UNIX daemons support SIGHUP */
	if (svc_is_daemon(svc))
		svc->sighup = 1;

	if (!cond) {
		memset(svc->cond, 0, sizeof(svc->cond));
		return;
	}

	/*
	 * First character must be '!' if:
	 *   - service:  SIGHUP is not supported
	 *   - run/task: Do not block bootstrap
	 */
	ptr = cond;
	if (ptr[i] == '!') {
		ptr++;

		if (svc_is_runtask(svc)) {
			/* see service_runtask_clean() */
			svc->sighup = 1;
			svc->once = 1;
		} else {
			svc->sighup = 0;
		}
	}

	while (ptr[i] != '>' && ptr[i] != 0)
		i++;
	ptr[i] = 0;

	if (i >= sizeof(svc->cond)) {
		logit(LOG_WARNING, "%s: too long list of conditions: %s", svc_ident(svc, NULL, 0), ptr);
		return;
	}

	/*
	 * The '~' prefix means a reload of the upstream service is
	 * propagated to this service -- it will be reloaded (SIGHUP)
	 * or restarted (noreload), not just paused and resumed.
	 * Syntax: <!~pid/foo,~pid/bar> or <~pid/foo>
	 *
	 * Strip '~' from each condition and set the service-level
	 * flag.  This allows '~' on any condition in the list.
	 */
	svc->cond[0] = 0;
	for (i = 0, c = strtok(ptr, ","); c; c = strtok(NULL, ","), i++) {
		if (c[0] == '~') {
			c++;
			svc->flux_reload = 1;
		}
		devmon_add_cond(c);
		if (i)
			strlcat(svc->cond, ",", sizeof(svc->cond));
		strlcat(svc->cond, c, sizeof(svc->cond));
	}
}

struct rlimit_name {
	char *name;
	int val;
};

static const struct rlimit_name rlimit_names[] = {
	{ "as",         RLIMIT_AS         },
	{ "core",       RLIMIT_CORE       },
	{ "cpu",        RLIMIT_CPU        },
	{ "data",       RLIMIT_DATA       },
	{ "fsize",      RLIMIT_FSIZE      },
	{ "locks",      RLIMIT_LOCKS      },
	{ "memlock",    RLIMIT_MEMLOCK    },
	{ "msgqueue",   RLIMIT_MSGQUEUE   },
	{ "nice",       RLIMIT_NICE       },
	{ "nofile",     RLIMIT_NOFILE     },
	{ "nproc",      RLIMIT_NPROC      },
	{ "rss",        RLIMIT_RSS        },
	{ "rtprio",     RLIMIT_RTPRIO     },
#ifdef RLIMIT_RTTIME
	{ "rttime",     RLIMIT_RTTIME     },
#endif
	{ "sigpending", RLIMIT_SIGPENDING },
	{ "stack",      RLIMIT_STACK      },

	{ NULL, 0 }
};

int str2rlim(char *str)
{
	const struct rlimit_name *rn;

	for (rn = rlimit_names; rn->name; rn++) {
		if (!strcmp(str, rn->name))
			return rn->val;
	}

	return -1;
}

char *rlim2str(int rlim)
{
	const struct rlimit_name *rn;

	for (rn = rlimit_names; rn->name; rn++) {
		if (rn->val == rlim)
			return rn->name;
	}

	return "unknown";
}

char *lim2str(struct rlimit *rlim)
{
	char tmp[25];
	static char buf[42];

	buf[0] = 0;
	if (RLIM_INFINITY == rlim->rlim_cur)
		snprintf(tmp, sizeof(tmp), "unlimited, ");
	else
		snprintf(tmp, sizeof(tmp), "%llu, ", (unsigned long long)rlim->rlim_cur);
	strlcat(buf, tmp, sizeof(buf));

	if (RLIM_INFINITY == rlim->rlim_max)
		snprintf(tmp, sizeof(tmp), "unlimited, ");
	else
		snprintf(tmp, sizeof(tmp), "%llu, ", (unsigned long long)rlim->rlim_max);
	strlcat(buf, tmp, sizeof(buf));

	return buf;
}

/* First form: `rlimit <hard|soft> RESOURCE LIMIT` */
void conf_parse_rlimit(char *line, struct rlimit arr[])
{
	char *level, *limit, *val;
	int resource = -1;
	rlim_t cfg;

	level = strtok(line, " \t");
	if (!level)
		goto error;

	limit = strtok(NULL, " \t");
	if (!limit)
		goto error;

	val = strtok(NULL, " \t");
	if (!val) {
		/* Second form: `rlimit RESOURCE LIMIT` */
		val   = limit;
		limit = level;
		level = "both";
	}

	resource = str2rlim(limit);
	if (resource < 0 || resource > RLIMIT_NLIMITS)
		goto error;

	/* Official keyword from v3.1 is `unlimited`, from prlimit(1) */
	if (!strcmp(val, "unlimited") || !strcmp(val, "infinity")) {
		cfg = RLIM_INFINITY;
	} else {
		const char *err = NULL;

		cfg = strtonum(val, 0, (long long)2 << 31, &err);
		if (err) {
			logit(LOG_WARNING, "rlimit: invalid %s value: %s",
			      rlim2str(resource), val);
			return;
		}
	}

	if (!strcmp(level, "soft"))
		arr[resource].rlim_cur = cfg;
	else if (!strcmp(level, "hard"))
		arr[resource].rlim_max = cfg;
	else if (!strcmp(level, "both"))
		arr[resource].rlim_max = arr[resource].rlim_cur = cfg;
	else
		goto error;

	return;
error:
	logit(LOG_WARNING, "rlimit: parse error");
}

/* cgroup NAME ctrl.prop:value,ctrl.prop:value ... */
static void conf_parse_cgroup(char *line)
{
	char config[strlen(line) + 1];
	char *ptr, *name;

	name = strtok(line, " \t");
	if (!name)
		return;

	if (strstr(name, "..") || strchr(name, '/'))
		return;		/* illegal */

	config[0] = 0;
	while ((ptr = strtok(NULL, " \t"))) {
		if (config[0])
			strlcat(config, ",", sizeof(config));
		strlcat(config, ptr, sizeof(config));
	}

	cgroup_add(name, config, 0);
}

static int parse_static(char *line, int is_rcsd)
{
	char cmd[CMD_SIZE];
	char *x;

	if (BOOTSTRAP && (MATCH_CMD(line, "host ", x) || MATCH_CMD(line, "hostname ", x))) {
		if (hostname) free(hostname);
		hostname = strdup(strip_line(x));
		return 0;
	}

	if (BOOTSTRAP && MATCH_CMD(line, "mknod ", x)) {
		char *dev = strip_line(x);

		strcpy(cmd, "mknod ");
		strlcat(cmd, dev, sizeof(cmd));
		run_interactive(cmd, "Creating device node %s", dev);
		return 0;
	}

	/* Kernel module to load */
	if (BOOTSTRAP && MATCH_CMD(line, "module ", x)) {
		kmod_load(strip_line(x));
		return 0;
	}

	if (BOOTSTRAP && MATCH_CMD(line, "network ", x)) {
		if (network) free(network);
		network = strdup(strip_line(x));
		return 0;
	}

	if (BOOTSTRAP && MATCH_CMD(line, "rcsd ", x)) {
		if (finit_rcsd) free(finit_rcsd);
		finit_rcsd = strdup(strip_line(x));
		return 0;
	}

	if (BOOTSTRAP && MATCH_CMD(line, "runparts ", x)) {
		if (runparts) free(runparts);
		runparts_progress = runparts_sysv = 0;
		while (x) {
			if (MATCH_CMD(x, "progress", x))
				runparts_progress = 1;
			else if (MATCH_CMD(x, "sysv", x))
				runparts_sysv = 1;
			else
				break;
		}
		runparts = strdup(strip_line(x));
		return 0;
	}

	if (BOOTSTRAP && MATCH_CMD(line, "set ", x)) {
		legacy_parse_env(x);
		return 0;
	}

	if (MATCH_CMD(line, "include ", x)) {
		char *file = strip_line(x);

		strlcpy(cmd, file, sizeof(cmd));
		if (!fexist(cmd)) {
			errx(1, "Cannot find include file %s, absolute path required!", x);
			return 1;
		}

		return conf_parse_file(cmd, is_rcsd);
	}

	if (MATCH_CMD(line, "log ", x)) {
		char *tok;
		static int size = 200000, count = 5;

		tok = strtok(x, ":= ");
		while (tok) {
			if (!strncmp(tok, "size", 4))
				size = strtobytes(strtok(NULL, ":= "));
			else if (!strncmp(tok, "count", 5))
				count = strtobytes(strtok(NULL, ":= "));

			tok = strtok(NULL, ":= ");
		}

		if (size >= 0)
			logfile_size_max = size;
		if (count >= 0)
			logfile_count_max = count;

		return 0;
	}

	if (MATCH_CMD(line, "shutdown ", x)) {
		if (sdown) free(sdown);
		sdown = strdup(strip_line(x));
		return 0;
	}

	/*
	 * The desired runlevel to start when leaving bootstrap (S).
	 * Finit supports 1-9, but most systems only use 1-6, where
	 * 6 is reserved for reboot and 0 for halt/poweroff.
	 */
	if (BOOTSTRAP && MATCH_CMD(line, "runlevel ", x)) {
		char *token = strip_line(x);
		const char *err = NULL;

		cfglevel = strtonum(token, 1, 9, &err);
		if (err)
			cfglevel = RUNLEVEL;
		if (cfglevel < 1 || cfglevel > 9 || cfglevel == 6)
			cfglevel = 2; /* Fallback */
		return 0;
	}

	/*
	 * Before Finit 5 the default readiness notification is PID.
	 * This default can be changed by setting 'readiness none' in
	 * the file /etc/finit.conf, only read once at bootstrap.
	 */
	if (BOOTSTRAP && MATCH_CMD(line, "readiness ", x)) {
		char *token = strip_line(x);

		if (!strcmp(token, "none"))
			readiness = SVC_NOTIFY_NONE;
	}

	if (MATCH_CMD(line, "reboot-delay ", x)) {
		syncsec = strtonum(strip_line(x), 0, 60, NULL);
		return 0;
	}

	if (MATCH_CMD(line, "reboot-watchdog ", x)) {
		wdtreboot = get_bool(strip_line(x), 0);
		return 0;
	}

	/*
	 * Periodic check and instability index leveler, seconds
	 */
	if (MATCH_CMD(line, "service-interval ", x)) {
		char *token = strip_line(x);
		const char *err = NULL;
		int val;

		/* 0 min to 1 day, should check at least daily */
		val = strtonum(token, 0, 1440, &err);
		if (!err) {
			int disabled = !service_interval;

			service_interval = val * 1000; /* to milliseconds */
			if (disabled)
				service_init(NULL);
		}
		return 0;
	}

	return 1;
}

static int parse_dynamic(char *line, struct rlimit rlimit[], char *file)
{
	char *x;

	/* Monitored daemon, will be respawned on exit */
	if (MATCH_CMD(line, "service ", x)) {
		service_register(SVC_TYPE_SERVICE, x, rlimit, file);
		return 0;
	}

	/* One-shot task, will not be respawned */
	if (MATCH_CMD(line, "task ", x)) {
		service_register(SVC_TYPE_TASK, x, rlimit, file);
		return 0;
	}

	/* Like task but waits for completion, useful w/ [S] */
	if (MATCH_CMD(line, "run ", x)) {
		service_register(SVC_TYPE_RUN, x, rlimit, file);
		return 0;
	}

	/* Similar to task but is treated like a SysV init script */
	if (MATCH_CMD(line, "sysv ", x)) {
		service_register(SVC_TYPE_SYSV, x, rlimit, file);
		return 0;
	}

	/* Read resource limits */
	if (MATCH_CMD(line, "rlimit ", x)) {
		conf_parse_rlimit(x, rlimit);
		return 0;
	}

	/* Read control group limits */
	if (MATCH_CMD(line, "cgroup ", x)) {
		conf_parse_cgroup(x);
		return 0;
	}

	/* Set current cgroup for the following services/run/tasks */
	if (MATCH_CMD(line, "cgroup.", x)) {
		char *group, *token, *saveptr;
		char settings[128] = {0};

		/* Reset cgroup state */
		cgroup_settings_current[0] = '\0';
		cgroup_delegate_current = 0;

		/* First token is the group name (system/user/init) */
		group = strtok_r(x, ",", &saveptr);
		if (group)
			strlcpy(cgroup_current, group, sizeof(cgroup_current));
		else
			strlcpy(cgroup_current, x, sizeof(cgroup_current));

		/* Parse any remaining comma-separated options */
		while ((token = strtok_r(NULL, ",", &saveptr)) != NULL) {
			if (strncmp(token, "name:", 5) == 0) {
				/* Cgroup leaf name override - only valid in per-service directives */
				warnx("cgroup %s: name: option not valid in global directive!", group);
			} else if (strcmp(token, "delegate") == 0) {
				cgroup_delegate_current = 1;
			} else {
				/* Other settings (cpu.weight:500, memory.max:1G, etc.) */
				if (settings[0])
					strlcat(settings, ",", sizeof(settings));
				strlcat(settings, token, sizeof(settings));
			}
		}

		if (settings[0])
			strlcpy(cgroup_settings_current, settings, sizeof(cgroup_settings_current));

		return 0;
	}

	/* Regular or serial TTYs to run getty */
	if (MATCH_CMD(line, "tty ", x)) {
		service_register(SVC_TYPE_TTY, strip_line(x), rlimit, file);
		return 0;
	}

	return 1;
}

/*
 * Very simple and crude implementation, only supports '%i'
 */
static char *instantiate(char *line, char *name)
{
	char *ptr, *end = strchr(line, 0);
	char *pos = line;
	size_t num = 0;

	if (!name[0] || !end)
		return line;

	while ((ptr = strchr(pos, '%'))) {
		num++;
		pos++;
	}

	ptr = realloc(line, strlen(line) + num * strlen(name) + 1);
	if (!ptr)
		return line;

	pos = line = ptr;
	while ((ptr = strchr(pos, '%'))) {
		if (!strncmp(ptr, "%i", 2)) {
			char *rest = &ptr[2];
			char *next = ptr + strlen(name);

			memmove(next, rest, strlen(rest) + 1);
			memcpy(ptr, name, strlen(name));

			pos += strlen(name);
		} else
			pos++;
	}

	return line;
}

static int is_template(const char *file, char *name, size_t len)
{
	char *ptr, *nm;
	size_t i = 0;

	ptr = strchr(file, '@');
	if (!ptr)
		return 0;	/* not a template */

	nm = ptr + 1;
	ptr = strstr(nm, ".conf");
	if (!strcmp(nm, ".conf") || !ptr)
		return 1;	/* template itself or invalid */

	while (nm < ptr && i < len - 1)
		name[i++] = *nm++;
	name[i] = 0;

	return 1;		/* instantiated template */
}

int legacy_parse_conf(char *file, int is_rcsd)
{
	struct rlimit rlimit[RLIMIT_NLIMITS];
	char name[65] = { 0 };
	FILE *fp;

	if (is_template(file, name, sizeof(name))) {
		if (!name[0]) {
			dbg("*** Skipping template file %s", file);
			return 0;
		}
		dbg("*** instantiating %s from %s ...", name, file);
	}

	fp = fopen(file, "r");
	if (!fp)
		return 1;

	/* Prepare default limits and group for each service in /etc/finit.d/ */
	if (is_rcsd) {
		memcpy(rlimit, global_rlimit, sizeof(rlimit));
		cgroup_current[0] = 0;
	}

	dbg("*** Parsing %s", file);
	while (!feof(fp)) {
		char *line;

		line = fparseln(fp, NULL, NULL, NULL, FPARSELN_UNESCCOMM);
		if (!line)
			continue;

		tabstospaces(line);
//		dbg("raw: %s", line);
		line = instantiate(line, name);
//		dbg("ins: %s", line);

		if (!parse_static(line, is_rcsd))
			;
		else if (!parse_dynamic(line, is_rcsd ? rlimit : global_rlimit, file))
			;
		else
			legacy_parse_env(line);

		free(line);
	}

	fclose(fp);

	return 0;
}

/**
 * Local Variables:
 *  indent-tabs-mode: t
 *  c-file-style: "linux"
 * End:
 */