config.c

/* config.c - configuration file handling routines */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 1998-2020 The OpenLDAP Foundation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of Michigan at Ann Arbor. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 */

#include "portable.h"

#include <stdio.h>

#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/signal.h>
#include <ac/socket.h>
#include <ac/errno.h>
#include <ac/unistd.h>

#include <sys/types.h>
#include <sys/stat.h>

#ifndef S_ISREG
#define	S_ISREG(m)	(((m) & _S_IFMT) == _S_IFREG)
#endif

#include "slap.h"
#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
#endif
#include "lutil.h"
#include "lutil_ldap.h"
#include "ldif.h"
#include "config.h"

#ifdef _WIN32
#define	LUTIL_ATOULX	lutil_atoullx
#define	Z	"I"
#else
#define	LUTIL_ATOULX	lutil_atoulx
#define	Z	"z"
#endif

#define ARGS_STEP	512

/*
 * defaults for various global variables
 */
slap_mask_t		global_allows = 0;
slap_mask_t		global_disallows = 0;
int		global_gentlehup = 0;
int		global_idletimeout = 0;
int		global_writetimeout = 0;
char	*global_host = NULL;
struct berval global_host_bv = BER_BVNULL;
char	*global_realm = NULL;
char	*sasl_host = NULL;
char	*sasl_cbinding = NULL;
char		**default_passwd_hash = NULL;
struct berval default_search_base = BER_BVNULL;
struct berval default_search_nbase = BER_BVNULL;

ber_len_t sockbuf_max_incoming = SLAP_SB_MAX_INCOMING_DEFAULT;
ber_len_t sockbuf_max_incoming_auth= SLAP_SB_MAX_INCOMING_AUTH;

int	slap_conn_max_pending = SLAP_CONN_MAX_PENDING_DEFAULT;
int	slap_conn_max_pending_auth = SLAP_CONN_MAX_PENDING_AUTH;

char   *slapd_pid_file  = NULL;
char   *slapd_args_file = NULL;

int use_reverse_lookup = 0;

#ifdef LDAP_SLAPI
int slapi_plugins_used = 0;
#endif

static int fp_getline(FILE *fp, ConfigArgs *c);
static void fp_getline_init(ConfigArgs *c);

static char	*strtok_quote(char *line, char *sep, char **quote_ptr, int *inquote);
static char *strtok_quote_ldif(char **line);

ConfigArgs *
new_config_args( BackendDB *be, const char *fname, int lineno, int argc, char **argv )
{
	ConfigArgs *c;
	c = ch_calloc( 1, sizeof( ConfigArgs ) );
	if ( c == NULL ) return(NULL);
	c->be     = be; 
	c->fname  = fname;
	c->argc   = argc;
	c->argv   = argv; 
	c->lineno = lineno;
	snprintf( c->log, sizeof( c->log ), "%s: line %d", fname, lineno );
	return(c);
}

void
init_config_argv( ConfigArgs *c )
{
	c->argv = ch_calloc( ARGS_STEP + 1, sizeof( *c->argv ) );
	c->argv_size = ARGS_STEP + 1;
}

ConfigTable *config_find_keyword(ConfigTable *Conf, ConfigArgs *c) {
	int i;

	for(i = 0; Conf[i].name; i++)
		if( (Conf[i].length && (!strncasecmp(c->argv[0], Conf[i].name, Conf[i].length))) ||
			(!strcasecmp(c->argv[0], Conf[i].name)) ) break;
	if ( !Conf[i].name ) return NULL;
	if (( Conf[i].arg_type & ARGS_TYPES ) == ARG_BINARY ) {
		size_t decode_len = LUTIL_BASE64_DECODE_LEN(c->linelen);
		ch_free( c->tline );
		c->tline = ch_malloc( decode_len+1 );
		c->linelen = lutil_b64_pton( c->line, c->tline, decode_len );
		if ( c->linelen < 0 )
		{
			ch_free( c->tline );
			c->tline = NULL;
			return NULL;
		}
		c->line = c->tline;
	}
	return Conf+i;
}

int config_check_vals(ConfigTable *Conf, ConfigArgs *c, int check_only ) {
	int rc, arg_user, arg_type, arg_syn, iarg;
	unsigned uiarg;
	long larg;
	size_t ularg;
	ber_len_t barg;
	
	if(Conf->arg_type == ARG_IGNORED) {
		Debug(LDAP_DEBUG_CONFIG, "%s: keyword <%s> ignored\n",
			c->log, Conf->name );
		return(0);
	}
	arg_type = Conf->arg_type & ARGS_TYPES;
	arg_user = Conf->arg_type & ARGS_USERLAND;
	arg_syn = Conf->arg_type & ARGS_SYNTAX;

	if((arg_type == ARG_DN) && c->argc == 1) {
		c->argc = 2;
		c->argv[1] = "";
	}
	if(Conf->min_args && (c->argc < Conf->min_args)) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> missing <%s> argument",
			c->argv[0], Conf->what ? Conf->what : "" );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: keyword %s\n", c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	if(Conf->max_args && (c->argc > Conf->max_args)) {
		char	*ignored = " ignored";

		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> extra cruft after <%s>",
			c->argv[0], Conf->what );

		ignored = "";
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s%s.\n",
				c->log, c->cr_msg, ignored );
		return(ARG_BAD_CONF);
	}
	if((arg_syn & ARG_DB) && !c->be) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> only allowed within database declaration",
			c->argv[0] );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: keyword %s\n",
			c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	if((arg_syn & ARG_PRE_BI) && c->bi) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> must occur before any backend %sdeclaration",
			c->argv[0], (arg_syn & ARG_PRE_DB) ? "or database " : "" );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: keyword %s\n",
			c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	if((arg_syn & ARG_PRE_DB) && c->be && c->be != frontendDB) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> must occur before any database declaration",
			c->argv[0] );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: keyword %s\n",
			c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	if((arg_syn & ARG_PAREN) && *c->argv[1] != '(' /*')'*/) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> old format not supported", c->argv[0] );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
			c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	if(arg_type && !Conf->arg_item && !(arg_syn & ARG_OFFSET)) {
		snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid config_table, arg_item is NULL",
			c->argv[0] );
		Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
			c->log, c->cr_msg );
		return(ARG_BAD_CONF);
	}
	c->type = arg_user;
	memset(&c->values, 0, sizeof(c->values));
	if(arg_type == ARG_STRING) {
		assert( c->argc == 2 );
		if ( !check_only )
			c->value_string = ch_strdup(c->argv[1]);
	} else if(arg_type == ARG_BERVAL) {
		assert( c->argc == 2 );
		if ( !check_only )
			ber_str2bv( c->argv[1], 0, 1, &c->value_bv );
	} else if(arg_type == ARG_BINARY) {
		assert( c->argc == 2 );
		if ( !check_only ) {
			c->value_bv.bv_len = c->linelen;
			c->value_bv.bv_val = ch_malloc( c->linelen );
			AC_MEMCPY( c->value_bv.bv_val, c->line, c->linelen );
		}
	} else if(arg_type == ARG_DN) {
		struct berval bv;
		assert( c->argc == 2 );
		ber_str2bv( c->argv[1], 0, 0, &bv );
		rc = dnPrettyNormal( NULL, &bv, &c->value_dn, &c->value_ndn, NULL );
		if ( rc != LDAP_SUCCESS ) {
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid DN %d (%s)",
				c->argv[0], rc, ldap_err2string( rc ));
			Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n" , c->log, c->cr_msg );
			return(ARG_BAD_CONF);
		}
		if ( check_only ) {
			ch_free( c->value_ndn.bv_val );
			ch_free( c->value_dn.bv_val );
		}
	} else if(arg_type == ARG_ATDESC) {
		const char *text = NULL;
		assert( c->argc == 2 );
		c->value_ad = NULL;
		rc = slap_str2ad( c->argv[1], &c->value_ad, &text );
		if ( rc != LDAP_SUCCESS ) {
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid AttributeDescription %d (%s)",
				c->argv[0], rc, text );
			Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n" , c->log, c->cr_msg );
			return(ARG_BAD_CONF);
		}
	} else {	/* all numeric */
		int j;
		iarg = 0; larg = 0; barg = 0;
		switch(arg_type) {
			case ARG_INT:
				assert( c->argc == 2 );
				if ( lutil_atoix( &iarg, c->argv[1], 0 ) != 0 ) {
					snprintf( c->cr_msg, sizeof( c->cr_msg ),
						"<%s> unable to parse \"%s\" as int",
						c->argv[0], c->argv[1] );
					Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				break;
			case ARG_UINT:
				assert( c->argc == 2 );
				if ( lutil_atoux( &uiarg, c->argv[1], 0 ) != 0 ) {
					snprintf( c->cr_msg, sizeof( c->cr_msg ),
						"<%s> unable to parse \"%s\" as unsigned int",
						c->argv[0], c->argv[1] );
					Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				break;
			case ARG_LONG:
				assert( c->argc == 2 );
				if ( lutil_atolx( &larg, c->argv[1], 0 ) != 0 ) {
					snprintf( c->cr_msg, sizeof( c->cr_msg ),
						"<%s> unable to parse \"%s\" as long",
						c->argv[0], c->argv[1] );
					Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				break;
			case ARG_ULONG:
				assert( c->argc == 2 );
				if ( LUTIL_ATOULX( &ularg, c->argv[1], 0 ) != 0 ) {
					snprintf( c->cr_msg, sizeof( c->cr_msg ),
						"<%s> unable to parse \"%s\" as unsigned long",
						c->argv[0], c->argv[1] );
					Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				break;
			case ARG_BER_LEN_T: {
				unsigned long	l;
				assert( c->argc == 2 );
				if ( lutil_atoulx( &l, c->argv[1], 0 ) != 0 ) {
					snprintf( c->cr_msg, sizeof( c->cr_msg ),
						"<%s> unable to parse \"%s\" as ber_len_t",
						c->argv[0], c->argv[1] );
					Debug(LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				barg = (ber_len_t)l;
				} break;
			case ARG_ON_OFF:
				/* note: this is an explicit exception
				 * to the "need exactly 2 args" rule */
				if (c->argc == 1) {
					iarg = 1;
				} else if ( !strcasecmp(c->argv[1], "on") ||
					!strcasecmp(c->argv[1], "true") ||
					!strcasecmp(c->argv[1], "yes") )
				{
					iarg = 1;
				} else if ( !strcasecmp(c->argv[1], "off") ||
					!strcasecmp(c->argv[1], "false") ||
					!strcasecmp(c->argv[1], "no") )
				{
					iarg = 0;
				} else {
					snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid value",
						c->argv[0] );
					Debug(LDAP_DEBUG_ANY|LDAP_DEBUG_NONE, "%s: %s\n",
						c->log, c->cr_msg );
					return(ARG_BAD_CONF);
				}
				break;
		}
		j = (arg_type & ARG_NONZERO) ? 1 : 0;
		if(iarg < j && larg < j && barg < (unsigned)j ) {
			larg = larg ? larg : (barg ? (long)barg : iarg);
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid value",
				c->argv[0] );
			Debug(LDAP_DEBUG_ANY|LDAP_DEBUG_NONE, "%s: %s\n",
				c->log, c->cr_msg );
			return(ARG_BAD_CONF);
		}
		switch(arg_type) {
			case ARG_ON_OFF:
			case ARG_INT:		c->value_int = iarg;		break;
			case ARG_UINT:		c->value_uint = uiarg;		break;
			case ARG_LONG:		c->value_long = larg;		break;
			case ARG_ULONG:		c->value_ulong = ularg;		break;
			case ARG_BER_LEN_T:	c->value_ber_t = barg;		break;
		}
	}
	return 0;
}

int config_set_vals(ConfigTable *Conf, ConfigArgs *c) {
	int rc, arg_type;
	void *ptr = NULL;

	arg_type = Conf->arg_type;
	if(arg_type & ARG_MAGIC) {
		if(!c->be) c->be = frontendDB;
		c->cr_msg[0] = '\0';
		rc = (*((ConfigDriver*)Conf->arg_item))(c);
#if 0
		if(c->be == frontendDB) c->be = NULL;
#endif
		if(rc) {
			if ( !c->cr_msg[0] ) {
				snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> handler exited with %d",
					c->argv[0], rc );
				Debug(LDAP_DEBUG_CONFIG, "%s: %s!\n",
					c->log, c->cr_msg );
			}
			return(ARG_BAD_CONF);
		}
		return(0);
	}
	if(arg_type & ARG_OFFSET) {
		if (c->be && c->table == Cft_Database)
			ptr = c->be->be_private;
		else if (c->bi)
			ptr = c->bi->bi_private;
		else {
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> offset is missing base pointer",
				c->argv[0] );
			Debug(LDAP_DEBUG_CONFIG, "%s: %s!\n",
				c->log, c->cr_msg );
			return(ARG_BAD_CONF);
		}
		ptr = (void *)((char *)ptr + (long)Conf->arg_item);
	} else if (arg_type & ARGS_TYPES) {
		ptr = Conf->arg_item;
	}
	if(arg_type & ARGS_TYPES)
		switch(arg_type & ARGS_TYPES) {
			case ARG_ON_OFF:
			case ARG_INT: 		*(int*)ptr = c->value_int;			break;
			case ARG_UINT: 		*(unsigned*)ptr = c->value_uint;			break;
			case ARG_LONG:  	*(long*)ptr = c->value_long;			break;
			case ARG_ULONG:  	*(size_t*)ptr = c->value_ulong;			break;
			case ARG_BER_LEN_T: 	*(ber_len_t*)ptr = c->value_ber_t;			break;
			case ARG_STRING: {
				char *cc = *(char**)ptr;
				if(cc) {
					if ((arg_type & ARG_UNIQUE) && c->op == SLAP_CONFIG_ADD ) {
						Debug(LDAP_DEBUG_CONFIG, "%s: already set %s!\n",
							c->log, Conf->name );
						return(ARG_BAD_CONF);
					}
					ch_free(cc);
				}
				*(char **)ptr = c->value_string;
				break;
				}
			case ARG_BERVAL:
			case ARG_BINARY:
				*(struct berval *)ptr = c->value_bv;
				break;
			case ARG_ATDESC:
				*(AttributeDescription **)ptr = c->value_ad;
				break;
		}
	return(0);
}

int config_add_vals(ConfigTable *Conf, ConfigArgs *c) {
	int rc, arg_type;

	arg_type = Conf->arg_type;
	if(arg_type == ARG_IGNORED) {
		Debug(LDAP_DEBUG_CONFIG, "%s: keyword <%s> ignored\n",
			c->log, Conf->name );
		return(0);
	}
	rc = config_check_vals( Conf, c, 0 );
	if ( rc ) return rc;
	return config_set_vals( Conf, c );
}

int
config_del_vals(ConfigTable *cf, ConfigArgs *c)
{
	int rc = 0;

	/* If there is no handler, just ignore it */
	if ( cf->arg_type & ARG_MAGIC ) {
		c->argv[0] = cf->ad->ad_cname.bv_val;
		c->op = LDAP_MOD_DELETE;
		c->type = cf->arg_type & ARGS_USERLAND;
		rc = (*((ConfigDriver*)cf->arg_item))(c);
	}
	return rc;
}

int
config_get_vals(ConfigTable *cf, ConfigArgs *c)
{
	int rc = 0;
	struct berval bv;
	void *ptr;

	if ( cf->arg_type & ARG_IGNORED ) {
		return 1;
	}

	memset(&c->values, 0, sizeof(c->values));
	c->rvalue_vals = NULL;
	c->rvalue_nvals = NULL;
	c->op = SLAP_CONFIG_EMIT;
	c->type = cf->arg_type & ARGS_USERLAND;

	if ( cf->arg_type & ARG_MAGIC ) {
		rc = (*((ConfigDriver*)cf->arg_item))(c);
		if ( rc ) return rc;
	} else {
		if ( cf->arg_type & ARG_OFFSET ) {
			if (c->be && c->table == Cft_Database)
				ptr = c->be->be_private;
			else if ( c->bi )
				ptr = c->bi->bi_private;
			else
				return 1;
			ptr = (void *)((char *)ptr + (long)cf->arg_item);
		} else {
			ptr = cf->arg_item;
		}
		
		switch(cf->arg_type & ARGS_TYPES) {
		case ARG_ON_OFF:
		case ARG_INT:	c->value_int = *(int *)ptr; break;
		case ARG_UINT:	c->value_uint = *(unsigned *)ptr; break;
		case ARG_LONG:	c->value_long = *(long *)ptr; break;
		case ARG_ULONG:	c->value_ulong = *(size_t *)ptr; break;
		case ARG_BER_LEN_T:	c->value_ber_t = *(ber_len_t *)ptr; break;
		case ARG_STRING:
			if ( *(char **)ptr )
				c->value_string = ch_strdup(*(char **)ptr);
			break;
		case ARG_BERVAL:
			c->value_bv = *((struct berval *)ptr); break;
		case ARG_ATDESC:
			c->value_ad = *(AttributeDescription **)ptr; break;
		}
	}
	if ( cf->arg_type & ARGS_TYPES) {
		bv.bv_len = 0;
		bv.bv_val = c->log;
		switch(cf->arg_type & ARGS_TYPES) {
		case ARG_INT: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%d", c->value_int); break;
		case ARG_UINT: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%u", c->value_uint); break;
		case ARG_LONG: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%ld", c->value_long); break;
		case ARG_ULONG: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%" Z "u", c->value_ulong); break;
		case ARG_BER_LEN_T: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%ld", c->value_ber_t); break;
		case ARG_ON_OFF: bv.bv_len = snprintf(bv.bv_val, sizeof( c->log ), "%s",
			c->value_int ? "TRUE" : "FALSE"); break;
		case ARG_STRING:
			if ( c->value_string && c->value_string[0]) {
				ber_str2bv( c->value_string, 0, 0, &bv);
			} else {
				return 1;
			}
			break;
		case ARG_BERVAL:
			if ( !BER_BVISEMPTY( &c->value_bv )) {
				bv = c->value_bv;
			} else {
				return 1;
			}
			break;
		case ARG_ATDESC:
			if ( c->value_ad ) {
				bv = c->value_ad->ad_cname;
			} else {
				return 1;
			}
			break;
		default:
			bv.bv_val = NULL;
			break;
		}
		if (bv.bv_val == c->log && bv.bv_len >= sizeof( c->log ) ) {
			return 1;
		}
		if (( cf->arg_type & ARGS_TYPES ) == ARG_STRING ) {
			ber_bvarray_add(&c->rvalue_vals, &bv);
		} else if ( !BER_BVISNULL( &bv ) ) {
			value_add_one(&c->rvalue_vals, &bv);
		}
		/* else: maybe c->rvalue_vals already set? */
	}
	return rc;
}

int
config_push_cleanup(ConfigArgs *ca, ConfigDriver *cleanup)
{
	int i;
	/* silently ignore redundant push */
	for (i=0; i < ca->num_cleanups; i++) {
		if ( ca->cleanups[i] == cleanup )
			return 0;
	}

	if (ca->num_cleanups >= SLAP_CONFIG_CLEANUP_MAX)
		return -1;
	ca->cleanups[ca->num_cleanups++] = cleanup;
	return 0;
}

int
config_run_cleanup(ConfigArgs *ca)
{
	int i, rc = 0;

	for (i=0; i < ca->num_cleanups; i++) {
		rc = ca->cleanups[i](ca);
		if (rc)
			break;
	}
	return rc;
}

int
init_config_attrs(ConfigTable *ct) {
	int i, code;

	for (i=0; ct[i].name; i++ ) {
		if ( !ct[i].attribute ) continue;
		code = register_at( ct[i].attribute, &ct[i].ad, 1 );
		if ( code ) {
			fprintf( stderr, "init_config_attrs: register_at failed\n" );
			return code;
		}
		if (( ct[i].arg_type & ARGS_TYPES ) == ARG_BINARY ) {
			ldif_must_b64_encode_register( ct[i].ad->ad_cname.bv_val,
				ct[i].ad->ad_type->sat_oid );
		}
	}

	return 0;
}

int
init_config_ocs( ConfigOCs *ocs ) {
	int i, code;

	for (i=0;ocs[i].co_def;i++) {
		code = register_oc( ocs[i].co_def, &ocs[i].co_oc, 1 );
		if ( code ) {
			fprintf( stderr, "init_config_ocs: register_oc failed\n" );
			return code;
		}
	}
	return 0;
}

/* Split an LDIF line into space-separated tokens. Words may be grouped
 * by quotes. A quoted string may begin in the middle of a word, but must
 * end at the end of the word (be followed by whitespace or EOS). Any other
 * quotes are passed through unchanged. All other characters are passed
 * through unchanged.
 */
static char *
strtok_quote_ldif( char **line )
{
	char *beg, *ptr, *quote=NULL;
	int inquote=0;

	ptr = *line;

	if ( !ptr || !*ptr )
		return NULL;

	while( isspace( (unsigned char) *ptr )) ptr++;

	if ( *ptr == '"' ) {
		inquote = 1;
		ptr++;
	}

	beg = ptr;

	for (;*ptr;ptr++) {
		if ( *ptr == '"' ) {
			if ( inquote && ( !ptr[1] || isspace((unsigned char) ptr[1]))) {
				*ptr++ = '\0';
				break;
			}
			inquote = 1;
			quote = ptr;
			continue;
		}
		if ( inquote )
			continue;
		if ( isspace( (unsigned char) *ptr )) {
			*ptr++ = '\0';
			break;
		}
	}
	if ( quote ) {
		while ( quote < ptr ) {
			*quote = quote[1];
			quote++;
		}
	}
	if ( !*ptr ) {
		*line = NULL;
	} else {
		while ( isspace( (unsigned char) *ptr )) ptr++;
		*line = ptr;
	}
	return beg;
}

void
config_parse_ldif( ConfigArgs *c )
{
	char *next;
	c->tline = ch_strdup(c->line);
	next = c->tline;

	while ((c->argv[c->argc] = strtok_quote_ldif( &next )) != NULL) {
		c->argc++;
		if ( c->argc >= c->argv_size ) {
			char **tmp = ch_realloc( c->argv, (c->argv_size + ARGS_STEP) *
				sizeof( *c->argv ));
			c->argv = tmp;
			c->argv_size += ARGS_STEP;
		}
	}
	c->argv[c->argc] = NULL;
}

int
config_parse_vals(ConfigTable *ct, ConfigArgs *c, int valx)
{
	int 	rc = 0;
	int arg_type = ct->arg_type & ARGS_TYPES;

	snprintf( c->log, sizeof( c->log ), "%s: value #%d",
		ct->ad->ad_cname.bv_val, valx );
	c->argc = 1;
	c->argv[0] = ct->ad->ad_cname.bv_val;

	if ( (( ct->arg_type & ARG_QUOTE ) && c->line[ 0 ] != '"' ) ||
		(arg_type == ARG_BERVAL || arg_type == ARG_BINARY)) {
		c->argv[c->argc] = c->line;
		c->argc++;
		c->argv[c->argc] = NULL;
		c->tline = NULL;
	} else {
		config_parse_ldif( c );
	}
	rc = config_check_vals( ct, c, 1 );
	ch_free( c->tline );
	c->tline = NULL;

	if ( rc )
		rc = LDAP_CONSTRAINT_VIOLATION;

	return rc;
}

int
config_parse_add(ConfigTable *ct, ConfigArgs *c, int valx)
{
	int	rc = 0;
	int arg_type = ct->arg_type & ARGS_TYPES;

	snprintf( c->log, sizeof( c->log ), "%s: value #%d",
		ct->ad->ad_cname.bv_val, valx );
	c->argc = 1;
	c->argv[0] = ct->ad->ad_cname.bv_val;

	if ( (( ct->arg_type & ARG_QUOTE ) && c->line[ 0 ] != '"' ) ||
		(arg_type == ARG_BERVAL || arg_type == ARG_BINARY)) {
		c->argv[c->argc] = c->line;
		c->argc++;
		c->argv[c->argc] = NULL;
		c->tline = NULL;
	} else {
		config_parse_ldif( c );
	}
	c->op = LDAP_MOD_ADD;
	rc = config_add_vals( ct, c );
	ch_free( c->tline );

	return rc;
}

int
read_config_file(const char *fname, int depth, ConfigArgs *cf, ConfigTable *cft)
{
	FILE *fp;
	ConfigTable *ct;
	ConfigArgs *c;
	int rc;
	struct stat s;

	c = ch_calloc( 1, sizeof( ConfigArgs ) );
	if ( c == NULL ) {
		return 1;
	}

	if ( depth ) {
		memcpy( c, cf, sizeof( ConfigArgs ) );
	} else {
		c->depth = depth; /* XXX */
		c->bi = NULL;
		c->be = NULL;
	}

	c->valx = -1;
	c->fname = fname;
	init_config_argv( c );

	if ( stat( fname, &s ) != 0 ) {
		ldap_syslog = 1;
		Debug(LDAP_DEBUG_ANY,
		    "could not stat config file \"%s\": %s (%d)\n",
		    fname, strerror(errno), errno);
		ch_free( c->argv );
		ch_free( c );
		return(1);
	}

	if ( !S_ISREG( s.st_mode ) ) {
		ldap_syslog = 1;
		Debug(LDAP_DEBUG_ANY,
		    "regular file expected, got \"%s\"\n",
		    fname );
		ch_free( c->argv );
		ch_free( c );
		return(1);
	}

	fp = fopen( fname, "r" );
	if ( fp == NULL ) {
		ldap_syslog = 1;
		Debug(LDAP_DEBUG_ANY,
		    "could not open config file \"%s\": %s (%d)\n",
		    fname, strerror(errno), errno);
		ch_free( c->argv );
		ch_free( c );
		return(1);
	}

	Debug(LDAP_DEBUG_CONFIG, "reading config file %s\n", fname );

	fp_getline_init(c);

	c->tline = NULL;

	while ( fp_getline( fp, c ) ) {
		/* skip comments and blank lines */
		if ( c->line[0] == '#' || c->line[0] == '\0' ) {
			continue;
		}

		snprintf( c->log, sizeof( c->log ), "%s: line %d",
				c->fname, c->lineno );

		c->argc = 0;
		ch_free( c->tline );
		if ( config_fp_parse_line( c ) ) {
			rc = 1;
			goto done;
		}

		if ( c->argc < 1 ) {
			Debug( LDAP_DEBUG_ANY, "%s: bad config line.\n",
				c->log );
			rc = 1;
			goto done;
		}

		c->op = SLAP_CONFIG_ADD;