mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
779 lines
15 KiB
C
779 lines
15 KiB
C
/* decode.c - ber input decoding routines */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
/* Portions
|
|
* Copyright (c) 1990 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/stdlib.h>
|
|
|
|
#include <ac/stdarg.h>
|
|
#include <ac/string.h>
|
|
#include <ac/socket.h>
|
|
|
|
#include "lber-int.h"
|
|
|
|
static ber_len_t ber_getnint LDAP_P((
|
|
BerElement *ber,
|
|
ber_int_t *num,
|
|
ber_len_t len ));
|
|
|
|
/* return the tag - LBER_DEFAULT returned means trouble */
|
|
ber_tag_t
|
|
ber_get_tag( BerElement *ber )
|
|
{
|
|
unsigned char xbyte;
|
|
ber_tag_t tag;
|
|
unsigned int i;
|
|
|
|
assert( ber != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( ber_read( ber, (char *) &xbyte, 1 ) != 1 ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
tag = xbyte;
|
|
|
|
if ( (xbyte & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) {
|
|
return tag;
|
|
}
|
|
|
|
for ( i = 1; i < sizeof(ber_tag_t); i++ ) {
|
|
if ( ber_read( ber, (char *) &xbyte, 1 ) != 1 ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
tag <<= 8;
|
|
tag |= 0x00ffUL & (ber_tag_t) xbyte;
|
|
|
|
if ( ! (xbyte & LBER_MORE_TAG_MASK) ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* tag too big! */
|
|
if ( i == sizeof(ber_tag_t) ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_skip_tag( BerElement *ber, ber_len_t *len )
|
|
{
|
|
ber_tag_t tag;
|
|
unsigned char lc;
|
|
ber_len_t i, noctets;
|
|
unsigned char netlen[sizeof(ber_len_t)];
|
|
|
|
assert( ber != NULL );
|
|
assert( len != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
/*
|
|
* Any ber element looks like this: tag length contents.
|
|
* Assuming everything's ok, we return the tag byte (we
|
|
* can assume a single byte), and return the length in len.
|
|
*
|
|
* Assumptions:
|
|
* 1) definite lengths
|
|
* 2) primitive encodings used whenever possible
|
|
*/
|
|
|
|
*len = 0;
|
|
|
|
/*
|
|
* First, we read the tag.
|
|
*/
|
|
|
|
if ( (tag = ber_get_tag( ber )) == LBER_DEFAULT ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
/*
|
|
* Next, read the length. The first byte contains the length of
|
|
* the length. If bit 8 is set, the length is the long form,
|
|
* otherwise it's the short form. We don't allow a length that's
|
|
* greater than what we can hold in a ber_len_t.
|
|
*/
|
|
|
|
if ( ber_read( ber, (char *) &lc, 1 ) != 1 )
|
|
return LBER_DEFAULT;
|
|
|
|
if ( lc & 0x80U ) {
|
|
noctets = (lc & 0x7fU);
|
|
|
|
if ( noctets > sizeof(ber_len_t) ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if( (unsigned) ber_read( ber, netlen, noctets ) != noctets ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
for( i = 0; i < noctets; i++ ) {
|
|
*len <<= 8;
|
|
*len |= netlen[i];
|
|
}
|
|
|
|
} else {
|
|
*len = lc;
|
|
}
|
|
|
|
/* BER element should have enough data left */
|
|
if( *len > ber_pvt_ber_remaining( ber ) ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_peek_tag(
|
|
BerElement *ber,
|
|
ber_len_t *len )
|
|
{
|
|
/*
|
|
* This implementation assumes ber_skip_tag() only
|
|
* modifies ber_ptr field of the BerElement.
|
|
*/
|
|
|
|
char *save;
|
|
ber_tag_t tag;
|
|
|
|
save = ber->ber_ptr;
|
|
tag = ber_skip_tag( ber, len );
|
|
ber->ber_ptr = save;
|
|
|
|
return tag;
|
|
}
|
|
|
|
static ber_len_t
|
|
ber_getnint(
|
|
BerElement *ber,
|
|
ber_int_t *num,
|
|
ber_len_t len )
|
|
{
|
|
unsigned char buf[sizeof(ber_int_t)];
|
|
|
|
assert( ber != NULL );
|
|
assert( num != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
/*
|
|
* The tag and length have already been stripped off. We should
|
|
* be sitting right before len bytes of 2's complement integer,
|
|
* ready to be read straight into an int. We may have to sign
|
|
* extend after we read it in.
|
|
*/
|
|
|
|
if ( len > sizeof(ber_int_t) ) {
|
|
return -1;
|
|
}
|
|
|
|
/* read into the low-order bytes of our buffer */
|
|
if ( (ber_len_t) ber_read( ber, (char *) buf, len ) != len ) {
|
|
return -1;
|
|
}
|
|
|
|
if( len ) {
|
|
/* sign extend if necessary */
|
|
ber_len_t i;
|
|
ber_int_t netnum = 0x80 & buf[0] ? -1 : 0;
|
|
|
|
/* shift in the bytes */
|
|
for( i=0 ; i<len; i++ ) {
|
|
netnum = (netnum << 8 ) | buf[i];
|
|
}
|
|
|
|
*num = netnum;
|
|
|
|
} else {
|
|
*num = 0;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_int(
|
|
BerElement *ber,
|
|
ber_int_t *num )
|
|
{
|
|
ber_tag_t tag;
|
|
ber_len_t len;
|
|
|
|
assert( ber != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( ber_getnint( ber, num, len ) != len ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_enum(
|
|
BerElement *ber,
|
|
ber_int_t *num )
|
|
{
|
|
return ber_get_int( ber, num );
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_stringb(
|
|
BerElement *ber,
|
|
char *buf,
|
|
ber_len_t *len )
|
|
{
|
|
ber_len_t datalen;
|
|
ber_tag_t tag;
|
|
|
|
assert( ber != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
/* must fit within allocated space with termination */
|
|
if ( datalen >= *len ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( (ber_len_t) ber_read( ber, buf, datalen ) != datalen ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
buf[datalen] = '\0';
|
|
|
|
*len = datalen;
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_stringa( BerElement *ber, char **buf )
|
|
{
|
|
ber_len_t datalen;
|
|
ber_tag_t tag;
|
|
|
|
assert( ber != NULL );
|
|
assert( buf != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) {
|
|
*buf = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( (*buf = (char *) LBER_MALLOC( datalen + 1 )) == NULL ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( (ber_len_t) ber_read( ber, *buf, datalen ) != datalen ) {
|
|
LBER_FREE( *buf );
|
|
*buf = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
(*buf)[datalen] = '\0';
|
|
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_stringal( BerElement *ber, struct berval **bv )
|
|
{
|
|
ber_len_t len;
|
|
ber_tag_t tag;
|
|
|
|
assert( ber != NULL );
|
|
assert( bv != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) {
|
|
*bv = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
*bv = (struct berval *) LBER_MALLOC( sizeof(struct berval) );
|
|
if ( *bv == NULL ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if( len == 0 ) {
|
|
(*bv)->bv_val = NULL;
|
|
(*bv)->bv_len = 0;
|
|
return tag;
|
|
}
|
|
|
|
(*bv)->bv_val = (char *) LBER_MALLOC( len + 1 );
|
|
if ( (*bv)->bv_val == NULL ) {
|
|
LBER_FREE( *bv );
|
|
*bv = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( (ber_len_t) ber_read( ber, (*bv)->bv_val, len ) != len ) {
|
|
ber_bvfree( *bv );
|
|
*bv = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
((*bv)->bv_val)[len] = '\0';
|
|
(*bv)->bv_len = len;
|
|
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_bitstringa(
|
|
BerElement *ber,
|
|
char **buf,
|
|
ber_len_t *blen )
|
|
{
|
|
ber_len_t datalen;
|
|
ber_tag_t tag;
|
|
unsigned char unusedbits;
|
|
|
|
assert( ber != NULL );
|
|
assert( buf != NULL );
|
|
assert( blen != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) {
|
|
*buf = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
--datalen;
|
|
|
|
if ( (*buf = (char *) LBER_MALLOC( datalen )) == NULL ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( ber_read( ber, (char *)&unusedbits, 1 ) != 1 ) {
|
|
LBER_FREE( buf );
|
|
*buf = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( (ber_len_t) ber_read( ber, *buf, datalen ) != datalen ) {
|
|
LBER_FREE( buf );
|
|
*buf = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
*blen = datalen * 8 - unusedbits;
|
|
return tag;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_null( BerElement *ber )
|
|
{
|
|
ber_len_t len;
|
|
ber_tag_t tag;
|
|
|
|
assert( ber != NULL );
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
if ( len != 0 ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return( tag );
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_get_boolean(
|
|
BerElement *ber,
|
|
ber_int_t *boolval )
|
|
{
|
|
ber_int_t longbool;
|
|
ber_tag_t rc;
|
|
|
|
assert( ber != NULL );
|
|
assert( boolval != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
rc = ber_get_int( ber, &longbool );
|
|
*boolval = longbool;
|
|
|
|
return rc;
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_first_element(
|
|
BerElement *ber,
|
|
ber_len_t *len,
|
|
char **last )
|
|
{
|
|
assert( ber != NULL );
|
|
assert( len != NULL );
|
|
assert( last != NULL );
|
|
|
|
/* skip the sequence header, use the len to mark where to stop */
|
|
if ( ber_skip_tag( ber, len ) == LBER_DEFAULT ) {
|
|
*last = NULL;
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
*last = ber->ber_ptr + *len;
|
|
|
|
if ( *last == ber->ber_ptr ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return ber_peek_tag( ber, len );
|
|
}
|
|
|
|
ber_tag_t
|
|
ber_next_element(
|
|
BerElement *ber,
|
|
ber_len_t *len,
|
|
LDAP_CONST char *last )
|
|
{
|
|
assert( ber != NULL );
|
|
assert( len != NULL );
|
|
assert( last != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
if ( ber->ber_ptr == last ) {
|
|
return LBER_DEFAULT;
|
|
}
|
|
|
|
return ber_peek_tag( ber, len );
|
|
}
|
|
|
|
/* VARARGS */
|
|
ber_tag_t
|
|
ber_scanf ( BerElement *ber,
|
|
LDAP_CONST char *fmt,
|
|
... )
|
|
{
|
|
va_list ap;
|
|
LDAP_CONST char *fmt_reset;
|
|
char *last;
|
|
char *s, **ss, ***sss;
|
|
struct berval ***bv, **bvp, *bval;
|
|
ber_int_t *i;
|
|
int j;
|
|
ber_len_t *l;
|
|
ber_tag_t *t;
|
|
ber_tag_t rc, tag;
|
|
ber_len_t len;
|
|
|
|
va_start( ap, fmt );
|
|
|
|
assert( ber != NULL );
|
|
assert( fmt != NULL );
|
|
|
|
assert( LBER_VALID( ber ) );
|
|
|
|
fmt_reset = fmt;
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "liblber", LDAP_LEVEL_ENTRY, "ber_scanf fmt (%s) ber:\n", fmt ));
|
|
BER_DUMP(( "liblber", LDAP_LEVEL_DETAIL2, ber, 1 ));
|
|
#else
|
|
ber_log_printf( LDAP_DEBUG_TRACE, ber->ber_debug,
|
|
"ber_scanf fmt (%s) ber:\n", fmt );
|
|
ber_log_dump( LDAP_DEBUG_BER, ber->ber_debug, ber, 1 );
|
|
#endif
|
|
|
|
for ( rc = 0; *fmt && rc != LBER_DEFAULT; fmt++ ) {
|
|
/* When this is modified, remember to update
|
|
* the error-cleanup code below accordingly. */
|
|
switch ( *fmt ) {
|
|
case '!': { /* Hook */
|
|
BERDecodeCallback *f;
|
|
void *p;
|
|
|
|
f = va_arg( ap, BERDecodeCallback * );
|
|
p = va_arg( ap, void * );
|
|
|
|
rc = (*f)( ber, p, 0 );
|
|
} break;
|
|
|
|
case 'a': /* octet string - allocate storage as needed */
|
|
ss = va_arg( ap, char ** );
|
|
rc = ber_get_stringa( ber, ss );
|
|
break;
|
|
|
|
case 'b': /* boolean */
|
|
i = va_arg( ap, ber_int_t * );
|
|
rc = ber_get_boolean( ber, i );
|
|
break;
|
|
|
|
case 'e': /* enumerated */
|
|
case 'i': /* int */
|
|
i = va_arg( ap, ber_int_t * );
|
|
rc = ber_get_int( ber, i );
|
|
break;
|
|
|
|
case 'l': /* length of next item */
|
|
l = va_arg( ap, ber_len_t * );
|
|
rc = ber_peek_tag( ber, l );
|
|
break;
|
|
|
|
case 'n': /* null */
|
|
rc = ber_get_null( ber );
|
|
break;
|
|
|
|
case 's': /* octet string - in a buffer */
|
|
s = va_arg( ap, char * );
|
|
l = va_arg( ap, ber_len_t * );
|
|
rc = ber_get_stringb( ber, s, l );
|
|
break;
|
|
|
|
case 'o': /* octet string in a supplied berval */
|
|
bval = va_arg( ap, struct berval * );
|
|
ber_peek_tag( ber, &bval->bv_len );
|
|
rc = ber_get_stringa( ber, &bval->bv_val );
|
|
break;
|
|
|
|
case 'O': /* octet string - allocate & include length */
|
|
bvp = va_arg( ap, struct berval ** );
|
|
rc = ber_get_stringal( ber, bvp );
|
|
break;
|
|
|
|
case 'B': /* bit string - allocate storage as needed */
|
|
ss = va_arg( ap, char ** );
|
|
l = va_arg( ap, ber_len_t * ); /* for length, in bits */
|
|
rc = ber_get_bitstringa( ber, ss, l );
|
|
break;
|
|
|
|
case 't': /* tag of next item */
|
|
t = va_arg( ap, ber_tag_t * );
|
|
*t = rc = ber_peek_tag( ber, &len );
|
|
break;
|
|
|
|
case 'T': /* skip tag of next item */
|
|
t = va_arg( ap, ber_tag_t * );
|
|
*t = rc = ber_skip_tag( ber, &len );
|
|
break;
|
|
|
|
case 'v': /* sequence of strings */
|
|
sss = va_arg( ap, char *** );
|
|
*sss = NULL;
|
|
j = 0;
|
|
for ( tag = ber_first_element( ber, &len, &last );
|
|
tag != LBER_DEFAULT && rc != LBER_DEFAULT;
|
|
tag = ber_next_element( ber, &len, last ) )
|
|
{
|
|
char **save = *sss;
|
|
|
|
*sss = (char **) LBER_REALLOC( *sss,
|
|
(j + 2) * sizeof(char *) );
|
|
|
|
if( *sss == NULL ) {
|
|
save[j] = NULL;
|
|
ber_memvfree( (void **) save );
|
|
rc = LBER_DEFAULT;
|
|
goto breakout;
|
|
}
|
|
|
|
rc = ber_get_stringa( ber, &((*sss)[j]) );
|
|
j++;
|
|
}
|
|
if ( j > 0 ) (*sss)[j] = NULL;
|
|
break;
|
|
|
|
case 'V': /* sequence of strings + lengths */
|
|
bv = va_arg( ap, struct berval *** );
|
|
*bv = NULL;
|
|
j = 0;
|
|
for ( tag = ber_first_element( ber, &len, &last );
|
|
tag != LBER_DEFAULT && rc != LBER_DEFAULT;
|
|
tag = ber_next_element( ber, &len, last ) )
|
|
{
|
|
struct berval **save = *bv;
|
|
|
|
*bv = (struct berval **) LBER_REALLOC( *bv,
|
|
(j + 2) * sizeof(struct berval *) );
|
|
|
|
if( *bv == NULL ) {
|
|
save[j] = NULL;
|
|
ber_bvecfree( save );
|
|
rc = LBER_DEFAULT;
|
|
goto breakout;
|
|
}
|
|
|
|
rc = ber_get_stringal( ber, &((*bv)[j]) );
|
|
j++;
|
|
}
|
|
if ( j > 0 ) (*bv)[j] = NULL;
|
|
break;
|
|
|
|
case 'x': /* skip the next element - whatever it is */
|
|
if ( (rc = ber_skip_tag( ber, &len )) == LBER_DEFAULT )
|
|
break;
|
|
ber->ber_ptr += len;
|
|
break;
|
|
|
|
case '{': /* begin sequence */
|
|
case '[': /* begin set */
|
|
if ( *(fmt + 1) != 'v' && *(fmt + 1) != 'V' )
|
|
rc = ber_skip_tag( ber, &len );
|
|
break;
|
|
|
|
case '}': /* end sequence */
|
|
case ']': /* end set */
|
|
break;
|
|
|
|
default:
|
|
if( ber->ber_debug ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "liblber", LDAP_LEVEL_ERR,
|
|
"ber_scanf: unknown fmt %c\n", *fmt ));
|
|
#else
|
|
ber_log_printf( LDAP_DEBUG_ANY, ber->ber_debug,
|
|
"ber_scanf: unknown fmt %c\n", *fmt );
|
|
#endif
|
|
}
|
|
rc = LBER_DEFAULT;
|
|
break;
|
|
}
|
|
}
|
|
|
|
breakout:
|
|
va_end( ap );
|
|
|
|
if ( rc == LBER_DEFAULT ) {
|
|
/*
|
|
* Error. Reclaim malloced memory that was given to the caller.
|
|
* Set allocated pointers to NULL, "data length" outvalues to 0.
|
|
*/
|
|
va_start( ap, fmt );
|
|
|
|
for ( ; fmt_reset < fmt; fmt_reset++ ) {
|
|
switch ( *fmt_reset ) {
|
|
case '!': { /* Hook */
|
|
BERDecodeCallback *f;
|
|
void *p;
|
|
|
|
f = va_arg( ap, BERDecodeCallback * );
|
|
p = va_arg( ap, void * );
|
|
|
|
(void) (*f)( ber, p, 1 );
|
|
} break;
|
|
|
|
case 'a': /* octet string - allocate storage as needed */
|
|
ss = va_arg( ap, char ** );
|
|
if ( *ss ) {
|
|
LBER_FREE( *ss );
|
|
*ss = NULL;
|
|
}
|
|
break;
|
|
|
|
case 'b': /* boolean */
|
|
case 'e': /* enumerated */
|
|
case 'i': /* int */
|
|
(void) va_arg( ap, int * );
|
|
break;
|
|
|
|
case 's': /* octet string - in a buffer */
|
|
(void) va_arg( ap, char * );
|
|
(void) va_arg( ap, ber_len_t * );
|
|
break;
|
|
|
|
case 'l': /* length of next item */
|
|
(void) va_arg( ap, ber_len_t * );
|
|
break;
|
|
|
|
case 't': /* tag of next item */
|
|
case 'T': /* skip tag of next item */
|
|
(void) va_arg( ap, ber_tag_t * );
|
|
break;
|
|
|
|
case 'o': /* octet string in a supplied berval */
|
|
bval = va_arg( ap, struct berval * );
|
|
if ( bval->bv_val != NULL ) {
|
|
LBER_FREE( bval->bv_val );
|
|
bval->bv_val = NULL;
|
|
}
|
|
bval->bv_len = 0;
|
|
break;
|
|
|
|
case 'O': /* octet string - allocate & include length */
|
|
bvp = va_arg( ap, struct berval ** );
|
|
if ( *bvp ) {
|
|
ber_bvfree( *bvp );
|
|
*bvp = NULL;
|
|
}
|
|
break;
|
|
|
|
case 'B': /* bit string - allocate storage as needed */
|
|
ss = va_arg( ap, char ** );
|
|
if ( *ss ) {
|
|
LBER_FREE( *ss );
|
|
*ss = NULL;
|
|
}
|
|
*(va_arg( ap, ber_len_t * )) = 0; /* for length, in bits */
|
|
break;
|
|
|
|
case 'v': /* sequence of strings */
|
|
sss = va_arg( ap, char *** );
|
|
if ( *sss ) {
|
|
ber_memvfree( (void **) *sss );
|
|
*sss = NULL;
|
|
}
|
|
break;
|
|
|
|
case 'V': /* sequence of strings + lengths */
|
|
bv = va_arg( ap, struct berval *** );
|
|
if ( *bv ) {
|
|
ber_bvecfree( *bv );
|
|
*bv = NULL;
|
|
}
|
|
break;
|
|
|
|
case 'n': /* null */
|
|
case 'x': /* skip the next element - whatever it is */
|
|
case '{': /* begin sequence */
|
|
case '[': /* begin set */
|
|
case '}': /* end sequence */
|
|
case ']': /* end set */
|
|
break;
|
|
|
|
default:
|
|
/* format should be good */
|
|
assert( 0 );
|
|
}
|
|
}
|
|
|
|
va_end( ap );
|
|
}
|
|
|
|
return rc;
|
|
}
|