diff options
Diffstat (limited to 'usr/src/lib/libldap5/sources/ldap/ber')
| -rw-r--r-- | usr/src/lib/libldap5/sources/ldap/ber/bprint.c | 94 | ||||
| -rw-r--r-- | usr/src/lib/libldap5/sources/ldap/ber/decode.c | 770 | ||||
| -rw-r--r-- | usr/src/lib/libldap5/sources/ldap/ber/encode.c | 679 | ||||
| -rw-r--r-- | usr/src/lib/libldap5/sources/ldap/ber/io.c | 1363 | ||||
| -rw-r--r-- | usr/src/lib/libldap5/sources/ldap/ber/lber-int.h | 296 |
5 files changed, 3202 insertions, 0 deletions
diff --git a/usr/src/lib/libldap5/sources/ldap/ber/bprint.c b/usr/src/lib/libldap5/sources/ldap/ber/bprint.c new file mode 100644 index 0000000000..317a11e25f --- /dev/null +++ b/usr/src/lib/libldap5/sources/ldap/ber/bprint.c @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2001 by Sun Microsystems, Inc. + * All rights reserved. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * The contents of this file are subject to the Netscape Public + * License Version 1.1 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.mozilla.org/NPL/ + * + * Software distributed under the License is distributed on an "AS + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + * implied. See the License for the specific language governing + * rights and limitations under the License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998-1999 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + */ + +/* bprint.c - a printing utility for debuging output */ +#include <string.h> +#include "lber-int.h" + +#ifdef LDAP_DEBUG +/* + * Print arbitrary stuff, for debugging. + */ + +#define BPLEN 48 + +void +lber_bprint( char *data, int len ) +{ + static char hexdig[] = "0123456789abcdef"; + char out[ BPLEN ]; + int i = 0; + + memset( out, 0, BPLEN ); + for ( ;; ) { + if ( len < 1 ) { + char msg[BPLEN + 80]; + sprintf( msg, "\t%s\n", ( i == 0 ) ? "(end)" : out ); + ber_err_print( msg ); + break; + } + +#ifndef HEX + if ( isgraph( (unsigned char)*data )) { + out[ i ] = ' '; + out[ i+1 ] = *data; + } else { +#endif + out[ i ] = hexdig[ ( *data & 0xf0 ) >> 4 ]; + out[ i+1 ] = hexdig[ *data & 0x0f ]; +#ifndef HEX + } +#endif + i += 2; + len--; + data++; + + if ( i > BPLEN - 2 ) { + char msg[BPLEN + 80]; + sprintf( msg, "\t%s\n", out ); + ber_err_print( msg ); + memset( out, 0, BPLEN ); + i = 0; + continue; + } + out[ i++ ] = ' '; + } +} + +#endif + +void ber_err_print( char *data ) +{ +#ifdef USE_DEBUG_WIN + OutputDebugString( data ); +#else + fputs( data, stderr ); + fflush( stderr ); +#endif +} diff --git a/usr/src/lib/libldap5/sources/ldap/ber/decode.c b/usr/src/lib/libldap5/sources/ldap/ber/decode.c new file mode 100644 index 0000000000..27c308f4c7 --- /dev/null +++ b/usr/src/lib/libldap5/sources/ldap/ber/decode.c @@ -0,0 +1,770 @@ +/* + * Copyright 2001-2002 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + + +#pragma ident "%Z%%M% %I% %E% SMI" + + +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * The contents of this file are subject to the Netscape Public License + * Version 1.0 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of this code under the NPL is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998 Netscape Communications Corporation. All Rights + * Reserved. + */ + +/* + * 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. + */ + +/* decode.c - ber input decoding routines */ + +#include "lber-int.h" +LDAP_API(void) LDAP_CALL ber_svecfree( char **vals ); + +/* + * Note: ber_get_tag() only uses the ber_end and ber_ptr elements of ber. + * If that changes, the ber_peek_tag() and/or ber_skip_tag() implementations + * will need to be changed. + */ +/* return the tag - LBER_DEFAULT returned means trouble */ +ber_tag_t +LDAP_CALL +ber_get_tag( BerElement *ber ) +{ + unsigned char xbyte; + ber_tag_t tag; + char *tagp; + int i; + + if ( ber_read( ber, (char *) &xbyte, 1 ) != 1 ) + return( LBER_DEFAULT ); + + if ( (xbyte & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) + return( (ber_uint_t) xbyte ); + + tagp = (char *) &tag; + tagp[0] = xbyte; + for ( i = 1; i < sizeof(ber_int_t); i++ ) { + if ( ber_read( ber, (char *) &xbyte, 1 ) != 1 ) + return( LBER_DEFAULT ); + + tagp[i] = xbyte; + + if ( ! (xbyte & LBER_MORE_TAG_MASK) ) + break; + } + + /* tag too big! */ + if ( i == sizeof(ber_int_t) ) + return( LBER_DEFAULT ); + + /* want leading, not trailing 0's */ + return( tag >> (sizeof(ber_int_t) - i - 1) ); +} + +/* + * Note: ber_skip_tag() only uses the ber_end and ber_ptr elements of ber. + * If that changes, the implementation of ber_peek_tag() will need to + * be changed. + */ +ber_tag_t +LDAP_CALL +ber_skip_tag( BerElement *ber, ber_len_t *len ) +{ + ber_tag_t tag; + unsigned char lc; + int noctets, diff; + ber_len_t netlen; + + /* + * 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 + */ + + /* + * 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 an unsigned long. + */ + + *len = netlen = 0; + if ( ber_read( ber, (char *) &lc, 1 ) != 1 ) + return( LBER_DEFAULT ); + if ( lc & 0x80 ) { + noctets = (lc & 0x7f); + if ( noctets > sizeof(ber_uint_t) ) + return( LBER_DEFAULT ); + diff = sizeof(ber_int_t) - noctets; + if ( ber_read( ber, (char *) &netlen + diff, noctets ) + != noctets ) + return( LBER_DEFAULT ); + *len = LBER_NTOHL( netlen ); + } else { + *len = lc; + } + + return( tag ); +} + + +/* + * Note: Previously, we passed the "ber" parameter directly to ber_skip_tag(), + * saving and restoring the ber_ptr element only. We now take advantage + * of the fact that the only ber structure elements touched by ber_skip_tag() + * are ber_end and ber_ptr. If that changes, this code must change too. + */ +ber_tag_t +LDAP_CALL +ber_peek_tag( BerElement *ber, ber_len_t *len ) +{ + BerElement bercopy; + + bercopy.ber_end = ber->ber_end; + bercopy.ber_ptr = ber->ber_ptr; + return( ber_skip_tag( &bercopy, len )); +} + +static int +ber_getnint( BerElement *ber, ber_int_t *num, ber_slen_t len ) +{ + int i; + ber_int_t value; + unsigned char buffer[sizeof(ber_int_t)]; + /* + * 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_slen_t) ) + return( -1 ); + + /* read into the low-order bytes of netnum */ + if ( ber_read( ber, (char *) buffer, len ) != len ) + return( -1 ); + + /* This sets the required sign extension */ + if ( len != 0) { + value = 0x80 & buffer[0] ? (LBER_FUNC_VALUE) : 0; + } else { + value = 0; + } + + for ( i = 0; i < len; i++ ) + value = (value << 8) | buffer[i]; + + *num = value; + + return( len ); +} + +ber_tag_t +LDAP_CALL +ber_get_int( BerElement *ber, ber_int_t *num ) +{ + ber_tag_t tag; + ber_len_t len; + + if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) + return( LBER_DEFAULT ); + + /* + * len is being demoted to a long here -- possible conversion error + */ + + if ( ber_getnint( ber, num, (int)len ) != (ber_slen_t)len ) + return( LBER_DEFAULT ); + else + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_stringb( BerElement *ber, char *buf, ber_len_t *len ) +{ + ber_len_t datalen; + ber_tag_t tag; +#ifdef STR_TRANSLATION + char *transbuf; +#endif /* STR_TRANSLATION */ + + if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) + return( LBER_DEFAULT ); + if ( datalen > (*len - 1) ) + return( LBER_DEFAULT ); + + /* + * datalen is being demoted to a long here -- possible conversion error + */ + + if ( ber_read( ber, buf, datalen ) != (ber_slen_t) datalen ) + return( LBER_DEFAULT ); + + buf[datalen] = '\0'; + +#ifdef STR_TRANSLATION + if ( datalen > 0 && ( ber->ber_options & LBER_OPT_TRANSLATE_STRINGS ) + != 0 && ber->ber_decode_translate_proc != NULL ) { + transbuf = buf; + ++datalen; + if ( (*(ber->ber_decode_translate_proc))( &transbuf, &datalen, + 0 ) != 0 ) { + return( LBER_DEFAULT ); + } + if ( datalen > *len ) { + NSLBERI_FREE( transbuf ); + return( LBER_DEFAULT ); + } + SAFEMEMCPY( buf, transbuf, datalen ); + NSLBERI_FREE( transbuf ); + --datalen; + } +#endif /* STR_TRANSLATION */ + + *len = datalen; + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_stringa( BerElement *ber, char **buf ) +{ + ber_len_t datalen; + ber_tag_t tag; + + if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) + return( LBER_DEFAULT ); + + if ( (*buf = (char *)NSLBERI_MALLOC( (size_t)datalen + 1 )) == NULL ) + return( LBER_DEFAULT ); + + /* + * datalen is being demoted to a long here -- possible conversion error + */ + if ( ber_read( ber, *buf, datalen ) != (ber_slen_t) datalen ) + return( LBER_DEFAULT ); + (*buf)[datalen] = '\0'; + +#ifdef STR_TRANSLATION + if ( datalen > 0 && ( ber->ber_options & LBER_OPT_TRANSLATE_STRINGS ) + != 0 && ber->ber_decode_translate_proc != NULL ) { + ++datalen; + if ( (*(ber->ber_decode_translate_proc))( buf, &datalen, 1 ) + != 0 ) { + NSLBERI_FREE( *buf ); + return( LBER_DEFAULT ); + } + } +#endif /* STR_TRANSLATION */ + + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_stringal( BerElement *ber, struct berval **bv ) +{ + ber_len_t len; + ber_tag_t tag; + + if ( (*bv = (struct berval *)NSLBERI_MALLOC( sizeof(struct berval) )) + == NULL ) { + return( LBER_DEFAULT ); + } + + if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) { + return( LBER_DEFAULT ); + } + + if ( ((*bv)->bv_val = (char *)NSLBERI_MALLOC( (size_t)len + 1 )) + == NULL ) { + return( LBER_DEFAULT ); + } + + /* + * len is being demoted to a long here -- possible conversion error + */ + if ( ber_read( ber, (*bv)->bv_val, len ) != (ber_slen_t) len ) + return( LBER_DEFAULT ); + ((*bv)->bv_val)[len] = '\0'; + (*bv)->bv_len = len; + +#ifdef STR_TRANSLATION + if ( len > 0 && ( ber->ber_options & LBER_OPT_TRANSLATE_STRINGS ) != 0 + && ber->ber_decode_translate_proc != NULL ) { + ++len; + if ( (*(ber->ber_decode_translate_proc))( &((*bv)->bv_val), + &len, 1 ) != 0 ) { + NSLBERI_FREE( (*bv)->bv_val ); + return( LBER_DEFAULT ); + } + (*bv)->bv_len = len - 1; + } +#endif /* STR_TRANSLATION */ + + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_bitstringa( BerElement *ber, char **buf, ber_len_t *blen ) +{ + ber_len_t datalen; + ber_tag_t tag; + unsigned char unusedbits; + + if ( (tag = ber_skip_tag( ber, &datalen )) == LBER_DEFAULT ) + return( LBER_DEFAULT ); + --datalen; + + if ( (*buf = (char *)NSLBERI_MALLOC( (size_t)datalen )) == NULL ) + return( LBER_DEFAULT ); + + if ( ber_read( ber, (char *)&unusedbits, 1 ) != 1 ) + return( LBER_DEFAULT ); + + /* + * datalen is being demoted to a long here -- possible conversion error + */ + if ( ber_read( ber, *buf, datalen ) != (ber_slen_t) datalen ) + return( LBER_DEFAULT ); + + *blen = datalen * 8 - unusedbits; + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_null( BerElement *ber ) +{ + ber_len_t len; + ber_tag_t tag; + + if ( (tag = ber_skip_tag( ber, &len )) == LBER_DEFAULT ) + return( LBER_DEFAULT ); + + if ( len != 0 ) + return( LBER_DEFAULT ); + + return( tag ); +} + +ber_tag_t +LDAP_CALL +ber_get_boolean( BerElement *ber, int *boolval ) +{ + ber_int_t longbool; + int rc; + + rc = ber_get_int( ber, &longbool ); + *boolval = longbool; + + return( rc ); +} + +ber_tag_t +LDAP_CALL +ber_first_element( BerElement *ber, ber_len_t *len, char **last ) +{ + /* skip the sequence header, use the len to mark where to stop */ + if ( ber_skip_tag( ber, len ) == LBER_DEFAULT ) { + return( LBER_ERROR ); + } + + *last = ber->ber_ptr + *len; + + if ( *last == ber->ber_ptr ) { + return( LBER_END_OF_SEQORSET ); + } + + return( ber_peek_tag( ber, len ) ); +} + +ber_tag_t +LDAP_CALL +ber_next_element( BerElement *ber, ber_len_t *len, char *last ) +{ + if ( ber->ber_ptr == last ) { + return( LBER_END_OF_SEQORSET ); + } + + return( ber_peek_tag( ber, len ) ); +} + +/* VARARGS */ +ber_tag_t +LDAP_C +ber_scanf( BerElement *ber, const char *fmt, ... ) +{ + va_list ap; + char *last, *p; + char *s, **ss, ***sss; + struct berval ***bv, **bvp, *bval; + int *i, j; + ber_int_t *l, rc, tag; + ber_tag_t *t; + ber_len_t len; + size_t array_size; + + va_start( ap, fmt ); + +#ifdef LDAP_DEBUG + if ( lber_debug & 64 ) { + char msg[80]; + sprintf( msg, "ber_scanf fmt (%s) ber:\n", fmt ); + ber_err_print( msg ); + ber_dump( ber, 1 ); + } +#endif + + for ( rc = 0, p = (char *)fmt; *p && rc != LBER_DEFAULT; p++ ) { + switch ( *p ) { + 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, int * ); + rc = ber_get_boolean( ber, i ); + break; + + case 'e': /* enumerated */ + case 'i': /* int */ + l = va_arg( ap, ber_slen_t * ); + rc = ber_get_int( ber, l ); + break; + + case 'l': /* length of next item */ + l = va_arg( ap, ber_slen_t * ); + rc = ber_peek_tag( ber, (ber_len_t *)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_slen_t * ); + rc = ber_get_stringb( ber, s, (ber_len_t *)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_slen_t * ); /* for length, in bits */ + rc = ber_get_bitstringa( ber, ss, (ber_len_t *)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; + array_size = 0; + for ( tag = ber_first_element( ber, &len, &last ); + tag != LBER_DEFAULT && tag != LBER_END_OF_SEQORSET + && rc != LBER_DEFAULT; + tag = ber_next_element( ber, &len, last ) ) { + if ( *sss == NULL ) { + /* Make room for at least 15 strings */ + *sss = (char **)NSLBERI_MALLOC(16 * sizeof(char *) ); + array_size = 16; + } else { + if ( (size_t)(j+2) > array_size) { + /* We'v overflowed our buffer */ + *sss = (char **)NSLBERI_REALLOC( *sss, (array_size * 2) * sizeof(char *) ); + array_size = array_size * 2; + } + } + rc = ber_get_stringa( ber, &((*sss)[j]) ); + j++; + } + if ( rc != LBER_DEFAULT && + tag != LBER_END_OF_SEQORSET ) { + rc = LBER_DEFAULT; + } + 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 && tag != LBER_END_OF_SEQORSET + && rc != LBER_DEFAULT; + tag = ber_next_element( ber, &len, last ) ) { + if ( *bv == NULL ) { + *bv = (struct berval **)NSLBERI_MALLOC( + 2 * sizeof(struct berval *) ); + } else { + *bv = (struct berval **)NSLBERI_REALLOC( + *bv, + (j + 2) * sizeof(struct berval *) ); + } + rc = ber_get_stringal( ber, &((*bv)[j]) ); + j++; + } + if ( rc != LBER_DEFAULT && + tag != LBER_END_OF_SEQORSET ) { + rc = LBER_DEFAULT; + } + 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 ( *(p + 1) != 'v' && *(p + 1) != 'V' ) + rc = ber_skip_tag( ber, &len ); + break; + + case '}': /* end sequence */ + case ']': /* end set */ + break; + + default: + { + char msg[80]; + sprintf( msg, "unknown fmt %c\n", *p ); + ber_err_print( msg ); + } + rc = LBER_DEFAULT; + break; + } + } + + + va_end( ap ); + if (rc == LBER_DEFAULT) { + va_start( ap, fmt ); + for ( p--; fmt < p && *fmt; fmt++ ) { + switch ( *fmt ) { + case 'a': /* octet string - allocate storage as needed */ + ss = va_arg( ap, char ** ); + NSLBERI_FREE(*ss); + *ss = NULL; + break; + + case 'b': /* boolean */ + i = va_arg( ap, int * ); + break; + + case 'e': /* enumerated */ + case 'i': /* int */ + l = va_arg( ap, ber_slen_t * ); + break; + + case 'l': /* length of next item */ + l = va_arg( ap, ber_slen_t * ); + break; + + case 'n': /* null */ + break; + + case 's': /* octet string - in a buffer */ + s = va_arg( ap, char * ); + l = va_arg( ap, ber_slen_t * ); + break; + + case 'o': /* octet string in a supplied berval */ + bval = va_arg( ap, struct berval * ); + if (bval->bv_val) NSLBERI_FREE(bval->bv_val); + memset(bval, 0, sizeof(struct berval)); + break; + + case 'O': /* octet string - allocate & include length */ + bvp = va_arg( ap, struct berval ** ); + ber_bvfree(*bvp); + bvp = NULL; + break; + + case 'B': /* bit string - allocate storage as needed */ + ss = va_arg( ap, char ** ); + l = va_arg( ap, ber_slen_t * ); /* for length, in bits */ + if (*ss) NSLBERI_FREE(*ss); + *ss = NULL; + break; + + case 't': /* tag of next item */ + t = va_arg( ap, ber_tag_t * ); + break; + case 'T': /* skip tag of next item */ + t = va_arg( ap, ber_tag_t * ); + break; + + case 'v': /* sequence of strings */ + sss = va_arg( ap, char *** ); + ber_svecfree(*sss); + *sss = NULL; + break; + + case 'V': /* sequence of strings + lengths */ + bv = va_arg( ap, struct berval *** ); + ber_bvecfree(*bv); + *bv = NULL; + break; + + case 'x': /* skip the next element - whatever it is */ + break; + + case '{': /* begin sequence */ + case '[': /* begin set */ + break; + + case '}': /* end sequence */ + case ']': /* end set */ + break; + + default: + break; + } + } /* for */ + va_end( ap ); + } /* if */ + + + return( rc ); +} + +void +LDAP_CALL +ber_bvfree( struct berval *bv ) +{ + if ( bv != NULL ) { + if ( bv->bv_val != NULL ) { + NSLBERI_FREE( bv->bv_val ); + } + NSLBERI_FREE( (char *) bv ); + } +} + +void +LDAP_CALL +ber_bvecfree( struct berval **bv ) +{ + int i; + + if ( bv != NULL ) { + for ( i = 0; bv[i] != NULL; i++ ) { + ber_bvfree( bv[i] ); + } + NSLBERI_FREE( (char *) bv ); + } +} + +struct berval * +LDAP_CALL +ber_bvdup( const struct berval *bv ) +{ + struct berval *new; + + if ( (new = (struct berval *)NSLBERI_MALLOC( sizeof(struct berval) )) + == NULL ) { + return( NULL ); + } + if ( bv->bv_val == NULL ) { + new->bv_val = NULL; + new->bv_len = 0; + } else { + if ( (new->bv_val = (char *)NSLBERI_MALLOC( bv->bv_len + 1 )) + == NULL ) { + return( NULL ); + } + SAFEMEMCPY( new->bv_val, bv->bv_val, (size_t) bv->bv_len ); + new->bv_val[bv->bv_len] = '\0'; + new->bv_len = bv->bv_len; + } + + return( new ); +} + +void +LDAP_CALL +ber_svecfree( char **vals ) +{ + int i; + + if ( vals == NULL ) + return; + for ( i = 0; vals[i] != NULL; i++ ) + NSLBERI_FREE( vals[i] ); + NSLBERI_FREE( (char *) vals ); +} + +#ifdef STR_TRANSLATION +void +LDAP_CALL +ber_set_string_translators( + BerElement *ber, + BERTranslateProc encode_proc, + BERTranslateProc decode_proc +) +{ + ber->ber_encode_translate_proc = encode_proc; + ber->ber_decode_translate_proc = decode_proc; +} +#endif /* STR_TRANSLATION */ diff --git a/usr/src/lib/libldap5/sources/ldap/ber/encode.c b/usr/src/lib/libldap5/sources/ldap/ber/encode.c new file mode 100644 index 0000000000..49481aa70f --- /dev/null +++ b/usr/src/lib/libldap5/sources/ldap/ber/encode.c @@ -0,0 +1,679 @@ +/* + * Copyright (c) 2001 by Sun Microsystems, Inc. + * All rights reserved. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * The contents of this file are subject to the Netscape Public License + * Version 1.0 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of this code under the NPL is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998 Netscape Communications Corporation. All Rights + * Reserved. + */ + +/* + * 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. + */ + +/* encode.c - ber output encoding routines */ + +#include "lber-int.h" + +/* the following constants are used in ber_calc_lenlen */ + +#define LENMASK1 0xFF +#define LENMASK2 0xFFFF +#define LENMASK3 0xFFFFFF +#define LENMASK4 0xFFFFFFFF +#define _MASK 0x80 + +static int +ber_calc_taglen( ber_tag_t tag ) +{ + int i; + ber_int_t mask; + + /* find the first non-all-zero byte in the tag */ + for ( i = sizeof(ber_int_t) - 1; i > 0; i-- ) { + mask = (LENMASK3 << (i * 8)); + /* not all zero */ + if ( tag & mask ) + break; + } + + return( i + 1 ); +} + +static int +ber_put_tag( BerElement *ber, ber_tag_t tag, int nosos ) +{ + int taglen; + ber_tag_t ntag; + + taglen = ber_calc_taglen( tag ); + + ntag = LBER_HTONL( tag ); + + return( ber_write( ber, ((char *) &ntag) + sizeof(ber_int_t) - taglen, + taglen, nosos ) ); +} + +static int +ber_calc_lenlen( ber_len_t len ) +{ + /* + * short len if it's less than 128 - one byte giving the len, + * with bit 8 0. + */ + + if ( len <= 0x7F ) + return( 1 ); + + /* + * long len otherwise - one byte with bit 8 set, giving the + * length of the length, followed by the length itself. + */ + + if ( len <= LENMASK1 ) + return( 2 ); + if ( len <= LENMASK2 ) + return( 3 ); + if ( len <= LENMASK3 ) + return( 4 ); + + return( 5 ); +} + +static int +ber_put_len( BerElement *ber, ber_len_t len, int nosos ) +{ + int i; + char lenlen; + ber_int_t mask; + ber_len_t netlen; + + /* + * short len if it's less than 128 - one byte giving the len, + * with bit 8 0. + */ + + if ( len <= 127 ) { + netlen = LBER_HTONL( len ); + return( ber_write( ber, (char *) &netlen + sizeof(ber_int_t) - 1, + 1, nosos ) ); + } + + /* + * long len otherwise - one byte with bit 8 set, giving the + * length of the length, followed by the length itself. + */ + + /* find the first non-all-zero byte */ + for ( i = sizeof(ber_int_t) - 1; i > 0; i-- ) { + mask = (LENMASK1 << (i * 8)); + /* not all zero */ + if ( len & mask ) + break; + } + lenlen = ++i; + if ( lenlen > 4 ) + return( -1 ); + lenlen |= 0x80; + + /* write the length of the length */ + if ( ber_write( ber, &lenlen, 1, nosos ) != 1 ) + return( -1 ); + + /* write the length itself */ + netlen = LBER_HTONL( len ); + if ( ber_write( ber, (char *) &netlen + (sizeof(ber_int_t) - i), i, nosos ) + != i ) + return( -1 ); + + return( i + 1 ); +} + +static int +ber_put_int_or_enum( BerElement *ber, ber_int_t num, ber_tag_t tag ) +{ + int i, sign, taglen; + int len, lenlen; + ber_int_t netnum, mask; + + sign = (num < 0); + + /* + * high bit is set - look for first non-all-one byte + * high bit is clear - look for first non-all-zero byte + */ + for ( i = sizeof(ber_int_t) - 1; i > 0; i-- ) { + mask = (LENMASK1 << (i * 8)); + + if ( sign ) { + /* not all ones */ + if ( (num & mask) != mask ) + break; + } else { + /* not all zero */ + if ( num & mask ) + break; + } + } + + /* + * we now have the "leading byte". if the high bit on this + * byte matches the sign bit, we need to "back up" a byte. + */ + mask = (num & (_MASK << (i * 8))); + if ( (mask && !sign) || (sign && !mask) ) + i++; + + len = i + 1; + + if ( (taglen = ber_put_tag( ber, tag, 0 )) == -1 ) + return( -1 ); + + if ( (lenlen = ber_put_len( ber, len, 0 )) == -1 ) + return( -1 ); + i++; + netnum = LBER_HTONL( num ); + if ( ber_write( ber, (char *) &netnum + (sizeof(ber_int_t) - i), i, 0 ) + == i) + /* length of tag + length + contents */ + return( taglen + lenlen + i ); + + return( -1 ); +} + +int +LDAP_CALL +ber_put_enum( BerElement *ber, ber_int_t num, ber_tag_t tag ) +{ + if ( tag == LBER_DEFAULT ) + tag = LBER_ENUMERATED; + + return( ber_put_int_or_enum( ber, num, tag ) ); +} + +int +LDAP_CALL +ber_put_int( BerElement *ber, ber_int_t num, ber_tag_t tag ) +{ + if ( tag == LBER_DEFAULT ) + tag = LBER_INTEGER; + + return( ber_put_int_or_enum( ber, num, tag ) ); +} + +int +LDAP_CALL +ber_put_ostring( BerElement *ber, char *str, ber_len_t len, + ber_tag_t tag ) +{ + int taglen, lenlen, rc; +#ifdef STR_TRANSLATION + int free_str; +#endif /* STR_TRANSLATION */ + + if ( tag == LBER_DEFAULT ) + tag = LBER_OCTETSTRING; + + if ( (taglen = ber_put_tag( ber, tag, 0 )) == -1 ) + return( -1 ); + +#ifdef STR_TRANSLATION + if ( len > 0 && ( ber->ber_options & LBER_OPT_TRANSLATE_STRINGS ) != 0 + && ber->ber_encode_translate_proc != NULL ) { + if ( (*(ber->ber_encode_translate_proc))( &str, &len, 0 ) + != 0 ) { + return( -1 ); + } + free_str = 1; + } else { + free_str = 0; + } +#endif /* STR_TRANSLATION */ + + /* + * Note: below is a spot where we limit ber_write + * to signed long (instead of unsigned long) + */ + + if ( (lenlen = ber_put_len( ber, len, 0 )) == -1 || + ber_write( ber, str, len, 0 ) != (ber_int_t) len ) { + rc = -1; + } else { + /* return length of tag + length + contents */ + rc = taglen + lenlen + len; + } + +#ifdef STR_TRANSLATION + if ( free_str ) { + NSLBERI_FREE( str ); + } +#endif /* STR_TRANSLATION */ + + return( rc ); +} + +int +LDAP_CALL +ber_put_string( BerElement *ber, char *str, ber_tag_t tag ) +{ + return( ber_put_ostring( ber, str, (ber_len_t) strlen( str ), tag )); +} + +int +LDAP_CALL +ber_put_bitstring( BerElement *ber, char *str, + ber_len_t blen /* in bits */, ber_tag_t tag ) +{ + int taglen, lenlen, len; + unsigned char unusedbits; + + if ( tag == LBER_DEFAULT ) + tag = LBER_BITSTRING; + + if ( (taglen = ber_put_tag( ber, tag, 0 )) == -1 ) + return( -1 ); + + len = ( blen + 7 ) / 8; + unusedbits = (unsigned char) (len * 8 - blen); + if ( (lenlen = ber_put_len( ber, len + 1, 0 )) == -1 ) + return( -1 ); + + if ( ber_write( ber, (char *)&unusedbits, 1, 0 ) != 1 ) + return( -1 ); + + if ( ber_write( ber, str, len, 0 ) != len ) + return( -1 ); + + /* return length of tag + length + unused bit count + contents */ + return( taglen + 1 + lenlen + len ); +} + +int +LDAP_CALL +ber_put_null( BerElement *ber, ber_tag_t tag ) +{ + int taglen; + + if ( tag == LBER_DEFAULT ) + tag = LBER_NULL; + + if ( (taglen = ber_put_tag( ber, tag, 0 )) == -1 ) + return( -1 ); + + if ( ber_put_len( ber, 0, 0 ) != 1 ) + return( -1 ); + + return( taglen + 1 ); +} + +int +LDAP_CALL +ber_put_boolean( BerElement *ber, int boolval, ber_tag_t tag ) +{ + int taglen; + unsigned char trueval = 0xff; + unsigned char falseval = 0x00; + + if ( tag == LBER_DEFAULT ) + tag = LBER_BOOLEAN; + + if ( (taglen = ber_put_tag( ber, tag, 0 )) == -1 ) + return( -1 ); + + if ( ber_put_len( ber, 1, 0 ) != 1 ) + return( -1 ); + + if ( ber_write( ber, (char *)(boolval ? &trueval : &falseval), 1, 0 ) + != 1 ) + return( -1 ); + + return( taglen + 2 ); +} + +#define FOUR_BYTE_LEN 5 + + +/* the idea here is roughly this: we maintain a stack of these Seqorset + * structures. This is pushed when we see the beginning of a new set or + * sequence. It is popped when we see the end of a set or sequence. + * Since we don't want to malloc and free these structures all the time, + * we pre-allocate a small set of them within the ber element structure. + * thus we need to spot when we've overflowed this stack and fall back to + * malloc'ing instead. + */ +static int +ber_start_seqorset( BerElement *ber, ber_tag_t tag ) +{ + Seqorset *new_sos; + + /* can we fit into the local stack ? */ + if (ber->ber_sos_stack_posn < SOS_STACK_SIZE) { + /* yes */ + new_sos = &ber->ber_sos_stack[ber->ber_sos_stack_posn]; + } else { + /* no */ + if ( (new_sos = (Seqorset *)NSLBERI_MALLOC( sizeof(Seqorset))) + == NULLSEQORSET ) { + return( -1 ); + } + } + ber->ber_sos_stack_posn++; + + if ( ber->ber_sos == NULLSEQORSET ) + new_sos->sos_first = ber->ber_ptr; + else + new_sos->sos_first = ber->ber_sos->sos_ptr; + + /* Set aside room for a 4 byte length field */ + new_sos->sos_ptr = new_sos->sos_first + ber_calc_taglen( tag ) + FOUR_BYTE_LEN; + new_sos->sos_tag = tag; + + new_sos->sos_next = ber->ber_sos; + new_sos->sos_clen = 0; + + ber->ber_sos = new_sos; + if (ber->ber_sos->sos_ptr > ber->ber_end) { + nslberi_ber_realloc(ber, ber->ber_sos->sos_ptr - ber->ber_end); + } + return( 0 ); +} + +int +LDAP_CALL +ber_start_seq( BerElement *ber, ber_tag_t tag ) +{ + if ( tag == LBER_DEFAULT ) + tag = LBER_SEQUENCE; + + return( ber_start_seqorset( ber, tag ) ); +} + +int +LDAP_CALL +ber_start_set( BerElement *ber, ber_tag_t tag ) +{ + if ( tag == LBER_DEFAULT ) + tag = LBER_SET; + + return( ber_start_seqorset( ber, tag ) ); +} + +static int +ber_put_seqorset( BerElement *ber ) +{ + ber_len_t len, netlen; + int taglen, lenlen; + unsigned char ltag = 0x80 + FOUR_BYTE_LEN - 1; + Seqorset *next; + Seqorset **sos = &ber->ber_sos; + + /* + * If this is the toplevel sequence or set, we need to actually + * write the stuff out. Otherwise, it's already been put in + * the appropriate buffer and will be written when the toplevel + * one is written. In this case all we need to do is update the + * length and tag. + */ + + len = (*sos)->sos_clen; + netlen = LBER_HTONL( len ); + if ( sizeof(ber_int_t) > 4 && len > LENMASK4 ) + return( -1 ); + + if ( ber->ber_options & LBER_OPT_USE_DER ) { + lenlen = ber_calc_lenlen( len ); + } else { + lenlen = FOUR_BYTE_LEN; + } + + if ( (next = (*sos)->sos_next) == NULLSEQORSET ) { + /* write the tag */ + if ( (taglen = ber_put_tag( ber, (*sos)->sos_tag, 1 )) == -1 ) + return( -1 ); + + if ( ber->ber_options & LBER_OPT_USE_DER ) { + /* Write the length in the minimum # of octets */ + if ( ber_put_len( ber, len, 1 ) == -1 ) + return( -1 ); + + if (lenlen != FOUR_BYTE_LEN) { + /* + * We set aside FOUR_BYTE_LEN bytes for + * the length field. Move the data if + * we don't actually need that much + */ + SAFEMEMCPY( (*sos)->sos_first + taglen + + lenlen, (*sos)->sos_first + taglen + + FOUR_BYTE_LEN, len ); + } + } else { + /* Fill FOUR_BYTE_LEN bytes for length field */ + /* one byte of length length */ + if ( ber_write( ber, (char *)<ag, 1, 1 ) != 1 ) + return( -1 ); + + /* the length itself */ + if ( ber_write( ber, (char *) &netlen + sizeof(ber_int_t) + - (FOUR_BYTE_LEN - 1), FOUR_BYTE_LEN - 1, 1 ) + != FOUR_BYTE_LEN - 1 ) + return( -1 ); + } + /* The ber_ptr is at the set/seq start - move it to the end */ + ber->ber_ptr += len; + } else { + ber_tag_t ntag; + + /* the tag */ + taglen = ber_calc_taglen( (*sos)->sos_tag ); + ntag = LBER_HTONL( (*sos)->sos_tag ); + SAFEMEMCPY( (*sos)->sos_first, (char *) &ntag + + sizeof(ber_int_t) - taglen, taglen ); + + if ( ber->ber_options & LBER_OPT_USE_DER ) { + ltag = (lenlen == 1) ? (unsigned char)len : + (unsigned char) (0x80 + (lenlen - 1)); + } + + /* one byte of length length */ + SAFEMEMCPY( (*sos)->sos_first + 1, <ag, 1 ); + + if ( ber->ber_options & LBER_OPT_USE_DER ) { + if (lenlen > 1) { + /* Write the length itself */ + SAFEMEMCPY( (*sos)->sos_first + 2, + (char *)&netlen + sizeof(ber_uint_t) - + (lenlen - 1), + lenlen - 1 ); + } + if (lenlen != FOUR_BYTE_LEN) { + /* + * We set aside FOUR_BYTE_LEN bytes for + * the length field. Move the data if + * we don't actually need that much + */ + SAFEMEMCPY( (*sos)->sos_first + taglen + + lenlen, (*sos)->sos_first + taglen + + FOUR_BYTE_LEN, len ); + } + } else { + /* the length itself */ + SAFEMEMCPY( (*sos)->sos_first + taglen + 1, + (char *) &netlen + sizeof(ber_int_t) - + (FOUR_BYTE_LEN - 1), FOUR_BYTE_LEN - 1 ); + } + + next->sos_clen += (taglen + lenlen + len); + next->sos_ptr += (taglen + lenlen + len); + } + + /* we're done with this seqorset, so free it up */ + /* was this one from the local stack ? */ + if (ber->ber_sos_stack_posn <= SOS_STACK_SIZE) { + /* yes */ + } else { + /* no */ + NSLBERI_FREE( (char *) (*sos) ); + } + ber->ber_sos_stack_posn--; + *sos = next; + + return( taglen + lenlen + len ); +} + +int +LDAP_CALL +ber_put_seq( BerElement *ber ) +{ + return( ber_put_seqorset( ber ) ); +} + +int +LDAP_CALL +ber_put_set( BerElement *ber ) +{ + return( ber_put_seqorset( ber ) ); +} + +/* VARARGS */ +int +LDAP_C +ber_printf( BerElement *ber, const char *fmt, ... ) +{ + va_list ap; + char *s, **ss; + struct berval **bv; + int rc, i; + ber_len_t len; + + va_start( ap, fmt ); + +#ifdef LDAP_DEBUG + if ( lber_debug & 64 ) { + char msg[80]; + sprintf( msg, "ber_printf fmt (%s)\n", fmt ); + ber_err_print( msg ); + } +#endif + + for ( rc = 0; *fmt && rc != -1; fmt++ ) { + switch ( *fmt ) { + case 'b': /* boolean */ + i = va_arg( ap, int ); + rc = ber_put_boolean( ber, i, ber->ber_tag ); + break; + + case 'i': /* int */ + i = va_arg( ap, int ); + rc = ber_put_int( ber, (ber_int_t)i, ber->ber_tag ); + break; + + case 'e': /* enumeration */ + i = va_arg( ap, int ); + rc = ber_put_enum( ber, (ber_int_t)i, ber->ber_tag ); + break; + + case 'n': /* null */ + rc = ber_put_null( ber, ber->ber_tag ); + break; + + case 'o': /* octet string (non-null terminated) */ + s = va_arg( ap, char * ); + len = va_arg( ap, int ); + rc = ber_put_ostring( ber, s, len, ber->ber_tag ); + break; + + case 's': /* string */ + s = va_arg( ap, char * ); + rc = ber_put_string( ber, s, ber->ber_tag ); + break; + + case 'B': /* bit string */ + s = va_arg( ap, char * ); + len = va_arg( ap, int ); /* in bits */ + rc = ber_put_bitstring( ber, s, len, ber->ber_tag ); + break; + + case 't': /* tag for the next element */ + ber->ber_tag = va_arg( ap, ber_tag_t ); + ber->ber_usertag = 1; + break; + + case 'v': /* vector of strings */ + if ( (ss = va_arg( ap, char ** )) == NULL ) + break; + for ( i = 0; ss[i] != NULL; i++ ) { + if ( (rc = ber_put_string( ber, ss[i], + ber->ber_tag )) == -1 ) + break; + } + break; + + case 'V': /* sequences of strings + lengths */ + if ( (bv = va_arg( ap, struct berval ** )) == NULL ) + break; + for ( i = 0; bv[i] != NULL; i++ ) { + if ( (rc = ber_put_ostring( ber, bv[i]->bv_val, + bv[i]->bv_len, ber->ber_tag )) == -1 ) + break; + } + break; + + case '{': /* begin sequence */ + rc = ber_start_seq( ber, ber->ber_tag ); + break; + + case '}': /* end sequence */ + rc = ber_put_seqorset( ber ); + break; + + case '[': /* begin set */ + rc = ber_start_set( ber, ber->ber_tag ); + break; + + case ']': /* end set */ + rc = ber_put_seqorset( ber ); + break; + + default: { + char msg[80]; + sprintf( msg, "unknown fmt %c\n", *fmt ); + ber_err_print( msg ); + rc = -1; + break; + } + } + + if ( ber->ber_usertag == 0 ) + ber->ber_tag = LBER_DEFAULT; + else + ber->ber_usertag = 0; + } + + va_end( ap ); + + return( rc ); +} diff --git a/usr/src/lib/libldap5/sources/ldap/ber/io.c b/usr/src/lib/libldap5/sources/ldap/ber/io.c new file mode 100644 index 0000000000..2110501f09 --- /dev/null +++ b/usr/src/lib/libldap5/sources/ldap/ber/io.c @@ -0,0 +1,1363 @@ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + + +#pragma ident "%Z%%M% %I% %E% SMI" + + +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * The contents of this file are subject to the Netscape Public License + * Version 1.0 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of this code under the NPL is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998 Netscape Communications Corporation. All Rights + * Reserved. + */ + +/* + * 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. + */ +/* io.c - ber general i/o routines */ + +#include "lber-int.h" + +#define bergetc( sb, len ) ( sb->sb_ber.ber_end > sb->sb_ber.ber_ptr ? \ + (unsigned char)*sb->sb_ber.ber_ptr++ : \ + ber_filbuf( sb, len )) + +# ifdef macintosh +/* + * MacTCP/OpenTransport + */ +# define read( s, b, l ) tcpread( s, 0, (unsigned char *)b, l, NULL ) +# define MAX_WRITE 65535 +# define BerWrite( sb, b, l ) tcpwrite( sb->sb_sd, (unsigned char *)(b), (l<MAX_WRITE)? l : MAX_WRITE ) +# else /* macintosh */ +# if defined(_WIN32) || defined(_WINDOWS) || defined(XP_OS2) +/* + * 32-bit Windows Socket API (under Windows NT or Windows 95) + */ +# define read( s, b, l ) recv( s, b, l, 0 ) +# define BerWrite( s, b, l ) send( s->sb_sd, b, l, 0 ) +# else /* _WIN32 */ +/* + * everything else (Unix/BSD 4.3 socket API) + */ +# define BerWrite( sb, b, l ) write( sb->sb_sd, b, l ) +# define udp_read( sb, b, l, al ) recvfrom(sb->sb_sd, (char *)b, l, 0, \ + (struct sockaddr *)sb->sb_fromaddr, \ + (al = sizeof(struct sockaddr), &al)) +# define udp_write( sb, b, l ) sendto(sb->sb_sd, (char *)(b), l, 0, \ + (struct sockaddr *)sb->sb_useaddr, sizeof(struct sockaddr)) +# endif /* _WIN32 */ +# endif /* macintosh */ + +#ifndef udp_read +#define udp_read( sb, b, l, al ) CLDAP NOT SUPPORTED +#define udp_write( sb, b, l ) CLDAP NOT SUPPORTED +#endif /* udp_read */ + +#define EXBUFSIZ 1024 + +#ifdef LDAP_DEBUG +int lber_debug; +#endif + +/* + * function prototypes + */ +static void nslberi_install_compat_io_fns( Sockbuf *sb ); +static int nslberi_extread_compat( int s, void *buf, int len, + struct lextiof_socket_private *arg ); +static int nslberi_extwrite_compat( int s, const void *buf, int len, + struct lextiof_socket_private *arg ); + + +/* + * internal global structure for memory allocation callback functions + */ +static struct lber_memalloc_fns nslberi_memalloc_fns; + + +/* + * buffered read from "sb". + * returns value of first character read on success and -1 on error. + */ +static int +ber_filbuf( Sockbuf *sb, ber_slen_t len ) +{ + ssize_t rc; +#ifdef CLDAP + int addrlen; +#endif /* CLDAP */ + + if ( sb->sb_ber.ber_buf == NULL ) { + if ( (sb->sb_ber.ber_buf = (char *)NSLBERI_MALLOC( + READBUFSIZ )) == NULL ) { + return( -1 ); + } + sb->sb_ber.ber_flags &= ~LBER_FLAG_NO_FREE_BUFFER; + sb->sb_ber.ber_ptr = sb->sb_ber.ber_buf; + sb->sb_ber.ber_end = sb->sb_ber.ber_buf; + } + + if ( sb->sb_naddr > 0 ) { +#ifdef CLDAP + rc = udp_read(sb, sb->sb_ber.ber_buf, READBUFSIZ, addrlen ); +#ifdef LDAP_DEBUG + if ( lber_debug ) { + char msg[80]; + sprintf( msg, "ber_filbuf udp_read %d bytes\n", + rc ); + ber_err_print( msg ); + if ( lber_debug > 1 && rc > 0 ) + lber_bprint( sb->sb_ber.ber_buf, rc ); + } +#endif /* LDAP_DEBUG */ +#else /* CLDAP */ + rc = -1; +#endif /* CLDAP */ + } else { + if ( sb->sb_ext_io_fns.lbextiofn_read != NULL ) { + rc = sb->sb_ext_io_fns.lbextiofn_read( + sb->sb_sd, sb->sb_ber.ber_buf, + ((sb->sb_options & LBER_SOCKBUF_OPT_NO_READ_AHEAD) + && (len < READBUFSIZ)) ? len : READBUFSIZ, + sb->sb_ext_io_fns.lbextiofn_socket_arg ); + } else { + rc = read( sb->sb_sd, sb->sb_ber.ber_buf, + ((sb->sb_options & LBER_SOCKBUF_OPT_NO_READ_AHEAD) + && (len < READBUFSIZ)) ? len : READBUFSIZ ); + } + } + + if ( rc > 0 ) { + sb->sb_ber.ber_ptr = sb->sb_ber.ber_buf + 1; + sb->sb_ber.ber_end = sb->sb_ber.ber_buf + rc; + return( (unsigned char)*sb->sb_ber.ber_buf ); + } + + return( -1 ); +} + + +static ber_int_t +BerRead( Sockbuf *sb, char *buf, ber_slen_t len ) +{ + int c; + ber_int_t nread = 0; + + while ( len > 0 ) { + if ( (c = bergetc( sb, len )) < 0 ) { + if ( nread > 0 ) + break; + return( c ); + } + *buf++ = c; + nread++; + len--; + } + + return( nread ); +} + + +/* + * Note: ber_read() only uses the ber_end and ber_ptr elements of ber. + * Functions like ber_get_tag(), ber_skip_tag, and ber_peek_tag() rely on + * that fact, so if this code is changed to use any additional elements of + * the ber structure, those functions will need to be changed as well. + */ +ber_int_t +LDAP_CALL +ber_read( BerElement *ber, char *buf, ber_len_t len ) +{ + ber_len_t actuallen; + ber_uint_t nleft; + + nleft = ber->ber_end - ber->ber_ptr; + actuallen = nleft < len ? nleft : len; + + SAFEMEMCPY( buf, ber->ber_ptr, (size_t)actuallen ); + + ber->ber_ptr += actuallen; + + return( (ber_int_t)actuallen ); +} + +/* + * enlarge the ber buffer. + * return 0 on success, -1 on error. + */ +int +nslberi_ber_realloc( BerElement *ber, ber_len_t len ) +{ + ber_uint_t need, have, total; + size_t have_bytes; + Seqorset *s; + ber_int_t off; + char *oldbuf; + + have_bytes = ber->ber_end - ber->ber_buf; + have = have_bytes / EXBUFSIZ; + need = (len < EXBUFSIZ ? 1 : (len + (EXBUFSIZ - 1)) / EXBUFSIZ); + total = have * EXBUFSIZ + need * EXBUFSIZ; + + oldbuf = ber->ber_buf; + + if (ber->ber_buf == NULL) { + if ( (ber->ber_buf = (char *)NSLBERI_MALLOC( (size_t)total )) + == NULL ) { + return( -1 ); + } + ber->ber_flags &= ~LBER_FLAG_NO_FREE_BUFFER; + } else { + if ( ber->ber_flags & LBER_FLAG_NO_FREE_BUFFER ) { + /* transition to malloc'd buffer */ + if ( (ber->ber_buf = (char *)NSLBERI_MALLOC( + (size_t)total )) == NULL ) { + return( -1 ); + } + ber->ber_flags &= ~LBER_FLAG_NO_FREE_BUFFER; + /* copy existing data into new malloc'd buffer */ + SAFEMEMCPY( ber->ber_buf, oldbuf, have_bytes ); + } else { + if ( (ber->ber_buf = (char *)NSLBERI_REALLOC( + ber->ber_buf,(size_t)total )) == NULL ) { + return( -1 ); + } + } + } + + ber->ber_end = ber->ber_buf + total; + + /* + * If the stinking thing was moved, we need to go through and + * reset all the sos and ber pointers. Offsets would've been + * a better idea... oh well. + */ + + if ( ber->ber_buf != oldbuf ) { + ber->ber_ptr = ber->ber_buf + (ber->ber_ptr - oldbuf); + + for ( s = ber->ber_sos; s != NULLSEQORSET; s = s->sos_next ) { + off = s->sos_first - oldbuf; + s->sos_first = ber->ber_buf + off; + + off = s->sos_ptr - oldbuf; + s->sos_ptr = ber->ber_buf + off; + } + } + + return( 0 ); +} + +/* + * returns "len" on success and -1 on failure. + */ +ber_int_t +LDAP_CALL +ber_write( BerElement *ber, char *buf, ber_len_t len, int nosos ) +{ + if ( nosos || ber->ber_sos == NULL ) { + if ( ber->ber_ptr + len > ber->ber_end ) { + if ( nslberi_ber_realloc( ber, len ) != 0 ) + return( -1 ); + } + SAFEMEMCPY( ber->ber_ptr, buf, (size_t)len ); + ber->ber_ptr += len; + return( len ); + } else { + if ( ber->ber_sos->sos_ptr + len > ber->ber_end ) { + if ( nslberi_ber_realloc( ber, len ) != 0 ) + return( -1 ); + } + SAFEMEMCPY( ber->ber_sos->sos_ptr, buf, (size_t)len ); + ber->ber_sos->sos_ptr += len; + ber->ber_sos->sos_clen += len; + return( len ); + } +} + +void +LDAP_CALL +ber_free( BerElement *ber, int freebuf ) +{ + if ( ber != NULL ) { + if ( freebuf && + !(ber->ber_flags & LBER_FLAG_NO_FREE_BUFFER)) { + NSLBERI_FREE(ber->ber_buf); + } + NSLBERI_FREE( (char *) ber ); + } +} + +/* + * return >= 0 on success, -1 on failure. + */ +int +LDAP_CALL +ber_flush( Sockbuf *sb, BerElement *ber, int freeit ) +{ + ssize_t nwritten, towrite, rc; + + if ( ber->ber_rwptr == NULL ) { + ber->ber_rwptr = ber->ber_buf; + } else if (ber->ber_rwptr >= ber->ber_end) { + /* we will use the ber_rwptr to continue an exited flush, + so if rwptr is not within the buffer we return an error. */ + return( -1 ); + } + towrite = ber->ber_ptr - ber->ber_rwptr; + +#ifdef LDAP_DEBUG + if ( lber_debug ) { + char msg[80]; + sprintf( msg, "ber_flush: %ld bytes to sd %ld%s\n", towrite, + sb->sb_sd, ber->ber_rwptr != ber->ber_buf ? " (re-flush)" + : "" ); + ber_err_print( msg ); + if ( lber_debug > 1 ) + lber_bprint( ber->ber_rwptr, towrite ); + } +#endif +#if !defined(macintosh) && !defined(DOS) + if ( sb->sb_options & (LBER_SOCKBUF_OPT_TO_FILE | LBER_SOCKBUF_OPT_TO_FILE_ONLY) ) { + rc = write( sb->sb_copyfd, ber->ber_buf, towrite ); + if ( sb->sb_options & LBER_SOCKBUF_OPT_TO_FILE_ONLY ) { + return( (int)rc ); + } + } +#endif + + nwritten = 0; + do { + if (sb->sb_naddr > 0) { +#ifdef CLDAP + rc = udp_write( sb, ber->ber_buf + nwritten, + (size_t)towrite ); +#else /* CLDAP */ + rc = -1; +#endif /* CLDAP */ + if ( rc <= 0 ) + return( -1 ); + /* fake error if write was not atomic */ + if (rc < towrite) { +#if !defined( macintosh ) && !defined( DOS ) + errno = EMSGSIZE; /* For Win32, see portable.h */ +#endif + return( -1 ); + } + } else { + if ( sb->sb_ext_io_fns.lbextiofn_write != NULL ) { + if ( (rc = sb->sb_ext_io_fns.lbextiofn_write( + sb->sb_sd, ber->ber_rwptr, (size_t)towrite, + sb->sb_ext_io_fns.lbextiofn_socket_arg )) + <= 0 ) { + return( -1 ); + } + } else { + if ( (rc = BerWrite( sb, ber->ber_rwptr, + (size_t) towrite )) <= 0 ) { + return( -1 ); + } + } + } + towrite -= rc; + nwritten += rc; + ber->ber_rwptr += rc; + } while ( towrite > 0 ); + + if ( freeit ) + ber_free( ber, 1 ); + + return( 0 ); +} + + +/* we pre-allocate a buffer to save the extra malloc later */ +BerElement * +LDAP_CALL +ber_alloc_t( int options ) +{ + BerElement *ber; + + if ( (ber = (BerElement*)NSLBERI_CALLOC( 1, + sizeof(struct berelement) + EXBUFSIZ )) == NULL ) { + return( NULL ); + } + + /* + * for compatibility with the C LDAP API standard, we recognize + * LBER_USE_DER as LBER_OPT_USE_DER. See lber.h for a bit more info. + */ + if ( options & LBER_USE_DER ) { + options &= ~LBER_USE_DER; + options |= LBER_OPT_USE_DER; + } + + ber->ber_tag = LBER_DEFAULT; + ber->ber_options = options; + ber->ber_buf = (char*)ber + sizeof(struct berelement); + ber->ber_ptr = ber->ber_buf; + ber->ber_end = ber->ber_buf + EXBUFSIZ; + ber->ber_flags = LBER_FLAG_NO_FREE_BUFFER; + + return( ber ); +} + + +BerElement * +LDAP_CALL +ber_alloc() +{ + return( ber_alloc_t( 0 ) ); +} + +BerElement * +LDAP_CALL +der_alloc() +{ + return( ber_alloc_t( LBER_OPT_USE_DER ) ); +} + +BerElement * +LDAP_CALL +ber_dup( BerElement *ber ) +{ + BerElement *new; + + if ( (new = ber_alloc()) == NULL ) + return( NULL ); + + *new = *ber; + + return( new ); +} + + +void +LDAP_CALL +ber_init_w_nullchar( BerElement *ber, int options ) +{ + (void) memset( (char *)ber, '\0', sizeof(struct berelement) ); + ber->ber_tag = LBER_DEFAULT; + + /* + * For compatibility with the C LDAP API standard, we recognize + * LBER_USE_DER as LBER_OPT_USE_DER. See lber.h for a bit more info. + */ + if ( options & LBER_USE_DER ) { + options &= ~LBER_USE_DER; + options |= LBER_OPT_USE_DER; + } + + ber->ber_options = options; +} + + +void +LDAP_CALL +ber_reset( BerElement *ber, int was_writing ) +{ + if ( was_writing ) { + ber->ber_end = ber->ber_ptr; + ber->ber_ptr = ber->ber_buf; + } else { + ber->ber_ptr = ber->ber_end; + } + + ber->ber_rwptr = NULL; +} + + +#ifdef LDAP_DEBUG + +void +ber_dump( BerElement *ber, int inout ) +{ + char msg[128]; + sprintf( msg, "ber_dump: buf 0x%lx, ptr 0x%lx, rwptr 0x%lx, end 0x%lx\n", + ber->ber_buf, ber->ber_ptr, ber->ber_rwptr, ber->ber_end ); + ber_err_print( msg ); + if ( inout == 1 ) { + sprintf( msg, " current len %ld, contents:\n", + ber->ber_end - ber->ber_ptr ); + ber_err_print( msg ); + lber_bprint( ber->ber_ptr, ber->ber_end - ber->ber_ptr ); + } else { + sprintf( msg, " current len %ld, contents:\n", + ber->ber_ptr - ber->ber_buf ); + ber_err_print( msg ); + lber_bprint( ber->ber_buf, ber->ber_ptr - ber->ber_buf ); + } +} + +void +ber_sos_dump( Seqorset *sos ) +{ + char msg[80]; + ber_err_print ( "*** sos dump ***\n" ); + while ( sos != NULLSEQORSET ) { + sprintf( msg, "ber_sos_dump: clen %ld first 0x%lx ptr 0x%lx\n", + sos->sos_clen, sos->sos_first, sos->sos_ptr ); + ber_err_print( msg ); + sprintf( msg, " current len %ld contents:\n", + sos->sos_ptr - sos->sos_first ); + ber_err_print( msg ); + lber_bprint( sos->sos_first, sos->sos_ptr - sos->sos_first ); + + sos = sos->sos_next; + } + ber_err_print( "*** end dump ***\n" ); +} + +#endif + +/* return the tag - LBER_DEFAULT returned means trouble */ +static ber_tag_t +get_tag( Sockbuf *sb ) +{ + unsigned char xbyte; + ber_tag_t tag; + char *tagp; + int i; + + if ( (i = BerRead( sb, (char *) &xbyte, 1 )) != 1 ) { + return( LBER_DEFAULT ); + } + + if ( (xbyte & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) { + return( (ber_uint_t) xbyte ); + } + + tagp = (char *) &tag; + tagp[0] = xbyte; + for ( i = 1; i < sizeof(ber_int_t); i++ ) { + if ( BerRead( sb, (char *) &xbyte, 1 ) != 1 ) + return( LBER_DEFAULT ); + + tagp[i] = xbyte; + + if ( ! (xbyte & LBER_MORE_TAG_MASK) ) + break; + } + + /* tag too big! */ + if ( i == sizeof(ber_int_t) ) + return( LBER_DEFAULT ); + + /* want leading, not trailing 0's */ + return( tag >> (sizeof(ber_int_t) - i - 1) ); +} + +ber_tag_t +LDAP_CALL +ber_get_next( Sockbuf *sb, ber_len_t *len, BerElement *ber ) +{ + ber_tag_t tag = 0; + ber_len_t netlen; + ber_uint_t toread; + unsigned char lc; + ber_int_t rc; + int noctets, diff; + +#ifdef LDAP_DEBUG + if ( lber_debug ) + ber_err_print( "ber_get_next\n" ); +#endif + + /* + * Any ber element looks like this: tag length contents. + * Assuming everything's ok, we return the tag byte (we + * can assume a single byte), return the length in len, + * and the rest of the undecoded element in buf. + * + * Assumptions: + * 1) small tags (less than 128) + * 2) definite lengths + * 3) primitive encodings used whenever possible + */ + + /* + * first time through - malloc the buffer, set up ptrs, and + * read the tag and the length and as much of the rest as we can + */ + + if ( ber->ber_rwptr == NULL ) { + /* + * First, we read the tag. + */ + + if ( (tag = get_tag( sb )) == LBER_DEFAULT ) { + return( LBER_DEFAULT ); + } + ber->ber_tag = tag; + + /* + * 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 an unsigned + * long. + */ + + *len = netlen = 0; + if ( BerRead( sb, (char *) &lc, 1 ) != 1 ) { + return( LBER_DEFAULT ); + } + if ( lc & 0x80 ) { + noctets = (lc & 0x7f); + if ( noctets > sizeof(ber_uint_t) ) + return( LBER_DEFAULT ); + diff = sizeof(ber_uint_t) - noctets; + if ( BerRead( sb, (char *) &netlen + diff, noctets ) != + noctets ) { + return( LBER_DEFAULT ); + } + *len = LBER_NTOHL( netlen ); + } else { + *len = lc; + } + ber->ber_len = *len; + + /* + * Finally, malloc a buffer for the contents and read it in. + * It's this buffer that's passed to all the other ber decoding + * routines. + */ + +#if defined( DOS ) && !( defined( _WIN32 ) || defined(XP_OS2) ) + if ( *len > 65535 ) { /* DOS can't allocate > 64K */ + return( LBER_DEFAULT ); + } +#endif /* DOS && !_WIN32 */ + + if ( ( sb->sb_options & LBER_SOCKBUF_OPT_MAX_INCOMING_SIZE ) + && *len > sb->sb_max_incoming ) { + return( LBER_DEFAULT ); + } + + if ( (ber->ber_buf = (char *)NSLBERI_CALLOC( 1,(size_t)*len )) + == NULL ) { + return( LBER_DEFAULT ); + } + ber->ber_flags &= ~LBER_FLAG_NO_FREE_BUFFER; + ber->ber_ptr = ber->ber_buf; + ber->ber_end = ber->ber_buf + *len; + ber->ber_rwptr = ber->ber_buf; + } + + toread = (uintptr_t)ber->ber_end - (uintptr_t)ber->ber_rwptr; + do { + if ( (rc = BerRead( sb, ber->ber_rwptr, (ber_int_t)toread )) <= 0 ) { + return( LBER_DEFAULT ); + } + + toread -= rc; + ber->ber_rwptr += rc; + } while ( toread > 0 ); + +#ifdef LDAP_DEBUG + if ( lber_debug ) { + char msg[80]; + sprintf( msg, "ber_get_next: tag 0x%lx len %ld contents:\n", + tag, ber->ber_len ); + ber_err_print( msg ); + if ( lber_debug > 1 ) + ber_dump( ber, 1 ); + } +#endif + + *len = ber->ber_len; + ber->ber_rwptr = NULL; + return( ber->ber_tag ); +} + +Sockbuf * +LDAP_CALL +ber_sockbuf_alloc() +{ + return( (Sockbuf *)NSLBERI_CALLOC( 1, sizeof(struct sockbuf) ) ); +} + +void +LDAP_CALL +ber_sockbuf_free(Sockbuf *p) +{ + if ( p != NULL ) { + if ( p->sb_ber.ber_buf != NULL && + !(p->sb_ber.ber_flags & LBER_FLAG_NO_FREE_BUFFER) ) { + NSLBERI_FREE( p->sb_ber.ber_buf ); + } + NSLBERI_FREE(p); + } +} + +/* + * return 0 on success and -1 on error + */ +int +LDAP_CALL +ber_set_option( struct berelement *ber, int option, void *value ) +{ + + /* + * memory allocation callbacks are global, so it is OK to pass + * NULL for ber. Handle this as a special case. + */ + if ( option == LBER_OPT_MEMALLOC_FN_PTRS ) { + /* struct copy */ + nslberi_memalloc_fns = *((struct lber_memalloc_fns *)value); + return( 0 ); + } + + /* + * lber_debug is global, so it is OK to pass + * NULL for ber. Handle this as a special case. + */ + if ( option == LBER_OPT_DEBUG_LEVEL ) { +#ifdef LDAP_DEBUG + lber_debug = *(int *)value; +#endif + return( 0 ); + } + + /* + * all the rest require a non-NULL ber + */ + if ( !NSLBERI_VALID_BERELEMENT_POINTER( ber )) { + return( -1 ); + } + + switch ( option ) { + case LBER_OPT_USE_DER: + case LBER_OPT_TRANSLATE_STRINGS: + if ( value != NULL ) { + ber->ber_options |= option; + } else { + ber->ber_options &= ~option; + } + break; + case LBER_OPT_REMAINING_BYTES: + ber->ber_end = ber->ber_ptr + *((ber_uint_t *)value); + break; + case LBER_OPT_TOTAL_BYTES: + ber->ber_end = ber->ber_buf + *((ber_uint_t *)value); + break; + case LBER_OPT_BYTES_TO_WRITE: + ber->ber_ptr = ber->ber_buf + *((ber_uint_t *)value); + break; + default: + return( -1 ); + } + + return( 0 ); +} + +/* + * return 0 on success and -1 on error + */ +int +LDAP_CALL +ber_get_option( struct berelement *ber, int option, void *value ) +{ + /* + * memory callocation callbacks are global, so it is OK to pass + * NULL for ber. Handle this as a special case + */ + if ( option == LBER_OPT_MEMALLOC_FN_PTRS ) { + /* struct copy */ + *((struct lber_memalloc_fns *)value) = nslberi_memalloc_fns; + return( 0 ); + } + + /* + * lber_debug is global, so it is OK to pass + * NULL for ber. Handle this as a special case. + */ + if ( option == LBER_OPT_DEBUG_LEVEL ) { +#ifdef LDAP_DEBUG + *(int *)value = lber_debug; +#endif + return( 0 ); + } + /* + * all the rest require a non-NULL ber + */ + if ( !NSLBERI_VALID_BERELEMENT_POINTER( ber )) { + return( -1 ); + } + + switch ( option ) { + case LBER_OPT_USE_DER: + case LBER_OPT_TRANSLATE_STRINGS: + *((int *) value) = (ber->ber_options & option); + break; + case LBER_OPT_REMAINING_BYTES: + *((ber_uint_t *) value) = ber->ber_end - ber->ber_ptr; + break; + case LBER_OPT_TOTAL_BYTES: + *((ber_uint_t *) value) = ber->ber_end - ber->ber_buf; + break; + case LBER_OPT_BYTES_TO_WRITE: + *((ber_uint_t *) value) = ber->ber_ptr - ber->ber_buf; + break; + default: + return( -1 ); + } + + return( 0 ); +} + +/* + * return 0 on success and -1 on error + */ +int +LDAP_CALL +ber_sockbuf_set_option( Sockbuf *sb, int option, void *value ) +{ + struct lber_x_ext_io_fns *extiofns; + + if ( !NSLBERI_VALID_SOCKBUF_POINTER( sb )) { + return( -1 ); + } + + switch ( option ) { + case LBER_SOCKBUF_OPT_MAX_INCOMING_SIZE: + sb->sb_max_incoming = *((ber_uint_t *) value); + /* FALL */ + case LBER_SOCKBUF_OPT_TO_FILE: + case LBER_SOCKBUF_OPT_TO_FILE_ONLY: + case LBER_SOCKBUF_OPT_NO_READ_AHEAD: + if ( value != NULL ) { + sb->sb_options |= option; + } else { + sb->sb_options &= ~option; + } + break; + case LBER_SOCKBUF_OPT_DESC: + sb->sb_sd = *((LBER_SOCKET *) value); + break; + case LBER_SOCKBUF_OPT_COPYDESC: + sb->sb_copyfd = *((LBER_SOCKET *) value); + break; + case LBER_SOCKBUF_OPT_READ_FN: + sb->sb_io_fns.lbiof_read = (LDAP_IOF_READ_CALLBACK *) value; + nslberi_install_compat_io_fns( sb ); + break; + case LBER_SOCKBUF_OPT_WRITE_FN: + sb->sb_io_fns.lbiof_write = (LDAP_IOF_WRITE_CALLBACK *) value; + nslberi_install_compat_io_fns( sb ); + break; + case LBER_SOCKBUF_OPT_EXT_IO_FNS: + extiofns = (struct lber_x_ext_io_fns *) value; + if ( extiofns == NULL ) { /* remove */ + (void)memset( (char *)&sb->sb_ext_io_fns, '\0', + sizeof(sb->sb_ext_io_fns )); + } else if ( extiofns->lbextiofn_size + == LBER_X_EXTIO_FNS_SIZE ) { + /* struct copy */ + sb->sb_ext_io_fns = *extiofns; + } else { + return( -1 ); + } + break; + default: + return( -1 ); + } + + return( 0 ); +} + +/* + * return 0 on success and -1 on error + */ +int +LDAP_CALL +ber_sockbuf_get_option( Sockbuf *sb, int option, void *value ) +{ + struct lber_x_ext_io_fns *extiofns; + + if ( !NSLBERI_VALID_SOCKBUF_POINTER( sb )) { + return( -1 ); + } + + switch ( option ) { + case LBER_SOCKBUF_OPT_MAX_INCOMING_SIZE: + *((ber_uint_t *) value) = sb->sb_max_incoming; + break; + case LBER_SOCKBUF_OPT_TO_FILE: + case LBER_SOCKBUF_OPT_TO_FILE_ONLY: + case LBER_SOCKBUF_OPT_NO_READ_AHEAD: + *((int *) value) = (sb->sb_options & option); + break; + case LBER_SOCKBUF_OPT_DESC: + *((LBER_SOCKET *) value) = sb->sb_sd; + break; + case LBER_SOCKBUF_OPT_COPYDESC: + *((LBER_SOCKET *) value) = sb->sb_copyfd; + break; + case LBER_SOCKBUF_OPT_READ_FN: + *((LDAP_IOF_READ_CALLBACK **) value) + = sb->sb_io_fns.lbiof_read; + break; + case LBER_SOCKBUF_OPT_WRITE_FN: + *((LDAP_IOF_WRITE_CALLBACK **) value) + = sb->sb_io_fns.lbiof_write; + break; + case LBER_SOCKBUF_OPT_EXT_IO_FNS: + extiofns = (struct lber_x_ext_io_fns *) value; + if ( extiofns == NULL || extiofns->lbextiofn_size + != LBER_X_EXTIO_FNS_SIZE ) { + return( -1 ); + } + /* struct copy */ + *extiofns = sb->sb_ext_io_fns; + break; + default: + return( -1 ); + } + + return( 0 ); +} + + +/* new dboreham code below: */ + +struct byte_buffer { + unsigned char *p; + int offset; + int length; +}; +typedef struct byte_buffer byte_buffer; + + +/* This call allocates us a BerElement structure plus some extra memory. + * It returns a pointer to the BerElement, plus a pointer to the extra memory. + * This routine also allocates a ber data buffer within the same block, thus + * saving a call to calloc later when we read data. + */ +void* +LDAP_CALL +ber_special_alloc(size_t size, BerElement **ppBer) +{ + char *mem = NULL; + + /* Make sure mem size requested is aligned */ + if (0 != ( size & 0x03 )) { + size += (sizeof(ber_int_t) - (size & 0x03)); + } + + mem = NSLBERI_MALLOC(sizeof(struct berelement) + EXBUFSIZ + size ); + if (NULL == mem) { + return NULL; + } + *ppBer = (BerElement*) (mem + size); + memset(*ppBer,0,sizeof(struct berelement)); + (*ppBer)->ber_tag = LBER_DEFAULT; + (*ppBer)->ber_buf = mem + size + sizeof(struct berelement); + (*ppBer)->ber_ptr = (*ppBer)->ber_buf; + (*ppBer)->ber_end = (*ppBer)->ber_buf + EXBUFSIZ; + (*ppBer)->ber_flags = LBER_FLAG_NO_FREE_BUFFER; + return (void*)mem; +} + +void +LDAP_CALL +ber_special_free(void* buf, BerElement *ber) +{ + if (!(ber->ber_flags & LBER_FLAG_NO_FREE_BUFFER)) { + NSLBERI_FREE(ber->ber_buf); + } + NSLBERI_FREE( buf ); +} + +static int +read_bytes(byte_buffer *b, unsigned char *return_buffer, int bytes_to_read) +{ + /* copy up to bytes_to_read bytes into the caller's buffer, return the number of bytes copied */ + int bytes_to_copy = 0; + + if (bytes_to_read <= (b->length - b->offset) ) { + bytes_to_copy = bytes_to_read; + } else { + bytes_to_copy = (b->length - b->offset); + } + if (1 == bytes_to_copy) { + *return_buffer = *(b->p+b->offset++); + } else + if (0 == bytes_to_copy) { + ; + } else + { + memcpy(return_buffer,b->p+b->offset,bytes_to_copy); + b->offset += bytes_to_copy; + } + return bytes_to_copy; +} + +/* return the tag - LBER_DEFAULT returned means trouble */ +static ber_tag_t +get_buffer_tag(byte_buffer *sb ) +{ + unsigned char xbyte; + ber_tag_t tag; + char *tagp; + int i; + + if ( (i = read_bytes( sb, &xbyte, 1 )) != 1 ) { + return( LBER_DEFAULT ); + } + + if ( (xbyte & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) { + return( (ber_uint_t) xbyte ); + } + + tagp = (char *) &tag; + tagp[0] = xbyte; + for ( i = 1; i < sizeof(ber_int_t); i++ ) { + if ( read_bytes( sb, &xbyte, 1 ) != 1 ) + return( LBER_DEFAULT ); + + tagp[i] = xbyte; + + if ( ! (xbyte & LBER_MORE_TAG_MASK) ) + break; + } + + /* tag too big! */ + if ( i == sizeof(ber_int_t) ) + return( LBER_DEFAULT ); + + /* want leading, not trailing 0's */ + return( tag >> (sizeof(ber_int_t) - i - 1) ); +} + +/* Like ber_get_next, but from a byte buffer the caller already has. */ +/* Bytes_Scanned returns the number of bytes we actually looked at in the buffer. */ +/* ber_get_next_buffer is now implemented in terms of ber_get_next_buffer_ext */ +/* and is here for backward compatibility. This new function allows us to pass */ +/* the Sockbuf structure along */ + +ber_uint_t +LDAP_CALL +ber_get_next_buffer( void *buffer, size_t buffer_size, ber_len_t *len, + BerElement *ber, ber_uint_t *Bytes_Scanned ) +{ + return (ber_get_next_buffer_ext( buffer, buffer_size, len, ber, + Bytes_Scanned, NULL)); +} + +ber_uint_t +LDAP_CALL +ber_get_next_buffer_ext( void *buffer, size_t buffer_size, ber_len_t *len, + BerElement *ber, ber_uint_t *Bytes_Scanned, Sockbuf *sock ) +{ + ber_tag_t tag = 0; + ber_len_t netlen; + ber_uint_t toread; + unsigned char lc; + ssize_t rc; + int noctets, diff; + byte_buffer sb = {0}; + + + /* + * Any ber element looks like this: tag length contents. + * Assuming everything's ok, we return the tag byte (we + * can assume a single byte), return the length in len, + * and the rest of the undecoded element in buf. + * + * Assumptions: + * 1) small tags (less than 128) + * 2) definite lengths + * 3) primitive encodings used whenever possible + */ + + /* + * first time through - malloc the buffer, set up ptrs, and + * read the tag and the length and as much of the rest as we can + */ + + sb.p = buffer; + sb.length = buffer_size; + + if ( ber->ber_rwptr == NULL ) { + /* + * First, we read the tag. + */ + + if ( (tag = get_buffer_tag( &sb )) == LBER_DEFAULT ) { + goto premature_exit; + } + ber->ber_tag = tag; + + /* + * 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 an unsigned + * long. + */ + + *len = netlen = 0; + if ( read_bytes( &sb, &lc, 1 ) != 1 ) { + goto premature_exit; + } + if ( lc & 0x80 ) { + noctets = (lc & 0x7f); + if ( noctets > sizeof(ber_uint_t) ) + goto premature_exit; + diff = sizeof(ber_uint_t) - noctets; + if ( read_bytes( &sb, (unsigned char *)&netlen + diff, + noctets ) != noctets ) { + goto premature_exit; + } + *len = LBER_NTOHL( netlen ); + } else { + *len = lc; + } + ber->ber_len = *len; + + /* + * Finally, malloc a buffer for the contents and read it in. + * It's this buffer that's passed to all the other ber decoding + * routines. + */ + +#if defined( DOS ) && !defined( _WIN32 ) + if ( *len > 65535 ) { /* DOS can't allocate > 64K */ + goto premature_exit; + } +#endif /* DOS && !_WIN32 */ + + if ( (sock != NULL) && + ( sock->sb_options & LBER_SOCKBUF_OPT_MAX_INCOMING_SIZE ) + && (*len > sock->sb_max_incoming) ) { + return( LBER_DEFAULT ); + } + + if ( ber->ber_buf + *len > ber->ber_end ) { + if ( nslberi_ber_realloc( ber, *len ) != 0 ) + goto premature_exit; + } + ber->ber_ptr = ber->ber_buf; + ber->ber_end = ber->ber_buf + *len; + ber->ber_rwptr = ber->ber_buf; + } + + toread = (uintptr_t)ber->ber_end - (uintptr_t)ber->ber_rwptr; + do { + if ( (rc = read_bytes( &sb, (unsigned char *)ber->ber_rwptr, + (ber_int_t)toread )) <= 0 ) { + goto premature_exit; + } + + toread -= rc; + ber->ber_rwptr += rc; + } while ( toread > 0 ); + + *len = ber->ber_len; + *Bytes_Scanned = sb.offset; + return( ber->ber_tag ); + +premature_exit: + /* + * we're here because we hit the end of the buffer before seeing + * all of the PDU + */ + *Bytes_Scanned = sb.offset; + return(LBER_DEFAULT); +} + + +/* The ber_flatten routine allocates a struct berval whose contents + * are a BER encoding taken from the ber argument. The bvPtr pointer + * points to the returned berval, which must be freed using + * ber_bvfree(). This routine returns 0 on success and -1 on error. + * The use of ber_flatten on a BerElement in which all '{' and '}' + * format modifiers have not been properly matched can result in a + * berval whose contents are not a valid BER encoding. + * Note that the ber_ptr is not modified. + */ +int +LDAP_CALL +ber_flatten( BerElement *ber, struct berval **bvPtr ) +{ + struct berval *new; + ber_len_t len; + + /* allocate a struct berval */ + if ( (new = (struct berval *)NSLBERI_MALLOC( sizeof(struct berval) )) + == NULL ) { + return( -1 ); + } + + /* + * Copy everything from the BerElement's ber_buf to ber_ptr + * into the berval structure. + */ + if ( ber == NULL ) { + new->bv_val = NULL; + new->bv_len = 0; + } else { + len = ber->ber_ptr - ber->ber_buf; + if ( ( new->bv_val = (char *)NSLBERI_MALLOC( len + 1 )) == NULL ) { + ber_bvfree( new ); + return( -1 ); + } + SAFEMEMCPY( new->bv_val, ber->ber_buf, (size_t)len ); + new->bv_val[len] = '\0'; + new->bv_len = len; + } + + /* set bvPtr pointer to point to the returned berval */ + *bvPtr = new; + + return( 0 ); +} + + +/* + * The ber_init function constructs and returns a new BerElement + * containing a copy of the data in the bv argument. ber_init + * returns the null pointer on error. + */ +BerElement * +LDAP_CALL +ber_init( const struct berval *bv ) +{ + BerElement *ber; + + /* construct BerElement */ + if (( ber = ber_alloc_t( 0 )) != NULLBER ) { + /* copy data from the bv argument into BerElement */ + /* XXXmcs: had to cast unsigned long bv_len to long */ + if ( (ber_write ( ber, bv->bv_val, bv->bv_len, 0 )) + != (ber_slen_t)bv->bv_len ) { + ber_free( ber, 1 ); + return( NULL ); + } + } + + /* + * reset ber_ptr back to the beginning of buffer so that this new + * and initialized ber element can be READ + */ + ber_reset( ber, 1); + + /* + * return a ptr to a new BerElement containing a copy of the data + * in the bv argument or a null pointer on error + */ + return( ber ); +} + + +/* + * memory allocation functions. + */ +void * +nslberi_malloc( size_t size ) +{ + return( nslberi_memalloc_fns.lbermem_malloc == NULL ? + malloc( size ) : + nslberi_memalloc_fns.lbermem_malloc( size )); +} + + +void * +nslberi_calloc( size_t nelem, size_t elsize ) +{ + return( nslberi_memalloc_fns.lbermem_calloc == NULL ? + calloc( nelem, elsize ) : + nslberi_memalloc_fns.lbermem_calloc( nelem, elsize )); +} + + +void * +nslberi_realloc( void *ptr, size_t size ) +{ + return( nslberi_memalloc_fns.lbermem_realloc == NULL ? + realloc( ptr, size ) : + nslberi_memalloc_fns.lbermem_realloc( ptr, size )); +} + + +void +nslberi_free( void *ptr ) +{ + if ( nslberi_memalloc_fns.lbermem_free == NULL ) { + free( ptr ); + } else { + nslberi_memalloc_fns.lbermem_free( ptr ); + } +} + + +/* + ****************************************************************************** + * functions to bridge the gap between new extended I/O functions that are + * installed using ber_sockbuf_set_option( ..., LBER_SOCKBUF_OPT_EXT_IO_FNS, + * ... ). + * + * the basic strategy is to use the new extended arg to hold a pointer to the + * Sockbuf itself so we can find the old functions and call them. + * note that the integer socket s passed in is not used. we use the sb_sd + * from the Sockbuf itself because it is the correct type. + */ +static int +nslberi_extread_compat( int s, void *buf, int len, + struct lextiof_socket_private *arg ) +{ + Sockbuf *sb = (Sockbuf *)arg; + + return( sb->sb_io_fns.lbiof_read( sb->sb_sd, buf, len )); +} + + +static int +nslberi_extwrite_compat( int s, const void *buf, int len, + struct lextiof_socket_private *arg ) +{ + Sockbuf *sb = (Sockbuf *)arg; + + return( sb->sb_io_fns.lbiof_write( sb->sb_sd, buf, len )); +} + + +/* + * Install I/O compatiblity functions. This can't fail. + */ +static void +nslberi_install_compat_io_fns( Sockbuf *sb ) +{ + sb->sb_ext_io_fns.lbextiofn_size = LBER_X_EXTIO_FNS_SIZE; + sb->sb_ext_io_fns.lbextiofn_read = nslberi_extread_compat; + sb->sb_ext_io_fns.lbextiofn_write = nslberi_extwrite_compat; + sb->sb_ext_io_fns.lbextiofn_socket_arg = (void *)sb; +} +/* + * end of compat I/O functions + ****************************************************************************** + */ diff --git a/usr/src/lib/libldap5/sources/ldap/ber/lber-int.h b/usr/src/lib/libldap5/sources/ldap/ber/lber-int.h new file mode 100644 index 0000000000..07e59b6a45 --- /dev/null +++ b/usr/src/lib/libldap5/sources/ldap/ber/lber-int.h @@ -0,0 +1,296 @@ +/* + * Copyright 2001-2003 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + + +#pragma ident "%Z%%M% %I% %E% SMI" + + +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * The contents of this file are subject to the Netscape Public License + * Version 1.0 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of the Original Code is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998-1999 Netscape Communications Corporation. All + * Rights Reserved. + */ + +/* + * 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. + */ +/* lbet-int.h - internal header file for liblber */ + +#ifndef _LBERINT_H +#define _LBERINT_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stdio.h> +#include <ctype.h> +#include <stdarg.h> +#include <stdlib.h> +#ifdef LDAP_SASLIO_HOOKS +#include <sasl/sasl.h> +#endif + +#ifdef macintosh +# include "ldap-macos.h" +#else /* macintosh */ +#if !defined(BSDI) +# include <malloc.h> +#endif +# include <errno.h> +# include <sys/types.h> +#if defined(SUNOS4) || defined(SCOOS) +# include <sys/time.h> +#endif +#if defined( _WINDOWS ) +# define WIN32_LEAN_AND_MEAN +# include <windows.h> +# include <time.h> +/* No stderr in a 16-bit Windows DLL */ +# if defined(_WINDLL) && !defined(_WIN32) +# define USE_DBG_WIN +# endif +# else +#if !defined(XP_OS2) +/* # include <sys/varargs.h> */ +# include <sys/socket.h> +# include <netinet/in.h> +# include <unistd.h> +#endif +# endif /* defined( _WINDOWS ) */ +#endif /* macintosh */ + +#include <memory.h> +#include <string.h> +#include "portable.h" + +#ifdef _WINDOWS +#include <winsock.h> +#include <io.h> +#endif /* _WINDOWS */ + +#ifdef XP_OS2 +#include <os2sock.h> +#include <io.h> +#endif /* XP_OS2 */ + +/* No stderr in a 16-bit Windows DLL */ +#if defined(_WINDLL) && !defined(_WIN32) +#define stderr NULL +#endif + +#include "lber.h" + +#ifdef _SOLARIS_SDK +#include <libintl.h> +#include "solaris-int.h" +#endif + +#ifdef macintosh +#define NSLDAPI_LBER_SOCKET_IS_PTR +#endif + +#define OLD_LBER_SEQUENCE 0x10 /* w/o constructed bit - broken */ +#define OLD_LBER_SET 0x11 /* w/o constructed bit - broken */ + +#ifndef _IFP +#define _IFP +typedef int (LDAP_C LDAP_CALLBACK *IFP)(); +#endif + +typedef struct seqorset { + ber_len_t sos_clen; + ber_tag_t sos_tag; + char *sos_first; + char *sos_ptr; + struct seqorset *sos_next; +} Seqorset; +#define NULLSEQORSET ((Seqorset *) 0) + +#define SOS_STACK_SIZE 8 /* depth of the pre-allocated sos structure stack */ + +struct berelement { + char *ber_buf; + char *ber_ptr; + char *ber_end; + struct seqorset *ber_sos; + ber_tag_t ber_tag; + ber_len_t ber_len; + int ber_usertag; + char ber_options; + char *ber_rwptr; + BERTranslateProc ber_encode_translate_proc; + BERTranslateProc ber_decode_translate_proc; + int ber_flags; +#define LBER_FLAG_NO_FREE_BUFFER 1 /* don't free ber_buf */ + int ber_sos_stack_posn; + Seqorset ber_sos_stack[SOS_STACK_SIZE]; +}; + +#ifndef _SOLARIS_SDK +#define NULLBER ((BerElement *)NULL) +#endif + +#ifdef LDAP_DEBUG +void ber_dump( BerElement *ber, int inout ); +#endif + + + +/* + * structure for read/write I/O callback functions. + */ +struct nslberi_io_fns { + LDAP_IOF_READ_CALLBACK *lbiof_read; + LDAP_IOF_WRITE_CALLBACK *lbiof_write; +}; + + +struct sockbuf { + LBER_SOCKET sb_sd; + BerElement sb_ber; + int sb_naddr; /* > 0 implies using CLDAP (UDP) */ + void *sb_useaddr; /* pointer to sockaddr to use next */ + void *sb_fromaddr; /* pointer to message source sockaddr */ + void **sb_addrs; /* actually an array of pointers to + sockaddrs */ + + int sb_options; /* to support copying ber elements */ + LBER_SOCKET sb_copyfd; /* for LBER_SOCKBUF_OPT_TO_FILE* opts */ + ber_uint_t sb_max_incoming; + + struct nslberi_io_fns + sb_io_fns; /* classic I/O callback functions */ + + struct lber_x_ext_io_fns + sb_ext_io_fns; /* extended I/O callback functions */ +#ifdef LDAP_SASLIO_HOOKS + sasl_conn_t *sb_sasl_ctx; /* pointer to sasl context */ + char *sb_sasl_ibuf; /* sasl decrypted input buffer */ + char *sb_sasl_iptr; /* current location in buffer */ + int sb_sasl_bfsz; /* Alloc'd size of input buffer */ + int sb_sasl_ilen; /* remaining length to process */ + struct lber_x_ext_io_fns + sb_sasl_fns; /* sasl redirect copy ext I/O funcs */ + void *sb_sasl_prld; /* reverse ld pointer for callbacks */ +#endif +}; +#define NULLSOCKBUF ((Sockbuf *)NULL) + + +#ifndef NSLBERI_LBER_INT_FRIEND +/* + * Everything from this point on is excluded if NSLBERI_LBER_INT_FRIEND is + * defined. The code under ../libraries/libldap defines this. + */ + +#define READBUFSIZ 8192 + +/* + * macros used to check validity of data structures and parameters + */ +#define NSLBERI_VALID_BERELEMENT_POINTER( ber ) \ + ( (ber) != NULLBER ) + +#define NSLBERI_VALID_SOCKBUF_POINTER( sb ) \ + ( (sb) != NULLSOCKBUF ) + + +#if defined(_WIN32) && defined(_ALPHA) +#define LBER_HTONL( _l ) \ + ((((_l)&0xff)<<24) + (((_l)&0xff00)<<8) + \ + (((_l)&0xff0000)>>8) + (((_l)&0xff000000)>>24)) +#define LBER_NTOHL(_l) LBER_HTONL(_l) + +#elif !defined(__alpha) || defined(VMS) + +#define LBER_HTONL( l ) htonl( l ) +#define LBER_NTOHL( l ) ntohl( l ) + +#else /* __alpha */ +/* + * htonl and ntohl on the DEC Alpha under OSF 1 seem to only swap the + * lower-order 32-bits of a (64-bit) long, so we define correct versions + * here. + */ +#define LBER_HTONL( l ) (((long)htonl( (l) & 0x00000000FFFFFFFF )) << 32 \ + | htonl( ( (l) & 0xFFFFFFFF00000000 ) >> 32 )) + +#define LBER_NTOHL( l ) (((long)ntohl( (l) & 0x00000000FFFFFFFF )) << 32 \ + | ntohl( ( (l) & 0xFFFFFFFF00000000 ) >> 32 )) +#endif /* __alpha */ + + +/* function prototypes */ +#ifdef LDAP_DEBUG +void lber_bprint( char *data, int len ); +#endif +void ber_err_print( char *data ); +void *nslberi_malloc( size_t size ); +void *nslberi_calloc( size_t nelem, size_t elsize ); +void *nslberi_realloc( void *ptr, size_t size ); +void nslberi_free( void *ptr ); +int nslberi_ber_realloc( BerElement *ber, ber_len_t len ); + + + +/* blame: dboreham + * slapd spends much of its time doing memcpy's for the ber code. + * Most of these are single-byte, so we special-case those and speed + * things up considerably. + */ + +#ifdef sunos4 +#define THEMEMCPY( d, s, n ) bcopy( s, d, n ) +#else /* sunos4 */ +#define THEMEMCPY( d, s, n ) memmove( d, s, n ) +#endif /* sunos4 */ + +#ifdef SAFEMEMCPY +#undef SAFEMEMCPY +#define SAFEMEMCPY(d,s,n) if (1 == n) *((char*)d) = *((char*)s); else THEMEMCPY(d,s,n); +#endif + +/* + * Memory allocation done in liblber should all go through one of the + * following macros. This is so we can plug-in alternative memory + * allocators, etc. as the need arises. + */ +#define NSLBERI_MALLOC( size ) nslberi_malloc( size ) +#define NSLBERI_CALLOC( nelem, elsize ) nslberi_calloc( nelem, elsize ) +#define NSLBERI_REALLOC( ptr, size ) nslberi_realloc( ptr, size ) +#define NSLBERI_FREE( ptr ) nslberi_free( ptr ) + +/* allow the library to access the debug variable */ + +extern int lber_debug; + +#endif /* !NSLBERI_LBER_INT_FRIEND */ + + +#ifdef __cplusplus +} +#endif +#endif /* _LBERINT_H */ |