X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Fliblber%2Fencode.c;h=741e269e3153758ee5a119b539495773134b9469;hb=0355abeb1a0ea471970c5313a69ce5b20916b408;hp=2474f6af5977732ff8834a3090439746f7576060;hpb=0e2af54a3ffdeebe3901370683be56fcc53023b0;p=openldap

diff --git a/libraries/liblber/encode.c b/libraries/liblber/encode.c
index 2474f6af59..741e269e31 100644
--- a/libraries/liblber/encode.c
+++ b/libraries/liblber/encode.c
@@ -1,11 +1,19 @@
-/* Encode.c - ber output encoding routines */
+/* encode.c - ber output encoding routines */
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2007 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
-/* Portions
- * Copyright (c) 1990 Regents of the University of Michigan.
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms are permitted
@@ -15,6 +23,10 @@
  * software without specific prior written permission. This software
  * is provided ``as is'' without express or implied warranty.
  */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
 
 #include "portable.h"
 
@@ -44,18 +56,20 @@ static int ber_put_int_or_enum LDAP_P((
 	ber_int_t num,
 	ber_tag_t tag ));
 
+#define	BER_TOP_BYTE(type)	(sizeof(type)-1)
+#define	BER_TOP_MASK(type)	((type)0xffU << (BER_TOP_BYTE(type)*8))
 
-static ber_len_t
+static int
 ber_calc_taglen( ber_tag_t tag )
 {
-	int	i;
-	ber_tag_t	mask;
+	int	i = BER_TOP_BYTE(ber_tag_t);
+	ber_tag_t	mask = BER_TOP_MASK(ber_tag_t);
 
 	/* find the first non-all-zero byte in the tag */
-	for ( i = sizeof(ber_tag_t) - 1; i > 0; i-- ) {
-		mask = ((ber_tag_t)0xffU << (i * 8));
+	for ( ; i > 0; i-- ) {
 		/* not all zero */
 		if ( tag & mask ) break;
+		mask >>= 8;
 	}
 
 	return i + 1;
@@ -68,8 +82,8 @@ ber_put_tag(
 	int nosos )
 {
 	int rc;
-	ber_len_t	taglen;
-	ber_len_t	i;
+	int taglen;
+	int	i;
 	unsigned char nettag[sizeof(ber_tag_t)];
 
 	assert( ber != NULL );
@@ -77,14 +91,12 @@ ber_put_tag(
 
 	taglen = ber_calc_taglen( tag );
 
-	for( i=0; i<taglen; i++ ) {
-		nettag[(sizeof(ber_tag_t)-1) - i] = (unsigned char)(tag & 0xffU);
+	for( i=taglen-1; i>=0; i-- ) {
+		nettag[i] = (unsigned char)(tag & 0xffU);
 		tag >>= 8;
 	}
 
-	rc = ber_write( ber,
-		&nettag[sizeof(ber_tag_t) - taglen],
-	    taglen, nosos );
+	rc = ber_write( ber, (char *) nettag, taglen, nosos );
 
 	return rc;
 }
@@ -97,20 +109,16 @@ ber_calc_lenlen( ber_len_t len )
 	 * with bit 8 0.
 	 */
 
-	if ( len <= (ber_len_t) 0x7FU )
-		return 1;
+	if ( len <= (ber_len_t) 0x7FU ) return 1;
 
 	/*
 	 * long len otherwise - one byte with bit 8 set, giving the
 	 * length of the length, followed by the length itself.
 	 */
 
-	if ( len <= (ber_len_t) 0xffU )
-		return 2;
-	if ( len <= (ber_len_t) 0xffffU )
-		return 3;
-	if ( len <= (ber_len_t) 0xffffffU )
-		return 4;
+	if ( len <= (ber_len_t) 0xffU ) return 2;
+	if ( len <= (ber_len_t) 0xffffU ) return 3;
+	if ( len <= (ber_len_t) 0xffffffU ) return 4;
 
 	return 5;
 }
@@ -143,34 +151,93 @@ ber_put_len( BerElement *ber, ber_len_t len, int nosos )
 	 */
 
 	/* find the first non-all-zero byte */
-	for ( i = sizeof(ber_len_t) - 1; i > 0; i-- ) {
-		mask = ((ber_len_t)0xffU << (i * 8));
+	i = BER_TOP_BYTE(ber_len_t);
+	mask = BER_TOP_MASK(ber_len_t);
+	for ( ; i > 0; i-- ) {
 		/* not all zero */
 		if ( len & mask ) break;
+		mask >>= 8;
 	}
 	lenlen = (unsigned char) ++i;
-	if ( lenlen > 4 )
-		return -1;
+	if ( lenlen > 4 ) return -1;
 
 	lenlen |= 0x80UL;
 
 	/* write the length of the length */
-	if ( ber_write( ber, &lenlen, 1, nosos ) != 1 )
-		return -1;
+	if ( ber_write( ber, &lenlen, 1, nosos ) != 1 ) return -1;
 
-	for( j=0; j<i; j++) {
-		netlen[(sizeof(ber_len_t)-1) - j] = (unsigned char)(len & 0xffU);
+	for( j=i-1; j>=0; j-- ) {
+		netlen[j] = (unsigned char)(len & 0xffU);
 		len >>= 8;
 	}
 
 	/* write the length itself */
-	rc = ber_write( ber,
-		&netlen[sizeof(ber_len_t)-i],
-		i, nosos );
+	rc = ber_write( ber, (char *) netlen, i, nosos );
 
 	return rc == i ?  i+1 : -1;
 }
 
+/* out->bv_len should be the buffer size on input */
+int
+ber_encode_oid( BerValue *in, BerValue *out )
+{
+	unsigned char *der = out->bv_val;
+	unsigned long val, val1;
+	int i, len;
+	char *ptr, *end, *inend;
+
+	assert( in != NULL );
+	assert( out != NULL );
+
+	if ( !out->bv_val || out->bv_len < in->bv_len )
+		return -1;
+
+	/* OIDs must have at least two components */
+	if ( sscanf( in->bv_val, "%ld.%ld", &val, &val1 ) != 2 )
+		return -1;
+
+	val *= 40;
+	val += val1;
+
+	inend = in->bv_val + in->bv_len;
+
+	ptr = strchr( in->bv_val, '.' );
+	ptr = strchr( ptr+1, '.' );
+	if ( ptr )
+		++ptr;
+	else
+		ptr = inend;
+
+	for (;;) {
+		if ( !val ) {
+			*der++ = 0;
+		} else {
+			int hibit = 0;
+			i = sizeof(unsigned long) + 1;
+			len = i;
+			for (;val;) {
+				i--;
+				val1 = val & 0x7f;
+				val >>= 7;
+				der[i] = val1 | hibit;
+				hibit = 0x80;
+			}
+			if ( i ) {
+				len -= i;
+				memcpy( der, der+i, len );
+			}
+			der += len;
+		}
+		if ( ptr >= inend ) break;
+		val = strtol( ptr, &end, 10 );
+		if ( ptr == end ) break;
+		if ( *end && *end != '.' ) break;
+		ptr = end + 1;
+	}
+	out->bv_len = (char *)der - out->bv_val;
+	return 0;
+}
+
 static int
 ber_put_int_or_enum(
 	BerElement *ber,
@@ -178,8 +245,8 @@ ber_put_int_or_enum(
 	ber_tag_t tag )
 {
 	int rc;
-	int	i, j, sign;
-	ber_len_t	len, lenlen, taglen;
+	int	i, j, sign, taglen, lenlen;
+	ber_len_t	len;
 	ber_uint_t	unum, mask;
 	unsigned char netnum[sizeof(ber_uint_t)];
 
@@ -193,9 +260,9 @@ ber_put_int_or_enum(
 	 * 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 = ((ber_uint_t)0xffU << (i * 8));
-
+	i = BER_TOP_BYTE(ber_int_t);
+	mask = BER_TOP_MASK(ber_uint_t);
+	for ( ; i > 0; i-- ) {
 		if ( sign ) {
 			/* not all ones */
 			if ( (unum & mask) != mask ) break;
@@ -203,6 +270,7 @@ ber_put_int_or_enum(
 			/* not all zero */
 			if ( unum & mask ) break;
 		}
+		mask >>= 8;
 	}
 
 	/*
@@ -220,18 +288,17 @@ ber_put_int_or_enum(
 		return -1;
 	}
 
-	if ( (lenlen = ber_put_len( ber, len, 0 )) == -1 )
+	if ( (lenlen = ber_put_len( ber, len, 0 )) == -1 ) {
 		return -1;
+	}
 	i++;
 
-	for( j=0; j<i; j++ ) {
-		netnum[(sizeof(ber_int_t)-1) - j] = (unsigned char)(unum & 0xffU);
+	for( j=i-1; j>=0; j-- ) {
+		netnum[j] = (unsigned char)(unum & 0xffU);
 		unum >>= 8;
 	}
 
-	rc = ber_write( ber,
-		&netnum[sizeof(ber_int_t) - i],
-		i, 0 );
+	rc = ber_write( ber, (char *) netnum, i, 0 );
 
 	/* length of tag + length + contents */
 	return rc == i ? taglen + lenlen + i : -1;
@@ -276,8 +343,7 @@ ber_put_ostring(
 	ber_len_t len,
 	ber_tag_t tag )
 {
-	ber_len_t	taglen, lenlen;
-	int rc;
+	int taglen, lenlen, rc;
 
 	assert( ber != NULL );
 	assert( str != NULL );
@@ -292,7 +358,8 @@ ber_put_ostring(
 		return -1;
 
 	if ( (lenlen = ber_put_len( ber, len, 0 )) == -1 ||
-		(ber_len_t) ber_write( ber, str, len, 0 ) != len ) {
+		(ber_len_t) ber_write( ber, str, len, 0 ) != len )
+	{
 		rc = -1;
 	} else {
 		/* return length of tag + length + contents */
@@ -305,7 +372,7 @@ ber_put_ostring(
 int
 ber_put_berval(
 	BerElement *ber,
-	LDAP_CONST struct berval *bv,
+	struct berval *bv,
 	ber_tag_t tag )
 {
 	assert( ber != NULL );
@@ -339,7 +406,8 @@ ber_put_bitstring(
 	ber_len_t blen /* in bits */,
 	ber_tag_t tag )
 {
-	ber_len_t		taglen, lenlen, len;
+	int				taglen, lenlen;
+	ber_len_t		len;
 	unsigned char	unusedbits;
 
 	assert( ber != NULL );
@@ -376,7 +444,7 @@ ber_put_bitstring(
 int
 ber_put_null( BerElement *ber, ber_tag_t tag )
 {
-	ber_len_t	taglen;
+	int	taglen;
 
 	assert( ber != NULL );
 	assert( LBER_VALID( ber ) );
@@ -402,9 +470,8 @@ ber_put_boolean(
 	ber_int_t boolval,
 	ber_tag_t tag )
 {
-	ber_len_t		taglen;
-	unsigned char	trueval = (unsigned char) -1;
-	unsigned char	falseval = 0;
+	int				taglen;
+	unsigned char	c;
 
 	assert( ber != NULL );
 	assert( LBER_VALID( ber ) );
@@ -420,9 +487,9 @@ ber_put_boolean(
 		return -1;
 	}
 
-	if ( ber_write( ber, (char *)(boolval ? &trueval : &falseval), 1, 0 )
-		!= 1 )
-	{
+	c = boolval ? (unsigned char) ~0U : (unsigned char) 0U;
+
+	if ( ber_write( ber, (char *) &c, 1, 0 ) != 1 ) {
 		return -1;
 	}
 
@@ -441,7 +508,7 @@ ber_start_seqorset(
 	assert( ber != NULL );
 	assert( LBER_VALID( ber ) );
 
-	new = (Seqorset *) LBER_CALLOC( 1, sizeof(Seqorset) );
+	new = (Seqorset *) ber_memcalloc_x( 1, sizeof(Seqorset), ber->ber_memctx );
 
 	if ( new == NULL ) {
 		return -1;
@@ -496,7 +563,8 @@ ber_put_seqorset( BerElement *ber )
 	int rc;
 	ber_len_t	len;
 	unsigned char netlen[sizeof(ber_len_t)];
-	ber_len_t	taglen, lenlen;
+	int			taglen;
+	ber_len_t	lenlen;
 	unsigned char	ltag = 0x80U + FOUR_BYTE_LEN - 1;
 	Seqorset	*next;
 	Seqorset	**sos = &ber->ber_sos;
@@ -528,19 +596,21 @@ ber_put_seqorset( BerElement *ber )
 	}
 
 	if( lenlen > 1 ) {
-		ber_len_t i;
-		for( i=0; i < lenlen-1; i++ ) {
-			netlen[(sizeof(ber_len_t)-1) - i] = 
-				(unsigned char)((len >> i*8) & 0xffU);
+		int i;
+		ber_len_t j = len;
+		for( i=lenlen-2; i >= 0; i-- ) {
+			netlen[i] = j & 0xffU;
+			j >>= 8;
 		}
 	} else {
-		netlen[sizeof(ber_len_t)-1] = (unsigned char)(len & 0x7fU);
+		netlen[0] = (unsigned char)(len & 0x7fU);
 	}
 
 	if ( (next = (*sos)->sos_next) == NULL ) {
 		/* write the tag */
-		if ( (taglen = ber_put_tag( ber, (*sos)->sos_tag, 1 )) == -1 )
+		if ( (taglen = ber_put_tag( ber, (*sos)->sos_tag, 1 )) == -1 ) {
 			return( -1 );
+		}
 
 		if ( ber->ber_options & LBER_USE_DER ) {
 			/* Write the length in the minimum # of octets */
@@ -566,9 +636,7 @@ ber_put_seqorset( BerElement *ber )
 			}
 
 			/* the length itself */
-			rc  = ber_write( ber,
-				&netlen[sizeof(ber_len_t) - (FOUR_BYTE_LEN-1)],
-				FOUR_BYTE_LEN-1, 1 );
+			rc  = ber_write( ber, (char *) netlen, FOUR_BYTE_LEN-1, 1 );
 
 			if( rc != FOUR_BYTE_LEN - 1 ) {
 				return -1;
@@ -578,7 +646,7 @@ ber_put_seqorset( BerElement *ber )
 		(*sos)->sos_ber->ber_ptr += len;
 
 	} else {
-		ber_len_t i;
+		int i;
 		unsigned char nettag[sizeof(ber_tag_t)];
 		ber_tag_t tmptag = (*sos)->sos_tag;
 
@@ -600,14 +668,12 @@ ber_put_seqorset( BerElement *ber )
 		/* the tag */
 		taglen = ber_calc_taglen( tmptag );
 
-		for( i = 0; i < taglen; i++ ) {
-			nettag[(sizeof(ber_tag_t)-1) - i] = (unsigned char)(tmptag & 0xffU);
+		for( i = taglen-1; i >= 0; i-- ) {
+			nettag[i] = (unsigned char)(tmptag & 0xffU);
 			tmptag >>= 8;
 		}
 
-		AC_FMEMCPY( (*sos)->sos_first,
-			&nettag[sizeof(ber_tag_t) - taglen],
-			taglen );
+		AC_FMEMCPY( (*sos)->sos_first, nettag, taglen );
 
 		if ( ber->ber_options & LBER_USE_DER ) {
 			ltag = (lenlen == 1)
@@ -621,9 +687,7 @@ ber_put_seqorset( BerElement *ber )
 		if ( ber->ber_options & LBER_USE_DER ) {
 			if (lenlen > 1) {
 				/* Write the length itself */
-				AC_FMEMCPY( (*sos)->sos_first + 2,
-				    &netlen[sizeof(ber_len_t) - (lenlen - 1)],
-					lenlen - 1 );
+				AC_FMEMCPY( (*sos)->sos_first + 2, netlen, lenlen - 1 );
 			}
 			if (lenlen != FOUR_BYTE_LEN) {
 				/*
@@ -638,8 +702,7 @@ ber_put_seqorset( BerElement *ber )
 		} else {
 			/* the length itself */
 			AC_FMEMCPY( (*sos)->sos_first + taglen + 1,
-			    &netlen[sizeof(ber_len_t) - (FOUR_BYTE_LEN - 1)],
-				FOUR_BYTE_LEN - 1 );
+			    netlen, FOUR_BYTE_LEN - 1 );
 		}
 
 		next->sos_clen += (taglen + lenlen + len);
@@ -647,7 +710,7 @@ ber_put_seqorset( BerElement *ber )
 	}
 
 	/* we're done with this seqorset, so free it up */
-	LBER_FREE( (char *) (*sos) );
+	ber_memfree_x( (char *) (*sos), ber->ber_memctx );
 	*sos = next;
 
 	return taglen + lenlen + len;
@@ -781,8 +844,8 @@ ber_printf( BerElement *ber, LDAP_CONST char *fmt, ... )
 			}
 			break;
 
-		case 'W':	/* BVarray */
-			if ( (bv = va_arg( ap, BVarray )) == NULL )
+		case 'W':	/* BerVarray */
+			if ( (bv = va_arg( ap, BerVarray )) == NULL )
 				break;
 			for ( i = 0; bv[i].bv_val != NULL; i++ ) {
 				if ( (rc = ber_put_berval( ber, &bv[i],
@@ -809,22 +872,18 @@ ber_printf( BerElement *ber, LDAP_CONST char *fmt, ... )
 
 		default:
 			if( ber->ber_debug ) {
-#ifdef NEW_LOGGING
-				LDAP_LOG(( "liblber", LDAP_LEVEL_ERR,
-					   "ber_printf: unknown fmt %c\n", *fmt ));
-#else
 				ber_log_printf( LDAP_DEBUG_ANY, ber->ber_debug,
 					"ber_printf: unknown fmt %c\n", *fmt );
-#endif
 			}
 			rc = -1;
 			break;
 		}
 
-		if ( ber->ber_usertag == 0 )
+		if ( ber->ber_usertag == 0 ) {
 			ber->ber_tag = LBER_DEFAULT;
-		else
+		} else {
 			ber->ber_usertag = 0;
+		}
 	}
 
 	va_end( ap );