Adding upstream version 2.6.7+dfsg.upstream/2.6.7+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 276 insertions, 0 deletions

diff --git a/servers/slapd/verbs.c b/servers/slapd/verbs.c
new file mode 100644
index 0000000..36c53e3
--- /dev/null
+++ b/servers/slapd/verbs.c
@@ -0,0 +1,276 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 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>.
+ */
+
+#include "portable.h"
+
+#include "slap.h"
+#include "slap-config.h"
+
+int
+bverb_to_mask( struct berval *bword, slap_verbmasks *v ) {
+	int i;
+	for ( i = 0; !BER_BVISNULL(&v[i].word); i++ ) {
+		if ( !ber_bvstrcasecmp( bword, &v[i].word) ) break;
+	}
+	return i;
+}
+
+int
+verb_to_mask( const char *word, slap_verbmasks *v ) {
+	struct berval	bword;
+	ber_str2bv( word, 0, 0, &bword );
+	return bverb_to_mask( &bword, v );
+}
+
+int
+verbs_to_mask( int argc, char *argv[], slap_verbmasks *v, slap_mask_t *m ) {
+	int i, j;
+	for (i = 1; i < argc; i++ ) {
+		j = verb_to_mask( argv[i], v );
+		if ( BER_BVISNULL(&v[j].word) ) return i;
+		while ( !v[j].mask ) j--;
+		*m |= v[j].mask;
+	}
+	return 0;
+}
+
+/*
+ * Mask keywords that represent multiple bits should occur before single
+ * bit keywords in the verbmasks array.
+ */
+int
+mask_to_verbs( slap_verbmasks *v, slap_mask_t m, BerVarray *bva ) {
+	int i, rc = 1;
+
+	if ( m ) {
+		for ( i=0; !BER_BVISNULL(&v[i].word); i++ ) {
+			if (!v[i].mask) continue;
+			if ( ( m & v[i].mask ) == v[i].mask ) {
+				value_add_one( bva, &v[i].word );
+				rc = 0;
+				m ^= v[i].mask;
+				if ( !m ) break;
+			}
+		}
+	}
+	return rc;
+}
+
+/* Return the verbs as a single string, separated by delim */
+int
+mask_to_verbstring( slap_verbmasks *v, slap_mask_t m0, char delim, struct berval *bv )
+{
+	int i, rc = 1;
+
+	BER_BVZERO( bv );
+	if ( m0 ) {
+		slap_mask_t m = m0;
+		char *ptr;
+		for ( i=0; !BER_BVISNULL(&v[i].word); i++ ) {
+			if ( !v[i].mask ) continue;
+			if ( ( m & v[i].mask ) == v[i].mask ) {
+				bv->bv_len += v[i].word.bv_len + 1;
+				rc = 0;
+				m ^= v[i].mask;
+				if ( !m ) break;
+			}
+		}
+		bv->bv_val = ch_malloc(bv->bv_len);
+		bv->bv_len--;
+		ptr = bv->bv_val;
+		m = m0;
+		for ( i=0; !BER_BVISNULL(&v[i].word); i++ ) {
+			if ( !v[i].mask ) continue;
+			if ( ( m & v[i].mask ) == v[i].mask ) {
+				ptr = lutil_strcopy( ptr, v[i].word.bv_val );
+				*ptr++ = delim;
+				m ^= v[i].mask;
+				if ( !m ) break;
+			}
+		}
+		ptr[-1] = '\0';
+	}
+	return rc;
+}
+
+/* Parse a verbstring */
+int
+verbstring_to_mask( slap_verbmasks *v, char *str, char delim, slap_mask_t *m ) {
+	int j;
+	char *d;
+	struct berval bv;
+
+	do {
+		bv.bv_val = str;
+		d = strchr( str, delim );
+		if ( d )
+			bv.bv_len = d - str;
+		else
+			bv.bv_len = strlen( str );
+		j = bverb_to_mask( &bv, v );
+		if ( BER_BVISNULL(&v[j].word) ) return 1;
+		while ( !v[j].mask ) j--;
+		*m |= v[j].mask;
+		str += bv.bv_len + 1;
+	} while ( d );
+	return 0;
+}
+
+int
+slap_verbmasks_init( slap_verbmasks **vp, slap_verbmasks *v )
+{
+	int		i;
+
+	assert( *vp == NULL );
+
+	for ( i = 0; !BER_BVISNULL( &v[ i ].word ); i++ ) /* EMPTY */;
+
+	*vp = ch_calloc( i + 1, sizeof( slap_verbmasks ) );
+
+	for ( i = 0; !BER_BVISNULL( &v[ i ].word ); i++ ) {
+		ber_dupbv( &(*vp)[ i ].word, &v[ i ].word );
+		*((slap_mask_t *)&(*vp)[ i ].mask) = v[ i ].mask;
+	}
+
+	BER_BVZERO( &(*vp)[ i ].word );
+
+	return 0;
+}
+
+int
+slap_verbmasks_destroy( slap_verbmasks *v )
+{
+	int		i;
+
+	assert( v != NULL );
+
+	for ( i = 0; !BER_BVISNULL( &v[ i ].word ); i++ ) {
+		ch_free( v[ i ].word.bv_val );
+	}
+
+	ch_free( v );
+
+	return 0;
+}
+
+int
+slap_verbmasks_append(
+	slap_verbmasks	**vp,
+	slap_mask_t	m,
+	struct berval	*v,
+	slap_mask_t	*ignore )
+{
+	int	i;
+
+	if ( !m ) {
+		return LDAP_OPERATIONS_ERROR;
+	}
+
+	for ( i = 0; !BER_BVISNULL( &(*vp)[ i ].word ); i++ ) {
+		if ( !(*vp)[ i ].mask ) continue;
+
+		if ( ignore != NULL ) {
+			int	j;
+
+			for ( j = 0; ignore[ j ] != 0; j++ ) {
+				if ( (*vp)[ i ].mask == ignore[ j ] ) {
+					goto check_next;
+				}
+			}
+		}
+
+		if ( ( m & (*vp)[ i ].mask ) == (*vp)[ i ].mask ) {
+			if ( ber_bvstrcasecmp( v, &(*vp)[ i ].word ) == 0 ) {
+				/* already set; ignore */
+				return LDAP_SUCCESS;
+			}
+			/* conflicts */
+			return LDAP_TYPE_OR_VALUE_EXISTS;
+		}
+
+		if ( m & (*vp)[ i ].mask ) {
+			/* conflicts */
+			return LDAP_CONSTRAINT_VIOLATION;
+		}
+check_next:;
+	}
+
+	*vp = ch_realloc( *vp, sizeof( slap_verbmasks ) * ( i + 2 ) );
+	ber_dupbv( &(*vp)[ i ].word, v );
+	*((slap_mask_t *)&(*vp)[ i ].mask) = m;
+	BER_BVZERO( &(*vp)[ i + 1 ].word );
+
+	return LDAP_SUCCESS;
+}
+
+int
+enum_to_verb(slap_verbmasks *v, slap_mask_t m, struct berval *bv) {
+	int i;
+
+	for (i=0; !BER_BVISNULL(&v[i].word); i++) {
+		if ( m == v[i].mask ) {
+			if ( bv != NULL ) {
+				*bv = v[i].word;
+			}
+			return i;
+		}
+	}
+	return -1;
+}
+
+/* register a new verbmask */
+int
+slap_verbmask_register(
+	slap_verbmasks *vm_,
+	slap_verbmasks **vmp,
+	struct berval *bv,
+	int mask )
+{
+	slap_verbmasks	*vm = *vmp;
+	int		i;
+
+	/* check for duplicate word */
+	/* NOTE: we accept duplicate codes; the first occurrence will be used
+	 * when mapping from mask to verb */
+	i = verb_to_mask( bv->bv_val, vm );
+	if ( !BER_BVISNULL( &vm[ i ].word ) ) {
+		return -1;
+	}
+
+	for ( i = 0; !BER_BVISNULL( &vm[ i ].word ); i++ )
+		;
+
+	if ( vm == vm_ ) {
+		/* first time: duplicate array */
+		vm = ch_calloc( i + 2, sizeof( slap_verbmasks ) );
+		for ( i = 0; !BER_BVISNULL( &vm_[ i ].word ); i++ )
+		{
+			ber_dupbv( &vm[ i ].word, &vm_[ i ].word );
+			*((slap_mask_t*)&vm[ i ].mask) = vm_[ i ].mask;
+		}
+
+	} else {
+		vm = ch_realloc( vm, (i + 2) * sizeof( slap_verbmasks ) );
+	}
+
+	ber_dupbv( &vm[ i ].word, bv );
+	*((slap_mask_t*)&vm[ i ].mask) = mask;
+
+	BER_BVZERO( &vm[ i+1 ].word );
+
+	*vmp = vm;
+
+	return i;
+}