From 2a746777991e89c73a757266d620c318104c5657 Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Fri, 20 Aug 1999 19:00:44 +0000
Subject: [PATCH] const'fication

---
 servers/slapd/aclparse.c                  |  4 +-
 servers/slapd/attr.c                      |  6 +-
 servers/slapd/back-ldbm/attr.c            |  2 +-
 servers/slapd/back-ldbm/cache.c           |  4 +-
 servers/slapd/back-ldbm/config.c          |  2 +-
 servers/slapd/back-ldbm/dn2id.c           | 10 +--
 servers/slapd/back-ldbm/external.h        |  6 +-
 servers/slapd/back-ldbm/group.c           | 12 ++--
 servers/slapd/back-ldbm/idl.c             |  6 +-
 servers/slapd/back-ldbm/proto-back-ldbm.h | 17 ++---
 servers/slapd/backend.c                   | 20 +++---
 servers/slapd/bind.c                      |  3 +-
 servers/slapd/charray.c                   | 17 ++---
 servers/slapd/config.c                    |  2 +-
 servers/slapd/dn.c                        | 17 ++---
 servers/slapd/lock.c                      |  2 +-
 servers/slapd/proto-slap.h                | 82 +++++++++++++----------
 servers/slapd/result.c                    | 10 +--
 servers/slapd/schema.c                    | 12 ++--
 servers/slapd/schemaparse.c               | 12 ++--
 servers/slapd/slap.h                      |  8 +--
 servers/slapd/tools/mimic.c               | 10 +--
 22 files changed, 138 insertions(+), 126 deletions(-)

diff --git a/servers/slapd/aclparse.c b/servers/slapd/aclparse.c
index f31993f2d2..85748b9552 100644
--- a/servers/slapd/aclparse.c
+++ b/servers/slapd/aclparse.c
@@ -26,7 +26,7 @@ static void		print_access(Access *b);
 #endif
 
 static int
-regtest(char *fname, int lineno, char *pat) {
+regtest(const char *fname, int lineno, char *pat) {
 	int e;
 	regex_t re;
 
@@ -84,7 +84,7 @@ regtest(char *fname, int lineno, char *pat) {
 void
 parse_acl(
     Backend	*be,
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char	**argv
diff --git a/servers/slapd/attr.c b/servers/slapd/attr.c
index 74e5c241c5..2aadf7056c 100644
--- a/servers/slapd/attr.c
+++ b/servers/slapd/attr.c
@@ -191,7 +191,7 @@ attr_merge(
 Attribute *
 attr_find(
     Attribute	*a,
-    char	*type
+    const char	*type
 )
 {
 	for ( ; a != NULL; a = a->a_next ) {
@@ -213,7 +213,7 @@ attr_find(
 int
 attr_delete(
     Attribute	**attrs,
-    char	*type
+    const char	*type
 )
 {
 	Attribute	**a;
@@ -261,7 +261,7 @@ attr_syntax( char *type )
 
 void
 attr_syntax_config(
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char	**argv
diff --git a/servers/slapd/back-ldbm/attr.c b/servers/slapd/back-ldbm/attr.c
index ea7f85da1b..be71dcf2f7 100644
--- a/servers/slapd/back-ldbm/attr.c
+++ b/servers/slapd/back-ldbm/attr.c
@@ -88,7 +88,7 @@ attr_masks(
 void
 attr_index_config(
     struct ldbminfo	*li,
-    char		*fname,
+    const char		*fname,
     int			lineno,
     int			argc,
     char		**argv,
diff --git a/servers/slapd/back-ldbm/cache.c b/servers/slapd/back-ldbm/cache.c
index 66ecb5ba9b..d23747d995 100644
--- a/servers/slapd/back-ldbm/cache.c
+++ b/servers/slapd/back-ldbm/cache.c
@@ -435,14 +435,14 @@ ID
 cache_find_entry_dn2id(
 	Backend		*be,
     Cache	*cache,
-    char		*dn
+    const char		*dn
 )
 {
 	Entry		e, *ep;
 	ID			id;
 	int count = 0;
 
-	e.e_dn = dn;
+	e.e_dn = (char *) dn;
 	e.e_ndn = ch_strdup( dn );
 	(void) dn_normalize_case( e.e_ndn );
 
diff --git a/servers/slapd/back-ldbm/config.c b/servers/slapd/back-ldbm/config.c
index 80cabd6a47..57cbd36c3d 100644
--- a/servers/slapd/back-ldbm/config.c
+++ b/servers/slapd/back-ldbm/config.c
@@ -18,7 +18,7 @@
 int
 ldbm_back_db_config(
     Backend	*be,
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char	**argv
diff --git a/servers/slapd/back-ldbm/dn2id.c b/servers/slapd/back-ldbm/dn2id.c
index 2e1238ec9f..26f75476aa 100644
--- a/servers/slapd/back-ldbm/dn2id.c
+++ b/servers/slapd/back-ldbm/dn2id.c
@@ -18,7 +18,7 @@
 int
 dn2id_add(
     Backend	*be,
-    char	*dn,
+    const char	*dn,
     ID		id
 )
 {
@@ -99,7 +99,7 @@ dn2id_add(
 ID
 dn2id(
     Backend	*be,
-    char	*dn
+    const char	*dn
 )
 {
 	struct ldbminfo	*li = (struct ldbminfo *) be->be_private;
@@ -151,7 +151,7 @@ dn2id(
 ID_BLOCK *
 dn2idl(
     Backend	*be,
-    char	*dn,
+    const char	*dn,
 	int		prefix
 )
 {
@@ -187,7 +187,7 @@ dn2idl(
 int
 dn2id_delete(
     Backend	*be,
-    char	*dn
+    const char	*dn
 )
 {
 	DBCache	*db;
@@ -228,7 +228,7 @@ dn2id_delete(
 Entry *
 dn2entry_rw(
     Backend	*be,
-    char	*dn,
+    const char	*dn,
     Entry	**matched,
     int         rw
 )
diff --git a/servers/slapd/back-ldbm/external.h b/servers/slapd/back-ldbm/external.h
index c35e612d11..31fddcf0e5 100644
--- a/servers/slapd/back-ldbm/external.h
+++ b/servers/slapd/back-ldbm/external.h
@@ -19,7 +19,7 @@ extern int	ldbm_back_db_close LDAP_P(( BackendDB *bd ));
 extern int	ldbm_back_db_destroy LDAP_P(( BackendDB *bd ));
 
 extern int	ldbm_back_db_config LDAP_P(( BackendDB *bd,
-	char *fname, int lineno, int argc, char **argv ));
+	const char *fname, int lineno, int argc, char **argv ));
 
 extern int ldbm_back_bind LDAP_P(( BackendDB *bd,
 	Connection *conn, Operation *op,
@@ -57,8 +57,8 @@ extern int	ldbm_back_abandon LDAP_P(( BackendDB *bd,
 	Connection *conn, Operation *op, ber_int_t msgid ));
 
 extern int	ldbm_back_group LDAP_P(( BackendDB *bd,
-	Entry *target, char* gr_ndn, char* op_ndn,
-	char* objectclassValue, char* groupattrName));
+	Entry *target, const char* gr_ndn, const char* op_ndn,
+	const char* objectclassValue, const char* groupattrName));
 
 
 /* hooks for slap tools */
diff --git a/servers/slapd/back-ldbm/group.c b/servers/slapd/back-ldbm/group.c
index 252b584166..fbbc7f21b6 100644
--- a/servers/slapd/back-ldbm/group.c
+++ b/servers/slapd/back-ldbm/group.c
@@ -24,10 +24,10 @@ int
 ldbm_back_group(
 	Backend	*be,
 	Entry	*target,
-	char	*gr_ndn,
-	char	*op_ndn,
-	char	*objectclassValue,
-	char	*groupattrName
+	const char	*gr_ndn,
+	const char	*op_ndn,
+	const char	*objectclassValue,
+	const char	*groupattrName
 )
 {
 	struct ldbminfo *li = (struct ldbminfo *) be->be_private;    
@@ -104,7 +104,7 @@ ldbm_back_group(
 		goto return_results;
 	}
 
-	bv.bv_val = objectclassValue;
+	bv.bv_val = (char *) objectclassValue;
 	bv.bv_len = strlen( bv.bv_val );         
 
 	if (value_find(attr->a_vals, &bv, attr->a_syntax, 1) != 0) {
@@ -125,7 +125,7 @@ ldbm_back_group(
 		"<= ldbm_back_group: found objectClass %s and %s\n",
 		objectclassValue, groupattrName, 0 ); 
 
-	bv.bv_val = op_ndn;
+	bv.bv_val = (char *) op_ndn;
 	bv.bv_len = strlen( op_ndn );         
 
 	if( value_find( attr->a_vals, &bv, attr->a_syntax, 1) != 0 )
diff --git a/servers/slapd/back-ldbm/idl.c b/servers/slapd/back-ldbm/idl.c
index 47c8a305cc..31707adf0b 100644
--- a/servers/slapd/back-ldbm/idl.c
+++ b/servers/slapd/back-ldbm/idl.c
@@ -69,7 +69,7 @@ idl_fetch_one(
 )
 {
 	Datum	data;
-	ID_BLOCK	*idl;
+	ID_BLOCK	idl;
 
 	/* Debug( LDAP_DEBUG_TRACE, "=> idl_fetch_one\n", 0, 0, 0 ); */
 
@@ -79,10 +79,10 @@ idl_fetch_one(
 		return NULL;
 	}
 
-	idl = idl_dup( (ID_BLOCK *) data.dptr);
+	memcpy( &idl, data.dptr, data.dsize );
 	ldbm_datum_free( db->dbc_db, data );
 
-	return( idl );
+	return idl_dup( &idl );
 }
 
 
diff --git a/servers/slapd/back-ldbm/proto-back-ldbm.h b/servers/slapd/back-ldbm/proto-back-ldbm.h
index 90ea6281d2..641c52d2b1 100644
--- a/servers/slapd/back-ldbm/proto-back-ldbm.h
+++ b/servers/slapd/back-ldbm/proto-back-ldbm.h
@@ -34,8 +34,9 @@ Entry *deref_internal_r LDAP_P((
 
 void attr_masks LDAP_P(( struct ldbminfo *li, char *type, int *indexmask,
  int *syntaxmask ));
-void attr_index_config LDAP_P(( struct ldbminfo *li, char *fname, int lineno,
- int argc, char **argv, int init ));
+void attr_index_config LDAP_P(( struct ldbminfo *li,
+	const char *fname, int lineno,
+	int argc, char **argv, int init ));
 void attr_index_destroy LDAP_P(( Avlnode *tree ));
 
 /*
@@ -48,7 +49,7 @@ void cache_return_entry_rw LDAP_P(( Cache *cache, Entry *e, int rw ));
 #define cache_return_entry_r(c, e) cache_return_entry_rw((c), (e), 0)
 #define cache_return_entry_w(c, e) cache_return_entry_rw((c), (e), 1)
 
-ID cache_find_entry_dn2id LDAP_P(( Backend *be, Cache *cache, char *dn ));
+ID cache_find_entry_dn2id LDAP_P(( Backend *be, Cache *cache, const char *dn ));
 Entry * cache_find_entry_id LDAP_P(( Cache *cache, ID id, int rw ));
 int cache_delete_entry LDAP_P(( Cache *cache, Entry *e ));
 void cache_release_all LDAP_P(( Cache *cache ));
@@ -70,12 +71,12 @@ int ldbm_cache_delete LDAP_P(( DBCache *db, Datum key ));
  * dn2id.c
  */
 
-int dn2id_add LDAP_P(( Backend *be, char *dn, ID id ));
-ID dn2id LDAP_P(( Backend *be, char *dn ));
-ID_BLOCK *dn2idl LDAP_P(( Backend *be, char *dn, int prefix ));
-int dn2id_delete LDAP_P(( Backend *be, char *dn ));
+int dn2id_add LDAP_P(( Backend *be, const char *dn, ID id ));
+ID dn2id LDAP_P(( Backend *be, const char *dn ));
+ID_BLOCK *dn2idl LDAP_P(( Backend *be, const char *dn, int prefix ));
+int dn2id_delete LDAP_P(( Backend *be, const char *dn ));
 
-Entry * dn2entry_rw LDAP_P(( Backend *be, char *dn, Entry **matched, int rw ));
+Entry * dn2entry_rw LDAP_P(( Backend *be, const char *dn, Entry **matched, int rw ));
 #define dn2entry_r(be, dn, m) dn2entry_rw((be), (dn), (m), 0)
 #define dn2entry_w(be, dn, m) dn2entry_rw((be), (dn), (m), 1)
 
diff --git a/servers/slapd/backend.c b/servers/slapd/backend.c
index 7e8a1cf327..97552309a4 100644
--- a/servers/slapd/backend.c
+++ b/servers/slapd/backend.c
@@ -339,7 +339,7 @@ int backend_destroy(void)
 	return 0;
 }
 
-BackendInfo* backend_info(char *type)
+BackendInfo* backend_info(const char *type)
 {
 	int i;
 
@@ -356,7 +356,7 @@ BackendInfo* backend_info(char *type)
 
 BackendDB *
 backend_db_init(
-    char	*type
+    const char	*type
 )
 {
 	Backend	*be;
@@ -410,7 +410,7 @@ be_db_close( void )
 }
 
 Backend *
-select_backend( char * dn )
+select_backend( const char * dn )
 {
 	int	i, j, len, dnlen;
 
@@ -452,7 +452,7 @@ select_backend( char * dn )
 int
 be_issuffix(
     Backend	*be,
-    char	*suffix
+    const char	*suffix
 )
 {
 	int	i;
@@ -467,7 +467,7 @@ be_issuffix(
 }
 
 int
-be_isroot( Backend *be, char *ndn )
+be_isroot( Backend *be, const char *ndn )
 {
 	int rc;
 
@@ -491,7 +491,7 @@ be_root_dn( Backend *be )
 }
 
 int
-be_isroot_pw( Backend *be, char *ndn, struct berval *cred )
+be_isroot_pw( Backend *be, const char *ndn, struct berval *cred )
 {
 	int result;
 
@@ -578,10 +578,10 @@ int
 backend_group(
 	Backend	*be,
 	Entry	*target,
-	char	*gr_ndn,
-	char	*op_ndn,
-	char	*objectclassValue,
-	char	*groupattrName
+	const char	*gr_ndn,
+	const char	*op_ndn,
+	const char	*objectclassValue,
+	const char	*groupattrName
 )
 {
 	if (be->be_group)
diff --git a/servers/slapd/bind.c b/servers/slapd/bind.c
index 196fa67cf3..f6800973a2 100644
--- a/servers/slapd/bind.c
+++ b/servers/slapd/bind.c
@@ -35,7 +35,8 @@ do_bind(
 	ber_int_t		version;
 	ber_tag_t method;
 	char		*mech;
-	char		*dn, *ndn;
+	char		*dn;
+	char *ndn;
 	ber_tag_t	tag;
 	int			rc = LDAP_SUCCESS;
 	struct berval	cred;
diff --git a/servers/slapd/charray.c b/servers/slapd/charray.c
index c7902bb844..8c27f1fbd0 100644
--- a/servers/slapd/charray.c
+++ b/servers/slapd/charray.c
@@ -16,7 +16,7 @@
 void
 charray_add(
     char	***a,
-    char	*s
+    const char	*s
 )
 {
 	int	n;
@@ -40,7 +40,7 @@ charray_add(
 void
 charray_merge(
     char	***a,
-    char	**s
+    const char	**s
 )
 {
 	int	i, n, nn;
@@ -79,8 +79,8 @@ charray_free( char **array )
 
 int
 charray_inlist(
-    char	**a,
-    char	*s
+    const char	**a,
+    const char	*s
 )
 {
 	int	i;
@@ -95,7 +95,7 @@ charray_inlist(
 }
 
 char **
-charray_dup( char **a )
+charray_dup( const char **a )
 {
 	int	i;
 	char	**new;
@@ -115,7 +115,7 @@ charray_dup( char **a )
 
 
 char *
-charray2str( char **a )
+charray2str( const char **a )
 {
 	char *s;
 	int i;
@@ -143,15 +143,16 @@ charray2str( char **a )
 
 
 char **
-str2charray( char *str, char *brkstr )
+str2charray( const char *str_in, const char *brkstr )
 {
+	char	*str;
 	char	**res;
 	char	*s;
 	char	*lasts;
 	int	i;
 
 	/* protect the input string from strtok */
-	str = ch_strdup( str );
+	str = ch_strdup( str_in );
 
 	i = 1;
 	for ( s = str; *s; s++ ) {
diff --git a/servers/slapd/config.c b/servers/slapd/config.c
index 294b8ed06f..f669e359d6 100644
--- a/servers/slapd/config.c
+++ b/servers/slapd/config.c
@@ -43,7 +43,7 @@ static int	fp_parse_line(char *line, int *argcp, char **argv);
 static char	*strtok_quote(char *line, char *sep);
 
 int
-read_config( char *fname )
+read_config( const char *fname )
 {
 	FILE	*fp;
 	char	*line, *savefname, *saveline;
diff --git a/servers/slapd/dn.c b/servers/slapd/dn.c
index c74ff919b1..be724852e0 100644
--- a/servers/slapd/dn.c
+++ b/servers/slapd/dn.c
@@ -197,10 +197,10 @@ dn_normalize_case( char *dn )
 char *
 dn_parent(
     Backend	*be,
-    char	*dn
+    const char	*dn
 )
 {
-	char	*s;
+	const char	*s;
 	int	inquote;
 
 	if( dn == NULL ) {
@@ -345,21 +345,19 @@ char * dn_rdn(
  */
 char **dn_subtree(
 	Backend	*be,
-    char	*dn )
+    const char	*dn )
 {
 	char *child, *parent;
 	char **subtree = NULL;
 	
-	child = dn;
+	child = ch_strdup( dn );
 
 	do {
 		charray_add( &subtree, child );
 
 		parent = dn_parent( be, child );
 
-		if( child != dn ) {
-			free( child );
-		}
+		free( child );
 
 		child = parent;
 	} while ( child != NULL );
@@ -551,7 +549,10 @@ int rdn_validate( const char * rdn )
  */
 
 void
-build_new_dn( char ** new_dn, char *e_dn, char * p_dn, char * newrdn )
+build_new_dn( char ** new_dn,
+	const char *e_dn,
+	const char * p_dn,
+	const char * newrdn )
 {
 
     if ( p_dn == NULL ) {
diff --git a/servers/slapd/lock.c b/servers/slapd/lock.c
index ac109065a2..97ac5f8968 100644
--- a/servers/slapd/lock.c
+++ b/servers/slapd/lock.c
@@ -22,7 +22,7 @@
 #include "slap.h"
 
 FILE *
-lock_fopen( char *fname, char *type, FILE **lfp )
+lock_fopen( const char *fname, const char *type, FILE **lfp )
 {
 	FILE	*fp;
 	char	buf[MAXPATHLEN];
diff --git a/servers/slapd/proto-slap.h b/servers/slapd/proto-slap.h
index a8dfa588e2..44a570982e 100644
--- a/servers/slapd/proto-slap.h
+++ b/servers/slapd/proto-slap.h
@@ -36,7 +36,10 @@ int acl_check_modlist LDAP_P(( Backend *be,
  * aclparse.c
  */
 
-void parse_acl LDAP_P(( Backend *be, char *fname, int lineno, int argc, char **argv ));
+void parse_acl LDAP_P(( Backend *be,
+	const char *fname,
+	int lineno,
+	int argc, char **argv ));
 char * access2str LDAP_P(( int access ));
 int str2access LDAP_P(( char *str ));
 
@@ -50,10 +53,10 @@ char * attr_normalize LDAP_P(( char *s ));
 int attr_merge_fast LDAP_P(( Entry *e, char *type, struct berval **vals, int  nvals,
 	int  naddvals, int  *maxvals, Attribute ***a ));
 int attr_merge LDAP_P(( Entry *e, char *type, struct berval **vals ));
-Attribute * attr_find LDAP_P(( Attribute *a, char *type ));
-int attr_delete LDAP_P(( Attribute **attrs, char *type ));
+Attribute * attr_find LDAP_P(( Attribute *a, const char *type ));
+int attr_delete LDAP_P(( Attribute **attrs, const char *type ));
 int attr_syntax LDAP_P(( char *type ));
-void attr_syntax_config LDAP_P(( char *fname, int lineno, int argc, char **argv ));
+void attr_syntax_config LDAP_P(( const char *fname, int lineno, int argc, char **argv ));
 AttributeType * at_find LDAP_P(( const char *name ));
 int at_find_in_list LDAP_P(( AttributeType *sat, AttributeType **list ));
 int at_append_to_list LDAP_P(( AttributeType *sat, AttributeType ***listp ));
@@ -84,14 +87,14 @@ int backend_startup LDAP_P((Backend *be));
 int backend_shutdown LDAP_P((Backend *be));
 int backend_destroy LDAP_P((void));
 
-BackendInfo * backend_info LDAP_P(( char *type ));
-BackendDB * backend_db_init LDAP_P(( char *type ));
+BackendInfo * backend_info LDAP_P(( const char *type ));
+BackendDB * backend_db_init LDAP_P(( const char *type ));
 
-BackendDB * select_backend LDAP_P(( char * dn ));
+BackendDB * select_backend LDAP_P(( const char * dn ));
 
-int be_issuffix LDAP_P(( Backend *be, char *suffix ));
-int be_isroot LDAP_P(( Backend *be, char *ndn ));
-int be_isroot_pw LDAP_P(( Backend *be, char *ndn, struct berval *cred ));
+int be_issuffix LDAP_P(( Backend *be, const char *suffix ));
+int be_isroot LDAP_P(( Backend *be, const char *ndn ));
+int be_isroot_pw LDAP_P(( Backend *be, const char *ndn, struct berval *cred ));
 char* be_root_dn LDAP_P(( Backend *be ));
 int be_entry_release_rw LDAP_P(( Backend *be, Entry *e, int rw ));
 #define be_entry_release_r( be, e ) be_entry_release_rw( be, e, 0 )
@@ -105,8 +108,10 @@ extern int	backend_connection_destroy LDAP_P((Connection *conn));
 
 extern int	backend_group LDAP_P((Backend *be,
 	Entry *target,
-	char *gr_ndn, char *op_ndn,
-	char *objectclassValue, char *groupattrName));
+	const char *gr_ndn,
+	const char *op_ndn,
+	const char *objectclassValue,
+	const char *groupattrName));
 
 #ifdef SLAPD_SCHEMA_DN
 /* temporary extern for temporary routine*/
@@ -142,13 +147,13 @@ void   ch_free LDAP_P(( void * ));
  * charray.c
  */
 
-void charray_add LDAP_P(( char ***a, char *s ));
-void charray_merge LDAP_P(( char ***a, char **s ));
+void charray_add LDAP_P(( char ***a, const char *s ));
+void charray_merge LDAP_P(( char ***a, const char **s ));
 void charray_free LDAP_P(( char **array ));
-int charray_inlist LDAP_P(( char **a, char *s ));
-char ** charray_dup LDAP_P(( char **a ));
-char ** str2charray LDAP_P(( char *str, char *brkstr ));
-char * charray2str LDAP_P(( char **a ));
+int charray_inlist LDAP_P(( const char **a, const char *s ));
+char ** charray_dup LDAP_P(( const char **a ));
+char ** str2charray LDAP_P(( const char *str, const char *brkstr ));
+char * charray2str LDAP_P(( const char **a ));
 
 /*
  * controls.c
@@ -164,7 +169,7 @@ int get_manageDSAit LDAP_P(( Operation *op ));
  * config.c
  */
 
-int read_config LDAP_P(( char *fname ));
+int read_config LDAP_P(( const char *fname ));
 
 /*
  * connection.c
@@ -201,8 +206,8 @@ void connection_done LDAP_P((Connection *));
 
 char * dn_normalize LDAP_P(( char *dn ));
 char * dn_normalize_case LDAP_P(( char *dn ));
-char * dn_parent LDAP_P(( Backend *be, char *dn ));
-char ** dn_subtree LDAP_P(( Backend *be, char *dn ));
+char * dn_parent LDAP_P(( Backend *be, const char *dn ));
+char ** dn_subtree LDAP_P(( Backend *be, const char *dn ));
 char * dn_rdn LDAP_P(( Backend *be, char *dn ));
 int dn_issuffix LDAP_P(( char *dn, char *suffix ));
 #ifdef DNS_DN
@@ -213,8 +218,11 @@ char * str2lower LDAP_P(( char *str ));
 int rdn_validate LDAP_P(( const char* str ));
 char * rdn_attr_value LDAP_P(( char * rdn ));
 char * rdn_attr_type LDAP_P(( char * rdn ));
-void build_new_dn LDAP_P(( char ** new_dn, char *e_dn, char * p_dn,
-			   char * newrdn ));
+
+void build_new_dn LDAP_P(( char ** new_dn,
+	const char *e_dn,
+	const char * p_dn,
+	const char * newrdn ));
 /*
  * entry.c
  */
@@ -248,7 +256,7 @@ int test_filter LDAP_P(( Backend *be, Connection *conn, Operation *op, Entry *e,
  * lock.c
  */
 
-FILE * lock_fopen LDAP_P(( char *fname, char *type, FILE **lfp ));
+FILE * lock_fopen LDAP_P(( const char *fname, const char *type, FILE **lfp ));
 int lock_fclose LDAP_P(( FILE *fp, FILE *lfp ));
 
 /*
@@ -310,17 +318,17 @@ struct berval **get_entry_referrals LDAP_P((
 
 void send_ldap_result LDAP_P((
 	Connection *conn, Operation *op,
-	int err, char *matched, char *text,
+	int err, const char *matched, const char *text,
 	struct berval **refs,
 	LDAPControl **ctrls ));
 
 void send_ldap_disconnect LDAP_P((
 	Connection *conn, Operation *op,
-	int err, char *text ));
+	int err, const char *text ));
 
 void send_search_result LDAP_P((
 	Connection *conn, Operation *op,
-	int err, char *matched, char *text,
+	int err, const char *matched, const char *text,
 	struct berval **refs,
 	LDAPControl **ctrls,
 	int nentries ));
@@ -352,9 +360,9 @@ int sasl_destroy(void);
  */
 
 int oc_schema_check LDAP_P(( Entry *e ));
-int oc_check_operational_attr LDAP_P(( char *type ));
-int oc_check_usermod_attr LDAP_P(( char *type ));
-int oc_check_no_usermod_attr LDAP_P(( char *type ));
+int oc_check_operational_attr LDAP_P(( const char *type ));
+int oc_check_usermod_attr LDAP_P(( const char *type ));
+int oc_check_no_usermod_attr LDAP_P(( const char *type ));
 ObjectClass *oc_find LDAP_P((const char *ocname));
 int oc_add LDAP_P((LDAP_OBJECT_CLASS *oc, const char **err));
 Syntax *syn_find LDAP_P((const char *synname));
@@ -365,7 +373,7 @@ int mr_add LDAP_P((LDAP_MATCHING_RULE *mr, slap_mr_normalize_func *normalize, sl
 void schema_info LDAP_P((Connection *conn, Operation *op, char **attrs, int attrsonly));
 int schema_init LDAP_P((void));
 
-int is_entry_objectclass LDAP_P(( Entry *, char* objectclass ));
+int is_entry_objectclass LDAP_P(( Entry *, const char* objectclass ));
 #define is_entry_alias(e)		is_entry_objectclass((e), "ALIAS")
 #define is_entry_referral(e)	is_entry_objectclass((e), "REFERRAL")
 
@@ -374,12 +382,12 @@ int is_entry_objectclass LDAP_P(( Entry *, char* objectclass ));
  * schemaparse.c
  */
 
-void parse_oc_old LDAP_P(( Backend *be, char *fname, int lineno, int argc, char **argv ));
-void parse_oc LDAP_P(( char *fname, int lineno, char *line, char **argv ));
-void parse_at LDAP_P(( char *fname, int lineno, char *line, char **argv ));
-void parse_oidm LDAP_P(( char *fname, int lineno, int argc, char **argv ));
+void parse_oc_old LDAP_P(( Backend *be, const char *fname, int lineno, int argc, char **argv ));
+void parse_oc LDAP_P(( const char *fname, int lineno, char *line, char **argv ));
+void parse_at LDAP_P(( const char *fname, int lineno, char *line, char **argv ));
+void parse_oidm LDAP_P(( const char *fname, int lineno, int argc, char **argv ));
 char *scherr2str LDAP_P((int code));
-int dscompare LDAP_P(( char *s1, char *s2del, char delim ));
+int dscompare LDAP_P(( const char *s1, const char *s2del, char delim ));
 /*
  * str2filter.c
  */
@@ -408,7 +416,7 @@ int value_find LDAP_P(( struct berval **vals, struct berval *v, int syntax,
  * user.c
  */
 #if defined(HAVE_PWD_H) && defined(HAVE_GRP_H)
-void slap_init_user LDAP_P(( char *username, char *groupname ));
+void slap_init_user LDAP_P(( const char *username, const char *groupname ));
 #endif
 
 /*
diff --git a/servers/slapd/result.c b/servers/slapd/result.c
index 6f3434276d..309350f646 100644
--- a/servers/slapd/result.c
+++ b/servers/slapd/result.c
@@ -299,7 +299,7 @@ send_ldap_disconnect(
     Connection	*conn,
     Operation	*op,
     ber_int_t	err,
-    char	*text
+    const char	*text
 )
 {
 	ber_tag_t tag;
@@ -353,8 +353,8 @@ send_ldap_result(
     Connection	*conn,
     Operation	*op,
     ber_int_t	err,
-    char	*matched,
-    char	*text,
+    const char	*matched,
+    const char	*text,
 	struct berval **ref,
 	LDAPControl **ctrls
 )
@@ -420,8 +420,8 @@ send_search_result(
     Connection	*conn,
     Operation	*op,
     ber_int_t	err,
-    char	*matched,
-	char	*text,
+    const char	*matched,
+	const char	*text,
     struct berval **refs,
 	LDAPControl **ctrls,
     int		nentries
diff --git a/servers/slapd/schema.c b/servers/slapd/schema.c
index b14680fda0..e347a5d693 100644
--- a/servers/slapd/schema.c
+++ b/servers/slapd/schema.c
@@ -180,7 +180,7 @@ static char *oc_no_usermod_attrs[] = {
  * check to see if attribute is 'operational' or not.
  */
 int
-oc_check_operational_attr( char *type )
+oc_check_operational_attr( const char *type )
 {
 	return charray_inlist( oc_operational_attrs, type )
 		|| charray_inlist( oc_usermod_attrs, type )
@@ -191,7 +191,7 @@ oc_check_operational_attr( char *type )
  * check to see if attribute can be user modified or not.
  */
 int
-oc_check_usermod_attr( char *type )
+oc_check_usermod_attr( const char *type )
 {
 	return charray_inlist( oc_usermod_attrs, type );
 }
@@ -200,7 +200,7 @@ oc_check_usermod_attr( char *type )
  * check to see if attribute is 'no user modification' or not.
  */
 int
-oc_check_no_usermod_attr( char *type )
+oc_check_no_usermod_attr( const char *type )
 {
 	return charray_inlist( oc_no_usermod_attrs, type );
 }
@@ -565,7 +565,7 @@ syn_find_desc( const char *syndesc, int *len )
 	Syntax		*synp;
 
 	for (synp = syn_list; synp; synp = synp->ssyn_next)
-		if ((*len = dscompare( synp->ssyn_syn.syn_desc, (char *)syndesc, '{')))
+		if ((*len = dscompare( synp->ssyn_syn.syn_desc, syndesc, '{')))
 			return synp;
 	return( NULL );
 }
@@ -1225,7 +1225,7 @@ oc_print( ObjectClass *oc )
 
 int is_entry_objectclass(
 	Entry*	e,
-	char*	oc)
+	const char*	oc)
 {
 	Attribute *attr;
 	struct berval bv;
@@ -1243,7 +1243,7 @@ int is_entry_objectclass(
 		return 0;
 	}
 
-	bv.bv_val = oc;
+	bv.bv_val = (char *) oc;
 	bv.bv_len = strlen( bv.bv_val );
 
 	if( value_find(attr->a_vals, &bv, attr->a_syntax, 1) != 0) {
diff --git a/servers/slapd/schemaparse.c b/servers/slapd/schemaparse.c
index a2e3514a41..938e8bbd39 100644
--- a/servers/slapd/schemaparse.c
+++ b/servers/slapd/schemaparse.c
@@ -51,7 +51,7 @@ scherr2str(int code)
 void
 parse_oc_old(
     Backend	*be,
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char	**argv
@@ -151,9 +151,9 @@ parse_oc_old(
  * matched, otherwise return length matched.
  */
 int
-dscompare(char *s1, char *s2, char delim)
+dscompare(const char *s1, const char *s2, char delim)
 {
-	char *orig = s1;
+	const char *orig = s1;
 	while (*s1++ == *s2++)
 		if (!s1[-1]) break;
 	--s1;
@@ -202,7 +202,7 @@ find_oidm(char *oid)
 
 void
 parse_oidm(
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char 	**argv
@@ -233,7 +233,7 @@ usage:		fprintf( stderr, "ObjectIdentifier <name> <oid>\n");
 
 void
 parse_oc(
-    char	*fname,
+    const char	*fname,
     int		lineno,
     char	*line,
     char	**argv
@@ -337,7 +337,7 @@ at_usage( void )
 
 void
 parse_at(
-    char	*fname,
+    const char	*fname,
     int		lineno,
     char	*line,
     char	**argv
diff --git a/servers/slapd/slap.h b/servers/slapd/slap.h
index 4f544f4ca6..077566ebb2 100644
--- a/servers/slapd/slap.h
+++ b/servers/slapd/slap.h
@@ -497,7 +497,7 @@ struct slap_backend_info {
 	 */
 	int (*bi_init)	LDAP_P((BackendInfo *bi));
 	int	(*bi_config) LDAP_P((BackendInfo *bi,
-		char *fname, int lineno, int argc, char **argv ));
+		const char *fname, int lineno, int argc, char **argv ));
 	int (*bi_open) LDAP_P((BackendInfo *bi));
 	int (*bi_close) LDAP_P((BackendInfo *bi));
 	int (*bi_destroy) LDAP_P((BackendInfo *bi));
@@ -525,7 +525,7 @@ struct slap_backend_info {
 	 */
 	int (*bi_db_init) LDAP_P((Backend *bd));
 	int	(*bi_db_config) LDAP_P((Backend *bd,
-		char *fname, int lineno, int argc, char **argv ));
+		const char *fname, int lineno, int argc, char **argv ));
 	int (*bi_db_open) LDAP_P((Backend *bd));
 	int (*bi_db_close) LDAP_P((Backend *bd));
 	int (*bi_db_destroy) LDAP_P((Backend *db));
@@ -567,8 +567,8 @@ struct slap_backend_info {
 	int	(*bi_entry_release_rw) LDAP_P((BackendDB *bd, Entry *e, int rw));
 
 	int	(*bi_acl_group)  LDAP_P((Backend *bd,
-		Entry *e, char *bdn, char *edn,
-		char *objectclassValue, char *groupattrName ));
+		Entry *e, const char *bdn, const char *edn,
+		const char *objectclassValue, const char *groupattrName ));
 
 	int	(*bi_connection_init) LDAP_P((BackendDB *bd,
 		struct slap_conn *c));
diff --git a/servers/slapd/tools/mimic.c b/servers/slapd/tools/mimic.c
index aa7d1dc41b..cc9c8b8c9a 100644
--- a/servers/slapd/tools/mimic.c
+++ b/servers/slapd/tools/mimic.c
@@ -32,7 +32,7 @@ send_ldap_disconnect(
     Connection	*conn,
     Operation	*op,
     ber_int_t	err,
-    char	*text
+    const char	*text
 )
 {
 	assert(0);
@@ -43,8 +43,8 @@ send_ldap_result(
 	Connection  *conn, 
 	Operation   *op,
 	int     err,
-	char    *matched,
-	char    *text,
+	const char    *matched,
+	const char    *text,
 	struct berval **refs,
 	LDAPControl **ctrls
 )        
@@ -57,8 +57,8 @@ send_search_result(
 	Connection  *conn, 
 	Operation   *op,
 	int     err,
-	char    *matched,
-	char    *text,
+	const char    *matched,
+	const char    *text,
 	struct berval **refs,
 	LDAPControl **ctrls,
 	int		nentries
-- 
2.39.5