Initial version of control free/dup functions.

libraries/libldap/controls.c

@@ -0,0 +1,142 @@
+/*
+ * LDAP controls
+ */
+
+#include "portable.h"
+
+#include <ac/time.h>
+#include <ac/string.h>
+
+#include "ldap-int.h"
+
+/*
+ * Free a LDAPControl
+ */
+void
+ldap_control_free( LDAPControl *c )
+{
+	if ( c != NULL ) {
+		if( c->ldctl_oid != NULL) {
+			free( c->ldctl_oid );
+		}
+
+		if( c->ldctl_value.bv_val != NULL ) {
+			free( c->ldctl_value.bv_val );
+		}
+
+		free( c );
+	}
+}
+
+/*
+ * Free an array of LDAPControl's
+ */
+void
+ldap_controls_free( LDAPControl **controls )
+{
+	if ( controls != NULL ) {
+		LDAPControl *c;
+
+		for(c = *controls; c != NULL; c++) {
+			ldap_control_free( c );
+		}
+
+		free( controls );
+	}
+}
+
+/*
+ * Duplicate an array of LDAPControl
+ */
+LDAPControl **ldap_controls_dup( LDAPControl **controls )
+{
+	LDAPControl **new;
+	int i;
+
+	if ( controls == NULL ) {
+		return NULL;
+	}
+
+	/* count the controls */
+	for(i=0; controls[i] != NULL; i++) /* empty */ ;
+
+	if( i < 1 ) {
+		/* no controls to duplicate */
+		return NULL;
+	}
+
+	new = (LDAPControl **) malloc( i * sizeof(LDAPControl *) );
+
+	if( new == NULL ) {
+		/* memory allocation failure */
+		return NULL;
+	}
+
+	/* duplicate the controls */
+	for(i=0; controls[i] != NULL; i++) {
+		new[i] = ldap_control_dup( controls[i] );
+
+		if( new[i] == NULL ) {
+			ldap_controls_free( new );
+			return NULL;
+		}
+	}
+
+	new[i] = NULL;
+
+	return new;
+}
+
+/*
+ * Duplicate a LDAPControl
+ */
+LDAPControl *ldap_control_dup( LDAPControl *c )
+{
+	LDAPControl *new;
+
+	if ( c == NULL ) {
+		return NULL;
+	}
+
+	new = (LDAPControl *) malloc( sizeof(LDAPControl) );
+
+	if( new == NULL ) {
+		return NULL;
+	}
+
+	if( c->ldctl_oid != NULL ) {
+		new->ldctl_oid = ldap_strdup( c->ldctl_oid );
+
+		if(new->ldctl_oid == NULL) {
+			free( new );
+			return NULL;
+		}
+
+	} else {
+		new->ldctl_oid = NULL;
+	}
+
+	if( c->ldctl_value.bv_len > 0 ) {
+		new->ldctl_value.bv_val = (char *) malloc( c->ldctl_value.bv_len );
+
+		if(new->ldctl_value.bv_val == NULL) {
+			if(new->ldctl_oid != NULL) {
+				free( new->ldctl_oid );
+			}
+			free( new );
+			return NULL;
+		}
+		
+		SAFEMEMCPY( new->ldctl_value.bv_val, c->ldctl_value.bv_val, 
+			c->ldctl_value.bv_len );
+
+		new->ldctl_value.bv_len = c->ldctl_value.bv_len;
+
+	} else {
+		new->ldctl_value.bv_len = 0;
+		new->ldctl_value.bv_val = NULL;
+	}
+
+	new->ldctl_iscritical = c->ldctl_iscritical;
+	return new;
+}