---
name: "X509_STORE_new"
section: "3ssl"
platform: "linux"
package: "openssl"
version: "3.6.5-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/X509_STORE_new"
---

# X509\_STORE\_new(3ssl)

X509\_STORE allocation, freeing and locking functions

## NAME

X509\_STORE\_new, X509\_STORE\_up\_ref, X509\_STORE\_free, X509\_STORE\_lock,X509\_STORE\_unlock - X509\_STORE allocation, freeing and locking functions

## SYNOPSIS

```
 #include <openssl/x509_vfy.h>
 X509_STORE *X509_STORE_new(void);
 void X509_STORE_free(X509_STORE *xs);
 int X509_STORE_lock(X509_STORE *xs);
 int X509_STORE_unlock(X509_STORE *xs);
 int X509_STORE_up_ref(X509_STORE *xs);
```

## DESCRIPTION

The **X509\_STORE\_new()** function returns a new X509\_STORE.

**X509\_STORE\_up\_ref()** increments the reference count associated with the X509\_STORE object.

**X509\_STORE\_lock()** locks the store from modification by other threads, **X509\_STORE\_unlock()** unlocks it.

**X509\_STORE\_free()** frees up a single X509\_STORE object. If the argument is NULL, nothing is done.

## RETURN VALUES

**X509\_STORE\_new()** returns a newly created X509\_STORE or NULL if the call fails.

**X509\_STORE\_up\_ref()**, **X509\_STORE\_lock()** and **X509\_STORE\_unlock()** return 1 for success and 0 for failure.

**X509\_STORE\_free()** does not return values.

## SEE ALSO

**X509\_STORE\_set\_verify\_cb\_func**(3) **X509\_STORE\_get0\_param**(3)

## HISTORY

The **X509\_STORE\_up\_ref()**, **X509\_STORE\_lock()** and **X509\_STORE\_unlock()** functions were added in OpenSSL 1.1.0.

## COPYRIGHT

Copyright 2016-2024 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License").  You may not use this file except in compliance with the License.  You can obtain a copy in the file LICENSE in the source distribution or at \<https://www.openssl.org/source/license.html\>.