---
name: "libssh2_base64_decode"
section: "3"
platform: "linux"
package: "libssh2"
version: "1.11.1-7"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/libssh2_base64_decode"
---

# libssh2\_base64\_decode(3)

decode a base64 encoded string

## NAME

libssh2\_base64\_decode - decode a base64 encoded string

## SYNOPSIS

```
#include <libssh2.h>
int
libssh2_base64_decode(LIBSSH2_SESSION *session, char **dest,
                      unsigned int *dest_len, const char *src,
                      unsigned int src_len);
```

## DESCRIPTION

This function is deemed DEPRECATED and will be removed from libssh2 in a future version. Do not use it!

Decode a base64 chunk and store it into a newly allocated buffer. 'dest\_len' will be set to hold the length of the returned buffer that '\*dest' will point to.

The returned buffer is allocated by this function, but it is not clear how to free that memory!

## BUGS

The memory that \*dest points to is allocated by the malloc function libssh2 uses, but there is no way for an application to free this data in a safe and reliable way!

## RETURN VALUE

0 if successful, -1 if any error occurred.